So the intended audience should also be considered when selecting a keyframe interval. And I think it allowed a lot of users to watch video who previously weren't able to watch at all. It is heavier on encoding and decoding than. Although the suffix of video file is mp4, not all video file encoding formats support video playback. But I always get a sped up version of the stream and a fps of around 3 even tho the input is 15. It is currently being used in formats such as Blu-ray, MP4, Flash (F4V), HTML5and most modern portable devices. Ive tried modifying the bellow command with a bunch of different options Ive found while searching online. I watched a presentation from Facebook where they said they use 5 seconds because the compression benefit over shorter GOP sizes gave users in slow network conditions (which includes massive numbers of people in developing countries like India) a better experience. Im struggling to configure ffmpeg to stream a mjpeg http stream into a h264 output. Summary of the bug: If ffmpeg is used to remux a mp4 h264 file to avi file. Based on the files I've inspected, I'd say they're using a maximum kf interval of 5 seconds. Here is an ffmpeg command, AS ASKED FOR, which will convert mp4 to Divx. Setting keyframes based on scene changes is still the best thing for compression efficiency, at least for non-live. Anything other than that would require storing the desired location of keyframes and telling the encoder to use those for every resolution version you're encoding. There are only very few exceptions to this (like JPEG > JPEG-XL). It doesnt matter if you do H265 > H264, H264 > H264, or GIF > H264, you re-encode the raw pixels anyway. with x264 you can just construct an FFmpeg command with no-scenecut, set the keyint based on the fps, and you're done. When you encode a lossy h264 video, you will lose quality, and, most importantly: It is completely irrelevant what your input format is. but get the following back: command not found. Are there any ffmpeg flags I need to set to achieve this, or is it something inherently wrong with Chromium Note: if I re-encode the file with ffmpeg -i file. I have tried the following in Terminal: ffmpeg -i test.mp4 -c:v libx264 test.h264.

There's no need to programmatically interface with the encoder, e.g. I am completely new to FFmpeg and am trying to convert my test.mp4 to (it has to be specifically) a. About Contributors Linux.Just to add to this, a keyframe every X seconds is probably the standard because it's the most simple to implement.

Ffmpeg mp4 to h264