Questions specific to linux environment

learn more… | top users | synonyms

0
votes
0answers
29 views

Switching between H.264 video streams on the fly?

I have several H.264 encoded MP4 files, as well as still images. From these I want to generate a single video stream that I can broadcast. The stream will be composed of alternating still images and ...
1
vote
0answers
131 views

How to transcode mkv media into different resolutions with ffmpeg

I am trying to setup a server that allows me to broadcast a single media file using ffmpeg to a ffserver so that I can use the RTP protocol to allow clients to view the media at different resolutions ...
1
vote
1answer
62 views

What is good software for camera recording under Linux?

I use Linux(Mint Linux Petra) and will probably switch to Ubuntu 14 soon. I need to record video with my camera on my laptop(imagine I use a web-camera for simplification) and I need to see real-time ...
2
votes
2answers
82 views

What is good software for video editing under Linux?

I plan to create some homemade video lectures and I am under Linux. Is there comfortable open-source tool that has the following abilities: to clear noise to have a few sound channels to allow ...
1
vote
1answer
229 views

How to get a crisp, exact color match for lossless screen-cast?

Background Recording a screen-cast (no audio) in Xubuntu Linux. The following image shows a side-by-side comparison of the video (left) versus the desktop (right): The screen-cast is recorded ...
2
votes
1answer
999 views

Video Capture using ffmpeg (V4L2 indev) Results in Bad A/V Sync

I actually contributed to a bug report on this issue a year and a half ago ( https://trac.ffmpeg.org/ticket/692#comment:15 ). Basically, the problem is that using ffmpeg to record from a USB video ...
1
vote
0answers
73 views

Kdenlive Render Effects

I'm using Kdenlive on Linux Mint 16, and I was finding that my keyframed "Box Blur" effect was significantly slowing down playback, and so I thought there might be a way to render the effects on a ...
0
votes
1answer
608 views

Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

ffmpeg -i test.mp4 -acodec libvorbis -vcodec libvpx out.webm ffmpeg version N-57647-g1880294 Copyright (c) 2000-2013 the FFmpeg developers built on Oct 30 2013 19:25:44 with gcc 4.4.7 (GCC) ...
0
votes
1answer
133 views

Forcing kdenlive to adapt its profile to the video clip

kdenlive starts with a profile for instance 1080*720/etc. Then I import a video clip. How to tell kdenlive to modify its profile to match the video clip? Modifying the profile manually by ...
1
vote
1answer
493 views

Join / Concatenate .wmv files

I have 2 .wmv files which are equal in codec information (windows media video 9 in 640x360 with 25 fps; windows media audio 2 in stereo with 44,1kHz and 16 bits per sample). I'd like to concatenate / ...
1
vote
0answers
620 views

High bitrate in AVCONV converted MPG file causes DVD reading problem

I convert AVI to MPEG with folowing command: avconv -i file.avi -c:v mpeg2video -b:v 6000k -c:a mp2 -b:a 384k file.mpg When the MPG file has been burned to DVD it is hard to read afterthat. The DVD ...
1
vote
1answer
137 views

How to convert video for viewing on Sony Ericsson C702?

I'd like to convert some of my videos for viewing them on Sony Ericsson C702 cell phone. But I couldn't find the right set of parameters (a/v codecs, container, etc.). I'd prefer a solution using ...
4
votes
4answers
3k views

How to get FFMPEG to join non-sequential image files? (skip by 3s)

I have a bunch of images, that follow this pattern. 0001.png 0004.png 0007.png 0010.png 0013.png 0016.png 0019.png ... They're in the correct order, but FFMPEG ignores anything after the first ...
4
votes
3answers
848 views

120fps 720p footage with real time playback on Ubuntu? + editing?

I have a laptop with an i7 CPU, 1.73 GHz, 8GB RAM, Ubuntu 10.04 with an "ATI Mobility Radeon HD 5800 Series" graphics card. I have compiz enabled (which may be one of the culprits with the problem ...
1
vote
1answer
432 views

How to create a rolling ball with Python in Blender?

My friend told me that you could create games in blender and it has an game engine in it. Now I want to do some simple things with blender such as rolling ball, the topic now in this question. ...
2
votes
2answers
143 views

Options to speed up Hobbyist Rendering?

How can I speed up hobbyist animation-rendering project? It would be cool to see things faster, I use tools such as Blender.
0
votes
4answers
351 views

Is Open-Source -film production possible with open-source tools?

Samuli -- of the Iron-Sky -film -- mentions (3.40 here) their used software: adobe.com, Adobe Creative Suite 5 autodesk.com, Maya newtek.com, Lightwave 3D 10 renderpal.com, RenderPal ...
5
votes
2answers
228 views

What video codecs can provide “adaptive quality”?

Background: I am trying to compress lossless bluray tracks to a more storage friendly size without a huge loss in quality. What I've been doing thus far: Exploring compression options with ffmpeg. ...
2
votes
1answer
123 views

Is there a way to manage Final Cut project files under Linux or Windows?

I don't have a x86 Mac at hand I'm having trouble organising a large collection of Final Cut 7 projects. I have tried to run Final Cut under Virtualized OS X. But I have trouble installing it since ...