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View Full Version : Enhanced Podcast files

bond
22nd January 2006, 20:20
just had a look at this podcast sample (http://downloads.oreilly.com/make/MAKE_2005-07-18.m4b) from here (http://www.makezine.com/blog/archive/2005/07/how_to_make_enh.html)

seems to be more .mov than .mp4 (the filebrand is "M4B")

surprisingly it stores the following streams:
- aac audio
- mjpeg video
- 3gpp/mpeg-4 timed text subs (storing the links)
- chapter track (as used in mov)
Hyper Shinchan
23rd January 2006, 20:03
Apple loves new filebrand (M4A is the filebrand for I-Tunes music and M4V for the I-Pod videos made with QT7 Pro).
But there is any way to make it under Windows??? I haven't read all the article, but it seems that at least the chapter tool is only for MacOS.... it's the first good idea of Apple in the last years....
bond
23rd January 2006, 20:06
the only interesting thing imho in this file is the useage of timed text (makes me think that the ipod might support ttxt too?)
Sirber
23rd January 2006, 20:09
Why aren't podcast in MPEG4 or H264?
Hyper Shinchan
23rd January 2006, 20:12
the only interesting thing imho in this file is the useage of timed text (makes me think that the ipod might support ttxt too?)
Yep, it could be.... also if I don't have the I-Pod and I can't test it from my own (i can't even see it correctly, because i've to reinstall I-Tunes, I have the old 4.8 now.).
mvidal
24th February 2006, 15:38
Does anyone know of any tools or have documented how to create these files on Windows?
Kurtnoise
24th February 2006, 21:19
http://www.apple.com/quicktime/tutorials/videopodcasts_win.html
http://www.apple.com/quicktime/tutorials/podcasting_win.html

Thank you Apple...:D
mvidal
24th February 2006, 21:32
Thanks.

Does anyone know if there is a tool that is equivalent to the Apple Chapter Tool. This allow for the creation of MP4 files with still slides and audio with chapters.
Kurtnoise
25th February 2006, 08:14
The easiest way to create chapters for mp4, it's to use a text editor.

Syntax is very simple :

CHAPTER01=00:00:00.000
CHAPTER01NAME=Chapter 1
CHAPTER02=00:00:25.452
CHAPTER02NAME=Chapter 2
CHAPTER03=00:01:18.250
CHAPTER03NAME=Chapter 3
....

and use mp4box to mux this file with your A/V streams.

mp4box -add video/mp4 -chap chapter_file.txt output.mp4
mvidal
27th February 2006, 05:08
Thanks.

I'll have to do more research to see it it's possible to add the still images and other things. If anyone has done this and documented the steps post them here.

Thanks
ssj2_goha
5th January 2007, 00:22
Has anyone gotten the chapters to work in TV show/ movie encodes? I tried but i may have forgotten some thing..