Tags » Codec

Vixen project #16

Project meeting this week was cancelled.

I have implemented video decoding and encoding in C/C++ using ffmpeg. I can now encode the sequence (~337MB) to a video file (~26.6MB), and then decode it back to the exactly same sequence, losslessly, using… 206 more words


CODEC's MediaLit Conference 2017

Can Artificially Intelligent Machines go to heaven? Can you take Eucharist on the internet? Is Facebook a good thing for our churches? These questions and many other issues and themes which arise from the increasingly digital world which overlaps onto and into our lives have been explored at the CODEC MediaLit conference this June 12-16 2017. 49 more words


si4463 FPV #2

In my last post I talked about using the si4463 chip to send video, telemetry and RC data to the quadcopter. I calculated the bandwidth and it seemed that 500kbps video with 5/7 FEC coding should be possible. 312 more words


An informal comparison of intermediate editing codecs for Windows platforms

Last year I volunteered to record an entire weekend’s worth of vintage computer talks. ¬†Unsurprisingly, this also involved editing an entire weekend’s worth of vintage computer talks. ¬† 1,217 more words

Digital Video

Review of the 2016 TMMI patents

I was asked to evaluate three patents that TMMI filed in 2016, specifically, patents US20160078601A1, WO2016186925A1, and WO2016040939A1.

They are worthless, and could justify the patent office rejecting them. 436 more words

Voice at 700 Bits Per Second

All other things being equal, signals with wider bandwidth can carry more information. Sometimes that information is data, but sometimes it is frequency. AM radio stations (traditionally) used about 30 kHz of bandwidth, while FM stations consume nearly 200 kHz. 289 more words

Radio Hacks

Safari Users Unable to Play Newer 4K Video on YouTube in Native Resolution

(Source: www.macrumors.com)

The issue was first raised almost a month ago by Reddit user

Other users soon chimed in to confirm the anomaly, noting that it only seemed to occur in recently uploaded 4K video and that accessing the same content in Chrome or Firefox still offered up the preferred 2160p resolution as a viewing option. 335 more words