If the JPEG encoding step is too performance intensive, you could always store the frames uncompressed as BMP images: ffmpeg -i file.mpg -r 1/1 $filename%03d.bmp This also has the advantage of not incurring more quality loss through quantization by transcoding to JPEG. (PNG is also lossless but tends to take much longer than JPEG to … Read more
Well it’s all about time. FFMpeg uses in fact three different timestamps in different bases in order to work. tbn = the time base in AVStream that has come from the container tbc = the time base in AVCodecContext for the codec used for a particular stream tbr = tbr is guessed from the video … Read more
According to this site, this is supported in the playbackRate and defaultPlaybackRate attributes, accessible via the DOM. Example: /* play video twice as fast */ document.querySelector(‘video’).defaultPlaybackRate = 2.0; document.querySelector(‘video’).play(); /* now play three times as fast just for the heck of it */ document.querySelector(‘video’).playbackRate = 3.0; The above works on Chrome 43+, Firefox 20+, IE … Read more
Replace audio ffmpeg -i video.mp4 -i audio.wav -map 0:v -map 1:a -c:v copy -shortest output.mp4 The -map option allows you to manually select streams / tracks. See FFmpeg Wiki: Map for more info. This example uses -c:v copy to stream copy (mux) the video. No re-encoding of the video occurs. Quality is preserved and the … Read more
You must ensure the URL contains embed rather watch as the /embed endpoint allows outside requests, whereas the /watch endpoint does not. <iframe width=”420″ height=”315″ src=”https://www.youtube.com/embed/A6XUVjK9W4o” frameborder=”0″ allowfullscreen></iframe>
To make the autoplay on html 5 elements work after the chrome 66 update you just need to add the muted property to the video element. So your current video HTML <video title=”Advertisement” webkit-playsinline=”true” playsinline=”true” style=”background-color: rgb(0, 0, 0); position: absolute; width: 640px; height: 360px;” src=”http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4″ autoplay=””></video> Just needs muted=”muted” <video title=”Advertisement” style=”background-color: rgb(0, 0, … Read more
GStreamer Editing Services freezes when transitions are added [closed]
I have hosted an open-source project to enable Android phone to IP camera: http://code.google.com/p/ipcamera-for-android Raw video data is fetched from LocalSocket, and the MDAT MOOV of MP4 was checked first before streaming. The live video is packed in FLV format, and can be played via Flash video player with a build in web server 🙂
I’d recommend not using images2gif from visvis because it has problems with PIL/Pillow and is not actively maintained (I should know, because I am the author). Instead, please use imageio, which was developed to solve this problem and more, and is intended to stay. Quick and dirty solution: import imageio images = [] for filename … Read more
It’s not possible to embed videos directly, but you can put an image which links to a YouTube video: [](https://www.youtube.com/watch?v=YOUTUBE_VIDEO_ID_HERE) For more information about Markdown look at this Markdown cheatsheet on GitHub. For more information about Youtube image links look this question.