SWF::VideoStream(3pm)

1.::SWF::VideoStream(3)User Contributed Perl Documentation.::SWF::VideoStream(3)
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NAME

6       SWF::VideoStream - SWF Video class
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SYNOPSIS

9               use SWF::VideoStream;
10               $videostream = new SWF::VideoStream("test.flv");
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DESCRIPTION

13       SWF::VideoStream is a helper class useful for playing videos via SWF
14       applications, either via embedded video data, or controlled by
15       ActionScript.
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METHODS

18       $videostream = new SWF::VideoStream($filename)
19           Creates a SWF::VideoStream object. If the file can't be opened the
20           constructor will return an empty object. The filename is not
21           limited to 'flv' extension.
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23       $frames = $videostream->getNumFrames()
24           This method returns the number of video-frames of an object of
25           SWF::VideoStream, this works only for embedded streams. In case of
26           error you will get result of -1.
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28       $videostream->setDimension(width, height)
29           This method sets width and height for streamed videos, this works
30           only on streamed videos (progressive download or rtmp).
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32       $bool = $videostream->hasAudio()
33           A test whether the embedded FLV stream also has audio data.
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35       $videostream->setFrameMode($mode)
36           If the mode == SWFVIDEOSTREAM_MODE_AUTO (default) on every SWF
37           movie frame a video frame is added. In SWFVIDEOSTREAM_MODE_MANUAL
38           mode, the user needs to call the nextFrame() method to change the
39           video's frame. This works only with embedded video streams.  Does
40           return the previous mode or -1 if an invalid mode was passed.
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42       $result = $videostream->nextFrame()
43           Switch to next video frame. Works only with embedded video streams.
44           Returns -1 if an error happend.  Here follows some demo code how to
45           use SWF::VideoStream objects (without ActionScript):
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47                   use SWF qw(:ALL);                       # to be lazy
48                   $movie = new SWF::Movie();
49                   $movie->setRate( 25 );
50                   # $movie->setRate( 5 );                 # e.g. 5 for slow motion
51                   # here movie set background etc. etc.
52                   #
53                   $video=new SWF::VideoStream('MyTestVideo.flv');
54                   die if (-1 == $v->getNumFrames());      # abort if something went wrong
55                   #
56                   $video->setFrameMode(SWF::Constants::SWFVIDEOSTREAM_MODE_MANUAL);
57                   $video->seek(1000, 0);                  # for example only
58                   $displayitem = $movie->add($video);
59                   #
60                   # 250 for a 10 seconds movie part (at rate of 25 per minute)
61                   for(my $n = 0; $n < 250; ++$n)
62                   {
63                    $video->nextFrame();
64                    $movie->nextFrame();
65                   }
66                   $movie->save("MyTestVideo.swf",9);
67                   # that's all, folks
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69       $result = $videostream->seek($frame, $whence)
70           This functions allows seeking $frame in video stream, returning the
71           old video frame position.  As value of $whence use one of the
72           following:
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74                   0 for seeking from beginning
75                   1 for seeking from current position
76                   2 for seeking from end of file
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AUTHOR

79               developers of ming
80               ming.sourceforge.net
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NAME

SYNOPSIS

DESCRIPTION

METHODS

AUTHOR

SEE ALSO