diff options
Diffstat (limited to 'libavcodec/kmvc.c')
| -rw-r--r-- | libavcodec/kmvc.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c index 9c98badbde..6d5af5d657 100644 --- a/libavcodec/kmvc.c +++ b/libavcodec/kmvc.c @@ -33,6 +33,7 @@ #define KMVC_KEYFRAME 0x80 #define KMVC_PALETTE 0x40 #define KMVC_METHOD 0x0F +#define MAX_PALSIZE 256 /* * Decoder context @@ -43,7 +44,7 @@ typedef struct KmvcContext { int setpal; int palsize; - uint32_t pal[256]; + uint32_t pal[MAX_PALSIZE]; uint8_t *cur, *prev; uint8_t *frm0, *frm1; GetByteContext g; @@ -376,14 +377,15 @@ static av_cold int decode_init(AVCodecContext * avctx) } if (avctx->extradata_size < 12) { - av_log(NULL, 0, "Extradata missing, decoding may not work properly...\n"); + av_log(avctx, AV_LOG_WARNING, + "Extradata missing, decoding may not work properly...\n"); c->palsize = 127; } else { c->palsize = AV_RL16(avctx->extradata + 10); - if (c->palsize > 255U) { + if (c->palsize >= (unsigned)MAX_PALSIZE) { c->palsize = 127; - av_log(NULL, AV_LOG_ERROR, "palsize too big\n"); - return -1; + av_log(avctx, AV_LOG_ERROR, "KMVC palette too large\n"); + return AVERROR_INVALIDDATA; } } |