usmdec.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "demux.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	USMChannel
struct	USMDemuxContext

Macros
#define	VIDEOI   0
#define	AUDIOI   1
#define	ALPHAI   2
#define	SUBTTI   3

Functions
static int	usm_probe (const AVProbeData *p)
static int	usm_read_header (AVFormatContext *s)
static int	parse_utf (AVFormatContext *s, AVIOContext *pb, USMChannel *ch, int ch_type, uint32_t parent_chunk_size)
static int64_t	parse_chunk (AVFormatContext *s, AVIOContext *pb, uint32_t chunk_type, uint32_t chunk_size, AVPacket *pkt)
static int	usm_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	usm_read_close (AVFormatContext *s)

Variables
const AVInputFormat	ff_usm_demuxer

Macro Definition Documentation

VIDEOI

#define VIDEOI   0

Definition at line 29 of file usmdec.c.

AUDIOI

#define AUDIOI   1

Definition at line 30 of file usmdec.c.

ALPHAI

#define ALPHAI   2

Definition at line 31 of file usmdec.c.

SUBTTI

#define SUBTTI   3

Definition at line 32 of file usmdec.c.

Function Documentation

usm_probe()

static int usm_probe ( const AVProbeData *  p )

static

Definition at line 54 of file usmdec.c.

usm_read_header()

static int usm_read_header ( AVFormatContext *  s )

static

Definition at line 65 of file usmdec.c.

parse_utf()

static int parse_utf ( AVFormatContext *  s, AVIOContext *  pb, USMChannel *  ch, int  ch_type, uint32_t  parent_chunk_size  )

static

Definition at line 71 of file usmdec.c.

Referenced by parse_chunk().

parse_chunk()

static int64_t parse_chunk ( AVFormatContext *  s, AVIOContext *  pb, uint32_t  chunk_type, uint32_t  chunk_size, AVPacket *  pkt  )

static

Definition at line 228 of file usmdec.c.

Referenced by usm_read_packet().

usm_read_packet()

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

static

Definition at line 367 of file usmdec.c.

usm_read_close()

static int usm_read_close ( AVFormatContext *  s )

static

Definition at line 409 of file usmdec.c.

Variable Documentation

ff_usm_demuxer

const AVInputFormat ff_usm_demuxer

Initial value:

= {
    .name           = "usm",
    .long_name      = NULL_IF_CONFIG_SMALL("CRI USM"),
    .priv_data_size = sizeof(USMDemuxContext),
    .read_probe     = usm_probe,
    .read_header    = usm_read_header,
    .read_packet    = usm_read_packet,
    .read_close     = usm_read_close,
    .extensions     = "usm",
    .flags          = AVFMT_GENERIC_INDEX | AVFMT_NO_BYTE_SEEK | AVFMT_NOBINSEARCH,
}

Definition at line 417 of file usmdec.c.