forked from KolibriOS/kolibrios
ffmpeg-2.8.5
git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
116
contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavresample/internal.h
Normal file
116
contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavresample/internal.h
Normal file
@@ -0,0 +1,116 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
|
||||
*
|
||||
* 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 AVRESAMPLE_INTERNAL_H
|
||||
#define AVRESAMPLE_INTERNAL_H
|
||||
|
||||
#include "libavutil/audio_fifo.h"
|
||||
#include "libavutil/log.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "libavutil/samplefmt.h"
|
||||
#include "avresample.h"
|
||||
|
||||
typedef struct AudioData AudioData;
|
||||
typedef struct AudioConvert AudioConvert;
|
||||
typedef struct AudioMix AudioMix;
|
||||
typedef struct ResampleContext ResampleContext;
|
||||
|
||||
enum RemapPoint {
|
||||
REMAP_NONE,
|
||||
REMAP_IN_COPY,
|
||||
REMAP_IN_CONVERT,
|
||||
REMAP_OUT_COPY,
|
||||
REMAP_OUT_CONVERT,
|
||||
};
|
||||
|
||||
typedef struct ChannelMapInfo {
|
||||
int channel_map[AVRESAMPLE_MAX_CHANNELS]; /**< source index of each output channel, -1 if not remapped */
|
||||
int do_remap; /**< remap needed */
|
||||
int channel_copy[AVRESAMPLE_MAX_CHANNELS]; /**< dest index to copy from */
|
||||
int do_copy; /**< copy needed */
|
||||
int channel_zero[AVRESAMPLE_MAX_CHANNELS]; /**< dest index to zero */
|
||||
int do_zero; /**< zeroing needed */
|
||||
int input_map[AVRESAMPLE_MAX_CHANNELS]; /**< dest index of each input channel */
|
||||
} ChannelMapInfo;
|
||||
|
||||
struct AVAudioResampleContext {
|
||||
const AVClass *av_class; /**< AVClass for logging and AVOptions */
|
||||
|
||||
uint64_t in_channel_layout; /**< input channel layout */
|
||||
enum AVSampleFormat in_sample_fmt; /**< input sample format */
|
||||
int in_sample_rate; /**< input sample rate */
|
||||
uint64_t out_channel_layout; /**< output channel layout */
|
||||
enum AVSampleFormat out_sample_fmt; /**< output sample format */
|
||||
int out_sample_rate; /**< output sample rate */
|
||||
enum AVSampleFormat internal_sample_fmt; /**< internal sample format */
|
||||
enum AVMixCoeffType mix_coeff_type; /**< mixing coefficient type */
|
||||
double center_mix_level; /**< center mix level */
|
||||
double surround_mix_level; /**< surround mix level */
|
||||
double lfe_mix_level; /**< lfe mix level */
|
||||
int normalize_mix_level; /**< enable mix level normalization */
|
||||
int force_resampling; /**< force resampling */
|
||||
int filter_size; /**< length of each FIR filter in the resampling filterbank relative to the cutoff frequency */
|
||||
int phase_shift; /**< log2 of the number of entries in the resampling polyphase filterbank */
|
||||
int linear_interp; /**< if 1 then the resampling FIR filter will be linearly interpolated */
|
||||
double cutoff; /**< resampling cutoff frequency. 1.0 corresponds to half the output sample rate */
|
||||
enum AVResampleFilterType filter_type; /**< resampling filter type */
|
||||
int kaiser_beta; /**< beta value for Kaiser window (only applicable if filter_type == AV_FILTER_TYPE_KAISER) */
|
||||
enum AVResampleDitherMethod dither_method; /**< dither method */
|
||||
|
||||
int in_channels; /**< number of input channels */
|
||||
int out_channels; /**< number of output channels */
|
||||
int resample_channels; /**< number of channels used for resampling */
|
||||
int downmix_needed; /**< downmixing is needed */
|
||||
int upmix_needed; /**< upmixing is needed */
|
||||
int mixing_needed; /**< either upmixing or downmixing is needed */
|
||||
int resample_needed; /**< resampling is needed */
|
||||
int in_convert_needed; /**< input sample format conversion is needed */
|
||||
int out_convert_needed; /**< output sample format conversion is needed */
|
||||
int in_copy_needed; /**< input data copy is needed */
|
||||
|
||||
AudioData *in_buffer; /**< buffer for converted input */
|
||||
AudioData *resample_out_buffer; /**< buffer for output from resampler */
|
||||
AudioData *out_buffer; /**< buffer for converted output */
|
||||
AVAudioFifo *out_fifo; /**< FIFO for output samples */
|
||||
|
||||
AudioConvert *ac_in; /**< input sample format conversion context */
|
||||
AudioConvert *ac_out; /**< output sample format conversion context */
|
||||
ResampleContext *resample; /**< resampling context */
|
||||
AudioMix *am; /**< channel mixing context */
|
||||
enum AVMatrixEncoding matrix_encoding; /**< matrixed stereo encoding */
|
||||
|
||||
/**
|
||||
* mix matrix
|
||||
* only used if avresample_set_matrix() is called before avresample_open()
|
||||
*/
|
||||
double *mix_matrix;
|
||||
|
||||
int use_channel_map;
|
||||
enum RemapPoint remap_point;
|
||||
ChannelMapInfo ch_map_info;
|
||||
};
|
||||
|
||||
|
||||
void ff_audio_resample_init_aarch64(ResampleContext *c,
|
||||
enum AVSampleFormat sample_fmt);
|
||||
void ff_audio_resample_init_arm(ResampleContext *c,
|
||||
enum AVSampleFormat sample_fmt);
|
||||
|
||||
#endif /* AVRESAMPLE_INTERNAL_H */
|
||||
Reference in New Issue
Block a user