Stephen Dixon
Forum Replies Created
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use -shortest. As in
ffmpeg -shortest -i inputone-%05d.png -i inputtwo.wav -map 0:0 -map 1:0 output.mov. It will truncate the output to the length of the shortest input stream -
It looks like it’s having trouble parsing the path – if you look at the line that reads
Error parsing options string: 'tempvideosfile2.mp4', that looks to me like it’s interpreting the backslashes as posix style escapes. Try giving it an absolute path to the movie, and escaping your backslashes eg movie=c:\temp\videos\file2.wmv -
As far as fixing the audio, you might want to use audio compression (not to be confused with file sizes). Putting it simply, Audio compression turns down the volume on the loud parts and brings up the volume of the quiet parts. I don’t think ffmpeg has audio compression filters, but Audacity (free) certainly does.
Just to extend on William’s post, to use the map command you use “-map input:stream” so for your situation: -map 0:0 -map 1:0 to map the first stream of the first file and first stream of the second file (the count starts at 0, so 0:0 is first stream of first file). If you want to know which streams are which just typing “ffmpeg -i yourfile.mov” will display all the file info including the streams, without doing anything.
As far as converting it to MPEG, the ffmpeg.org FAQ is a good starting point:
-stib
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Removed all traces of x264 and it seemed to work. Interestingly I had to specifically enable shared libraries when I built x264 again, because it’s off by default.
Thanks
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Thanks. I’m guessing they’ll be in /usr/local/lib?
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Firstly, memory has nothing at all to do with how much space you have on the hard drive. You seriously need to read a basic guide on how computers work if you’re making that kind of mistake.
But it’s probably not the issue anyway: the “error out of memory” thing often pops up when you have large images in your timeline. If you have any big (over 4k pixels wide) pictures in the timeline, scale them down in an image editor (If you need them really big in order to zoom into them use motion or another program to do it).
As far as the timebase thing goes, yes you need to create a new sequence with no clips in it and copy and paste (or you can cut all the clips out of the sequence, change the timebase and paste, but that leaves you with no original copy if it all goes to custard). If there are timing issues once you do that you will probably have to correct them manually. Why are you needing to change it?
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do you want to have the mp3 play at the same time as the video, or before the video? It’s unclear from your question.
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What does ffmpeg report when you try to encode the unsuccessful files? Are there any error messages?
BTW: Is there a reason you’re using aac instead of libfaac?
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That would depend on the codec used.
FFMPEG is able to read and encode a lot of codecs, many of which use some or all of these methods, and it can also write uncompressed raw video.
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SDI stands for serial digital interface. It’s uncompressed digital video. So it’s like firewire, but better.
Not sure about the cameras in question, but I know there are cameras out there that record in 4:2:0 natively, but can output SDI at 4:2:2.