2017-09-21 00:06:06 -04:00
|
|
|
// This file is part of Moonfire NVR, a security camera digital video recorder.
|
|
|
|
// Copyright (C) 2017 Scott Lamb <slamb@slamb.org>
|
|
|
|
//
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
|
|
// it under the terms of the GNU General Public License as published by
|
|
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
|
|
// (at your option) any later version.
|
|
|
|
//
|
|
|
|
// In addition, as a special exception, the copyright holders give
|
|
|
|
// permission to link the code of portions of this program with the
|
|
|
|
// OpenSSL library under certain conditions as described in each
|
|
|
|
// individual source file, and distribute linked combinations including
|
|
|
|
// the two.
|
|
|
|
//
|
|
|
|
// You must obey the GNU General Public License in all respects for all
|
|
|
|
// of the code used other than OpenSSL. If you modify file(s) with this
|
|
|
|
// exception, you may extend this exception to your version of the
|
|
|
|
// file(s), but you are not obligated to do so. If you do not wish to do
|
|
|
|
// so, delete this exception statement from your version. If you delete
|
|
|
|
// this exception statement from all source files in the program, then
|
|
|
|
// also delete it here.
|
|
|
|
//
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
// GNU General Public License for more details.
|
|
|
|
//
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
|
|
extern crate libc;
|
|
|
|
#[macro_use] extern crate log;
|
|
|
|
|
|
|
|
use std::cell::{Ref, RefCell};
|
|
|
|
use std::ffi::CStr;
|
2017-10-24 10:26:18 -04:00
|
|
|
use std::fmt::{self, Write};
|
2017-09-21 00:06:06 -04:00
|
|
|
use std::ptr;
|
|
|
|
use std::sync;
|
|
|
|
|
|
|
|
static START: sync::Once = sync::ONCE_INIT;
|
|
|
|
|
|
|
|
//#[link(name = "avcodec")]
|
|
|
|
extern "C" {
|
|
|
|
fn avcodec_version() -> libc::c_int;
|
|
|
|
fn av_init_packet(p: *mut AVPacket);
|
|
|
|
fn av_packet_unref(p: *mut AVPacket);
|
|
|
|
|
|
|
|
fn moonfire_ffmpeg_cctx_codec_id(ctx: *const AVCodecContext) -> libc::c_int;
|
|
|
|
fn moonfire_ffmpeg_cctx_codec_type(ctx: *const AVCodecContext) -> libc::c_int;
|
|
|
|
fn moonfire_ffmpeg_cctx_extradata(ctx: *const AVCodecContext) -> DataLen;
|
|
|
|
fn moonfire_ffmpeg_cctx_height(ctx: *const AVCodecContext) -> libc::c_int;
|
|
|
|
fn moonfire_ffmpeg_cctx_width(ctx: *const AVCodecContext) -> libc::c_int;
|
|
|
|
}
|
|
|
|
|
|
|
|
//#[link(name = "avformat")]
|
|
|
|
extern "C" {
|
|
|
|
fn avformat_version() -> libc::c_int;
|
|
|
|
|
|
|
|
fn avformat_open_input(ctx: *mut *mut AVFormatContext, url: *const libc::c_char,
|
|
|
|
fmt: *const AVInputFormat, options: *mut *mut AVDictionary)
|
|
|
|
-> libc::c_int;
|
|
|
|
fn avformat_close_input(ctx: *mut *mut AVFormatContext);
|
|
|
|
fn avformat_find_stream_info(ctx: *mut AVFormatContext, options: *mut *mut AVDictionary)
|
|
|
|
-> libc::c_int;
|
|
|
|
fn av_read_frame(ctx: *mut AVFormatContext, p: *mut AVPacket) -> libc::c_int;
|
|
|
|
fn av_register_all();
|
|
|
|
fn avformat_network_init() -> libc::c_int;
|
|
|
|
|
|
|
|
fn moonfire_ffmpeg_fctx_streams(ctx: *const AVFormatContext) -> StreamsLen;
|
|
|
|
|
|
|
|
fn moonfire_ffmpeg_stream_codec(stream: *const AVStream) -> *const AVCodecContext;
|
|
|
|
fn moonfire_ffmpeg_stream_time_base(stream: *const AVStream) -> AVRational;
|
|
|
|
}
|
|
|
|
|
|
|
|
//#[link(name = "avutil")]
|
|
|
|
extern "C" {
|
|
|
|
fn avutil_version() -> libc::c_int;
|
fix moonfire_ffmpeg::Error formatting
This would return a string with trailing nuls up to the buffer size (64
bytes) which would cause problems later. One in particular: in
"moonfire-nvr config", if testing a camera failed, displaying the error would
panic with the backtrace below.
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: NulError(33, [69, 114, 114, 111, 114, 58, 32, 102, 102, 109, 112, 101, 103, 58, 32, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 32, 114, 101, 102, 117, 115, 101, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])', src/libcore/result.rs:860:4
stack backtrace:
0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace
1: std::panicking::default_hook::{{closure}}
2: std::panicking::default_hook
3: std::panicking::rust_panic_with_hook
4: std::panicking::begin_panic_new
5: std::panicking::begin_panic_fmt
6: rust_begin_unwind
7: core::panicking::panic_fmt
8: core::result::unwrap_failed
9: <core::result::Result<T, E>>::unwrap
10: <&'a str as ncurses::ToCStr>::to_c_str
11: ncurses::addstr
12: ncurses::mvaddstr
13: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::print_at
14: cursive::printer::Printer::print
15: <cursive::views::text_view::TextView as cursive::view::View>::draw::{{closure}}
16: cursive::view::scroll::ScrollBase::draw
17: <cursive::views::text_view::TextView as cursive::view::View>::draw
18: <cursive::views::dialog::Dialog as cursive::view::View>::draw
19: <cursive::views::layer::Layer<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
20: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
21: <cursive::views::shadow_view::ShadowView<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
22: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
23: <cursive::views::stack_view::StackView as cursive::view::View>::draw::{{closure}}
24: cursive::printer::Printer::with_color::{{closure}}
25: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::with_color
26: cursive::printer::Printer::with_color
27: <cursive::views::stack_view::StackView as cursive::view::View>::draw
28: cursive::Cursive::draw
29: cursive::Cursive::step
30: cursive::Cursive::run
31: moonfire_nvr::cmds::config::run
32: moonfire_nvr::cmds::Command::run
33: moonfire_nvr::main
34: __rust_maybe_catch_panic
35: std::rt::lang_start
36: main
2017-09-22 09:47:08 -04:00
|
|
|
fn av_strerror(e: libc::c_int, b: *mut libc::c_char, s: libc::size_t) -> libc::c_int;
|
2017-09-21 00:06:06 -04:00
|
|
|
fn av_dict_count(d: *const AVDictionary) -> libc::c_int;
|
|
|
|
fn av_dict_get(d: *const AVDictionary, key: *const libc::c_char, prev: *mut AVDictionaryEntry,
|
|
|
|
flags: libc::c_int) -> *mut AVDictionaryEntry;
|
|
|
|
fn av_dict_set(d: *mut *mut AVDictionary, key: *const libc::c_char, value: *const libc::c_char,
|
|
|
|
flags: libc::c_int) -> libc::c_int;
|
|
|
|
fn av_dict_free(d: *mut *mut AVDictionary);
|
|
|
|
}
|
|
|
|
|
|
|
|
//#[link(name = "wrapper")]
|
|
|
|
extern "C" {
|
|
|
|
static moonfire_ffmpeg_compiled_libavcodec_version: libc::c_int;
|
|
|
|
static moonfire_ffmpeg_compiled_libavformat_version: libc::c_int;
|
|
|
|
static moonfire_ffmpeg_compiled_libavutil_version: libc::c_int;
|
|
|
|
static moonfire_ffmpeg_av_dict_ignore_suffix: libc::c_int;
|
|
|
|
static moonfire_ffmpeg_av_nopts_value: libc::int64_t;
|
|
|
|
|
|
|
|
static moonfire_ffmpeg_av_codec_id_h264: libc::c_int;
|
|
|
|
static moonfire_ffmpeg_avmedia_type_video: libc::c_int;
|
|
|
|
|
|
|
|
static moonfire_ffmpeg_averror_eof: libc::c_int;
|
|
|
|
|
|
|
|
fn moonfire_ffmpeg_init();
|
|
|
|
|
|
|
|
fn moonfire_ffmpeg_packet_alloc() -> *mut AVPacket;
|
|
|
|
fn moonfire_ffmpeg_packet_free(p: *mut AVPacket);
|
|
|
|
fn moonfire_ffmpeg_packet_is_key(p: *const AVPacket) -> bool;
|
|
|
|
fn moonfire_ffmpeg_packet_pts(p: *const AVPacket) -> libc::int64_t;
|
|
|
|
fn moonfire_ffmpeg_packet_dts(p: *const AVPacket) -> libc::int64_t;
|
|
|
|
fn moonfire_ffmpeg_packet_duration(p: *const AVPacket) -> libc::c_int;
|
|
|
|
fn moonfire_ffmpeg_packet_set_pts(p: *mut AVPacket, pts: libc::int64_t);
|
|
|
|
fn moonfire_ffmpeg_packet_set_dts(p: *mut AVPacket, dts: libc::int64_t);
|
|
|
|
fn moonfire_ffmpeg_packet_set_duration(p: *mut AVPacket, dur: libc::c_int);
|
|
|
|
fn moonfire_ffmpeg_packet_data(p: *const AVPacket) -> DataLen;
|
|
|
|
fn moonfire_ffmpeg_packet_stream_index(p: *const AVPacket) -> libc::c_uint;
|
|
|
|
}
|
|
|
|
|
|
|
|
pub struct Ffmpeg {}
|
|
|
|
|
|
|
|
// No accessors here; seems reasonable to assume ABI stability of this simple struct.
|
|
|
|
#[repr(C)]
|
|
|
|
struct AVDictionaryEntry {
|
|
|
|
key: *mut libc::c_char,
|
|
|
|
value: *mut libc::c_char,
|
|
|
|
}
|
|
|
|
|
|
|
|
// Likewise, seems reasonable to assume this struct has a stable ABI.
|
|
|
|
#[repr(C)]
|
|
|
|
pub struct AVRational {
|
|
|
|
pub num: libc::c_int,
|
|
|
|
pub den: libc::c_int,
|
|
|
|
}
|
|
|
|
|
|
|
|
// No ABI stability assumption here; use heap allocation/deallocation and accessors only.
|
|
|
|
enum AVCodecContext {}
|
|
|
|
enum AVDictionary {}
|
|
|
|
enum AVFormatContext {}
|
|
|
|
enum AVInputFormat {}
|
|
|
|
enum AVPacket {}
|
|
|
|
enum AVStream {}
|
|
|
|
|
|
|
|
pub struct InputFormatContext {
|
|
|
|
ctx: *mut AVFormatContext,
|
|
|
|
pkt: RefCell<*mut AVPacket>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl InputFormatContext {
|
|
|
|
pub fn open(source: &CStr, dict: &mut Dictionary) -> Result<InputFormatContext, Error> {
|
|
|
|
let mut ctx = ptr::null_mut();
|
|
|
|
Error::wrap(unsafe {
|
|
|
|
avformat_open_input(&mut ctx, source.as_ptr(), ptr::null(), &mut dict.0)
|
|
|
|
})?;
|
|
|
|
let pkt = unsafe { moonfire_ffmpeg_packet_alloc() };
|
|
|
|
if pkt.is_null() {
|
|
|
|
panic!("malloc failed");
|
|
|
|
}
|
|
|
|
unsafe { av_init_packet(pkt) };
|
|
|
|
Ok(InputFormatContext{
|
|
|
|
ctx,
|
|
|
|
pkt: RefCell::new(pkt),
|
|
|
|
})
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn find_stream_info(&mut self) -> Result<(), Error> {
|
|
|
|
Error::wrap(unsafe { avformat_find_stream_info(self.ctx, ptr::null_mut()) })
|
|
|
|
}
|
|
|
|
|
|
|
|
// XXX: non-mut because of lexical lifetime woes in the caller. This is also why we need a
|
|
|
|
// RefCell.
|
|
|
|
pub fn read_frame<'i>(&'i self) -> Result<Packet<'i>, Error> {
|
|
|
|
let pkt = self.pkt.borrow();
|
|
|
|
Error::wrap(unsafe { av_read_frame(self.ctx, *pkt) })?;
|
2017-11-30 17:40:31 -05:00
|
|
|
Ok(Packet(pkt))
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
pub fn streams<'i>(&'i self) -> Streams<'i> {
|
2017-11-30 17:40:31 -05:00
|
|
|
Streams(unsafe {
|
|
|
|
let s = moonfire_ffmpeg_fctx_streams(self.ctx);
|
|
|
|
std::slice::from_raw_parts(s.streams, s.len as usize)
|
|
|
|
})
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
unsafe impl Send for InputFormatContext {}
|
|
|
|
|
|
|
|
impl Drop for InputFormatContext {
|
|
|
|
fn drop(&mut self) {
|
|
|
|
unsafe {
|
|
|
|
moonfire_ffmpeg_packet_free(*self.pkt.borrow());
|
|
|
|
avformat_close_input(&mut self.ctx);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// matches moonfire_ffmpeg_data_len
|
|
|
|
#[repr(C)]
|
|
|
|
struct DataLen {
|
|
|
|
data: *const u8,
|
|
|
|
len: libc::size_t,
|
|
|
|
}
|
|
|
|
|
|
|
|
// matches moonfire_ffmpeg_streams_len
|
|
|
|
#[repr(C)]
|
|
|
|
struct StreamsLen {
|
|
|
|
streams: *const *const AVStream,
|
|
|
|
len: libc::size_t,
|
|
|
|
}
|
|
|
|
|
2017-11-30 17:40:31 -05:00
|
|
|
pub struct Packet<'i>(Ref<'i, *mut AVPacket>);
|
2017-09-21 00:06:06 -04:00
|
|
|
|
|
|
|
impl<'i> Packet<'i> {
|
2017-11-30 17:40:31 -05:00
|
|
|
pub fn is_key(&self) -> bool { unsafe { moonfire_ffmpeg_packet_is_key(*self.0) } }
|
2017-09-21 00:06:06 -04:00
|
|
|
pub fn pts(&self) -> Option<i64> {
|
2017-11-30 17:40:31 -05:00
|
|
|
match unsafe { moonfire_ffmpeg_packet_pts(*self.0) } {
|
2017-09-21 00:06:06 -04:00
|
|
|
v if v == unsafe { moonfire_ffmpeg_av_nopts_value } => None,
|
|
|
|
v => Some(v),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
pub fn set_pts(&mut self, pts: Option<i64>) {
|
|
|
|
let real_pts = match pts {
|
|
|
|
None => unsafe { moonfire_ffmpeg_av_nopts_value },
|
|
|
|
Some(v) => v,
|
|
|
|
};
|
2017-11-30 17:40:31 -05:00
|
|
|
unsafe { moonfire_ffmpeg_packet_set_pts(*self.0, real_pts); }
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
2017-11-30 17:40:31 -05:00
|
|
|
pub fn dts(&self) -> i64 { unsafe { moonfire_ffmpeg_packet_dts(*self.0) } }
|
2017-09-21 00:06:06 -04:00
|
|
|
pub fn set_dts(&mut self, dts: i64) {
|
2017-11-30 17:40:31 -05:00
|
|
|
unsafe { moonfire_ffmpeg_packet_set_dts(*self.0, dts); }
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
2017-11-30 17:40:31 -05:00
|
|
|
pub fn duration(&self) -> i32 { unsafe { moonfire_ffmpeg_packet_duration(*self.0) } }
|
2017-09-21 00:06:06 -04:00
|
|
|
pub fn set_duration(&mut self, dur: i32) {
|
2017-11-30 17:40:31 -05:00
|
|
|
unsafe { moonfire_ffmpeg_packet_set_duration(*self.0, dur) }
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
pub fn stream_index(&self) -> usize {
|
2017-11-30 17:40:31 -05:00
|
|
|
unsafe { moonfire_ffmpeg_packet_stream_index(*self.0) as usize }
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
pub fn data(&self) -> Option<&[u8]> {
|
|
|
|
unsafe {
|
2017-11-30 17:40:31 -05:00
|
|
|
let d = moonfire_ffmpeg_packet_data(*self.0);
|
2017-09-21 00:06:06 -04:00
|
|
|
if d.data.is_null() {
|
|
|
|
None
|
|
|
|
} else {
|
|
|
|
Some(::std::slice::from_raw_parts(d.data, d.len))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<'i> Drop for Packet<'i> {
|
|
|
|
fn drop(&mut self) {
|
|
|
|
unsafe {
|
2017-11-30 17:40:31 -05:00
|
|
|
av_packet_unref(*self.0);
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-11-30 17:40:31 -05:00
|
|
|
pub struct Streams<'owner>(&'owner [*const AVStream]);
|
2017-09-21 00:06:06 -04:00
|
|
|
|
|
|
|
impl<'owner> Streams<'owner> {
|
2017-11-30 17:40:31 -05:00
|
|
|
pub fn get(&self, i: usize) -> Stream<'owner> { Stream(unsafe { self.0[i].as_ref() }.unwrap()) }
|
|
|
|
pub fn len(&self) -> usize { self.0.len() }
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
|
2017-11-30 17:40:31 -05:00
|
|
|
pub struct Stream<'o>(&'o AVStream);
|
2017-09-21 00:06:06 -04:00
|
|
|
|
|
|
|
impl<'o> Stream<'o> {
|
|
|
|
pub fn codec<'s>(&'s self) -> CodecContext<'s> {
|
2017-11-30 17:40:31 -05:00
|
|
|
CodecContext(unsafe { moonfire_ffmpeg_stream_codec(self.0).as_ref() }.unwrap())
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
pub fn time_base(&self) -> AVRational {
|
2017-11-30 17:40:31 -05:00
|
|
|
unsafe { moonfire_ffmpeg_stream_time_base(self.0) }
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-11-30 17:40:31 -05:00
|
|
|
pub struct CodecContext<'s>(&'s AVCodecContext);
|
2017-09-21 00:06:06 -04:00
|
|
|
|
|
|
|
impl<'s> CodecContext<'s> {
|
|
|
|
pub fn extradata(&self) -> &[u8] {
|
|
|
|
unsafe {
|
2017-11-30 17:40:31 -05:00
|
|
|
let d = moonfire_ffmpeg_cctx_extradata(self.0);
|
2017-09-21 00:06:06 -04:00
|
|
|
::std::slice::from_raw_parts(d.data, d.len)
|
|
|
|
}
|
|
|
|
}
|
2017-11-30 17:40:31 -05:00
|
|
|
pub fn width(&self) -> libc::c_int { unsafe { moonfire_ffmpeg_cctx_width(self.0) } }
|
|
|
|
pub fn height(&self) -> libc::c_int { unsafe { moonfire_ffmpeg_cctx_height(self.0) } }
|
2017-09-21 00:06:06 -04:00
|
|
|
pub fn codec_id(&self) -> CodecId {
|
2017-11-30 17:40:31 -05:00
|
|
|
CodecId(unsafe { moonfire_ffmpeg_cctx_codec_id(self.0) })
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
pub fn codec_type(&self) -> MediaType {
|
2017-11-30 17:40:31 -05:00
|
|
|
MediaType(unsafe { moonfire_ffmpeg_cctx_codec_type(self.0) })
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Copy, Clone, Debug)]
|
|
|
|
pub struct CodecId(libc::c_int);
|
|
|
|
|
|
|
|
impl CodecId {
|
|
|
|
pub fn is_h264(self) -> bool { self.0 == unsafe { moonfire_ffmpeg_av_codec_id_h264 } }
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Copy, Clone, Debug)]
|
|
|
|
pub struct MediaType(libc::c_int);
|
|
|
|
|
|
|
|
impl MediaType {
|
|
|
|
pub fn is_video(self) -> bool { self.0 == unsafe { moonfire_ffmpeg_avmedia_type_video } }
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Copy, Clone, Debug)]
|
|
|
|
pub struct Error(libc::c_int);
|
|
|
|
|
|
|
|
impl Error {
|
|
|
|
pub fn eof() -> Self { Error(unsafe { moonfire_ffmpeg_averror_eof }) }
|
|
|
|
|
|
|
|
fn wrap(raw: libc::c_int) -> Result<(), Error> {
|
|
|
|
match raw {
|
|
|
|
0 => Ok(()),
|
|
|
|
r => Err(Error(r)),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn is_eof(self) -> bool { return self.0 == unsafe { moonfire_ffmpeg_averror_eof } }
|
|
|
|
}
|
|
|
|
|
|
|
|
impl std::error::Error for Error {
|
|
|
|
fn description(&self) -> &str {
|
|
|
|
// TODO: pull out some common cases.
|
|
|
|
"ffmpeg error"
|
|
|
|
}
|
|
|
|
|
|
|
|
fn cause(&self) -> Option<&std::error::Error> { None }
|
|
|
|
}
|
|
|
|
|
|
|
|
impl fmt::Display for Error {
|
|
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
|
|
const ARRAYLEN: usize = 64;
|
fix moonfire_ffmpeg::Error formatting
This would return a string with trailing nuls up to the buffer size (64
bytes) which would cause problems later. One in particular: in
"moonfire-nvr config", if testing a camera failed, displaying the error would
panic with the backtrace below.
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: NulError(33, [69, 114, 114, 111, 114, 58, 32, 102, 102, 109, 112, 101, 103, 58, 32, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 32, 114, 101, 102, 117, 115, 101, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])', src/libcore/result.rs:860:4
stack backtrace:
0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace
1: std::panicking::default_hook::{{closure}}
2: std::panicking::default_hook
3: std::panicking::rust_panic_with_hook
4: std::panicking::begin_panic_new
5: std::panicking::begin_panic_fmt
6: rust_begin_unwind
7: core::panicking::panic_fmt
8: core::result::unwrap_failed
9: <core::result::Result<T, E>>::unwrap
10: <&'a str as ncurses::ToCStr>::to_c_str
11: ncurses::addstr
12: ncurses::mvaddstr
13: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::print_at
14: cursive::printer::Printer::print
15: <cursive::views::text_view::TextView as cursive::view::View>::draw::{{closure}}
16: cursive::view::scroll::ScrollBase::draw
17: <cursive::views::text_view::TextView as cursive::view::View>::draw
18: <cursive::views::dialog::Dialog as cursive::view::View>::draw
19: <cursive::views::layer::Layer<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
20: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
21: <cursive::views::shadow_view::ShadowView<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
22: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
23: <cursive::views::stack_view::StackView as cursive::view::View>::draw::{{closure}}
24: cursive::printer::Printer::with_color::{{closure}}
25: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::with_color
26: cursive::printer::Printer::with_color
27: <cursive::views::stack_view::StackView as cursive::view::View>::draw
28: cursive::Cursive::draw
29: cursive::Cursive::step
30: cursive::Cursive::run
31: moonfire_nvr::cmds::config::run
32: moonfire_nvr::cmds::Command::run
33: moonfire_nvr::main
34: __rust_maybe_catch_panic
35: std::rt::lang_start
36: main
2017-09-22 09:47:08 -04:00
|
|
|
let mut buf = [0; ARRAYLEN];
|
|
|
|
let s = unsafe {
|
|
|
|
// Note av_strerror uses strlcpy, so it guarantees a trailing NUL byte.
|
|
|
|
av_strerror(self.0, buf.as_mut_ptr(), ARRAYLEN);
|
|
|
|
CStr::from_ptr(buf.as_ptr())
|
|
|
|
};
|
|
|
|
f.write_str(&s.to_string_lossy())
|
2017-09-21 00:06:06 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-10-24 10:26:18 -04:00
|
|
|
#[derive(Copy, Clone)]
|
2017-09-21 00:06:06 -04:00
|
|
|
struct Version(libc::c_int);
|
|
|
|
|
2017-10-24 10:26:18 -04:00
|
|
|
impl Version {
|
|
|
|
fn major(self) -> libc::c_int { (self.0 >> 16) & 0xFF }
|
|
|
|
fn minor(self) -> libc::c_int { (self.0 >> 8) & 0xFF }
|
|
|
|
}
|
|
|
|
|
2017-09-21 00:06:06 -04:00
|
|
|
impl fmt::Display for Version {
|
|
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
|
|
write!(f, "{}.{}.{}", (self.0 >> 16) & 0xFF, (self.0 >> 8) & 0xFF, self.0 & 0xFF)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-10-24 10:26:18 -04:00
|
|
|
struct Library {
|
|
|
|
name: &'static str,
|
|
|
|
compiled: Version,
|
|
|
|
running: Version,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Library {
|
|
|
|
fn new(name: &'static str, compiled: libc::c_int, running: libc::c_int) -> Self {
|
|
|
|
Library {
|
|
|
|
name,
|
|
|
|
compiled: Version(compiled),
|
|
|
|
running: Version(running),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn is_compatible(&self) -> bool {
|
|
|
|
self.running.major() == self.compiled.major() &&
|
|
|
|
self.running.minor() >= self.compiled.minor()
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl fmt::Display for Library {
|
|
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
|
|
write!(f, "{}: running={} compiled={}", self.name, self.running, self.compiled)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-09-21 00:06:06 -04:00
|
|
|
pub struct Dictionary(*mut AVDictionary);
|
|
|
|
|
|
|
|
impl Dictionary {
|
|
|
|
pub fn new() -> Dictionary { Dictionary(ptr::null_mut()) }
|
|
|
|
pub fn size(&self) -> usize { (unsafe { av_dict_count(self.0) }) as usize }
|
|
|
|
pub fn empty(&self) -> bool { self.size() == 0 }
|
|
|
|
pub fn set(&mut self, key: &CStr, value: &CStr) -> Result<(), Error> {
|
|
|
|
Error::wrap(unsafe { av_dict_set(&mut self.0, key.as_ptr(), value.as_ptr(), 0) })
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl fmt::Display for Dictionary {
|
|
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
|
|
let mut ent = ptr::null_mut();
|
|
|
|
let mut first = true;
|
|
|
|
loop {
|
|
|
|
unsafe {
|
|
|
|
let c = 0;
|
|
|
|
ent = av_dict_get(self.0, &c, ent, moonfire_ffmpeg_av_dict_ignore_suffix);
|
|
|
|
if ent.is_null() {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if first {
|
|
|
|
first = false;
|
|
|
|
} else {
|
|
|
|
write!(f, ", ")?;
|
|
|
|
}
|
|
|
|
write!(f, "{}={}", CStr::from_ptr((*ent).key).to_string_lossy(),
|
|
|
|
CStr::from_ptr((*ent).value).to_string_lossy())?;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Drop for Dictionary {
|
|
|
|
fn drop(&mut self) { unsafe { av_dict_free(&mut self.0) } }
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Ffmpeg {
|
|
|
|
pub fn new() -> Ffmpeg {
|
|
|
|
START.call_once(|| unsafe {
|
2017-10-24 10:26:18 -04:00
|
|
|
let libs = &[
|
|
|
|
Library::new("avutil", moonfire_ffmpeg_compiled_libavutil_version,
|
|
|
|
avutil_version()),
|
|
|
|
Library::new("avcodec", moonfire_ffmpeg_compiled_libavcodec_version,
|
|
|
|
avcodec_version()),
|
|
|
|
Library::new("avformat", moonfire_ffmpeg_compiled_libavformat_version,
|
|
|
|
avformat_version()),
|
|
|
|
];
|
|
|
|
let mut msg = String::new();
|
|
|
|
let mut compatible = true;
|
|
|
|
for l in libs {
|
|
|
|
write!(&mut msg, "\n{}", l).unwrap();
|
|
|
|
if !l.is_compatible() {
|
|
|
|
compatible = false;
|
|
|
|
msg.push_str(" <- not ABI-compatible!");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if !compatible {
|
|
|
|
panic!("Incompatible ffmpeg versions:{}", msg);
|
|
|
|
}
|
2017-09-21 00:06:06 -04:00
|
|
|
moonfire_ffmpeg_init();
|
|
|
|
av_register_all();
|
|
|
|
if avformat_network_init() < 0 {
|
|
|
|
panic!("avformat_network_init failed");
|
|
|
|
}
|
2017-10-24 10:26:18 -04:00
|
|
|
info!("Initialized ffmpeg. Versions:{}", msg);
|
2017-09-21 00:06:06 -04:00
|
|
|
});
|
|
|
|
Ffmpeg{}
|
|
|
|
}
|
|
|
|
}
|
fix moonfire_ffmpeg::Error formatting
This would return a string with trailing nuls up to the buffer size (64
bytes) which would cause problems later. One in particular: in
"moonfire-nvr config", if testing a camera failed, displaying the error would
panic with the backtrace below.
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: NulError(33, [69, 114, 114, 111, 114, 58, 32, 102, 102, 109, 112, 101, 103, 58, 32, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 32, 114, 101, 102, 117, 115, 101, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])', src/libcore/result.rs:860:4
stack backtrace:
0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace
1: std::panicking::default_hook::{{closure}}
2: std::panicking::default_hook
3: std::panicking::rust_panic_with_hook
4: std::panicking::begin_panic_new
5: std::panicking::begin_panic_fmt
6: rust_begin_unwind
7: core::panicking::panic_fmt
8: core::result::unwrap_failed
9: <core::result::Result<T, E>>::unwrap
10: <&'a str as ncurses::ToCStr>::to_c_str
11: ncurses::addstr
12: ncurses::mvaddstr
13: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::print_at
14: cursive::printer::Printer::print
15: <cursive::views::text_view::TextView as cursive::view::View>::draw::{{closure}}
16: cursive::view::scroll::ScrollBase::draw
17: <cursive::views::text_view::TextView as cursive::view::View>::draw
18: <cursive::views::dialog::Dialog as cursive::view::View>::draw
19: <cursive::views::layer::Layer<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
20: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
21: <cursive::views::shadow_view::ShadowView<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
22: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
23: <cursive::views::stack_view::StackView as cursive::view::View>::draw::{{closure}}
24: cursive::printer::Printer::with_color::{{closure}}
25: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::with_color
26: cursive::printer::Printer::with_color
27: <cursive::views::stack_view::StackView as cursive::view::View>::draw
28: cursive::Cursive::draw
29: cursive::Cursive::step
30: cursive::Cursive::run
31: moonfire_nvr::cmds::config::run
32: moonfire_nvr::cmds::Command::run
33: moonfire_nvr::main
34: __rust_maybe_catch_panic
35: std::rt::lang_start
36: main
2017-09-22 09:47:08 -04:00
|
|
|
|
|
|
|
#[cfg(test)]
|
|
|
|
mod tests {
|
|
|
|
use std::ffi::CString;
|
|
|
|
use super::Error;
|
|
|
|
|
2017-10-24 10:26:18 -04:00
|
|
|
/// Just tests that this doesn't crash with an ABI compatibility error.
|
|
|
|
#[test]
|
|
|
|
fn test_init() { super::Ffmpeg::new(); }
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_is_compatible() {
|
|
|
|
// compiled major/minor/patch, running major/minor/patch, expected compatible
|
|
|
|
use ::libc::c_int;
|
|
|
|
struct Test(c_int, c_int, c_int, c_int, c_int, c_int, bool);
|
|
|
|
|
|
|
|
let tests = &[
|
|
|
|
Test(55, 1, 2, 55, 1, 2, true), // same version, compatible
|
|
|
|
Test(55, 1, 2, 55, 2, 1, true), // newer minor version, compatible
|
|
|
|
Test(55, 1, 3, 55, 1, 2, true), // older patch version, compatible (but weird)
|
|
|
|
Test(55, 2, 2, 55, 1, 2, false), // older minor version, incompatible
|
|
|
|
Test(55, 1, 2, 56, 1, 2, false), // newer major version, incompatible
|
|
|
|
Test(56, 1, 2, 55, 1, 2, false), // older major version, incompatible
|
|
|
|
];
|
|
|
|
|
|
|
|
for t in tests {
|
|
|
|
let l = super::Library::new(
|
|
|
|
"avutil", (t.0 << 16) | (t.1 << 8) | t.2, (t.3 << 16) | (t.4 << 8) | t.5);
|
|
|
|
assert!(l.is_compatible() == t.6, "{} expected={}", l, t.6);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
fix moonfire_ffmpeg::Error formatting
This would return a string with trailing nuls up to the buffer size (64
bytes) which would cause problems later. One in particular: in
"moonfire-nvr config", if testing a camera failed, displaying the error would
panic with the backtrace below.
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: NulError(33, [69, 114, 114, 111, 114, 58, 32, 102, 102, 109, 112, 101, 103, 58, 32, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 32, 114, 101, 102, 117, 115, 101, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])', src/libcore/result.rs:860:4
stack backtrace:
0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace
1: std::panicking::default_hook::{{closure}}
2: std::panicking::default_hook
3: std::panicking::rust_panic_with_hook
4: std::panicking::begin_panic_new
5: std::panicking::begin_panic_fmt
6: rust_begin_unwind
7: core::panicking::panic_fmt
8: core::result::unwrap_failed
9: <core::result::Result<T, E>>::unwrap
10: <&'a str as ncurses::ToCStr>::to_c_str
11: ncurses::addstr
12: ncurses::mvaddstr
13: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::print_at
14: cursive::printer::Printer::print
15: <cursive::views::text_view::TextView as cursive::view::View>::draw::{{closure}}
16: cursive::view::scroll::ScrollBase::draw
17: <cursive::views::text_view::TextView as cursive::view::View>::draw
18: <cursive::views::dialog::Dialog as cursive::view::View>::draw
19: <cursive::views::layer::Layer<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
20: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
21: <cursive::views::shadow_view::ShadowView<T> as cursive::view::view_wrapper::ViewWrapper>::wrap_draw
22: cursive::view::view_wrapper::<impl cursive::view::View for T>::draw
23: <cursive::views::stack_view::StackView as cursive::view::View>::draw::{{closure}}
24: cursive::printer::Printer::with_color::{{closure}}
25: <cursive::backend::curses::n::Concrete as cursive::backend::Backend>::with_color
26: cursive::printer::Printer::with_color
27: <cursive::views::stack_view::StackView as cursive::view::View>::draw
28: cursive::Cursive::draw
29: cursive::Cursive::step
30: cursive::Cursive::run
31: moonfire_nvr::cmds::config::run
32: moonfire_nvr::cmds::Command::run
33: moonfire_nvr::main
34: __rust_maybe_catch_panic
35: std::rt::lang_start
36: main
2017-09-22 09:47:08 -04:00
|
|
|
#[test]
|
|
|
|
fn test_error() {
|
|
|
|
let eof_formatted = format!("{}", Error::eof());
|
|
|
|
assert!(eof_formatted.contains("End of file"), "eof is: {}", eof_formatted);
|
|
|
|
|
|
|
|
// Errors should be round trippable to a CString. (This will fail if they contain NUL
|
|
|
|
// bytes.)
|
|
|
|
CString::new(eof_formatted).unwrap();
|
|
|
|
}
|
|
|
|
}
|