Shorthand for "Encoder/Decoder". A codec allows to convert data into a different representation and decode it again. Codecs are mostly used in signal transmission, e.g. for audio/video playback or streaming.

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-2
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3answers
45 views

MP4 files I download look pale and have colors misplaced [closed]

Ok, first things first: here's a screenshot from a recap I've downloaded. I guess if Neil Patrick Harris would host the ceremony back in 70s it'd look like that. There's this obvious offset of the ...
1
vote
0answers
36 views

VLC freezes in fullscreen

I am running VLC media player 2.0.6 Twoflower under Linux Mint 17. I do not have a dedicated graphics card so the display output is set to X11. With certain .avi files (not all of them) the video ...
0
votes
0answers
40 views

Using ffmpeg for mp3 conversion: could not find codec parameters / unspecified frame size

I have an mp3 file that I can't play with any of my audio players that I have on Windows 8, so I decided to convert it using ffmpeg. I downloaded it from a website, which was able to play the mp3. I ...
0
votes
0answers
87 views

ffmpeg or video codec

I have this problem but I don't understand if is a codec or wrong ffmpeg profile. I'm viewing a video in a web player (videojs). From some PC video work good but, from other PCs, with the same version ...
0
votes
0answers
26 views

MJPEG format not working

Gphoto2 captures live preview frames from cameras and store them as a MJPEG encoded movie. For some reason, nothing besides ffmpeg works with it as it should, all programs just see the first JPG ...
0
votes
1answer
52 views

how to join ts files together into mp4 with ffmpeg?

I download a lot of streams since the internet speed is too slow to watch high definition. When I download a stream I find the .m3u8 file which points to the TS files. Then I use the following ...
0
votes
1answer
28 views

Change audio track of a video without codec

I have some AVI files of an old Win 3.11 game, where I want to change the audio track, without touching the video part. I have a (propertiary) codec as *.drv file (VfW; works in Win95), but it is ...
1
vote
1answer
65 views

Installing the iLBC codec (libilbc) on Mac OS X for use with FFmpeg

I'm trying to use FFmpeg to encode files with the iLBC codec, e.g.: ffmpeg -i audio.wav -ar 8000 -acodec ilbc audio.lbc -y This worked fine on Windows, however on Mac OS X I'm getting the error ...
0
votes
1answer
56 views

ffdshow filter cannot be selected in Media Player Classic-HC

I installed ffdshow on my Windows 8.1 x64, as you can see: My MPC-HC can't see it as an external filter: Where should I look for it?
0
votes
0answers
69 views

Windows media player streaming don't opens all video files on TV?

have some problems with WMP streaming option... I stream video from my PC to my Samsung smart TV. But not all videos i can open buy streaming! i have 2 video files that are mp4, one video that i ...
1
vote
0answers
66 views

How to set profile compatibility of an fMP4 using ffmpeg?

I'm using ffmpeg to generate a fragmented mp4 stream that will be consumed by an HTML5 player. I think I have a correctly formatted mp4 stream of data with an empty moov at the start and a series of ...
0
votes
0answers
166 views

How can I change video codecs for Chrome/YouTube?

Today I opened this video which is available in 720p and 1080p at 50 fps. For some reason my laptop can't handle it. I have Core 2 Duo T9300 2.5GHz. Single core performance of this CPU is just 30% ...
1
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0answers
28 views

How do I view an AVI file that requires GTCC codec?

I have pretty much tried every type of decoder package out there (K-lite, CCCP, Satsuki, etc.) but no luck. I used an old webcam back in the early 2000s when recording. Really need to know what this ...
2
votes
0answers
59 views

What are the rules for using Dolby codecs in mobile and desktop apps?

I'm developing a video player and can't get a straight answer. VLC on iOS plays Dolby codecs (AC3, EAC3, TrueHD) if the user is not in a US timezone. I didn't check the source code for Android, but it ...
0
votes
2answers
886 views

Windows Media Player Play to - failed to retrieve media information from media server

So, I'm recently having issues playing any sort of mp4 file to my xbox one. Everytime I try, I just get the message "Failed to retrieve media information from media server". I've tried the common ...
3
votes
1answer
268 views

Enabling Microsoft Windows Media player to play Matroska (MKV) container and H.264 codec videos

My understanding of the technical aspects associated with Video files is very basic. Our company developed a Thick-client software product for the commercial market that would allow users to view ...
0
votes
0answers
27 views

Windows Search for Video Codecs

Is it possible to search a folder for all video files using a certain codec? I got a bunch of video files from people, and one of the codecs used by some is giving me problems. So I would like to ...
0
votes
1answer
80 views

Enhance sound of a Video recorded by CamStudio

Ok, so I am trying to use CamStudio for my own youtube channel. I am new to this video codec thing, but I followed this tutorial completely. I am now testing it in full 1080p resolution. I used Xvid ...
0
votes
0answers
141 views

HD Audio codec dump from Windows XP SP2

I have win xp running on my Apple Macbook Air 1,1 (early 2008), with Bootcamp and all the stuff working properly (in particular, I'm interested in the internal microphone) I'd like to get a codec ...
0
votes
0answers
90 views

Video is pixelated on my old HP G60 laptop

I've taken my usual computer in for repair, which was a Dell Inspiron with Windows 7 64-bit. I'm now using an HP G60 notebook with Windows 7 32-bit. I'm noticing a problem that any video files I watch ...
0
votes
1answer
310 views

Play `wma` files without installing whole Media Feature Pack in Windows x N

I have Windows 8.1 Pro N version installed, which comes without Windows Media Player and 'media features'. This includes no support for *.wma files. I have been looking for a way to install codec for ...
0
votes
0answers
183 views

Codec information missing after clicking on link to wmv file

I am running Windows 7 64 bit. When using Internet Explorer 9 or Chrome, I get the error: "Windows Media Player cannot play the file. The player might not support the file type or might not ...
2
votes
1answer
3k views

Microsoft Camera Codec Pack not working in Windows 7

Because the Windows Update was not offering this as update after several update checks, I went online and downloaded the Microsoft Camera Codec Pack (6.3.9721.0) from the download center. I used the ...
1
vote
1answer
159 views

What is the lowest FPS at which the human eye can notice a flickering image? (testing this with ffmpeg)

I wanted to check what the lowest FPS is that the human eye cannot notice as flicker. I created a white jpg and a black JPG. I started with 25 fps which means that I have 24 jpg of white and 1 of ...
0
votes
1answer
3k views

“windows media player cannot play the file” mp4

We have an .mp4 video hosted on a web site. I can play back the video from the production version of the web site, but not the test version of the site. The production web site has the .mp4 MIME ...
0
votes
0answers
385 views

What video codec over RTP protocol?

I 'm trying to achieve video streaming from a Linux server (ffserver) to a Windows client (VLC player). Although I made it over HTTP protocol, I want the multimedia to be transferred over RTP ...
1
vote
1answer
64 views

Keep input codecs

I have an MKV file with H.264 video and AAC audio. With FFmpeg the default audio codec for MKV is AC3, so if you run a command such as ffmpeg -i infile.mkv -ac 2 outfile.mkv it will transcode the ...
0
votes
1answer
1k views

Optimum parameters for FFMPEG to keep file size

so the idea is: I want to convert every.single.video I have in a 1 terabyte drive to a format that my Chromecast can play (https://developers.google.com/cast/docs/media) and I'll happily leaving my ...
0
votes
1answer
55 views

How to change the code of avi file

I have never worked videos but i need to run a .avi file on windowx xp. The .avi file is smoothly playing in windows 7 bu not able to play in xp I want to play only in windows media player, dont want ...
3
votes
2answers
6k views

ffmpeg: Could not find codec parameters for stream 0 (Video: h264) unspecified size

I try to convert a video from .raw to .mp4. For this reason I did download, build and install both x264 and ffmpeg. However, command: ffmpeg -f h264 -i output.raw -vcodec copy output.mp4 fails with ...
0
votes
0answers
209 views

FFMPEG doesn't convert from m4v files

I am trying to transcode an m4v file from iTunes so I can play it on Windows or XBox. I am running ffmpeg from Windows. Is there some -vcodec I need to specify or something I need to install? ...
3
votes
2answers
2k views

Microsoft Internet Explorer: “Your browser does not support this video codec (wmv, flv)”

I'm trying to watch the video in Internet Explorer 11 x64 (Windows 7 SP1 x64 Ultimate). I have the following error message: "Your browser does not support this video codec (wmv, flv)". How can I solve ...
0
votes
1answer
5k views

Use ffmpeg copy codec to combine *.ts files into a single mp4

I've got a bunch of ts segments described by a single index.m3u8 file: index.m3u8 segment1_0_av.ts segment2_0_av.ts segment3_0_av.ts segment4_0_av.ts segment5_0_av.ts I know they ...
1
vote
1answer
50 views

Does flash video in browser required video codecs?

Imagine situation when I don't have any video codecs and flash installed on my PC. I've downloaded and installed flash player from here. Can I start watching video in the web, or additional codecs ...
2
votes
1answer
2k views

get avi file with codec UMSV to play in vlc, or convert with ffmpeg

I have some video from security cameras. The program outputs in avi file extension. I can play the file in Kaffeine (openSUSE 12.3) but the file doesn't play in vlc--says it does not play files with ...
1
vote
2answers
1k views

Which codecs are supported by ffmpeg libraries in system?

I have Linux server/workstation box which had ffmpeg compilled for it some time ago. Now one type of library for internet communication does not seem to work on one of the endpoints. I think that real ...
1
vote
2answers
921 views

can't find a mp3 codec on ubuntu

Trying to convert an audio CD to mp3. ubuntu says ffmpeg is deprecated and I should use avconv Here are the codecs after i installed all I could find in aptitude for libav that provided codecs. ...
2
votes
1answer
3k views

Which Codec to avoid Recompression in youtube & vimeo

Which codec to use to compress videos that youtube and vimeo don't recompress ? to avoid the quality loss of recompression @Chris let me make it more specific (i posted a geneal question so that ...
3
votes
1answer
17k views

How to fix choppy sound replay with VLC

I've got a problem with vlc playing some file formats, for example mkv or m2ts (I didn't notice this problem with avi though). The sound plays ok, than dissappears for a second or two, than ...
1
vote
0answers
282 views

Fix audio codec error with ffmpeg

I had an AVI (XVid) file with 2 audio channels. I removed the FIRST audio channel using ffmpeg as: ffmpeg -i <input.avi> -acodec copy -vcodec copy -map 0:0 -map 0:2 <output.avi> Now, ...
3
votes
3answers
5k views

What codecs does the Windows 7 & Powerpoint 2010 combination support out of the box?

Apologies if this question has been asked many times before... but I can't find a duplicate. I'm helping a colleague prepare a Powerpoint presentation. We have no control over the computer that it ...
0
votes
0answers
52 views

Knowing which codecs to install to play a video properly

I donwloaded a video in mp4 format from YouTube using downloadhelper firefox plugin. When I play the video with Wondershare, it plays but there is no audio. How do I know which audio codec I need to ...
2
votes
2answers
7k views

Which one VoIP SIP audio codec should I choose to high quality calls?

The quality of VoIP calls depends on the codec used for the transmission and on the bandwidth of Internet connection. I want to use best optimized codec for my Internet connection. I have to select ...
1
vote
0answers
350 views

Windows 8 Embedded Standard - Obtain WMV Codecs?

I'm evaluating Windows 8 Embedded Standard to be used for media playback. Following creating an installation with every single component enabled I find that the OS is unable to play back WMV files, ...
1
vote
1answer
428 views

ffmpeg get to Unhandled pixel format 0x11111111 only with some images

Hi I'm using ffmpeg to transform images in video. I need 1 still image for a video of 2 seconds, I'm using this call: ffmpeg -loop 1 -i img.jpg -t 2 -vcodec mpeg2video result.avi If I use some test ...
3
votes
3answers
383 views

How do I find the codec I just installed?

So I just downloaded CamStudio Lossless Codec 1.5 and ran the setup (http://free-codecs.com/camstudio_lossless_codec_download.htm). I did not see any hints during the setup process as to where ...
1
vote
1answer
649 views

How can I get the Microsoft Expressions 4 Codec to work on XP SP3?

The codec allows you to preview the recording you just took. The recorder itself and the encoder both seem to work just fine, but when I try to preview a recording it says it can't find the codec. ...
1
vote
1answer
203 views

I cannot play a DVD in Fedora 18 despite a ton of research and terminal time.

Help! I have tried everything I can think of. I've done a ton of research and installed a lot of stuff via terminal and I cannot figure out how to get a DVD to play in Fedora 18. I've installed ...
1
vote
1answer
2k views

The G2M4 codec of Go to meeting?

I have some wmv files which use the G2M4 codec. They were created by go to meeting. Only windows media player can play these files. I want to remove this codec (is that even possible?) or convert it ...
5
votes
1answer
5k views

Why does a Raspberry Pi require a key to playback MPEG2 content?

I was reading here and the article said that linux distros often use free versions of MPEG2. On my Raspberry Pi, however, I had to purchase a license to achieve playback of some of my files. I never ...