IFF file demuxer by Jaikrishnan Menon for more information on the .iff file format, visit: http://wiki.multimedia.cx/index.php?title=IFF. More...

#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "internal.h"

Data Structures
struct	IffDemuxContext

Macros
#define	ID_8SVX MKTAG('8','S','V','X')

#define	ID_16SV MKTAG('1','6','S','V')

#define	ID_MAUD MKTAG('M','A','U','D')

#define	ID_MHDR MKTAG('M','H','D','R')

#define	ID_MDAT MKTAG('M','D','A','T')

#define	ID_VHDR MKTAG('V','H','D','R')

#define	ID_ATAK MKTAG('A','T','A','K')

#define	ID_RLSE MKTAG('R','L','S','E')

#define	ID_CHAN MKTAG('C','H','A','N')

#define	ID_PBM MKTAG('P','B','M',' ')

#define	ID_ILBM MKTAG('I','L','B','M')

#define	ID_BMHD MKTAG('B','M','H','D')

#define	ID_DGBL MKTAG('D','G','B','L')

#define	ID_CAMG MKTAG('C','A','M','G')

#define	ID_CMAP MKTAG('C','M','A','P')

#define	ID_ACBM MKTAG('A','C','B','M')

#define	ID_DEEP MKTAG('D','E','E','P')

#define	ID_RGB8 MKTAG('R','G','B','8')

#define	ID_RGBN MKTAG('R','G','B','N')

#define	ID_FORM MKTAG('F','O','R','M')

#define	ID_ANNO MKTAG('A','N','N','O')

#define	ID_AUTH MKTAG('A','U','T','H')

#define	ID_CHRS MKTAG('C','H','R','S')

#define	ID_COPYRIGHT MKTAG('(','c',')',' ')

#define	ID_CSET MKTAG('C','S','E','T')

#define	ID_FVER MKTAG('F','V','E','R')

#define	ID_NAME MKTAG('N','A','M','E')

#define	ID_TEXT MKTAG('T','E','X','T')

#define	ID_ABIT MKTAG('A','B','I','T')

#define	ID_BODY MKTAG('B','O','D','Y')

#define	ID_DBOD MKTAG('D','B','O','D')

#define	ID_DPEL MKTAG('D','P','E','L')

#define	ID_DLOC MKTAG('D','L','O','C')

#define	ID_TVDC MKTAG('T','V','D','C')

#define	LEFT 2

#define	RIGHT 4

#define	STEREO 6

#define	IFF_EXTRA_VIDEO_SIZE 41
	This number of bytes if added at the beginning of each AVPacket which contain additional information about video properties which has to be shared between demuxer and decoder.

Enumerations
enum	svx8_compression_type { COMP_NONE, COMP_FIB, COMP_EXP }

Functions
static int	get_metadata (AVFormatContext s, const char const tag, const unsigned data_size)

static int	iff_probe (AVProbeData *p)

static int	iff_read_header (AVFormatContext *s)

static int	iff_read_packet (AVFormatContext s, AVPacket pkt)

Variables
static const uint8_t	deep_rgb24 [] = {0, 0, 0, 3, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8}

static const uint8_t	deep_rgba [] = {0, 0, 0, 4, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8}

static const uint8_t	deep_bgra [] = {0, 0, 0, 4, 0, 3, 0, 8, 0, 2, 0, 8, 0, 1, 0, 8}

static const uint8_t	deep_argb [] = {0, 0, 0, 4, 0,17, 0, 8, 0, 1, 0, 8, 0, 2, 0, 8}

static const uint8_t	deep_abgr [] = {0, 0, 0, 4, 0,17, 0, 8, 0, 3, 0, 8, 0, 2, 0, 8}

AVInputFormat	ff_iff_demuxer

Detailed Description

IFF file demuxer by Jaikrishnan Menon for more information on the .iff file format, visit: http://wiki.multimedia.cx/index.php?title=IFF.

Definition in file iff.c.

Macro Definition Documentation

#define ID_8SVX MKTAG('8','S','V','X')

Definition at line 39 of file iff.c.

Referenced by iff_probe().

#define ID_16SV MKTAG('1','6','S','V')

Definition at line 40 of file iff.c.

Referenced by iff_probe(), and iff_read_header().

#define ID_MAUD MKTAG('M','A','U','D')

Definition at line 41 of file iff.c.

Referenced by iff_probe(), iff_read_header(), and iff_read_packet().

#define ID_MHDR MKTAG('M','H','D','R')

Definition at line 42 of file iff.c.

Referenced by iff_read_header().

#define ID_MDAT MKTAG('M','D','A','T')

Definition at line 43 of file iff.c.

Referenced by iff_read_header().

#define ID_VHDR MKTAG('V','H','D','R')

Definition at line 44 of file iff.c.

Referenced by iff_read_header().

#define ID_ATAK MKTAG('A','T','A','K')

Definition at line 45 of file iff.c.

#define ID_RLSE MKTAG('R','L','S','E')

Definition at line 46 of file iff.c.

#define ID_CHAN MKTAG('C','H','A','N')

Definition at line 47 of file iff.c.

Referenced by iff_read_header().

#define ID_PBM MKTAG('P','B','M',' ')

Definition at line 48 of file iff.c.

Referenced by iff_probe().

#define ID_ILBM MKTAG('I','L','B','M')

Definition at line 49 of file iff.c.

Referenced by iff_probe().

#define ID_BMHD MKTAG('B','M','H','D')

Definition at line 50 of file iff.c.

Referenced by iff_read_header().

#define ID_DGBL MKTAG('D','G','B','L')

Definition at line 51 of file iff.c.

Referenced by iff_read_header().

#define ID_CAMG MKTAG('C','A','M','G')

Definition at line 52 of file iff.c.

Referenced by iff_read_header().

#define ID_CMAP MKTAG('C','M','A','P')

Definition at line 53 of file iff.c.

Referenced by iff_read_header().

#define ID_ACBM MKTAG('A','C','B','M')

Definition at line 54 of file iff.c.

Referenced by iff_probe().

#define ID_DEEP MKTAG('D','E','E','P')

Definition at line 55 of file iff.c.

Referenced by iff_probe().

#define ID_RGB8 MKTAG('R','G','B','8')

Definition at line 56 of file iff.c.

Referenced by iff_probe().

#define ID_RGBN MKTAG('R','G','B','N')

Definition at line 57 of file iff.c.

Referenced by iff_probe().

#define ID_FORM MKTAG('F','O','R','M')

Definition at line 59 of file iff.c.

Referenced by iff_probe().

#define ID_ANNO MKTAG('A','N','N','O')

Definition at line 60 of file iff.c.

Referenced by iff_read_header().

#define ID_AUTH MKTAG('A','U','T','H')

Definition at line 61 of file iff.c.

Referenced by iff_read_header().

#define ID_CHRS MKTAG('C','H','R','S')

Definition at line 62 of file iff.c.

#define ID_COPYRIGHT MKTAG('(','c',')',' ')

Definition at line 63 of file iff.c.

Referenced by iff_read_header().

#define ID_CSET MKTAG('C','S','E','T')

Definition at line 64 of file iff.c.

#define ID_FVER MKTAG('F','V','E','R')

Definition at line 65 of file iff.c.

#define ID_NAME MKTAG('N','A','M','E')

Definition at line 66 of file iff.c.

Referenced by iff_read_header().

#define ID_TEXT MKTAG('T','E','X','T')

Definition at line 67 of file iff.c.

Referenced by iff_read_header().

#define ID_ABIT MKTAG('A','B','I','T')

Definition at line 68 of file iff.c.

Referenced by iff_read_header().

#define ID_BODY MKTAG('B','O','D','Y')

Definition at line 69 of file iff.c.

Referenced by iff_read_header().

#define ID_DBOD MKTAG('D','B','O','D')

Definition at line 70 of file iff.c.

Referenced by iff_read_header().

#define ID_DPEL MKTAG('D','P','E','L')

Definition at line 71 of file iff.c.

Referenced by iff_read_header().

#define ID_DLOC MKTAG('D','L','O','C')

Definition at line 72 of file iff.c.

Referenced by iff_read_header().

#define ID_TVDC MKTAG('T','V','D','C')

Definition at line 73 of file iff.c.

Referenced by iff_read_header().

#define LEFT 2

Definition at line 75 of file iff.c.

#define RIGHT 4

Definition at line 76 of file iff.c.

#define STEREO 6

Definition at line 77 of file iff.c.

#define IFF_EXTRA_VIDEO_SIZE 41

This number of bytes if added at the beginning of each AVPacket which contain additional information about video properties which has to be shared between demuxer and decoder.

This number may change between frames, e.g. the demuxer might set it to smallest possible size of 2 to indicate that there's no extradata changing in this frame.

Definition at line 87 of file iff.c.

Referenced by iff_read_header().

Enumeration Type Documentation

enum svx8_compression_type

Enumerator:

COMP_NONE
COMP_FIB
COMP_EXP

Definition at line 89 of file iff.c.

Function Documentation

static int get_metadata	(	AVFormatContext *	s,
		const char *const	tag,
		const unsigned	data_size
	)

static

Definition at line 112 of file iff.c.

Referenced by iff_read_header().

static int iff_probe ( AVProbeData * p )

static

Definition at line 130 of file iff.c.

static int iff_read_header ( AVFormatContext * s )

static

Definition at line 154 of file iff.c.

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

static

Definition at line 437 of file iff.c.

Variable Documentation

const uint8_t deep_rgb24[] = {0, 0, 0, 3, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8}

static

Definition at line 148 of file iff.c.

Referenced by iff_read_header().

const uint8_t deep_rgba[] = {0, 0, 0, 4, 0, 1, 0, 8, 0, 2, 0, 8, 0, 3, 0, 8}

static

Definition at line 149 of file iff.c.

Referenced by iff_read_header().

const uint8_t deep_bgra[] = {0, 0, 0, 4, 0, 3, 0, 8, 0, 2, 0, 8, 0, 1, 0, 8}

static

Definition at line 150 of file iff.c.

Referenced by iff_read_header().

const uint8_t deep_argb[] = {0, 0, 0, 4, 0,17, 0, 8, 0, 1, 0, 8, 0, 2, 0, 8}

static

Definition at line 151 of file iff.c.

Referenced by iff_read_header().

const uint8_t deep_abgr[] = {0, 0, 0, 4, 0,17, 0, 8, 0, 3, 0, 8, 0, 2, 0, 8}

static

Definition at line 152 of file iff.c.

Referenced by iff_read_header().

AVInputFormat ff_iff_demuxer

Initial value:

= {
    .name           = "iff",
    .long_name      = NULL_IF_CONFIG_SMALL("IFF (Interchange File Format)"),
    .priv_data_size = sizeof(IffDemuxContext),
    .read_probe     = iff_probe,
    .read_header    = iff_read_header,
    .read_packet    = iff_read_packet,
    .flags          = AVFMT_GENERIC_INDEX | AVFMT_NO_BYTE_SEEK,
}

Definition at line 477 of file iff.c.

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation