Re: GLUG: Video MPEG encoding

[Paul Rahme <pgr@xxxxxxxxx>]

Hi Theo

Off the bttv and broadcast2000 websites (I don't know the URL's, but you can
find them on freshmeat if you do a search) there's a .tgz package called
"mpegtools" or "mpeg_movie" which has all the tools you'll need to encode mpeg
1 or 2 video from video and audio streams. However I found the lack of useful
documentation a problem here and it seems you really need to know what you're
doing to get it to encode.

-Paul

On Mon, 03 Apr 2000, Theo van der Merwe wrote:
> I am still a newcomer to Linux. I am interested in using Linux for video
> encoding and have the following questions: 
> 
> 1) Where can I obtain a suitable MPEG (software) encoder for Linux? I am
> capturing in MJPEG format with a FAST video capture card in Windows 95 (no
> NT driver available) and would like to encode in MPEG. Currently I use
> avi2mpg1 on the Windows machine (slow, but it works). 
> 
> 2) Where can I obtain software codecs for Linux, e.g. for MJPEG or streaming
> video?
> 
> 3) Where can I obtain a suitable MPEG (or AVI) video editor? 
> I would like to use the editor to compile a training guide, with video
> clips. The following steps typically need to be performed:
> a) Compile a list of the in and out edit points (e.g. a EDL or edit decision
> list) for each video file. 
> b) Assign a filename to each in/out point in a). If no filename specified,
> use a default name. It may be necessary to change (i.e. edit) the filenames
> at a later stage.
> c) Encode the source file(s), using the EDL in 2a and perhaps some
> additional parameters, into the target format (e.g. MPEG). 
> 
> The editor basically needs to copy and paste the contents of the source
> file(s) to the target file(s) using the EDL (I don't require fancy
> processing at the moment). Although my source file format is MJPEG AVI, it
> would also be useful if MPEG files could be edited.
> 
> 4) Compile an index to the video files using the EDL. Perhaps a HTML
> document with hyperlinks to the video files? The index should be playable
> under Windows as well.
> 
> 5) The video editor should also allow one to view the contents of the target
> file using the EDL (bookmarks?). Ideally it should show the EDL and allow
> one to preview any clip. It should also be very easy to add a clip to the
> EDL (even in long video clips), using selection buttons for the in and out
> points.
> 
> 6) At some stage it might be necessary to edit the EDL. One would like to
> encode only the changes in the EDL. Given the new EDL, the program should
> therefore only encode the changes to the old EDL. How would this be done?
> 
> 
> Thanks in advance for your help.
> Best regards,
> Theo (ntvdm@xxxxxxxxxxx)
> 
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