This allows to convert between formats of arbitrary width,
regardless of the value of VOF/VOFW.
---
libswscale/swscale_internal.h | 2 +-
libswscale/swscale_template.c | 4 ++--
libswscale/utils.c | 6 ++----
3 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 5f2ff94..1e52ea2 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -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.
diff --git a/libswscale/swscale_template.c b/libswscale/swscale_template.c
index 49d594a..70bd2fb 100644
--- a/libswscale/swscale_template.c
+++ b/libswscale/swscale_template.c
@@ -461,9 +461,9 @@ 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);
+ c->chrToYV12(formatConvBuffer, formatConvBuffer+srcW, src1, src2,
srcW, pal);
src1= formatConvBuffer;
- src2= formatConvBuffer+VOFW;
+ src2= formatConvBuffer+srcW;
}
if (!c->hcscale_fast) {
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 29fc975..a531346 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -791,10 +791,7 @@ 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, srcW * 2, fail);
if (!dstFilter) dstFilter= &dummyFilter;
if (!srcFilter) srcFilter= &dummyFilter;
@@ -1508,6 +1505,7 @@ void sws_freeContext(SwsContext *c)
#endif /* HAVE_MMX */
av_freep(&c->yuvTable);
+ av_free(c->formatConvBuffer);
av_free(c);
}
--
1.7.4.4
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