codec2.c File Reference

#include "config_components.h"
#include "libavcodec/codec2utils.h"
#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "avio_internal.h"
#include "avformat.h"
#include "demux.h"
#include "internal.h"
#include "mux.h"
#include "rawenc.h"
#include "pcm.h"

Go to the source code of this file.

Data Structures
struct	Codec2Context

Macros
#define	CODEC2_HEADER_SIZE   7
#define	CODEC2_MAGIC   0xC0DEC2
#define	EXPECTED_CODEC2_MAJOR_VERSION   0
#define	EXPECTED_CODEC2_MINOR_VERSION   8
#define	FRAMES_PER_PACKET

Functions
static int	codec2_probe (const AVProbeData *p)
static int	codec2_mode_frame_size (AVFormatContext *s, int mode)
static int	codec2_mode_block_align (AVFormatContext *s, int mode)
static int	codec2_mode_bit_rate (AVFormatContext *s, int mode)
static int	codec2_read_header_common (AVFormatContext *s, AVStream *st)
static int	codec2_read_header (AVFormatContext *s)
static int	codec2_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	codec2_write_header (AVFormatContext *s)
static int	codec2raw_read_header (AVFormatContext *s)

Variables
static const AVOption	codec2_options []
static const AVOption	codec2raw_options []
static const AVClass	codec2_demux_class
static const AVClass	codec2raw_demux_class

Macro Definition Documentation

CODEC2_HEADER_SIZE

#define CODEC2_HEADER_SIZE   7

Definition at line 36 of file codec2.c.

Referenced by codec2_read_header().

CODEC2_MAGIC

#define CODEC2_MAGIC   0xC0DEC2

Definition at line 37 of file codec2.c.

Referenced by codec2_probe(), codec2_read_header(), and codec2_write_header().

EXPECTED_CODEC2_MAJOR_VERSION

#define EXPECTED_CODEC2_MAJOR_VERSION   0

Definition at line 41 of file codec2.c.

Referenced by codec2_probe(), and codec2_read_header().

EXPECTED_CODEC2_MINOR_VERSION

#define EXPECTED_CODEC2_MINOR_VERSION   8

Definition at line 42 of file codec2.c.

Referenced by codec2_probe().

FRAMES_PER_PACKET

#define FRAMES_PER_PACKET

Value:

    { "frames_per_packet", "Number of frames to read at a time. Higher = faster decoding, lower granularity", \
      offsetof(Codec2Context, frames_per_packet), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM}

Definition at line 261 of file codec2.c.

Function Documentation

codec2_probe()

static int codec2_probe ( const AVProbeData * p )

static

Definition at line 50 of file codec2.c.

codec2_mode_frame_size()

static int codec2_mode_frame_size ( AVFormatContext * s, int mode )

static

Definition at line 69 of file codec2.c.

Referenced by codec2_mode_bit_rate(), and codec2_read_header_common().

codec2_mode_block_align()

static int codec2_mode_block_align ( AVFormatContext * s, int mode )

static

Definition at line 92 of file codec2.c.

Referenced by codec2_mode_bit_rate(), and codec2_read_header_common().

codec2_mode_bit_rate()

static int codec2_mode_bit_rate ( AVFormatContext * s, int mode )

static

Definition at line 116 of file codec2.c.

Referenced by codec2_read_header_common().

codec2_read_header_common()

static int codec2_read_header_common ( AVFormatContext * s, AVStream * st )

static

Definition at line 128 of file codec2.c.

Referenced by codec2_read_header(), and codec2raw_read_header().

codec2_read_header()

static int codec2_read_header ( AVFormatContext * s )

static

Definition at line 152 of file codec2.c.

codec2_read_packet()

static int codec2_read_packet ( AVFormatContext * s, AVPacket * pkt )

static

Definition at line 187 of file codec2.c.

codec2_write_header()

static int codec2_write_header ( AVFormatContext * s )

static

Definition at line 217 of file codec2.c.

codec2raw_read_header()

static int codec2raw_read_header ( AVFormatContext * s )

static

Definition at line 233 of file codec2.c.

Variable Documentation

codec2_options

const AVOption codec2_options[]

static

Initial value:

= {
    FRAMES_PER_PACKET,
    { NULL },
}

Definition at line 265 of file codec2.c.

codec2raw_options

const AVOption codec2raw_options[]

static

Initial value:

= {
    CODEC2_AVOPTIONS("codec2 mode [mandatory]", Codec2Context, -1, -1, AV_OPT_FLAG_DECODING_PARAM),
    FRAMES_PER_PACKET,
    { NULL },
}

Definition at line 270 of file codec2.c.

codec2_demux_class

const AVClass codec2_demux_class

static

Initial value:

= {
    .class_name = "codec2 demuxer",
    .item_name  = av_default_item_name,
    .option     = codec2_options,
    .version    = LIBAVUTIL_VERSION_INT,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 276 of file codec2.c.

codec2raw_demux_class

const AVClass codec2raw_demux_class

static

Initial value:

= {
    .class_name = "codec2raw demuxer",
    .item_name  = av_default_item_name,
    .option     = codec2raw_options,
    .version    = LIBAVUTIL_VERSION_INT,
    .category   = AV_CLASS_CATEGORY_DEMUXER,
}

Definition at line 284 of file codec2.c.