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swscale: replace formatConvBuffer[VOF] by allocated array.

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This allows to convert between formats of arbitrary width,
regardless of the value of VOF/VOFW.
This commit is contained in:
Ronald S. Bultje 2011-05-26 09:15:38 -04:00
parent 522d65ba25
commit 69645c021a
3 changed files with 6 additions and 7 deletions
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2
libswscale/swscale_internal.h
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@ -122,7 +122,7 @@ typedef struct SwsContext {
int chrBufIndex; ///< Index in ring buffer of the last scaled horizontal chroma line from source.
//@}
uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful
uint8_t *formatConvBuffer;
/**
* @name Horizontal and vertical filters.

5
libswscale/swscale_template.c
View File

@ -459,9 +459,10 @@ inline static void hcscale_c(SwsContext *c, uint16_t *dst, long dstWidth,
src2 += c->chrSrcOffset;
if (c->chrToYV12) {
c->chrToYV12(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW, 16);
c->chrToYV12(formatConvBuffer, buf2, src1, src2, srcW, pal);
src1= formatConvBuffer;
src2= formatConvBuffer+VOFW;
src2= buf2;
}
if (!c->hcscale_fast) {

6
libswscale/utils.c
View File

@ -790,10 +790,7 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
srcW, srcH, dstW, dstH);
return AVERROR(EINVAL);
}
if(srcW > VOFW || dstW > VOFW) {
av_log(NULL, AV_LOG_ERROR, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
return AVERROR(EINVAL);
}
FF_ALLOC_OR_GOTO(c, c->formatConvBuffer, FFALIGN(srcW, 16) * 2, fail);
if (!dstFilter) dstFilter= &dummyFilter;
if (!srcFilter) srcFilter= &dummyFilter;
@ -1507,6 +1504,7 @@ void sws_freeContext(SwsContext *c)
#endif /* HAVE_MMX */
av_freep(&c->yuvTable);
av_free(c->formatConvBuffer);
av_free(c);
}