Chris Dolan > FLV-Info-0.24 > swf2flv

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NAME ^

swf2flv - Transform a video SWF into an FLV

SYNOPSIS ^

swf2flv [options] file.swf file.flv

 Options:
   -s --skipframes=n   How many blank frames are expected at the beginning of the video
                       Defaults to 1, which is appropriate for On2 Flix output.
   -v --verbose        Print diagnostic messages
   -h --help           Verbose help message
   -V --version        Print version

DESCRIPTION ^

With respect to video and audio content, FLV and SWF files have very similar data inside, and differ primarily in metadata. Very roughly, one can think of an FLV file as a subset of a SWF file.

Therefore, one can easily transcode from SWF to FLV and back without much work apart from fiddling with headers and the like.

CAVEATS AND LIMITATIONS ^

WARNING: This does not work on any old SWF! It has to be a video/audio-dominated SWF. Don't be surprised if it fails to extract content from some arbitrary SWF you built or download. In particular, it does not handle vector animation.

Supports Flash MX and Flash 8 video (that is, Sorenson H.263 and On2 VP6.2 respectively). Flash screen video and VP6 with alpha are both untested but might work.

Supports MP3 audio. Other audio formats are untested but might work.

Does not support multiple video or audio streams in the same file.

Emits Greenwich time in the creationdate meta tag, not local time.

SEE ALSO ^

FLV::FromSWF

FLV::ToSWF

flv2swf

AUTHOR ^

Clotho Advanced Media Inc., cpan@clotho.com

Primary Developer: Chris Dolan

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