avctx->height = ctx->height;
avctx->bits_per_raw_sample = 10;
+ //The minimum size is 2bit per macroblock
+ // hqx_decode_422 & hqx_decode_444 have a unconditionally stored 4bits hqx_quants index
+ // hqx_decode_422a & hqx_decode_444a use cbp_vlc which has a minimum length of 2 bits for its VLCs
+ // The code rejects slices overlapping in their input data
+ if (avctx->coded_width / 16 * (avctx->coded_height / 16) *
+ (100 - avctx->discard_damaged_percentage) / 100 > 4LL * avpkt->size)
+ return AVERROR_INVALIDDATA;
+
switch (ctx->format) {
case HQX_422:
avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
int i;
HQXContext *ctx = avctx->priv_data;
- if (avctx->internal->is_copy)
- return 0;
-
ff_free_vlc(&ctx->cbp_vlc);
for (i = 0; i < 3; i++) {
ff_free_vlc(&ctx->dc_vlc[i]);