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Fix PTS when not monotonically increasing 

Some decoders fail to guarantee that PTS is strictly monotonically
increasing. Fix the (rescaled) PTS when it does not respect this
constraint.

Fixes #4054 <https://github.com/Genymobile/scrcpy/issues/4054>
This commit is contained in:
Romain Vimont 2023-06-03 14:52:53 +02:00
parent 9ca554ca41
commit 323ea2f1d9
2 changed files with 11 additions and 0 deletions
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10
app/src/recorder.c
View File

@ -100,6 +100,15 @@ sc_recorder_write_stream(struct sc_recorder *recorder,
struct sc_recorder_stream *st, AVPacket *packet) {
AVStream *stream = recorder->ctx->streams[st->index];
sc_recorder_rescale_packet(stream, packet);
if (st->last_pts != AV_NOPTS_VALUE && packet->pts <= st->last_pts) {
LOGW("Fixing PTS non monotonically increasing in stream %d "
"(%" PRIi64 " >= %" PRIi64 ")",
st->index, st->last_pts, packet->pts);
packet->pts = ++st->last_pts;
packet->dts = packet->pts;
} else {
st->last_pts = packet->pts;
}
return av_interleaved_write_frame(recorder->ctx, packet) >= 0;
}
@ -664,6 +673,7 @@ sc_recorder_audio_packet_sink_disable(struct sc_packet_sink *sink) {
static void
sc_recorder_stream_init(struct sc_recorder_stream *stream) {
stream->index = -1;
stream->last_pts = AV_NOPTS_VALUE;
}
bool

1
app/src/recorder.h
View File

@ -16,6 +16,7 @@ struct sc_recorder_queue SC_VECDEQUE(AVPacket *);
struct sc_recorder_stream {
int index;
int64_t last_pts;
};
struct sc_recorder {