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View Full Version : Questions on authoring BD with Scenarist 5.2


Eric69
21st December 2011, 23:11
Hello

Ive been commissioned to author an upcoming BD title on Scenarist 5.2 and have some workflow questions:

1. Once I have my designer file imported, whats the difference between adding an IG as a subpath in a stream vs. adding an IG in the Clip? Both ways work fine

2. In the Scenario Editor I see I can add a title with an associated Movie Object or add a Movie Object by itself....whats the difference between the two?

3. This title will have a audio set up Page. I'd like to be able to code the disc to detect which audio stream is currently active and "highlight" the correct button based the value of the PSR. This would be done with a dummy button on that Audio Set Up page, correct?

4. Same goes for the Current Chapter Selection. We'd need a dummy button to test these values and route to the correct Set Button,Page...correct?

5. Could someone give some info on the bitrates for DTS Master Audio and DTS High Resolution? I need to do a bitbudget for a 180 min feature. The client wants PCM 2.0 and DTS High resolution Audio. They are providing the DTS stream but I still need my Bit Budget. It looks as if this will be a DL project?

mp3dom
22nd December 2011, 09:34
Hello
1. Once I have my designer file imported, whats the difference between adding an IG as a subpath in a stream vs. adding an IG in the Clip? Both ways work fine


IG in a subpath is a standalone file while in a clip is directly muxed in the same file. The are differences, for example if you have slideshows, as a subpath you need to load only one IG, while in a clip you need to mux it in every clip. Also with IG muxed in a clip you have a hiccup every time the clip ends. As a subpath you can loop your video indefinitely without hiccups. Basically if you mux the IG in the clip, that IG will exists while that clip is playing. Changing the clip will unload both the clip and the IG.


3. This title will have a audio set up Page. I'd like to be able to code the disc to detect which audio stream is currently active and "highlight" the correct button based the value of the PSR. This would be done with a dummy button on that Audio Set Up page, correct?

There are more ways to obtain the same result. Your way surely should work.


4. Same goes for the Current Chapter Selection. We'd need a dummy button to test these values and route to the correct Set Button,Page...correct?

In this case I think it's better to do the checks on the calling page (for example Main Menu). You have to do additional checks if you put the dummy button on the chapter page (especially if you have more than one chapter page selection)


5. Could someone give some info on the bitrates for DTS Master Audio and DTS High Resolution? I need to do a bitbudget for a 180 min feature. The client wants PCM 2.0 and DTS High resolution Audio. They are providing the DTS stream but I still need my Bit Budget. It looks as if this will be a DL project?

dts Master Audio have VBR bitrate so it can't be estimated without an encode. The final filesize depends by a lot of factors, for example if you have 24bit audio, if you dynamic-compress your audio or limiting it in some way (cut above -6dB for example) and so on.

dts High Resolution on the other way is CBR so you can estimate it without encoding. The filesize depends by the bitrate you choose. Anyway High Resolution is a lossy encode with higher bitrate than 1509Kbps (which is classical dts full rate) that probably doesn't differ too much (in filesize) from a Master Audio stream (which is lossless).

Eric69
23rd December 2011, 05:28
Thanks! I really appreciate your help