147             return s->mb_num;  in mpeg4_is_resync()
150             int len, mb_num;  in mpeg4_is_resync()  local
151             int mb_num_bits = av_log2(s->mb_num - 1) + 1;  in mpeg4_is_resync()
161             mb_num = get_bits(&s->gb, mb_num_bits);  in mpeg4_is_resync()
162             if (!mb_num || mb_num > s->mb_num || get_bits_count(&s->gb)+6 > s->gb.size_in_bits)  in mpeg4_is_resync()
163                 mb_num= -1;  in mpeg4_is_resync()
168                 return mb_num;  in mpeg4_is_resync()
451     int mb_num_bits      = av_log2(s->mb_num - 1) + 1;  in ff_mpeg4_decode_video_packet_header()
452     int header_extension = 0, mb_num, len;  in ff_mpeg4_decode_video_packet_header()  local
472     mb_num = get_bits(&s->gb, mb_num_bits);  in ff_mpeg4_decode_video_packet_header()
473     if (mb_num >= s->mb_num || !mb_num) {  in ff_mpeg4_decode_video_packet_header()
475                "illegal mb_num in video packet (%d %d) \n", mb_num, s->mb_num);  in ff_mpeg4_decode_video_packet_header()
479     s->mb_x = mb_num % s->mb_width;  in ff_mpeg4_decode_video_packet_header()
480     s->mb_y = mb_num / s->mb_width;  in ff_mpeg4_decode_video_packet_header()
553     uint16_t mb_num;  in ff_mpeg4_decode_studio_slice_header()  local
557         mb_num = get_bits(gb, vlc_len);  in ff_mpeg4_decode_studio_slice_header()
559         if (mb_num >= s->mb_num)  in ff_mpeg4_decode_studio_slice_header()
562         s->mb_x = mb_num % s->mb_width;  in ff_mpeg4_decode_studio_slice_header()
563         s->mb_y = mb_num / s->mb_width;  in ff_mpeg4_decode_studio_slice_header()
693     int mb_num = 0;  in mpeg4_decode_partition_a()  local
705             mb_num++;  in mpeg4_decode_partition_a()
715                         return mb_num - 1;  in mpeg4_decode_partition_a()
756                     return mb_num - 1;  in mpeg4_decode_partition_a()
877     return mb_num;  in mpeg4_decode_partition_a()
886     int mb_num = 0;  in mpeg4_decode_partition_b()  local
891     for (s->mb_y = s->resync_mb_y; mb_num < mb_count; s->mb_y++) {  in mpeg4_decode_partition_b()
893         for (; mb_num < mb_count && s->mb_x < s->mb_width; s->mb_x++) {  in mpeg4_decode_partition_b()
896             mb_num++;  in mpeg4_decode_partition_b()
966         if (mb_num >= mb_count)  in mpeg4_decode_partition_b()
980     int mb_num;  in ff_mpeg4_decode_partitions()  local
985     mb_num = mpeg4_decode_partition_a(ctx);  in ff_mpeg4_decode_partitions()
986     if (mb_num <= 0) {  in ff_mpeg4_decode_partitions()
989         return mb_num ? mb_num : AVERROR_INVALIDDATA;  in ff_mpeg4_decode_partitions()
992     if (s->resync_mb_x + s->resync_mb_y * s->mb_width + mb_num > s->mb_num) {  in ff_mpeg4_decode_partitions()
999     s->mb_num_left = mb_num;  in ff_mpeg4_decode_partitions()
1023     ret = mpeg4_decode_partition_b(s, mb_num);  in ff_mpeg4_decode_partitions()