mirror of https://git.ffmpeg.org/ffmpeg.git
417 lines
14 KiB
C
417 lines
14 KiB
C
/*
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* Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <stdarg.h>
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#undef HAVE_AV_CONFIG_H
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#include "libavutil/imgutils.h"
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#include "libavutil/mem.h"
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#include "libavutil/avutil.h"
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#include "libavutil/crc.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/lfg.h"
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#include "libswscale/swscale.h"
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/* HACK Duplicated from swscale_internal.h.
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* Should be removed when a cleaner pixel format system exists. */
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#define isGray(x) \
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((x) == AV_PIX_FMT_GRAY8 || \
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(x) == AV_PIX_FMT_YA8 || \
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(x) == AV_PIX_FMT_GRAY16BE || \
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(x) == AV_PIX_FMT_GRAY16LE || \
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(x) == AV_PIX_FMT_YA16BE || \
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(x) == AV_PIX_FMT_YA16LE)
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#define hasChroma(x) \
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(!(isGray(x) || \
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(x) == AV_PIX_FMT_MONOBLACK || \
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(x) == AV_PIX_FMT_MONOWHITE))
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#define isALPHA(x) \
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((x) == AV_PIX_FMT_BGR32 || \
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(x) == AV_PIX_FMT_BGR32_1 || \
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(x) == AV_PIX_FMT_RGB32 || \
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(x) == AV_PIX_FMT_RGB32_1 || \
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(x) == AV_PIX_FMT_YUVA420P)
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static uint64_t getSSD(const uint8_t * const src1, const uint8_t * const src2,
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int stride1, int stride2, int w, int h)
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{
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int x, y;
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uint64_t ssd = 0;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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int d = src1[x + y * stride1] - src2[x + y * stride2];
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ssd += d * d;
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}
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}
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return ssd;
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}
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struct Results {
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uint64_t ssdY;
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uint64_t ssdU;
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uint64_t ssdV;
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uint64_t ssdA;
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uint32_t crc;
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};
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// test by ref -> src -> dst -> out & compare out against ref
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// ref & out are YV12
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static int doTest(const uint8_t * const ref[4], int refStride[4], int w, int h,
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enum AVPixelFormat srcFormat, enum AVPixelFormat dstFormat,
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int srcW, int srcH, int dstW, int dstH, int flags,
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struct Results *r)
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{
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const AVPixFmtDescriptor *desc_yuva420p = av_pix_fmt_desc_get(AV_PIX_FMT_YUVA420P);
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const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(srcFormat);
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const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(dstFormat);
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static enum AVPixelFormat cur_srcFormat;
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static int cur_srcW, cur_srcH;
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static const uint8_t *src[4];
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static int srcStride[4];
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uint8_t *dst[4] = { 0 };
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uint8_t *out[4] = { 0 };
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int dstStride[4];
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int i;
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uint64_t ssdY, ssdU = 0, ssdV = 0, ssdA = 0;
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struct SwsContext *dstContext = NULL, *outContext = NULL;
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uint32_t crc = 0;
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int res = 0;
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if (cur_srcFormat != srcFormat || cur_srcW != srcW || cur_srcH != srcH) {
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struct SwsContext *srcContext = NULL;
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int p;
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for (p = 0; p < 4; p++)
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av_freep(&src[p]);
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av_image_fill_linesizes(srcStride, srcFormat, srcW);
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for (p = 0; p < 4; p++) {
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if (srcStride[p])
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src[p] = av_mallocz(srcStride[p] * srcH + 16);
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if (srcStride[p] && !src[p]) {
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perror("Malloc");
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res = -1;
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goto end;
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}
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}
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srcContext = sws_getContext(w, h, AV_PIX_FMT_YUVA420P, srcW, srcH,
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srcFormat, SWS_BILINEAR, NULL, NULL, NULL);
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if (!srcContext) {
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fprintf(stderr, "Failed to get %s ---> %s\n",
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desc_yuva420p->name,
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desc_src->name);
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res = -1;
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goto end;
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}
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sws_scale(srcContext, ref, refStride, 0, h,
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(uint8_t * const *) src, srcStride);
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sws_freeContext(srcContext);
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cur_srcFormat = srcFormat;
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cur_srcW = srcW;
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cur_srcH = srcH;
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}
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av_image_fill_linesizes(dstStride, dstFormat, dstW);
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for (i = 0; i < 4; i++) {
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/* Image buffers passed into libswscale can be allocated any way you
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* prefer, as long as they're aligned enough for the architecture, and
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* they're freed appropriately (such as using av_free for buffers
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* allocated with av_malloc). */
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/* An extra 16 bytes is being allocated because some scalers may write
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* out of bounds. */
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if (dstStride[i])
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dst[i] = av_mallocz(dstStride[i] * dstH + 16);
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if (dstStride[i] && !dst[i]) {
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perror("Malloc");
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res = -1;
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goto end;
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}
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}
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dstContext = sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat,
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flags, NULL, NULL, NULL);
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if (!dstContext) {
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fprintf(stderr, "Failed to get %s ---> %s\n",
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desc_src->name, desc_dst->name);
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res = -1;
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goto end;
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}
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printf(" %s %dx%d -> %s %3dx%3d flags=%2d",
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desc_src->name, srcW, srcH,
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desc_dst->name, dstW, dstH,
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flags);
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fflush(stdout);
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sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
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for (i = 0; i < 4 && dstStride[i]; i++)
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crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), crc, dst[i],
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dstStride[i] * dstH);
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if (r && crc == r->crc) {
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ssdY = r->ssdY;
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ssdU = r->ssdU;
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ssdV = r->ssdV;
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ssdA = r->ssdA;
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} else {
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for (i = 0; i < 4; i++) {
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if (refStride[i])
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out[i] = av_mallocz(refStride[i] * h);
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if (refStride[i] && !out[i]) {
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perror("Malloc");
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res = -1;
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goto end;
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}
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}
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outContext = sws_getContext(dstW, dstH, dstFormat, w, h,
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AV_PIX_FMT_YUVA420P, SWS_BILINEAR,
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NULL, NULL, NULL);
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if (!outContext) {
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fprintf(stderr, "Failed to get %s ---> %s\n",
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desc_dst->name,
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desc_yuva420p->name);
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res = -1;
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goto end;
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}
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sws_scale(outContext, (const uint8_t * const *) dst, dstStride, 0, dstH,
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out, refStride);
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ssdY = getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
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if (hasChroma(srcFormat) && hasChroma(dstFormat)) {
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//FIXME check that output is really gray
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ssdU = getSSD(ref[1], out[1], refStride[1], refStride[1],
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(w + 1) >> 1, (h + 1) >> 1);
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ssdV = getSSD(ref[2], out[2], refStride[2], refStride[2],
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(w + 1) >> 1, (h + 1) >> 1);
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}
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if (isALPHA(srcFormat) && isALPHA(dstFormat))
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ssdA = getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
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ssdY /= w * h;
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ssdU /= w * h / 4;
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ssdV /= w * h / 4;
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ssdA /= w * h;
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sws_freeContext(outContext);
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for (i = 0; i < 4; i++)
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if (refStride[i])
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av_free(out[i]);
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}
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printf(" CRC=%08x SSD=%5"PRId64 ",%5"PRId64 ",%5"PRId64 ",%5"PRId64 "\n",
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crc, ssdY, ssdU, ssdV, ssdA);
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end:
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sws_freeContext(dstContext);
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for (i = 0; i < 4; i++)
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if (dstStride[i])
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av_free(dst[i]);
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return res;
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}
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static void selfTest(const uint8_t * const ref[4], int refStride[4],
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int w, int h,
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enum AVPixelFormat srcFormat_in,
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enum AVPixelFormat dstFormat_in)
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{
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const int flags[] = { SWS_FAST_BILINEAR, SWS_BILINEAR, SWS_BICUBIC,
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SWS_X, SWS_POINT, SWS_AREA, 0 };
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const int srcW = w;
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const int srcH = h;
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const int dstW[] = { srcW - srcW / 3, srcW, srcW + srcW / 3, 0 };
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const int dstH[] = { srcH - srcH / 3, srcH, srcH + srcH / 3, 0 };
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enum AVPixelFormat srcFormat, dstFormat;
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const AVPixFmtDescriptor *desc_src, *desc_dst;
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for (srcFormat = srcFormat_in != AV_PIX_FMT_NONE ? srcFormat_in : 0;
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srcFormat < AV_PIX_FMT_NB; srcFormat++) {
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if (!sws_isSupportedInput(srcFormat) ||
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!sws_isSupportedOutput(srcFormat))
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continue;
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desc_src = av_pix_fmt_desc_get(srcFormat);
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for (dstFormat = dstFormat_in != AV_PIX_FMT_NONE ? dstFormat_in : 0;
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dstFormat < AV_PIX_FMT_NB; dstFormat++) {
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int i, j, k;
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int res = 0;
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if (!sws_isSupportedInput(dstFormat) ||
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!sws_isSupportedOutput(dstFormat))
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continue;
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desc_dst = av_pix_fmt_desc_get(dstFormat);
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printf("%s -> %s\n", desc_src->name, desc_dst->name);
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fflush(stdout);
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for (k = 0; flags[k] && !res; k++)
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for (i = 0; dstW[i] && !res; i++)
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for (j = 0; dstH[j] && !res; j++)
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res = doTest(ref, refStride, w, h,
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srcFormat, dstFormat,
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srcW, srcH, dstW[i], dstH[j], flags[k],
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NULL);
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if (dstFormat_in != AV_PIX_FMT_NONE)
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break;
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}
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if (srcFormat_in != AV_PIX_FMT_NONE)
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break;
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}
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}
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static int fileTest(const uint8_t * const ref[4], int refStride[4],
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int w, int h, FILE *fp,
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enum AVPixelFormat srcFormat_in,
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enum AVPixelFormat dstFormat_in)
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{
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char buf[256];
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while (fgets(buf, sizeof(buf), fp)) {
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struct Results r;
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enum AVPixelFormat srcFormat;
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char srcStr[12];
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int srcW, srcH;
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enum AVPixelFormat dstFormat;
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char dstStr[12];
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int dstW, dstH;
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int flags;
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int ret;
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ret = sscanf(buf,
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" %12s %dx%d -> %12s %dx%d flags=%d CRC=%x"
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" SSD=%"PRIu64 ", %"PRIu64 ", %"PRIu64 ", %"PRIu64 "\n",
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srcStr, &srcW, &srcH, dstStr, &dstW, &dstH,
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&flags, &r.crc, &r.ssdY, &r.ssdU, &r.ssdV, &r.ssdA);
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if (ret != 12) {
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srcStr[0] = dstStr[0] = 0;
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ret = sscanf(buf, "%12s -> %12s\n", srcStr, dstStr);
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}
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srcFormat = av_get_pix_fmt(srcStr);
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dstFormat = av_get_pix_fmt(dstStr);
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if (srcFormat == AV_PIX_FMT_NONE || dstFormat == AV_PIX_FMT_NONE) {
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fprintf(stderr, "malformed input file\n");
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return -1;
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}
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if ((srcFormat_in != AV_PIX_FMT_NONE && srcFormat_in != srcFormat) ||
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(dstFormat_in != AV_PIX_FMT_NONE && dstFormat_in != dstFormat))
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continue;
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if (ret != 12) {
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printf("%s", buf);
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continue;
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}
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doTest(ref, refStride, w, h,
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srcFormat, dstFormat,
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srcW, srcH, dstW, dstH, flags,
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&r);
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}
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return 0;
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}
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#define W 96
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#define H 96
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int main(int argc, char **argv)
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{
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enum AVPixelFormat srcFormat = AV_PIX_FMT_NONE;
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enum AVPixelFormat dstFormat = AV_PIX_FMT_NONE;
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uint8_t *rgb_data = av_malloc(W * H * 4);
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const uint8_t *rgb_src[4] = { rgb_data, NULL, NULL, NULL };
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int rgb_stride[4] = { 4 * W, 0, 0, 0 };
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uint8_t *data = av_malloc(4 * W * H);
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const uint8_t * const src[4] = { data, data + W * H, data + W * H * 2, data + W * H * 3 };
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int stride[4] = { W, W, W, W };
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int x, y;
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struct SwsContext *sws;
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AVLFG rand;
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int res = -1;
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int i;
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if (!rgb_data || !data)
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return -1;
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sws = sws_getContext(W / 12, H / 12, AV_PIX_FMT_RGB32, W, H,
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AV_PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL);
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av_lfg_init(&rand, 1);
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for (y = 0; y < H; y++)
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for (x = 0; x < W * 4; x++)
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rgb_data[ x + y * 4 * W] = av_lfg_get(&rand);
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sws_scale(sws, rgb_src, rgb_stride, 0, H, (uint8_t * const *) src, stride);
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sws_freeContext(sws);
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av_free(rgb_data);
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for (i = 1; i < argc; i += 2) {
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if (argv[i][0] != '-' || i + 1 == argc)
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goto bad_option;
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if (!strcmp(argv[i], "-ref")) {
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FILE *fp = fopen(argv[i + 1], "r");
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if (!fp) {
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fprintf(stderr, "could not open '%s'\n", argv[i + 1]);
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goto error;
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}
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res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat);
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fclose(fp);
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goto end;
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} else if (!strcmp(argv[i], "-src")) {
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srcFormat = av_get_pix_fmt(argv[i + 1]);
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if (srcFormat == AV_PIX_FMT_NONE) {
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fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
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return -1;
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}
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} else if (!strcmp(argv[i], "-dst")) {
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dstFormat = av_get_pix_fmt(argv[i + 1]);
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if (dstFormat == AV_PIX_FMT_NONE) {
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fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
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return -1;
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}
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} else {
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bad_option:
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fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]);
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goto error;
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}
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}
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selfTest(src, stride, W, H, srcFormat, dstFormat);
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end:
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res = 0;
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error:
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av_free(data);
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return res;
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}
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