mp3->start_pad = v>>12;
mp3-> end_pad = v&4095;
st->skip_samples = mp3->start_pad + 528 + 1;
+ if (mp3->frames) {
+ st->first_discard_sample = -mp3->end_pad + 528 + 1 + mp3->frames * (int64_t)spf;
+ st->last_discard_sample = mp3->frames * (int64_t)spf;
+ }
if (!st->start_time)
st->start_time = av_rescale_q(st->skip_samples,
(AVRational){1, c->sample_rate},