X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=tests%2Fvideogen.c;h=8c3d53976e65ebcb7ccebfdb6f260f508b704c9f;hb=4a9ca9355607053fdbcb8adcb614b08305eca88f;hp=4238e3f862d4ca6152a57208e1c75498550469b0;hpb=966116b9f73a27cf2cb5692cf1bc326bc0bf2ceb;p=ffmpeg

diff --git a/tests/videogen.c b/tests/videogen.c
index 4238e3f862d..8c3d53976e6 100644
--- a/tests/videogen.c
+++ b/tests/videogen.c
@@ -1,23 +1,23 @@
 /*
- * Generates a synthetic YUV video sequence suitable for codec testing.
- * NOTE: No floats are used to guarantee a bit exact output.
+ * Generate a synthetic YUV video sequence suitable for codec testing.
+ * NOTE: No floats are used to guarantee bitexact output.
  *
  * Copyright (c) 2002 Fabrice Bellard
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -25,128 +25,7 @@
 #include <stdint.h>
 #include <stdio.h>
 
-#define SCALEBITS 8
-#define ONE_HALF  (1 << (SCALEBITS - 1))
-#define FIX(x)    ((int) ((x) * (1L<<SCALEBITS) + 0.5))
-
-static void rgb24_to_yuv420p(uint8_t *lum, uint8_t *cb, uint8_t *cr,
-                              uint8_t *src, int width, int height)
-{
-    int wrap, wrap3, x, y;
-    int r, g, b, r1, g1, b1;
-    uint8_t *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 /* 2 seconds */
-
-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);
-
-    f = fopen(filename,"wb");
-    fprintf(f, "P5\n%d %d\n%d\n", w, (h * 3) / 2, 255);
-    fwrite(lum_tab, 1, w * h, f);
-    h2 = h / 2;
-    w2 = w / 2;
-    cb = cb_tab;
-    cr = cr_tab;
-    for(i=0;i<h2;i++) {
-        fwrite(cb, 1, w2, f);
-        fwrite(cr, 1, w2, f);
-        cb += w2;
-        cr += w2;
-    }
-    fclose(f);
-
-    free(lum_tab);
-    free(cb_tab);
-    free(cr_tab);
-}
-
-unsigned char *rgb_tab;
-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;
-}
+#include "utils.c"
 
 static unsigned int myrnd(unsigned int *seed_ptr, int n)
 {
@@ -180,7 +59,7 @@ static int int_cos(int a)
     neg = 0;
     if (a > (FRAC_ONE / 4)) {
         neg = -1;
-        a = (FRAC_ONE / 2) - a;
+        a   = (FRAC_ONE / 2) - a;
     }
     v = FRAC_ONE - ((a * a) >> 4);
     v = (v ^ neg) - neg;
@@ -194,9 +73,9 @@ typedef struct VObj {
     int r, g, b;
 } VObj;
 
-VObj objs[NB_OBJS];
+static VObj objs[NB_OBJS];
 
-unsigned int seed = 1;
+static unsigned int seed = 1;
 
 static void gen_image(int num, int w, int h)
 {
@@ -204,7 +83,7 @@ static void gen_image(int num, int w, int h)
     unsigned int seed1;
 
     if (num == 0) {
-        for(i=0;i<NB_OBJS;i++) {
+        for (i = 0; i < NB_OBJS; i++) {
             objs[i].x = myrnd(&seed, w);
             objs[i].y = myrnd(&seed, h);
             objs[i].w = myrnd(&seed, w / 4) + 10;
@@ -219,21 +98,21 @@ static void gen_image(int num, int w, int h)
     /* test motion estimation */
     dx = int_cos(num * FRAC_ONE / 50) * 35;
     dy = int_cos(num * FRAC_ONE / 50 + FRAC_ONE / 10) * 30;
-    for(y=0;y<h;y++) {
-        for(x=0;x<w;x++) {
+    for (y = 0; y < h; y++) {
+        for (x = 0; x < w; x++) {
             x1 = (x << FRAC_BITS) + dx;
             y1 = (y << FRAC_BITS) + dy;
-            r = ((y1 * 7) >> FRAC_BITS) & 0xff;
-            g = (((x1 + y1) * 9) >> FRAC_BITS) & 0xff;
-            b = ((x1 * 5) >> FRAC_BITS) & 0xff;
+            r  =       ((y1  * 7) >> FRAC_BITS) & 0xff;
+            g  = (((x1 + y1) * 9) >> FRAC_BITS) & 0xff;
+            b  =  ((x1       * 5) >> FRAC_BITS) & 0xff;
             put_pixel(x, y, r, g, b);
         }
     }
 
     /* then some noise with very high intensity to test saturation */
     seed1 = num;
-    for(y=0;y<NOISE_W;y++) {
-        for(x=0;x<NOISE_W;x++) {
+    for (y = 0; y < NOISE_W; y++) {
+        for (x = 0; x < NOISE_W; x++) {
             r = myrnd(&seed1, 256);
             g = myrnd(&seed1, 256);
             b = myrnd(&seed1, 256);
@@ -242,11 +121,11 @@ static void gen_image(int num, int w, int h)
     }
 
     /* then moving objects */
-    for(i=0;i<NB_OBJS;i++) {
+    for (i = 0; i < NB_OBJS; i++) {
         VObj *p = &objs[i];
         seed1 = i;
-        for(y=0;y<p->h;y++) {
-            for(x=0;x<p->w;x++) {
+        for (y = 0; y < p->h; y++) {
+            for (x = 0; x < p->w; x++) {
                 r = p->r;
                 g = p->g;
                 b = p->b;
@@ -277,11 +156,11 @@ int main(int argc, char **argv)
     h = DEFAULT_HEIGHT;
 
     rgb_tab = malloc(w * h * 3);
-    wrap = w * 3;
-    width = w;
-    height = h;
+    wrap    = w * 3;
+    width   = w;
+    height  = h;
 
-    for(i=0;i<DEFAULT_NB_PICT;i++) {
+    for (i = 0; i < DEFAULT_NB_PICT; i++) {
         snprintf(buf, sizeof(buf), "%s%02d.pgm", argv[1], i);
         gen_image(i, w, h);
         pgmyuv_save(buf, w, h, rgb_tab);