jamaal81 / lavfilters

Automatically exported from code.google.com/p/lavfilters
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regression? many colorspace conversion paths broken for mainconcept h264 #437

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago
I'm sorry I don't have time to properly format this issue ticket.  I am about 
to leave and I figured it would be best to paste this here before I leave, 
since I may be gone for a while.  I should have just written all this stuff in 
a ticket initially, but I didn't.  Anyway, here's the text from #mpc-hc.  Also 
note that I am using lav filters 0.61.1, madvr 0.87.7, and MPC-HC 1.7.3.94 
(using external lav filters because the built-in one is 0.61.0).

01:13:11 <LexSfX> nevcairiel: this file shows a blank image for me when all 
colorspace outputs are disabled except RGB32 and RGB24 in lav video decoder, 
yet worked fine until very recently: 
http://v.somethingawful.com/flash/shmorky/laurenandjaylen2.mp4
01:13:44 <LexSfX> this and all the other flash tub mp4 files which use the 
mainconcept h264 encoder
01:14:47 <LexSfX> i am trying to try a different renderer, but mpc-hc won't 
listen to my choice.  i select "sync renderer" and it still uses madvr.  this 
is another issue
01:31:48 <LexSfX> nevcairiel: i went through the colorspace output options one 
by one and restarted playback each time to see which one still worked.  i went 
through YV24 (didn't work), then YUY2, and suddenly i could see an image.
01:32:45 <LexSfX> nevcairiel: i think some colorspace conversion paths must 
have broken in either lav video decoder or madvr recently (using latest 
released versions of both)
01:33:20 <LexSfX> nevcairiel: like i said though, i can't seem to switch 
renderers in mpc-hc and i don't know why
01:50:25 <LexSfX> nevcairiel: UYVY works instead of YUY2, also
01:54:32 <LexSfX> nevcairiel: ok, i have tested all the colorspace output 
settings one by one, and everything in the first 2 rows succeeds, and 
everything in the last 2 rows fails (black output from madvr)
01:55:06 <LexSfX> nevcairiel: note that this problem only happens with these 
flash tub videos, and not with many other h264 mp4 files i have

Original issue reported on code.google.com by lexlexlex@gmail.com on 14 Mar 2014 at 7:53

Attachments:

GoogleCodeExporter commented 9 years ago
The issue also happens with this video, which is also a Flash Tub video, but is 
not an mp4 or h264 video!  It has a FOURCC of VP6F.

http://www.somethingawful.com/flash/shmorky/netgoal.flv

Original comment by lexlexlex@gmail.com on 14 Mar 2014 at 8:08

GoogleCodeExporter commented 9 years ago
OH!  I figured out how to switch renderer.  I had madVR set as a preferred 
external filter, so that was overriding my renderer choice.  I switched to the 
Sync Renderer and now the video is not blank!

This must be a madVR regression then, and not a LAV Filters regression.  Feel 
free to close this ticket and/or forward it to madshi.

Original comment by lexlexlex@gmail.com on 14 Mar 2014 at 8:15

GoogleCodeExporter commented 9 years ago

Original comment by h.lepp...@gmail.com on 14 Mar 2014 at 8:32