Re: [Bino-list] SubTitles?

[Joe]

Hi,

On Monday 14 March 2011 06:18:07 Jack Metal wrote:
> SRT are the predominant type I see also.  Joe, You are my hero!  ;-)

Th real hero is Martin :-) He managed wrote the best 3D player with the most 
features I have ever seen on Linux/Mac/Windows.

> I guess I'll spend a little time this week to see if I can learn how to use
> git so I can watch a few of my movies that need subs (I've been compiling
> from source, but I'm not sure how to add a patch in)..  LOL

I've published the repository, so you can always download the fresh sources on 
https://github.com/cuchac/bino directly in targz form.

It would be great if you could do a bit of testing. But don't be surprised if 
you see hard to read subtitles. On my ATI card it is working well, on nvidia, 
text has color of video. But subtitles should be there and it should not be 
crashing, so if you experience missing subtitles or crashes, report it. 
Currently SRT should work well. To play movie with subtitles, just select both 
files in open dialog.

Joe

> On Sun, Mar 13, 2011 at 11:31 PM, Joe <address@hidden> wrote:
> > Hi everyone!
> > 
> > On Sunday 06 March 2011 09:21:05 Martin Lambers wrote:
> > > On 06/03/11 00:39, Joe wrote:
> > > > I was looking how to implement subtitles support and found
> > > > support for subtitles (.srt) decoding only in git version of
> > > > ffmpeg (srt decoding appears to be missing even in latest
> > > > gentoo unstable version 0.6_p25767). Am I missing something? Or
> > > > is it better to us some other subtitle decoding library? And
> > > > what about subtitles rendering library, don't you have some
> > > > hint?
> > > 
> > > I did not yet look into subtitles in detail, but I think we can
> > > stick to what FFmpeg provides. Version 0.6.1 seems to have support
> > > for subtitles, but I don't know about .srt files (what are those?
> > > where are they used?). FFplay apparently handles subtitless, and we
> > > could take a look how it is done there.
> > 
> > SRT subtitles are located in separate file and I think they are the most
> > common
> > subtitle format (at least in my area every subtitles are in srt format).
> > FFmpeg gained support for srt decoding on December 2010, so it is now
> > only in
> > git version.
> > 
> > > Some subtitle formats are stored in text form, while others are
> > > stored
> > > in a fixed bitmap form. I don't know how FFmpeg handles these two,
> > > but
> > > bitmaps could be put into a texture and overlayed onto the
> > > color-corrected video texture, and text could be rendered with an
> > > OpenGL font rendering library. I'd rather not use Qt's built-in
> > > text rendering for this, so that we can make subtitles work also
> > > with Equalizer. FTGL seems to be widely used:
> > > <http://sourceforge.net/apps/mediawiki/ftgl/index.php?title=Main_Pag
> > > e>.
> > 
> > Thanks for the tip! I used FTGL to implement basic subtitles support
> > ("--with-
> > ftgl" configure param). Please see the attached patch (it is one big
> > patch, but
> > I have finer grained history in my repository). So far I've implemented
> > support
> > for srt files and subtitles embedded in video files in form of plain
> > text
> > (tested on Matroska). Subtitles in image form will hopefully follow.
> > 
> > I draw directly into framebuffer, because I'm not so skilled in opengl
> > so I did
> > not managed to put text directly into left/right textures and also was
> > unable
> > to set proper color. I think it would be much better to have it in
> > textures to
> > be able to set "depth" of subtitles. It would be great if you find the
> > time to
> > correct it. (I think FTTextureFont or FTBufferFont will have to be
> > used).
> > Font
> > rendering starts at line 905 in video_output.cpp.
> > 
> > The patch is just RFC and I plan to clean it into mergeable state so
> > comment
> > please!
> > 
> > Bye,
> > Joe.