New answers tagged video-conversion
The -loop option applies to the next input file, so it's probably not parsed in your case. Try this – I left out the other options for the sake of brevity: ffmpeg -loop 1 -i input.jpg -t 5 output.mp4 A few tips: Your ffmpeg version is already a little outdated. Always try to use a recent build if something fails. -f image2 is superfluous since JPG ...
And the answer is: mp4 containers do not support theora video (thank you slhck) with a recent nightly build it just works For the future: Always try the nightly build, if it doesn’t work.
Important note: ffmpeg is not avconv – there's a difference between those. Many simple commands will just work fine in either tool, but you should always download a recent ffmpeg version instead of doing an apt-get install ffmpeg, because you won't get the "real" ffmpeg. Your command is quite off. Have you had a look at any examples or the documentation? ...
You haven't said what player you are using. In all probability it is your player that is unable to display the correct aspect ratio. 1024x576 is not required. An Aspect ratio flag is required. If however that flag is missing, (I'm guessing it is not missing) in ffmpeg it can be set using -aspect 16:9. In Handbrake use a -p at the end of the command: ...
Aunsoft Video Converter worths a try. It can convert MKV to DivX AVI with only 3 steps. The program also supports: TS TiVo, TiVo, VRO, MXF, AVI, MPG, MPEG, WMV, MP4, FLV, F4V, MKV, EVO, DivX, XviD, Quick Time MOV, RM, RMVB, M4V, VOB, etc. http://www.aunsoft.com/video-converter-mac/
For starters try this: ffmpeg -i output.raw -vcodec libx264 -pix_fmt yuv420p output.mp4 This should work. Then you can add other parameters such as bitrates.
Force index mencoder -forceidx input.avi -o output.avi -oac copy -ovc copy copy all mencoder -ovc copy -oac copy input.file -o output.file also see http://stackoverflow.com/questions/894903/how-can-i-validate-a-video-file-from-a-script
try using mencoder (the encoding part of mplayer) like this: mencoder -idx problemfile.avi -ovc copy -oac copy -o reindexedfile.avi (via http://www.kahunaburger.com/2010/01/30/fixing-an-avi-index-with-mencoder/)
Taking a bit of a guess here without knowing the phone and its platform, but 3GP videos from ffmpeg typically contain H.264 video. Your phone records MPEG-4 Part II video, which is (more or less) the predecessor to H.264 and therefore "simpler". Many old phones cannot play H.264 or only a strict subset of it. Given that the original video uses H.264 ...
FFmpeg version SVN-r23607, Copyright (c) 2000-2010 the FFmpeg developers This is clearly outdated. Thousands of bugs have been fixed in the meantime. You can download a newer version of ffmpeg here and try again: http://ffmpeg.org/download.html
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