Print Page - Why Avidemux changed scan type in MPEG file (stream copy)?

Title: Why Avidemux changed scan type in MPEG file (stream copy)?
Post by: cord-factor on March 14, 2012, 08:47:16 AM

Hello, I need to cut video from frame X to frame Y. When I done it with ffmpeg it is all ok. For example frame 360 to frame 1317


$ ffmpeg -timecode_frame_start 360 -i uncut.mpg -vframes 957 -vcodec copy -acodec copy cut.mpg

scantype info for result file


***
Scan type                                : Interlaced
Scan order                               : Top Field First
***

But, If I do this in Avidemux (using copy option) it changes scantype to progressive, but scan order is present too :o
mediainfo


Scan type                                : Progressive
Scan order                               : Top Field First

Why it is happens?

Title: Re: Why Avidemux changed scan type in MPEG file (stream copy)?
Post by: cord-factor on March 14, 2012, 08:50:27 AM

Source file to reproduce
http://dl.dropbox.com/u/59413997/1.mpg

Title: Re: Why Avidemux changed scan type in MPEG file (stream copy)?
Post by: Agent_007 on March 14, 2012, 09:39:49 PM

IIRC there was/is ticket for this, I will check it during weekend.

Title: Re: Why Avidemux changed scan type in MPEG file (stream copy)?
Post by: Agent_007 on March 18, 2012, 12:03:13 PM

Seems to be fixed in 2.6

Title: Re: Why Avidemux changed scan type in MPEG file (stream copy)?
Post by: cord-factor on March 19, 2012, 07:21:03 PM

Quote from: Agent_007 on March 18, 2012, 12:03:13 PM
Seems to be fixed in 2.6

Thanks. Will wait till 2.6 becomes "less-more" stable.

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