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moonfire-nvr/server/src/h264.rs

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upgrade copyright notices * As discussed in #48, say "The Moonfire NVR Authors" at the top of every file rather than whoever created that file. Have one AUTHORS file listing everyone. * Consistently call it a "security camera network video recorder" rather than "security camera digital video recorder".
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// This file is part of Moonfire NVR, a security camera network video recorder.
add links directly from code to standards page
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// Copyright (C) 2021 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
shorten per-file copyright headers I'm tired of all the boilerplate, so use the new GPL-3.0-linking-exception license identifier instead in all the server components. I left the ui stuff alone because I'm just going to replace it (#111). Add a checker for the header because it's easy to forget.
2021-02-17 16:28:48 -05:00
// SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception.
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
//! H.264 decoding
//!
//! For the most part, Moonfire NVR does not try to understand the video codec. However, H.264 has
//! two byte stream encodings: ISO/IEC 14496-10 Annex B, and ISO/IEC 14496-15 AVC access units.
//! When streaming from RTSP, ffmpeg supplies the former. We need the latter to stick into `.mp4`
//! files. This file manages the conversion, both for the ffmpeg "extra data" (which should become
//! the ISO/IEC 14496-15 section 5.2.4.1 `AVCDecoderConfigurationRecord`) and the actual samples.
//!
add links directly from code to standards page
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//! See the [wiki page on standards and
//! specifications](https://github.com/scottlamb/moonfire-nvr/wiki/Standards-and-specifications)
//! for help finding a copy of the relevant standards. This code won't make much sense without them!
//!
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
//! ffmpeg of course has logic to do the same thing, but unfortunately it is not exposed except
//! through ffmpeg's own generated `.mp4` file. Extracting just this part of their `.mp4` files
//! would be more trouble than it's worth.
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
use byteorder::{BigEndian, ByteOrder, WriteBytesExt};
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
use failure::{bail, format_err, Error};
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
use std::convert::TryFrom;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// See ISO/IEC 14496-10 table 7-1 - NAL unit type codes, syntax element categories, and NAL unit
// type classes.
const NAL_UNIT_SEQ_PARAMETER_SET: u8 = 7;
const NAL_UNIT_PIC_PARAMETER_SET: u8 = 8;
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
const NAL_UNIT_TYPE_MASK: u8 = 0x1F; // bottom 5 bits of first byte of unit.
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
// For certain common sub stream anamorphic resolutions, add a pixel aspect ratio box.
more anamorphic streams * my dad's GW4089IP cameras use 720x480 * some Reolink cameras use 640x352 * I'm playing with rotated cameras (16x9 -> 9x16) I'd prefer to calculate pasp from a configured camera aspect ratio than to hardcode the assumption these are 16x9, but that requires a schema change. This is an improvement for now.
2021-05-22 17:43:58 -04:00
// Assume the camera is 16x9. These are just the standard wide mode; default_pixel_aspect_ratio
// tries the transpose also.
const PIXEL_ASPECT_RATIOS: [((u16, u16), (u16, u16)); 6] = [
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
((320, 240), (4, 3)),
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
((352, 240), (40, 33)),
more anamorphic streams * my dad's GW4089IP cameras use 720x480 * some Reolink cameras use 640x352 * I'm playing with rotated cameras (16x9 -> 9x16) I'd prefer to calculate pasp from a configured camera aspect ratio than to hardcode the assumption these are 16x9, but that requires a schema change. This is an improvement for now.
2021-05-22 17:43:58 -04:00
((640, 352), (44, 45)),
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
((640, 480), (4, 3)),
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
((704, 480), (40, 33)),
more anamorphic streams * my dad's GW4089IP cameras use 720x480 * some Reolink cameras use 640x352 * I'm playing with rotated cameras (16x9 -> 9x16) I'd prefer to calculate pasp from a configured camera aspect ratio than to hardcode the assumption these are 16x9, but that requires a schema change. This is an improvement for now.
2021-05-22 17:43:58 -04:00
((720, 480), (32, 27)),
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
];
/// Get the pixel aspect ratio to use if none is specified.
///
/// The Dahua IPC-HDW5231R-Z sets the aspect ratio in the H.264 SPS (correctly) for both square and
/// non-square pixels. The Hikvision DS-2CD2032-I doesn't set it, even though the sub stream's
/// pixels aren't square. So define a default based on the pixel dimensions to use if the camera
/// doesn't tell us what to do.
///
/// Note that at least in the case of .mp4 muxing, we don't need to fix up the underlying SPS.
/// SPS; PixelAspectRatioBox's definition says that it overrides the H.264-level declaration.
fn default_pixel_aspect_ratio(width: u16, height: u16) -> (u16, u16) {
more anamorphic streams * my dad's GW4089IP cameras use 720x480 * some Reolink cameras use 640x352 * I'm playing with rotated cameras (16x9 -> 9x16) I'd prefer to calculate pasp from a configured camera aspect ratio than to hardcode the assumption these are 16x9, but that requires a schema change. This is an improvement for now.
2021-05-22 17:43:58 -04:00
if width >= height {
PIXEL_ASPECT_RATIOS
.iter()
.find(|r| r.0 == (width, height))
.map(|r| r.1)
.unwrap_or((1, 1))
} else {
PIXEL_ASPECT_RATIOS
.iter()
.find(|r| r.0 == (height, width))
.map(|r| (r.1 .1, r.1 .0))
.unwrap_or((1, 1))
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
}
}
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
/// Decodes a H.264 Annex B byte stream into NAL units. Calls `f` for each NAL unit in the byte
/// stream. Aborts if `f` returns error.
///
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
/// Note `f` is called with the encoded NAL form, not the RBSP. The NAL header byte and any
/// emulation prevention bytes will be present.
///
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
/// See ISO/IEC 14496-10 section B.2: Byte stream NAL unit decoding process.
/// This is a relatively simple, unoptimized implementation.
///
/// TODO: detect invalid byte streams. For example, several 0x00s not followed by a 0x01, a stream
/// stream not starting with 0x00 0x00 0x00 0x01, or an empty NAL unit.
replace regex use with nom This reduces the binary size noticeably on my macOS machine (#70): unstripped stripped 1 before switching to clap 11.1 MiB 6.7 MiB 2 after switching to clap 11.4 MiB 6.9 MiB 3 without regex 10.1 MiB 5.9 MiB
2020-04-18 02:02:02 -04:00
fn decode_h264_annex_b<'a, F>(mut data: &'a [u8], mut f: F) -> Result<(), Error>
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
where
F: FnMut(&'a [u8]) -> Result<(), Error>,
{
replace regex use with nom This reduces the binary size noticeably on my macOS machine (#70): unstripped stripped 1 before switching to clap 11.1 MiB 6.7 MiB 2 after switching to clap 11.4 MiB 6.9 MiB 3 without regex 10.1 MiB 5.9 MiB
2020-04-18 02:02:02 -04:00
let start_code = &b"\x00\x00\x01"[..];
use nom::FindSubstring;
'outer: while let Some(pos) = data.find_substring(start_code) {
let mut unit = &data[0..pos];
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
data = &data[pos + start_code.len()..];
replace regex use with nom This reduces the binary size noticeably on my macOS machine (#70): unstripped stripped 1 before switching to clap 11.1 MiB 6.7 MiB 2 after switching to clap 11.4 MiB 6.9 MiB 3 without regex 10.1 MiB 5.9 MiB
2020-04-18 02:02:02 -04:00
// Have zero or more bytes that end in a start code. Strip out any trailing 0x00s and
// process the unit if there's anything left.
loop {
match unit.last() {
None => continue 'outer,
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
Some(b) if *b == 0 => {
unit = &unit[..unit.len() - 1];
}
replace regex use with nom This reduces the binary size noticeably on my macOS machine (#70): unstripped stripped 1 before switching to clap 11.1 MiB 6.7 MiB 2 after switching to clap 11.4 MiB 6.9 MiB 3 without regex 10.1 MiB 5.9 MiB
2020-04-18 02:02:02 -04:00
Some(_) => break,
}
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
}
replace regex use with nom This reduces the binary size noticeably on my macOS machine (#70): unstripped stripped 1 before switching to clap 11.1 MiB 6.7 MiB 2 after switching to clap 11.4 MiB 6.9 MiB 3 without regex 10.1 MiB 5.9 MiB
2020-04-18 02:02:02 -04:00
f(unit)?;
}
// No remaining start codes; likely a unit left.
if !data.is_empty() {
f(data)?;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
}
Ok(())
}
/// Parses Annex B extra data, returning a tuple holding the `sps` and `pps` substrings.
replace homegrown Error with failure crate This reduces boilerplate, making it a bit easier for me to split the db stuff out into its own crate.
2018-02-21 01:46:14 -05:00
fn parse_annex_b_extra_data(data: &[u8]) -> Result<(&[u8], &[u8]), Error> {
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
let mut sps = None;
let mut pps = None;
decode_h264_annex_b(data, |unit| {
let nal_type = (unit[0] as u8) & NAL_UNIT_TYPE_MASK;
match nal_type {
replace homegrown Error with failure crate This reduces boilerplate, making it a bit easier for me to split the db stuff out into its own crate.
2018-02-21 01:46:14 -05:00
NAL_UNIT_SEQ_PARAMETER_SET => sps = Some(unit),
NAL_UNIT_PIC_PARAMETER_SET => pps = Some(unit),
_ => bail!("Expected SPS and PPS; got type {}", nal_type),
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
};
Ok(())
})?;
match (sps, pps) {
(Some(s), Some(p)) => Ok((s, p)),
replace homegrown Error with failure crate This reduces boilerplate, making it a bit easier for me to split the db stuff out into its own crate.
2018-02-21 01:46:14 -05:00
_ => bail!("SPS and PPS must be specified"),
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
}
}
/// Parsed representation of ffmpeg's "extradata".
#[derive(Debug, PartialEq, Eq)]
pub struct ExtraData {
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
pub entry: db::VideoSampleEntryToInsert,
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
/// True iff sample data should be transformed from Annex B format to AVC format via a call to
/// `transform_sample_data`. (The assumption is that if the extra data was in Annex B format,
/// the sample data is also.)
pub need_transform: bool,
}
impl ExtraData {
/// Parses "extradata" from ffmpeg. This data may be in either Annex B format or AVC format.
replace homegrown Error with failure crate This reduces boilerplate, making it a bit easier for me to split the db stuff out into its own crate.
2018-02-21 01:46:14 -05:00
pub fn parse(extradata: &[u8], width: u16, height: u16) -> Result<ExtraData, Error> {
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
let raw_sps_and_pps;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
let need_transform;
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
let ctx;
let sps_owner;
let sps; // reference to either within ctx or to sps_owner.
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
if extradata.starts_with(b"\x00\x00\x00\x01") || extradata.starts_with(b"\x00\x00\x01") {
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// ffmpeg supplied "extradata" in Annex B format.
let (s, p) = parse_annex_b_extra_data(extradata)?;
use released versions of a few deps
2021-06-09 17:36:14 -04:00
let rbsp = h264_reader::rbsp::decode_nal(&s[1..]);
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
sps_owner = h264_reader::nal::sps::SeqParameterSet::from_bytes(&rbsp)
.map_err(|e| format_err!("Bad SPS: {:?}", e))?;
sps = &sps_owner;
raw_sps_and_pps = Some((s, p));
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
need_transform = true;
} else {
// Assume "extradata" holds an AVCDecoderConfiguration.
need_transform = false;
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
raw_sps_and_pps = None;
let avcc = h264_reader::avcc::AvcDecoderConfigurationRecord::try_from(extradata)
.map_err(|e| format_err!("Bad AvcDecoderConfigurationRecord: {:?}", e))?;
if avcc.num_of_sequence_parameter_sets() != 1 {
bail!("Multiple SPSs!");
}
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
ctx = avcc
.create_context(())
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
.map_err(|e| format_err!("Can't load SPS+PPS: {:?}", e))?;
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
sps = ctx
.sps_by_id(h264_reader::nal::pps::ParamSetId::from_u32(0).unwrap())
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
.ok_or_else(|| format_err!("No SPS 0"))?;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
};
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
let mut sample_entry = Vec::with_capacity(256);
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// This is a concatenation of the following boxes/classes.
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
// SampleEntry, ISO/IEC 14496-12 section 8.5.2.
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
let avc1_len_pos = sample_entry.len();
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
// length placeholder + type + reserved + data_reference_index = 1
sample_entry.extend_from_slice(b"\x00\x00\x00\x00avc1\x00\x00\x00\x00\x00\x00\x00\x01");
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// VisualSampleEntry, ISO/IEC 14496-12 section 12.1.3.
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
sample_entry.extend_from_slice(&[0; 16]); // pre-defined + reserved
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
sample_entry.write_u16::<BigEndian>(width)?;
sample_entry.write_u16::<BigEndian>(height)?;
sample_entry.extend_from_slice(&[
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
0x00, 0x48, 0x00, 0x00, // horizresolution
0x00, 0x48, 0x00, 0x00, // vertresolution
0x00, 0x00, 0x00, 0x00, // reserved
0x00, 0x01, // frame count
0x00, 0x00, 0x00, 0x00, // compressorname
0x00, 0x00, 0x00, 0x00, //
0x00, 0x00, 0x00, 0x00, //
0x00, 0x00, 0x00, 0x00, //
0x00, 0x00, 0x00, 0x00, //
0x00, 0x00, 0x00, 0x00, //
0x00, 0x00, 0x00, 0x00, //
0x00, 0x00, 0x00, 0x00, //
0x00, 0x18, 0xff, 0xff, // depth + pre_defined
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
]);
// AVCSampleEntry, ISO/IEC 14496-15 section 5.3.4.1.
// AVCConfigurationBox, ISO/IEC 14496-15 section 5.3.4.1.
let avcc_len_pos = sample_entry.len();
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
sample_entry.extend_from_slice(b"\x00\x00\x00\x00avcC");
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
if let Some((sps, pps)) = raw_sps_and_pps {
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// Create the AVCDecoderConfiguration, ISO/IEC 14496-15 section 5.2.4.1.
// The beginning of the AVCDecoderConfiguration takes a few values from
// the SPS (ISO/IEC 14496-10 section 7.3.2.1.1). One caveat: that section
// defines the syntax in terms of RBSP, not NAL. The difference is the
// escaping of 00 00 01 and 00 00 02; see notes about
// "emulation_prevention_three_byte" in ISO/IEC 14496-10 section 7.4.
// It looks like 00 is not a valid value of profile_idc, so this distinction
// shouldn't be relevant here. And ffmpeg seems to ignore it.
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
sample_entry.push(1); // configurationVersion
sample_entry.push(sps[1]); // profile_idc . AVCProfileIndication
sample_entry.push(sps[2]); // ...misc bits... . profile_compatibility
sample_entry.push(sps[3]); // level_idc . AVCLevelIndication
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// Hardcode lengthSizeMinusOne to 3, matching TransformSampleData's 4-byte
// lengths.
sample_entry.push(0xff);
// Only support one SPS and PPS.
// ffmpeg's ff_isom_write_avcc has the same limitation, so it's probably
// fine. This next byte is a reserved 0b111 + a 5-bit # of SPSs (1).
sample_entry.push(0xe1);
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
sample_entry.write_u16::<BigEndian>(u16::try_from(sps.len())?)?;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
sample_entry.extend_from_slice(sps);
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
sample_entry.push(1); // # of PPSs.
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
sample_entry.write_u16::<BigEndian>(u16::try_from(pps.len())?)?;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
sample_entry.extend_from_slice(pps);
} else {
sample_entry.extend_from_slice(extradata);
};
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
// Fix up avc1 and avcC box lengths.
let cur_pos = sample_entry.len();
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
BigEndian::write_u32(
&mut sample_entry[avcc_len_pos..avcc_len_pos + 4],
u32::try_from(cur_pos - avcc_len_pos)?,
);
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
// PixelAspectRatioBox, ISO/IEC 14496-12 section 12.1.4.2.
// Write a PixelAspectRatioBox if necessary, as the sub streams can be be anamorphic.
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
let pasp = sps
.vui_parameters
.as_ref()
.and_then(|v| v.aspect_ratio_info.as_ref())
.and_then(|a| a.clone().get())
.unwrap_or_else(|| default_pixel_aspect_ratio(width, height));
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
if pasp != (1, 1) {
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
sample_entry.extend_from_slice(b"\x00\x00\x00\x10pasp"); // length + box name
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
sample_entry.write_u32::<BigEndian>(pasp.0.into())?;
sample_entry.write_u32::<BigEndian>(pasp.1.into())?;
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
}
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
let cur_pos = sample_entry.len();
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
BigEndian::write_u32(
&mut sample_entry[avc1_len_pos..avc1_len_pos + 4],
u32::try_from(cur_pos - avc1_len_pos)?,
);
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
store rfc6381_codec in the database This avoids having codec-specific logic to synthesize it in db.rs. It's not too much of a problem now with only H.264 support, but it'd be a pain when supporting H.265 and other codecs.
2018-02-05 14:57:59 -05:00
let profile_idc = sample_entry[103];
let constraint_flags = sample_entry[104];
let level_idc = sample_entry[105];
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
let rfc6381_codec = format!(
"avc1.{:02x}{:02x}{:02x}",
profile_idc, constraint_flags, level_idc
);
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
Ok(ExtraData {
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
entry: db::VideoSampleEntryToInsert {
data: sample_entry,
rfc6381_codec,
width,
height,
pasp_h_spacing: pasp.0,
pasp_v_spacing: pasp.1,
},
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
need_transform,
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
})
}
}
/// Transforms sample data from Annex B format to AVC format. Should be called on samples iff
/// `ExtraData::need_transform` is true. Uses an out parameter `avc_sample` rather than a return
/// so that memory allocations can be reused from sample to sample.
replace homegrown Error with failure crate This reduces boilerplate, making it a bit easier for me to split the db stuff out into its own crate.
2018-02-21 01:46:14 -05:00
pub fn transform_sample_data(annexb_sample: &[u8], avc_sample: &mut Vec<u8>) -> Result<(), Error> {
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
// See AVCParameterSamples, ISO/IEC 14496-15 section 5.3.2.
avc_sample.clear();
// The output will be about as long as the input. Annex B stop codes require at least three
// bytes; many seem to be four. The output lengths are exactly four.
avc_sample.reserve(annexb_sample.len() + 4);
decode_h264_annex_b(annexb_sample, |unit| {
// 4-byte length; this must match ParseExtraData's lengthSizeMinusOne == 3.
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
avc_sample.write_u32::<BigEndian>(unit.len() as u32)?; // length
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
avc_sample.extend_from_slice(unit);
Ok(())
})?;
Ok(())
}
#[cfg(test)]
mod tests {
lose "extern crate" everywhere (Rust 2018 edition)
2018-12-28 22:53:29 -05:00
use db::testutil;
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
#[rustfmt::skip]
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
const ANNEX_B_TEST_INPUT: [u8; 35] = [
0x00, 0x00, 0x00, 0x01, 0x67, 0x4d, 0x00, 0x1f,
0x9a, 0x66, 0x02, 0x80, 0x2d, 0xff, 0x35, 0x01,
0x01, 0x01, 0x40, 0x00, 0x00, 0xfa, 0x00, 0x00,
0x1d, 0x4c, 0x01, 0x00, 0x00, 0x00, 0x01, 0x68,
0xee, 0x3c, 0x80,
];
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
#[rustfmt::skip]
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
const AVC_DECODER_CONFIG_TEST_INPUT: [u8; 38] = [
0x01, 0x4d, 0x00, 0x1f, 0xff, 0xe1, 0x00, 0x17,
0x67, 0x4d, 0x00, 0x1f, 0x9a, 0x66, 0x02, 0x80,
0x2d, 0xff, 0x35, 0x01, 0x01, 0x01, 0x40, 0x00,
0x00, 0xfa, 0x00, 0x00, 0x1d, 0x4c, 0x01, 0x01,
0x00, 0x04, 0x68, 0xee, 0x3c, 0x80,
];
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
#[rustfmt::skip]
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
const TEST_OUTPUT: [u8; 132] = [
0x00, 0x00, 0x00, 0x84, 0x61, 0x76, 0x63, 0x31,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x05, 0x00, 0x02, 0xd0, 0x00, 0x48, 0x00, 0x00,
0x00, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x18, 0xff, 0xff, 0x00, 0x00,
0x00, 0x2e, 0x61, 0x76, 0x63, 0x43, 0x01, 0x4d,
0x00, 0x1f, 0xff, 0xe1, 0x00, 0x17, 0x67, 0x4d,
0x00, 0x1f, 0x9a, 0x66, 0x02, 0x80, 0x2d, 0xff,
0x35, 0x01, 0x01, 0x01, 0x40, 0x00, 0x00, 0xfa,
0x00, 0x00, 0x1d, 0x4c, 0x01, 0x01, 0x00, 0x04,
0x68, 0xee, 0x3c, 0x80,
];
#[test]
fn test_decode() {
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
testutil::init();
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
let data = &ANNEX_B_TEST_INPUT;
let mut pieces = Vec::new();
super::decode_h264_annex_b(data, |p| {
pieces.push(p);
Ok(())
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
})
.unwrap();
assert_eq!(&pieces, &[&data[4..27], &data[31..]]);
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
}
#[test]
fn test_sample_entry_from_avc_decoder_config() {
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
testutil::init();
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
let e = super::ExtraData::parse(&AVC_DECODER_CONFIG_TEST_INPUT, 1280, 720).unwrap();
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
assert_eq!(&e.entry.data[..], &TEST_OUTPUT[..]);
assert_eq!(e.entry.width, 1280);
assert_eq!(e.entry.height, 720);
assert_eq!(e.entry.rfc6381_codec, "avc1.4d001f");
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
assert_eq!(e.need_transform, false);
}
#[test]
fn test_sample_entry_from_annex_b() {
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
testutil::init();
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
let e = super::ExtraData::parse(&ANNEX_B_TEST_INPUT, 1280, 720).unwrap();
schema version 6 with pixel aspect ratio This makes anamorphic sub streams display correctly, even ones from old Hikvision cameras that don't properly set the aspect ratio at the H.264 layer.
2020-03-20 00:35:42 -04:00
assert_eq!(e.entry.width, 1280);
assert_eq!(e.entry.height, 720);
assert_eq!(e.entry.rfc6381_codec, "avc1.4d001f");
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
assert_eq!(e.need_transform, true);
}
#[test]
fn test_transform_sample_data() {
serve 'video/mp4; codecs="avc1.xxxxxx"' mime type This can be used when constructing a HTML5 SourceBuffer.
2017-10-04 02:25:58 -04:00
testutil::init();
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
#[rustfmt::skip]
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
const INPUT: [u8; 64] = [
0x00, 0x00, 0x00, 0x01, 0x67, 0x4d, 0x00, 0x1f,
0x9a, 0x66, 0x02, 0x80, 0x2d, 0xff, 0x35, 0x01,
0x01, 0x01, 0x40, 0x00, 0x00, 0xfa, 0x00, 0x00,
0x1d, 0x4c, 0x01,
0x00, 0x00, 0x00, 0x01, 0x68, 0xee, 0x3c, 0x80,
0x00, 0x00, 0x00, 0x01, 0x06, 0x06, 0x01, 0xc4,
0x80,
0x00, 0x00, 0x00, 0x01, 0x65, 0x88, 0x80, 0x10,
0x00, 0x08, 0x7f, 0x00, 0x5d, 0x27, 0xb5, 0xc1,
0xff, 0x8c, 0xd6, 0x35,
// (truncated)
];
rustfmt everything I want to make the project more accessible by not expecting folks to match my idiosyncratic style. Now almost [1] everything is written in the "standard" style. CI enforces this. [1] "Almost": I used #[rustfmt::skip] in a few sections where I felt aligning things in columns significantly improves readability.
2021-02-17 01:15:54 -05:00
#[rustfmt::skip]
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
const EXPECTED_OUTPUT: [u8; 64] = [
0x00, 0x00, 0x00, 0x17, 0x67, 0x4d, 0x00, 0x1f,
0x9a, 0x66, 0x02, 0x80, 0x2d, 0xff, 0x35, 0x01,
0x01, 0x01, 0x40, 0x00, 0x00, 0xfa, 0x00, 0x00,
0x1d, 0x4c, 0x01,
0x00, 0x00, 0x00, 0x04, 0x68, 0xee, 0x3c, 0x80,
0x00, 0x00, 0x00, 0x05, 0x06, 0x06, 0x01, 0xc4,
0x80,
0x00, 0x00, 0x00, 0x10, 0x65, 0x88, 0x80, 0x10,
0x00, 0x08, 0x7f, 0x00, 0x5d, 0x27, 0xb5, 0xc1,
0xff, 0x8c, 0xd6, 0x35,
];
let mut out = Vec::new();
super::transform_sample_data(&INPUT, &mut out).unwrap();
assert_eq!(&out[..], &EXPECTED_OUTPUT[..]);
}
more anamorphic streams * my dad's GW4089IP cameras use 720x480 * some Reolink cameras use 640x352 * I'm playing with rotated cameras (16x9 -> 9x16) I'd prefer to calculate pasp from a configured camera aspect ratio than to hardcode the assumption these are 16x9, but that requires a schema change. This is an improvement for now.
2021-05-22 17:43:58 -04:00
#[test]
fn pixel_aspect_ratios() {
use super::default_pixel_aspect_ratio;
use num_rational::Ratio;
for &((w, h), _) in &super::PIXEL_ASPECT_RATIOS {
let (h_spacing, v_spacing) = default_pixel_aspect_ratio(w, h);
assert_eq!(Ratio::new(w * h_spacing, h * v_spacing), Ratio::new(16, 9));
// 90 or 270 degree rotation.
let (h_spacing, v_spacing) = default_pixel_aspect_ratio(h, w);
assert_eq!(Ratio::new(h * h_spacing, w * v_spacing), Ratio::new(9, 16));
}
}
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 17:34:00 -05:00
}
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