-
-
2. Re: Chapter marks
Colin Brougham Dec 2, 2009 8:18 AM (in response to Soula-55)You can't embed chapter marks in an MPEG2 file (at least, not that I'm aware of)--you need to author a DVD to do that. You don't actually have to burn a disc, but you'll have to import the MPEG2 file into Encore to either add chapter marks or to bring in the ones you create in Premiere. If you create chapter marks in Premiere, be sure to give them a name before you export, or they otherwise will not be recognized in Encore--this is a common trip-up.
-
3. Re: Chapter marks
Soula-55 Dec 2, 2009 8:31 AM (in response to Colin Brougham)Thank you so much for your response.
The request is for a file with mpg2 extension. If I understand correctly, it seems that it cannot be done in P Pro.
Colin, thanks for the export tip to Encore, it is good to know pitfalls in advance.
-
4. Re: Chapter marks
Colin Brougham Dec 2, 2009 9:00 AM (in response to Soula-55)The request is for a file with mpg2 extension. If I understand correctly, it seems that it cannot be done in P Pro.
Well, it's not so much a limitation of PPro as it is with the MPEG2 container itself--it simply does not provide the ability to write in data or metadata like that. Some container formats--for example, QuickTime--do have that ability, but if you need an MPG, you need an MPG. Are you going to DVD, or are you trying to deliver an MPEG file by itself?
-
5. Re: Chapter marks
Soula-55 Dec 2, 2009 9:12 AM (in response to Colin Brougham)The request is for a simple mpeg file by itself, actually a few files. So, I was thinking to create a single mpeg file but having chapters, so that they can go from chapter to chapter, instead of having a bunch of little files.
-
6. Re: Chapter marks
Colin Brougham Dec 2, 2009 9:19 AM (in response to Soula-55)Got it. I think you might be out of luck with an MPEG2 container, but you might be able to use an MPEG4 container with MPEG2 video, and be able to put chapter/track markers in that. However, that's not within the realm of capabilities for PPro and AME, so you'd have to look to some third-party applications to do that.
-
7. Re: Chapter marks
Soula-55 Dec 2, 2009 9:47 AM (in response to Colin Brougham)That`s a novel idea!!!! Neat!!!!
A quick search on the Internet shows converters from mpeg2 to mpeg4. By instinct I do not like converters, usually the quality is compromised. I am open though to suggestions regarding third-party applications if you know anything specific
-
8. Re: Chapter marks
Colin Brougham Dec 2, 2009 10:04 AM (in response to Soula-55)Careful--a converter application is probably not what you want. That'll likely recompress your video and pop the video into a different container at the same time, and might not even give you the ability to add chapters, either. If you need MPEG2 video (the "stuff"), and don't care too much about the container (the "box" that holds the "stuff"), you're starting to get into some dark video magicks that might make your head spin
PPro and AME allow you to put certain kinds of "stuff" in certain kinds of "boxes"--going outside the lines is generally not possible with those alone. And for what it's worth, I may be completely talking out of my backside about being able to put MPEG2 video in an MP4 container--some camcorders, like the Sony EX1/3 shoot MPEG2 video and put it in an MP4 container, but I don't know if that's feasible outside of a camera.
Since I've never attempted this, I can't speak definitively on it, but check out this Wikipedia entry about container formats. There's a good table there showing what you can put into the various containers; from there, check out VideoHelp Tools for any number of free applications to help you package your video as you need.
-
9. Re: Chapter marks
Soula-55 Dec 2, 2009 10:23 AM (in response to Colin Brougham)Thanks a million Colin.
It is an idea that should be explored, one never ceases learning.....
-
10. Re: Chapter marks
Colin Brougham Dec 2, 2009 11:01 AM (in response to Soula-55)It is an idea that should be explored, one never ceases learning.....
Indeed! In fact, this conversation motivated me to do a little more testing, and I found that I was able to mux (shorthand for "multiplex") an MPEG2 video stream (.m2v file), AC3 audio, and a chapter text file (just a simple .txt document) into an MP4 container, and it played back and I was able to navigate to the chapter marks AND the chapter names showed up! Now, so far, I've only gotten it to play back in Media Player Classic--I don't have the MPEG2 decoding component for QT, and I don't have one for Windows Media Player either, so you'll need to have those components to get this to work on those players, but here goes:
- Encode your video using the MPEG2-DVD setting (I'm assuming that you want to stick to MPEG2, but feel free to experiment), so that you end up with "elementary" streams of video (.m2v) and audio (.wav, .ac3, .mp2--again, it will depend on the decoders you have installed).
- Create a text file with your chapters in a format like this:
CHAPTER1=00:00:30:00
CHAPTER1NAME=Look
CHAPTER2=00:01:30:00
CHAPTER2NAME=At
CHAPTER3=00:02:00:00
CHAPTER3NAME=This - Download and install YAMB (Yet Another MP4Box UI).
- Use "Creation Mode" to create an MP4 file, adding your video, audio, and chapter files. Name your output, and create the file. As said above, in Media Player Classic, this works beautifully, letting you skip from chapter to chapter mark, with the text of the chapter name displayed in the status bar at the bottom of the player. Very cool, if I do say so myself!
I hope that helps--I'm interested to hear how this works out for you--good luck!
ADDENDUM:
Here's what you'll see in MPC:
... and here's the skinny via MediaInfo:
General
Complete name : E:\WalstromMarine.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 209 MiB
Duration : 3mn 36s
Overall bit rate : 8 103 Kbps
Encoded date : UTC 2009-12-01 18:23:55
Tagged date : UTC 2009-12-01 18:23:55
Writing application : Yamb 2.1.0.0 [http://yamb.unite-video.com]
Video
ID : 1
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, Matrix : Default
Codec ID : 65
Duration : 10s 1ms
Bit rate mode : Variable
Bit rate : 7 909 Kbps
Nominal bit rate : 8 000 Kbps
Maximum bit rate : 8 530 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 0.073
Original display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 29.970 fps
Standard : NTSC
Colorimetry : 4:2:0
Scan type : Interlaced
Scan order : Bottom Field First
Bits/(Pixel*Frame) : 0.764
Stream size : 204 MiB (98%)
Writing library : TMPGEnc MPEG Editor 1.3.4.100
Encoded date : UTC 2009-12-01 18:23:55
Tagged date : UTC 2009-12-01 18:23:58
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : ac-3
Duration : 3mn 36s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 4.95 MiB (2%)
Encoded date : UTC 2009-12-01 18:23:58
Tagged date : UTC 2009-12-01 18:23:58
Menu
00:00:30.000 : Look
00:01:30.000 : At
00:02:00.000 : ThisI'm geeked about this--new things are opening up!
-
11. Re: Chapter marks
Soula-55 Dec 2, 2009 3:45 PM (in response to Colin Brougham)WOW!!!
I must say this IS impressive!!! It certainly motivates everyone to experiment and try new methods!!!
Thanks again Colin, I am really overwhelmed!!!
-
-
13. Re: Chapter marks
Bill Hunt Dec 2, 2009 8:02 PM (in response to Soula-55)Hope that Colin's method works a treat for you. He is an asset here!
Good luck,
Hunt




