hvirtual/quicktime/ffmpeg/libavcodec/a52dec.c File Reference

#include "avcodec.h"
#include "liba52/a52.h"

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Data Structures
struct	AC3DecodeState
Defines
#define	HEADER_SIZE   7
Functions
static int	a52_decode_init (AVCodecContext *avctx)
static int	blah (int32_t i)
static void	float_to_int (float *_f, int16_t *s16, int nchannels)
static int	a52_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int	a52_decode_end (AVCodecContext *avctx)
Variables
AVCodec	ac3_decoder

---

Detailed Description

A52 decoder.

Definition in file a52dec.c.

---

Define Documentation

#define HEADER_SIZE   7

Definition at line 147 of file a52dec.c.

Referenced by a52_decode_frame(), ac3_decode_frame(), decode_frame(), decode_frame_adu(), decode_frame_mp3on4(), dts_decode_frame(), mp_decode_frame(), and wmx2_samples_to_bytes().

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Function Documentation

static int a52_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 236 of file a52dec.c.

References AC3DecodeState::a52_free, dlclose, AC3DecodeState::handle, AVCodecContext::priv_data, s, and AC3DecodeState::state.

static int a52_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 149 of file a52dec.c.

References A52_ADJUST_LEVEL, AC3DecodeState::a52_block, AC3DecodeState::a52_frame, A52_LFE, A52_MONO, A52_STEREO, AC3DecodeState::a52_syncinfo, av_log(), AV_LOG_ERROR, AVCodecContext::bit_rate, bit_rate, AVCodecContext::channels, AC3DecodeState::channels, AC3DecodeState::flags, float_to_int(), AC3DecodeState::frame_size, HEADER_SIZE, AC3DecodeState::inbuf, AC3DecodeState::inbuf_ptr, level, memcpy, AVCodecContext::priv_data, s, AVCodecContext::sample_rate, AC3DecodeState::samples, and AC3DecodeState::state.

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static int a52_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 81 of file a52dec.c.

References a52_block(), AC3DecodeState::a52_block, a52_frame(), AC3DecodeState::a52_frame, a52_free(), AC3DecodeState::a52_free, a52_init(), AC3DecodeState::a52_init, a52_samples(), AC3DecodeState::a52_samples, a52_syncinfo(), AC3DecodeState::a52_syncinfo, dlclose, dlopen, fprintf, AC3DecodeState::frame_size, AC3DecodeState::handle, AC3DecodeState::inbuf, AC3DecodeState::inbuf_ptr, AVCodecContext::priv_data, s, AC3DecodeState::samples, and AC3DecodeState::state.

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static int blah

(

int32_t

i

)

[inline, static]

Definition at line 123 of file a52dec.c.

Referenced by float_to_int().

static void float_to_int	(	float *	_f,
		int16_t *	s16,
		int	nchannels
	)			[inline, static]

Definition at line 132 of file a52dec.c.

References blah(), and c.

Referenced by a52_decode_frame(), and ac3_decode_frame().

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Variable Documentation

AVCodec ac3_decoder

Initial value:

 {
    "ac3",
    CODEC_TYPE_AUDIO,
    CODEC_ID_AC3,
    sizeof(AC3DecodeState),
    a52_decode_init,
    NULL,
    a52_decode_end,
    a52_decode_frame,
}

Definition at line 246 of file a52dec.c.

Referenced by avcodec_register_all().