Ryan Barrett wrote up his findings on his blog. His solution involved using NTP as a method to keep all the clocks in-sync: Seriously, though, there’s only one trick to p4sync, and that is how it uses NTP. One host acts as the p4sync server. The other p4sync clients synchronize their system clocks to the … Read more
I’ve solved the issue, it just needs an sdp file like this: v=0 m=video 5000 RTP/AVP 96 c=IN IP4 127.0.0.1 a=rtpmap:96 MP4V-ES/90000 and the option “send-config=true” for the rtpmp4vpay element: gst-launch videotestsrc ! ffenc_mpeg4 ! rtpmp4vpay send-config=true ! udpsink host=127.0.0.1 port=5000 and then, it can be played with vlc <filename>.sdp
Assign to response_body an object that responds to #each: class Streamer def each 10_000_000.times do |i| yield “This is line #{i}\n” end end end self.response_body = Streamer.new If you are using 1.9.x or the Backports gem, you can write this more compactly using Enumerator.new: self.response_body = Enumerator.new do |y| 10_000_000.times do |i| y << “This … Read more
Intel has recently open sourced hyperscan library under BSD license. It’s a high-performance non-backtracking NFA-based regex engine. Features: ability to work on streams of input data and simultaneous multiple patterns matching. The last one differs from (pattern1|pattern2|…) approach, it actually matches patterns concurrently. It also utilizes Intel’s SIMD instructions sets like SSE4.2, AVX2 and BMI. … Read more
Just use Source.fromFile(…).getLines as you already stated. That returns an Iterator, which is already lazy (You’d use stream as a lazy collection where you wanted previously retrieved values to be memoized, so you can read them again) If you’re getting memory problems, then the problem will lie in what you’re doing after getLines. Any operation … Read more
Only setting the fetch size is not the correct approach. The javadoc of Statement#setFetchSize() already states the following: Gives the JDBC driver a hint as to the number of rows that should be fetched from the database The driver is actually free to apply or ignore the hint. Some drivers ignore it, some drivers apply … Read more
self.player.currentItem.asset.duration Got it!
This is a short guide for HLS streaming with any input file or stream: I am following user1390208’s approach, so I use FFMPEG only to produce the rtmp stream which my server then receives to provide HLS. Instead of Unreal/Wowza/Adobe, I use the free server nginx with the rtmp module, which is quite easy to … Read more
It does appear that it is buffering a fixed amount of data rather than a fixed amount of time. For anyone who doesn’t know the bitrates of various types of NPR streams off the top of their head, the data looks like: MPR news stream: 27 seconds (http://newsstream1.publicradio.org:80/), 64 kbps MPR classical music stream: 15 … Read more
AVPlayer can play from AVPlayerItem using AVURLAsset with an iPod library url. The AVAudioPlayer cannot play from an iPod library url. AVPlayer has no volume property and requires the use of the system volume setting which can be controlled only by the hardware switch or an MPVolumeView. But you can set the mix volume of … Read more