usmdec.c File Reference

#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.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 FFInputFormat	ff_usm_demuxer

Macro Definition Documentation

VIDEOI

#define VIDEOI   0

Definition at line 31 of file usmdec.c.

Referenced by parse_chunk(), and parse_utf().

AUDIOI

#define AUDIOI   1

Definition at line 32 of file usmdec.c.

Referenced by parse_chunk(), and parse_utf().

ALPHAI

#define ALPHAI   2

Definition at line 33 of file usmdec.c.

Referenced by parse_chunk(), and parse_utf().

SUBTTI

#define SUBTTI   3

Definition at line 34 of file usmdec.c.

Referenced by parse_chunk().

Function Documentation

usm_probe()

static int usm_probe ( const AVProbeData * p )

static

Definition at line 56 of file usmdec.c.

usm_read_header()

static int usm_read_header ( AVFormatContext * s )

static

Definition at line 67 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 73 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 230 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 369 of file usmdec.c.

usm_read_close()

static int usm_read_close ( AVFormatContext * s )

static

Definition at line 411 of file usmdec.c.

Variable Documentation

ff_usm_demuxer

const FFInputFormat ff_usm_demuxer

Initial value:

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

Definition at line 419 of file usmdec.c.