AVAudioFifo Struct Reference

Context for an Audio FIFO Buffer. More...

Data Fields
AVFifoBuffer **	buf
	single buffer for interleaved, per-channel buffers for planar More...
int	nb_buffers
	number of buffers More...
int	nb_samples
	number of samples currently in the FIFO More...
int	allocated_samples
	current allocated size, in samples More...
int	channels
	number of channels More...
enum AVSampleFormat	sample_fmt
	sample format More...
int	sample_size
	size, in bytes, of one sample in a buffer More...

Detailed Description

Context for an Audio FIFO Buffer.

• Operates at the sample level rather than the byte level.
• Supports multiple channels with either planar or packed sample format.
• Automatic reallocation when writing to a full buffer.

Examples:

transcode_aac.c.

Definition at line 34 of file audio_fifo.c.

Field Documentation

AVFifoBuffer** AVAudioFifo::buf

single buffer for interleaved, per-channel buffers for planar

Definition at line 35 of file audio_fifo.c.

Referenced by av_audio_fifo_alloc(), av_audio_fifo_drain(), av_audio_fifo_free(), av_audio_fifo_peek(), av_audio_fifo_peek_at(), av_audio_fifo_read(), av_audio_fifo_realloc(), av_audio_fifo_reset(), and av_audio_fifo_write().

int AVAudioFifo::nb_buffers

number of buffers

Definition at line 36 of file audio_fifo.c.

Referenced by av_audio_fifo_alloc(), av_audio_fifo_drain(), av_audio_fifo_free(), av_audio_fifo_peek(), av_audio_fifo_peek_at(), av_audio_fifo_read(), av_audio_fifo_realloc(), av_audio_fifo_reset(), av_audio_fifo_write(), free_data_planes(), read_samples_from_audio_fifo(), and write_samples_to_audio_fifo().

int AVAudioFifo::nb_samples

number of samples currently in the FIFO

Definition at line 37 of file audio_fifo.c.

Referenced by av_audio_fifo_drain(), av_audio_fifo_peek(), av_audio_fifo_peek_at(), av_audio_fifo_read(), av_audio_fifo_reset(), av_audio_fifo_size(), av_audio_fifo_space(), av_audio_fifo_write(), read_samples_from_audio_fifo(), and test_function().

int AVAudioFifo::allocated_samples

current allocated size, in samples

Definition at line 38 of file audio_fifo.c.

Referenced by av_audio_fifo_alloc(), av_audio_fifo_realloc(), and av_audio_fifo_space().

int AVAudioFifo::channels

number of channels

Definition at line 40 of file audio_fifo.c.

Referenced by av_audio_fifo_alloc(), av_audio_fifo_realloc(), and read_samples_from_audio_fifo().

enum AVSampleFormat AVAudioFifo::sample_fmt

sample format

Definition at line 41 of file audio_fifo.c.

Referenced by av_audio_fifo_alloc(), av_audio_fifo_realloc(), and read_samples_from_audio_fifo().

int AVAudioFifo::sample_size

size, in bytes, of one sample in a buffer

Definition at line 42 of file audio_fifo.c.

Referenced by av_audio_fifo_alloc(), av_audio_fifo_drain(), av_audio_fifo_peek(), av_audio_fifo_peek_at(), av_audio_fifo_read(), av_audio_fifo_write(), read_samples_from_audio_fifo(), and write_samples_to_audio_fifo().

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The documentation for this struct was generated from the following file:

• libavutil/audio_fifo.c