littletom1201 / lavfilters

Automatically exported from code.google.com/p/lavfilters
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LAV Video plays wrong framerate of VFR file with Intel QuickSync Decoder #503

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago
Describe the issue you're having:
When Intel QuickSync is enabled under hardware decoding, variable framerate 
(VFR) files play at max framerate.

How can the issue be reproduced? Sample File?
Yes, sample file here: http://1drv.ms/1FIhnY0

What version of the product are you using? In which Player?
LAV Fileters 0.63.0

Please provide any additional information below.
Source files are MP4 container with H.264 High Profile 4.1 video encoded using 
Handbrake at variable framerate (default for handbrake 'normal' and 'high' 
profiles).  CPU is Intel i3-2100 capable of using QuickSync technology.  Files 
play at 59.96 frames per second (max) instead of the variable framerate.

Original issue reported on code.google.com by wilk...@hotmail.com on 2 Dec 2014 at 8:07

Attachments:

GoogleCodeExporter commented 8 years ago
Timestamps are handled by the IntelQuickSync decoder internally.
Please report your problems to the author of said decoder here:
http://forum.doom9.org/showthread.php?t=162442

In the meantime, I can only strongly recommend to use DXVA2-CopyBack instead, 
which uses the same hardware for decoding, but is fully controlled by LAV Video 
instead of a third-party decoder library.

Original comment by h.lepp...@gmail.com on 2 Dec 2014 at 11:04

GoogleCodeExporter commented 8 years ago
Can you use DXVA2-CopyBack without a GPU?  I use the i3-2100 for graphics, no 
GPU card.

Original comment by wilk...@hotmail.com on 3 Dec 2014 at 3:15