youtube html5 video renders strange on PowerPC




7 years ago
6 years ago


(Reporter: Marcus Meissner, Unassigned)


Firefox Tracking Flags

(Not tracked)




(1 attachment)



7 years ago
User-Agent:       Mozilla/5.0 (X11; Linux ppc64; rv:2.0b10) Gecko/20110121 Firefox/4.0b10
Build Identifier: Firefox 4.0b10

When enabling the youtube html5 video player on a openSUSE PowerPC
Firefox 4.0b10 build, the video is distorted. It plays, sounds is fine, just the displayed video is incorrect.

Reproducible: Always

Steps to Reproduce:
1. enable html5 video on youtube
2. play a youtube video
Actual Results:  
video looks badly displayed

Expected Results:  
video displays correctly.

Comment 1

7 years ago
Created attachment 523563 [details]
screenshot of youtube videoplayer
Ever confirmed: true
This doesn't seem to be a problem with Firefox 4 final (thouh I'm on intel, not ppc).

Is Firefox 4 final available from wherever you got your b10 build from?

Comment 3

7 years ago
i updated to firefox 4.0 today, same effect still.

any idea how to debug this?
Karl, Matthew, any ideas?  I wonder whether this is a PPC issue in the webm code...
Marcus, do you see similar problems if you play an Ogg Theora video instead?  That'll help narrow down where the bug is.  I suspect it's in the gfx/ycbcr code, which is shared between all of the video decoders, so if I'm right I'd expect Theora playback to exhibit the same bug.

Sample Ogg file:
Out of band discussion suggested this might be bug 640588, which is fixed in the trunk nightly builds.  Can you please test a nightly and report the results?

Comment 7

7 years ago
xine u6sdgeu4t8gq.ogg  is ok and shows the testvideo.

firefox u6sdgeu4t8gq.ogg    shows the video distorted like above.

I will see if I can get a nightly build up, the bug 640588 looks like the same distortion, although I am running a 32bit visual
(bitmap unit, bit order, padding:    32, MSBFirst, 32)
Have you had a chance to test a nightly build?

Comment 9

6 years ago
I tried Wolfgangs provided 5.0a-20110427
but it does not build on powerpc 32bit anymore.

--disable-ipc  no longer seems to work, and I run into ppc related errors during build.

any specific magic to build for Power?
--disable-ipc was removed in bug 639754 :-(
I'm looking into finishing bug 587188

Comment 12

6 years ago
i tested wolfgangs build now, and youtube html5 videos render fine.

So this is fixed I think.
Great, thanks for confirming.
Last Resolved: 6 years ago
Resolution: --- → FIXED
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