Claude.Rivet Posted March 26, 2015 Report Share Posted March 26, 2015 Hello fellow watchout programmers! Disregard my previous post with same title I inadvertently sent it and it was not finished I started learning ffmpeg and now I have a few questions regarding encoding and how Watchout uses various options. 1- encoding for multiple thread (x264lib flag ans other codecs also): basically encode in a way that when the file is read it is decoded by as many core as there are specified thread. So encoding for 8 thread would make sure my 8 cores are used when reading the file. I noticed Watchout very rarely use 8 core on my system, 4 is common and most often it's two. even when reading 24HD files concurently. Would encoding for 8 threads solve that? What would be the effects: -If I play back a 40Mbps file will it basically be the equivalent as far as load time and fluidity and possible concurent files as playing a 5Mbps file encoded for 1 thread? -Does Watchout support multiple thread decoding? -lets pretend my file is encoded for 8 thread and I read it on a system that has 2 cores and no hyperthread, will the file read? Will it be the equivalent of playing back the same file but encoded for one thread or will it be more demanding for the system? 2- As far as watchout goes I once was told mpeg2 was the holy grail of Watchout format as it was very easy to read and of high quality. In my experience it is true, I can play more mpeg2 files than mpeg4 files and quality-wise it fits my needs quite well. However this was a few years ago, how about now? Still the prefered format? Since I have access to ffmpeg and can now turn on or off pretty much any flag is there some settings you guys know are optimal? 3- I need to encode files in 1920x1200, it is not an ideal resolution and even though I am sure it will encode in mpeg4 I doubt it will without issues in mpeg2. I will need to play at least 8 concurent files at that resolution and it needs to be very fluid, no stutter or hiccups. A possible solution would be to encode the file in anamorphic 16:9 and strecth it back to 16:10 in Watchout but if I could avoid that it would be awesome. I need the file to play back near instantly so heavy codecs like photo jpeg or animation and to be avoided. Keep in mind I can play 12 HD files in mpeg2 and mix them in 12 other HD files encoded in mpeg2 with no issue on my system for as long as there is no live input on screen, 40Mbps files. Sorry for the long post but I need to access our collective minds on these issues thanks for the help regards For reference, my system: Windows7, heavilly customized and stripped-down, basically Watchout only system 8core i7 16GB Ram V9100 Firepros VisionRGB SDIpro2 M.2 XP941 SSD drive Quote Link to comment Share on other sites More sharing options...
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