FFmpeg  4.0
Enumerations | Functions
samplefmt.h File Reference
#include <stdint.h>
#include "avutil.h"
#include "attributes.h"

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Enumerations

enum  AVSampleFormat {
  AV_SAMPLE_FMT_NONE = -1, AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32,
  AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8P, AV_SAMPLE_FMT_S16P,
  AV_SAMPLE_FMT_S32P, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP, AV_SAMPLE_FMT_S64,
  AV_SAMPLE_FMT_S64P, AV_SAMPLE_FMT_NB
}
 Audio sample formats. More...
 

Functions

const char * av_get_sample_fmt_name (enum AVSampleFormat sample_fmt)
 Return the name of sample_fmt, or NULL if sample_fmt is not recognized. More...
 
enum AVSampleFormat av_get_sample_fmt (const char *name)
 Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE on error. More...
 
enum AVSampleFormat av_get_alt_sample_fmt (enum AVSampleFormat sample_fmt, int planar)
 Return the planar<->packed alternative form of the given sample format, or AV_SAMPLE_FMT_NONE on error. More...
 
enum AVSampleFormat av_get_packed_sample_fmt (enum AVSampleFormat sample_fmt)
 Get the packed alternative form of the given sample format. More...
 
enum AVSampleFormat av_get_planar_sample_fmt (enum AVSampleFormat sample_fmt)
 Get the planar alternative form of the given sample format. More...
 
char * av_get_sample_fmt_string (char *buf, int buf_size, enum AVSampleFormat sample_fmt)
 Generate a string corresponding to the sample format with sample_fmt, or a header if sample_fmt is negative. More...
 
int av_get_bytes_per_sample (enum AVSampleFormat sample_fmt)
 Return number of bytes per sample. More...
 
int av_sample_fmt_is_planar (enum AVSampleFormat sample_fmt)
 Check if the sample format is planar. More...
 
int av_samples_get_buffer_size (int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
 Get the required buffer size for the given audio parameters. More...
 
int av_samples_fill_arrays (uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
 Fill plane data pointers and linesize for samples with sample format sample_fmt. More...
 
int av_samples_alloc (uint8_t **audio_data, int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
 Allocate a samples buffer for nb_samples samples, and fill data pointers and linesize accordingly. More...
 
int av_samples_alloc_array_and_samples (uint8_t ***audio_data, int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
 Allocate a data pointers array, samples buffer for nb_samples samples, and fill data pointers and linesize accordingly. More...
 
int av_samples_copy (uint8_t **dst, uint8_t *const *src, int dst_offset, int src_offset, int nb_samples, int nb_channels, enum AVSampleFormat sample_fmt)
 Copy samples from src to dst. More...
 
int av_samples_set_silence (uint8_t **audio_data, int offset, int nb_samples, int nb_channels, enum AVSampleFormat sample_fmt)
 Fill an audio buffer with silence. More...