audio.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"

Go to the source code of this file.

Macros
#define	BUFFER_ALIGN   0

Functions
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_default_get_audio_buffer (AVFilterLink *link, int nb_samples)
	default handler for get_audio_buffer() for audio inputs More...
AVFrame *	ff_get_audio_buffer (AVFilterLink *link, int nb_samples)
	Request an audio samples buffer with a specific set of permissions. More...

Macro Definition Documentation

#define BUFFER_ALIGN   0

Definition at line 30 of file audio.c.

Referenced by ff_default_get_audio_buffer().

Function Documentation

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().

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().

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(), config_input(), config_output(), convert_coeffs(), ff_inlink_make_frame_writable(), ff_null_get_audio_buffer(), filter_frame(), fir_frame(), flush_buffer(), flush_frame(), get_audio_buffer(), headphone_frame(), output_frame(), push_samples(), request_frame(), return_audio_frame(), send_silence(), take_samples(), and try_push_frame().