X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_04%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Fcabac.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_04%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Fcabac.c;h=0000000000000000000000000000000000000000;hb=6fa8f2f38d4b0b35f8539bf94e27ae27015c7689;hp=3e50dc82a0fe966f89e768603c9bb1b1f165824a;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavcodec/cabac.c b/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavcodec/cabac.c deleted file mode 100644 index 3e50dc8..0000000 --- a/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavcodec/cabac.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder - * Copyright (c) 2003 Michael Niedermayer - * - * This library 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 of the License, or (at your option) any later version. - * - * This library 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 this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/** - * @file cabac.c - * Context Adaptive Binary Arithmetic Coder. - */ - -#include - -#include "common.h" -#include "cabac.h" - -const uint8_t ff_h264_lps_range[64][4]= { -{128,176,208,240}, {128,167,197,227}, {128,158,187,216}, {123,150,178,205}, -{116,142,169,195}, {111,135,160,185}, {105,128,152,175}, {100,122,144,166}, -{ 95,116,137,158}, { 90,110,130,150}, { 85,104,123,142}, { 81, 99,117,135}, -{ 77, 94,111,128}, { 73, 89,105,122}, { 69, 85,100,116}, { 66, 80, 95,110}, -{ 62, 76, 90,104}, { 59, 72, 86, 99}, { 56, 69, 81, 94}, { 53, 65, 77, 89}, -{ 51, 62, 73, 85}, { 48, 59, 69, 80}, { 46, 56, 66, 76}, { 43, 53, 63, 72}, -{ 41, 50, 59, 69}, { 39, 48, 56, 65}, { 37, 45, 54, 62}, { 35, 43, 51, 59}, -{ 33, 41, 48, 56}, { 32, 39, 46, 53}, { 30, 37, 43, 50}, { 29, 35, 41, 48}, -{ 27, 33, 39, 45}, { 26, 31, 37, 43}, { 24, 30, 35, 41}, { 23, 28, 33, 39}, -{ 22, 27, 32, 37}, { 21, 26, 30, 35}, { 20, 24, 29, 33}, { 19, 23, 27, 31}, -{ 18, 22, 26, 30}, { 17, 21, 25, 28}, { 16, 20, 23, 27}, { 15, 19, 22, 25}, -{ 14, 18, 21, 24}, { 14, 17, 20, 23}, { 13, 16, 19, 22}, { 12, 15, 18, 21}, -{ 12, 14, 17, 20}, { 11, 14, 16, 19}, { 11, 13, 15, 18}, { 10, 12, 15, 17}, -{ 10, 12, 14, 16}, { 9, 11, 13, 15}, { 9, 11, 12, 14}, { 8, 10, 12, 14}, -{ 8, 9, 11, 13}, { 7, 9, 11, 12}, { 7, 9, 10, 12}, { 7, 8, 10, 11}, -{ 6, 8, 9, 11}, { 6, 7, 9, 10}, { 6, 7, 8, 9}, { 2, 2, 2, 2}, -}; - -const uint8_t ff_h264_mps_state[64]= { - 1, 2, 3, 4, 5, 6, 7, 8, - 9,10,11,12,13,14,15,16, - 17,18,19,20,21,22,23,24, - 25,26,27,28,29,30,31,32, - 33,34,35,36,37,38,39,40, - 41,42,43,44,45,46,47,48, - 49,50,51,52,53,54,55,56, - 57,58,59,60,61,62,62,63, -}; - -const uint8_t ff_h264_lps_state[64]= { - 0, 0, 1, 2, 2, 4, 4, 5, - 6, 7, 8, 9, 9,11,11,12, - 13,13,15,15,16,16,18,18, - 19,19,21,21,22,22,23,24, - 24,25,26,26,27,27,28,29, - 29,30,30,30,31,32,32,33, - 33,33,34,34,35,35,35,36, - 36,36,37,37,37,38,38,63, -}; - -/** - * - * @param buf_size size of buf in bits - */ -void ff_init_cabac_encoder(CABACContext *c, uint8_t *buf, int buf_size){ - init_put_bits(&c->pb, buf, buf_size, NULL, NULL); - - c->low= 0; - c->range= 0x1FE; - c->outstanding_count= 0; -#ifdef STRICT_LIMITS - c->sym_count =0; -#endif - - c->pb.bit_left++; //avoids firstBitFlag -} - -/** - * - * @param buf_size size of buf in bits - */ -void ff_init_cabac_decoder(CABACContext *c, uint8_t *buf, int buf_size){ - c->bytestream_start= - c->bytestream= buf; - - c->low= *c->bytestream++; - c->low= (c->low<<9) + ((*c->bytestream++)<<1); - c->range= 0x1FE00; - c->bits_left= 7; -} - -void ff_init_cabac_states(CABACContext *c, uint8_t const (*lps_range)[4], - uint8_t const *mps_state, uint8_t const *lps_state, int state_count){ - int i, j; - - for(i=0; ilps_range[2*i+0][j]= - c->lps_range[2*i+1][j]= lps_range[i][j]; - } - - c->mps_state[2*i+0]= 2*mps_state[i]; - c->mps_state[2*i+1]= 2*mps_state[i]+1; - - if(lps_state[i]){ - c->lps_state[2*i+0]= 2*lps_state[i]; - c->lps_state[2*i+1]= 2*lps_state[i]+1; - }else{ - c->lps_state[2*i+0]= 1; - c->lps_state[2*i+1]= 0; - } - } -} - -#if 0 //selftest -#define SIZE 10240 -int main(){ - CABACContext c; - uint8_t b[9*SIZE]; - uint8_t r[9*SIZE]; - int i; - uint8_t state[10]= {0}; - - ff_init_cabac_encoder(&c, b, SIZE); - ff_init_cabac_states(&c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64); - - for(i=0; i