2016-12-21 01:08:18 -05:00
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// This file is part of Moonfire NVR, a security camera digital video recorder.
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// Copyright (C) 2016 Scott Lamb <slamb@slamb.org>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations including
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// the two.
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//
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// You must obey the GNU General Public License in all respects for all
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// of the code used other than OpenSSL. If you modify file(s) with this
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// exception, you may extend this exception to your version of the
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// file(s), but you are not obligated to do so. If you do not wish to do
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// so, delete this exception statement from your version. If you delete
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// this exception statement from all source files in the program, then
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// also delete it here.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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/// Upgrades a version 0 schema to a version 1 schema.
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2018-03-01 00:21:47 -05:00
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use db;
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2018-02-21 01:46:14 -05:00
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use failure::Error;
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2018-03-01 00:21:47 -05:00
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use recording;
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2018-12-01 18:20:19 -05:00
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use rusqlite::{self, types::ToSql};
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2016-12-21 01:08:18 -05:00
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use std::collections::HashMap;
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2018-03-01 12:26:03 -05:00
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pub fn run(_args: &super::Args, tx: &rusqlite::Transaction) -> Result<(), Error> {
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// These create statements match the schema.sql when version 1 was the latest.
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tx.execute_batch(r#"
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alter table camera rename to old_camera;
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create table camera (
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id integer primary key,
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uuid blob unique,
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short_name text not null,
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description text,
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host text,
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username text,
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password text,
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main_rtsp_path text,
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sub_rtsp_path text,
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retain_bytes integer not null check (retain_bytes >= 0),
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next_recording_id integer not null check (next_recording_id >= 0)
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);
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alter table recording rename to old_recording;
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drop index recording_cover;
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create table recording (
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composite_id integer primary key,
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camera_id integer not null references camera (id),
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run_offset integer not null,
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flags integer not null,
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sample_file_bytes integer not null check (sample_file_bytes > 0),
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start_time_90k integer not null check (start_time_90k > 0),
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duration_90k integer not null
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check (duration_90k >= 0 and duration_90k < 5*60*90000),
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local_time_delta_90k integer not null,
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video_samples integer not null check (video_samples > 0),
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video_sync_samples integer not null check (video_samples > 0),
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video_sample_entry_id integer references video_sample_entry (id),
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check (composite_id >> 32 = camera_id)
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);
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create index recording_cover on recording (
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camera_id,
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start_time_90k,
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duration_90k,
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video_samples,
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video_sync_samples,
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video_sample_entry_id,
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sample_file_bytes,
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run_offset,
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flags
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);
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create table recording_playback (
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composite_id integer primary key references recording (composite_id),
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sample_file_uuid blob not null check (length(sample_file_uuid) = 16),
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sample_file_sha1 blob not null check (length(sample_file_sha1) = 20),
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video_index blob not null check (length(video_index) > 0)
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);
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"#)?;
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let camera_state = fill_recording(tx).unwrap();
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fill_camera(tx, camera_state).unwrap();
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tx.execute_batch(r#"
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drop table old_camera;
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drop table old_recording;
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"#)?;
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Ok(())
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2016-12-21 01:08:18 -05:00
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}
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struct CameraState {
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/// tuple of (run_start_id, next_start_90k).
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current_run: Option<(i64, i64)>,
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/// As in the `next_recording_id` field of the `camera` table.
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next_recording_id: i32,
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}
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2017-01-06 23:48:06 -05:00
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fn has_trailing_zero(video_index: &[u8]) -> Result<bool, Error> {
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let mut it = recording::SampleIndexIterator::new();
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while it.next(video_index)? {}
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Ok(it.duration_90k == 0)
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}
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2016-12-21 01:08:18 -05:00
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/// Fills the `recording` and `recording_playback` tables from `old_recording`, returning
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/// the `camera_state` map for use by a following call to `fill_cameras`.
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fn fill_recording(tx: &rusqlite::Transaction) -> Result<HashMap<i32, CameraState>, Error> {
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let mut select = tx.prepare(r#"
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select
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camera_id,
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sample_file_bytes,
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start_time_90k,
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duration_90k,
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local_time_delta_90k,
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video_samples,
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video_sync_samples,
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video_sample_entry_id,
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sample_file_uuid,
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sample_file_sha1,
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2017-01-06 23:48:06 -05:00
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video_index,
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id
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2016-12-21 01:08:18 -05:00
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from
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old_recording
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"#)?;
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let mut insert1 = tx.prepare(r#"
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insert into recording values (:composite_id, :camera_id, :run_offset, :flags,
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:sample_file_bytes, :start_time_90k, :duration_90k,
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:local_time_delta_90k, :video_samples, :video_sync_samples,
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:video_sample_entry_id)
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"#)?;
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let mut insert2 = tx.prepare(r#"
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insert into recording_playback values (:composite_id, :sample_file_uuid, :sample_file_sha1,
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:video_index)
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"#)?;
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2018-12-01 18:20:19 -05:00
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let mut rows = select.query(&[] as &[&ToSql])?;
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let mut camera_state: HashMap<i32, CameraState> = HashMap::new();
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while let Some(row) = rows.next() {
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let row = row?;
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let camera_id: i32 = row.get_checked(0)?;
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let camera_state = camera_state.entry(camera_id).or_insert_with(|| {
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CameraState{
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current_run: None,
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next_recording_id: 1,
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}
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});
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let composite_id = ((camera_id as i64) << 32) | (camera_state.next_recording_id as i64);
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camera_state.next_recording_id += 1;
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let sample_file_bytes: i32 = row.get_checked(1)?;
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let start_time_90k: i64 = row.get_checked(2)?;
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let duration_90k: i32 = row.get_checked(3)?;
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let local_time_delta_90k: i64 = row.get_checked(4)?;
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let video_samples: i32 = row.get_checked(5)?;
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let video_sync_samples: i32 = row.get_checked(6)?;
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let video_sample_entry_id: i32 = row.get_checked(7)?;
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let sample_file_uuid: db::FromSqlUuid = row.get_checked(8)?;
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let sample_file_sha1: Vec<u8> = row.get_checked(9)?;
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let video_index: Vec<u8> = row.get_checked(10)?;
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2017-01-06 23:48:06 -05:00
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let old_id: i32 = row.get_checked(11)?;
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let trailing_zero = has_trailing_zero(&video_index).unwrap_or_else(|e| {
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warn!("recording {}/{} (sample file {}, formerly recording {}) has corrupt \
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video_index: {}",
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2018-03-01 00:21:47 -05:00
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camera_id, composite_id & 0xFFFF, sample_file_uuid.0, old_id, e);
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2017-01-06 23:48:06 -05:00
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false
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});
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2016-12-21 01:08:18 -05:00
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let run_id = match camera_state.current_run {
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Some((run_id, expected_start)) if expected_start == start_time_90k => run_id,
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_ => composite_id,
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};
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insert1.execute_named(&[
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(":composite_id", &composite_id),
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(":camera_id", &camera_id),
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(":run_offset", &(composite_id - run_id)),
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(":flags", &(if trailing_zero { db::RecordingFlags::TrailingZero as i32 } else { 0 })),
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(":sample_file_bytes", &sample_file_bytes),
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(":start_time_90k", &start_time_90k),
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(":duration_90k", &duration_90k),
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(":local_time_delta_90k", &local_time_delta_90k),
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(":video_samples", &video_samples),
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(":video_sync_samples", &video_sync_samples),
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(":video_sample_entry_id", &video_sample_entry_id),
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])?;
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insert2.execute_named(&[
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(":composite_id", &composite_id),
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2018-03-01 00:21:47 -05:00
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(":sample_file_uuid", &&sample_file_uuid.0.as_bytes()[..]),
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(":sample_file_sha1", &sample_file_sha1),
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(":video_index", &video_index),
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])?;
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camera_state.current_run = if trailing_zero {
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None
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} else {
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Some((run_id, start_time_90k + duration_90k as i64))
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};
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}
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Ok(camera_state)
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}
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fn fill_camera(tx: &rusqlite::Transaction, camera_state: HashMap<i32, CameraState>)
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-> Result<(), Error> {
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let mut select = tx.prepare(r#"
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select
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id, uuid, short_name, description, host, username, password, main_rtsp_path,
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sub_rtsp_path, retain_bytes
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from
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old_camera
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"#)?;
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let mut insert = tx.prepare(r#"
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insert into camera values (:id, :uuid, :short_name, :description, :host, :username, :password,
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:main_rtsp_path, :sub_rtsp_path, :retain_bytes, :next_recording_id)
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"#)?;
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2018-12-01 18:20:19 -05:00
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let mut rows = select.query(&[] as &[&ToSql])?;
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2016-12-21 01:08:18 -05:00
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while let Some(row) = rows.next() {
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let row = row?;
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let id: i32 = row.get_checked(0)?;
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let uuid: Vec<u8> = row.get_checked(1)?;
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let short_name: String = row.get_checked(2)?;
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let description: String = row.get_checked(3)?;
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let host: String = row.get_checked(4)?;
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let username: String = row.get_checked(5)?;
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let password: String = row.get_checked(6)?;
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let main_rtsp_path: String = row.get_checked(7)?;
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let sub_rtsp_path: String = row.get_checked(8)?;
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let retain_bytes: i64 = row.get_checked(9)?;
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insert.execute_named(&[
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(":id", &id),
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(":uuid", &uuid),
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(":short_name", &short_name),
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(":description", &description),
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(":host", &host),
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(":username", &username),
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(":password", &password),
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(":main_rtsp_path", &main_rtsp_path),
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(":sub_rtsp_path", &sub_rtsp_path),
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(":retain_bytes", &retain_bytes),
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(":next_recording_id",
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&camera_state.get(&id).map(|s| s.next_recording_id).unwrap_or(1)),
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])?;
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}
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Ok(())
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}
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