libavformat/gsmdec.c File Reference

#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, AVFormatParameters *ap)
static int gsm_read_seek2 (AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)


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

Define Documentation

#define GSM_BLOCK_SAMPLES   160

Definition at line 28 of file gsmdec.c.

Referenced by gsm_read_header(), and gsm_read_seek2().

#define GSM_BLOCK_SIZE   33

Definition at line 27 of file gsmdec.c.

#define GSM_SAMPLE_RATE   8000

Definition at line 29 of file gsmdec.c.

Referenced by gsm_read_header().

Function Documentation

static int gsm_read_header ( AVFormatContext s,
AVFormatParameters ap 
) [static]

Definition at line 57 of file gsmdec.c.

static int gsm_read_packet ( AVFormatContext s,
AVPacket pkt 
) [static]

Definition at line 36 of file gsmdec.c.

static int gsm_read_seek2 ( AVFormatContext s,
int  stream_index,
int64_t  min_ts,
int64_t  ts,
int64_t  max_ts,
int  flags 
) [static]

Definition at line 76 of file gsmdec.c.

Variable Documentation

const { ... } [static]

class_name = "gsm demuxer"

Definition at line 117 of file gsmdec.c.

Initial value:

    .name           = "gsm",
    .long_name      = NULL_IF_CONFIG_SMALL("raw GSM"),
    .priv_data_size = sizeof(GSMDemuxerContext),
    .read_header    = gsm_read_header,
    .read_packet    = gsm_read_packet,
    .read_seek2     = gsm_read_seek2,
    .extensions     = "gsm",
    .value          = CODEC_ID_GSM,
    .priv_class     = &class,

Definition at line 123 of file gsmdec.c.

item_name = av_default_item_name

Definition at line 118 of file gsmdec.c.

Definition at line 119 of file gsmdec.c.

const AVOption options[] [static]

Initial value:

    { "sample_rate", "", 0x42,
    { NULL },

Definition at line 109 of file gsmdec.c.

Definition at line 120 of file gsmdec.c.

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