Modify

Opened 10 years ago

Closed 10 years ago

Last modified 10 years ago

#3961 closed defect (invalid)

Wrong resolution in LP profile

Reported by: anonymous Owned by: paulh
Priority: major Milestone: unknown
Component: mytharchive Version: unknown
Severity: medium Keywords: mytharchive ffmpeg resolution
Cc: Ticket locked: no

Description

The LP profile is specified to have a resolution of 352x576. It is supposed to be 576x352. At the moment ffmpeg will return an error when MythArchive? wants to run it and terminates MythArchive?. The error is in /trunk/mythplugins/mytharchive/mythburn/encoder_profiles/ffmpeg_dvd_pal.xml

<profile> 44 <name>LP</name> 45 <description>A long play profile giving approx. 4 hour of video on a single layer DVD</description> 46 <bitrate>1030.07</bitrate> 47 <passes>1</passes> 48 <parameter name="-v" value="1"/> 49 <parameter name="-i" value="%inputfile"/> 50 <parameter name="-r" value="pal"/> 51 <parameter name="-target" value="dvd"/> 52 <parameter name="-b" value="2344k"/> 53 <parameter name="-s" value="352x576"/> 54 <parameter name="-acodec" value="ac3"/> 55 <parameter name="-ab" value="192k"/> 56 <parameter name="-ac" value="2"/> 57 <parameter name="-copyts" value=""/> 58 <parameter name="-aspect" value="%aspect"/> 59 <parameter name="" value="%outputfile"/> 60 </profile>

Attachments (0)

Change History (6)

comment:1 Changed 10 years ago by paulh

  • Resolution set to invalid
  • Status changed from new to closed

352x576 is a valid DVD resolution for PAL.

comment:2 Changed 10 years ago by laga@…

  • Resolution invalid deleted
  • Status changed from closed to reopened

Hi,

while I'm not the OP, he reported this bug in the ubuntu bug tracker as well, providing further explanation:


It is wrong because ffmpeg want a width x height resolution. 576x352 would be ok.

Snippet from progress.log
************************************************************
2007-09-11 18:09:09 ERROR: Failed while running ffmpeg to re-encode video.
Command was ffmpeg -threads 2 -v 1 -i "/media/filer/temp/work/1/newfile.mpg" -r pal -target dvd -b 2344k -s 352x576 -acodec ac3 -ab 192 -ac 2 -copyts -aspect 4:3 "/media/filer/temp/work/1/newfile2.mpg" -map 0:0 -map 0:1
2007-09-11 18:09:09 ************************************************************

Snippet from ffmpeg man page
 -s size
           Set frame size. The format is wxh (ffserver default = 160x128, ffm‐
           peg default = same as source).

Link: https://bugs.edge.launchpad.net/mythtv/+bug/138857

comment:3 Changed 10 years ago by stuartm

  • Resolution set to invalid
  • Status changed from reopened to closed

352 is the width, 576 is the height. The usage is correct.

comment:4 follow-up: Changed 10 years ago by stuartm

Maybe this would be more appropriate for the ffmpeg bug tracker?

comment:5 in reply to: ↑ 4 Changed 10 years ago by mythtv@…

Seems a very strange resolution to me, but ok. The problem then becomes that many users won't capture tv with a ...x576 resolution. Is ffmpeg supposed to re-encode files that have an height of less then 576 pixels to something with an heigt of 576 pixels?

comment:6 Changed 10 years ago by stuartm

The clue is in the filename "ffmpeg_dvd_pal.xml". This is a PAL resolution, anyone in a PAL area should be capturing TV with 576 lines. If they are in an NTSC area then they need to choose another profile.

Add Comment

Modify Ticket

Action
as closed The owner will remain paulh.
The resolution will be deleted. Next status will be 'new'.
Author


E-mail address and user name can be saved in the Preferences.

 
Note: See TracTickets for help on using tickets.