This is working for me Andrew. In your html head add this small piece of js: var video = document.getElementById(‘video’); video.addEventListener(‘click’,function(){ video.play(); },false); Or, just add an onlick attribute directly to your html element: <video src=”https://stackoverflow.com/questions/5278262/your_video” width=”250″ height=”50″ poster=”your_image” onclick=”this.play();”/>
In a quite interesting document called H.264 Primer, a simple formula is given as an hint to compute the `ideal’ output file bitrate, based on the video’s characteristics: [image width] x [image height] x [framerate] x [motion rank] x 0.07 = [desired bitrate] where the image width and height is expressed in pixels, and the … Read more
This may not be the answer to your problem but it was to mine: http://mediainfo.sourceforge.net/ (It has a library and it’s open source so you can just check for the part(s) you need)
Yes, if you already have the vlc-sdk.7z (libVLC for android), here is the sample project to embedded VLC into your android apps. If you do not have libVLC, here are the steps to build one. (After “sh compile.sh” finished, “make vlc-sdk.7z” to create the vlc-sdk.7z and unzip to the demo project. I put the vlc-sdk.7z(only … Read more
Comparison of decoded data with MD5 hash You can use the FFmpeg MD5 muxer to show that the decoding results in the exact same output: Get MD5 hash of the video stream from your original input: $ ffmpeg -loglevel error -i original.vid -map 0:v -f md5 – MD5=5ee3ae1ee5feaf30618938290225f682 Convert to a lossless output: $ ffmpeg … Read more
You can use -r option to limit the speed. For example youtube-dl -r 20K www.someurl.com This will limit the speed to 20K. Note that speed is specified in bytes per second.
The select filter is better for this. ffmpeg -i video \ -vf “select=”between(t,4,6.5)+between(t,17,26)+between(t,74,91)”, setpts=N/FRAME_RATE/TB” \ -af “aselect=”between(t,4,6.5)+between(t,17,26)+between(t,74,91)”, asetpts=N/SR/TB” out.mp4 select and its counterpart filter is applied to the video and audio respectively. Segments selected are times 4 to 6.5 seconds, 17 to 26 seconds and finally 74 to 91 seconds. The timestamps are made continuous … Read more
Safari requires webserver to support “Range” request header in order to play your media content. https://developer.apple.com/library/safari/documentation/AppleApplications/Reference/SafariWebContent/CreatingVideoforSafarioniPhone/CreatingVideoforSafarioniPhone.html#//apple_ref/doc/uid/TP40006514-SW6 For a legit “Range” request response, your webserve need to return status code “206”.
OpenCV Solution According to this source, you can set the buffersize of a cv::VideoCapture object. cv::VideoCapture cap; cap.set(CV_CAP_PROP_BUFFERSIZE, 3); // internal buffer will now store only 3 frames // rest of your code… There is an important limitation however: CV_CAP_PROP_BUFFERSIZE Amount of frames stored in internal buffer memory (note: only supported by DC1394 v 2.x … Read more