0
votes
1answer
217 views

How to keep source frame rate with mencoder/ffmpeg?

I would like to crop and rotate a video, and then encode it to mp4 or mkv. mencoder video.mp4 -vf rotate=1,crop=720:1280:0:0 -oac pcm -ovc x264 -x264encopts ...
0
votes
0answers
233 views

I've tried mencoder and MP4Box but can't properly concatenate my mp4 videos

I've tried MP4Box -add part1.mp4 -cat part2.mp4 concat.mp4 and get: [iso file] Incomplete box ...| Unknown input file type Error importing part1.mp4: Corrupted Data in file/stream mencoder -oac ...
3
votes
2answers
1k views

Add silence to the end of an MP3

Do any of you know of a way of adding silence of a fixed duration to the end of an MP3, in Linux? For example using MEncoder, FFmpeg, etc? It needs to be command line as it will be scripted and ...
2
votes
1answer
53 views

is it possible to trim a video file in linux without creating a copy and while watching video file

I realize this is a tall order and may not be possible yet. I would like to be able to trim off the watched portion of the video file on long video files (such as the olympics) to save disk space. I ...
3
votes
2answers
2k views

Extracting A Clip From An MP4 File In Linux on Kubuntu 11.10

I'm running KUbuntu 11.10 Linux. I would like to extract a clip from an MP4 file. I tried this command: myCLIPrompt:~/Downloads/temp/clips$ mencoder -ss 00:43:13 -endpos 00:02:12 -oac copy -ovc ...
2
votes
1answer
429 views

ffmpeg or mencoder - Convert a video using another one as a reference format-wise

I have two videos from different sources. I want to convert one of them so that its format, codec, framerate are the same as the other one. Is there a one-liner for it (where I can give the ...
3
votes
2answers
776 views

Hardsubbing MKV files that use .ass subtitles and embedded fonts

This question pertains only to Linux and FreeBSD. I have several soft subbed anime mkv files that I need to hardsub. they are all using .ass subtitles with embedded fonts. for example mkvinfo on one ...
3
votes
2answers
300 views

`mencoder` captures 10 minutes of audio in less than 10 minutes. How come?

I'm using mencoder to capture audio from a Encore ENLTV-FM3 video capture device. I have recently noticed that, since one week ago, when the machine was forcibly restarted due to a power outage, all ...
2
votes
1answer
209 views

Encoding multi-jpegs with mencoder, skipping broken files

I've multiple jpegs uploaded form IP cam via FTP, I use mencoder to periodically pack them into single avi file, problem is that sometimes one or two jpegs submitted by cam are broken, and this make ...
2
votes
2answers
1k views

How to join two video frames into one, so the final video plays two frames as one simultenously

I want to connect two videos into one. Let's take two videos from Youtube as an example. I want my final video to have the height = height of first video + height of second video and width = max(width ...
6
votes
3answers
2k views

Speedup a Video on linux

I dont want to use player like vlc to speedup the playback. I want to actually speedup playback in the original file. Its like I want video to be played 2 times faster.
2
votes
1answer
795 views

VirtualDub for Linux

Is there VirtualDub analogue in Linux? I know there is MEncoder but it runs in console.