Panucci Podcast and Audiobook Player - Page 23 - maemo.org

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	thp	2010-04-08 , 16:42
	Posts: 1,391 \| Thanked: 4,272 times \| Joined on Sep 2007 @ Vienna, Austria	#221

Originally Posted by Strutten

It's when I have listned to a file, and then shut down panucci, and start it again. The time is correct, but when I press play, it makes a jump.

All files have been ripped from cd by me on the same computer with the same program, and then merged into one big file by me in the same program, so nothing there.

Yes, it could be a problem with VBR (variable bit rate). Basically with a constant bitrate (CBR), the decoder can basically jump to the right position in the file by multiplying the bitrate with the position. With variable bitrate, this is not really possible, because the time does not map 1:1 to the data position in the file (because the bitrate is.. variable).

Can you go back to the exact position once playback has started?

Also, can you try to rip the CDs again with CBR (constant bitrate) mode and try to reproduce the problem, so we can be sure that the problem here is with variable bitrate files? You should be able to configure which mode (VBR or CBR) you want to use in the "encoder options" or "MP3 options" or "codec settings" of the application that you use for ripping the CDs. Also be sure to not re-encode the files in VBR mode when stitching the files together.

Edit: You can use a program like MP3 Diags to open your existing MP3 files and check if they are CBR or VBR.

Last edited by thp; 2010-04-08 at 16:45.

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	Strutten	2010-04-08 , 17:19
	Posts: 147 \| Thanked: 67 times \| Joined on Dec 2009 @ Stockholm, Sweden	#222

Originally Posted by thp

Yes, it could be a problem with VBR (variable bit rate). Basically with a constant bitrate (CBR), the decoder can basically jump to the right position in the file by multiplying the bitrate with the position. With variable bitrate, this is not really possible, because the time does not map 1:1 to the data position in the file (because the bitrate is.. variable).

Can you go back to the exact position once playback has started?

Also, can you try to rip the CDs again with CBR (constant bitrate) mode and try to reproduce the problem, so we can be sure that the problem here is with variable bitrate files? You should be able to configure which mode (VBR or CBR) you want to use in the "encoder options" or "MP3 options" or "codec settings" of the application that you use for ripping the CDs. Also be sure to not re-encode the files in VBR mode when stitching the files together.

Edit: You can use a program like MP3 Diags to open your existing MP3 files and check if they are CBR or VBR.

I can go to the exact position after the jump, and have already gotten used to look at the exact time when I start
Panucci.

MP3 Diags is a linux-only program, and I have windows. If you give me your mail I could sprend the file to you. It is protected by copyright, but if you promise to delete it, and not listen to the swedish audio book (I'm guessing you don't speak a word Swedish?) I don't think that maemo.org would disapprove of this, do you?

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Rob1n	2010-04-08 , 17:30
Posts: 3,617 \| Thanked: 2,412 times \| Joined on Nov 2009 @ Cambridge, UK	#223

Originally Posted by thp

Which version of Panucci are you using (and on a N8x0 or on a N900)? I just tried putting a MicroSD card into my N900 and I was able to go all the way to the "top" (with the button in the upper left corner of the dialog) and see two entries: My N900 and the SD card.

This is on a N900, and is version 0.3.9-5. The file browser starts up in /home/user and I can only go up to /home - the up button greys out after that (and doesn't respond).

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	thp	2010-04-09 , 11:55
	Posts: 1,391 \| Thanked: 4,272 times \| Joined on Sep 2007 @ Vienna, Austria	#224

Originally Posted by Strutten

MP3 Diags is a linux-only program, and I have windows. If you give me your mail I could sprend the file to you. It is protected by copyright, but if you promise to delete it, and not listen to the swedish audio book (I'm guessing you don't speak a word Swedish?) I don't think that maemo.org would disapprove of this, do you?

You can send files to thp@gpodder.org.

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	thp	2010-04-09 , 11:57
	Posts: 1,391 \| Thanked: 4,272 times \| Joined on Sep 2007 @ Vienna, Austria	#225

Originally Posted by Rob1n

This is on a N900, and is version 0.3.9-5. The file browser starts up in /home/user and I can only go up to /home - the up button greys out after that (and doesn't respond).

I really can't reproduce this here. I also don't see any resemblance of the filesystems in file chooser dialogs, just two roots (one for MyDocs and one for the SD card, if inserted). I don't know how you see "/home/user" and "/home" in that dialog.

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	Strutten	2010-04-09 , 12:30
	Posts: 147 \| Thanked: 67 times \| Joined on Dec 2009 @ Stockholm, Sweden	#226

Originally Posted by thp

You can send files to thp@gpodder.org.

When merging a new file now, I saw the option to use vbr, but I unchecked, and will see if it makes a difference. If not, I'll sprend you the file.

Thank you for really providing help in this community!

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Rob1n	2010-04-09 , 13:08
Posts: 3,617 \| Thanked: 2,412 times \| Joined on Nov 2009 @ Cambridge, UK	#227

Originally Posted by thp

I really can't reproduce this here. I also don't see any resemblance of the filesystems in file chooser dialogs, just two roots (one for MyDocs and one for the SD card, if inserted). I don't know how you see "/home/user" and "/home" in that dialog.

I've had a dig around, and the problem seems to be that settings.py sets the last_folder to '~' by default. This is then used to set the start directory for the file browser. Once this is reset to somewhere within MyDocs (e.g. by opening a file from there), the browser will work as normal. I'd suggest setting the default to MyDocs (or None, if that doesn't cause issues elsewhere) instead.

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The Following User Says Thank You to Rob1n For This Useful Post:
thp

	thp	2010-04-11 , 13:24
	Posts: 1,391 \| Thanked: 4,272 times \| Joined on Sep 2007 @ Vienna, Austria	#228

Panucci 0.3.12 will be in Extras-Testing soon: http://maemo.org/packages/view/panucci/

Some highlights:

Fix the SD card issue (default to /home/user/MyDocs)
Support for BT headset buttons (please test - bug 8283)
Update the bugtracker URL in debian/control
Add missing python-osso dependency
Show the correct app version in about (bug 9815)
Use the Hildon-Extras About Dialog (bug 9814)
Use Maemo 5-styled confirmation dialog (bug 9818)

Now it's (again) your turn: Test it and then vote and report any bugs you find

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The Following 5 Users Say Thank You to thp For This Useful Post:
electristan, pelago, raily, Rob1n, Strutten

	Strutten	2010-04-12 , 11:25
	Posts: 147 \| Thanked: 67 times \| Joined on Dec 2009 @ Stockholm, Sweden	#229

Originally Posted by thp

You can send files to thp@gpodder.org.

I have now sprended the file to you. Without VBR in the merging, Panucci behaves very unreliable with the file. It doesn't start exactly right when opened, and jumpes worse than ever when pressing play.