You can use jcodec SequenceEncoder to convert sequence of images to MP4 file. Sample code : import org.jcodec.api.awt.SequenceEncoder; … SequenceEncoder enc = new SequenceEncoder(new File(“filename”)); // GOP size will be supported in 0.2 // enc.getEncoder().setKeyInterval(25); for(…) { BufferedImage image = … // Obtain an image to encode enc.encodeImage(image); } enc.finish(); It’s a java library so … Read more
I had the same problem and I solved it by specifying the video output resolution to exactly the same as input: cap = cv2.VideoCapture(‘vtest.avi’) … out = cv2.VideoWriter(‘output.avi’,fourcc, 20.0,(int(cap.get(3)),int(cap.get(4)))) Of course make sure you got ffmpeg installed and working.
Good graph from this 2011 article: This is a tough call, but honestly, WebM is probably going to win out in the end considering it’s Google’s project. Ogg will most likely stay what it is now in its audio counterpart– an open standard that is not widely-adopted even though it’s superior in some ways. H.264 … Read more
The issue is not solely browser dependent but render dependent. As soon as the browser renders the video with hardware acceleration the GPU preferences affect the color. For instance, if you are using an Nvidia graphics card, you can change the color preferences in the Nvidia Control Panel. Desktop monitors usually use the full RGB … Read more
My hypothesis is that the jitter is most likely due to network limitations and occurs when a frame packet is dropped. When a frame is dropped, this causes the program to display the last “good” frame which results in the display freezing. This is probably a hardware or bandwidth issue but we can alleviate some … Read more
First, let’s unwind your question. As you’ve surmised, RTMP isn’t currently supported by Android. You can use a few side libraries to add support, but these may not be full implementations or have other undesirable side effects and bugs that cause them to fail to meet your needs. The common alternative in this case is … Read more
Sure, You can set the src attribute on the source element: document.querySelector(“#myVideoTag > source”).src = “http://example.com/new_url.mp4” Or using jQuery instead of standard DOM methods: $(“#myVideoTag > source”).attr(“src”, “http://example.com/new_url.mp4″) Then you need to call the load method on the video element: videoElement.load()
After a lot of searching, I found the solution that worked for me back to IE8. Have not tested in IE7. How can I display an image if browser does not support HTML5’s <video> tag The above post, shows a method that seems to work for me. Here is the output based on my above … Read more
You can get a reference to your jquery video element upon opening it (or closing the popup) and pause it using pause(), and then set the “currentTime” property to 0 to go back to the beginning. Here’s a reference to the documentation for currentTime. here’s a code sample: var mediaElement = document.getElementById(“video”); mediaElement.pause(); mediaElement.currentTime = … Read more
MediaElement YouTube API example Wraps the YouTube API in an HTML5 Media API wrapper, so that it can be programmed against as if it was true HTML5 <video>. <script src=”jquery.js”></script> <script src=”mediaelement-and-player.min.js”></script> <link rel=”stylesheet” href=”mediaelementplayer.css” /> <video width=”640″ height=”360″ id=”player1″ preload=”none”> <source type=”video/youtube” src=”http://www.youtube.com/watch?v=nOEw9iiopwI” /> </video> <script> var player = new MediaElementPlayer(‘#player1’); </script>