void ff_dv_offset_reset(DVDemuxContext *c, int64_t frame_offset) { c->frames= frame_offset; if (c->ach) c->abytes= av_rescale_q(c->frames, c->sys->time_base, (AVRational){8, c->ast[0]->codec->bit_rate}); c->audio_pkt[0].size = c->audio_pkt[1].size = 0; c->audio_pkt[2].size = c->audio_pkt[3].size = 0; }