static void matroska_add_index_entries(MatroskaDemuxContext *matroska) { EbmlList *index_list; MatroskaIndex *index; int index_scale = 1; int i, j; if (matroska->ctx->flags & AVFMT_FLAG_IGNIDX) return; index_list = &matroska->index; index = index_list->elem; if (index_list->nb_elem && index[0].time > 1E14 / matroska->time_scale) { av_log(matroska->ctx, AV_LOG_WARNING, "Working around broken index.\n"); index_scale = matroska->time_scale; } for (i = 0; i < index_list->nb_elem; i++) { EbmlList *pos_list = &index[i].pos; MatroskaIndexPos *pos = pos_list->elem; for (j = 0; j < pos_list->nb_elem; j++) { MatroskaTrack *track = matroska_find_track_by_num(matroska, pos[j].track); if (track && track->stream) av_add_index_entry(track->stream, pos[j].pos + matroska->segment_start, index[i].time / index_scale, 0, 0, AVINDEX_KEYFRAME); } } }