void ff_framequeue_skip_samples(FFFrameQueue *fq, size_t samples, AVRational time_base) { FFFrameBucket *b; size_t bytes; int planar, planes, i; check_consistency(fq); av_assert1(fq->queued); b = bucket(fq, 0); av_assert1(samples < b->frame->nb_samples); planar = av_sample_fmt_is_planar(b->frame->format); planes = planar ? b->frame->channels : 1; bytes = samples * av_get_bytes_per_sample(b->frame->format); if (!planar) bytes *= b->frame->channels; if (b->frame->pts != AV_NOPTS_VALUE) b->frame->pts += av_rescale_q(samples, av_make_q(1, b->frame->sample_rate), time_base); b->frame->nb_samples -= samples; b->frame->linesize[0] -= bytes; for (i = 0; i < planes; i++) b->frame->extended_data[i] += bytes; for (i = 0; i < planes && i < AV_NUM_DATA_POINTERS; i++) b->frame->data[i] = b->frame->extended_data[i]; fq->total_samples_tail += samples; ff_framequeue_update_peeked(fq, 0); }