mm.c File Reference

American Laser Games MM Format Demuxer by Peter Ross (pross.nosp@m.@xvi.nosp@m.d.org) More...

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

Go to the source code of this file.

Data Structures
struct	MmDemuxContext

Macros
#define	MM_PREAMBLE_SIZE   6
#define	MM_TYPE_HEADER   0x0
#define	MM_TYPE_INTER   0x5
#define	MM_TYPE_INTRA   0x8
#define	MM_TYPE_INTRA_HH   0xc
#define	MM_TYPE_INTER_HH   0xd
#define	MM_TYPE_INTRA_HHV   0xe
#define	MM_TYPE_INTER_HHV   0xf
#define	MM_TYPE_AUDIO   0x15
#define	MM_TYPE_PALETTE   0x31
#define	MM_HEADER_LEN_V   0x16 /* video only */
#define	MM_HEADER_LEN_AV   0x18 /* video + audio */
#define	MM_PALETTE_COUNT   128
#define	MM_PALETTE_SIZE   (MM_PALETTE_COUNT*3)

Functions
static int	probe (AVProbeData *p)
static int	read_header (AVFormatContext *s)
static int	read_packet (AVFormatContext *s, AVPacket *pkt)

Variables
AVInputFormat	ff_mm_demuxer

Detailed Description

American Laser Games MM Format Demuxer by Peter Ross (pross.nosp@m.@xvi.nosp@m.d.org)

The MM format was used by IBM-PC ports of ALG's "arcade shooter" games, including Mad Dog McCree and Crime Patrol.

Technical details here: http://wiki.multimedia.cx/index.php?title=American_Laser_Games_MM

Definition in file mm.c.

Macro Definition Documentation

MM_PREAMBLE_SIZE

#define MM_PREAMBLE_SIZE   6

Definition at line 39 of file mm.c.

Referenced by probe(), and read_packet().

MM_TYPE_HEADER

#define MM_TYPE_HEADER   0x0

Definition at line 41 of file mm.c.

Referenced by probe(), and read_header().

MM_TYPE_INTER

#define MM_TYPE_INTER   0x5

Definition at line 42 of file mm.c.

Referenced by read_packet().

MM_TYPE_INTRA

#define MM_TYPE_INTRA   0x8

Definition at line 43 of file mm.c.

Referenced by read_packet().

MM_TYPE_INTRA_HH

#define MM_TYPE_INTRA_HH   0xc

Definition at line 44 of file mm.c.

Referenced by read_packet().

MM_TYPE_INTER_HH

#define MM_TYPE_INTER_HH   0xd

Definition at line 45 of file mm.c.

Referenced by read_packet().

MM_TYPE_INTRA_HHV

#define MM_TYPE_INTRA_HHV   0xe

Definition at line 46 of file mm.c.

Referenced by read_packet().

MM_TYPE_INTER_HHV

#define MM_TYPE_INTER_HHV   0xf

Definition at line 47 of file mm.c.

Referenced by read_packet().

MM_TYPE_AUDIO

#define MM_TYPE_AUDIO   0x15

Definition at line 48 of file mm.c.

Referenced by read_packet().

MM_TYPE_PALETTE

#define MM_TYPE_PALETTE   0x31

Definition at line 49 of file mm.c.

Referenced by read_packet().

MM_HEADER_LEN_V

#define MM_HEADER_LEN_V   0x16 /* video only */

Definition at line 51 of file mm.c.

Referenced by probe().

MM_HEADER_LEN_AV

#define MM_HEADER_LEN_AV   0x18 /* video + audio */

Definition at line 52 of file mm.c.

Referenced by probe(), and read_header().

MM_PALETTE_COUNT

#define MM_PALETTE_COUNT   128

Definition at line 54 of file mm.c.

MM_PALETTE_SIZE

#define MM_PALETTE_SIZE   (MM_PALETTE_COUNT*3)

Definition at line 55 of file mm.c.

Function Documentation

probe()

static int probe ( AVProbeData *  p )

static

Definition at line 61 of file mm.c.

read_header()

static int read_header ( AVFormatContext *  s )

static

Definition at line 85 of file mm.c.

read_packet()

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

static

Definition at line 138 of file mm.c.

Variable Documentation

ff_mm_demuxer

AVInputFormat ff_mm_demuxer

Initial value:

= {
    .name           = "mm",
    .long_name      = NULL_IF_CONFIG_SMALL("American Laser Games MM"),
    .priv_data_size = sizeof(MmDemuxContext),
    .read_probe     = probe,
    .read_header    = read_header,
    .read_packet    = read_packet,
}

Definition at line 190 of file mm.c.