[Bf-committers] Blender VSE exported video goes from 1440p to 1080p

blubee blubeeme gurenchan at gmail.com
Sat May 7 16:14:15 CEST 2016 

I was away from my computer for a while. Opening the video with mplayer
this is the output from the unedited video:
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Playing 2594x1458.mkv.
libavformat version 56.40.101 (external)
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
VIDEO:  [H264]  2594x1458  0bpp  120.000 fps    0.0 kbps ( 0.0 kbyte/s)
Clip info:
 ENCODER: Lavf56.40.101
Load subtitles in ./
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 56.60.100 (external)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Audio: no sound
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 2594x1458 => 2594x1458 Planar YV12
V:   2.0   0/  0 23%  8%  0.0% 0 0

opening it with vlc and looking at the codec information:
----------------------------------------------------------------------------------------
http://i.imgur.com/m1wn3r4.png
http://i.imgur.com/UZE9zZr.png

this is the video information for the blender edited file
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Playing 2594x1458 exported from blender.mp4.
libavformat version 56.40.101 (external)
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f1724bf0880]Protocol name not provided,
cannot determine if input is local or a network protocol, buffers and
access patterns cannot be configured optimally without knowing the protocol
[lavf] stream 0: video (h264), -vid 0
VIDEO:  [H264]  2594x1458  24bpp  120.000 fps  6904.4 kbps (842.8 kbyte/s)
Clip info:
 major_brand: isom
 minor_version: 512
 compatible_brands: isomiso2avc1mp41
 encoder: Lavf56.40.101
Load subtitles in ./
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 56.60.100 (external)
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Audio: no sound
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [vdpau] 2594x1458 => 2594x1458 Planar YV12
V:   1.4   0/  0 72% 25%  0.0% 0 0

vlc information
----------------------------------------------------------------------------------------
http://i.imgur.com/XKwdWCH.png
no metadata



On Sat, May 7, 2016 at 12:59 PM, David McSween <3pointedit at gmail.com> wrote:

> So what do the properties of the second clip say when ipen in a media
> viewer?
>
> D
> On 7 May 2016 2:42 pm, "blubee blubeeme" <gurenchan at gmail.com> wrote:
>
> > That's correct, the first one was shot with ffmpeg and directly uploaded
> to
> > YouTube and it has 1440p available.
> >
> > The second one was edited in blender vse just to remove a few frames,
> > exported and uploaded to YouTube.
> >
> > The question is, why doesn't the second video have the 1440p option?
> >
> > It's the same video, the second one was just edited in blender.
> >
> > On Sat, May 7, 2016, 12:35 David McSween <3pointedit at gmail.com> wrote:
> >
> > > Well I just looked at the first one and it DOES say 1440 is available
> ;-)
> > >
> > > On Sat, May 7, 2016 at 2:25 PM, blubee blubeeme <gurenchan at gmail.com>
> > > wrote:
> > >
> > > > That just might be the case that youtube didn't encode the video at
> > that
> > > > resolution yet but maybe not.
> > > >
> > > > I made these two videos the other day
> > > > This one directly uploaded after recording with ffmpeg:
> > > > https://www.youtube.com/watch?v=2NzSlo3knbk
> > > > This one I edited with blender then uploaded:
> > > > https://www.youtube.com/watch?v=LYUTu6UV5ug
> > > >
> > > > The first one shows up to 1440p while the one exported from blender
> > only
> > > > shows 1080p. Also they encoded pretty fast and have been up for at
> > least
> > > a
> > > > day now so I am unsure.
> > > >
> > > > On Sat, May 7, 2016 at 12:21 PM, David McSween <3pointedit at gmail.com
> >
> > > > wrote:
> > > >
> > > > > Youtube's default HD setting is 1080. Open the render in VLC or
> > similar
> > > > and
> > > > > check the file attributes. Perhaps Youtube hasn't encoded a 1440
> > > > > distributable file yet?
> > > > >
> > > > > David
> > > > >
> > > > > On Sat, May 7, 2016 at 2:08 PM, blubee blubeeme <
> gurenchan at gmail.com
> > >
> > > > > wrote:
> > > > >
> > > > > > Before importing the video into blender I setup the scene
> > properties.
> > > > > > Custom fps 120
> > > > > > resolution 2594x1458
> > > > > > the scale percentage to 100%
> > > > > >
> > > > > > changed to export to mpeg 4 rgb, h.264 codec, 40000 bitrate gop
> 60
> > no
> > > > > > audio.
> > > > > >
> > > > > > Still after this process youtube reports the video as 1080p and
> not
> > > > 1440p
> > > > > > like the unedited video.
> > > > > >
> > > > > > On Sat, May 7, 2016 at 11:11 AM, David McSween <
> > 3pointedit at gmail.com
> > > >
> > > > > > wrote:
> > > > > >
> > > > > > > The vse automatically conforms your input video to the current
> > > > project
> > > > > > > dimensions.  You'll find that your pictures are being stretched
> > to
> > > > fill
> > > > > > the
> > > > > > > space. Also you should match the source frame rate.
> > > > > > >
> > > > > > > Cheers David
> > > > > > > On 7 May 2016 1:07 pm, "blubee blubeeme" <gurenchan at gmail.com>
> > > > wrote:
> > > > > > >
> > > > > > > > I wrote up a question on SO about this with details and
> > pictures
> > > > but
> > > > > no
> > > > > > > one
> > > > > > > > there even responded, hopefully someone here can help.
> > > > > > > >
> > > > > > > > Here's the question:
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> http://blender.stackexchange.com/questions/52071/video-quality-loss-after-exporting-blender-vse
> > > > > > > >
> > > > > > > > Basically I record videos with ffmpeg and directly upload it
> to
> > > > > youtube
> > > > > > > > it's resolution is 1440p, after importing the video in
> blender
> > > VSE
> > > > > > > making a
> > > > > > > > few edits and exporting it, youtube reports the resolution as
> > > 1080p
> > > > > > > >
> > > > > > > > Why is that? Are my export settings wrong, etc..?
> > > > > > > > _______________________________________________
> > > > > > > > Bf-committers mailing list
> > > > > > > > Bf-committers at blender.org
> > > > > > > > https://lists.blender.org/mailman/listinfo/bf-committers
> > > > > > > >
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