avresample.h File Reference

external API header More...

#include "libavutil/avutil.h"
#include "libavutil/channel_layout.h"
#include "libavutil/dict.h"
#include "libavutil/frame.h"
#include "libavutil/log.h"
#include "libavutil/mathematics.h"
#include "libavresample/version.h"

Go to the source code of this file.

Macros
#define	AVRESAMPLE_MAX_CHANNELS   32

Enumerations
enum	AVMixCoeffType { AV_MIX_COEFF_TYPE_Q8, AV_MIX_COEFF_TYPE_Q15, AV_MIX_COEFF_TYPE_FLT, AV_MIX_COEFF_TYPE_NB }
	Mixing Coefficient Types. More...
enum	AVResampleFilterType { AV_RESAMPLE_FILTER_TYPE_CUBIC, AV_RESAMPLE_FILTER_TYPE_BLACKMAN_NUTTALL, AV_RESAMPLE_FILTER_TYPE_KAISER }
	Resampling Filter Types. More...
enum	AVResampleDitherMethod {   AV_RESAMPLE_DITHER_NONE, AV_RESAMPLE_DITHER_RECTANGULAR, AV_RESAMPLE_DITHER_TRIANGULAR, AV_RESAMPLE_DITHER_TRIANGULAR_HP,   AV_RESAMPLE_DITHER_TRIANGULAR_NS, AV_RESAMPLE_DITHER_NB }

Functions
unsigned	avresample_version (void)
	Return the LIBAVRESAMPLE_VERSION_INT constant.
const char *	avresample_configuration (void)
	Return the libavresample build-time configuration.
const char *	avresample_license (void)
	Return the libavresample license.
const AVClass *	avresample_get_class (void)
	Get the AVClass for AVAudioResampleContext.
AVAudioResampleContext *	avresample_alloc_context (void)
	Allocate AVAudioResampleContext and set options.
int	avresample_open (AVAudioResampleContext *avr)
	Initialize AVAudioResampleContext.
int	avresample_is_open (AVAudioResampleContext *avr)
	Check whether an AVAudioResampleContext is open or closed.
void	avresample_close (AVAudioResampleContext *avr)
	Close AVAudioResampleContext.
void	avresample_free (AVAudioResampleContext **avr)
	Free AVAudioResampleContext and associated AVOption values.
int	avresample_build_matrix (uint64_t in_layout, uint64_t out_layout, double center_mix_level, double surround_mix_level, double lfe_mix_level, int normalize, double *matrix, int stride, enum AVMatrixEncoding matrix_encoding)
	Generate a channel mixing matrix.
int	avresample_get_matrix (AVAudioResampleContext *avr, double *matrix, int stride)
	Get the current channel mixing matrix.
int	avresample_set_matrix (AVAudioResampleContext *avr, const double *matrix, int stride)
	Set channel mixing matrix.
int	avresample_set_channel_mapping (AVAudioResampleContext *avr, const int *channel_map)
	Set a customized input channel mapping.
int	avresample_set_compensation (AVAudioResampleContext *avr, int sample_delta, int compensation_distance)
	Set compensation for resampling.
int	avresample_get_out_samples (AVAudioResampleContext *avr, int in_nb_samples)
	Provide the upper bound on the number of samples the configured conversion would output.
int	avresample_convert (AVAudioResampleContext *avr, uint8_t **output, int out_plane_size, int out_samples, uint8_t **input, int in_plane_size, int in_samples)
	Convert input samples and write them to the output FIFO.
int	avresample_get_delay (AVAudioResampleContext *avr)
	Return the number of samples currently in the resampling delay buffer.
int	avresample_available (AVAudioResampleContext *avr)
	Return the number of available samples in the output FIFO.
int	avresample_read (AVAudioResampleContext *avr, uint8_t **output, int nb_samples)
	Read samples from the output FIFO.
int	avresample_convert_frame (AVAudioResampleContext *avr, AVFrame *output, AVFrame *input)
	Convert the samples in the input AVFrame and write them to the output AVFrame.
int	avresample_config (AVAudioResampleContext *avr, AVFrame *out, AVFrame *in)
	Configure or reconfigure the AVAudioResampleContext using the information provided by the AVFrames.

Detailed Description

external API header

Definition in file avresample.h.