#include <inttypes.h>
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavutil/mem.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "demux.h"
#include "id3v2.h"
#include "internal.h"

Data Structures
struct	IffDemuxContext

struct	DSDLayoutDesc

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_DSD MKTAG('D','S','D',' ')

#define	ID_DST MKTAG('D','S','T',' ')

#define	ID_DSTC MKTAG('D','S','T','C')

#define	ID_DSTF MKTAG('D','S','T','F')

#define	ID_FRTE MKTAG('F','R','T','E')

#define	ID_ANIM MKTAG('A','N','I','M')

#define	ID_ANHD MKTAG('A','N','H','D')

#define	ID_DLTA MKTAG('D','L','T','A')

#define	ID_DPAN MKTAG('D','P','A','N')

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

#define	ID_FRM8 MKTAG('F','R','M','8')

#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. More...

#define	DSD_SLFT MKTAG('S','L','F','T')

#define	DSD_SRGT MKTAG('S','R','G','T')

#define	DSD_MLFT MKTAG('M','L','F','T')

#define	DSD_MRGT MKTAG('M','R','G','T')

#define	DSD_C MKTAG('C',' ',' ',' ')

#define	DSD_LS MKTAG('L','S',' ',' ')

#define	DSD_RS MKTAG('R','S',' ',' ')

#define	DSD_LFE MKTAG('L','F','E',' ')

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 (const AVProbeData *p)

static int	parse_dsd_diin (AVFormatContext s, AVStream st, uint64_t eof)

static int	parse_dsd_prop (AVFormatContext s, AVStream st, uint64_t eof)

static int	read_dst_frame (AVFormatContext s, AVPacket pkt)

static AVStream *	new_stream (AVFormatContext s, AVStream st_ptr, int index_ptr, enum AVMediaType codec_type)

static int	iff_read_header (AVFormatContext *s)

static unsigned	get_anim_duration (uint8_t *buf, int size)

static int64_t	get_sbdy_offset (uint8_t *buf, int size)

static int	iff_read_packet (AVFormatContext s, AVPacket pkt)

Variables
static const AVCodecTag	dsd_codec_tags []

static const uint32_t	dsd_stereo [] = { DSD_SLFT, DSD_SRGT }

static const uint32_t	dsd_5point0 [] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LS, DSD_RS }

static const uint32_t	dsd_5point1 [] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LFE, DSD_LS, DSD_RS }

static const DSDLayoutDesc	dsd_channel_layout []

static const AVChannelLayout	dsd_loudspeaker_config []

static const char *	dsd_source_comment []

static const char *	dsd_history_comment []

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}

const FFInputFormat	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

◆ ID_8SVX

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

Definition at line 44 of file iff.c.

◆ ID_16SV

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

Definition at line 45 of file iff.c.

◆ ID_MAUD

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

Definition at line 46 of file iff.c.

◆ ID_MHDR

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

Definition at line 47 of file iff.c.

◆ ID_MDAT

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

Definition at line 48 of file iff.c.

◆ ID_VHDR

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

Definition at line 49 of file iff.c.

◆ ID_ATAK

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

Definition at line 50 of file iff.c.

◆ ID_RLSE

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

Definition at line 51 of file iff.c.

◆ ID_CHAN

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

Definition at line 52 of file iff.c.

◆ ID_PBM

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

Definition at line 53 of file iff.c.

◆ ID_ILBM

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

Definition at line 54 of file iff.c.

◆ ID_BMHD

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

Definition at line 55 of file iff.c.

◆ ID_DGBL

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

Definition at line 56 of file iff.c.

◆ ID_CAMG

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

Definition at line 57 of file iff.c.

◆ ID_CMAP

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

Definition at line 58 of file iff.c.

◆ ID_ACBM

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

Definition at line 59 of file iff.c.

◆ ID_DEEP

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

Definition at line 60 of file iff.c.

◆ ID_RGB8

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

Definition at line 61 of file iff.c.

◆ ID_RGBN

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

Definition at line 62 of file iff.c.

◆ ID_DSD

#define ID_DSD MKTAG('D','S','D',' ')

Definition at line 63 of file iff.c.

◆ ID_DST

#define ID_DST MKTAG('D','S','T',' ')

Definition at line 64 of file iff.c.

◆ ID_DSTC

#define ID_DSTC MKTAG('D','S','T','C')

Definition at line 65 of file iff.c.

◆ ID_DSTF

#define ID_DSTF MKTAG('D','S','T','F')

Definition at line 66 of file iff.c.

◆ ID_FRTE

#define ID_FRTE MKTAG('F','R','T','E')

Definition at line 67 of file iff.c.

◆ ID_ANIM

#define ID_ANIM MKTAG('A','N','I','M')

Definition at line 68 of file iff.c.

◆ ID_ANHD

#define ID_ANHD MKTAG('A','N','H','D')

Definition at line 69 of file iff.c.

◆ ID_DLTA

#define ID_DLTA MKTAG('D','L','T','A')

Definition at line 70 of file iff.c.

◆ ID_DPAN

#define ID_DPAN MKTAG('D','P','A','N')

Definition at line 71 of file iff.c.

◆ ID_FORM

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

Definition at line 73 of file iff.c.

◆ ID_FRM8

#define ID_FRM8 MKTAG('F','R','M','8')

Definition at line 74 of file iff.c.

◆ ID_ANNO

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

Definition at line 75 of file iff.c.

◆ ID_AUTH

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

Definition at line 76 of file iff.c.

◆ ID_CHRS

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

Definition at line 77 of file iff.c.

◆ ID_COPYRIGHT

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

Definition at line 78 of file iff.c.

◆ ID_CSET

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

Definition at line 79 of file iff.c.

◆ ID_FVER

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

Definition at line 80 of file iff.c.

◆ ID_NAME

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

Definition at line 81 of file iff.c.

◆ ID_TEXT

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

Definition at line 82 of file iff.c.

◆ ID_ABIT

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

Definition at line 83 of file iff.c.

◆ ID_BODY

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

Definition at line 84 of file iff.c.

◆ ID_DBOD

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

Definition at line 85 of file iff.c.

◆ ID_DPEL

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

Definition at line 86 of file iff.c.

◆ ID_DLOC

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

Definition at line 87 of file iff.c.

◆ ID_TVDC

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

Definition at line 88 of file iff.c.

◆ LEFT

#define LEFT 2

Definition at line 90 of file iff.c.

◆ RIGHT

#define RIGHT 4

Definition at line 91 of file iff.c.

◆ STEREO

#define STEREO 6

Definition at line 92 of file iff.c.

◆ IFF_EXTRA_VIDEO_SIZE

#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 102 of file iff.c.

◆ DSD_SLFT

#define DSD_SLFT MKTAG('S','L','F','T')

Definition at line 178 of file iff.c.

◆ DSD_SRGT

#define DSD_SRGT MKTAG('S','R','G','T')

Definition at line 179 of file iff.c.

◆ DSD_MLFT

#define DSD_MLFT MKTAG('M','L','F','T')

Definition at line 180 of file iff.c.

◆ DSD_MRGT

#define DSD_MRGT MKTAG('M','R','G','T')

Definition at line 181 of file iff.c.

◆ DSD_C

#define DSD_C MKTAG('C',' ',' ',' ')

Definition at line 182 of file iff.c.

◆ DSD_LS

#define DSD_LS MKTAG('L','S',' ',' ')

Definition at line 183 of file iff.c.

◆ DSD_RS

#define DSD_RS MKTAG('R','S',' ',' ')

Definition at line 184 of file iff.c.

◆ DSD_LFE

#define DSD_LFE MKTAG('L','F','E',' ')

Definition at line 185 of file iff.c.

Enumeration Type Documentation

◆ svx8_compression_type

enum svx8_compression_type

Enumerator
COMP_NONE
COMP_FIB
COMP_EXP

Definition at line 104 of file iff.c.

Function Documentation

◆ get_metadata()

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

static

Definition at line 133 of file iff.c.

Referenced by iff_read_header(), and parse_dsd_diin().

◆ iff_probe()

static int iff_probe ( const AVProbeData * p )

static

Definition at line 151 of file iff.c.

◆ parse_dsd_diin()

static int parse_dsd_diin	(	AVFormatContext *	s,
		AVStream *	st,
		uint64_t	eof
	)

static

Definition at line 222 of file iff.c.

Referenced by iff_read_header().

◆ parse_dsd_prop()

static int parse_dsd_prop	(	AVFormatContext *	s,
		AVStream *	st,
		uint64_t	eof
	)

static

Definition at line 255 of file iff.c.

Referenced by iff_read_header().

◆ read_dst_frame()

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

static

Definition at line 359 of file iff.c.

Referenced by iff_read_header(), and iff_read_packet().

◆ new_stream()

static AVStream* new_stream	(	AVFormatContext *	s,
		AVStream **	st_ptr,
		int *	index_ptr,
		enum AVMediaType	codec_type
	)

static

Definition at line 426 of file iff.c.

Referenced by iff_read_header().

◆ iff_read_header()

static int iff_read_header ( AVFormatContext * s )

static

Definition at line 438 of file iff.c.

◆ get_anim_duration()

static unsigned get_anim_duration	(	uint8_t *	buf,
		int	size
	)

static

Definition at line 885 of file iff.c.

Referenced by iff_read_packet().

◆ get_sbdy_offset()

static int64_t get_sbdy_offset	(	uint8_t *	buf,
		int	size
	)

static

Definition at line 907 of file iff.c.

Referenced by iff_read_packet().

◆ iff_read_packet()

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

static

Definition at line 926 of file iff.c.

Variable Documentation

◆ dsd_codec_tags

const AVCodecTag dsd_codec_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_DSD_MSBF, ID_DSD },
    { AV_CODEC_ID_DST,      ID_DST },
    { AV_CODEC_ID_NONE, 0 },
}

Definition at line 171 of file iff.c.

Referenced by parse_dsd_prop().

◆ dsd_stereo

const uint32_t dsd_stereo[] = { DSD_SLFT, DSD_SRGT }

static

Definition at line 187 of file iff.c.

◆ dsd_5point0

const uint32_t dsd_5point0[] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LS, DSD_RS }

static

Definition at line 188 of file iff.c.

◆ dsd_5point1

const uint32_t dsd_5point1[] = { DSD_MLFT, DSD_MRGT, DSD_C, DSD_LFE, DSD_LS, DSD_RS }

static

Definition at line 189 of file iff.c.

◆ dsd_channel_layout

const DSDLayoutDesc dsd_channel_layout[]

static

Initial value:

= {
    { AV_CHANNEL_LAYOUT_STEREO,  dsd_stereo },
    { AV_CHANNEL_LAYOUT_5POINT0, dsd_5point0 },
    { AV_CHANNEL_LAYOUT_5POINT1, dsd_5point1 },
}

Definition at line 196 of file iff.c.

Referenced by parse_dsd_prop().

◆ dsd_loudspeaker_config

const AVChannelLayout dsd_loudspeaker_config[]

static

Initial value:

= {
    AV_CHANNEL_LAYOUT_STEREO,
    { 0 }, { 0 },
    AV_CHANNEL_LAYOUT_5POINT0, AV_CHANNEL_LAYOUT_5POINT1,
}

Definition at line 202 of file iff.c.

Referenced by parse_dsd_prop().

◆ dsd_source_comment

const char* dsd_source_comment[]

static

Initial value:

= {
    "dsd_source_comment",
    "analogue_source_comment",
    "pcm_source_comment",
}

Definition at line 208 of file iff.c.

Referenced by iff_read_header().

◆ dsd_history_comment

const char* dsd_history_comment[]

static

Initial value:

= {
    "general_remark",
    "operator_name",
    "creating_machine",
    "timezone",
    "file_revision"
}

Definition at line 214 of file iff.c.

Referenced by iff_read_header().

◆ deep_rgb24

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 420 of file iff.c.

Referenced by iff_read_header().

◆ deep_rgba

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 421 of file iff.c.

Referenced by iff_read_header().

◆ deep_bgra

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 422 of file iff.c.

Referenced by iff_read_header().

◆ deep_argb

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 423 of file iff.c.

Referenced by iff_read_header().

◆ deep_abgr

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 424 of file iff.c.

Referenced by iff_read_header().

◆ ff_iff_demuxer

const FFInputFormat ff_iff_demuxer

Initial value:

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

Definition at line 1018 of file iff.c.

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ ID_8SVX

◆ ID_16SV

◆ ID_MAUD

◆ ID_MHDR

◆ ID_MDAT

◆ ID_VHDR

◆ ID_ATAK

◆ ID_RLSE

◆ ID_CHAN

◆ ID_PBM

◆ ID_ILBM

◆ ID_BMHD

◆ ID_DGBL

◆ ID_CAMG

◆ ID_CMAP

◆ ID_ACBM

◆ ID_DEEP

◆ ID_RGB8

◆ ID_RGBN

◆ ID_DSD

◆ ID_DST

◆ ID_DSTC

◆ ID_DSTF

◆ ID_FRTE

◆ ID_ANIM

◆ ID_ANHD

◆ ID_DLTA

◆ ID_DPAN

◆ ID_FORM

◆ ID_FRM8

◆ ID_ANNO

◆ ID_AUTH

◆ ID_CHRS

◆ ID_COPYRIGHT

◆ ID_CSET

◆ ID_FVER

◆ ID_NAME

◆ ID_TEXT

◆ ID_ABIT

◆ ID_BODY

◆ ID_DBOD

◆ ID_DPEL

◆ ID_DLOC

◆ ID_TVDC

◆ LEFT

◆ RIGHT

◆ STEREO

◆ IFF_EXTRA_VIDEO_SIZE

◆ DSD_SLFT

◆ DSD_SRGT

◆ DSD_MLFT

◆ DSD_MRGT

◆ DSD_C

◆ DSD_LS

◆ DSD_RS

◆ DSD_LFE

Enumeration Type Documentation

◆ svx8_compression_type

Function Documentation

◆ get_metadata()

◆ iff_probe()

◆ parse_dsd_diin()

◆ parse_dsd_prop()

◆ read_dst_frame()

◆ new_stream()

◆ iff_read_header()

◆ get_anim_duration()

◆ get_sbdy_offset()

◆ iff_read_packet()

Variable Documentation

◆ dsd_codec_tags

◆ dsd_stereo

◆ dsd_5point0