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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1answer
24 views

Am I even burdened with choosing where and how to decode my video?

Whenever I setup K-Lite codec pack, like during an MPC install, this step of K-Lite always trips me up: It is never clear to me what is going on. No matter what I choose I will first have to decide ...
0
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0answers
19 views

Unable to play mp3 file on some devices?

I have noticed a certain phenomenon over the last few years... Some mp3 files do not work with certain devices: Example: If I download a file file from the internet, I will be able to listen to it ...
0
votes
0answers
23 views

Quality loss in ffdshow deinterlacing settings

I have been using ffdshow and haali media splitter aka matroska splitter as video codecs in order to export video in Ableton Live. However, external configuration of ffdshow is required. There are ...
0
votes
1answer
98 views

Decoding x265 HEVC more efficiently

I have an old Extreme i7 first generation with 12 threads running a PLEX server. LAtely I've started adding more files compiled using x265 over x264. I noticed that when the system runs a x265 file, ...
1
vote
1answer
35 views

Common video format for TV (old decoder) playback

I have a PHILIPS TV/Monitor. I want to watch movies from USB flash drive directly on the TV. The problem is - PHILIPS do not have any updates for the TV software. I requested an update, but request ...
0
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1answer
50 views

asterisk 11.7 with app_mp4 for playing mp4 videos

I have successfully compiled and run app_mp4 for asterisk 11.7 and recording audio/video with MP4Save. I am using ulaw as audio codec and h263 (simple h263 not 1998 or 2000) video codec. Although I ...
0
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1answer
20 views

Raw Bitstream vs Container?

I've been researching multimedia formats (although recently, I've been told not to use the word "format" as it's ambiguous.) I learned that a video file is composed of the Raw Bitstream encoded ...
2
votes
1answer
23 views

Need help searching video files by encoding format profile

I am looking for a way to search all my video files (directory/recursive) that have a "Format profile" of QuickTime and/or "Codec ID" of qt. I just found out that my encoding software has ...
1
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0answers
31 views

(FFMpeg) Split the video by size after conversion

I have a 5,000MB long video in .mp4 format. I would like to split the video into segments by the size. For example, I set the size to 1,024,000KB, or simply 1,024MB, because I want it to be accurate. ...
0
votes
1answer
48 views

Video compression size s and codecs from JPEG

I am building a data logger with 3 cameras which output as jpeg frames (o.79MB/jpeg @24bit/pixel) at 24 frames per second. I want to take these images and convert it to a video. Each For the video I ...
1
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0answers
58 views

Strange video behaviour

I have a video made by my mobile phone (Huawei Honor - Android 2.3). I haven't problems with them some time ago. Unfortunately, I have now and I don't know why. I'm using Linux Mint 17. When trying ...
0
votes
0answers
51 views

avconv combined audio and video streams, mplayer fails to play audio

I have a movie.avi file compressed with DivX which I'm trying to recompress with H264. I compressed the video stream with x264, leaving the audio as is. I'd prefer to compress everything at once, but ...
0
votes
0answers
250 views

No sound in mplayer - A_OPUS codec

mplayer2 fails to play the sound of some .mkv files. I installed vlc and it is able to play with sound. mplayer2 output: MPlayer2 2.0-728-g2c378c7-4+b1 (C) 2000-2012 MPlayer Team Playing Invisible ...
0
votes
0answers
211 views

Why won't Windows Media Player use my PowerDVD MPEG-2 codec?

My MPEG-2 files will not play in Windows Media Player (32-bit) in Windows 10. This includes both .mpg and .m2t files. When I attempt to play them I get the message "Windows Media Player encountered ...
0
votes
1answer
232 views

Problems installing ffmpeg with Homebrew

I get the error when I try to convert mp4 to webm: Encoder (codec vp8) not found for output stream #0:0 Google search tells me that I need libvpx installed, but I've done that. I've installed with ...
0
votes
1answer
82 views

Troupble with ffmpeg MP4 to Webm

I get the error when I try to conver mp4 to webm: Encoder (codec vp8) not found for output stream #0:0 Google search tells me that I need libvpx installed, but I've done that. here is the rest of ...
0
votes
0answers
74 views

Codec missing powerpoint; how do I get get my media to play?

I designed a presentation pull of interconnected audio & video files in 2013. Edited since in 2007 and most of my media wont play. Tested in 2010; It offers to upgrade the media and then says ...
0
votes
0answers
96 views

Convert videos to MP4 iPad (h264 and aac), but leave video codec alone if h264 already

I want to batch convert video files with different extensions and convert them to MP4. If the video codec is already H.264, I want to copy it and convert the audio only if it is AC3, MP3, or anything ...
2
votes
0answers
273 views

Cannot play video file from external hard drive on Windows 10

I have upgraded my OS from 8.1 to 10 and I have this weird problem that if I open a video file from my external hard drive it doesn't play but when I copy the same file to my desktop it works fine. I ...
1
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0answers
220 views

Corrupt MP4 file: ffmpeg codec, global header, and dvvideo errors. Can it be repaired?

So, I have a number of corrupt MP4 files (some corrupt AVI files, too, but I believe that's a different problem). They seem to have gone corrupt when I had an external hard drive that they were on ...
2
votes
1answer
511 views

Is it possible to use aptX on unsupported computers or phones?

I've been reading up recently on different ways of wirelessly streaming media. At first I ignored bluetooth connections because of the quality, but then I started reading about aptX, which sounded ...
0
votes
0answers
55 views

OneNote 2013: How to change the Codec from Windows Media Audio 9 to 10

I'm trying to improve the audio recordings in OneNote. I need to be able to record lectures in lecture halls without the audio sounding garbled. HELP PLEASE. I think I might be able to start by ...
0
votes
1answer
188 views

Php ffmpeg exec

with code $a = exec('"ffmpeg" -y -i "test.mp4" -ab 128k -s 640x480 -vcodec mpeg4 -acodec:a copy "output.mp4" 2>&1 ', $output, $error); Input file was 82.21mb output file was 13.74mb ...
0
votes
1answer
72 views

What does Asterisk need codecs for?

Let's take a system which consists of one Asterisk server and two SIP clients. Each client has an equal set of codecs installed. Traffic encoding and decoding is performed on a client side. Then why ...
1
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1answer
21 views

Are video encoders installed per-application or system-wide on Windows?

I normally use Linux where, if I want programs to be able to encode video, once libXXXX.so is installed all programs which are aware of it can use it. By comparison, I have witnessed various programs ...
0
votes
1answer
40 views

What all factors affect the ability of a video player to play a particular file?

I am trying to determine what all factors decide whether a file can be played by a particular video player, such as software or dvd player or TV with usb function or any media player. Are there other ...
1
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1answer
401 views

Playing opus files under ubuntu

Opus is a new audio codec standard for audio on the web. Features include: Better compression than mp3/ogg/aac. Good for both music and spoken word. Dynamically adjustable bitrate, audio bandwidth, ...
2
votes
2answers
173 views

How to get and install g723 codecs for sip applications?

I install an ubuntu desktop in my company network (windows network) that use SIP on software phone and hard SIP phones. I use Jitsi that is a good client for SIP and works well with others software ...
2
votes
1answer
2k views

FFmpeg - PNG / JPG - Invalid data found when processing input

I am trying to add a watermark to a video with FFmpeg. I have a custom build of FFmpeg that I am creating with a view to keep the binary size down. I seem to have excluded the ability for FFmpeg to ...
2
votes
1answer
104 views

How to hide the opaque gray information on MPC HC in the upper left of the video

I just updated K-Lite Codec Pack. The updated version of MPC HC is showing this gray opaque OSD box: Anyone knows how to disable that? I can't seem to find the option to remove it. It's getting ...
0
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0answers
220 views

Incorrect Codec Parameters While using '-acodec' option while Working with FFMPEG

I am working with FFMPEG Library. I am capturing streams in particular compression codes to the destination file with the specified format with the following command: ffmpeg -i ...
0
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0answers
95 views

How can I encode an image sequence to a 24bit RGB888 AVI file on OSX?

I would like to convert an image sequence(PNG or JPG) to an RGB888 avi file on OSX. I used VirtualDub on Windows, but I'd rather not go back and forth between operating systems if I can. I did try ...
0
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0answers
64 views

FFmpeg Degrades Quality of Video [closed]

I have been tasked with converting a batch of videos from MOV to MP4 for an application my company is building. We're converting the videos because a short MOV file has an extremely large file size ...
1
vote
1answer
2k views

How do I know if hardware acceleration of the GPU is enabled in VLC?

Under the new VLC interface (Linux) with video-Catalyst driver installed what option I can chose to enable GPU hardware acceleration? How can I be sure it is enabled? $ vainfo give me this ...
1
vote
1answer
211 views

Unable to re-encode audio stream with different bitrate using ffmpeg

A similar question has been asked elsewhere without a satisfying answer for me. The following ffmpeg command results in error. When "-c:a copy" is added to just copy the audio stream, the video ...
0
votes
0answers
75 views

How do i configure background traffic in Opnet 16.4?

I am currently working on a project which investigates codec performance over IPv6 networks. i have a two topologies for each codec, one with background traffic and one without. so far i have only ...
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votes
3answers
177 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
361 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
219 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
289 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
67 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 ...
1
vote
1answer
735 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 ...
1
vote
2answers
80 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
2answers
326 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
370 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?
1
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0answers
347 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
793 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
57 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
152 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
3k 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 ...