| /* |
| * Copyright (C) 2003-2011 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 "libswscale/swscale.h" |
| |
| /* HACK Duplicated from swscale_internal.h. |
| * Should be removed when a cleaner pixel format system exists. */ |
| #define isGray(x) \ |
| ((x) == AV_PIX_FMT_GRAY8 || \ |
| (x) == AV_PIX_FMT_YA8 || \ |
| (x) == AV_PIX_FMT_GRAY16BE || \ |
| (x) == AV_PIX_FMT_GRAY16LE || \ |
| (x) == AV_PIX_FMT_YA16BE || \ |
| (x) == AV_PIX_FMT_YA16LE) |
| #define hasChroma(x) \ |
| (!(isGray(x) || \ |
| (x) == AV_PIX_FMT_MONOBLACK || \ |
| (x) == AV_PIX_FMT_MONOWHITE)) |
| #define isALPHA(x) \ |
| ((x) == AV_PIX_FMT_BGR32 || \ |
| (x) == AV_PIX_FMT_BGR32_1 || \ |
| (x) == AV_PIX_FMT_RGB32 || \ |
| (x) == AV_PIX_FMT_RGB32_1 || \ |
| (x) == AV_PIX_FMT_YUVA420P) |
| |
| static uint64_t getSSD(const uint8_t *src1, const 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 AVPixelFormat srcFormat, enum AVPixelFormat dstFormat, |
| int srcW, int srcH, int dstW, int dstH, int flags, |
| struct Results *r) |
| { |
| const AVPixFmtDescriptor *desc_yuva420p = av_pix_fmt_desc_get(AV_PIX_FMT_YUVA420P); |
| const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(srcFormat); |
| const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(dstFormat); |
| static enum AVPixelFormat 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] = {0}; |
| 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]); |
| |
| res = av_image_fill_linesizes(srcStride, srcFormat, srcW); |
| if (res < 0) { |
| fprintf(stderr, "av_image_fill_linesizes failed\n"); |
| goto end; |
| } |
| for (p = 0; p < 4; p++) { |
| srcStride[p] = FFALIGN(srcStride[p], 16); |
| 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, AV_PIX_FMT_YUVA420P, srcW, srcH, |
| srcFormat, SWS_BILINEAR, NULL, NULL, NULL); |
| if (!srcContext) { |
| fprintf(stderr, "Failed to get %s ---> %s\n", |
| desc_yuva420p->name, |
| desc_src->name); |
| res = -1; |
| goto end; |
| } |
| sws_scale(srcContext, (const uint8_t * const*)ref, refStride, 0, h, src, srcStride); |
| sws_freeContext(srcContext); |
| |
| cur_srcFormat = srcFormat; |
| cur_srcW = srcW; |
| cur_srcH = srcH; |
| } |
| |
| res = av_image_fill_linesizes(dstStride, dstFormat, dstW); |
| if (res < 0) { |
| fprintf(stderr, "av_image_fill_linesizes failed\n"); |
| goto end; |
| } |
| |
| 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. */ |
| dstStride[i] = FFALIGN(dstStride[i], 16); |
| 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", |
| desc_src->name, desc_dst->name); |
| res = -1; |
| goto end; |
| } |
| |
| printf(" %s %dx%d -> %s %3dx%3d flags=%2d", |
| desc_src->name, srcW, srcH, |
| desc_dst->name, dstW, dstH, |
| flags); |
| fflush(stdout); |
| |
| sws_scale(dstContext, (const uint8_t * const*)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++) { |
| refStride[i] = FFALIGN(refStride[i], 16); |
| 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, |
| AV_PIX_FMT_YUVA420P, SWS_BILINEAR, |
| NULL, NULL, NULL); |
| if (!outContext) { |
| fprintf(stderr, "Failed to get %s ---> %s\n", |
| desc_dst->name, |
| desc_yuva420p->name); |
| res = -1; |
| goto end; |
| } |
| sws_scale(outContext, (const uint8_t * const*)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 AVPixelFormat srcFormat_in, |
| enum AVPixelFormat 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 AVPixelFormat srcFormat, dstFormat; |
| const AVPixFmtDescriptor *desc_src, *desc_dst; |
| |
| for (srcFormat = srcFormat_in != AV_PIX_FMT_NONE ? srcFormat_in : 0; |
| srcFormat < AV_PIX_FMT_NB; srcFormat++) { |
| if (!sws_isSupportedInput(srcFormat) || |
| !sws_isSupportedOutput(srcFormat)) |
| continue; |
| |
| desc_src = av_pix_fmt_desc_get(srcFormat); |
| |
| for (dstFormat = dstFormat_in != AV_PIX_FMT_NONE ? dstFormat_in : 0; |
| dstFormat < AV_PIX_FMT_NB; dstFormat++) { |
| int i, j, k; |
| int res = 0; |
| |
| if (!sws_isSupportedInput(dstFormat) || |
| !sws_isSupportedOutput(dstFormat)) |
| continue; |
| |
| desc_dst = av_pix_fmt_desc_get(dstFormat); |
| |
| printf("%s -> %s\n", desc_src->name, desc_dst->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 != AV_PIX_FMT_NONE) |
| break; |
| } |
| if (srcFormat_in != AV_PIX_FMT_NONE) |
| break; |
| } |
| } |
| |
| static int fileTest(uint8_t *ref[4], int refStride[4], int w, int h, FILE *fp, |
| enum AVPixelFormat srcFormat_in, |
| enum AVPixelFormat dstFormat_in) |
| { |
| char buf[256]; |
| |
| while (fgets(buf, sizeof(buf), fp)) { |
| struct Results r; |
| enum AVPixelFormat srcFormat; |
| char srcStr[12]; |
| int srcW, srcH; |
| enum AVPixelFormat 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=%"SCNd64 ", %"SCNd64 ", %"SCNd64 ", %"SCNd64 "\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 == AV_PIX_FMT_NONE || dstFormat == AV_PIX_FMT_NONE || |
| srcW > 8192U || srcH > 8192U || dstW > 8192U || dstH > 8192U) { |
| fprintf(stderr, "malformed input file\n"); |
| return -1; |
| } |
| if ((srcFormat_in != AV_PIX_FMT_NONE && srcFormat_in != srcFormat) || |
| (dstFormat_in != AV_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 AVPixelFormat srcFormat = AV_PIX_FMT_NONE; |
| enum AVPixelFormat dstFormat = AV_PIX_FMT_NONE; |
| uint8_t *rgb_data = av_malloc(W * H * 4); |
| const uint8_t * const rgb_src[4] = { rgb_data, NULL, NULL, NULL }; |
| int rgb_stride[4] = { 4 * W, 0, 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; |
| FILE *fp = NULL; |
| |
| if (!rgb_data || !data) |
| return -1; |
| |
| for (i = 1; i < argc; i += 2) { |
| if (argv[i][0] != '-' || i + 1 == argc) |
| goto bad_option; |
| if (!strcmp(argv[i], "-ref")) { |
| fp = fopen(argv[i + 1], "r"); |
| if (!fp) { |
| fprintf(stderr, "could not open '%s'\n", argv[i + 1]); |
| goto error; |
| } |
| } else if (!strcmp(argv[i], "-src")) { |
| srcFormat = av_get_pix_fmt(argv[i + 1]); |
| if (srcFormat == AV_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 == AV_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; |
| } |
| } |
| |
| sws = sws_getContext(W / 12, H / 12, AV_PIX_FMT_RGB32, W, H, |
| AV_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 / 12, src, stride); |
| sws_freeContext(sws); |
| av_free(rgb_data); |
| |
| if(fp) { |
| res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat); |
| fclose(fp); |
| } else { |
| selfTest(src, stride, W, H, srcFormat, dstFormat); |
| res = 0; |
| } |
| error: |
| av_free(data); |
| |
| return res; |
| } |