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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>
This commit is contained in:
Michael Niedermayer
2017-02-24 21:05:33 +01:00
parent 5d81616be3
commit 513a349439
3 changed files with 3 additions and 3 deletions
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2
libavcodec/vp5.c
View File

@@ -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