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QT Source - H264 files - Too Many Frames - HELP Pls 
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Joined: Wed, 2009/01/14 8:13 am
Posts: 5
Unread post QT Source - H264 files - Too Many Frames - HELP Pls
Hi Tateu,

I must ask a massive favour, your expert help would be greatly appreciated!!

I'm using QT Source (I think its 0.0.8 - not sure which version - have you released a higher version 0.0.8 ?).

I have these source files H264 MOV (mediainfo dump below) that I need to read into Avisynth.

But in default (mode=0) it plays back in sync, but seems to read far too many frames. In Mode=3 it plays back but audio is out of sync.

Have you seen this before?

It's really urgent as I promised a friend I would do this for him...



Format : MPEG-4
Format profile : QuickTime
Codec ID : qt
File size : 1 010 MiB
Duration : 25mn 37s
Overall bit rate : 5 512 Kbps
Encoded date : UTC 2010-09-23 03:10:59
Tagged date : UTC 2010-09-23 03:58:56

Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 25mn 37s
Bit rate mode : Variable
Bit rate : 5 252 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 5/4
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.507
Stream size : 962 MiB (95%)
Encoded date : UTC 2010-09-23 03:11:01
Tagged date : UTC 2010-09-23 03:58:56

Audio
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 25mn 37s
Bit rate mode : Constant
Bit rate : 246 Kbps
Nominal bit rate : 256 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 45.1 MiB (4%)
Encoded date : UTC 2010-09-23 03:11:01
Tagged date : UTC 2010-09-23 03:59:03


Fri, 2010/09/24 2:08 pm
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Joined: Sun, 2005/04/03 7:02 pm
Posts: 304
Location: Los Angeles, CA USA
Unread post 
h264 and Quicktime have never played well together. I suggest using FFMpegSource for h264.

Update:
Oh, and I don't think it will help with h264...but I have a new test version out:
http://forum.doom9.org/showthread.php?t=156777


Fri, 2010/09/24 2:49 pm
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Joined: Wed, 2009/01/14 8:13 am
Posts: 5
Unread post Fixed
Apparently mode=2 has fixed the error.

Great news.

Thanks for getting back so quickly


Fri, 2010/09/24 3:30 pm
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Joined: Sun, 2005/04/03 7:02 pm
Posts: 304
Location: Los Angeles, CA USA
Unread post 
Yes, sometimes certain modes work better than others. Usually, mode = 3 is best for h264, but use whatever works...

I really wish that the Quicktime API had only one decoding mode and that it worked well for all files. It would certainly make everything easier if you didn't have to figure out what worked for each type of file by trial and error.


Fri, 2010/09/24 4:01 pm
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