libavformat/nuv.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavutil/intfloat.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)
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 & 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

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  )  [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 successful 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

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.


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