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

#include "avcodec.h"
#include <gsm.h>

Include dependency graph for libgsm.c:

Go to the source code of this file.

Defines
#define	GSM_BLOCK_SIZE   33
#define	GSM_FRAME_SIZE   160
Functions
static int	libgsm_init (AVCodecContext *avctx)
static int	libgsm_close (AVCodecContext *avctx)
static int	libgsm_encode_frame (AVCodecContext *avctx, unsigned char *frame, int buf_size, void *data)
static int	libgsm_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
Variables
AVCodec	libgsm_encoder
AVCodec	libgsm_decoder

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Detailed Description

Interface to libgsm for gsm encoding/decoding

Definition in file libgsm.c.

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Define Documentation

#define GSM_BLOCK_SIZE   33

Definition at line 29 of file libgsm.c.

Referenced by libgsm_decode_frame(), libgsm_encode_frame(), and libgsm_init().

#define GSM_FRAME_SIZE   160

Definition at line 30 of file libgsm.c.

Referenced by libgsm_decode_frame(), and libgsm_init().

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Function Documentation

static int libgsm_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 47 of file libgsm.c.

References NULL, and AVCodecContext::priv_data.

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

Definition at line 74 of file libgsm.c.

References GSM_BLOCK_SIZE, GSM_FRAME_SIZE, and AVCodecContext::priv_data.

static int libgsm_encode_frame	(	AVCodecContext *	avctx,
		unsigned char *	frame,
		int	buf_size,
		void *	data
	)			[static]

Definition at line 53 of file libgsm.c.

References GSM_BLOCK_SIZE, and AVCodecContext::priv_data.

static int libgsm_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 32 of file libgsm.c.

References avcodec_alloc_frame(), AVCodecContext::block_align, AVCodecContext::channels, AVCodecContext::coded_frame, AVCodecContext::frame_size, GSM_BLOCK_SIZE, GSM_FRAME_SIZE, AVCodecContext::priv_data, and AVCodecContext::sample_rate.

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Variable Documentation

AVCodec libgsm_decoder

Initial value:

 {
    "gsm",
    CODEC_TYPE_AUDIO,
    CODEC_ID_GSM,
    0,
    libgsm_init,
    NULL,
    libgsm_close,
    libgsm_decode_frame,
}

Definition at line 86 of file libgsm.c.

Referenced by avcodec_register_all().

AVCodec libgsm_encoder

Initial value:

 {
    "gsm",
    CODEC_TYPE_AUDIO,
    CODEC_ID_GSM,
    0,
    libgsm_init,
    libgsm_encode_frame,
    libgsm_close,
}

Definition at line 64 of file libgsm.c.

Referenced by avcodec_register_all().