diff options
author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-01-27 00:25:23 +0000 |
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committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-01-27 00:25:23 +0000 |
commit | b51de6d8c71ff087e006c3a9613f6cb055aea687 (patch) | |
tree | fb1a85344799ef20703843d1ca73ad38ed2999b6 /libswscale/swscale-example.c | |
parent | d19a046ebb9dccb9ff025e2a8918a0f7e54dd2db (diff) |
Rename swscale-example to swscale-test, to better reflect the intended
use of the program.
Originally committed as revision 30439 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
Diffstat (limited to 'libswscale/swscale-example.c')
-rw-r--r-- | libswscale/swscale-example.c | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/libswscale/swscale-example.c b/libswscale/swscale-example.c deleted file mode 100644 index a812ee5963..0000000000 --- a/libswscale/swscale-example.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <inttypes.h> -#include <stdarg.h> - -#undef HAVE_AV_CONFIG_H -#include "libavutil/mem.h" -#include "libavutil/avutil.h" -#include "libavutil/lfg.h" -#include "swscale.h" - -/* 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 hasChroma(x) (!( \ - isGray(x) \ - || (x)==PIX_FMT_MONOBLACK \ - || (x)==PIX_FMT_MONOWHITE \ - )) -#define isALPHA(x) ( \ - (x)==PIX_FMT_BGR32 \ - || (x)==PIX_FMT_BGR32_1 \ - || (x)==PIX_FMT_RGB32 \ - || (x)==PIX_FMT_RGB32_1 \ - || (x)==PIX_FMT_YUVA420P \ - ) - -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; - -//printf("%d %d\n", w, h); - - for (y=0; y<h; y++) { - for (x=0; x<w; x++) { - int d= src1[x + y*stride1] - src2[x + y*stride2]; - ssd+= d*d; -//printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 ); - } -//printf("\n"); - } - return ssd; -} - -// test by ref -> src -> dst -> out & compare out against ref -// ref & out are YV12 -static int doTest(uint8_t *ref[4], int refStride[4], int w, int h, - enum PixelFormat srcFormat, enum PixelFormat dstFormat, - int srcW, int srcH, int dstW, int dstH, int flags) -{ - uint8_t *src[4] = {0}; - uint8_t *dst[4] = {0}; - uint8_t *out[4] = {0}; - int srcStride[4], dstStride[4]; - int i; - uint64_t ssdY, ssdU=0, ssdV=0, ssdA=0; - struct SwsContext *srcContext = NULL, *dstContext = NULL, - *outContext = NULL; - int res; - - res = 0; - for (i=0; i<4; i++) { - // avoid stride % bpp != 0 - if (srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24) - srcStride[i]= srcW*3; - else if (srcFormat==PIX_FMT_RGB48BE || srcFormat==PIX_FMT_RGB48LE) - srcStride[i]= srcW*6; - else - srcStride[i]= srcW*4; - - if (dstFormat==PIX_FMT_RGB24 || dstFormat==PIX_FMT_BGR24) - dstStride[i]= dstW*3; - else if (dstFormat==PIX_FMT_RGB48BE || dstFormat==PIX_FMT_RGB48LE) - dstStride[i]= dstW*6; - else - dstStride[i]= dstW*4; - - /* Image buffers passed into libswscale can be allocated any way you - * prefer, as long as they're aligned enough for the architecture, and - * they're freed appropriately (such as using av_free for buffers - * allocated with av_malloc). */ - src[i]= av_malloc(srcStride[i]*srcH); - dst[i]= av_malloc(dstStride[i]*dstH); - out[i]= av_malloc(refStride[i]*h); - if (!src[i] || !dst[i] || !out[i]) { - perror("Malloc"); - res = -1; - - goto end; - } - } - - 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_YUVA420P), - sws_format_name(srcFormat)); - res = -1; - - goto end; - } - dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL); - if (!dstContext) { - 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_YUVA420P, flags, NULL, NULL, NULL); - if (!outContext) { - fprintf(stderr, "Failed to get %s ---> %s\n", - sws_format_name(dstFormat), - sws_format_name(PIX_FMT_YUVA420P)); - res = -1; - - goto end; - } -// printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2], -// (int)src[0], (int)src[1], (int)src[2]); - - sws_scale(srcContext, ref, refStride, 0, h , src, srcStride); - sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride); - sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride); - - ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h); - if (hasChroma(srcFormat) && hasChroma(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); - - ssdY/= w*h; - ssdU/= w*h/4; - ssdV/= w*h/4; - ssdA/= w*h; - - printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5"PRId64",%5"PRId64",%5"PRId64",%5"PRId64"\n", - sws_format_name(srcFormat), srcW, srcH, - sws_format_name(dstFormat), dstW, dstH, - flags, ssdY, ssdU, ssdV, ssdA); - fflush(stdout); - -end: - - sws_freeContext(srcContext); - sws_freeContext(dstContext); - sws_freeContext(outContext); - - for (i=0; i<4; i++) { - av_free(src[i]); - av_free(dst[i]); - av_free(out[i]); - } - - return res; -} - -static void selfTest(uint8_t *ref[4], int refStride[4], int w, int h) -{ - const int flags[] = { SWS_FAST_BILINEAR, - SWS_BILINEAR, SWS_BICUBIC, - SWS_X , SWS_POINT , SWS_AREA, 0 }; - const int srcW = w; - const int srcH = h; - const int dstW[] = { srcW - srcW/3, srcW, srcW + srcW/3, 0 }; - const int dstH[] = { srcH - srcH/3, srcH, srcH + srcH/3, 0 }; - enum PixelFormat srcFormat, dstFormat; - - for (srcFormat = 0; srcFormat < PIX_FMT_NB; srcFormat++) { - if (!sws_isSupportedInput(srcFormat) || !sws_isSupportedOutput(srcFormat)) - continue; - - for (dstFormat = 0; dstFormat < PIX_FMT_NB; dstFormat++) { - int i, j, k; - int res = 0; - - if (!sws_isSupportedInput(dstFormat) || !sws_isSupportedOutput(dstFormat)) - continue; - - printf("%s -> %s\n", - sws_format_name(srcFormat), - sws_format_name(dstFormat)); - fflush(stdout); - - for (i = 0; dstW[i] && !res; i++) - for (j = 0; dstH[j] && !res; j++) - for (k = 0; flags[k] && !res; k++) - res = doTest(ref, refStride, w, h, srcFormat, dstFormat, - srcW, srcH, dstW[i], dstH[j], flags[k]); - } - } -} - -#define W 96 -#define H 96 - -int main(int argc, char **argv) -{ - uint8_t *rgb_data = av_malloc (W*H*4); - uint8_t *rgb_src[3]= {rgb_data, NULL, NULL}; - int rgb_stride[3]={4*W, 0, 0}; - uint8_t *data = av_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; - - if (!rgb_data || !data) - return -1; - - sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL); - - av_lfg_init(&rand, 1); - - for (y=0; y<H; y++) { - for (x=0; x<W*4; x++) { - rgb_data[ x + y*4*W]= av_lfg_get(&rand); - } - } - sws_scale(sws, rgb_src, rgb_stride, 0, H, src, stride); - sws_freeContext(sws); - av_free(rgb_data); - - selfTest(src, stride, W, H); - av_free(data); - - return 0; -} |