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Clone replay buffer immediately, only one short mutex lock

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dec05eba
2026-01-21 17:29:03 +01:00
parent ede1e46503
commit 45daccff84
1 changed files with 21 additions and 15 deletions
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36
src/main.cpp
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@@ -1298,37 +1298,42 @@ static void save_replay_async(AVCodecContext *video_codec_context, int video_str
return;
pthread_mutex_lock(&encoder->replay_mutex);
const gsr_replay_buffer_iterator search_start_iterator = current_save_replay_seconds == save_replay_seconds_full ? gsr_replay_buffer_iterator{0, 0} : gsr_replay_buffer_find_packet_index_by_time_passed(encoder->replay_buffer, current_save_replay_seconds);
const gsr_replay_buffer_iterator video_start_iterator = gsr_replay_buffer_find_keyframe(encoder->replay_buffer, search_start_iterator, video_stream_index, false);
gsr_replay_buffer *cloned_replay_buffer = gsr_replay_buffer_clone(encoder->replay_buffer);
pthread_mutex_unlock(&encoder->replay_mutex);
if(!cloned_replay_buffer) {
// TODO: Return this error to mark the replay as failed
fprintf(stderr, "gsr error: failed to save replay: failed to clone replay buffer\n");
return;
}
const gsr_replay_buffer_iterator search_start_iterator = current_save_replay_seconds == save_replay_seconds_full ? gsr_replay_buffer_iterator{0, 0} : gsr_replay_buffer_find_packet_index_by_time_passed(cloned_replay_buffer, current_save_replay_seconds);
const gsr_replay_buffer_iterator video_start_iterator = gsr_replay_buffer_find_keyframe(cloned_replay_buffer, search_start_iterator, video_stream_index, false);
if(video_start_iterator.packet_index == (size_t)-1) {
fprintf(stderr, "gsr error: failed to save replay: failed to find a video keyframe. perhaps replay was saved too fast, before anything has been recorded\n");
pthread_mutex_lock(&encoder->replay_mutex);
gsr_replay_buffer_destroy(cloned_replay_buffer);
pthread_mutex_unlock(&encoder->replay_mutex);
return;
}
const int64_t video_pts_offset = gsr_replay_buffer_iterator_get_packet(encoder->replay_buffer, video_start_iterator)->pts;
const int64_t video_pts_offset = gsr_replay_buffer_iterator_get_packet(cloned_replay_buffer, video_start_iterator)->pts;
std::vector<AudioPtsOffset> audio_pts_offsets;
audio_pts_offsets.reserve(audio_tracks.size());
for(const AudioTrack &audio_track : audio_tracks) {
const gsr_replay_buffer_iterator audio_start_iterator = gsr_replay_buffer_find_keyframe(encoder->replay_buffer, video_start_iterator, audio_track.stream_index, false);
const int64_t audio_pts_offset = audio_start_iterator.packet_index == (size_t)-1 ? 0 : gsr_replay_buffer_iterator_get_packet(encoder->replay_buffer, audio_start_iterator)->pts;
const gsr_replay_buffer_iterator audio_start_iterator = gsr_replay_buffer_find_keyframe(cloned_replay_buffer, video_start_iterator, audio_track.stream_index, false);
const int64_t audio_pts_offset = audio_start_iterator.packet_index == (size_t)-1 ? 0 : gsr_replay_buffer_iterator_get_packet(cloned_replay_buffer, audio_start_iterator)->pts;
audio_pts_offsets.push_back(AudioPtsOffset{audio_pts_offset, audio_track.stream_index});
}
gsr_replay_buffer *cloned_replay_buffer = gsr_replay_buffer_clone(encoder->replay_buffer);
if(!cloned_replay_buffer) {
// TODO: Return this error to mark the replay as failed
fprintf(stderr, "gsr error: failed to save replay: failed to clone replay buffer\n");
std::string output_filepath = create_new_recording_filepath_from_timestamp(arg_parser.filename, "Replay", file_extension, date_folders);
RecordingStartResult recording_start_result = start_recording_create_streams(output_filepath.c_str(), arg_parser, video_codec_context, audio_tracks, hdr, video_sources);
if(!recording_start_result.av_format_context) {
pthread_mutex_lock(&encoder->replay_mutex);
gsr_replay_buffer_destroy(cloned_replay_buffer);
pthread_mutex_unlock(&encoder->replay_mutex);
return;
}
pthread_mutex_unlock(&encoder->replay_mutex);
std::string output_filepath = create_new_recording_filepath_from_timestamp(arg_parser.filename, "Replay", file_extension, date_folders);
RecordingStartResult recording_start_result = start_recording_create_streams(output_filepath.c_str(), arg_parser, video_codec_context, audio_tracks, hdr, video_sources);
if(!recording_start_result.av_format_context)
return;
save_replay_output_filepath = std::move(output_filepath);
@@ -1401,6 +1406,7 @@ static void save_replay_async(AVCodecContext *video_codec_context, int video_str
}
stop_recording_close_streams(recording_start_result.av_format_context);
pthread_mutex_lock(&encoder->replay_mutex);
gsr_replay_buffer_destroy(cloned_replay_buffer);
pthread_mutex_unlock(&encoder->replay_mutex);