libavformat/4xm.c File Reference

4X Technologies file demuxer by Mike Melanson (melanson@pcisys.net) for more information on the .4xm file format, visit: http://www.pcisys.net/~melanson/codecs/ More...

#include "libavutil/intreadwrite.h"
#include "avformat.h"

Go to the source code of this file.

Data Structures

struct AudioTrack

struct FourxmDemuxContext

Defines

#define RIFF_TAG   MKTAG('R', 'I', 'F', 'F')

#define FOURXMV_TAG   MKTAG('4', 'X', 'M', 'V')

#define LIST_TAG   MKTAG('L', 'I', 'S', 'T')

#define HEAD_TAG   MKTAG('H', 'E', 'A', 'D')

#define TRK__TAG   MKTAG('T', 'R', 'K', '_')

#define MOVI_TAG   MKTAG('M', 'O', 'V', 'I')

#define VTRK_TAG   MKTAG('V', 'T', 'R', 'K')

#define STRK_TAG   MKTAG('S', 'T', 'R', 'K')

#define std__TAG   MKTAG('s', 't', 'd', '_')

#define name_TAG   MKTAG('n', 'a', 'm', 'e')

#define vtrk_TAG   MKTAG('v', 't', 'r', 'k')

#define strk_TAG   MKTAG('s', 't', 'r', 'k')

#define ifrm_TAG   MKTAG('i', 'f', 'r', 'm')

#define pfrm_TAG   MKTAG('p', 'f', 'r', 'm')

#define cfrm_TAG   MKTAG('c', 'f', 'r', 'm')

#define ifr2_TAG   MKTAG('i', 'f', 'r', '2')

#define pfr2_TAG   MKTAG('p', 'f', 'r', '2')

#define cfr2_TAG   MKTAG('c', 'f', 'r', '2')

#define snd__TAG   MKTAG('s', 'n', 'd', '_')

#define vtrk_SIZE   0x44

#define strk_SIZE   0x28

#define GET_LIST_HEADER()

Functions

static int fourxm_probe (AVProbeData *p)

static int fourxm_read_header (AVFormatContext *s, AVFormatParameters *ap)

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

static int fourxm_read_close (AVFormatContext *s)

Variables

AVInputFormat ff_fourxm_demuxer

Detailed Description

4X Technologies file demuxer by Mike Melanson (melanson@pcisys.net) for more information on the .4xm file format, visit: http://www.pcisys.net/~melanson/codecs/

Definition in file 4xm.c.

Define Documentation

#define cfr2_TAG MKTAG('c', 'f', 'r', '2')

Definition at line 50 of file 4xm.c.

Referenced by fourxm_read_packet().

#define cfrm_TAG MKTAG('c', 'f', 'r', 'm')

Definition at line 47 of file 4xm.c.

Referenced by fourxm_read_packet().

#define FOURXMV_TAG MKTAG('4', 'X', 'M', 'V')

Definition at line 34 of file 4xm.c.

Referenced by fourxm_probe().

#define GET_LIST_HEADER ( )

Value:

fourcc_tag = avio_rl32(pb); \
    size = avio_rl32(pb); \
    if (fourcc_tag != LIST_TAG) \
        return AVERROR_INVALIDDATA; \
    fourcc_tag = avio_rl32(pb);

Definition at line 56 of file 4xm.c.

Referenced by fourxm_read_header().

#define HEAD_TAG MKTAG('H', 'E', 'A', 'D')

Definition at line 36 of file 4xm.c.

Referenced by fourxm_read_header().

#define ifr2_TAG MKTAG('i', 'f', 'r', '2')

Definition at line 48 of file 4xm.c.

Referenced by fourxm_read_packet().

#define ifrm_TAG MKTAG('i', 'f', 'r', 'm')

Definition at line 45 of file 4xm.c.

Referenced by fourxm_read_packet().

#define LIST_TAG MKTAG('L', 'I', 'S', 'T')

Definition at line 35 of file 4xm.c.

Referenced by fourxm_read_packet().

#define MOVI_TAG MKTAG('M', 'O', 'V', 'I')

Definition at line 38 of file 4xm.c.

Referenced by fourxm_read_header().

#define name_TAG MKTAG('n', 'a', 'm', 'e')

Definition at line 42 of file 4xm.c.

#define pfr2_TAG MKTAG('p', 'f', 'r', '2')

Definition at line 49 of file 4xm.c.

Referenced by fourxm_read_packet().

#define pfrm_TAG MKTAG('p', 'f', 'r', 'm')

Definition at line 46 of file 4xm.c.

Referenced by fourxm_read_packet().

#define RIFF_TAG MKTAG('R', 'I', 'F', 'F')

Definition at line 33 of file 4xm.c.

Referenced by fourxm_probe(), str_probe(), and str_read_header().

#define snd__TAG MKTAG('s', 'n', 'd', '_')

Definition at line 51 of file 4xm.c.

Referenced by fourxm_read_packet().

#define std__TAG MKTAG('s', 't', 'd', '_')

Definition at line 41 of file 4xm.c.

Referenced by fourxm_read_header().

#define strk_SIZE 0x28

Definition at line 54 of file 4xm.c.

Referenced by fourxm_read_header().

#define strk_TAG MKTAG('s', 't', 'r', 'k')

Definition at line 44 of file 4xm.c.

Referenced by fourxm_read_header().

#define STRK_TAG MKTAG('S', 'T', 'R', 'K')

Definition at line 40 of file 4xm.c.

#define TRK__TAG MKTAG('T', 'R', 'K', '_')

Definition at line 37 of file 4xm.c.

#define vtrk_SIZE 0x44

Definition at line 53 of file 4xm.c.

Referenced by fourxm_read_header().

#define vtrk_TAG MKTAG('v', 't', 'r', 'k')

Definition at line 43 of file 4xm.c.

Referenced by fourxm_read_header().

#define VTRK_TAG MKTAG('V', 'T', 'R', 'K')

Definition at line 39 of file 4xm.c.

Function Documentation

static int fourxm_probe ( AVProbeData * p ) [static]

Definition at line 83 of file 4xm.c.

static int fourxm_read_close ( AVFormatContext * s ) [static]

Definition at line 345 of file 4xm.c.

static int fourxm_read_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)			`[static]`

Definition at line 92 of file 4xm.c.

static int fourxm_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			`[static]`

Definition at line 251 of file 4xm.c.

Variable Documentation

AVInputFormat ff_fourxm_demuxer

Initial value:

 {
    "4xm",
    NULL_IF_CONFIG_SMALL("4X Technologies format"),
    sizeof(FourxmDemuxContext),
    fourxm_probe,
    fourxm_read_header,
    fourxm_read_packet,
    fourxm_read_close,
}

Definition at line 354 of file 4xm.c.


Data Structures
struct	AudioTrack
struct	FourxmDemuxContext
Defines
#define	RIFF_TAG MKTAG('R', 'I', 'F', 'F')
#define	FOURXMV_TAG MKTAG('4', 'X', 'M', 'V')
#define	LIST_TAG MKTAG('L', 'I', 'S', 'T')
#define	HEAD_TAG MKTAG('H', 'E', 'A', 'D')
#define	TRK__TAG MKTAG('T', 'R', 'K', '_')
#define	MOVI_TAG MKTAG('M', 'O', 'V', 'I')
#define	VTRK_TAG MKTAG('V', 'T', 'R', 'K')
#define	STRK_TAG MKTAG('S', 'T', 'R', 'K')
#define	std__TAG MKTAG('s', 't', 'd', '_')
#define	name_TAG MKTAG('n', 'a', 'm', 'e')
#define	vtrk_TAG MKTAG('v', 't', 'r', 'k')
#define	strk_TAG MKTAG('s', 't', 'r', 'k')
#define	ifrm_TAG MKTAG('i', 'f', 'r', 'm')
#define	pfrm_TAG MKTAG('p', 'f', 'r', 'm')
#define	cfrm_TAG MKTAG('c', 'f', 'r', 'm')
#define	ifr2_TAG MKTAG('i', 'f', 'r', '2')
#define	pfr2_TAG MKTAG('p', 'f', 'r', '2')
#define	cfr2_TAG MKTAG('c', 'f', 'r', '2')
#define	snd__TAG MKTAG('s', 'n', 'd', '_')
#define	vtrk_SIZE 0x44
#define	strk_SIZE 0x28
#define	GET_LIST_HEADER()
Functions
static int	fourxm_probe (AVProbeData *p)
static int	fourxm_read_header (AVFormatContext s, AVFormatParameters ap)
static int	fourxm_read_packet (AVFormatContext s, AVPacket pkt)
static int	fourxm_read_close (AVFormatContext *s)
Variables
AVInputFormat	ff_fourxm_demuxer