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Special Forums News, Links, Events and Announcements Software Releases - RSS News Video Contact Sheet *NIX 1.0.11 (Default branch)
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Old 04-09-2008
Video Contact Sheet *NIX 1.0.11 (Default branch)
Image Video Contact Sheet *NIX (vcs for short) is a script that creates a contact sheet (preview) from videos by taking still captures distributed over the length of the video. The output image contains useful information on the video such as codecs, file size, screen size, frame rate, and length. It requires mplayer, ImageMagick (convert and montage), bc, and ffmpeg. License: GNU Lesser General Public License (LGPL) Changes:
Deriving timecodes from number of captures by default has been corrected. There is a workaround for MPlayer's strange behaviour with some videos/systems, better support for older versions of bash, some suport for busybox's du, and better alignment for extended set. FOURCC for VC-1 has been added.Image

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LEARN ABOUT DEBIAN

swf::videostream

.::SWF::VideoStream(3pm)				User Contributed Perl Documentation				  .::SWF::VideoStream(3pm)

NAME

       SWF::VideoStream - SWF Video class

SYNOPSIS

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

DESCRIPTION

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

METHODS

       $videostream = new SWF::VideoStream($filename)
	   Creates a SWF::VideoStream object. If the file can't be opened the constructor will return an empty object. The filename is not limited
	   to 'flv' extension.

       $frames = $videostream->getNumFrames()
	   This method returns the number of video-frames of an object of SWF::VideoStream, this works only for embedded streams. In case of error
	   you will get result of -1.

       $videostream->setDimension(width, height)
	   This method sets width and height for streamed videos, this works only on streamed videos (progressive download or rtmp).

       $bool = $videostream->hasAudio()
	   A test whether the embedded FLV stream also has audio data.

       $videostream->setFrameMode($mode)
	   If the mode == SWFVIDEOSTREAM_MODE_AUTO (default) on every SWF movie frame a video frame is added. In SWFVIDEOSTREAM_MODE_MANUAL mode,
	   the user needs to call the nextFrame() method to change the video's frame. This works only with embedded video streams.  Does return
	   the previous mode or -1 if an invalid mode was passed.

       $result = $videostream->nextFrame()
	   Switch to next video frame. Works only with embedded video streams. Returns -1 if an error happend.	Here follows some demo code how to
	   use SWF::VideoStream objects (without ActionScript):

		   use SWF qw(:ALL);			   # to be lazy
		   $movie = new SWF::Movie();
		   $movie->setRate( 25 );
		   # $movie->setRate( 5 );		   # e.g. 5 for slow motion
		   # here movie set background etc. etc.
		   #
		   $video=new SWF::VideoStream('MyTestVideo.flv');
		   die if (-1 == $v->getNumFrames());	   # abort if something went wrong
		   #
		   $video->setFrameMode(SWF::Constants::SWFVIDEOSTREAM_MODE_MANUAL);
		   $video->seek(1000, 0);		   # for example only
		   $displayitem = $movie->add($video);
		   #
		   # 250 for a 10 seconds movie part (at rate of 25 per minute)
		   for(my $n = 0; $n < 250; ++$n)
		   {
		    $video->nextFrame();
		    $movie->nextFrame();
		   }
		   $movie->save("MyTestVideo.swf",9);
		   # that's all, folks

       $result = $videostream->seek($frame, $whence)
	   This functions allows seeking $frame in video stream, returning the old video frame position.  As value of $whence use one of the
	   following:

		   0 for seeking from beginning
		   1 for seeking from current position
		   2 for seeking from end of file

AUTHOR

	       developers of ming
	       ming.sourceforge.net

SEE ALSO

       SWF, SWF::Action, SWF::Movie, SWF::MovieClip, SWF::Sound, SWF::SoundStream, SWF::Constants

perl v5.14.2							    2011-10-26						  .::SWF::VideoStream(3pm)