libavformat/mov_chan.h File Reference

#include <stdint.h>
#include "libavcodec/avcodec.h"

Go to the source code of this file.

Functions
uint64_t	ff_mov_get_channel_layout (uint32_t tag, uint32_t bitmap)
	mov 'chan' tag reading/writing.
uint32_t	ff_mov_get_channel_label (uint32_t label)
	Get the channel layout for the specified channel layout tag.
uint32_t	ff_mov_get_channel_layout_tag (enum CodecID codec_id, uint64_t channel_layout, uint32_t *bitmap)
	Get the channel layout tag for the specified codec id and channel layout.

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Function Documentation

uint32_t ff_mov_get_channel_label

(

uint32_t

label

)

Get the channel layout for the specified channel layout tag.

Parameters:

[in]

tag

channel label

Returns:

channel layout mask fragment

Definition at line 453 of file mov_chan.c.

Referenced by mov_read_chan().

uint64_t ff_mov_get_channel_layout	(	uint32_t	tag,
		uint32_t	bitmap
	)

mov 'chan' tag reading/writing.

Author:

Justin Ruggles Get the channel layout for the specified channel layout tag.

Parameters:

[in]	tag	channel layout tag
[out]	bitmap	channel bitmap (only used if needed)

Returns:

channel layout

Definition at line 426 of file mov_chan.c.

Referenced by mov_read_chan().

uint32_t ff_mov_get_channel_layout_tag	(	enum CodecID	codec_id,
		uint64_t	channel_layout,
		uint32_t *	bitmap
	)

Get the channel layout tag for the specified codec id and channel layout.

If the layout tag was not found, use a channel bitmap if possible.

Parameters:

[in]	codec_id	codec id
[in]	channel_layout	channel layout
[out]	bitmap	channel bitmap

Returns:

channel layout tag

Definition at line 466 of file mov_chan.c.

Referenced by mov_write_chan_tag().