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AI automatically translates all comments in the code into English (#3917)

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alex
2024-09-19 14:53:50 +08:00
committed by GitHub
parent 046de691cb
commit 4152dcd409
279 changed files with 10602 additions and 3038 deletions
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48
src/Record/MP4Recorder.cpp
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@@ -24,7 +24,8 @@ namespace mediakit {
MP4Recorder::MP4Recorder(const MediaTuple &tuple, const string &path, size_t max_second) {
_folder_path = path;
/////record 业务逻辑//////
// ///record 业务逻辑////// [AUTO-TRANSLATED:2e78931a]
// ///record Business Logic//////
static_cast<MediaTuple &>(_info) = tuple;
_info.folder = path;
GET_CONFIG(uint32_t, s_max_second, Protocol::kMP4MaxSecond);
@@ -47,7 +48,8 @@ void MP4Recorder::createFile() {
auto full_path = _folder_path + date + "/" + file_name;
auto full_path_tmp = _folder_path + date + "/." + file_name;
/////record 业务逻辑//////
// ///record 业务逻辑////// [AUTO-TRANSLATED:2e78931a]
// ///record Business Logic//////
_info.start_time = ::time(NULL);
_info.file_name = file_name;
_info.file_path = full_path;
@@ -59,7 +61,8 @@ void MP4Recorder::createFile() {
TraceL << "Open tmp mp4 file: " << full_path_tmp;
_muxer->openMP4(full_path_tmp);
for (auto &track :_tracks) {
//添加track
// 添加track [AUTO-TRANSLATED:80ae762a]
// Add track
_muxer->addTrack(track);
}
_full_path_tmp = full_path_tmp;
@@ -77,23 +80,28 @@ void MP4Recorder::asyncClose() {
TraceL << "Start close tmp mp4 file: " << full_path_tmp;
WorkThreadPool::Instance().getExecutor()->async([muxer, full_path_tmp, full_path, info]() mutable {
info.time_len = muxer->getDuration() / 1000.0f;
// 关闭mp4可能非常耗时，所以要放在后台线程执行
// 关闭mp4可能非常耗时，所以要放在后台线程执行 [AUTO-TRANSLATED:a7378a11]
// Closing mp4 can be very time-consuming, so it should be executed in the background thread
TraceL << "Closing tmp mp4 file: " << full_path_tmp;
muxer->closeMP4();
TraceL << "Closed tmp mp4 file: " << full_path_tmp;
if (!full_path_tmp.empty()) {
// 获取文件大小
// 获取文件大小 [AUTO-TRANSLATED:7b90eb41]
// Get file size
info.file_size = File::fileSize(full_path_tmp);
if (info.file_size < 1024) {
// 录像文件太小，删除之
// 录像文件太小，删除之 [AUTO-TRANSLATED:923d27c3]
// The recording file is too small, delete it
File::delete_file(full_path_tmp);
return;
}
// 临时文件名改成正式文件名，防止mp4未完成时被访问
// 临时文件名改成正式文件名，防止mp4未完成时被访问 [AUTO-TRANSLATED:541a6f00]
// Change the temporary file name to the official file name to prevent access to the mp4 before it is completed
rename(full_path_tmp.data(), full_path.data());
}
TraceL << "Emit mp4 record event: " << full_path;
//触发mp4录制切片生成事件
// 触发mp4录制切片生成事件 [AUTO-TRANSLATED:9959dcd4]
// Trigger mp4 recording slice generation event
NOTICE_EMIT(BroadcastRecordMP4Args, Broadcast::kBroadcastRecordMP4, info);
});
}
@@ -113,9 +121,11 @@ void MP4Recorder::flush() {
bool MP4Recorder::inputFrame(const Frame::Ptr &frame) {
if (!(_have_video && frame->getTrackType() == TrackAudio)) {
//如果有视频且输入的是音频，那么应该忽略切片逻辑
// 如果有视频且输入的是音频，那么应该忽略切片逻辑 [AUTO-TRANSLATED:fbb15d93]
// If there is video and the input is audio, then the slice logic should be ignored
if (_last_dts == 0 || _last_dts > frame->dts()) {
//b帧情况下dts时间戳可能回退
// b帧情况下dts时间戳可能回退 [AUTO-TRANSLATED:1de38f77]
// In the case of b-frames, the dts timestamp may regress
_last_dts = MAX(frame->dts(), _last_dts);
}
auto duration = 5u; // 默认至少一帧5ms
@@ -123,24 +133,30 @@ bool MP4Recorder::inputFrame(const Frame::Ptr &frame) {
duration = MAX(duration, frame->dts() - _last_dts);
}
if (!_muxer || ((duration > _max_second * 1000) && (!_have_video || (_have_video && frame->keyFrame())))) {
//成立条件
// 1、_muxer为空
// 2、到了切片时间，并且只有音频
// 3、到了切片时间，有视频并且遇到视频的关键帧
// 成立条件 [AUTO-TRANSLATED:8c9c6083]
// Conditions for establishment
// 1、_muxer为空 [AUTO-TRANSLATED:fa236097]
// 1. _muxer is empty
// 2、到了切片时间，并且只有音频 [AUTO-TRANSLATED:212e9d23]
// 2. It's time to slice, and there is only audio
// 3、到了切片时间，有视频并且遇到视频的关键帧 [AUTO-TRANSLATED:fa4a71ad]
// 3. It's time to slice, there is video and a video keyframe is encountered
_last_dts = 0;
createFile();
}
}
if (_muxer) {
//生成mp4文件
// 生成mp4文件 [AUTO-TRANSLATED:76a8d77c]
// Generate mp4 file
return _muxer->inputFrame(frame);
}
return false;
}
bool MP4Recorder::addTrack(const Track::Ptr &track) {
//保存所有的track，为创建MP4MuxerFile做准备
// 保存所有的track，为创建MP4MuxerFile做准备 [AUTO-TRANSLATED:815c2486]
// Save all tracks in preparation for creating MP4MuxerFile
_tracks.emplace_back(track);
if (track->getTrackType() == TrackVideo) {
_have_video = true;