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Old 23rd February 2013, 06:54   #1  |  Link
Lyris
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Quick way to show Picture Type in AVC or MPEG2 stream

Hey forum,
When authoring BDs with Sony DoStudio (previously Netblender), I ideally want to have the chapter marks on I-Frames.

Trouble is, DoStudio doesn't have any feedback on whether or not the timecode you gave it actually is an I-frame.

Is there some sort of Avisynth filter that can display the coded picture type on screen so I can be sure?
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Old 23rd February 2013, 13:59   #2  |  Link
mp3dom
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For MPEG2 you can use VDub and the fccHandler mpeg2 plugin. It will tell you the type of every frame.
For AVC, try to take a look at AVIDemux. You probably need to put your raw AVC stream in a container.

Last edited by mp3dom; 23rd February 2013 at 14:04.
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Old 23rd February 2013, 22:22   #3  |  Link
StainlessS
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Perhaps the three consecutive posts here can assist:-
http://forum.doom9.org/showthread.ph...63#post1607563

EDIT: You can use 'ShowFrameNumber()' on source clip or
'Show=true' in either Prune() or FrameSelect() to show the frame numbers
in extracted I/KEY frame only clips.

EDIT: Or just use the generated text list of I/KEY frames.

EDIT: This method allows programatical control rather than just viewing I frame numbers.
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Old 23rd February 2013, 23:01   #4  |  Link
Chikuzen
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LoadPlugin("DGDecode.dll")
MPEG2Source("video", info=1)

and

LoadPlugin("ffms2.dll")
Import("ffms2.avsi")
FFVideoSource("video").FFInfo()
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Old 23rd February 2013, 23:39   #5  |  Link
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For AVC and VC1 you can use DGDecNV:

DGSource(...,debug=true)
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Old 25th February 2013, 14:57   #6  |  Link
pandy
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Or FFDShow with OSD ON - then select information to display as you like.
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Old 27th February 2013, 01:28   #7  |  Link
Lyris
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Many thanks, all! Knew it was possible!
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