- av_get_alt_sample_fmt
AVSampleFormat av_get_alt_sample_fmt(AVSampleFormat sample_fmt, int planar)
Return the planar<->packed alternative form of the given sample format, or
AV_SAMPLE_FMT_NONE on error. If the passed sample_fmt is already in the
requested planar/packed format, the format returned is the same as the
input.
- av_get_bits_per_sample_fmt
deprecated int av_get_bits_per_sample_fmt(AVSampleFormat sample_fmt)
@deprecated Use av_get_bytes_per_sample() instead.
- av_get_bytes_per_sample
int av_get_bytes_per_sample(AVSampleFormat sample_fmt)
Return number of bytes per sample.
- av_get_packed_sample_fmt
AVSampleFormat av_get_packed_sample_fmt(AVSampleFormat sample_fmt)
Get the packed alternative form of the given sample format.
- av_get_planar_sample_fmt
AVSampleFormat av_get_planar_sample_fmt(AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
- av_get_sample_fmt
AVSampleFormat av_get_sample_fmt(char* name)
Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE
on error.
- av_get_sample_fmt_name
char* av_get_sample_fmt_name(AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not
recognized.
- av_get_sample_fmt_string
char* av_get_sample_fmt_string(char* buf, int buf_size, AVSampleFormat sample_fmt)
Generate a string corresponding to the sample format with
sample_fmt, or a header if sample_fmt is negative.
- av_sample_fmt_is_planar
int av_sample_fmt_is_planar(AVSampleFormat sample_fmt)
Check if the sample format is planar.
- av_samples_alloc
int av_samples_alloc(ubyte** audio_data, int* linesize, int nb_channels, int nb_samples, AVSampleFormat sample_fmt, int alignment)
Allocate a samples buffer for nb_samples samples, and fill data pointers and
linesize accordingly.
The allocated samples buffer can be freed by using av_freep(&audio_data[0])
- av_samples_copy
int av_samples_copy(ubyte** dst, uint** src, int dst_offset, int src_offset, int nb_samples, int nb_channels, AVSampleFormat sample_fmt)
Copy samples from src to dst.
- av_samples_fill_arrays
int av_samples_fill_arrays(uint** audio_data, int* linesize, uint* buf, int nb_channels, int nb_samples, AVSampleFormat sample_fmt, int alignment)
Fill channel data pointers and linesize for samples with sample
format sample_fmt.
- av_samples_get_buffer_size
int av_samples_get_buffer_size(int* linesize, int nb_channels, int nb_samples, AVSampleFormat sample_fmt, int alignment)
Get the required buffer size for the given audio parameters.
- av_samples_set_silence
int av_samples_set_silence(ubyte** audio_data, int offset, int nb_samples, int nb_channels, AVSampleFormat sample_fmt)
Fill an audio buffer with silence.