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MPEG-2, MPEG-4, H.264 not working

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rejogc
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MPEG-2, MPEG-4, H.264 not working

Mon Sep 21, 2009 2:49 pm
Hi,

I cannot render in these formats: MPEG-2, MPEG-4, H.264

Here's my application particulars:
1 - kdenlive 0.7.5
2 - mlt 0.4.4-0ubuntu0~ppa4
3 - ffmpeg 3:0.svn20090303-1
4 - ubuntu 9.04

With MPEG-2 and MPEG-4 I can convert my input file using command line ffmpeg. I cannot do anything with H.264 with command line ffmpeg.

I am able to render using the other formats listed in the render screen with varying degrees of success. I am using vlc and mplayer to view my results and have noticed that many times they work with one and not the other.

Is there a suggested rendering format? This would be good because then I can use that format and use ffmpeg to convert to my desired format until you are able to fix the rendering issues.

By the way, excellent project! Keep up the good work.
ArtInvent
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build ffmpeg and x264

Mon Sep 21, 2009 11:05 pm
I'm not sure what's going on but there have been many reports of problems rendering to h264 over the last few months. It seems to be glitches in ffmpeg and/or x264, which are pretty much under constant development and getting better but still not quite perfected.

I'm on Ubuntu 9.04 64 with Kdenlive 0.7.5, and just built ffmpeg and x264 from source which is actually pretty easy and fasts following this howto in the forums. It's also nice in that it gives .deb packages that can be uninstalled or upgraded easily if later packages become available.

http://ubuntuforums.org/showthread.php?t=786095

I have rendered about 8 videos in 1080p30 to h264 since then. Most play great with a late version of mplayer and vdpau extensions for nvidia cards.

I still have one video that just won't render to h264 but it renders fine with mpeg4 or DNxHD. I've even tried importing a full render in DNxHD back into Kdenlive and rendering THAT into h264 but it also crashes at render which is pretty baffling. It is one of my longer videos at about 21 minutes, but on the other hand I have a 24 minute video that rendered fine. Strange.

rejogc
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Re: build ffmpeg and x264

Tue Sep 22, 2009 5:36 am
Thank you very much ArtInvent!! That worked perfectly.


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