The decoder assumes a single bit depth for all the planes
while the specification allows different bit depths for luma
and chroma.
Avoid the possible problems described in CVE-2013-2277
CC: libav-stable@libav.org
if (h->avctx->has_b_frames < 2)
h->avctx->has_b_frames = !h->low_delay;
+ if (h->sps.bit_depth_luma != h->sps.bit_depth_chroma) {
+ av_log_missing_feature(h->avctx,
+ "Different bit depth between chroma and luma", 1);
+ return AVERROR_PATCHWELCOME;
+ }
+
if (h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
if (h->avctx->codec &&