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Decode and push frame before recording

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Handle display before recording, to reduce latency.
This commit is contained in:
Romain Vimont 2018-11-09 19:28:28 +01:00
parent 2cd99e7205
commit 61db575861
1 changed files with 18 additions and 18 deletions
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36
app/src/decoder.c
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@ -142,24 +142,6 @@ static int run_decoder(void *data) {
packet.size = 0; packet.size = 0;
while (!av_read_frame(format_ctx, &packet)) { while (!av_read_frame(format_ctx, &packet)) {
if (decoder->recorder) {
// do not record configuration packets
// (they contain no media data and have no PTS/DTS)
// FIXME do not use MediaCodec specific flags
if (!(decoder->buffer_info_flags & MEDIA_CODEC_FLAG_CONFIG)) {
packet.pts = decoder->pts;
packet.dts = decoder->pts;
// no need to rescale with av_packet_rescale_ts(), the timestamps
// are in microseconds both in input and output
if (!recorder_write(decoder->recorder, &packet)) {
LOGE("Could not write frame to output file");
av_packet_unref(&packet);
goto run_quit;
}
}
}
// the new decoding/encoding API has been introduced by: // the new decoding/encoding API has been introduced by:
// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726> // <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 37, 0) #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 37, 0)
@ -194,6 +176,24 @@ static int run_decoder(void *data) {
} }
#endif #endif
if (decoder->recorder) {
// do not record configuration packets
// (they contain no media data and have no PTS/DTS)
// FIXME do not use MediaCodec specific flags
if (!(decoder->buffer_info_flags & MEDIA_CODEC_FLAG_CONFIG)) {
packet.pts = decoder->pts;
packet.dts = decoder->pts;
// no need to rescale with av_packet_rescale_ts(), the timestamps
// are in microseconds both in input and output
if (!recorder_write(decoder->recorder, &packet)) {
LOGE("Could not write frame to output file");
av_packet_unref(&packet);
goto run_quit;
}
}
}
av_packet_unref(&packet); av_packet_unref(&packet);
if (avio_ctx->eof_reached) { if (avio_ctx->eof_reached) {