[MPlayer-users] recent libass text rotation corruption

[Robert Henney]

On Wed, Dec 19, 2012 at 01:42:55PM +0100, Erik Auerswald wrote:

> Between svn revisions 35319 and 35698 a rewrite of vf_ass has
> happened as well, which might be the cause for your regression:

thanks.  with that in mind, I've been able to narrow it down to a 
single commit.

> $ svn log -r35319:35698 libmpcodecs/vf_ass.c
> ------------------------------------------------------------------------
> r35338 | upsuper | 2012-11-02 06:42:48 +0100 (Fri, 02 Nov 2012) | 5 lines
> 
> a new implementation of vf_ass

this is the commit that introduces the color plane separation bug on
my system.  r35337 does not exhibit the bug on my system, while r35338
does.

> Anyway, I'd assume that you need to provide more information about
> your setup, e.g. complete console output of "mplayer -v YOUR_OPTIONS
> YOUR_FILE" when this problem occurs. This would show hardware info,
> video filters, video output used, error messages, and much more.

I've gathered the relevant files, including mplayer's -v output, and
placed them up at http://rut.org/mplayer/

(the file.mkv isn't needed to reproduce the bug, and it's quicker to 
download the subtitles.ass file that I've extracted from it and play 
it against any video file of sufficient length.  I've included the 
file.mkv there anyhow.)

to reproduce the bug I use "-noconfig all -vo xv -ass -ss 730", and 
the text corruption will appear at 740 seconds.  I did notice that
when using "-vo vdpau" the corruption won't appear, though it does
appear when using "-vo x11" as well so it doesn't appear specific to
"-vo xv".
-------------- next part --------------
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 16
model		: 6
model name	: AMD Athlon(tm) II X2 4450e Processor
stepping	: 3
microcode	: 0x10000c8
cpu MHz		: 800.000
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips	: 5600.49
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 16
model		: 6
model name	: AMD Athlon(tm) II X2 4450e Processor
stepping	: 3
microcode	: 0x10000c8
cpu MHz		: 800.000
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save
bogomips	: 5600.22
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate