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Code Issues Releases Activity

Also test the alpha channel in swscale-example

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Originally committed as revision 29013 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Cédric Schieli 2009-03-20 14:17:20 +00:00
parent 6268f55be5
commit 110f147a85
1 changed files with 22 additions and 19 deletions
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41
libswscale/swscale-example.c
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@ -49,20 +49,20 @@ static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, i
// test by ref -> src -> dst -> out & compare out against ref
// ref & out are YV12
static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat,
static int doTest(uint8_t *ref[4], int refStride[4], int w, int h, int srcFormat, int dstFormat,
int srcW, int srcH, int dstW, int dstH, int flags){
uint8_t *src[3];
uint8_t *dst[3];
uint8_t *out[3];
int srcStride[3], dstStride[3];
uint8_t *src[4];
uint8_t *dst[4];
uint8_t *out[4];
int srcStride[4], dstStride[4];
int i;
uint64_t ssdY, ssdU, ssdV;
uint64_t ssdY, ssdU, ssdV, ssdA=0;
struct SwsContext *srcContext = NULL, *dstContext = NULL,
*outContext = NULL;
int res;
res = 0;
for (i=0; i<3; i++){
for (i=0; i<4; i++){
// avoid stride % bpp != 0
if (srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24)
srcStride[i]= srcW*3;
@ -85,10 +85,10 @@ static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat
}
}
srcContext= sws_getContext(w, h, PIX_FMT_YUV420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
srcContext= sws_getContext(w, h, PIX_FMT_YUVA420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
if (!srcContext) {
fprintf(stderr, "Failed to get %s ---> %s\n",
sws_format_name(PIX_FMT_YUV420P),
sws_format_name(PIX_FMT_YUVA420P),
sws_format_name(srcFormat));
res = -1;
@ -103,11 +103,11 @@ static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat
goto end;
}
outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUVA420P, flags, NULL, NULL, NULL);
if (!outContext) {
fprintf(stderr, "Failed to get %s ---> %s\n",
sws_format_name(dstFormat),
sws_format_name(PIX_FMT_YUV420P));
sws_format_name(PIX_FMT_YUVA420P));
res = -1;
goto end;
@ -122,17 +122,20 @@ static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat
ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
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;
ssdA/= w*h;
printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld\n",
printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld,%5lld\n",
sws_format_name(srcFormat), srcW, srcH,
sws_format_name(dstFormat), dstW, dstH,
flags, ssdY, ssdU, ssdV);
flags, ssdY, ssdU, ssdV, ssdA);
fflush(stdout);
end:
@ -141,7 +144,7 @@ static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat
sws_freeContext(dstContext);
sws_freeContext(outContext);
for (i=0; i<3; i++){
for (i=0; i<4; i++){
free(src[i]);
free(dst[i]);
free(out[i]);
@ -150,7 +153,7 @@ static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat
return res;
}
static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
static void selfTest(uint8_t *src[4], int stride[4], int w, int h){
enum PixelFormat srcFormat, dstFormat;
int srcW, srcH, dstW, dstH;
int flags;
@ -190,14 +193,14 @@ int main(int argc, char **argv){
uint8_t *rgb_data = malloc (W*H*4);
uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
int rgb_stride[3]={4*W, 0, 0};
uint8_t *data = malloc (3*W*H);
uint8_t *src[3]= {data, data+W*H, data+W*H*2};
int stride[3]={W, W, W};
uint8_t *data = malloc (4*W*H);
uint8_t *src[4]= {data, data+W*H, data+W*H*2, data+W*H*3};
int stride[4]={W, W, W, W};
int x, y;
struct SwsContext *sws;
AVLFG rand;
sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUV420P, 2, NULL, NULL, NULL);
sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUVA420P, 2, NULL, NULL, NULL);
av_lfg_init(&rand, 1);