libavcodec/libgsm.c File Reference

Interface to libgsm for gsm encoding/decoding. More...

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

Go to the source code of this file.

Defines
#define	GSM_BLOCK_SIZE   33
#define	GSM_MS_BLOCK_SIZE   65
#define	GSM_FRAME_SIZE   160
Functions
static av_cold int	libgsm_init (AVCodecContext *avctx)
static av_cold 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, AVPacket *avpkt)
Variables
AVCodec	ff_libgsm_encoder
AVCodec	ff_libgsm_ms_encoder
AVCodec	ff_libgsm_decoder
AVCodec	ff_libgsm_ms_decoder

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Detailed Description

Interface to libgsm for gsm encoding/decoding.

Definition in file libgsm.c.

---

Define Documentation

#define GSM_BLOCK_SIZE   33

Definition at line 34 of file libgsm.c.

#define GSM_FRAME_SIZE   160

Definition at line 36 of file libgsm.c.

#define GSM_MS_BLOCK_SIZE   65

Definition at line 35 of file libgsm.c.

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Function Documentation

static av_cold int libgsm_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 91 of file libgsm.c.

static int libgsm_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 139 of file libgsm.c.

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

Definition at line 98 of file libgsm.c.

static av_cold int libgsm_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 38 of file libgsm.c.

---

Variable Documentation

AVCodec ff_libgsm_decoder

Initial value:

 {
    "libgsm",
    AVMEDIA_TYPE_AUDIO,
    CODEC_ID_GSM,
    0,
    libgsm_init,
    NULL,
    libgsm_close,
    libgsm_decode_frame,
    .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM"),
}

Definition at line 166 of file libgsm.c.

AVCodec ff_libgsm_encoder

Initial value:

 {
    "libgsm",
    AVMEDIA_TYPE_AUDIO,
    CODEC_ID_GSM,
    0,
    libgsm_init,
    libgsm_encode_frame,
    libgsm_close,
    .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE},
    .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM"),
}

Definition at line 115 of file libgsm.c.

AVCodec ff_libgsm_ms_decoder

Initial value:

 {
    "libgsm_ms",
    AVMEDIA_TYPE_AUDIO,
    CODEC_ID_GSM_MS,
    0,
    libgsm_init,
    NULL,
    libgsm_close,
    libgsm_decode_frame,
    .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM Microsoft variant"),
}

Definition at line 178 of file libgsm.c.

AVCodec ff_libgsm_ms_encoder

Initial value:

 {
    "libgsm_ms",
    AVMEDIA_TYPE_AUDIO,
    CODEC_ID_GSM_MS,
    0,
    libgsm_init,
    libgsm_encode_frame,
    libgsm_close,
    .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE},
    .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM Microsoft variant"),
}

Definition at line 127 of file libgsm.c.