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swscale: Check memory allocation

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Bug-Id: CID 1267890
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Federico Tomassetti 2015-03-21 10:45:01 +00:00 committed by Luca Barbato
parent c28ed1d743
commit 7ebb302229
1 changed files with 14 additions and 8 deletions
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22
libswscale/utils.c
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@ -1382,17 +1382,13 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
filter->chrV = sws_getIdentityVec();
}
if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV) {
sws_freeVec(filter->lumH);
sws_freeVec(filter->lumV);
sws_freeVec(filter->chrH);
sws_freeVec(filter->chrV);
av_freep(&filter);
return NULL;
}
if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV)
goto fail;
if (chromaSharpen != 0.0) {
SwsVector *id = sws_getIdentityVec();
if (!id)
goto fail;
sws_scaleVec(filter->chrH, -chromaSharpen);
sws_scaleVec(filter->chrV, -chromaSharpen);
sws_addVec(filter->chrH, id);
@ -1402,6 +1398,8 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
if (lumaSharpen != 0.0) {
SwsVector *id = sws_getIdentityVec();
if (!id)
goto fail;
sws_scaleVec(filter->lumH, -lumaSharpen);
sws_scaleVec(filter->lumV, -lumaSharpen);
sws_addVec(filter->lumH, id);
@ -1426,6 +1424,14 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
return filter;
fail:
sws_freeVec(filter->lumH);
sws_freeVec(filter->lumV);
sws_freeVec(filter->chrH);
sws_freeVec(filter->chrV);
av_freep(&filter);
return NULL;
}
SwsVector *sws_allocVec(int length)