mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-15 03:23:32 +02:00
75a37b57a5
* qatar/master: APIchanges: fill in date and commit for request_sample_fmt Add floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders. Add support for request_sample_format in ffmpeg and ffplay. Add APIchanges entry for request_sample_fmt. Add request_sample_fmt field to AVCodecContext. Add float_interleave() to FmtConvertContext with x86-optimized versions. Remove unused make variable SEEK_REFFILE fate: remove redundant aref and vref references fate: remove do_ffmpeg_nocheck function fate: do not collect -benchmark output mpegaudiodec: remove decode_end() function fate: run aref and vref as regular tests mpegaudio: sanitise compute_antialias_* names mpeg12: add slice-threading checks to slice-threading initializers. h264: copy pixel_shift between slice threading contexts. mdec: enable frame-level multithreading. mdec.c: fix overread. Conflicts: libavcodec/aacdec.c libavcodec/ac3dec.c libavcodec/avcodec.h libavcodec/dca.c libavcodec/h264.c libavcodec/mdec.c libavcodec/mpeg12.c libavcodec/options.c libavcodec/version.h libavcodec/vorbisdec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef AVCODEC_FMTCONVERT_H
|
|
#define AVCODEC_FMTCONVERT_H
|
|
|
|
#include "avcodec.h"
|
|
|
|
typedef struct FmtConvertContext {
|
|
/**
|
|
* Convert an array of int32_t to float and multiply by a float value.
|
|
* @param dst destination array of float.
|
|
* constraints: 16-byte aligned
|
|
* @param src source array of int32_t.
|
|
* constraints: 16-byte aligned
|
|
* @param len number of elements to convert.
|
|
* constraints: multiple of 8
|
|
*/
|
|
void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len);
|
|
|
|
/**
|
|
* Convert an array of float to an array of int16_t.
|
|
*
|
|
* Convert floats from in the range [-32768.0,32767.0] to ints
|
|
* without rescaling
|
|
*
|
|
* @param dst destination array of int16_t.
|
|
* constraints: 16-byte aligned
|
|
* @param src source array of float.
|
|
* constraints: 16-byte aligned
|
|
* @param len number of elements to convert.
|
|
* constraints: multiple of 8
|
|
*/
|
|
void (*float_to_int16)(int16_t *dst, const float *src, long len);
|
|
|
|
/**
|
|
* Convert multiple arrays of float to an interleaved array of int16_t.
|
|
*
|
|
* Convert floats from in the range [-32768.0,32767.0] to ints
|
|
* without rescaling
|
|
*
|
|
* @param dst destination array of interleaved int16_t.
|
|
* constraints: 16-byte aligned
|
|
* @param src source array of float arrays, one for each channel.
|
|
* constraints: 16-byte aligned
|
|
* @param len number of elements to convert.
|
|
* constraints: multiple of 8
|
|
* @param channels number of channels
|
|
*/
|
|
void (*float_to_int16_interleave)(int16_t *dst, const float **src,
|
|
long len, int channels);
|
|
|
|
/**
|
|
* Convert an array of interleaved float to multiple arrays of float.
|
|
*/
|
|
void (*float_interleave)(float *dst, const float **src, unsigned int len,
|
|
int channels);
|
|
} FmtConvertContext;
|
|
|
|
void ff_float_interleave_c(float *dst, const float **src, unsigned int len,
|
|
int channels);
|
|
|
|
void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx);
|
|
|
|
void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx);
|
|
void ff_fmt_convert_init_altivec(FmtConvertContext *c, AVCodecContext *avctx);
|
|
void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx);
|
|
|
|
/* ffdshow custom code */
|
|
void float_interleave(float *dst, const float **src, long len, int channels);
|
|
void float_interleave_noscale(float *dst, const float **src, long len, int channels);
|
|
|
|
#endif /* AVCODEC_FMTCONVERT_H */
|