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swscale/utils: Forward luma range to the cascaded context for alphablending

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-09-10 17:03:11 +02:00
parent a4d17c9a70
commit 21c7272859
1 changed files with 10 additions and 3 deletions
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13
libswscale/utils.c
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@ -1500,11 +1500,18 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
if (ret < 0) if (ret < 0)
return ret; return ret;
c->cascaded_context[1] = sws_getContext(srcW, srcH, tmpFormat, c->cascaded_context[1] = sws_alloc_set_opts(srcW, srcH, tmpFormat,
dstW, dstH, dstFormat, dstW, dstH, dstFormat,
flags, srcFilter, dstFilter, c->param); flags, c->param);
if (!c->cascaded_context[1]) if (!c->cascaded_context[1])
return -1; return -1;
c->cascaded_context[1]->srcRange = c->srcRange;
c->cascaded_context[1]->dstRange = c->dstRange;
ret = sws_init_context(c->cascaded_context[1], srcFilter , dstFilter);
if (ret < 0)
return ret;
return 0; return 0;
} }
} }