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Add support for hardcoding the motionpixels rgb to yuv table.
Originally committed as revision 20627 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger
parent
7c7d3abf3c
commit
a7c6e76638
@ -718,4 +718,5 @@ $(SUBDIR)%_tables.h: $(SUBDIR)%_tablegen$(HOSTEXESUF)
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ifdef CONFIG_HARDCODED_TABLES
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$(SUBDIR)mpegaudiodec.o: $(SUBDIR)mpegaudio_tables.h
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$(SUBDIR)motionpixels.o: $(SUBDIR)motionpixels_tables.h
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endif
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@ -25,9 +25,7 @@
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#define MAX_HUFF_CODES 16
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typedef struct YuvPixel {
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int8_t y, v, u;
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} YuvPixel;
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#include "motionpixels_tablegen.h"
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typedef struct HuffCode {
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int code;
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@ -51,61 +49,11 @@ typedef struct MotionPixelsContext {
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int bswapbuf_size;
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} MotionPixelsContext;
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static YuvPixel mp_rgb_yuv_table[1 << 15];
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static int mp_yuv_to_rgb(int y, int v, int u, int clip_rgb) {
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static const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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int r, g, b;
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r = (1000 * y + 701 * v) / 1000;
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g = (1000 * y - 357 * v - 172 * u) / 1000;
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b = (1000 * y + 886 * u) / 1000;
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if (clip_rgb)
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return ((cm[r * 8] & 0xF8) << 7) | ((cm[g * 8] & 0xF8) << 2) | (cm[b * 8] >> 3);
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if ((unsigned)r < 32 && (unsigned)g < 32 && (unsigned)b < 32)
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return (r << 10) | (g << 5) | b;
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return 1 << 15;
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}
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static void mp_set_zero_yuv(YuvPixel *p)
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{
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int i, j;
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for (i = 0; i < 31; ++i) {
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for (j = 31; j > i; --j)
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if (!(p[j].u | p[j].v | p[j].y))
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p[j] = p[j - 1];
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for (j = 0; j < 31 - i; ++j)
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if (!(p[j].u | p[j].v | p[j].y))
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p[j] = p[j + 1];
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}
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}
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static void mp_build_rgb_yuv_table(YuvPixel *p)
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{
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int y, v, u, i;
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for (y = 0; y <= 31; ++y)
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for (v = -31; v <= 31; ++v)
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for (u = -31; u <= 31; ++u) {
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i = mp_yuv_to_rgb(y, v, u, 0);
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if (i < (1 << 15) && !(p[i].u | p[i].v | p[i].y)) {
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p[i].y = y;
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p[i].v = v;
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p[i].u = u;
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}
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}
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for (i = 0; i < 1024; ++i)
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mp_set_zero_yuv(p + i * 32);
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}
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static av_cold int mp_decode_init(AVCodecContext *avctx)
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{
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MotionPixelsContext *mp = avctx->priv_data;
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if (!mp_rgb_yuv_table[0].u) {
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mp_build_rgb_yuv_table(mp_rgb_yuv_table);
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}
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motionpixels_tableinit();
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mp->avctx = avctx;
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dsputil_init(&mp->dsp, avctx);
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mp->changes_map = av_mallocz(avctx->width * avctx->height);
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44
libavcodec/motionpixels_tablegen.c
Normal file
44
libavcodec/motionpixels_tablegen.c
Normal file
@ -0,0 +1,44 @@
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/*
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* Generate a header file for hardcoded motionpixels RGB to YUV table
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*
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* Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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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 <stdlib.h>
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#define CONFIG_HARDCODED_TABLES 0
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#define MAX_NEG_CROP 0
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#define ff_cropTbl ((uint8_t *)NULL)
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#include "motionpixels_tablegen.h"
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#include "tableprint.h"
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void tableinit(void)
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{
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motionpixels_tableinit();
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}
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const struct tabledef tables[] = {
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{
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"static const YuvPixel mp_rgb_yuv_table[1 << 15]",
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write_int8_2d_array,
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mp_rgb_yuv_table,
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1 << 15,
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3
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},
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{ NULL }
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};
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91
libavcodec/motionpixels_tablegen.h
Normal file
91
libavcodec/motionpixels_tablegen.h
Normal file
@ -0,0 +1,91 @@
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/*
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* Header file for hardcoded motionpixels RGB to YUV table
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*
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* Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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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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#ifndef MOTIONPIXELS_TABLEGEN_H
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#define MOTIONPIXELS_TABLEGEN_H
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#include <stdint.h>
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typedef struct YuvPixel {
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int8_t y, v, u;
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} YuvPixel;
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static int mp_yuv_to_rgb(int y, int v, int u, int clip_rgb) {
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static const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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int r, g, b;
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r = (1000 * y + 701 * v) / 1000;
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g = (1000 * y - 357 * v - 172 * u) / 1000;
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b = (1000 * y + 886 * u) / 1000;
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if (clip_rgb)
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return ((cm[r * 8] & 0xF8) << 7) | ((cm[g * 8] & 0xF8) << 2) | (cm[b * 8] >> 3);
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if ((unsigned)r < 32 && (unsigned)g < 32 && (unsigned)b < 32)
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return (r << 10) | (g << 5) | b;
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return 1 << 15;
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}
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#if CONFIG_HARDCODED_TABLES
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#define motionpixels_tableinit()
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#include "libavcodec/motionpixels_tables.h"
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#else
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static YuvPixel mp_rgb_yuv_table[1 << 15];
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static void mp_set_zero_yuv(YuvPixel *p)
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{
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int i, j;
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for (i = 0; i < 31; ++i) {
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for (j = 31; j > i; --j)
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if (!(p[j].u | p[j].v | p[j].y))
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p[j] = p[j - 1];
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for (j = 0; j < 31 - i; ++j)
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if (!(p[j].u | p[j].v | p[j].y))
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p[j] = p[j + 1];
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}
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}
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static void mp_build_rgb_yuv_table(YuvPixel *p)
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{
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int y, v, u, i;
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for (y = 0; y <= 31; ++y)
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for (v = -31; v <= 31; ++v)
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for (u = -31; u <= 31; ++u) {
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i = mp_yuv_to_rgb(y, v, u, 0);
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if (i < (1 << 15) && !(p[i].u | p[i].v | p[i].y)) {
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p[i].y = y;
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p[i].v = v;
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p[i].u = u;
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}
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}
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for (i = 0; i < 1024; ++i)
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mp_set_zero_yuv(p + i * 32);
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}
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static void motionpixels_tableinit(void)
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{
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if (!mp_rgb_yuv_table[0].u)
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mp_build_rgb_yuv_table(mp_rgb_yuv_table);
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}
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#endif /* CONFIG_HARDCODED_TABLES */
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#endif /* MOTIONPIXELS_TABLEGEN_H */
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@ -52,6 +52,7 @@ void write_##name##_2d_array(const void *arg, int len, int len2)\
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}\
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}
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WRITE_2D_FUNC(int8, int8_t)
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WRITE_2D_FUNC(uint32, uint32_t)
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int main(int argc, char *argv[])
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@ -32,6 +32,7 @@
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*/
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void write_int8_array (const void *, int, int);
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void write_uint32_array (const void *, int, int);
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void write_int8_2d_array (const void *, int, int);
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void write_uint32_2d_array(const void *, int, int);
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/** \} */ // end of printfuncs group
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