Search found 43 matches

by gbooker
Sun Jun 01, 2008 12:30 am
Forum: Development
Topic: AC3-in-MP4
Replies: 44
Views: 32546

Re: AC3-in-MP4

Ed, mFramePerPacket has nothing to do with ffmpeg, it's a field in the sound description in the m4v/mp4/mov file. If you switch to using a version 2 sound descriptor, since it makes the AC3 a bit more useful, I was just saying that make sure the mFramePerPacket is 0. If it's not 0, passthrough does ...
by gbooker
Thu May 29, 2008 9:02 pm
Forum: Development
Topic: AC3-in-MP4
Replies: 44
Views: 32546

Re: AC3-in-MP4

A quick tip for anyone playing with it, setting mFramePerPacket to anything breaks the AC3 passthrough. Makes no sense if you ask me, but it should remain 0.
http://trac.perian.org/changeset/905
by gbooker
Wed Apr 23, 2008 4:30 pm
Forum: Development
Topic: AC3-in-MP4
Replies: 44
Views: 32546

Re: AC3-in-MP4

van,
You are right in the spec. I just didn't look it up. Although, it does allow 24 bit audio, so there is a reason for setting that field at least. Although it doesn't seem to be mentioned in the spec, there is nothing limiting DVDs from using 24KHz sampling :wink:
by gbooker
Wed Apr 23, 2008 1:15 pm
Forum: Development
Topic: AC3-in-MP4
Replies: 44
Views: 32546

Re: AC3-in-MP4

First, I'd suggest setting the sample rate correctly. Admittedly, most DVDs are 48KHz, but this isn't a requirement in the DVD spec IIRC. Second, I'd suggest changing it to a sound description version 2 atom. Then, you can use a channel count greater than 2, set the channel layout, etc... This is us...
by gbooker
Sun Apr 20, 2008 9:49 pm
Forum: Development
Topic: AC3-in-MP4
Replies: 44
Views: 32546

Re: AC3-in-MP4

Looks like there are issues with anything that doesn't use a 384kb/s bitrate like Apple's sample. Been trying to decipher the AC3 atom data... In an effort to reduce some of the hackiness of this, I thought I'd share my discoveries yesterday. The AC3 atom isn't special . It is just a version 0 soun...
by gbooker
Fri Oct 05, 2007 10:13 pm
Forum: General Questions
Topic: 5.1 vs. 5.0, DTS, AC3 Passthrough
Replies: 6
Views: 2831

Re: 5.1 vs. 5.0, DTS, AC3 Passthrough

Would AC-3 passthrough keep the sub track? AC3 passthrough (and I am sure the same is true of DTS as well), preserves all channels because it just copies the compressed audio bit for bit. It doesn't do any decoding, any processing, anything other than copy. If you wish to preserve the sound quality...
by gbooker
Thu Oct 04, 2007 3:34 am
Forum: Mac
Topic: Babylon 5
Replies: 3
Views: 1192

Just to provide a data point: Several months ago (March or so?), I used HB to rip the entire B5 series. I did one episode per file, and didn't have a single issue. I used MTR on each disk and then encoded the ripped version in HB. I did this out of speed rather than out of necessity b/c I could be e...
by gbooker
Thu Sep 20, 2007 10:38 pm
Forum: Devices and Presets
Topic: Apple TV and 5.1 support - some definitive answers
Replies: 242
Views: 88111

Welll, I just don't want to hack my Atv just like I don't want to hack my iPhone. I'd rather use a method that doesn't require hacking Honestly, you are doing something that Apple never intended for you to ever do. Hacking is pretty much an necessity, in such situations. If you are unwilling to hac...
by gbooker
Mon Sep 10, 2007 8:46 pm
Forum: Devices and Presets
Topic: Best Setting for HACKED appleTV
Replies: 27
Views: 7648

Anamonde wrote: What do I have to do do move it out the way?
sudo mkdir "/Library/Quicktime (disabled)"
sudo mv /Library/Quicktime/AppleH264... or whatever it is called "/Library/Quicktime (disabled)"
by gbooker
Sun Sep 09, 2007 2:09 am
Forum: Devices and Presets
Topic: Best Setting for HACKED appleTV
Replies: 27
Views: 7648

So if an unhacked ATV cannot play "high profile H.264" what is this and what am I missing by it not being high profile? H.264 has several profiles, most notably baseline, main, and high. With each successive profile, more quality can be achieved in the same number of bits, but it requires...
by gbooker
Sat Sep 08, 2007 12:38 pm
Forum: Devices and Presets
Topic: Best Setting for HACKED appleTV
Replies: 27
Views: 7648

Re: actual experience using a hacked ATV

GB: One of the major reasons why I have not attempted to hack my Apple TV, is my perception, after reading some of the hack websites, that even once you install Perian, etc., it is still difficult to get iTunes to recognize a "non-standard" content file and send it over to the ATV HD. Has...
by gbooker
Fri Sep 07, 2007 4:07 pm
Forum: Devices and Presets
Topic: Best Setting for HACKED appleTV
Replies: 27
Views: 7648

It's out of the box. I'm on Windows so I don't know if any hacks (yet) exist there for Apple TV. Since that this topic is titled "Best Setting for HACKED appleTV" you should have know that hacks do exist. The best way I found to hack it is to find a friend with an intel mac (since you ask...
by gbooker
Thu Aug 23, 2007 2:39 pm
Forum: General Questions
Topic: IRC network useless?
Replies: 5
Views: 1317

Re: IRC network useless?

LSTbran wrote:It seems that a majority of these "support" chat rooms are a waste. I guess I got what I paid for.
Exactly, you paid nothing, so you are entitled to nothing. You aren't even entitled to have the program in the first place. So, stop complaining and be grateful for what you do have.
by gbooker
Tue Aug 21, 2007 12:48 am
Forum: Mac
Topic: .mkv file creation hangs at muxing
Replies: 16
Views: 6586

Yep, same here. I used to run SVN, and it worked there a few days ago, but now it fails.
by gbooker
Sat Aug 18, 2007 3:44 pm
Forum: Devices and Presets
Topic: Frequently asked questions about Dolby Digital ...
Replies: 11
Views: 4395

Re: Thanks but..

My question was really geared at how to preserve the dolby digital using handbrake and an MP4, and that's not possible due to the limitation in MP4, is what you guys are saying. MP4 has a specific list of codecs allowed within the container (sometimes I hate MPEG standard bodies), and unlike the mp...
by gbooker
Thu Aug 09, 2007 8:05 pm
Forum: Development
Topic: "Same as source" FPS Improvements
Replies: 109
Views: 25158

I would argue that this is not sufficient. I have some DVDs with interlaced content, and in some cases, the 10 preview frames do not show any sign of interlacing. Add on to examining the frame preceding and the frame following each of these 10 frames, and I think you have a robust detection mechani...
by gbooker
Thu Aug 09, 2007 12:52 pm
Forum: Development
Topic: "Same as source" FPS Improvements
Replies: 109
Views: 25158

Since we're already looking at 10 frames spaced evenly throughout the title, during the initial scan, I'm hoping it will be possible to do something like what eddyg has going on with his subtitle scan. If, say, 6 out of 10 of the preview frames register as progressive, then mark the whole title as ...
by gbooker
Wed Aug 08, 2007 9:51 pm
Forum: Feature Requests
Topic: Correct Track information for AC3 Passthrough
Replies: 3
Views: 1641

If it helps, here is some LGPL code that perian uses:

http://trac.perian.org/browser/trunk/bitstream_info.c
by gbooker
Wed Aug 08, 2007 7:53 pm
Forum: Development
Topic: AC3 Passthrough for Matroska
Replies: 7
Views: 2902

Most likely the MKV info is wrong because HB doesn't set it correctly. I posted a related topic on this:
http://handbrake.m0k.org/forum/viewtopic.php?t=2415
by gbooker
Thu Aug 02, 2007 8:42 pm
Forum: Mac
Topic: Matroska Chapters
Replies: 22
Views: 4416

saintdev wrote:@Yuvi, can you confirm that HandBrake's current output will work in the svn builds of Perian?
I (another Perian dev), can confirm it works in SVN ([653] and above) but doesn't in 1.0.
by gbooker
Wed Aug 01, 2007 7:22 pm
Forum: Mac
Topic: Matroska Chapters
Replies: 22
Views: 4416

Hi gbooker, how can we verify that chapters are being added to the MKV files? I've tried playing the files encoded with SVN 774 in mplayer but I don't see how chapters are accessed. Are you examining the file in a hex viewer? I was using Quicktime apps with Perian. Perian uses the standard for chap...
by gbooker
Wed Aug 01, 2007 1:44 pm
Forum: Mac
Topic: Matroska Chapters
Replies: 22
Views: 4416

Yep, that was it (was using macgui). Worked in 774.
by gbooker
Wed Aug 01, 2007 1:07 pm
Forum: Bugs
Topic: Progress bar not being displayed
Replies: 4
Views: 2053

Here is the fix. [NSTableView selectedRow] returns -1 when none is selected, not 0, because 0 is the index of the first element: Index: macosx/Controller.mm =================================================================== --- macosx/Controller.mm (revision 776) +++ macosx/Controller.mm (working c...
by gbooker
Wed Aug 01, 2007 12:58 pm
Forum: Bugs
Topic: Progress bar not being displayed
Replies: 4
Views: 2053

For me, in the mac gui, updating from [761] to [776] broke the progress bar too. Exception in the Console: 2007-08-01 07:53:27.934 HandBrake[23370] *** NSTimer discarding exception '*** -[NSCFArray objectAtIndex:]: index (-1) beyond bounds (4)' that raised during firing of timer with target 1842000 ...
by gbooker
Wed Aug 01, 2007 12:56 pm
Forum: Mac
Topic: Anomaly? I played a .Mov with a 5.1 AC3 sountrack in QT
Replies: 17
Views: 5190

I would suggest that you do the x264 within the MP4 track rather than the AVI track (just use AVI to give you the AC3 data). AVI was not designed to handle frames which display in a different order than decode, and so there are several hacks in place to make this work (such as multiple frames of dat...