Before, the decoder could interpret a corrupt frame
as a NAL_DPA and NAL_DPC, and then start decoding
even if decode_slice_header() returned an error.
This frequently caused crashes.
Fixes issue1228, issue1229, and partially issue1238.
Originally committed as revision 19328 to svn://svn.ffmpeg.org/ffmpeg/trunk
init_get_bits(&hx->s.gb, ptr, bit_length);
hx->intra_gb_ptr=
hx->inter_gb_ptr= NULL;
+
+ if ((err = decode_slice_header(hx, h)) < 0)
+ break;
+
hx->s.data_partitioning = 1;
- err = decode_slice_header(hx, h);
break;
case NAL_DPB:
init_get_bits(&hx->intra_gb, ptr, bit_length);