Skip to main content
Unix & Linux

All Questions

Ask Question
Tagged with
7 questions
Newest Active Bountied Unanswered
Filter by
Sorted by
Tagged with
1 vote
0 answers
1k views

I have some VOB files, grabbed from DVDs. I need to make AVI/MP4 files for uploading online. The original resolution is 720p and I want 720p, but need to scale as the pixels are not square (720x480 to ...
Mikhail Ramendik's user avatar
  • 538
0 votes
1 answer
2k views

I often create digital animations by preparing all the frames in .png format (with minimal compression), that I need to convert to video format for upload to websites such as reddit, instagram, gfycat....
Nicola Sap's user avatar
  • 111
2 votes
1 answer
6k views

The following command ffmpeg -f alsa -ac 2 -i plughw:0,0 -f video4linux2 -s vga -i /dev/video0 -f ogg - > video.mp4 Does not produce a .mp4 video. I want to replace -f ogg with -f <mp4 format&...
j1088099.mvrht.com.'s user avatar
  • 3,213
4 votes
0 answers
6k views

I have a MP4 file with AAC audio and H264 video, let's call it B.mp4. I also have file A.mp4 with the same picture resolution, but: different FPS possibly different audio/video bitrate different ...
Andrea Lazzarotto's user avatar
  • 536
28 votes
4 answers
61k views

I've tried to figure this out myself, but the myriad of options just baffles me. I want to use ideally either ffmpeg or mencoder (or something else, but those two I know I have working) to convert ...
Andy Jeffries's user avatar
  • 283
2 votes
0 answers
2k views

I have a video, shot on my android phone, which I want to rotate 90 degrees clockwise for computer viewing. Here's what I expect should work: ffmpeg -i infile.mp4 -vf "transpose=1" -an -vcodec mpeg4 ...
Alasdair's user avatar
  • 281
4 votes
1 answer
5k views

I have an mp3 file that plays OK on computer but there is a problem to play it on mp3 player. ffmpeg shows this: $ ffmpeg -i file.mp3 [mp3 @ 0x8de72a0] Invalid size in frame , skipping the rest of ...
xralf's user avatar
  • 15.3k