From a7c6e766387e8b3922bc710267c41163017bd316 Mon Sep 17 00:00:00 2001
From: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Date: Thu, 26 Nov 2009 21:20:28 +0000
Subject: Add support for hardcoding the motionpixels rgb to yuv table.

Originally committed as revision 20627 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/motionpixels.c | 56 ++---------------------------------------------
 1 file changed, 2 insertions(+), 54 deletions(-)

(limited to 'libavcodec/motionpixels.c')

diff --git a/libavcodec/motionpixels.c b/libavcodec/motionpixels.c
index a0f0d1a455..ac9c6ecf81 100644
--- a/libavcodec/motionpixels.c
+++ b/libavcodec/motionpixels.c
@@ -25,9 +25,7 @@
 
 #define MAX_HUFF_CODES 16
 
-typedef struct YuvPixel {
-    int8_t y, v, u;
-} YuvPixel;
+#include "motionpixels_tablegen.h"
 
 typedef struct HuffCode {
     int code;
@@ -51,61 +49,11 @@ typedef struct MotionPixelsContext {
     int bswapbuf_size;
 } MotionPixelsContext;
 
-static YuvPixel mp_rgb_yuv_table[1 << 15];
-
-static int mp_yuv_to_rgb(int y, int v, int u, int clip_rgb) {
-    static const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
-    int r, g, b;
-
-    r = (1000 * y + 701 * v) / 1000;
-    g = (1000 * y - 357 * v - 172 * u) / 1000;
-    b = (1000 * y + 886 * u) / 1000;
-    if (clip_rgb)
-        return ((cm[r * 8] & 0xF8) << 7) | ((cm[g * 8] & 0xF8) << 2) | (cm[b * 8] >> 3);
-    if ((unsigned)r < 32 && (unsigned)g < 32 && (unsigned)b < 32)
-        return (r << 10) | (g << 5) | b;
-    return 1 << 15;
-}
-
-static void mp_set_zero_yuv(YuvPixel *p)
-{
-    int i, j;
-
-    for (i = 0; i < 31; ++i) {
-        for (j = 31; j > i; --j)
-            if (!(p[j].u | p[j].v | p[j].y))
-                p[j] = p[j - 1];
-        for (j = 0; j < 31 - i; ++j)
-            if (!(p[j].u | p[j].v | p[j].y))
-                p[j] = p[j + 1];
-    }
-}
-
-static void mp_build_rgb_yuv_table(YuvPixel *p)
-{
-    int y, v, u, i;
-
-    for (y = 0; y <= 31; ++y)
-        for (v = -31; v <= 31; ++v)
-            for (u = -31; u <= 31; ++u) {
-                i = mp_yuv_to_rgb(y, v, u, 0);
-                if (i < (1 << 15) && !(p[i].u | p[i].v | p[i].y)) {
-                    p[i].y = y;
-                    p[i].v = v;
-                    p[i].u = u;
-                }
-            }
-    for (i = 0; i < 1024; ++i)
-        mp_set_zero_yuv(p + i * 32);
-}
-
 static av_cold int mp_decode_init(AVCodecContext *avctx)
 {
     MotionPixelsContext *mp = avctx->priv_data;
 
-    if (!mp_rgb_yuv_table[0].u) {
-        mp_build_rgb_yuv_table(mp_rgb_yuv_table);
-    }
+    motionpixels_tableinit();
     mp->avctx = avctx;
     dsputil_init(&mp->dsp, avctx);
     mp->changes_map = av_mallocz(avctx->width * avctx->height);
-- 
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