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.

Data Structures
struct	LibGSMDecodeContext
Defines
#define	GSM_BLOCK_SIZE   33
#define	GSM_MS_BLOCK_SIZE   65
#define	GSM_FRAME_SIZE   160
Functions
static av_cold int	libgsm_encode_init (AVCodecContext *avctx)
static av_cold int	libgsm_encode_close (AVCodecContext *avctx)
static int	libgsm_encode_frame (AVCodecContext *avctx, unsigned char *frame, int buf_size, void *data)
static av_cold int	libgsm_decode_init (AVCodecContext *avctx)
static av_cold int	libgsm_decode_close (AVCodecContext *avctx)
static int	libgsm_decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)
static void	libgsm_flush (AVCodecContext *avctx)
Variables
AVCodec	ff_libgsm_encoder
AVCodec	ff_libgsm_ms_encoder
AVCodec	ff_libgsm_decoder
AVCodec	ff_libgsm_ms_decoder

---

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.

---

Function Documentation

static av_cold int libgsm_decode_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 170 of file libgsm.c.

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

Definition at line 178 of file libgsm.c.

static av_cold int libgsm_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 132 of file libgsm.c.

static av_cold int libgsm_encode_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 81 of file libgsm.c.

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

Definition at line 88 of file libgsm.c.

static av_cold int libgsm_encode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 38 of file libgsm.c.

static void libgsm_flush

(

AVCodecContext *

avctx

)

[static]

Definition at line 213 of file libgsm.c.

---

Variable Documentation

AVCodec ff_libgsm_decoder

Initial value:

 {
    .name           = "libgsm",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_GSM,
    .priv_data_size = sizeof(LibGSMDecodeContext),
    .init           = libgsm_decode_init,
    .close          = libgsm_decode_close,
    .decode         = libgsm_decode_frame,
    .flush          = libgsm_flush,
    .capabilities   = CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM"),
}

Definition at line 223 of file libgsm.c.

AVCodec ff_libgsm_encoder

Initial value:

 {
    .name           = "libgsm",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_GSM,
    .init           = libgsm_encode_init,
    .encode         = libgsm_encode_frame,
    .close          = libgsm_encode_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 105 of file libgsm.c.

AVCodec ff_libgsm_ms_decoder

Initial value:

 {
    .name           = "libgsm_ms",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_GSM_MS,
    .priv_data_size = sizeof(LibGSMDecodeContext),
    .init           = libgsm_decode_init,
    .close          = libgsm_decode_close,
    .decode         = libgsm_decode_frame,
    .flush          = libgsm_flush,
    .capabilities   = CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("libgsm GSM Microsoft variant"),
}

Definition at line 236 of file libgsm.c.

AVCodec ff_libgsm_ms_encoder

Initial value:

 {
    .name           = "libgsm_ms",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_GSM_MS,
    .init           = libgsm_encode_init,
    .encode         = libgsm_encode_frame,
    .close          = libgsm_encode_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 116 of file libgsm.c.