BasharOfTheAges wrote:You can compare quality-loss in a non-subjective way though. It involves coming up with a method to create a difference matte between the encoded and uncompressed files, compute a total value (or values) of difference in RGB or HLS of each pixel for each frame, then compute the % variance across each metric for each frame and for the video as a whole as a data set. Compute the variance by obtaining the integral of the absolute value of divergence from zero of the previous set. The encode with lowest variance would probably be the best. You'd need to test vs observational results to determine the threshold of it mattering.
kholaras wrote:Dumb question, but do any of the players have an internal profiler to track the time to decode individual frames, either individually or as an average?
mirkosp wrote:Quality can only be compared when you keep bitrate low, really. Once you start to have a high bitrate, any codec should be able to have a good ouput, and so even at same bitrate, if it is high enough, all encodes will be looking roughly the same, really. Rather than worrying about quality, you should just worry about playback speed I think. The easier it is, the better, since filesize isn't an issue for you. If you tried doing a ' --tune fastdecode, zerolatency ' encode at crf 16 you could be getting some insanely fast decoding speed...
Zarxrax wrote:You have an option to still use it:
Figure out the maximum bitrate it can handle without dropping frames, and make that the maximum bitrate that people can encode at.
Quu wrote:Zarxrax wrote:You have an option to still use it:
Figure out the maximum bitrate it can handle without dropping frames, and make that the maximum bitrate that people can encode at.
my problem with that "solution" is that mpc-hc and corevlc under windows... works fine AND
xbmc under linux on the exact same hardware plays the files fine... so I basically know I am doing something wrong
IE i know it is my fault, so am plugging away
Users browsing this forum: No registered users and 0 guests