Audio class. More...

#include "mlt_export.h"
#include "mlt_types.h"

Data Structures
struct	mlt_audio_s
	Audio class. More...

Functions
MLT_EXPORT void	mlt_audio_alloc_data (mlt_audio self)

MLT_EXPORT int	mlt_audio_calculate_frame_samples (float fps, int frequency, int64_t position)

MLT_EXPORT int64_t	mlt_audio_calculate_samples_to_position (float fps, int frequency, int64_t position)

MLT_EXPORT int	mlt_audio_calculate_size (mlt_audio self)

MLT_EXPORT int	mlt_audio_channel_layout_channels (mlt_channel_layout layout)

MLT_EXPORT mlt_channel_layout	mlt_audio_channel_layout_default (int channels)

MLT_EXPORT mlt_channel_layout	mlt_audio_channel_layout_id (const char *name)

MLT_EXPORT const char *	mlt_audio_channel_layout_name (mlt_channel_layout layout)
	Get the short name for a channel layout. More...

MLT_EXPORT void	mlt_audio_close (mlt_audio self)

MLT_EXPORT void	mlt_audio_copy (mlt_audio dst, mlt_audio src, int samples, int src_start, int dst_start)

MLT_EXPORT const char *	mlt_audio_format_name (mlt_audio_format format)

MLT_EXPORT int	mlt_audio_format_size (mlt_audio_format format, int samples, int channels)

MLT_EXPORT void	mlt_audio_free_data (mlt_audio self)

MLT_EXPORT void	mlt_audio_get_planes (mlt_audio self, uint8_t **planes)

MLT_EXPORT void	mlt_audio_get_values (mlt_audio self, void *data, int frequency, mlt_audio_format format, int samples, int *channels)

MLT_EXPORT mlt_audio	mlt_audio_new ()
	Allocate a new Audio object. More...

MLT_EXPORT int	mlt_audio_plane_count (mlt_audio self)

MLT_EXPORT int	mlt_audio_plane_size (mlt_audio self)

MLT_EXPORT void	mlt_audio_reverse (mlt_audio self)

MLT_EXPORT void	mlt_audio_set_values (mlt_audio self, void *data, int frequency, mlt_audio_format format, int samples, int channels)

MLT_EXPORT void	mlt_audio_shrink (mlt_audio self, int samples)

MLT_EXPORT void	mlt_audio_silence (mlt_audio self, int samples, int start)

Detailed Description

Audio class.

See also: mlt_audio_s

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Function Documentation

◆ mlt_audio_alloc_data()

MLT_EXPORT void mlt_audio_alloc_data ( mlt_audio self )

◆ mlt_audio_calculate_frame_samples()

MLT_EXPORT int mlt_audio_calculate_frame_samples	(	float	fps,
		int	frequency,
		int64_t	position
	)

◆ mlt_audio_calculate_samples_to_position()

MLT_EXPORT int64_t mlt_audio_calculate_samples_to_position	(	float	fps,
		int	frequency,
		int64_t	position
	)

◆ mlt_audio_calculate_size()

MLT_EXPORT int mlt_audio_calculate_size ( mlt_audio self )

◆ mlt_audio_channel_layout_channels()

MLT_EXPORT int mlt_audio_channel_layout_channels ( mlt_channel_layout layout )

◆ mlt_audio_channel_layout_default()

MLT_EXPORT mlt_channel_layout mlt_audio_channel_layout_default ( int channels )

◆ mlt_audio_channel_layout_id()

MLT_EXPORT mlt_channel_layout mlt_audio_channel_layout_id ( const char * name )

◆ mlt_audio_channel_layout_name()

MLT_EXPORT const char* mlt_audio_channel_layout_name ( mlt_channel_layout layout )

Get the short name for a channel layout.

You do not need to deallocate the returned string. \member of mlt_frame_s

Parameters

layout the channel layout

Returns: a string for the name of the channel layout

◆ mlt_audio_close()

MLT_EXPORT void mlt_audio_close ( mlt_audio self )

◆ mlt_audio_copy()

MLT_EXPORT void mlt_audio_copy	(	mlt_audio	dst,
		mlt_audio	src,
		int	samples,
		int	src_start,
		int	dst_start
	)

◆ mlt_audio_format_name()

MLT_EXPORT const char* mlt_audio_format_name ( mlt_audio_format format )

◆ mlt_audio_format_size()

MLT_EXPORT int mlt_audio_format_size	(	mlt_audio_format	format,
		int	samples,
		int	channels
	)

◆ mlt_audio_free_data()

MLT_EXPORT void mlt_audio_free_data ( mlt_audio self )

◆ mlt_audio_get_planes()

MLT_EXPORT void mlt_audio_get_planes	(	mlt_audio	self,
		uint8_t **	planes
	)

◆ mlt_audio_get_values()

MLT_EXPORT void mlt_audio_get_values	(	mlt_audio	self,
		void **	data,
		int *	frequency,
		mlt_audio_format *	format,
		int *	samples,
		int *	channels
	)

◆ mlt_audio_new()

MLT_EXPORT mlt_audio mlt_audio_new ( )

Allocate a new Audio object.

Returns: a new audio object with default values set

◆ mlt_audio_plane_count()

MLT_EXPORT int mlt_audio_plane_count ( mlt_audio self )

◆ mlt_audio_plane_size()

MLT_EXPORT int mlt_audio_plane_size ( mlt_audio self )

◆ mlt_audio_reverse()

MLT_EXPORT void mlt_audio_reverse ( mlt_audio self )

◆ mlt_audio_set_values()

MLT_EXPORT void mlt_audio_set_values	(	mlt_audio	self,
		void *	data,
		int	frequency,
		mlt_audio_format	format,
		int	samples,
		int	channels
	)

◆ mlt_audio_shrink()

MLT_EXPORT void mlt_audio_shrink	(	mlt_audio	self,
		int	samples
	)

◆ mlt_audio_silence()

MLT_EXPORT void mlt_audio_silence	(	mlt_audio	self,
		int	samples,
		int	start
	)

Data Structures

Functions