summaryrefslogtreecommitdiff
path: root/ffmpeg1/libavcodec/fmtconvert.c
diff options
context:
space:
mode:
authorTim Redfern <tim@eclectronics.org>2013-09-05 17:55:35 +0100
committerTim Redfern <tim@eclectronics.org>2013-09-05 17:55:35 +0100
commit741fb4b9e135cfb161a749db88713229038577bb (patch)
tree08bc9925659cbcac45162bacf31dc6336d4f60b4 /ffmpeg1/libavcodec/fmtconvert.c
parenta2e1bf3495b7bfefdaedb8fc737e969ab06df079 (diff)
making act segmenter
Diffstat (limited to 'ffmpeg1/libavcodec/fmtconvert.c')
-rw-r--r--ffmpeg1/libavcodec/fmtconvert.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/ffmpeg1/libavcodec/fmtconvert.c b/ffmpeg1/libavcodec/fmtconvert.c
deleted file mode 100644
index 79e9645..0000000
--- a/ffmpeg1/libavcodec/fmtconvert.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Format Conversion Utils
- * Copyright (c) 2000, 2001 Fabrice Bellard
- * Copyright (c) 2002-2004 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
- */
-
-#include "avcodec.h"
-#include "fmtconvert.h"
-#include "libavutil/common.h"
-
-static void int32_to_float_fmul_scalar_c(float *dst, const int *src, float mul, int len){
- int i;
- for(i=0; i<len; i++)
- dst[i] = src[i] * mul;
-}
-
-static av_always_inline int float_to_int16_one(const float *src){
- return av_clip_int16(lrintf(*src));
-}
-
-static void float_to_int16_c(int16_t *dst, const float *src, long len)
-{
- int i;
- for(i=0; i<len; i++)
- dst[i] = float_to_int16_one(src+i);
-}
-
-static void float_to_int16_interleave_c(int16_t *dst, const float **src,
- long len, int channels)
-{
- int i,j,c;
- if(channels==2){
- for(i=0; i<len; i++){
- dst[2*i] = float_to_int16_one(src[0]+i);
- dst[2*i+1] = float_to_int16_one(src[1]+i);
- }
- }else{
- for(c=0; c<channels; c++)
- for(i=0, j=c; i<len; i++, j+=channels)
- dst[j] = float_to_int16_one(src[c]+i);
- }
-}
-
-void ff_float_interleave_c(float *dst, const float **src, unsigned int len,
- int channels)
-{
- int j, c;
- unsigned int i;
- if (channels == 2) {
- for (i = 0; i < len; i++) {
- dst[2*i] = src[0][i];
- dst[2*i+1] = src[1][i];
- }
- } else if (channels == 1 && len < INT_MAX / sizeof(float)) {
- memcpy(dst, src[0], len * sizeof(float));
- } else {
- for (c = 0; c < channels; c++)
- for (i = 0, j = c; i < len; i++, j += channels)
- dst[j] = src[c][i];
- }
-}
-
-av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx)
-{
- c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_c;
- c->float_to_int16 = float_to_int16_c;
- c->float_to_int16_interleave = float_to_int16_interleave_c;
- c->float_interleave = ff_float_interleave_c;
-
- if (ARCH_ARM) ff_fmt_convert_init_arm(c, avctx);
- if (HAVE_ALTIVEC) ff_fmt_convert_init_altivec(c, avctx);
- if (ARCH_X86) ff_fmt_convert_init_x86(c, avctx);
- if (HAVE_MIPSFPU) ff_fmt_convert_init_mips(c);
-}
-
-/* ffdshow custom code */
-void float_interleave(float *dst, const float **src, long len, int channels)
-{
- int i,j,c;
- if(channels==2){
- for(i=0; i<len; i++){
- dst[2*i] = src[0][i] / 32768.0f;
- dst[2*i+1] = src[1][i] / 32768.0f;
- }
- }else{
- for(c=0; c<channels; c++)
- for(i=0, j=c; i<len; i++, j+=channels)
- dst[j] = src[c][i] / 32768.0f;
- }
-}
-
-void float_interleave_noscale(float *dst, const float **src, long len, int channels)
-{
- int i,j,c;
- if(channels==2){
- for(i=0; i<len; i++){
- dst[2*i] = src[0][i];
- dst[2*i+1] = src[1][i];
- }
- }else{
- for(c=0; c<channels; c++)
- for(i=0, j=c; i<len; i++, j+=channels)
- dst[j] = src[c][i];
- }
-}