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Code Issues Releases Activity

avcodec/vp56: Fix sign typo

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Fixes: 664/clusterfuzz-testcase-4917047475568640

The change to fate is due to a truncated last frames which is now detected as damaged.

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 513a3494396d0a20233273b3cadcb5ee86485d5c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-02-24 21:05:33 +01:00
parent 24a9a51e57
commit 1e301c21d7
3 changed files with 3 additions and 3 deletions
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2
libavcodec/vp5.c
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@ -180,7 +180,7 @@ static int vp5_parse_coeff(VP56Context *s)
int b, i, cg, idx, ctx, ctx_last; int b, i, cg, idx, ctx, ctx_last;
int pt = 0; /* plane type (0 for Y, 1 for U or V) */ int pt = 0; /* plane type (0 for Y, 1 for U or V) */
if (c->end >= c->buffer && c->bits >= 0) { if (c->end <= c->buffer && c->bits >= 0) {
av_log(s->avctx, AV_LOG_ERROR, "End of AC stream reached in vp5_parse_coeff\n"); av_log(s->avctx, AV_LOG_ERROR, "End of AC stream reached in vp5_parse_coeff\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }

2
libavcodec/vp6.c
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@ -450,7 +450,7 @@ static int vp6_parse_coeff(VP56Context *s)
int b, i, cg, idx, ctx; int b, i, cg, idx, ctx;
int pt = 0; /* plane type (0 for Y, 1 for U or V) */ int pt = 0; /* plane type (0 for Y, 1 for U or V) */
if (c->end >= c->buffer && c->bits >= 0) { if (c->end <= c->buffer && c->bits >= 0) {
av_log(s->avctx, AV_LOG_ERROR, "End of AC stream reached in vp6_parse_coeff\n"); av_log(s->avctx, AV_LOG_ERROR, "End of AC stream reached in vp6_parse_coeff\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }

2
tests/ref/fate/vp5
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@ -249,4 +249,4 @@
0, 243, 243, 1, 233472, 0x6f530ac6 0, 243, 243, 1, 233472, 0x6f530ac6
0, 244, 244, 1, 233472, 0x94f7466c 0, 244, 244, 1, 233472, 0x94f7466c
0, 245, 245, 1, 233472, 0xa8c1d365 0, 245, 245, 1, 233472, 0xa8c1d365
0, 246, 246, 1, 233472, 0xedcff050 0, 246, 246, 1, 233472, 0x8843293b