I has this all ready to close in a longer form and than closed the widow by mistake. DOH!
Short version:
Vegas 9 (c?) introduced limited support for Closed Caption. The ablilty to render to an Mpeg file was not included.
Vegas 10 expanded on that and by the latest version you could render Closed Captions to Mpeg.
Vegas 11 supposedly expands on Closed Captions and Line 21 even more.
Due to a recent quesiton and thread I did more looking and now have a few questions.
Rendering out to Mpeg 2, for example, using the default DVDA NTSC template, with Closed Caption 608CC data on the timeline (And using the "Promote Media Closed Captioning") you get a rendered file with the Caption data in it. Which makes sense right?
As a test I did two (And more) renders the baisc idea is one with Closed Caption info on the timeline, and one without.
At some point if you had "Save project markers in media file" unticked the Closed Caption info would not render. Now it does render - *always*. If you have a stray Closed Caption marker on a timeline it will render out the file with caption info in it. Bringing that file into, say, DVDLP2 and trying to add/replace it with a new/corrected/other data and it will not take. (I would guess because there is already line 21 data there)
Not only that but Vegas is embedding 708 Captions as well.
Compare:
When rendered out with any caption marker on the timeline with Vegas the video stream contains:
TEXT # 1
ID: 224 (0xE0) - 608-1
FORMAT: EIA-608
Muxing Mode: A/53 /DTVCC Transport
*AND*
TEXT # 2
ID: 224 (0xE0) - 1
FORMAT: EIA-708
Muxing Mode: A/53 /DTVCC Transport
Without any captions markers there is no text stream.
From withing DVDLP:
TEXT # 1
ID: 224 (0xE0) - DVD2
FORMAT: EIA-608
Muxing Mode: DVD-Video
So the questions are:
* Is this a fluke with Vegas - rendering two text streams?
* There should be some way to choose to not render out with Caption info (Which is what I had always thought the "Save project markers in media file" switch was for in relation to Closed Captions) shouldn't there? Or am I just missing it?
* Possibly this is a cause of issues people have with having display problems? If, for example, when using the DVDA templates for NTSC SD, there was an option to choose, based on DVDLP, the format of "EIA-608 - DVD2" as ooppsed to the default EIA-608 *and* EIA-708 - "A/53 /DTVCC Transport" it might fix issues. On the other hand EIA-708, which Vegas is adding, is supposedly backwards compatable with Line 21 (EIA-608) but why it is adding both I do not know nor do I know if this is why some people can see the captions and some can't.
Short version:
Vegas 9 (c?) introduced limited support for Closed Caption. The ablilty to render to an Mpeg file was not included.
Vegas 10 expanded on that and by the latest version you could render Closed Captions to Mpeg.
Vegas 11 supposedly expands on Closed Captions and Line 21 even more.
Due to a recent quesiton and thread I did more looking and now have a few questions.
Rendering out to Mpeg 2, for example, using the default DVDA NTSC template, with Closed Caption 608CC data on the timeline (And using the "Promote Media Closed Captioning") you get a rendered file with the Caption data in it. Which makes sense right?
As a test I did two (And more) renders the baisc idea is one with Closed Caption info on the timeline, and one without.
At some point if you had "Save project markers in media file" unticked the Closed Caption info would not render. Now it does render - *always*. If you have a stray Closed Caption marker on a timeline it will render out the file with caption info in it. Bringing that file into, say, DVDLP2 and trying to add/replace it with a new/corrected/other data and it will not take. (I would guess because there is already line 21 data there)
Not only that but Vegas is embedding 708 Captions as well.
Compare:
When rendered out with any caption marker on the timeline with Vegas the video stream contains:
TEXT # 1
ID: 224 (0xE0) - 608-1
FORMAT: EIA-608
Muxing Mode: A/53 /DTVCC Transport
*AND*
TEXT # 2
ID: 224 (0xE0) - 1
FORMAT: EIA-708
Muxing Mode: A/53 /DTVCC Transport
Without any captions markers there is no text stream.
From withing DVDLP:
TEXT # 1
ID: 224 (0xE0) - DVD2
FORMAT: EIA-608
Muxing Mode: DVD-Video
So the questions are:
* Is this a fluke with Vegas - rendering two text streams?
* There should be some way to choose to not render out with Caption info (Which is what I had always thought the "Save project markers in media file" switch was for in relation to Closed Captions) shouldn't there? Or am I just missing it?
* Possibly this is a cause of issues people have with having display problems? If, for example, when using the DVDA templates for NTSC SD, there was an option to choose, based on DVDLP, the format of "EIA-608 - DVD2" as ooppsed to the default EIA-608 *and* EIA-708 - "A/53 /DTVCC Transport" it might fix issues. On the other hand EIA-708, which Vegas is adding, is supposedly backwards compatable with Line 21 (EIA-608) but why it is adding both I do not know nor do I know if this is why some people can see the captions and some can't.