[Kdenlive-devel] PAL wide profile possible PAR problem

[Stéphane Téletchéa]

----- "Dan Dennedy" <dan at dennedy.org> a écrit :

> > OK, it sounds like the aspect of the wide DVD footage is distorted to
> squeeze the 16:9 to (nearly) entirely fill the 4:3 frame.

Yes, probably.

 You said
> the
> problem also appears in inigo, but I want to know if you played the
> kdenlive project file or just the 16:9 DVD video file.

The squeeze appears in kdenlive see below for reports.

Also, here are
> some things to do to discover the source of the problem:
>
> 1.) Again, just playing the distorted file in inigo: inigo -profile
> dv_pal some.mpg

aspect ratio is correct:

export SDL_AUDIODRIVER=esd (needed for pulseaudio correct playback)
inigo -profile dv_pal VTS_03_1.VOB

> 2.) Play the file using ffplay; does it look correct?

yes

> 3.) Send the output of 'inigo some.mpg -consumer westley'

inigo VTS_03_1.VOB -consumer westley
<?xml version="1.0"?>
<westley title="VTS_03_1.VOB">
  <producer id="producer0" in="0" out="374">
    <property name="mlt_type">producer</property>
    <property name="aspect_ratio">1.422222</property>
    <property name="length">375</property>
    <property name="eof">pause</property>
    <property name="resource">VTS_03_1.VOB</property>
    <property name="seekable">1</property>
    <property name="audio_index">2</property>
    <property name="video_index">1</property>
    <property name="meta.attr.title.markup"></property>
    <property name="meta.attr.author.markup"></property>
    <property name="meta.attr.copyright.markup"></property>
    <property name="meta.attr.comment.markup"></property>
    <property name="meta.attr.album.markup"></property>
    <property name="av_bypass">0</property>
    <property name="mlt_service">avformat</property>
  </producer>
  <playlist id="playlist0">
    <entry producer="producer0" in="0" out="374"/>
  </playlist>
  <tractor id="tractor0" title="VTS_03_1.VOB" global_feed="1" in="0" out="374">
    <track producer="playlist0"/>
  </tractor>
</westley>


> 4.) Send the output of 'ffmpeg -i some.mpg'

ffmpeg -i VTS_03_1.VOB
FFmpeg version SVN-r14161, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration: --prefix=/usr --enable-shared --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --enable-liba52 --enable-postproc --enable-gpl --enable-pthreads --enable-libnut --enable-libtheora --enable-libvorbis --enable-x11grab --enable-swscale
  libavutil version: 49.7.0
  libavcodec version: 51.60.0
  libavformat version: 52.17.0
  libavdevice version: 52.0.0
  built on Jul 11 2008 01:46:31, gcc: 4.3.1 20080626 (prerelease)
Input #0, mpeg, from 'VTS_03_1.VOB':
  Duration: 00:00:15.00, start: 0.228178, bitrate: 185627 kb/s
    Stream #0.0[0x20]: Subtitle: dvdsub
    Stream #0.1[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 64:45 DAR 16:9], 9100 kb/s, 25.00 tb(r)
    Stream #0.2[0x80]: Audio: liba52, 48000 Hz, stereo, 256 kb/s
Must supply at least one output file


To be clearer, i can say that each file seems to be fine independently, but i'm unable to combine a 4/3 dv file and a 16/9 file (dv wide).

See the two screenshots: 
http://www.steletch.org/rpm/screenshots/kdenlive_4:3.png
http://www.steletch.org/rpm/screenshots/kdenlive_16:9.png

I would assume the 16:9 would be cropped to fill the whole 4/3 format (i prefer to have the borders removed than to have the two borders appearing on the top and the bottom.

Of course, i have checked the exported project and there are still the up and bottom borders.

Is this clearer?