Closed Captioning in MPEG & TS files

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Closed Captioning in MPEG & TS files

Post by Simon88 on Thu Jun 26, 2014 5:21 am

Hi there,

I really like K-Lite Mega, and the other day, I tried to play a TS file which contains EIA-608/708 North America closed captioning and can't get it to display.  The Subtitle menu item is greyed out.  I was able to play it using latest VLC Player.  Do you have the necessary filters to decode Closed Captioning data? Is there a setting I must configure?  Here's a MediaInfo of a sample TS file I captured using a Huappauge 2250 card.

Code:
General
ID                                       : 1 (0x1)
Complete name                            : C:\TV\3.2___ME_TV_20140625_1100.ts
Format                                   : MPEG-TS
File size                                : 54.1 MiB
Duration                                 : 1mn 39s
Start time                               : UTC 2014-06-25 17:59:48
End time                                 : UTC 2014-06-25 18:01:26
Overall bit rate mode                    : Variable
Overall bit rate                         : 4 539 Kbps

Video
ID                                       : 65 (0x41)
Menu ID                                  : 2 (0x2)
Format                                   : MPEG Video
Format version                           : Version 2
Format profile                           : Main@Main
Format settings, BVOP                    : Yes
Format settings, Matrix                  : Custom
Format settings, GOP                     : Variable
Codec ID                                 : 2
Duration                                 : 1mn 38s
Bit rate mode                            : Variable
Bit rate                                 : 3 927 Kbps
Maximum bit rate                         : 15.0 Mbps
Width                                    : 704 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 4:3
Frame rate                               : 29.970 fps
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.388
Stream size                              : 46.3 MiB (86%)

Audio
ID                                       : 68 (0x44)
Menu ID                                  : 2 (0x2)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : 129
Duration                                 : 1mn 39s
Bit rate mode                            : Constant
Bit rate                                 : 384 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Delay relative to video                  : -196ms
Stream size                              : 4.56 MiB (8%)
Language                                 : English

Text #1
ID                                       : 65 (0x41)-CC1
Menu ID                                  : 2 (0x2)
Format                                   : EIA-608
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 1mn 38s
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)

Text #2
ID                                       : 65 (0x41)-1
Menu ID                                  : 2 (0x2)
Format                                   : EIA-708
Muxing mode                              : A/53 / DTVCC Transport
Muxing mode, more info                   : Muxed in Video #1
Duration                                 : 1mn 38s
Bit rate mode                            : Constant
Stream size                              : 0.00 Byte (0%)


Thanks...

Simon88

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Re: Closed Captioning in MPEG & TS files

Post by Admin on Thu Jun 26, 2014 9:36 am

Such subtitles are embedded in the video data. The video decoder must support extraction of this data. The LAV Video decoder does not support it. You could try enabling MPEG-2 in ffdshow. Or perhaps even use the Microsoft DTV-DVD Video decoder.

Can you provide a sample file? Then I can do these tests and maybe find a solution.
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Re: Closed Captioning in MPEG & TS files

Post by Simon88 on Thu Jun 26, 2014 12:22 pm

A short Closed-Captions .TS file captured using latest WinTV is at:

sendspace.com loujcq

It plays fine using VLC 2.1.4 (64-bit)...

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Re: Closed Captioning in MPEG & TS files

Post by Admin on Fri Jun 27, 2014 9:32 am

I have done some tests and I wasn't able to get the closed captions to display in any DirectShow players. You will have to continue to use VLC for these type of files.

Is WinTV able to display the subs? If so, using the filters from WinTV in MPC-HC might be a solution.

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Re: Closed Captioning in MPEG & TS files

Post by Simon88 on Fri Jun 27, 2014 10:52 am

Yes, WinTV also plays the closed captioned *.TS files, PERFECTLY... even more accurate than VLC...

Do you have the instructions to integrate WinTV's closed captioning filters into K-Lite Mega?

Thanks...

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Re: Closed Captioning in MPEG & TS files

Post by Admin on Sat Jun 28, 2014 3:42 am

Generate a list of all installed DirectShow filters:
Codec Tweak Tool > Generate Log

Check if that list contains any filters from WinTV or Hauppauge.

You can set a filter as preferred in MPC-HC:
options > external filters

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Re: Closed Captioning in MPEG & TS files

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