ffmpeg - How to avoid audio pts start from zero after reconfigure the atempo? -


i found pts of audio start 0 if reconfigure atempo filter in ijkplayer based on ffplay.

the code snippet ijkplayer

#ifdef ffp_avfilter_playback_rate     if (fabsf(ffp->pf_playback_rate) > 0.00001 &&         fabsf(ffp->pf_playback_rate - 1.0f) > 0.00001) {         if (afilters_args[0])             av_strlcatf(afilters_args, sizeof(afilters_args), ",");          av_log(ffp, av_log_info, "af_rate=%f\n", ffp->pf_playback_rate);         av_strlcatf(afilters_args, sizeof(afilters_args), "atempo=%f", ffp->pf_playback_rate);     } #endif      if ((ret = configure_filtergraph(is->agraph, afilters_args[0] ? afilters_args : null, filt_asrc, filt_asink)) < 0)         goto end;      is->in_audio_filter  = filt_asrc;     is->out_audio_filter = filt_asink;

how avoid audio pts start 0 after reconfigure atempo filter ?


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