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gsmdec.c File Reference
#include "libavutil/channel_layout.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "avformat.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  GSMDemuxerContext


#define GSM_BLOCK_SIZE   33
#define GSM_BLOCK_SAMPLES   160
#define GSM_SAMPLE_RATE   8000


static int gsm_read_packet (AVFormatContext *s, AVPacket *pkt)
static int gsm_read_header (AVFormatContext *s)


static const AVOption options []
class {
      class_name = "gsm demuxer"
      item_name = av_default_item_name
      option = options
AVInputFormat ff_gsm_demuxer

Macro Definition Documentation

#define GSM_BLOCK_SIZE   33

Definition at line 28 of file gsmdec.c.

Referenced by gsm_read_header(), and gsm_read_packet().

#define GSM_BLOCK_SAMPLES   160

Definition at line 29 of file gsmdec.c.

Referenced by gsm_read_header().

#define GSM_SAMPLE_RATE   8000

Definition at line 30 of file gsmdec.c.

Referenced by gsm_read_header().

Function Documentation

static int gsm_read_packet ( AVFormatContext s,
AVPacket pkt 

Definition at line 37 of file gsmdec.c.

static int gsm_read_header ( AVFormatContext s)

Definition at line 57 of file gsmdec.c.

Variable Documentation

const AVOption options[]
Initial value:
= {
{ "sample_rate", "", 0x42,
{ NULL },

Definition at line 76 of file gsmdec.c.

class_name = "gsm demuxer"

Definition at line 84 of file gsmdec.c.

item_name = av_default_item_name

Definition at line 85 of file gsmdec.c.

option = options

Definition at line 86 of file gsmdec.c.

Definition at line 87 of file gsmdec.c.

const { ... }
AVInputFormat ff_gsm_demuxer
Initial value:
= {
.name = "gsm",
.long_name = NULL_IF_CONFIG_SMALL("raw GSM"),
.priv_data_size = sizeof(GSMDemuxerContext),
.extensions = "gsm",
.raw_codec_id = AV_CODEC_ID_GSM,
.priv_class = &class,

Definition at line 90 of file gsmdec.c.