OpenCV real time streaming video capture is slow. How to drop frames or get synced with real time?

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

Post processing in ffmpeg to move ‘moov atom’ in MP4 files (qt-faststart)

Seems like faststart support has been included in ffmpeg. FFmpeg Formats Documentation: -movflags faststart Run a second pass moving the moov atom on top of the file. This operation can take a while, and will not work in various situations such as fragmented output, thus it is not enabled by default.

AVPlayer seekToTime does not play at correct position

int32_t timeScale = self.player.currentItem.asset.duration.timescale; CMTime time = CMTimeMakeWithSeconds(77.000000, timeScale); [self.player seekToTime:time toleranceBefore:kCMTimeZero toleranceAfter:kCMTimeZero]; I had a problem with ‘seekToTime’. I solved my problem with this code. ‘timescale’ is trick for this problem. Swift version: let playerTimescale = self.player.currentItem?.asset.duration.timescale ?? 1 let time = CMTime(seconds: 77.000000, preferredTimescale: playerTimescale) self.player.seek(to: time, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero) { (finished) … Read more

How to Implement HTTP byte-range requests in Spring MVC

The request for support for http byte-range was open at the time of this answer but is fixed in Spring 4.2.RC1. Check jira SPR-10805 or, the PR here. But based on the code that you linked in your question, Davin Kevin built a solution that could work for your request. Code for MultipartFileSender: import org.apache.commons.lang3.StringUtils; … Read more

HTML5 Video Autoplay not working correctly

Chrome does not allow autoplay if the video is not muted. Try using this: <video width=”440px” loop=”true” autoplay=”autoplay” controls muted> <source src=”http://www.tuscorlloyds.com/CorporateVideo.mp4″ type=”video/mp4″ /> <source src=”http://www.tuscorlloyds.com/CorporateVideo.ogv” type=”video/ogv” /> <source src=”http://www.tuscorlloyds.com/CorporateVideo.webm” type=”video/webm” /> </video>

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