I want to know the video codec and, mainly, the audio codec used to encode an HTML5 video because, for example, Firefox supports MP4 video but, in its Windows version, if the audio is encoded with ...

fourcc = cv2.cv.CV_FOURCC(*'XVID') The above line is used for avi video. In the same fashion, which codec do we use for mp4 videos in Ubuntu?

can anybody compare popular video codecs by encoding speed? I understand that usually better compression requires more processing time, but it's also possible that some codecs still provide compara...

I've been trying for about an hour now to register a codec I made for one of my classes in a game I am working on. The class is called Item. I tried the code and suggestions from these 3 places: ...

When I try to run images assets doesn't get properly loaded, I am getting an exception: The following assertion was thrown resolving an image codec: Unable to load asset: /images/p8.png` Some...

I found this post on how to encode ascii data to 7-bit GSM character set, how would I decode 7-bit GSM character again (reverse it back to ascii)?

Recently installed Ubuntu 22.04 on a DELL x86 64 bit laptop, and when I imported my mp4 files for whatever reason the built in video player can't play the mp4 files. Either tells me the codec can't...

I'd like to reach some sort of definitive answer for the following questions: Is alpha transparency supported in MPEG-4-based codecs? Is there any way to be reasonably certain that there is no al...

How can I convert a video from mp4 to webm using VLC, if possible? What codec should I choose? Do I need to reencode the sound? I'm trying to put an HTML5 video on a website with Flash as fallback....

I am trying to write video using opencv. It is important for me to do this precisely - so it has to be a lossless codec. I am working with OpenCV 2.4.1 on Ubuntu 12.04 Previously, I was using the ...

Is there a way to successfully always patch up any clips together in such a way that prevents weird glitches? I put together a .mp4 from smaller .mp4 files and I got a final video with weird glitch...

I want to know exactly which strings I can pass as codec to VideoEncoder.isConfigSupported({ codec, width, height }) but so far I have not found a definite answer: The TS declaration file only pre...

Hey I would like to know if there is any way to choose codecs when creating the offer/answer in WebRTC. There are currently not many video codecs to choose from, but there are audio codecs like Opu...

I am trying to decode an MPEG video file using LibAV. There are two terms which I am not able to grok properly, Frames and Packets. As per my present understanding, Frames are uncompressed video fr...

I have created a .exe file of a simple script with intentions to run it on a server however I cannot seem to figure out what this fault means or find any answers online. The fault code is as follow...

I see that there are a few questions on this subject but I am still getting errors. All I want to do is convert videos in my library to HEVC so they take up less space. I've tried this: ffmpeg -i...

I'm doing a series of tutorials by recording the screen and my voice. Just as PNG works best for screenshots, while JPEG is better suited for photographs (although lossy), which video encoding &amp...

Is there a way to ask an Android device what audio and video Codecs it supports for encoding? I found devices that do not support some of the codecs listed as mandatory in http://developer.android...

We're in the process of building and deploying a desktop based app on electron v 12.0.7. It'll be a (free) commercial software deployed to ~2-3M users worldwide. Recently our legal team enquired ab...

Why is it throwing this error on some files, and for other files it doesn't ? The files are all .mp4 videos. 'ValueError: MoviePy couldn't find the codec associated with the filename. Provide t...

I am trying to convert a mov video to mp4, but I don't want any compression to happen. I recorded it with Quicktime on a Mac and did so with maximum, uncompressed quality. When I run ffmpeg -i. I g...

I'm familiar with ffmpeg, but not with GStreamer. I know how to get a H264 frame through ffmpeg, for example, I can get a H264 frame through AVPacket. But I don't know how to use GStreamer to get a...

I'm doing a little bit of research about the DTX option in Opus: Discontinuous Transmission (DTX) reduces the bitrate during silence or background noise. When DTX is enabled, only one frame is ...

Goal: use MediaRecorder (or else) api to produce video files that are viewable cross platforms. Fail: current api falls back to container/codec on google chrome which is only viewable on chrome and...

I need to extract the codec properties like bit rate frames resolution file format of video captures from camcorder.