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Closed captioning woes in 0.24?

 

 

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peloy at chapus

Nov 22, 2010, 12:26 AM

Post #1 of 6 (1033 views)
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Closed captioning woes in 0.24?

Hello,

Is anyone having closed captioning problems with 0.24? Closed captioning
has been working great for me but it is giving me problems after I
upgraded to 0.24. When playing back a recording the playback menu
sometimes does not even have a "Subtitles" submenu, and when it does,
turning on ATSC CC does not work (no captions are displayed). Also, my
recordings used to have both ATSC CC and VBI CC. Now most recordings
only seem to have ATSC CC, including old recordings that I am pretty
sure have both.

Playing recordings with VLC does give closed captions.

Could you share you experience with CC in 0.24?

Thanks!

Eloy Paris.-
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peloy at chapus

Nov 22, 2010, 7:23 PM

Post #2 of 6 (983 views)
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Re: Closed captioning woes in 0.24? [In reply to]

On Mon, Nov 22, 2010 at 03:26:24AM -0500, Eloy Paris wrote:

> Hello,
>
> Is anyone having closed captioning problems with 0.24? Closed captioning
> has been working great for me but it is giving me problems after I
> upgraded to 0.24. When playing back a recording the playback menu
> sometimes does not even have a "Subtitles" submenu, and when it does,
> turning on ATSC CC does not work (no captions are displayed). Also, my
> recordings used to have both ATSC CC and VBI CC. Now most recordings
> only seem to have ATSC CC, including old recordings that I am pretty
> sure have both.
>
> Playing recordings with VLC does give closed captions.
>
> Could you share you experience with CC in 0.24?

When running the frontend with -v vbi I see lots of these in the
frontend log:

2010-11-22 22:14:06.606 VBI: Unknown descriptor: 1
2010-11-22 22:14:06.607 VBI: Unknown descriptor: 153
2010-11-22 22:14:06.607 VBI: Unknown descriptor: 1
2010-11-22 22:14:06.608 VBI: Unknown descriptor: 153
2010-11-22 22:14:06.608 VBI: Unknown descriptor: 224
2010-11-22 22:14:06.608 VBI: Unknown descriptor: 153
2010-11-22 22:14:06.608 VBI: Unknown descriptor: 241
2010-11-22 22:14:06.763 VBI: Unknown descriptor: 153

I don't know if I had these before when CC was working since I just
enabled -v vbi to further troubleshoot this, but closed captions have
certainly worked for me until now.

I could swear that closed captions were working for me in some of the
0.24 releases that I have run and if that is the case, then they stopped
working after some 0.24-fixes upgrade that I did since nothing else in
the system has been upgraded.

Any ideas or suggestions?

Thanks in advance!

Eloy Paris.-
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mark.kendall at gmail

Nov 22, 2010, 7:35 PM

Post #3 of 6 (978 views)
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Re: Closed captioning woes in 0.24? [In reply to]

On 23 November 2010 11:23, Eloy Paris <peloy [at] chapus> wrote:
> On Mon, Nov 22, 2010 at 03:26:24AM -0500, Eloy Paris wrote:
>
>> Hello,
>>
>> Is anyone having closed captioning problems with 0.24? Closed captioning
>> has been working great for me but it is giving me problems after I
>> upgraded to 0.24. When playing back a recording the playback menu
>> sometimes does not even have a "Subtitles" submenu, and when it does,
>> turning on ATSC CC does not work (no captions are displayed). Also, my
>> recordings used to have both ATSC CC and VBI CC. Now most recordings
>> only seem to have ATSC CC, including old recordings that I am pretty
>> sure have both.
>>
>> Playing recordings with VLC does give closed captions.
>>
>> Could you share you experience with CC in 0.24?
>
> When running the frontend with -v vbi I see lots of these in the
> frontend log:
>
> 2010-11-22 22:14:06.606 VBI: Unknown descriptor: 1
> 2010-11-22 22:14:06.607 VBI: Unknown descriptor: 153
> 2010-11-22 22:14:06.607 VBI: Unknown descriptor: 1
> 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 153
> 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 224
> 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 153
> 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 241
> 2010-11-22 22:14:06.763 VBI: Unknown descriptor: 153
>
> I don't know if I had these before when CC was working since I just
> enabled -v vbi to further troubleshoot this, but closed captions have
> certainly worked for me until now.
>
> I could swear that closed captions were working for me in some of the
> 0.24 releases that I have run and if that is the case, then they stopped
> working after some 0.24-fixes upgrade that I did since nothing else in
> the system has been upgraded.
>
> Any ideas or suggestions?

Try posting the output of mythfrontend -v playback,vbi somewhere.

I've just checked some test clips here and there doesn't appear to be
a problem (trunk - but nothing should have changed since 0.24)

regards

Mark
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peloy at chapus

Nov 23, 2010, 10:08 AM

Post #4 of 6 (968 views)
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Re: Closed captioning woes in 0.24? [In reply to]

Hi Mark,

On Tue, Nov 23, 2010 at 11:35:22AM +0800, Mark Kendall wrote:

> On 23 November 2010 11:23, Eloy Paris <peloy [at] chapus> wrote:
>
> > On Mon, Nov 22, 2010 at 03:26:24AM -0500, Eloy Paris wrote:
> >
> >> Hello,
> >>
> >> Is anyone having closed captioning problems with 0.24? Closed
> >> captioning has been working great for me but it is giving me
> >> problems after I upgraded to 0.24. When playing back a recording
> >> the playback menu sometimes does not even have a "Subtitles"
> >> submenu, and when it does, turning on ATSC CC does not work (no
> >> captions are displayed). Also, my recordings used to have both
> >> ATSC CC and VBI CC. Now most recordings only seem to have ATSC CC,
> >> including old recordings that I am pretty sure have both.
> >>
> >> Playing recordings with VLC does give closed captions.
> >>
> >> Could you share you experience with CC in 0.24?
> >
> > When running the frontend with -v vbi I see lots of these in the
> > frontend log:
> >
> > 2010-11-22 22:14:06.606 VBI: Unknown descriptor: 1
> > 2010-11-22 22:14:06.607 VBI: Unknown descriptor: 153
> > 2010-11-22 22:14:06.607 VBI: Unknown descriptor: 1
> > 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 153
> > 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 224
> > 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 153
> > 2010-11-22 22:14:06.608 VBI: Unknown descriptor: 241
> > 2010-11-22 22:14:06.763 VBI: Unknown descriptor: 153
> >
> > I don't know if I had these before when CC was working since I just
> > enabled -v vbi to further troubleshoot this, but closed captions
> > have certainly worked for me until now.
> >
> > I could swear that closed captions were working for me in some of
> > the 0.24 releases that I have run and if that is the case, then
> > they stopped working after some 0.24-fixes upgrade that I did since
> > nothing else in the system has been upgraded.
> >
> > Any ideas or suggestions?
>
> Try posting the output of mythfrontend -v playback,vbi somewhere.

Sure thing; glad to:

1. http://chapus.net/tmp/house-with-vbi-cc.txt

When I playback this recording, the Playback menu -> Subtitles sub-menu
gives me the option to choose between VBI CC or ATSC subtitles. When I
played this recording back I turned on VBI CC, which is what I normally
use (or used, since it doesn't work anymore). The above file contains
the stderr output from mythfrontend with -v playback,vbi.

2. http://chapus.net/tmp/two-and-a-half-men-atsc-cc.txt

When I playback this recording, the Playback menu -> Subtitles sub-menu,
only shows the ATSC Subtittles option. When I played this recording back
I turned on ATSC subtitles. The above file contains the stderr output
from mythfrontend with -v playback,vbi.

3. http://chapus.net/tmp/good-wife-atsc-cc.txt

When I playback this recording, the Playback menu -> Subtitles sub-menu,
only shows the ATSC Subtittles option. When I played this recording back
I turned on ATSC subtitles. The above file contains the stderr output
from mythfrontend with -v playback,vbi.

(3) is basically the same as (2). However, I decided to also play (3)
since that recording was done when I was running 0.23-fixes, and I am
pretty sure I was able to have both VBI and ATSC CC back then.

Do you see anything suspicious in these logs?

> I've just checked some test clips here and there doesn't appear to be
> a problem (trunk - but nothing should have changed since 0.24)

Yes, it is pretty weird since I am pretty sure I had working Closed
Captioning in some 0.24 release that I ran. I haven't downgraded but
I think I'll give that a try just to see if it's some change that was
introduced in 0.24-fixes. I saw your commits 27220 and 27124 in the
0.24-fixes changelog but I cannot see how these would have broken
anything.

Thanks in advance for taking a look.

Cheers,

Eloy Paris.-
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mark.kendall at gmail

Nov 23, 2010, 3:56 PM

Post #5 of 6 (968 views)
Permalink
Re: Closed captioning woes in 0.24? [In reply to]

On 24 November 2010 02:08, Eloy Paris <peloy [at] chapus> wrote:
> Hi Mark,
>
> On Tue, Nov 23, 2010 at 11:35:22AM +0800, Mark Kendall wrote:
>> Try posting the output of mythfrontend -v playback,vbi somewhere.
>
> Sure thing; glad to:

I was going to ask all sorts of questions until I spotted one thing in
your logs:-

2010-11-23 10:35:01.536 MPEG2Dec: Using libmpeg2 for video decoding

What happens if you use standard ffmpeg?

regards

Mark
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peloy at chapus

Nov 23, 2010, 4:19 PM

Post #6 of 6 (964 views)
Permalink
Re: Closed captioning woes in 0.24? [In reply to]

Hi Mark,

On Wed, Nov 24, 2010 at 07:56:08AM +0800, Mark Kendall wrote:

> On 24 November 2010 02:08, Eloy Paris <peloy [at] chapus> wrote:
> > Hi Mark,
> >
> > On Tue, Nov 23, 2010 at 11:35:22AM +0800, Mark Kendall wrote:
> >> Try posting the output of mythfrontend -v playback,vbi somewhere.
> >
> > Sure thing; glad to:
>
> I was going to ask all sorts of questions until I spotted one thing in
> your logs:-
>
> 2010-11-23 10:35:01.536 MPEG2Dec: Using libmpeg2 for video decoding
>
> What happens if you use standard ffmpeg?

Hhmmm. No idea and I am still at work, but I'll give it a try as soon
as I get home. I don't even know how my configuration ended up using
libmpeg2 for video decoding.

I'll post here my findings.

Thanks again for taking the time to look into this.

Cheers,

Eloy Paris.-

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