mlvdec.c File Reference

#include <time.h>
#include "libavcodec/bytestream.h"
#include "libavcodec/tiff.h"
#include "libavcodec/tiff_common.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavutil/rational.h"
#include "avformat.h"
#include "demux.h"
#include "internal.h"
#include "riff.h"

Go to the source code of this file.

Data Structures
struct	MlvContext

Macros
#define	MLV_VERSION   "v2.0"
#define	MLV_VIDEO_CLASS_RAW   1
#define	MLV_VIDEO_CLASS_YUV   2
#define	MLV_VIDEO_CLASS_JPEG   3
#define	MLV_VIDEO_CLASS_H264   4
#define	MLV_AUDIO_CLASS_WAV   1
#define	MLV_CLASS_FLAG_LJ92   0x20
#define	MLV_CLASS_FLAG_DELTA   0x40
#define	MLV_CLASS_FLAG_LZMA   0x80
#define	MAX_HEADER_SIZE   2048

Functions
static int	probe (const AVProbeData *p)
static int	check_file_header (AVIOContext *pb, uint64_t guid)
static void	read_string (AVFormatContext *avctx, AVIOContext *pb, const char *tag, unsigned size)
static void	read_uint8 (AVFormatContext *avctx, AVIOContext *pb, const char *tag, const char *fmt)
static void	read_uint16 (AVFormatContext *avctx, AVIOContext *pb, const char *tag, const char *fmt)
static void	read_uint32 (AVFormatContext *avctx, AVIOContext *pb, const char *tag, const char *fmt)
static void	read_uint64 (AVFormatContext *avctx, AVIOContext *pb, const char *tag, const char *fmt)
static int	scan_file (AVFormatContext *avctx, AVStream *vst, AVStream *ast, int file)
static int	read_header (AVFormatContext *avctx)
static void	write_tiff_short (PutByteContext *pb, int tag, int value)
static void	write_tiff_short2 (PutByteContext *pb, int tag, int v1, int v2)
static void	write_tiff_long (PutByteContext *pb, int tag, int value)
static void	write_tiff_byte4 (PutByteContext *pb, int tag, int v1, int v2, int v3, int v4)
static int	get_packet_lj92 (AVFormatContext *avctx, AVStream *st, AVIOContext *pbio, AVPacket *pkt, int64_t size)
static int	read_packet (AVFormatContext *avctx, AVPacket *pkt)
static int	read_seek (AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
static int	read_close (AVFormatContext *s)

Variables
const FFInputFormat	ff_mlv_demuxer

Detailed Description

Magic Lantern Video (MLV) demuxer

Definition in file mlvdec.c.

Macro Definition Documentation

MLV_VERSION

#define MLV_VERSION   "v2.0"

Definition at line 41 of file mlvdec.c.

MLV_VIDEO_CLASS_RAW

#define MLV_VIDEO_CLASS_RAW   1

Definition at line 43 of file mlvdec.c.

MLV_VIDEO_CLASS_YUV

#define MLV_VIDEO_CLASS_YUV   2

Definition at line 44 of file mlvdec.c.

MLV_VIDEO_CLASS_JPEG

#define MLV_VIDEO_CLASS_JPEG   3

Definition at line 45 of file mlvdec.c.

MLV_VIDEO_CLASS_H264

#define MLV_VIDEO_CLASS_H264   4

Definition at line 46 of file mlvdec.c.

MLV_AUDIO_CLASS_WAV

#define MLV_AUDIO_CLASS_WAV   1

Definition at line 48 of file mlvdec.c.

MLV_CLASS_FLAG_LJ92

#define MLV_CLASS_FLAG_LJ92   0x20

Definition at line 50 of file mlvdec.c.

MLV_CLASS_FLAG_DELTA

#define MLV_CLASS_FLAG_DELTA   0x40

Definition at line 51 of file mlvdec.c.

MLV_CLASS_FLAG_LZMA

#define MLV_CLASS_FLAG_LZMA   0x80

Definition at line 52 of file mlvdec.c.

MAX_HEADER_SIZE

#define MAX_HEADER_SIZE   2048

Function Documentation

probe()

static int probe ( const AVProbeData *  p )

static

Definition at line 64 of file mlvdec.c.

check_file_header()

static int check_file_header ( AVIOContext *  pb, uint64_t  guid  )

static

Definition at line 73 of file mlvdec.c.

Referenced by read_header().

read_string()

static void read_string ( AVFormatContext *  avctx, AVIOContext *  pb, const char *  tag, unsigned  size  )

static

Definition at line 89 of file mlvdec.c.

Referenced by scan_file().

read_uint8()

static void read_uint8 ( AVFormatContext *  avctx, AVIOContext *  pb, const char *  tag, const char *  fmt  )

static

Definition at line 109 of file mlvdec.c.

Referenced by scan_file().

read_uint16()

static void read_uint16 ( AVFormatContext *  avctx, AVIOContext *  pb, const char *  tag, const char *  fmt  )

static

Definition at line 114 of file mlvdec.c.

Referenced by scan_file().

read_uint32()

static void read_uint32 ( AVFormatContext *  avctx, AVIOContext *  pb, const char *  tag, const char *  fmt  )

static

Definition at line 119 of file mlvdec.c.

Referenced by scan_file().

read_uint64()

static void read_uint64 ( AVFormatContext *  avctx, AVIOContext *  pb, const char *  tag, const char *  fmt  )

static

Definition at line 124 of file mlvdec.c.

Referenced by scan_file().

scan_file()

static int scan_file ( AVFormatContext *  avctx, AVStream *  vst, AVStream *  ast, int  file  )

static

Definition at line 129 of file mlvdec.c.

Referenced by read_header().

read_header()

static int read_header ( AVFormatContext *  avctx )

static

Definition at line 283 of file mlvdec.c.

write_tiff_short()

static void write_tiff_short ( PutByteContext *  pb, int  tag, int  value  )

static

Definition at line 429 of file mlvdec.c.

Referenced by get_packet_lj92().

write_tiff_short2()

static void write_tiff_short2 ( PutByteContext *  pb, int  tag, int  v1, int  v2  )

static

Definition at line 438 of file mlvdec.c.

Referenced by get_packet_lj92().

write_tiff_long()

static void write_tiff_long ( PutByteContext *  pb, int  tag, int  value  )

static

Definition at line 447 of file mlvdec.c.

Referenced by get_packet_lj92().

write_tiff_byte4()

static void write_tiff_byte4 ( PutByteContext *  pb, int  tag, int  v1, int  v2, int  v3, int  v4  )

static

Definition at line 455 of file mlvdec.c.

Referenced by get_packet_lj92().

get_packet_lj92()

static int get_packet_lj92 ( AVFormatContext *  avctx, AVStream *  st, AVIOContext *  pbio, AVPacket *  pkt, int64_t  size  )

static

Definition at line 466 of file mlvdec.c.

Referenced by read_packet().

read_packet()

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

static

Definition at line 528 of file mlvdec.c.

read_seek()

static int read_seek ( AVFormatContext *  avctx, int  stream_index, int64_t  timestamp, int  flags  )

static

Definition at line 601 of file mlvdec.c.

read_close()

static int read_close ( AVFormatContext *  s )

static

Definition at line 615 of file mlvdec.c.

Variable Documentation

ff_mlv_demuxer

const FFInputFormat ff_mlv_demuxer

Initial value:

= {
    .p.name         = "mlv",
    .p.long_name    = NULL_IF_CONFIG_SMALL("Magic Lantern Video (MLV)"),
    .priv_data_size = sizeof(MlvContext),
    .flags_internal = FF_INFMT_FLAG_INIT_CLEANUP,
    .read_probe     = probe,
    .read_header    = read_header,
    .read_packet    = read_packet,
    .read_close     = read_close,
    .read_seek      = read_seek,
}

Definition at line 624 of file mlvdec.c.