Tagged Questions

1
vote
0answers
15 views

How to set duration for avconv?

I'm trying to cut a portion from an mp4 video with avconv, but it doesn't seem to care about the -t param. My command line is avconv -t 10 -i GOPR0001.MP4 cut.MP4 This will process the whole ...
0
votes
0answers
28 views

FFMPEG error : libx264 must be installed and version must be >= 0.118

I am trying to use libx264 decoder with FFMPEG, for which I have installed libx264 library on my ubuntu 12.04 LTS as described on this ...
1
vote
1answer
32 views

ffmpeg / avconv follow_mouse not working?

I'm trying the option -follow_mouse with both ffmpeg and avconv and I can't make it work. avconv version 0.8.6-6:0.8.6-1ubuntu2 tells me: Option follow_mouse not found. ffmpeg version ...
0
votes
0answers
70 views

Streaming pre-recorded video as webcam source in 13.04

The source video can be encoded into virtually any format. Let's say it sits in ~/Videos/Test.webm. The end result is simply to stream the video, with sound, directly through a 'fake' video device, ...
2
votes
2answers
577 views

How to fast convert mp4 to webm using ffmpeg?

Sorry to disturb you but I'm in a kind of a trouble. I have to convert 76 mp4 files to webm for the purpose of a website that uses HTML5 videos. I'm talking about 10 Gb of mp4 files... I know I can ...
4
votes
2answers
425 views

ffmpeg resize “could not find codec parameters”

I'm a newbee to ubuntu and need your help: (32bit ubuntu 12.10) my command: ffmpeg -i ../output_images/particles%04d.png -r 30 -b 30000k final_movie.avi works for my 800x800 *.png pictures ...
2
votes
1answer
98 views

Is it possible to do a lossless conversion from m4v to webm?

I have several m4v files, which I need to convert to webm. I am using ffmpeg for doing so and have used commands such as: ffmpeg -i myfiletoconvert.m4v output.webm The conversion works fine, and ...
1
vote
0answers
111 views

Why can't I install codec for ffmpeg?

When I run sudo apt-get install libavcodec-extra-53 I get The following packages have unmet dependencies: libavcodec-extra-53 : Depends: libfaac0 but it is not installable
0
votes
1answer
81 views

Best is the best format to store videos? [closed]

I download and import videos from various website and devices. I also view them on various devices requiring different formats. I want to convert my videos into a single base format, then convert ...
1
vote
3answers
2k views

How do I add and/or keep subtitles when converting video?

I have a mkv video I want to convert to mp4, but every which way I try and convert it (Handbrake, WinFF, ffmpeg, mencoder,...I lose the video's subtitles. How can I convert the video,keeping the ...
2
votes
0answers
977 views

Can't capture video from usb-webcam with ffmpeg

i have a hama usb webcam which works fine with the fswebcam command to capture single frames but when i try to capture a video with ffmpeg i get an error: sudo ffmpeg -f video4linux2 -i /dev/video0 ...
0
votes
1answer
286 views

Downsize video for use on Android phone

I've got some 1080p movies on my Ubuntu system, which I'd like to trasfer to my Android phone for when I'm in a situation where I have nothing to do (like an absent teacher at school). My phone screen ...
1
vote
1answer
196 views

Can't open video files

I could open video files but then I installed ffmpeg to install opencv and now it does not open video files. I tried vlc and ubuntu's Movie Player to open .mkv, .avi, and .mp4 but none of them opened. ...
1
vote
1answer
219 views

Audio delays progressively when recording with ffmpeg

I am trying to record screencasts in Ubuntu 12.04, I have a working command, the audio sounds great and the video looks great. I have one issue though, the audio delays as the video goes on. At the ...
2
votes
1answer
416 views

Record and display Kinect audio and video via avconv

I'm trying to record audio and video from a Kinect using avconv but I seem to have trouble specifying the right options. avconv -f video4linux2 -video_size 640x480 -c:v h264 -c:a ac3 -i /dev/video1 ...
1
vote
1answer
1k views

capturing video from webcam and saving to a file

I am trying to capture video(alongwith audio) from a webcam. I need to record the video and save it to a file,for further processing. Would like to do it through CLI. Any ideas how to do it using ...
3
votes
1answer
422 views

Why can't I watch video after installing the original ffmpeg fork from Jon Severinson's PPA?

I just installed the Jon Severinsson ffmpeg PPA, and I cant watch any video and get audio only, I get a need extra plugins needed install? and then packaged dependencies could no be resolved . Here ...
0
votes
1answer
45 views

How can I run “Video for everybody” in current ubuntu (i.e. without specially compiling the latest ffmpeg)?

I first asked "How do I convert a video to all formats neccesary for Video For Everybody" on Super User. The answer involved compiling the latest ffmpeg. Later, I asked "How do I strip the ...
0
votes
2answers
1k views

best command line tool to join videos

I have used ffmpeg, but with it you have to first make mpg videos then do cat video1.mpg video2.mpg > joined.mpg and then convert to joined.mpg to joined.mp4 with ffmpeg to be able to upload on ...
3
votes
0answers
144 views

5 seconds image intro with ffmpeg [closed]

I have one mp3 song song.mp3 and 2 jpg files 1.jpg 2.jpg Now, I want to make video from mp3 with jpgs as a background, but in a way so that 1.jpg streams for first 5 seconds then 2.jpg till the rest ...
3
votes
1answer
873 views

How do I record audio and video to a file from my webcam using ffmpeg?

This says to use /dev/dsp as the audio input. But I don't have a /dev/dsp I can find my webcam's mic in /dev/snd as /dev/snd/by-id/usb-Dynex_Dynex_1.3MP_Webcam-02
1
vote
4answers
1k views

video gets corrupt after converting ogv to any format using ffmpeg

I was trying to convert ogv video to avi using ffmpeg. It does convert without any error but the output video seems to be corrupt. Does not matter which format I convert it to, out put is same as ...
2
votes
1answer
7k views

How can I convert a 1080p wmv video to a 720p video?

I have a 1080p wmv video that I'd like to convert to a lower quality (preferably 720p) video. I would like to keep the audio intact. How can I accomplish this in Ubuntu?
0
votes
1answer
153 views

Use Totem's decoder to re-encode video?

I recorded an OGV screencast in GTK-RecordMyDesktop that seems to play back differently in different players (and YouTube doesn't seem to understand the video stream at all -- it just displays a ...
1
vote
2answers
138 views

How to convert Windows/Mac operating systems created, MPG file to Linux compatible file?

I have one file Film.MPG. Which is 720P and 50 frames per second. When i play the file using gst-launch playbin uri=file:///tmp/final.mpg it does not work. But it works with Mplayer/VLC. I noticed ...
1
vote
1answer
599 views

Authoring a DVD into an image file, from command line

I would like to convert a whatever-type video file into an ISO image I could then burn to a DVD (on another computer) - so that the final disc is playable on a regular DVD player. I already have ...
1
vote
0answers
332 views

Openshot crashes when exporting [closed]

I want to export a video on OpenShot but it crashes when I do it. I saw this and I installed the Medibuntu repositories, libavcodec-extra-52 and libavformat-extra-52 packages and ran sudo apt-get ...
3
votes
1answer
733 views

ProRes encoding and decoding?

Is there a way to encode/decode prores mov files (mostly decode)? I've been playing around with ffmpeg and mencoder/mplayer from the ubuntu repos, but they both report that it's an unknown codec. ...
6
votes
1answer
4k views

How can I get ffserver to work?

I have a mp4 file which I wish to compress, resize and stream via RTSP. My ffserver.conf file looks like this: Port 9091 RTSPPort 5454 BindAddress 0.0.0.0 MaxHTTPConnections 2000 MaxClients 1000 ...
9
votes
3answers
8k views

How do I use ffmpeg's “-vf” / “-vfilters” option without recompiling ffmpeg myself?

I have ffmpeg install from apt (version 4:0.5.1-1ubuntu1). I have a video that is up-side-down, so I want to flip it vertically. The ffmpeg documentation says to use the -vf option (which I see was ...