[CinCV TNG] Setting up a Project

Terje J. Hanssen terje at nordland-teknikk.no
Mon Dec 19 20:26:24 CET 2016

> I have also been thinking about if the pixel aspect ratio could be set 
> in SF,  it could possibly be an idea to test W.Ratio=1.33
> But I haven't tried this yet, as I didn't know if W. Ration had this 
> meaning 

Noop.  W.Ratio=1.3333 caused an error message that the project was wrong 
and not multiples of 4 which could not be used with OpenGL.

Also of interest to retriev that I asked about just these Project 
settings, in HDV's childhood 9 years ago on the previous Cinelerra 
mailing list.
And the replies here show this was a confusing topic for more than me 

Terje J. H

Den 19. des. 2016 01:12, skrev Terje J. Hanssen:
> First, thanks for your in-depth explanation and samples I will have 
> this all in notice during further learning.
> I downloaded the sample m2t(.mpeg) file and tested loading it in 
> Cinelerra:
> Changed also SF Interlace mode to "Top field first" as suggested for 
> HDV in the CV-manual and according to mediainfo output.
> 1. Cin-CV:
> Loading this M2T file, Cin-CV chrashed or aborted immediately also 
> this time.
> Tried aspect settings with 4:3 and 16;9. SD DV files loads ok however.
> 2. Cin-GG:
> Loading the file with SF aspect ratio 4:3, only filled out the first 
> video image on the timeline. Full audio tracks.
> Loading the file after changing aspect ratio to 16:9 filled out video 
> images on the whole timeline
> I noticed no lengt difference between the video and audio tracks.
> Cin-GG continued:
> I loaded my own hdv.m2t files again.
> SF aspect ratio looks to change automatic to 4:3 during file load.
> This caused as previous mentioned 4:3 video images in Composer or 
> Viewer playback (output)
> Also Media "Match project" or "Match all" in the Resource window 
> change the SF aspect ratio back from 16:9 to 4:3.
> Changed SF aspect to 16:9, and yes, after that (have to save it with 
> OK), 16:9 video was opened and displayed in the playback windows
> Not sure why, but sometimes happened that the 16:9 still image here 
> changed to 4:3 starting play or opposite.
> I have also been thing about if the pixel aspect ratio could be set in 
> SF,  it could possibly be an idea to test W.Ratio=1.33
> But I haven't tried this yet, as I didn't know if W. Ration had this 
> meaning
>> Did you set /Track Size/ = /as Output Size/ ?
> No. I read the manual section but could not find the program tool to 
> do it (?)
> Attach my sample screenshot here.
> Terje J. H
> Den 18. des. 2016 21:32, skrev igor_ubuntu:
>> 2016-12-18 2:03 GMT+02:00 Terje J. Hanssen <terje at nordland-teknikk.no 
>> <mailto:terje at nordland-teknikk.no>>:
>>     /
>>     "Output size", where and for what?
>>     The reason for this question is that I think it is somewhat
>>     confusing what the Project or Format settings really influence.
>>     Loading a file (File > load) into Cinelerra I think of as the
>>     "import" or "Input file", and correspondingly rendering as the
>>     "export" or
>>     "Output file".  Does Format settings influence one or both of these?
>>     /
>> If we very simplify and generalize some things, we can say that 
>> оutput size, canvas size in Set Format, match project size in 
>> Resources   mean one the same thing => size of your output file.
>> + Read  in manual  about track size (it is very important !) /8.2.6 
>> Track and output sizes
>> /
>> + Insertion strategy plays an important role.
>>  Cinelerra has a insertion strategy `Replace ..`
>>  Only this strategy type can change (automatically) project 
>> attributes including output size.
>>  But project attributes are only changed when loading XML.
>>  If a user loads video file (not XML), project attributes are not 
>> changed.
>> It is written in the main manual and all CV* branches and HV work in 
>> accordance with manual.
>> Manual says about the strategy type:/
>> All tracks in the current project are deleted and a set of new tracks 
>> are created to match the source file.
>> _Project attributes are only changed when loading XML. _
>> If multiple files are selected for loading, Cinelerra adds a set of 
>> new tracks for each file. New resources are created in the Resources 
>> Window, replacing the current ones.
>> /
>> *
>> Insertion strategy `Replace ..` in* *CGG* *does not work  in 
>> accordance with manual*
>> If a user loads video (not XML), CGG changes project attributes 
>> (settings in SF) including output size (canvas size)
>> Your project settings in SF (project size means output size) (in SF 
>> window it is called as canvas size) will (automatically) get/have 
>> output size same as your input loaded file and your result file from 
>> cin will have size of the input file.
>> CGG's manual does not describe this behavior..
>> It says only:/
>> ...The default asset is selected and causes the format frame rate and 
>> sample rate to match media.
>> /
>>  Is it a bug, a glitch ? A feature ?
>>  -------------------
>> If a user loads video (not XML) in CV*/HV, ones do not change project 
>> attributes (settings in SF) including output size (canvas size)
>> If you load 1980x1080 input f.  with `Replace ..` for example on 
>> empty timeline, but  Project i.e. Format settings (in SF window) have 
>> f.examp. 720x576 (from previous project),  you will see in compositor 
>> 720* canvas size and your result file from cin will have  720x576 size.
>> In the case, if you want to have canvas size = 1980x1080 in 
>> compositor and result file 1980x1080, you have to set output size in 
>> SF window as 1980x1080.
>> You can do it  in SF or in Resources.
>> Right click on a video asset and selecting *Match project size* can 
>> be convenient if your file was loaded in Resources  with `Create new 
>> res.. only` and now you want to change canvas size accordingly to the 
>> asset before loading it in to timeline to new track.
>>     /Cin-CV seems to crash, but Cin-GG 5.1 loads my 1080i HDV.M2T
>>     files when
>>     Format settings is near correct. /
>> I loaded /HDV 1080i m2t/ file from 
>> http://mvd.homevideo.free.fr/films_HDV/20081103140154.m2t in CVO. 
>> http://mvd.homevideo.free.fr/Gallery/ppa0.htm
>> CVO works well with it. http://i.imgur.com/P5rbtnP.png
>>     /Tried the Match project size which i.e adjusted the to 4:3 aspect
>>     ratio.
>>     Tried both without and with checking the Auto Aspect ration
>>     button, but
>>     in both cases the playback in the Compositor or Resource was 
>> displayed
>>     with aspect 4:3 and not with 16:9. Should it?/
>> Did you set /Track Size/ = /as Output Size/ ?
>>  CGG works well for me. I can easily get both 4:3 and 16:9 with 
>> http://mvd.homevideo.free.fr/films_HDV/20081103140154.m2t
>> 4:3 http://i.imgur.com/US0sArt.png
>> 16:9 http://i.imgur.com/457LebR.png
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