audio.h File Reference

#include "avfilter.h"
#include "internal.h"

Go to the source code of this file.

Functions
AVFrame *	ff_default_get_audio_buffer (AVFilterLink *link, int nb_samples)
	default handler for get_audio_buffer() for audio inputs More...
AVFrame *	ff_null_get_audio_buffer (AVFilterLink *link, int nb_samples)
	get_audio_buffer() handler for filters which simply pass audio along More...
AVFrame *	ff_get_audio_buffer (AVFilterLink *link, int nb_samples)
	Request an audio samples buffer with a specific set of permissions. More...

Variables
static enum AVSampleFormat	ff_packed_sample_fmts_array []
static enum AVSampleFormat	ff_planar_sample_fmts_array []

Function Documentation

ff_default_get_audio_buffer()

AVFrame* ff_default_get_audio_buffer	(	AVFilterLink *	link,
		int	nb_samples
	)

default handler for get_audio_buffer() for audio inputs

Definition at line 38 of file audio.c.

Referenced by ff_get_audio_buffer().

ff_null_get_audio_buffer()

AVFrame* ff_null_get_audio_buffer	(	AVFilterLink *	link,
		int	nb_samples
	)

get_audio_buffer() handler for filters which simply pass audio along

Definition at line 33 of file audio.c.

Referenced by init().

ff_get_audio_buffer()

AVFrame* ff_get_audio_buffer	(	AVFilterLink *	link,
		int	nb_samples
	)

Request an audio samples buffer with a specific set of permissions.

Parameters

link	the output link to the filter from which the buffer will be requested
nb_samples	the number of samples per channel

Returns

A reference to the samples. This must be unreferenced with avfilter_unref_buffer when you are finished with it.

Definition at line 86 of file audio.c.

Referenced by compand_delay(), compand_drain(), compand_nodelay(), compressor(), config_input(), config_output(), convert_coeffs(), ff_inlink_make_frame_writable(), ff_null_get_audio_buffer(), filter_frame(), fir_frame(), flush_buffer(), flush_frame(), gate(), get_audio_buffer(), headphone_frame(), output_frame(), plot_spectrum_column(), push_samples(), request_frame(), return_audio_frame(), send_silence(), take_samples(), and try_push_frame().

Variable Documentation

ff_packed_sample_fmts_array

enum AVSampleFormat ff_packed_sample_fmts_array[]

static

Initial value:

= {
    AV_SAMPLE_FMT_U8,
    AV_SAMPLE_FMT_S16,
    AV_SAMPLE_FMT_S32,
    AV_SAMPLE_FMT_FLT,
    AV_SAMPLE_FMT_DBL,
    AV_SAMPLE_FMT_NONE
}

Definition at line 28 of file audio.h.

Referenced by query_formats().

ff_planar_sample_fmts_array

enum AVSampleFormat ff_planar_sample_fmts_array[]

static

Initial value:

= {
    AV_SAMPLE_FMT_U8P,
    AV_SAMPLE_FMT_S16P,
    AV_SAMPLE_FMT_S32P,
    AV_SAMPLE_FMT_FLTP,
    AV_SAMPLE_FMT_DBLP,
    AV_SAMPLE_FMT_NONE
}

Definition at line 37 of file audio.h.