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Diffstat (limited to 'contrib/ffmpeg/libavcodec/liba52/resample_c.c')
-rw-r--r--contrib/ffmpeg/libavcodec/liba52/resample_c.c203
1 files changed, 0 insertions, 203 deletions
diff --git a/contrib/ffmpeg/libavcodec/liba52/resample_c.c b/contrib/ffmpeg/libavcodec/liba52/resample_c.c
deleted file mode 100644
index 905146a7d..000000000
--- a/contrib/ffmpeg/libavcodec/liba52/resample_c.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * this code is based on a52dec/libao/audio_out_oss.c
- * copyright (C) 2001 Arpad Gereoffy
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-static inline int16_t convert (int32_t i)
-{
- if (i > 0x43c07fff)
- return 32767;
- else if (i < 0x43bf8000)
- return -32768;
- else
- return i - 0x43c00000;
-}
-
-static int a52_resample_MONO_to_5_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[5*i] = s16[5*i+1] = s16[5*i+2] = s16[5*i+3] = 0;
- s16[5*i+4] = convert (f[i]);
- }
- return 5*256;
-}
-
-static int a52_resample_MONO_to_1_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[i] = convert (f[i]);
- }
- return 1*256;
-}
-
-static int a52_resample_STEREO_to_2_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[2*i] = convert (f[i]);
- s16[2*i+1] = convert (f[i+256]);
- }
- return 2*256;
-}
-
-static int a52_resample_3F_to_5_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[5*i] = convert (f[i]);
- s16[5*i+1] = convert (f[i+512]);
- s16[5*i+2] = s16[5*i+3] = 0;
- s16[5*i+4] = convert (f[i+256]);
- }
- return 5*256;
-}
-
-static int a52_resample_2F_2R_to_4_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[4*i] = convert (f[i]);
- s16[4*i+1] = convert (f[i+256]);
- s16[4*i+2] = convert (f[i+512]);
- s16[4*i+3] = convert (f[i+768]);
- }
- return 4*256;
-}
-
-static int a52_resample_3F_2R_to_5_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[5*i] = convert (f[i]);
- s16[5*i+1] = convert (f[i+512]);
- s16[5*i+2] = convert (f[i+768]);
- s16[5*i+3] = convert (f[i+1024]);
- s16[5*i+4] = convert (f[i+256]);
- }
- return 5*256;
-}
-
-static int a52_resample_MONO_LFE_to_6_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[6*i] = s16[6*i+1] = s16[6*i+2] = s16[6*i+3] = 0;
- s16[6*i+4] = convert (f[i+256]);
- s16[6*i+5] = convert (f[i]);
- }
- return 6*256;
-}
-
-static int a52_resample_STEREO_LFE_to_6_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+512]);
- s16[6*i+2] = s16[6*i+3] = s16[6*i+4] = 0;
- s16[6*i+5] = convert (f[i]);
- }
- return 6*256;
-}
-
-static int a52_resample_3F_LFE_to_6_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+768]);
- s16[6*i+2] = s16[6*i+3] = 0;
- s16[6*i+4] = convert (f[i+512]);
- s16[6*i+5] = convert (f[i]);
- }
- return 6*256;
-}
-
-static int a52_resample_2F_2R_LFE_to_6_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+512]);
- s16[6*i+2] = convert (f[i+768]);
- s16[6*i+3] = convert (f[i+1024]);
- s16[6*i+4] = 0;
- s16[6*i+5] = convert (f[i]);
- }
- return 6*256;
-}
-
-static int a52_resample_3F_2R_LFE_to_6_C(float * _f, int16_t * s16){
- int i;
- int32_t * f = (int32_t *) _f;
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+768]);
- s16[6*i+2] = convert (f[i+1024]);
- s16[6*i+3] = convert (f[i+1280]);
- s16[6*i+4] = convert (f[i+512]);
- s16[6*i+5] = convert (f[i]);
- }
- return 6*256;
-}
-
-
-static void* a52_resample_C(int flags, int ch){
- switch (flags) {
- case A52_MONO:
- if(ch==5) return a52_resample_MONO_to_5_C;
- if(ch==1) return a52_resample_MONO_to_1_C;
- break;
- case A52_CHANNEL:
- case A52_STEREO:
- case A52_DOLBY:
- if(ch==2) return a52_resample_STEREO_to_2_C;
- break;
- case A52_3F:
- if(ch==5) return a52_resample_3F_to_5_C;
- break;
- case A52_2F2R:
- if(ch==4) return a52_resample_2F_2R_to_4_C;
- break;
- case A52_3F2R:
- if(ch==5) return a52_resample_3F_2R_to_5_C;
- break;
- case A52_MONO | A52_LFE:
- if(ch==6) return a52_resample_MONO_LFE_to_6_C;
- break;
- case A52_CHANNEL | A52_LFE:
- case A52_STEREO | A52_LFE:
- case A52_DOLBY | A52_LFE:
- if(ch==6) return a52_resample_STEREO_LFE_to_6_C;
- break;
- case A52_3F | A52_LFE:
- if(ch==6) return a52_resample_3F_LFE_to_6_C;
- break;
- case A52_2F2R | A52_LFE:
- if(ch==6) return a52_resample_2F_2R_LFE_to_6_C;
- break;
- case A52_3F2R | A52_LFE:
- if(ch==6) return a52_resample_3F_2R_LFE_to_6_C;
- break;
- }
- return NULL;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 20:44:11 +0000