libavcodec/ac3enc_float.c File Reference

floating-point AC-3 encoder. More...

#include "ac3enc.h"
#include "eac3enc.h"
#include "kbdwin.h"
#include "ac3enc_template.c"

Go to the source code of this file.

Defines
#define	CONFIG_AC3ENC_FLOAT   1
Functions
av_cold void	ff_ac3_float_mdct_end (AC3MDCTContext *mdct)
	Finalize MDCT and free allocated memory.
av_cold int	ff_ac3_float_mdct_init (AVCodecContext *avctx, AC3MDCTContext *mdct, int nbits)
	Initialize MDCT tables.
void	ff_ac3_float_apply_window (DSPContext *dsp, float *output, const float *input, const float *window, unsigned int len)
	Apply KBD window to input samples prior to MDCT.
void	ff_ac3_float_scale_coefficients (AC3EncodeContext *s)
	Scale MDCT coefficients from float to 24-bit fixed-point.

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Detailed Description

floating-point AC-3 encoder.

Definition in file ac3enc_float.c.

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Define Documentation

#define CONFIG_AC3ENC_FLOAT   1

Definition at line 29 of file ac3enc_float.c.

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Function Documentation

void ff_ac3_float_apply_window	(	DSPContext *	dsp,
		float *	output,
		const float *	input,
		const float *	window,
		unsigned int	len
	)

Apply KBD window to input samples prior to MDCT.

Definition at line 85 of file ac3enc_float.c.

av_cold void ff_ac3_float_mdct_end

(

AC3MDCTContext *

mdct

)

Finalize MDCT and free allocated memory.

Definition at line 48 of file ac3enc_float.c.

Referenced by ff_ac3_encode_init().

av_cold int ff_ac3_float_mdct_init	(	AVCodecContext *	avctx,
		AC3MDCTContext *	mdct,
		int	nbits
	)

Initialize MDCT tables.

Parameters:

nbits

log2(MDCT size)

Definition at line 59 of file ac3enc_float.c.

Referenced by ff_ac3_encode_init().

void ff_ac3_float_scale_coefficients

(

AC3EncodeContext *

s

)

Scale MDCT coefficients from float to 24-bit fixed-point.

Definition at line 96 of file ac3enc_float.c.

Referenced by ff_ac3_encode_init().