{
const SPS *sps;
const PPS *pps;
- unsigned int first_mb_in_slice;
unsigned int pps_id;
int ret;
unsigned int slice_type, tmp, i;
int frame_num, droppable, picture_structure;
int mb_aff_frame = 0;
- first_mb_in_slice = get_ue_golomb(&sl->gb);
+ sl->first_mb_addr = get_ue_golomb(&sl->gb);
- if (first_mb_in_slice == 0) { // FIXME better field boundary detection
+ if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
if (h->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {
ff_h264_field_end(h, sl, 1);
}
if (slice_type > 9) {
av_log(h->avctx, AV_LOG_ERROR,
"slice type %d too large at %d\n",
- slice_type, first_mb_in_slice);
+ slice_type, sl->first_mb_addr);
return AVERROR_INVALIDDATA;
}
if (slice_type > 4) {
}
}
- assert(h->mb_num == h->mb_width * h->mb_height);
- if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
- first_mb_in_slice >= h->mb_num) {
- av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
- return AVERROR_INVALIDDATA;
- }
- sl->resync_mb_x = sl->mb_x = first_mb_in_slice % h->mb_width;
- sl->resync_mb_y = sl->mb_y = (first_mb_in_slice / h->mb_width) <<
- FIELD_OR_MBAFF_PICTURE(h);
- if (h->picture_structure == PICT_BOTTOM_FIELD)
- sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
- assert(sl->mb_y < h->mb_height);
-
if (h->picture_structure == PICT_FRAME) {
h->curr_pic_num = h->poc.frame_num;
h->max_pic_num = 1 << sps->log2_max_frame_num;
if (ret < 0)
return ret;
+ assert(h->mb_num == h->mb_width * h->mb_height);
+ if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
+ sl->first_mb_addr >= h->mb_num) {
+ av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
+ return AVERROR_INVALIDDATA;
+ }
+ sl->resync_mb_x = sl->mb_x = sl->first_mb_addr % h->mb_width;
+ sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
+ FIELD_OR_MBAFF_PICTURE(h);
+ if (h->picture_structure == PICT_BOTTOM_FIELD)
+ sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
+ assert(sl->mb_y < h->mb_height);
+
if (!h->setup_finished)
ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
h->ps.sps, &h->poc, h->picture_structure, h->nal_ref_idc);