[mythtv-users] Video Editing HELP! (COMPLETE noobie)

belcampo belcampo at zonnet.nl
Tue Jun 2 08:36:17 UTC 2009

Douglas Wagner wrote:
> Where to begin.  I'm not sure if this is on topic, off topic or what so 
> please bear with me and my apologies in advance if this is all wrong.
> First, I'm using MythTV with a pchd3000 card (the linux video capture 
> card) capturing NTSC OTA transmission (High Def) through Myth.
> I have, what would at first, seem to be a simple issue.  I have a set of 
> videos that I would like to remove the commercials from.  Yes, I know 
> "Myth will do this for you."
> I've tried, I've failed...oh how I've failed.  Basically, I can go into 
> Myth's editor, I can mark the commercials and I can do the transcode and 
> at that point what I normally end up with is a video that has lost ALL 
> ability to be fast forwarded
First this has to be solved, otherwise all that follows will fail
mythtranscode --mpeg2 --buildindex --allkeys --showprogress -c $1 -s $2
In the wiki is suggested to use -f filename,
but that didn't work for me, the -c -s does.
>  and many times the commercial cut process 
> isn't what I'd like.
   I have several videos that have gone through this
> process that are now in myth video (having been removed from myth tv / 
> recordings) and thus are no longer in the database.  Worse yet, I have 
> several videos that I never realized I could cut commercials from so all 
> the commercials are still there...and I've lost the ability to fast 
> forward so if I want to watch the movie or show I have to WATCH the 
> commercials.  (Fast Forarding send the "position" counter to the end of 
> the video and it either restarts me from the beginning or sends me to 
> the end.)
> So what I'm stuck with at the moment are videos in various stages of 
> "broken" some with commercials, some without, most without the ability 
> to fast forward or rewind, and all of them with no myth-tv database 
> functionality so no ability to pull it through a transcoder and wipe out 
> commercials.
> The myth tv editing thing is something I"ll want to fix eventually but 
> for right now I'm looking for a BASIC tool that I can load a mythtv 
> recorded video into, simply remove the commercials and put it back out 
> in a format that doesn't destroy the sound or otherwise break the 
> video...the ability to fast forward and rewind would be a definate plus 
> but at this point I'll take a video I can't touch that has no 
> commercials in it.
> This would, on the surface, seem simple enough but I cannot seem to get 
> this to work and I have NO idea where to start.  My most recent fiasco 
> has been using a program called cinelerra.  Loaded the video into it 
> (that worked) it took an hour+ to read in and index (ok, fine) and then 
> I went through the cut process of deleting the commercials.  I managed 
> that. 
> Upon export I had to go to AVI (MPEG4 I think) and after 15 hours of 
> transcoding/recoding, whatever the heck it did, I get my video back.
> Yes, commercials are gone...so now is sound, it just pops and clicks.  
> Oh, yea, and now i've got a nice like 640x480 (maybe more) box in the 
> middle of my 1080i TV screen with the picture.
> Everywhere I look I see words like "keyframe" and about 20K other 
> technical terms that I have NO CLUE about. 
> This wouldn't seem hard to load the video into an editor, click and drag 
> to highlight the commerical part, press delete and export the 
> video...but every time I try something it seems to blow up the video.
> HELP, I mean really HELP.  Is there some basic guide out there?  What 
> about software?  What the heck is available...everything I try either 
> doesn't read Myth's format or requires a doctorate degree in video 
> production and at least 10 years experience working for a major 
> recording company to use.  I have windows, macs and linux in my house, 
> I'm happy to use any program on any of them.
> I don't need effects, I don't need to overlay a music track across 10 
> video clips and cut and paste my own movie.  I'm not producing for 
> YouTube or the 6'oclock news...I want a basic piece of software that I 
> can say "remove this section of the video" and have it just work.
> HELP, please. 
> Extremely Frustrated,
> --Doug
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