mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2025-12-20 14:00:13 +01:00
342869ad7c
Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
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* Copyright (c) 2025 Michael Niedermayer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 "libavutil/frame.h"
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#include "libavutil/adler32.h"
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#include "libpostproc/postprocess.h"
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typedef const uint8_t *cuint8;
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static void blocks(AVFrame *frame, int blocksize, int mul)
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{
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for(int y=0; y<frame->height; y++) {
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for(int x=0; x<frame->width; x++) {
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frame->data[0][x + y*frame->linesize[0]] = x/blocksize*mul + y/blocksize*mul;
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}
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}
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for(int y=0; y<(frame->height+1)/2; y++) {
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for(int x=0; x<(frame->width+1)/2; x++) {
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frame->data[1][x + y*frame->linesize[1]] = x/blocksize*mul + y/blocksize*mul;
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frame->data[2][x + y*frame->linesize[2]] = x/blocksize * (y/blocksize)*mul;
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}
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}
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}
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static int64_t chksum(AVFrame *f)
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{
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AVAdler a = 123;
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for(int y=0; y<f->height; y++) {
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a = av_adler32_update(a, &f->data[0][y*f->linesize[0]], f->width);
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}
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for(int y=0; y<(f->height+1)/2; y++) {
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a = av_adler32_update(a, &f->data[1][y*f->linesize[1]], (f->width+1)/2);
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a = av_adler32_update(a, &f->data[2][y*f->linesize[2]], (f->width+1)/2);
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}
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return a;
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}
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static int64_t test(int width, int height, int blocksize, int flags, int pict_type, int quality) {
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AVFrame *in = av_frame_alloc();
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AVFrame *out = av_frame_alloc();
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pp_context *context = pp_get_context(width, height, flags);
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pp_mode *mode = pp_get_mode_by_name_and_quality("be,de", quality);
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int64_t ret;
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if (!in || !out || !context || !mode) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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in-> width = out->width = width;
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in->height = out->height = height;
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in->format = out->format = AV_PIX_FMT_YUV420P;
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ret = av_frame_get_buffer(in, 0);
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if (ret < 0)
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goto end;
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ret = av_frame_get_buffer(out, 0);
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if (ret < 0)
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goto end;
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blocks(in, blocksize, 11);
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pp_postprocess( (cuint8[]){in->data[0], in->data[1], in->data[2]}, in->linesize,
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out->data, out->linesize,
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width, height, NULL, 0,
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mode, context, pict_type);
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ret = chksum(out);
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end:
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av_frame_free(&in);
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av_frame_free(&out);
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pp_free_context(context);
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pp_free_mode(mode);
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return ret;
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}
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int main(int argc, char **argv) {
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for (int w=8; w< 352; w=w*3-1) {
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for (int h=8; h< 352; h=h*5-7) {
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for (int b=1; b<17; b*=2) {
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for (int q=0; q<17; q = 2*q+1) {
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int64_t ret = test(352, 288, b, PP_FORMAT_420, 0, q);
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printf("blocktest %dx%d b:%d q:%d result %"PRIX64"\n", w, h, b, q, ret);
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}
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}
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}
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}
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return 0;
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}
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