1
vote
1answer
21 views

Convert video changing only bitrate

I have a mediaplayer program which lags playing one specific file. My assumption is that it is because of too high video bitrate (41.3 Mbps) and too slow CPU (it is embedded system). So, I want to be ...
3
votes
2answers
630 views

Interactively concatenate video files

Problem : How to concatenate (join) multiple MP4 video files into one file interactively? There are a lot of programs that do this for two files from the command line. For instance : ffmpeg, ...
2
votes
0answers
209 views

Is there a way to mix between two RTMP streams (depending on which is up) using something like FFMPEG?

(Apologies about the question title, not quite sure how to word it) So I'm working on a turnkey streaming solution / server for a local LAN party, using the fantastic nginx-rtmp to handle incoming ...
6
votes
2answers
4k views

How to convert a VOB file to avi?

I am trying to convert a VOB file copied from a DVD into an avi in Ubuntu 13.10. I tried dvdrip, which failed due to a frame count error or something. I tried acidrip as well, but it always choose an ...
1
vote
0answers
740 views

Rotating a video (ubuntu 12.04)

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 ...
6
votes
2answers
1k views

Converting PNG frames to video at 1 FPS

I have video frames in PNG format at 1 FPS and I'm trying to convert them into a video using ffmpeg. If I do something like this: ffmpeg -i data/input-%4d.png data/output.mp4 I get a video at 25FPS ...
2
votes
0answers
815 views

Determining media format/encoding for DLNA system

How do you determine what parameters are needed by a DLNA renderer and server? I have a Samsung TV that is a DLNA renderer. I also have a Western Digital NAS running Debian and have Twonky and ...
2
votes
1answer
1k views

Fix error in mp3 file

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 ...