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authorTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
committerTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
commit22e28216336da876e1fd17f380ce42eaf1446769 (patch)
tree444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libswresample/resample_template.c
parentae5e8541f6e06e64c28719467cdf366ac57aff31 (diff)
chasing indexing error
Diffstat (limited to 'ffmpeg/libswresample/resample_template.c')
-rw-r--r--ffmpeg/libswresample/resample_template.c211
1 files changed, 0 insertions, 211 deletions
diff --git a/ffmpeg/libswresample/resample_template.c b/ffmpeg/libswresample/resample_template.c
deleted file mode 100644
index 5bc12bc..0000000
--- a/ffmpeg/libswresample/resample_template.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * audio resampling
- * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
- *
- * 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
- */
-
-/**
- * @file
- * audio resampling
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#if defined(TEMPLATE_RESAMPLE_DBL)
-# define RENAME(N) N ## _double
-# define FILTER_SHIFT 0
-# define DELEM double
-# define FELEM double
-# define FELEM2 double
-# define FELEML double
-# define OUT(d, v) d = v
-
-#elif defined(TEMPLATE_RESAMPLE_FLT)
-# define RENAME(N) N ## _float
-# define FILTER_SHIFT 0
-# define DELEM float
-# define FELEM float
-# define FELEM2 float
-# define FELEML float
-# define OUT(d, v) d = v
-
-#elif defined(TEMPLATE_RESAMPLE_S32)
-# define RENAME(N) N ## _int32
-# define FILTER_SHIFT 30
-# define DELEM int32_t
-# define FELEM int32_t
-# define FELEM2 int64_t
-# define FELEML int64_t
-# define FELEM_MAX INT32_MAX
-# define FELEM_MIN INT32_MIN
-# define OUT(d, v) v = (v + (1<<(FILTER_SHIFT-1)))>>FILTER_SHIFT;\
- d = (uint64_t)(v + 0x80000000) > 0xFFFFFFFF ? (v>>63) ^ 0x7FFFFFFF : v
-
-#elif defined(TEMPLATE_RESAMPLE_S16) \
- || defined(TEMPLATE_RESAMPLE_S16_MMX2) \
- || defined(TEMPLATE_RESAMPLE_S16_SSSE3)
-
-# define FILTER_SHIFT 15
-# define DELEM int16_t
-# define FELEM int16_t
-# define FELEM2 int32_t
-# define FELEML int64_t
-# define FELEM_MAX INT16_MAX
-# define FELEM_MIN INT16_MIN
-# define OUT(d, v) v = (v + (1<<(FILTER_SHIFT-1)))>>FILTER_SHIFT;\
- d = (unsigned)(v + 32768) > 65535 ? (v>>31) ^ 32767 : v
-
-# if defined(TEMPLATE_RESAMPLE_S16)
-# define RENAME(N) N ## _int16
-# elif defined(TEMPLATE_RESAMPLE_S16_MMX2)
-# define COMMON_CORE COMMON_CORE_INT16_MMX2
-# define RENAME(N) N ## _int16_mmx2
-# elif defined(TEMPLATE_RESAMPLE_S16_SSSE3)
-# define COMMON_CORE COMMON_CORE_INT16_SSSE3
-# define RENAME(N) N ## _int16_ssse3
-# endif
-
-#endif
-
-int RENAME(swri_resample)(ResampleContext *c, DELEM *dst, const DELEM *src, int *consumed, int src_size, int dst_size, int update_ctx){
- int dst_index, i;
- int index= c->index;
- int frac= c->frac;
- int dst_incr_frac= c->dst_incr % c->src_incr;
- int dst_incr= c->dst_incr / c->src_incr;
- int compensation_distance= c->compensation_distance;
-
- av_assert1(c->filter_shift == FILTER_SHIFT);
- av_assert1(c->felem_size == sizeof(FELEM));
-
- if(compensation_distance == 0 && c->filter_length == 1 && c->phase_shift==0){
- int64_t index2= ((int64_t)index)<<32;
- int64_t incr= (1LL<<32) * c->dst_incr / c->src_incr;
- dst_size= FFMIN(dst_size, (src_size-1-index) * (int64_t)c->src_incr / c->dst_incr);
-
- for(dst_index=0; dst_index < dst_size; dst_index++){
- dst[dst_index] = src[index2>>32];
- index2 += incr;
- }
- index += dst_index * dst_incr;
- index += (frac + dst_index * (int64_t)dst_incr_frac) / c->src_incr;
- frac = (frac + dst_index * (int64_t)dst_incr_frac) % c->src_incr;
- av_assert2(index >= 0);
- *consumed= index >> c->phase_shift;
- index &= c->phase_mask;
- }else if(compensation_distance == 0 && !c->linear && index >= 0){
- int sample_index = 0;
- for(dst_index=0; dst_index < dst_size; dst_index++){
- FELEM *filter;
- sample_index += index >> c->phase_shift;
- index &= c->phase_mask;
- filter= ((FELEM*)c->filter_bank) + c->filter_alloc*index;
-
- if(sample_index + c->filter_length > src_size){
- break;
- }else{
-#ifdef COMMON_CORE
- COMMON_CORE
-#else
- FELEM2 val=0;
- for(i=0; i<c->filter_length; i++){
- val += src[sample_index + i] * (FELEM2)filter[i];
- }
- OUT(dst[dst_index], val);
-#endif
- }
-
- frac += dst_incr_frac;
- index += dst_incr;
- if(frac >= c->src_incr){
- frac -= c->src_incr;
- index++;
- }
- }
- *consumed = sample_index;
- }else{
- int sample_index = 0;
- for(dst_index=0; dst_index < dst_size; dst_index++){
- FELEM *filter;
- FELEM2 val=0;
-
- sample_index += index >> c->phase_shift;
- index &= c->phase_mask;
- filter = ((FELEM*)c->filter_bank) + c->filter_alloc*index;
-
- if(sample_index + c->filter_length > src_size || -sample_index >= src_size){
- break;
- }else if(sample_index < 0){
- for(i=0; i<c->filter_length; i++)
- val += src[FFABS(sample_index + i)] * (FELEM2)filter[i];
- }else if(c->linear){
- FELEM2 v2=0;
- for(i=0; i<c->filter_length; i++){
- val += src[sample_index + i] * (FELEM2)filter[i];
- v2 += src[sample_index + i] * (FELEM2)filter[i + c->filter_alloc];
- }
- val+=(v2-val)*(FELEML)frac / c->src_incr;
- }else{
- for(i=0; i<c->filter_length; i++){
- val += src[sample_index + i] * (FELEM2)filter[i];
- }
- }
-
- OUT(dst[dst_index], val);
-
- frac += dst_incr_frac;
- index += dst_incr;
- if(frac >= c->src_incr){
- frac -= c->src_incr;
- index++;
- }
-
- if(dst_index + 1 == compensation_distance){
- compensation_distance= 0;
- dst_incr_frac= c->ideal_dst_incr % c->src_incr;
- dst_incr= c->ideal_dst_incr / c->src_incr;
- }
- }
- *consumed= FFMAX(sample_index, 0);
- index += FFMIN(sample_index, 0) << c->phase_shift;
-
- if(compensation_distance){
- compensation_distance -= dst_index;
- av_assert1(compensation_distance > 0);
- }
- }
-
- if(update_ctx){
- c->frac= frac;
- c->index= index;
- c->dst_incr= dst_incr_frac + c->src_incr*dst_incr;
- c->compensation_distance= compensation_distance;
- }
-
- return dst_index;
-}
-
-#undef COMMON_CORE
-#undef RENAME
-#undef FILTER_SHIFT
-#undef DELEM
-#undef FELEM
-#undef FELEM2
-#undef FELEML
-#undef FELEM_MAX
-#undef FELEM_MIN
-#undef OUT