#include "libavutil/attributes.h"
#include "libavutil/mathematics.h"
#include "avformat.h"
#include "internal.h"
#include "libavutil/dict.h"
#include "libavutil/intreadwrite.h"

Include dependency graph for nsvdec.c:

Go to the source code of this file.

Data Structures
struct	NSVStream

struct	NSVContext

Macros
#define	CHECK_SUBSEQUENT_NSVS

#define	NSV_MAX_RESYNC (500*1024)

#define	NSV_MAX_RESYNC_TRIES 300

#define	T_NSVF MKTAG('N', 'S', 'V', 'f') /* file header */

#define	T_NSVS MKTAG('N', 'S', 'V', 's') /* chunk header */

#define	T_TOC2 MKTAG('T', 'O', 'C', '2') /* extra index marker */

#define	T_NONE MKTAG('N', 'O', 'N', 'E') /* null a/v 4CC */

#define	T_SUBT MKTAG('S', 'U', 'B', 'T') /* subtitle aux data */

#define	T_ASYN MKTAG('A', 'S', 'Y', 'N') /* async a/v aux marker */

#define	T_KEYF MKTAG('K', 'E', 'Y', 'F') /* video keyframe aux marker (addition) */

#define	TB_NSVF MKBETAG('N', 'S', 'V', 'f')

#define	TB_NSVS MKBETAG('N', 'S', 'V', 's')

#define	NSV_ST_VIDEO 0

#define	NSV_ST_AUDIO 1

#define	NSV_ST_SUBT 2

#define	print_tag(str, tag, size)

Typedefs
typedef struct NSVStream	NSVStream

Enumerations
enum	NSVStatus { NSV_UNSYNC, NSV_FOUND_NSVF, NSV_HAS_READ_NSVF, NSV_FOUND_NSVS, NSV_HAS_READ_NSVS, NSV_FOUND_BEEF, NSV_GOT_VIDEO, NSV_GOT_AUDIO }

Functions
static int	nsv_read_chunk (AVFormatContext *s, int fill_header)

static int	nsv_resync (AVFormatContext *s)

static int	nsv_parse_NSVf_header (AVFormatContext *s)

static int	nsv_parse_NSVs_header (AVFormatContext *s)

static int	nsv_read_header (AVFormatContext *s)

static int	nsv_read_packet (AVFormatContext s, AVPacket pkt)

static int	nsv_read_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)

static int	nsv_read_close (AVFormatContext *s)

static int	nsv_probe (AVProbeData *p)

Variables
static const AVCodecTag	nsv_codec_video_tags []

static const AVCodecTag	nsv_codec_audio_tags []

AVInputFormat	ff_nsv_demuxer

Macro Definition Documentation

#define CHECK_SUBSEQUENT_NSVS

Definition at line 32 of file nsvdec.c.

#define NSV_MAX_RESYNC (500*1024)

Definition at line 38 of file nsvdec.c.

Referenced by nsv_resync().

#define NSV_MAX_RESYNC_TRIES 300

Definition at line 39 of file nsvdec.c.

Referenced by nsv_read_chunk(), and nsv_read_header().

#define NSV_ST_AUDIO 1

Definition at line 143 of file nsvdec.c.

Referenced by nsv_parse_NSVs_header(), and nsv_read_chunk().

#define NSV_ST_SUBT 2

Definition at line 144 of file nsvdec.c.

#define NSV_ST_VIDEO 0

Definition at line 142 of file nsvdec.c.

Referenced by nsv_parse_NSVs_header(), and nsv_read_chunk().

#define print_tag	(	str,
		tag,
		size
	)

Value:

av_dlog(NULL, "%s: tag=%c%c%c%c\n", \
            str, tag & 0xff,            \
            (tag >> 8) & 0xff,          \
            (tag >> 16) & 0xff,         \
            (tag >> 24) & 0xff);

Definition at line 219 of file nsvdec.c.

Referenced by nsv_parse_NSVs_header().

#define T_ASYN MKTAG('A', 'S', 'Y', 'N') /* async a/v aux marker */

Definition at line 135 of file nsvdec.c.

#define T_KEYF MKTAG('K', 'E', 'Y', 'F') /* video keyframe aux marker (addition) */

Definition at line 136 of file nsvdec.c.

#define T_NONE MKTAG('N', 'O', 'N', 'E') /* null a/v 4CC */

Definition at line 133 of file nsvdec.c.

Referenced by nsv_parse_NSVs_header().

#define T_NSVF MKTAG('N', 'S', 'V', 'f') /* file header */

Definition at line 130 of file nsvdec.c.

#define T_NSVS MKTAG('N', 'S', 'V', 's') /* chunk header */

Definition at line 131 of file nsvdec.c.

#define T_SUBT MKTAG('S', 'U', 'B', 'T') /* subtitle aux data */

Definition at line 134 of file nsvdec.c.

#define T_TOC2 MKTAG('T', 'O', 'C', '2') /* extra index marker */

Definition at line 132 of file nsvdec.c.

#define TB_NSVF MKBETAG('N', 'S', 'V', 'f')

Definition at line 138 of file nsvdec.c.

Referenced by nsv_resync().

#define TB_NSVS MKBETAG('N', 'S', 'V', 's')

Definition at line 139 of file nsvdec.c.

Typedef Documentation

typedef struct NSVStream NSVStream

Enumeration Type Documentation

enum NSVStatus

Enumerator
NSV_UNSYNC
NSV_FOUND_NSVF
NSV_HAS_READ_NSVF
NSV_FOUND_NSVS
NSV_HAS_READ_NSVS
NSV_FOUND_BEEF
NSV_GOT_VIDEO
NSV_GOT_AUDIO

Definition at line 146 of file nsvdec.c.

Function Documentation

static int nsv_parse_NSVf_header ( AVFormatContext * s )

static

Definition at line 272 of file nsvdec.c.

Referenced by nsv_read_header().

static int nsv_parse_NSVs_header ( AVFormatContext * s )

static

Definition at line 400 of file nsvdec.c.

Referenced by nsv_read_chunk(), and nsv_read_header().

static int nsv_probe ( AVProbeData * p )

static

Definition at line 762 of file nsvdec.c.

static int nsv_read_chunk	(	AVFormatContext *	s,
		int	fill_header
	)

static

Definition at line 557 of file nsvdec.c.

Referenced by nsv_read_header(), and nsv_read_packet().

static int nsv_read_close ( AVFormatContext * s )

static

Definition at line 734 of file nsvdec.c.

static int nsv_read_header ( AVFormatContext * s )

static

Definition at line 521 of file nsvdec.c.

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

static

Definition at line 687 of file nsvdec.c.

static int nsv_read_seek	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	timestamp,
		int	flags
	)

static

Definition at line 715 of file nsvdec.c.

static int nsv_resync ( AVFormatContext * s )

static

Definition at line 227 of file nsvdec.c.

Referenced by nsv_read_chunk(), and nsv_read_header().

Variable Documentation

AVInputFormat ff_nsv_demuxer

Initial value:

= {
    .name           = "nsv",
    .long_name      = NULL_IF_CONFIG_SMALL("Nullsoft Streaming Video"),
    .priv_data_size = sizeof(NSVContext),
    .read_probe     = nsv_probe,
    .read_header    = nsv_read_header,
    .read_packet    = nsv_read_packet,
    .read_close     = nsv_read_close,
    .read_seek      = nsv_read_seek,
}

Definition at line 794 of file nsvdec.c.

const AVCodecTag nsv_codec_audio_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_MP3,       MKTAG('M', 'P', '3', ' ') },
    { AV_CODEC_ID_AAC,       MKTAG('A', 'A', 'C', ' ') },
    { AV_CODEC_ID_AAC,       MKTAG('A', 'A', 'C', 'P') },
    { AV_CODEC_ID_AAC,       MKTAG('V', 'L', 'B', ' ') },
    { AV_CODEC_ID_SPEEX,     MKTAG('S', 'P', 'X', ' ') },
    { AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'C', 'M', ' ') },
    { AV_CODEC_ID_NONE,      0 },
}

Definition at line 206 of file nsvdec.c.

const AVCodecTag nsv_codec_video_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', ' ') },
    { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
    { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
    { AV_CODEC_ID_VP5, MKTAG('V', 'P', '5', ' ') },
    { AV_CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
    { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', ' ') },
    { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
    { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
    { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
    { AV_CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') },
    { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, 
    { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', '3') },
    { AV_CODEC_ID_NONE, 0 },
}

Definition at line 186 of file nsvdec.c.

Paris Hackday Code

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation