| /* |
| * 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/imgutils.h" |
| #include "libavutil/mem.h" |
| #include "libavutil/avutil.h" |
| #include "libavutil/crc.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/lfg.h" |
| #include "swscale.h" |
| |
| /* HACK Duplicated from swscale_internal.h. |
| * Should be removed when a cleaner pixel format system exists. */ |
| #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; |
| |
| 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; |
| } |
| } |
| return ssd; |
| } |
| |
| struct Results { |
| uint64_t ssdY; |
| uint64_t ssdU; |
| uint64_t ssdV; |
| uint64_t ssdA; |
| uint32_t crc; |
| }; |
| |
| // 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, |
| struct Results *r) |
| { |
| static enum PixelFormat cur_srcFormat; |
| static int cur_srcW, cur_srcH; |
| static uint8_t *src[4]; |
| static int srcStride[4]; |
| uint8_t *dst[4] = {0}; |
| uint8_t *out[4] = {0}; |
| int dstStride[4]; |
| int i; |
| uint64_t ssdY, ssdU=0, ssdV=0, ssdA=0; |
| struct SwsContext *dstContext = NULL, *outContext = NULL; |
| uint32_t crc = 0; |
| int res = 0; |
| |
| if (cur_srcFormat != srcFormat || cur_srcW != srcW || cur_srcH != srcH) { |
| struct SwsContext *srcContext = NULL; |
| int p; |
| |
| for (p = 0; p < 4; p++) |
| av_freep(&src[p]); |
| |
| av_image_fill_linesizes(srcStride, srcFormat, srcW); |
| for (p = 0; p < 4; p++) { |
| if (srcStride[p]) |
| src[p] = av_mallocz(srcStride[p]*srcH+16); |
| if (srcStride[p] && !src[p]) { |
| perror("Malloc"); |
| res = -1; |
| |
| goto end; |
| } |
| } |
| srcContext = sws_getContext(w, h, PIX_FMT_YUVA420P, srcW, srcH, |
| srcFormat, SWS_BILINEAR, NULL, NULL, NULL); |
| if (!srcContext) { |
| fprintf(stderr, "Failed to get %s ---> %s\n", |
| av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name, |
| av_pix_fmt_descriptors[srcFormat].name); |
| res = -1; |
| |
| goto end; |
| } |
| sws_scale(srcContext, ref, refStride, 0, h, src, srcStride); |
| sws_freeContext(srcContext); |
| |
| cur_srcFormat = srcFormat; |
| cur_srcW = srcW; |
| cur_srcH = srcH; |
| } |
| |
| av_image_fill_linesizes(dstStride, dstFormat, dstW); |
| for (i=0; i<4; i++) { |
| /* 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). */ |
| /* An extra 16 bytes is being allocated because some scalers may write |
| * out of bounds. */ |
| if (dstStride[i]) |
| dst[i]= av_mallocz(dstStride[i]*dstH+16); |
| if (dstStride[i] && !dst[i]) { |
| perror("Malloc"); |
| 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", |
| av_pix_fmt_descriptors[srcFormat].name, |
| av_pix_fmt_descriptors[dstFormat].name); |
| res = -1; |
| |
| goto end; |
| } |
| |
| printf(" %s %dx%d -> %s %3dx%3d flags=%2d", |
| av_pix_fmt_descriptors[srcFormat].name, srcW, srcH, |
| av_pix_fmt_descriptors[dstFormat].name, dstW, dstH, |
| flags); |
| fflush(stdout); |
| |
| sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride); |
| |
| for (i = 0; i < 4 && dstStride[i]; i++) { |
| crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), crc, dst[i], dstStride[i] * dstH); |
| } |
| |
| if (r && crc == r->crc) { |
| ssdY = r->ssdY; |
| ssdU = r->ssdU; |
| ssdV = r->ssdV; |
| ssdA = r->ssdA; |
| } else { |
| for (i=0; i<4; i++) { |
| if (refStride[i]) |
| out[i]= av_mallocz(refStride[i]*h); |
| if (refStride[i] && !out[i]) { |
| perror("Malloc"); |
| res = -1; |
| |
| goto end; |
| } |
| } |
| outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL); |
| if (!outContext) { |
| fprintf(stderr, "Failed to get %s ---> %s\n", |
| av_pix_fmt_descriptors[dstFormat].name, |
| av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name); |
| res = -1; |
| |
| goto end; |
| } |
| 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; |
| |
| sws_freeContext(outContext); |
| |
| for (i=0; i<4; i++) { |
| if (refStride[i]) |
| av_free(out[i]); |
| } |
| } |
| |
| printf(" CRC=%08x SSD=%5"PRId64",%5"PRId64",%5"PRId64",%5"PRId64"\n", |
| crc, ssdY, ssdU, ssdV, ssdA); |
| |
| end: |
| |
| sws_freeContext(dstContext); |
| |
| for (i=0; i<4; i++) { |
| if (dstStride[i]) |
| av_free(dst[i]); |
| } |
| |
| return res; |
| } |
| |
| static void selfTest(uint8_t *ref[4], int refStride[4], int w, int h, |
| enum PixelFormat srcFormat_in, |
| enum PixelFormat dstFormat_in) |
| { |
| 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 = srcFormat_in != PIX_FMT_NONE ? srcFormat_in : 0; |
| srcFormat < PIX_FMT_NB; srcFormat++) { |
| if (!sws_isSupportedInput(srcFormat) || !sws_isSupportedOutput(srcFormat)) |
| continue; |
| |
| for (dstFormat = dstFormat_in != PIX_FMT_NONE ? dstFormat_in : 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", |
| av_pix_fmt_descriptors[srcFormat].name, |
| av_pix_fmt_descriptors[dstFormat].name); |
| fflush(stdout); |
| |
| for (k = 0; flags[k] && !res; k++) { |
| for (i = 0; dstW[i] && !res; i++) |
| for (j = 0; dstH[j] && !res; j++) |
| res = doTest(ref, refStride, w, h, |
| srcFormat, dstFormat, |
| srcW, srcH, dstW[i], dstH[j], flags[k], |
| NULL); |
| } |
| if (dstFormat_in != PIX_FMT_NONE) |
| break; |
| } |
| if (srcFormat_in != PIX_FMT_NONE) |
| break; |
| } |
| } |
| |
| static int fileTest(uint8_t *ref[4], int refStride[4], int w, int h, FILE *fp, |
| enum PixelFormat srcFormat_in, |
| enum PixelFormat dstFormat_in) |
| { |
| char buf[256]; |
| |
| while (fgets(buf, sizeof(buf), fp)) { |
| struct Results r; |
| enum PixelFormat srcFormat; |
| char srcStr[12]; |
| int srcW, srcH; |
| enum PixelFormat dstFormat; |
| char dstStr[12]; |
| int dstW, dstH; |
| int flags; |
| int ret; |
| |
| ret = sscanf(buf, " %12s %dx%d -> %12s %dx%d flags=%d CRC=%x" |
| " SSD=%"PRId64", %"PRId64", %"PRId64", %"PRId64"\n", |
| srcStr, &srcW, &srcH, dstStr, &dstW, &dstH, |
| &flags, &r.crc, &r.ssdY, &r.ssdU, &r.ssdV, &r.ssdA); |
| if (ret != 12) { |
| srcStr[0] = dstStr[0] = 0; |
| ret = sscanf(buf, "%12s -> %12s\n", srcStr, dstStr); |
| } |
| |
| srcFormat = av_get_pix_fmt(srcStr); |
| dstFormat = av_get_pix_fmt(dstStr); |
| |
| if (srcFormat == PIX_FMT_NONE || dstFormat == PIX_FMT_NONE) { |
| fprintf(stderr, "malformed input file\n"); |
| return -1; |
| } |
| if ((srcFormat_in != PIX_FMT_NONE && srcFormat_in != srcFormat) || |
| (dstFormat_in != PIX_FMT_NONE && dstFormat_in != dstFormat)) |
| continue; |
| if (ret != 12) { |
| printf("%s", buf); |
| continue; |
| } |
| |
| doTest(ref, refStride, w, h, |
| srcFormat, dstFormat, |
| srcW, srcH, dstW, dstH, flags, |
| &r); |
| } |
| |
| return 0; |
| } |
| |
| #define W 96 |
| #define H 96 |
| |
| int main(int argc, char **argv) |
| { |
| enum PixelFormat srcFormat = PIX_FMT_NONE; |
| enum PixelFormat dstFormat = PIX_FMT_NONE; |
| 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; |
| int res = -1; |
| int i; |
| |
| 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); |
| |
| for (i = 1; i < argc; i += 2) { |
| if (argv[i][0] != '-' || i+1 == argc) |
| goto bad_option; |
| if (!strcmp(argv[i], "-ref")) { |
| FILE *fp = fopen(argv[i+1], "r"); |
| if (!fp) { |
| fprintf(stderr, "could not open '%s'\n", argv[i+1]); |
| goto error; |
| } |
| res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat); |
| fclose(fp); |
| goto end; |
| } else if (!strcmp(argv[i], "-src")) { |
| srcFormat = av_get_pix_fmt(argv[i+1]); |
| if (srcFormat == PIX_FMT_NONE) { |
| fprintf(stderr, "invalid pixel format %s\n", argv[i+1]); |
| return -1; |
| } |
| } else if (!strcmp(argv[i], "-dst")) { |
| dstFormat = av_get_pix_fmt(argv[i+1]); |
| if (dstFormat == PIX_FMT_NONE) { |
| fprintf(stderr, "invalid pixel format %s\n", argv[i+1]); |
| return -1; |
| } |
| } else { |
| bad_option: |
| fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]); |
| goto error; |
| } |
| } |
| |
| selfTest(src, stride, W, H, srcFormat, dstFormat); |
| end: |
| res = 0; |
| error: |
| av_free(data); |
| |
| return res; |
| } |