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Old 12th January 2018, 11:38   #5821  |  Link
froggy1
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Quote:
Originally Posted by psyside View Post
I'm a noob, i couldnt find any other thread to ask.

Alsoi have downloaded video from youtube, which in the media info states VP9/HEVC?
if you haven't found a thread, start a new one! it's that simple
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Old 12th January 2018, 18:54   #5822  |  Link
benwaggoner
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Originally Posted by x265_Project View Post
Yes, if someone was seeking to (starting playback from) the IDR frame, any RADL B frames (which come after the IDR frame in decoding order) would be dropped, as they represent frames that come before the IDR frame in presentation order.

The term "current GOP" can be a bit confusing when we're talking about leading pictures. RADL B pictures require the IDR picture (the first frame of the next GOP) as a reference. But the decoder knows this already, as the NAL unit type of the IDR picture will indicate that leading pictures (from the previous GOP) follow the IDR picture in decode order (it will be an IDR_W_RADL as opposed to an IDR_N_LP - IDR with no leading pictures).
Is there a recommendation on using RADL? Is it something that can be safely used in all fixed-GOP encodes to potentially increase quality?

From the description, it sounds like the fundamental technology could also be used in variable duration Closed GOP as well.
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Old 13th January 2018, 15:00   #5823  |  Link
Ma
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Originally Posted by fisherwei View Post
from 2.6(+22 and +24), it seems some problem in my computer.
[...]
2.6+17 was OK.
2.6+22/+24 was wrong.
In commit a3334a2 (ver. 2.6+19) there are 2 new options: "analysis-load" and "analysis-save". In function x265_param2string all options are written to a memory buffer in text form (readable), the buffer size was only 2000 bytes, with example that hangs in my system it was 2028 bytes to write.

The bug is critical (even if it not hangs it writes to unknown memory) so we should fix this -- you can try patch 19377 and report back if it helps.

I've prepared binaries with this patch (and patches 19378, 19379 which are not so important): x265p-2.6+27-2f3c415_vs2015.7z
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Old 14th January 2018, 10:18   #5824  |  Link
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Can anyone explain the situation where --rd-refine could be useful? I.e. is it meant to battle against some specific issue?
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Old 14th January 2018, 13:38   #5825  |  Link
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Originally Posted by Boulder View Post
Can anyone explain the situation where --rd-refine could be useful? I.e. is it meant to battle against some specific issue?
I found when used it seems to improve the picture quality, sujectively of course. I think it may affect detailed low light scenes more so than other situations. Admittedly I haven't tried it on and off for a while, other changes may negate its benefits.
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Old 14th January 2018, 22:35   #5826  |  Link
Dclose
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Since when does x265 have a sub-CTU quantization group setting of 8 (instead of minimum 16) available? That's new, isn't it? Maybe it's been there a while and I'm just not remembering.
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Old Today, 02:28   #5827  |  Link
fisherwei
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Quote:
Originally Posted by Ma View Post
In commit a3334a2 (ver. 2.6+19) there are 2 new options: "analysis-load" and "analysis-save". In function x265_param2string all options are written to a memory buffer in text form (readable), the buffer size was only 2000 bytes, with example that hangs in my system it was 2028 bytes to write.

The bug is critical (even if it not hangs it writes to unknown memory) so we should fix this -- you can try patch 19377 and report back if it helps.

I've prepared binaries with this patch (and patches 19378, 19379 which are not so important): x265p-2.6+27-2f3c415_vs2015.7z
It works for me. Thanks in advance.
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Old Today, 16:24   #5828  |  Link
LigH
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x265_2.6+31-3712d13c09bf
  • important stability fix when using very verbose parameters like zones and additional files (could exceed a too small internal buffer)
  • input: change from ifstream to stdio stream
  • change date to 2018 in output file header
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Old Today, 18:41   #5829  |  Link
x265_Project
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Hi everyone.
I've been the head of the x265 project and the head of MulticoreWare's video business from the start. But I need to let you know that I've decided to move on, joining Beamr as VP Strategy. x265 has a strong team, and it's in good hands. I'll hand this Doom9 account over to someone on the MulticoreWare team.

Tom
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Old Today, 18:44   #5830  |  Link
Selur
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Sad to hear you leave the x265 project, but wish you good luck&co at Beamr.
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