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_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.

 

enum AVSampleFormat  av_get_sample_fmt (const char *name)

  Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE on error.

 

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.

 

enum AVSampleFormat  av_get_packed_sample_fmt (enum AVSampleFormat sample_fmt)

  Get the packed alternative form of the given sample format.

 

enum AVSampleFormat  av_get_planar_sample_fmt (enum AVSampleFormat sample_fmt)

  Get the planar alternative form of the given sample format.

 

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.

 

attribute_deprecated int  av_get_bits_per_sample_fmt (enum AVSampleFormat sample_fmt)

 

int  av_get_bytes_per_sample (enum AVSampleFormat sample_fmt)

  Return number of bytes per sample.

 

int  av_sample_fmt_is_planar (enum AVSampleFormat sample_fmt)

  Check if the sample format is planar.

 

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.

 

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.

 

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.

 

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.

 

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.

 

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.