From c787cb339ed7b49a303b7d8b7a5197b38e89c7c3 Mon Sep 17 00:00:00 2001 From: Reimar Döffinger Date: Sun, 21 Mar 2010 16:03:45 +0000 Subject: Add support for hard-coding the 256kB large dv_vlc_map table. Originally committed as revision 22622 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/Makefile | 7 ++++ libavcodec/dv.c | 57 +--------------------------- libavcodec/dv_tablegen.c | 50 +++++++++++++++++++++++++ libavcodec/dv_tablegen.h | 96 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 155 insertions(+), 55 deletions(-) create mode 100644 libavcodec/dv_tablegen.c create mode 100644 libavcodec/dv_tablegen.h diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 93420dbf87..690df3ee42 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -626,6 +626,12 @@ $(SUBDIR)mpegaudio_tablegen$(HOSTEXESUF): HOSTCFLAGS += -DFRAC_BITS=15 $(SUBDIR)mpegaudio_tablegen.ho: CPPFLAGS += -DFRAC_BITS=15 endif +ifdef CONFIG_SMALL +$(SUBDIR)%_tablegen$(HOSTEXESUF): HOSTCFLAGS += -DCONFIG_SMALL=1 +else +$(SUBDIR)%_tablegen$(HOSTEXESUF): HOSTCFLAGS += -DCONFIG_SMALL=0 +endif + $(SUBDIR)%_tablegen$(HOSTEXESUF): $(SUBDIR)%_tablegen.c $(SUBDIR)tableprint.c $(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^ $(HOSTLIBS) @@ -634,6 +640,7 @@ $(SUBDIR)%_tables.h: $(SUBDIR)%_tablegen$(HOSTEXESUF) ifdef CONFIG_HARDCODED_TABLES $(SUBDIR)aac.o: $(SUBDIR)cbrt_tables.h +$(SUBDIR)dv.o: $(SUBDIR)dv_tables.h $(SUBDIR)mdct.o: $(SUBDIR)mdct_tables.h $(SUBDIR)mpegaudiodec.o: $(SUBDIR)mpegaudio_tables.h $(SUBDIR)motionpixels.o: $(SUBDIR)motionpixels_tables.h diff --git a/libavcodec/dv.c b/libavcodec/dv.c index a35bd14f9e..6711274704 100644 --- a/libavcodec/dv.c +++ b/libavcodec/dv.c @@ -44,7 +44,7 @@ #include "put_bits.h" #include "simple_idct.h" #include "dvdata.h" -#include "dv_vlc_data.h" +#include "dv_tablegen.h" //#undef NDEBUG //#include @@ -65,21 +65,8 @@ typedef struct DVVideoContext { #define TEX_VLC_BITS 9 -#if CONFIG_SMALL -#define DV_VLC_MAP_RUN_SIZE 15 -#define DV_VLC_MAP_LEV_SIZE 23 -#else -#define DV_VLC_MAP_RUN_SIZE 64 -#define DV_VLC_MAP_LEV_SIZE 512 //FIXME sign was removed so this should be /2 but needs check -#endif - /* XXX: also include quantization */ static RL_VLC_ELEM dv_rl_vlc[1184]; -/* VLC encoding lookup table */ -static struct dv_vlc_pair { - uint32_t vlc; - uint8_t size; -} dv_vlc_map[DV_VLC_MAP_RUN_SIZE][DV_VLC_MAP_LEV_SIZE]; static inline int dv_work_pool_size(const DVprofile *d) { @@ -326,47 +313,7 @@ static av_cold int dvvideo_init(AVCodecContext *avctx) } free_vlc(&dv_vlc); - for (i = 0; i < NB_DV_VLC - 1; i++) { - if (dv_vlc_run[i] >= DV_VLC_MAP_RUN_SIZE) - continue; -#if CONFIG_SMALL - if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE) - continue; -#endif - - if (dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size != 0) - continue; - - dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = - dv_vlc_bits[i] << (!!dv_vlc_level[i]); - dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = - dv_vlc_len[i] + (!!dv_vlc_level[i]); - } - for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) { -#if CONFIG_SMALL - for (j = 1; j < DV_VLC_MAP_LEV_SIZE; j++) { - if (dv_vlc_map[i][j].size == 0) { - dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | - (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size)); - dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + - dv_vlc_map[0][j].size; - } - } -#else - for (j = 1; j < DV_VLC_MAP_LEV_SIZE/2; j++) { - if (dv_vlc_map[i][j].size == 0) { - dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | - (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size)); - dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + - dv_vlc_map[0][j].size; - } - dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc = - dv_vlc_map[i][j].vlc | 1; - dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size = - dv_vlc_map[i][j].size; - } -#endif - } + dv_vlc_map_tableinit(); } /* Generic DSP setup */ diff --git a/libavcodec/dv_tablegen.c b/libavcodec/dv_tablegen.c new file mode 100644 index 0000000000..4294132cf2 --- /dev/null +++ b/libavcodec/dv_tablegen.c @@ -0,0 +1,50 @@ +/* + * Generate a header file for hardcoded DV tables + * + * Copyright (c) 2010 Reimar Döffinger + * + * 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 +#define CONFIG_HARDCODED_TABLES 0 +#ifndef CONFIG_SMALL +#error CONFIG_SMALL must be defined to generate tables +#endif +#include "dv_tablegen.h" +#include "tableprint.h" +#include + +WRITE_1D_FUNC_ARGV(vlc_pair, struct dv_vlc_pair, 7, + "{0x%"PRIx32", %"PRId8"}", data[i].vlc, data[i].size) +WRITE_2D_FUNC(vlc_pair, struct dv_vlc_pair) + +void tableinit(void) +{ + dv_vlc_map_tableinit(); +} + +const struct tabledef tables[] = { + { + "static const struct dv_vlc_pair dv_vlc_map[DV_VLC_MAP_RUN_SIZE][DV_VLC_MAP_LEV_SIZE]", + write_vlc_pair_2d_array, + dv_vlc_map, + DV_VLC_MAP_RUN_SIZE, + DV_VLC_MAP_LEV_SIZE + }, + { NULL } +}; diff --git a/libavcodec/dv_tablegen.h b/libavcodec/dv_tablegen.h new file mode 100644 index 0000000000..ee6e8220af --- /dev/null +++ b/libavcodec/dv_tablegen.h @@ -0,0 +1,96 @@ +/* + * Header file for hardcoded DV tables + * + * Copyright (c) 2010 Reimar Döffinger + * + * 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 + */ + +#ifndef DV_TABLEGEN_H +#define DV_TABLEGEN_H + +#include +#include "dv_vlc_data.h" + +#if CONFIG_SMALL +#define DV_VLC_MAP_RUN_SIZE 15 +#define DV_VLC_MAP_LEV_SIZE 23 +#else +#define DV_VLC_MAP_RUN_SIZE 64 +#define DV_VLC_MAP_LEV_SIZE 512 //FIXME sign was removed so this should be /2 but needs check +#endif + +/* VLC encoding lookup table */ +struct dv_vlc_pair { + uint32_t vlc; + uint32_t size; +}; + +#if CONFIG_HARDCODED_TABLES +#define dv_vlc_map_tableinit() +#include "libavcodec/dv_tables.h" +#else +static struct dv_vlc_pair dv_vlc_map[DV_VLC_MAP_RUN_SIZE][DV_VLC_MAP_LEV_SIZE]; + +static void dv_vlc_map_tableinit(void) +{ + int i, j; + for (i = 0; i < NB_DV_VLC - 1; i++) { + if (dv_vlc_run[i] >= DV_VLC_MAP_RUN_SIZE) + continue; +#if CONFIG_SMALL + if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE) + continue; +#endif + + if (dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size != 0) + continue; + + dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = + dv_vlc_bits[i] << (!!dv_vlc_level[i]); + dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = + dv_vlc_len[i] + (!!dv_vlc_level[i]); + } + for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) { +#if CONFIG_SMALL + for (j = 1; j < DV_VLC_MAP_LEV_SIZE; j++) { + if (dv_vlc_map[i][j].size == 0) { + dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | + (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size)); + dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + + dv_vlc_map[0][j].size; + } + } +#else + for (j = 1; j < DV_VLC_MAP_LEV_SIZE/2; j++) { + if (dv_vlc_map[i][j].size == 0) { + dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | + (dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size)); + dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size + + dv_vlc_map[0][j].size; + } + dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc = + dv_vlc_map[i][j].vlc | 1; + dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size = + dv_vlc_map[i][j].size; + } +#endif + } +} +#endif /* CONFIG_HARDCODED_TABLES */ + +#endif /* DV_TABLEGEN_H */ -- cgit v1.2.3