aacenc_is.c File Reference

AAC encoder Intensity Stereo. More...

#include "aacenc.h"
#include "aacenc_utils.h"
#include "aacenc_is.h"
#include "aacenc_quantization.h"

Go to the source code of this file.

Data Structures
struct	AACISError

Macros
#define	INT_STEREO_LOW_LIMIT   6100
	Frequency in Hz for lower limit of intensity stereo.

Functions
static struct AACISError	aac_is_encoding_err (AACEncContext *s, ChannelElement *cpe, int start, int w, int g, float ener0, float ener1, float ener01, int phase)
void	ff_aac_search_for_is (AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe)

Detailed Description

AAC encoder Intensity Stereo.

Author

Rostislav Pehlivanov ( atomnuker gmail com )

Definition in file aacenc_is.c.

Macro Definition Documentation

INT_STEREO_LOW_LIMIT

#define INT_STEREO_LOW_LIMIT   6100

Frequency in Hz for lower limit of intensity stereo.

Definition at line 34 of file aacenc_is.c.

Referenced by ff_aac_search_for_is().

Function Documentation

aac_is_encoding_err()

static struct AACISError aac_is_encoding_err ( AACEncContext * s, ChannelElement * cpe, int start, int w, int g, float ener0, float ener1, float ener01, int phase )

static

Definition at line 45 of file aacenc_is.c.

Referenced by aac_is_encoding_err(), and ff_aac_search_for_is().

ff_aac_search_for_is()

void ff_aac_search_for_is	(	AACEncContext *	s,
		AVCodecContext *	avctx,
		ChannelElement *	cpe )

Scout out next nonzero bands

Flip M/S mask and pick the other CB, since it encodes more efficiently

Definition at line 109 of file aacenc_is.c.