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authorMarton Balint <cus@passwd.hu>2013-07-06 20:47:12 +0200
committerMarton Balint <cus@passwd.hu>2013-07-09 20:19:54 +0200
commit3886572a83bf868b51d840071e27f40fc94fbd6b (patch)
treeb6eb5d22e79ed11fb4a51cc086b822fd3ab3206b /ffplay.c
parentaa74810fc6b9afe21c9be3725e3d078d10633670 (diff)
ffplay: do not update audio clock with old audio pts if current frame is AV_NOPTS_VALUE
Signed-off-by: Marton Balint <cus@passwd.hu>
Diffstat (limited to 'ffplay.c')
-rw-r--r--ffplay.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/ffplay.c b/ffplay.c
index e66886e7cc..b8783da0a2 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -2297,10 +2297,11 @@ static int audio_decode_frame(VideoState *is)
audio_clock0 = is->audio_clock;
/* update the audio clock with the pts */
- if (is->frame->pts != AV_NOPTS_VALUE) {
+ if (is->frame->pts != AV_NOPTS_VALUE)
is->audio_clock = is->frame->pts * av_q2d(tb) + (double) is->frame->nb_samples / is->frame->sample_rate;
- is->audio_clock_serial = is->audio_pkt_temp_serial;
- }
+ else
+ is->audio_clock = NAN;
+ is->audio_clock_serial = is->audio_pkt_temp_serial;
#ifdef DEBUG
{
static double last_clock;
@@ -2374,8 +2375,10 @@ static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
/* Let's assume the audio driver that is used by SDL has two periods. */
- set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0);
- sync_clock_to_slave(&is->extclk, &is->audclk);
+ if (!isnan(is->audio_clock)) {
+ set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0);
+ sync_clock_to_slave(&is->extclk, &is->audclk);
+ }
}
static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)