Question on CC extraction options #151

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claunia · 2026-01-29T16:36:27Z

claunia commented

2026-01-29 16:36:27 +00:00

Originally created by @lelegard on GitHub (May 29, 2016).

Hello,

This is a question, not a bug report. Please let me know if there is a more appropriate place to fill that kind of request.

Following -out=report, an application (QtlMovie) collects the various CC streams and let a user select the one to burn in the video. According to the user's choice, a ccextractor command is generated to extract the SRT. I would like to confirm the extract options to use, depending on the selection.

My understanding is the following:

EIA-608: Yes/No
XDS: Yes/No ==> ?
CC1: Yes/No ==> Option: -1
CC2: Yes/No ==> Option: -2
CC3: Yes/No ==> Option: -cc2 -1
CC4: Yes/No ==> Option: -cc2 -2
CEA-708: Yes/No
Services: 1 ==> Option: -svc 1

Am I correct? Or what should I use?

Additional questions:

What is XDS?
What would be -out=report output in case of multiple CEA-708 streams ? "Services: 1,2" or two lines "Services: 1" and "Services: 2"?
May I suggest to make the "help" output of ccextractor a bit more clear on the CC numbering?

Thanks in advance for your help
Thierry

Originally created by @lelegard on GitHub (May 29, 2016). Hello, This is a question, not a bug report. Please let me know if there is a more appropriate place to fill that kind of request. Following `-out=report`, an application (QtlMovie) collects the various CC streams and let a user select the one to burn in the video. According to the user's choice, a ccextractor command is generated to extract the SRT. I would like to confirm the extract options to use, depending on the selection. My understanding is the following: `EIA-608: Yes/No` `XDS: Yes/No ==> ?` `CC1: Yes/No ==> Option: -1` `CC2: Yes/No ==> Option: -2` `CC3: Yes/No ==> Option: -cc2 -1` `CC4: Yes/No ==> Option: -cc2 -2` `CEA-708: Yes/No` `Services: 1 ==> Option: -svc 1` Am I correct? Or what should I use? Additional questions: - What is XDS? - What would be `-out=report` output in case of multiple CEA-708 streams ? "`Services: 1,2`" or two lines "`Services: 1`" and "`Services: 2`"? - May I suggest to make the "help" output of ccextractor a bit more clear on the CC numbering? Thanks in advance for your help Thierry

claunia closed this issue

2026-01-29 16:36:27 +00:00

claunia commented

2026-01-29 16:36:28 +00:00

@canihavesomecoffee commented on GitHub (May 29, 2016):

XDS provides information about the current running program (in CEA608), station etc. This information is only printed if enabled with the -xds parameter and if the output is transcript
CC1/CC3 don't need the -1 as that is set by default, but you can enter it anyway if you wish
-svc are the ones for CEA708 data;
From what I see from the source it will print Services: 1 2 500 in case there are multiple ones. The argument you need to pass to -svc in this case would be as follows: -svc 1,2,500 (or if you know more details (e.g. the character set), you can define the charset between brackets: -svc 1[EUC-KR],3

Hope this answers your questions :)

@canihavesomecoffee commented on GitHub (May 29, 2016): - [XDS](https://en.wikipedia.org/wiki/Extended_Data_Services) provides information about the current running program (in CEA608), station etc. This information is only printed if enabled with the `-xds` parameter and if the output is transcript - CC1/CC3 don't need the `-1` as that is set by default, but you can enter it anyway if you wish - `-svc` are the ones for CEA708 data; - From what I see from the source it will print `Services: 1 2 500` in case there are multiple ones. The argument you need to pass to `-svc` in this case would be as follows: `-svc 1,2,500` (or if you know more details (e.g. the character set), you can define the charset between brackets: `-svc 1[EUC-KR],3` Hope this answers your questions :)

claunia commented

2026-01-29 16:36:29 +00:00

@lelegard commented on GitHub (May 29, 2016):

Yes, definitely, thanks a lot.

@lelegard commented on GitHub (May 29, 2016): Yes, definitely, thanks a lot.

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Reference: starred/ccextractor#151