[mythtv-users] subtitles size

[faginbagin]

On 8/29/2016 4:19 AM, Marius Schrecker wrote:
>
> On Saturday, August 27, 2016 19:28 CEST, faginbagin <mythtv at hbuus.com>
> wrote:
>
>> On 8/26/2016 1:30 PM, Marius Schrecker wrote:
>> > Hi,
>> >
>> > After upgrading to 0.28 I have lost my subtitle settings.
>> >
>> > Editing osd_subtitle.xml for the current theme makes no difference. I
>> > also tried changing the zoom level in the playback menu up to about 150%
>> > with no noticable difference.
>> > Most of my subs are muxed from .srt's into matroska files, together
>> > with the video/audio tracks and Mythtv playback picks them up fine and
>> > displays them. The only problem is the size, which is too small.
>> >
>> > I also had some box shading setings in my osd_subtitle.xml files, which
>> > are also not being respected.
>> >
>> > I'm running mythfrontend with -v gui and get the followimng output when
>> > operating the onscreen playback menu and selecting the subtitle:
>> >
>> > 6-08-26 18:37:06.173113 W ALSA: Try to manually increase audio buffer
>> > with: echo 128 | sudo tee /proc/asound/card1/pcm7p/sub0/prealloc
>> > 2016-08-26 18:37:06.416390 E ALSA: no playback control PCM found on
>> > mixer device default
>> > 2016-08-26 18:37:06.416401 E ALSA: Unable to open audio mixer. Volume
>> > control disabled
>> > 2016-08-26 18:37:07.029918 I Clearing OpenGL painter cache.
>> > 2016-08-26 18:37:07.033219 I Using 1920x1080 50.000 Hz
>> > 2016-08-26 18:37:07.091901 I VDPAU: Created 2 output surfaces.
>> > 2016-08-26 18:37:07.091922 I VDPAU: Created VDPAU render device
>> 1920x1080
>> > 2016-08-26 18:37:07.095605 I MythPainter cache sizes: Hardware 64 MB,
>> > Software 48 MB
>> > 2016-08-26 18:37:07.102502 N Player(0): Forcing decode extra audio
>> > option on (Video method requires it).
>> > 2016-08-26 18:37:07.104215 I XMLParseBase: Loading window osd_message
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.108702 I XMLParseBase: Loading window osd_input
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.111698 I XMLParseBase: Loading window program_info
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.145715 I XMLParseBase: Loading window browse_info
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.154049 I XMLParseBase: Loading window osd_status
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.156922 I XMLParseBase: Loading window
>> > osd_program_editor from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.159730 I XMLParseBase: Loading window osd_debug
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:07.161560 I XMLParseBase: Loading window osd_debug
>> > from /usr/share/mythtv/themes/default-wide/osd.xml
>> > 2016-08-26 18:37:07.182559 E Player(0): Video sync method can't support
>> > double framerate (refresh rate too low for 2x deint)
>> > 2016-08-26 18:37:07.183949 I Player(0): Video timing method: USleep
>> > with busy wait
>> > 2016-08-26 18:37:07.184414 I TV::StartPlayer(): Created player.
>> > 2016-08-26 18:37:07.184457 I TV::HandleStateChange(): Changing from
>> > None to WatchingVideo
>> > 2016-08-26 18:37:07.187009 I TV::HandleStateChange(): Main UI disabled.
>> > 2016-08-26 18:37:07.187150 I TV::StartTV(): Entering main playback loop.
>> > 2016-08-26 18:37:07.188055 I ScreenSaverDBus: Successfully inhibited
>> > screensaver via org.freedesktop.ScreenSaver. cookie 1. nom nom
>> > 2016-08-26 18:37:07.210190 I VDPAU: Added 2 output surfaces (total 4,
>> > max 4)
>> > 2016-08-26 18:37:12.457726 I XMLParseBase: Loading window MythPopupBox
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:37:12.461936 N Container '' is missing child 'title' at
>> > 2016-08-26 18:38:23.034526 I XMLParseBase: Loading window MythPopupBox
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:38:23.039257 N Container '' is missing child 'title' at
>> > 2016-08-26 18:38:44.195159 I XMLParseBase: Loading window MythPopupBox
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:38:44.199427 N Container '' is missing child 'title' at
>> > 2016-08-26 18:39:08.699294 I XMLParseBase: Loading window MythPopupBox
>> > from /usr/share/mythtv/themes/MythCenter-wide/osd.xml
>> > 2016-08-26 18:39:08.703598 N Container '' is missing child 'title' at
>> >
>> > Has something changed in 0.28 or am I missing something?
>> >
>> > BR.
>> >
>> > --Marius--
>>
>> I think it is tied to this ticket:
>> https://code.mythtv.org/trac/ticket/9294
>> It looks like the changes went into 0.25, although they depend on
>> whether an external library of the appropriate version was installed
>> when the mythtv binaries were built.
>>
>> What version did you upgrade from?
>>
>> I can tell you that when I play matroska files with muxed in srt
>> subtitles in 0.27, that external library IS rendering the subtitles. But
>> I've also got some matroska files with external srt files. When I play
>> those, mythtv code is doing the rendering. In this case, both
>> osd_subtitle.xml and subtitle zooming work as expected. I'm 90% sure if
>> you extract the muxed in subtitles into an external .srt file, your
>> osd_subtitle.xml file will be used and subtitle zooming will work.
>>
>> Regards,
>> Helen
>
> Hello Helen and thank you very much for your reply.
>
>    It's a while since I upgradede. I just haven't had much time to play
> with MythTV since, especially as there are other problems that spoil the
> viewing experience (the reftesh rate isn't changing to match frame
> rate). As far as I remember it was from version .22, so quite a big jump.
>
> I'm currently using the packaged Mythbuntu 16.04 version, so guessing
> that was built with the necessary deps.
>
> I couldn't se from the link how we interact with the library to affect
> font size. Is it set automatically, (based on screen size perhaps??) or
> are there other tricks that could be applied?
>
>  BR.
>
> --Marius--

I looked at the code a couple of years ago, and was thinking about 
tinkering with it because I, too, wanted my custom osd_subtitle.xml 
configuration to be used. As I recall, the font and attributes are hard 
coded (size is a function of screen size). But I never got around to 
tinkering. I have submitted some patches to improve appearance of closed 
captions and srt subtitles in this ticket:
https://code.mythtv.org/trac/ticket/12057
but it hasn't been reviewed in over a year. Kind of demotivating.

Regards,
Helen