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authorClément Bœsch <clement@stupeflix.com>2016-06-22 13:44:29 +0200
committerClément Bœsch <clement@stupeflix.com>2016-06-22 13:44:34 +0200
commit5d48e4eafa6c4559683892b8638d10508125f3cf (patch)
tree0d5becbd08d6ae319497dd32cbe9b67f4670cc5e /libswscale/tests
parent989a614b707dcff8abdffe28dc24ec64a83b2837 (diff)
parenta6a750c7ef240b72ce01e9653343a0ddf247d196 (diff)
downloadffmpeg-5d48e4eafa6c4559683892b8638d10508125f3cf.tar.gz
Merge commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196'
* commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196': tests: Move all test programs to a subdirectory Merged-by: Clément Bœsch <clement@stupeflix.com>
Diffstat (limited to 'libswscale/tests')
-rw-r--r--libswscale/tests/.gitignore2
-rw-r--r--libswscale/tests/colorspace.c171
-rw-r--r--libswscale/tests/swscale.c427
3 files changed, 600 insertions, 0 deletions
diff --git a/libswscale/tests/.gitignore b/libswscale/tests/.gitignore
new file mode 100644
index 0000000000..0ac3691ecd
--- /dev/null
+++ b/libswscale/tests/.gitignore
@@ -0,0 +1,2 @@
+/colorspace
+/swscale
diff --git a/libswscale/tests/colorspace.c b/libswscale/tests/colorspace.c
new file mode 100644
index 0000000000..d1eddc82bf
--- /dev/null
+++ b/libswscale/tests/colorspace.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2002 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 <string.h> /* for memset() */
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include "libavutil/mem.h"
+
+#include "libswscale/swscale.h"
+#include "libswscale/rgb2rgb.h"
+
+#define SIZE 1000
+#define srcByte 0x55
+#define dstByte 0xBB
+
+#define FUNC(s, d, n) { s, d, #n, n }
+
+int main(int argc, char **argv)
+{
+ int i, funcNum;
+ uint8_t *srcBuffer = av_malloc(SIZE);
+ uint8_t *dstBuffer = av_malloc(SIZE);
+ int failedNum = 0;
+ int passedNum = 0;
+
+ if (!srcBuffer || !dstBuffer)
+ return -1;
+
+ av_log(NULL, AV_LOG_INFO, "memory corruption test ...\n");
+ ff_sws_rgb2rgb_init();
+
+ for (funcNum = 0; ; funcNum++) {
+ struct func_info_s {
+ int src_bpp;
+ int dst_bpp;
+ const char *name;
+ void (*func)(const uint8_t *src, uint8_t *dst, int src_size);
+ } func_info[] = {
+ FUNC(2, 2, rgb12to15),
+ FUNC(2, 2, rgb15to16),
+ FUNC(2, 3, rgb15to24),
+ FUNC(2, 4, rgb15to32),
+ FUNC(2, 3, rgb16to24),
+ FUNC(2, 4, rgb16to32),
+ FUNC(3, 2, rgb24to15),
+ FUNC(3, 2, rgb24to16),
+ FUNC(3, 4, rgb24to32),
+ FUNC(4, 2, rgb32to15),
+ FUNC(4, 2, rgb32to16),
+ FUNC(4, 3, rgb32to24),
+ FUNC(2, 2, rgb16to15),
+ FUNC(2, 2, rgb12tobgr12),
+ FUNC(2, 2, rgb15tobgr15),
+ FUNC(2, 2, rgb15tobgr16),
+ FUNC(2, 3, rgb15tobgr24),
+ FUNC(2, 4, rgb15tobgr32),
+ FUNC(2, 2, rgb16tobgr15),
+ FUNC(2, 2, rgb16tobgr16),
+ FUNC(2, 3, rgb16tobgr24),
+ FUNC(2, 4, rgb16tobgr32),
+ FUNC(3, 2, rgb24tobgr15),
+ FUNC(3, 2, rgb24tobgr16),
+ FUNC(3, 3, rgb24tobgr24),
+ FUNC(3, 4, rgb24tobgr32),
+ FUNC(4, 2, rgb32tobgr15),
+ FUNC(4, 2, rgb32tobgr16),
+ FUNC(4, 3, rgb32tobgr24),
+ FUNC(4, 4, shuffle_bytes_2103), /* rgb32tobgr32 */
+ FUNC(6, 6, rgb48tobgr48_nobswap),
+ FUNC(6, 6, rgb48tobgr48_bswap),
+ FUNC(8, 6, rgb64to48_nobswap),
+ FUNC(8, 6, rgb64to48_bswap),
+ FUNC(8, 6, rgb64tobgr48_nobswap),
+ FUNC(8, 6, rgb64tobgr48_bswap),
+ FUNC(0, 0, NULL)
+ };
+ int width;
+ int failed = 0;
+ int srcBpp = 0;
+ int dstBpp = 0;
+
+ if (!func_info[funcNum].func)
+ break;
+
+ av_log(NULL, AV_LOG_INFO, ".");
+ memset(srcBuffer, srcByte, SIZE);
+
+ for (width = 63; width > 0; width--) {
+ int dstOffset;
+ for (dstOffset = 128; dstOffset < 196; dstOffset += 4) {
+ int srcOffset;
+ memset(dstBuffer, dstByte, SIZE);
+
+ for (srcOffset = 128; srcOffset < 196; srcOffset += 4) {
+ uint8_t *src = srcBuffer + srcOffset;
+ uint8_t *dst = dstBuffer + dstOffset;
+ const char *name = NULL;
+
+ // don't fill the screen with shit ...
+ if (failed)
+ break;
+
+ srcBpp = func_info[funcNum].src_bpp;
+ dstBpp = func_info[funcNum].dst_bpp;
+ name = func_info[funcNum].name;
+
+ func_info[funcNum].func(src, dst, width * srcBpp);
+
+ if (!srcBpp)
+ break;
+
+ for (i = 0; i < SIZE; i++) {
+ if (srcBuffer[i] != srcByte) {
+ av_log(NULL, AV_LOG_INFO,
+ "src damaged at %d w:%d src:%d dst:%d %s\n",
+ i, width, srcOffset, dstOffset, name);
+ failed = 1;
+ break;
+ }
+ }
+ for (i = 0; i < dstOffset; i++) {
+ if (dstBuffer[i] != dstByte) {
+ av_log(NULL, AV_LOG_INFO,
+ "dst damaged at %d w:%d src:%d dst:%d %s\n",
+ i, width, srcOffset, dstOffset, name);
+ failed = 1;
+ break;
+ }
+ }
+ for (i = dstOffset + width * dstBpp; i < SIZE; i++) {
+ if (dstBuffer[i] != dstByte) {
+ av_log(NULL, AV_LOG_INFO,
+ "dst damaged at %d w:%d src:%d dst:%d %s\n",
+ i, width, srcOffset, dstOffset, name);
+ failed = 1;
+ break;
+ }
+ }
+ }
+ }
+ }
+ if (failed)
+ failedNum++;
+ else if (srcBpp)
+ passedNum++;
+ }
+
+ av_log(NULL, AV_LOG_INFO,
+ "\n%d converters passed, %d converters randomly overwrote memory\n",
+ passedNum, failedNum);
+ return failedNum;
+}
diff --git a/libswscale/tests/swscale.c b/libswscale/tests/swscale.c
new file mode 100644
index 0000000000..58c211453a
--- /dev/null
+++ b/libswscale/tests/swscale.c
@@ -0,0 +1,427 @@
+/*
+ * 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;
+}