[SCM] libav/experimental: swscale-example: Check for Gray formats.
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 16:49:58 UTC 2013
The following commit has been merged in the experimental branch:
commit f5a9c4ee50ce5d51c8f7f0f23f63f76bbf40a9a1
Author: Ramiro Polla <ramiro.polla at gmail.com>
Date: Thu Aug 13 11:33:18 2009 +0000
swscale-example: Check for Gray formats.
Originally committed as revision 29503 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
diff --git a/libswscale/swscale-example.c b/libswscale/swscale-example.c
index f90e2f3..89fdf5f 100644
--- a/libswscale/swscale-example.c
+++ b/libswscale/swscale-example.c
@@ -32,6 +32,11 @@
/* HACK Duplicated from swscale_internal.h.
* Should be removed when a cleaner pixel format system exists. */
const char *sws_format_name(enum PixelFormat format);
+#define isGray(x) ( \
+ (x)==PIX_FMT_GRAY8 \
+ || (x)==PIX_FMT_GRAY16BE \
+ || (x)==PIX_FMT_GRAY16LE \
+ )
#define isALPHA(x) ( \
(x)==PIX_FMT_BGR32 \
|| (x)==PIX_FMT_BGR32_1 \
@@ -66,7 +71,7 @@ static int doTest(uint8_t *ref[4], int refStride[4], int w, int h, int srcFormat
uint8_t *out[4] = {0};
int srcStride[4], dstStride[4];
int i;
- uint64_t ssdY, ssdU, ssdV, ssdA=0;
+ uint64_t ssdY, ssdU=0, ssdV=0, ssdA=0;
struct SwsContext *srcContext = NULL, *dstContext = NULL,
*outContext = NULL;
int res;
@@ -134,13 +139,14 @@ static int doTest(uint8_t *ref[4], int refStride[4], int w, int h, int srcFormat
sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
+ if (!isGray(srcFormat) && !isGray(dstFormat)) {
+ //FIXME check that output is really gray
ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
+ }
if (isALPHA(srcFormat) && isALPHA(dstFormat))
ssdA= getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
- if (srcFormat == PIX_FMT_GRAY8 || dstFormat==PIX_FMT_GRAY8) ssdU=ssdV=0; //FIXME check that output is really gray
-
ssdY/= w*h;
ssdU/= w*h/4;
ssdV/= w*h/4;
--
Libav/FFmpeg packaging
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