diff options
Diffstat (limited to 'ffplay.c')
| -rw-r--r-- | ffplay.c | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -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) |