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Improve swscale-example to test conversions between all the possible 

pixel formats

Originally committed as revision 19965 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Luca Abeni 2006-09-24 09:55:18 +00:00
parent 79ca4de35b
commit 87656472f4
1 changed files with 44 additions and 39 deletions
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83
libswscale/swscale-example.c
View File

@ -26,23 +26,6 @@
#include "avutil.h"
#include "swscale.h"
static int testFormat[]={
PIX_FMT_YUV410P,
PIX_FMT_YUV420P,
//IMGFMT_IYUV,
//IMGFMT_I420,
PIX_FMT_BGR555,
PIX_FMT_BGR565,
PIX_FMT_BGR24,
PIX_FMT_RGB32,
PIX_FMT_RGB24,
PIX_FMT_BGR32,
//IMGFMT_Y8,
PIX_FMT_GRAY8,
//IMGFMT_YUY2,
PIX_FMT_NONE
};
static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h){
int x,y;
uint64_t ssd=0;
@ -62,7 +45,7 @@ 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 void doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat,
static int doTest(uint8_t *ref[3], int refStride[3], 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];
@ -71,7 +54,9 @@ static void doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcForma
int i;
uint64_t ssdY, ssdU, ssdV;
struct SwsContext *srcContext, *dstContext, *outContext;
int res;
res = 0;
for(i=0; i<3; i++){
// avoid stride % bpp != 0
if(srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24)
@ -89,16 +74,38 @@ static void doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcForma
out[i]= (uint8_t*) malloc(refStride[i]*h);
if ((src[i] == NULL) || (dst[i] == NULL) || (out[i] == NULL)) {
perror("Malloc");
res = -1;
goto end;
}
}
dstContext = outContext = NULL;
srcContext= sws_getContext(w, h, PIX_FMT_YUV420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
if (srcContext == NULL) {
fprintf(stderr, "Failed to get %s ---> %s\n",
sws_format_name(PIX_FMT_YUV420P),
sws_format_name(srcFormat));
res = -1;
goto end;
}
dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
if (dstContext == NULL) {
fprintf(stderr, "Failed to get %s ---> %s\n",
sws_format_name(srcFormat),
sws_format_name(dstFormat));
res = -1;
goto end;
}
outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
if(srcContext==NULL ||dstContext==NULL ||outContext==NULL){
printf("Failed allocating swsContext\n");
if (outContext == NULL) {
fprintf(stderr, "Failed to get %s ---> %s\n",
sws_format_name(dstFormat),
sws_format_name(PIX_FMT_YUV420P));
res = -1;
goto end;
}
// printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
@ -141,13 +148,8 @@ static void doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcForma
free(dst[i]);
free(out[i]);
}
}
void mp_msg( int x, int y, const char *format, ... ){
va_list va;
va_start(va, format);
vfprintf(stderr, format, va);
va_end(va);
return res;
}
void fast_memcpy(void *a, void *b, int s){ //FIXME
@ -155,28 +157,31 @@ void fast_memcpy(void *a, void *b, int s){ //FIXME
}
static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
int srcFormat, dstFormat, srcFormatIndex, dstFormatIndex;
enum PixelFormat srcFormat, dstFormat;
int srcW, srcH, dstW, dstH;
int flags;
for(srcFormatIndex=0; ;srcFormatIndex++){
srcFormat= testFormat[srcFormatIndex];
if(srcFormat == PIX_FMT_NONE) break;
for(dstFormatIndex=0; ;dstFormatIndex++){
dstFormat= testFormat[dstFormatIndex];
if(dstFormat == PIX_FMT_NONE) break;
// if(!isSupportedOut(dstFormat)) continue;
printf("%s -> %s\n",
sws_format_name(srcFormat),
sws_format_name(dstFormat));
for(srcFormat = 0; srcFormat < PIX_FMT_NB; srcFormat++) {
for(dstFormat = 0; dstFormat < PIX_FMT_NB; dstFormat++) {
printf("%s -> %s\n",
sws_format_name(srcFormat),
sws_format_name(dstFormat));
srcW= w;
srcH= h;
for(dstW=w - w/3; dstW<= 4*w/3; dstW+= w/3){
for(dstH=h - h/3; dstH<= 4*h/3; dstH+= h/3){
for(flags=1; flags<33; flags*=2)
doTest(src, stride, w, h, srcFormat, dstFormat,
for(flags=1; flags<33; flags*=2) {
int res;
res = doTest(src, stride, w, h, srcFormat, dstFormat,
srcW, srcH, dstW, dstH, flags);
if (res < 0) {
dstW = 4 * w / 3;
dstH = 4 * h / 3;
flags = 33;
}
}
}
}
}