}else
slice_count = avctx->slice_count;
+ //parse first slice header to check whether this frame can be decoded
+ if(get_slice_offset(avctx, slices_hdr, 0) > buf_size){
+ av_log(avctx, AV_LOG_ERROR, "Slice offset is greater than frame size\n");
+ return -1;
+ }
+ init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), buf_size-get_slice_offset(avctx, slices_hdr, 0));
+ if(r->parse_slice_header(r, &r->s.gb, &si) < 0){
+ av_log(avctx, AV_LOG_ERROR, "First slice header is incorrect\n");
+ return -1;
+ }
+ if((!s->last_picture_ptr || !s->last_picture_ptr->data[0]) && si.type == FF_B_TYPE)
+ return -1;
+
for(i=0; i<slice_count; i++){
int offset= get_slice_offset(avctx, slices_hdr, i);
int size;
}else
r->si.end = si.start;
}
- if(!i && si.type == FF_B_TYPE && (!s->last_picture_ptr || !s->last_picture_ptr->data[0]))
- return -1;
last = rv34_decode_slice(r, r->si.end, buf + offset, size);
s->mb_num_left = r->s.mb_x + r->s.mb_y*r->s.mb_width - r->si.start;
if(last)