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Assign PTS to the right frame

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The PTS was read from the socket and set as the current one even before
the frame was consumed, so it could be assigned to the previous frame
"in advance".

Store the PTS for the current frame and the last PTS read from the
packet header of the next frame in separate fields.

As a side-effect, this fixes the warning on quit:

> Application provided invalid, non monotonically increasing dts to
> muxer in stream 0: 17164020 >= 17164020
This commit is contained in:
Romain Vimont 2018-11-09 21:22:41 +01:00
parent 2de0a9ee02
commit 0cb16be9f5
2 changed files with 6 additions and 1 deletions
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6
app/src/decoder.c
View file

@ -40,12 +40,16 @@ static int read_packet(void *opaque, uint8_t *buf, int buf_size) {
remaining = decoder->remaining;
if (remaining == 0) {
// the previous PTS read is now for the current frame
decoder->pts = decoder->next_pts;
// FIXME what if only half of the header is available?
ret = net_recv(decoder->video_socket, header, HEADER_SIZE);
if (ret <= 0)
return ret;
decoder->pts = from_be(header, 8);
// read the PTS for the next frame
decoder->next_pts = from_be(header, 8);
decoder->buffer_info_flags = from_be(header + 8, 4);
remaining = from_be(header + 12, 4);
}

1
app/src/decoder.h
View file

@ -15,6 +15,7 @@ struct decoder {
SDL_Thread *thread;
SDL_mutex *mutex;
struct recorder *recorder;
uint64_t next_pts;
uint64_t pts;
uint32_t buffer_info_flags;
int remaining;