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avcodec/utils: correct align value for interplay

Fixes out of array access
Fixes: 452/fuzz-1-ffmpeg_VIDEO_AV_CODEC_ID_INTERPLAY_VIDEO_fuzzer

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer
Michael Niedermayer committed Jan 24, 2017
1 parent 0b60722 commit 2080bc33717955a0e4268e738acf8c1eeddbf8cb
Showing with 6 additions and 1 deletion.
  1. +6 −1 libavcodec/utils.c
@@ -376,6 +376,10 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
w_align = 4;
h_align = 4;
}
if (s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
w_align = 8;
h_align = 8;
}
break;
case AV_PIX_FMT_PAL8:
case AV_PIX_FMT_BGR8:
@@ -385,7 +389,8 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
w_align = 4;
h_align = 4;
}
if (s->codec_id == AV_CODEC_ID_JV) {
if (s->codec_id == AV_CODEC_ID_JV ||
s->codec_id == AV_CODEC_ID_INTERPLAY_VIDEO) {
w_align = 8;
h_align = 8;
}

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