libavformat/nuv.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavutil/intfloat_readwrite.h"
#include "avformat.h"
#include "internal.h"
#include "riff.h"

Go to the source code of this file.

Data Structures
struct	NUVContext
Defines
#define	PKTSIZE(s)   (s & 0xffffff)
	little macro to sanitize packet size
#define	HDRSIZE   12
Enumerations
enum	nuv_frametype {   NUV_VIDEO = 'V', NUV_EXTRADATA = 'D', NUV_AUDIO = 'A', NUV_SEEKP = 'R',   NUV_MYTHEXT = 'X' }
Functions
static int	nuv_probe (AVProbeData *p)
static int	get_codec_data (AVIOContext *pb, AVStream *vst, AVStream *ast, int myth)
	read until we found all data needed for decoding
static int	nuv_header (AVFormatContext *s, AVFormatParameters *ap)
static int	nuv_packet (AVFormatContext *s, AVPacket *pkt)
static int	nuv_resync (AVFormatContext *s, int64_t pos_limit)
	looks for the string RTjjjjjjjjjj in the stream too resync reading
static int64_t	nuv_read_dts (AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
	attempts to read a timestamp from stream at the given stream position
Variables
AVInputFormat	ff_nuv_demuxer

---

Define Documentation

#define HDRSIZE   12

Definition at line 192 of file nuv.c.

Referenced by nuv_packet(), and nuv_read_dts().

#define PKTSIZE

(

s

)

(s & 0xffffff)

little macro to sanitize packet size

Definition at line 51 of file nuv.c.

Referenced by get_codec_data(), nuv_packet(), and nuv_read_dts().

---

Enumeration Type Documentation

enum nuv_frametype

Enumerator:

NUV_VIDEO
NUV_EXTRADATA
NUV_AUDIO
NUV_SEEKP
NUV_MYTHEXT

Definition at line 34 of file nuv.c.

---

Function Documentation

static int get_codec_data	(	AVIOContext *	pb,
		AVStream *	vst,
		AVStream *	ast,
		int	myth
	)			[static]

read until we found all data needed for decoding

Parameters:

	vst	video stream of which to change parameters
	ast	video stream of which to change parameters
	myth	set if this is a MythTVVideo format file

Returns:

1 if all required codec data was found

Definition at line 60 of file nuv.c.

Referenced by nuv_header().

static int nuv_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)			[static]

Definition at line 125 of file nuv.c.

static int nuv_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			[static]

Definition at line 194 of file nuv.c.

static int nuv_probe

(

AVProbeData *

p

)

[static]

Definition at line 42 of file nuv.c.

static int64_t nuv_read_dts	(	AVFormatContext *	s,
		int	stream_index,
		int64_t *	ppos,
		int64_t	pos_limit
	)			[static]

attempts to read a timestamp from stream at the given stream position

Returns:

timestamp if successfull and AV_NOPTS_VALUE if failure

Definition at line 282 of file nuv.c.

static int nuv_resync	(	AVFormatContext *	s,
		int64_t	pos_limit
	)			[static]

looks for the string RTjjjjjjjjjj in the stream too resync reading

Returns:

1 if the syncword is found 0 otherwise.

Definition at line 265 of file nuv.c.

Referenced by nuv_read_dts().

---

Variable Documentation

AVInputFormat ff_nuv_demuxer

Initial value:

 {
    .name           = "nuv",
    .long_name      = NULL_IF_CONFIG_SMALL("NuppelVideo format"),
    .priv_data_size = sizeof(NUVContext),
    .read_probe     = nuv_probe,
    .read_header    = nuv_header,
    .read_packet    = nuv_packet,
    .read_timestamp = nuv_read_dts,
    .flags = AVFMT_GENERIC_INDEX,
}

Definition at line 336 of file nuv.c.