diff options
| author | Tim Redfern <tim@eclectronics.org> | 2013-09-05 17:55:35 +0100 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2013-09-05 17:55:35 +0100 |
| commit | 741fb4b9e135cfb161a749db88713229038577bb (patch) | |
| tree | 08bc9925659cbcac45162bacf31dc6336d4f60b4 /ffmpeg1/tests/utils.c | |
| parent | a2e1bf3495b7bfefdaedb8fc737e969ab06df079 (diff) | |
making act segmenter
Diffstat (limited to 'ffmpeg1/tests/utils.c')
| -rw-r--r-- | ffmpeg1/tests/utils.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/ffmpeg1/tests/utils.c b/ffmpeg1/tests/utils.c deleted file mode 100644 index e8ef06f..0000000 --- a/ffmpeg1/tests/utils.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * copyright (c) Sebastien Bechet <s.bechet@av7.net> - * - * 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 <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define SCALEBITS 8 -#define ONE_HALF (1 << (SCALEBITS - 1)) -#define FIX(x) ((int) ((x) * (1L << SCALEBITS) + 0.5)) - -#define err_if(expr) do { \ - if (expr) { \ - fprintf(stderr, "%s\n", strerror(errno)); \ - exit(1); \ - } \ -} while (0) - -static void rgb24_to_yuv420p(unsigned char *lum, unsigned char *cb, - unsigned char *cr, unsigned char *src, - int width, int height) -{ - int wrap, wrap3, x, y; - int r, g, b, r1, g1, b1; - unsigned char *p; - - wrap = width; - wrap3 = width * 3; - p = src; - for (y = 0; y < height; y += 2) { - for (x = 0; x < width; x += 2) { - r = p[0]; - g = p[1]; - b = p[2]; - r1 = r; - g1 = g; - b1 = b; - lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - r = p[3]; - g = p[4]; - b = p[5]; - r1 += r; - g1 += g; - b1 += b; - lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - p += wrap3; - lum += wrap; - - r = p[0]; - g = p[1]; - b = p[2]; - r1 += r; - g1 += g; - b1 += b; - lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - r = p[3]; - g = p[4]; - b = p[5]; - r1 += r; - g1 += g; - b1 += b; - lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + - FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; - - cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + - FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128; - cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 - - FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> (SCALEBITS + 2)) + 128; - - cb++; - cr++; - p += -wrap3 + 2 * 3; - lum += -wrap + 2; - } - p += wrap3; - lum += wrap; - } -} - -/* cif format */ -#define DEFAULT_WIDTH 352 -#define DEFAULT_HEIGHT 288 -#define DEFAULT_NB_PICT 50 - -static void pgmyuv_save(const char *filename, int w, int h, - unsigned char *rgb_tab) -{ - FILE *f; - int i, h2, w2; - unsigned char *cb, *cr; - unsigned char *lum_tab, *cb_tab, *cr_tab; - - lum_tab = malloc(w * h); - cb_tab = malloc(w * h / 4); - cr_tab = malloc(w * h / 4); - - rgb24_to_yuv420p(lum_tab, cb_tab, cr_tab, rgb_tab, w, h); - - if (filename) { - f = fopen(filename, "wb"); - fprintf(f, "P5\n%d %d\n%d\n", w, h * 3 / 2, 255); - } else { - f = stdout; - } - - err_if(fwrite(lum_tab, 1, w * h, f) != w * h); - h2 = h / 2; - w2 = w / 2; - cb = cb_tab; - cr = cr_tab; - - if (filename) { - for (i = 0; i < h2; i++) { - err_if(fwrite(cb, 1, w2, f) != w2); - err_if(fwrite(cr, 1, w2, f) != w2); - cb += w2; - cr += w2; - } - fclose(f); - } else { - for (i = 0; i < h2; i++) { - err_if(fwrite(cb, 1, w2, f) != w2); - cb += w2; - } - for (i = 0; i < h2; i++) { - err_if(fwrite(cr, 1, w2, f) != w2); - cr += w2; - } - } - - free(lum_tab); - free(cb_tab); - free(cr_tab); -} - -static unsigned char *rgb_tab; -static int width, height, wrap; - -static void put_pixel(int x, int y, int r, int g, int b) -{ - unsigned char *p; - - if (x < 0 || x >= width || - y < 0 || y >= height) - return; - - p = rgb_tab + y * wrap + x * 3; - p[0] = r; - p[1] = g; - p[2] = b; -} |
