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Hello,
It appears there is no way to toggle the gappless mode by using
orca with Pitivi and move clips on a timeline however it's well
thought I think, supports all the video formats gstreamer and
ffmpeg can handle. Includes a lot of audio editing features.
Current UI is GTK+3 and is not likelly to change. As I've said a
lot of the controls are already accessible.
Last year one of the GSOC students implemented libpeas based
plugin system for pitivi so if the app it self can not easily be
improved with accessibility enhancements plugin adding more
keyboard shortcuts or alternative track selection and timeline
manipulation features might be added.
Also apparently there is a python console plugin that might be
usefull for geeks wishing to compensate for accessibility issues
that way.
This is all dreaming of course.
Now some more realistic notes:
See this part of Pitivi manual to discover how its main window
looks like: http://www.pitivi.org/manual/mainwindow.html . The
same content is available as F1 help within the app however there
are issues reading webkit gtk based yelp content.
If you would like to get at least some part of the Pitivi useable
with orca prepare to use flat review a lot.
Below the header bar there are clip selection controls. Orca can
see individual clips as drawing areas with no further content.
Thus in order to be able to select a clips import a few media
files in the library view. I suggest starting by adding one clip
into the project and emulating a click on the first drawing area
below the header bar. That should select the clip making
Contextual tabs: clip properties, transitions, titles actionable.
So if you have access to these features you do know one or more
clip is selected.
Naturally if you execute a delete action from the timeline toolbar
all the clips are deselected.
So this helped me to figure out my way around the app. I have used
space bar to play and stop video preview playback along with
emulating clicks on the playback toolbar buttons (since these are
not focusable). Playback toolbar also contains a text entry
displaying the current play head position. Emulating click on the
text entry focuses it and allows editing the time value either as
HH:MM:SS.ms or simple video frames.
Above the timeline toolbar there are loads of icons depending how
much clips you do have inside a project. This might also depend on
your screen size and clip length. For example I have loaded some
25 minute video clip and I have end up with 12 icons controlling
the timeline position and final icon for applying an effect I
gues.
I havethen tried choosing some random play head position somewhere
in the middle of that clip and splitting the clip into two. Number
of timeline icons doubled with two icons to the left, then some
kind of drawing area I haven't yet discovered if I can make some
good use out of it and 12 icons for timeline positions
corresponding with each clip.
By knowing this you might be able to cut out the end of a video or
copy part of a video into a new clip.
Cutting out begining or middle part of a video is not possible to
do with orca at least I haven't discovered on how to do it. I can
Split a clip into two, then delete the clip at the begining of a
timeline however I will end up with a bunch of silence at the
beginning followed by the second clip. In other words it would be
nice to be able to manually align a clip with exact time or video
frame position. For example if I know the clip starts at third
minute of a timeline and there are no other clips before that I
should be able to align the clip to time or frame 0.
And this is all in relation to Pitivi I was able to gather so far.
Now some general notes on how I'm dealing with video files for
example by using avidemux.
Of course there are more complex possible scenarios while working
with video editing apps however I imagine very few blind people
are going to play with this so I have only described some simple
cases you can take as your starting point and combine them with a
bit of a math and your creativity.
Jump to time, jump to frame, and begin / end range selection
commands are my key points when I am working with video files. If
good audio preview is not possible I am using audacity in a
seperate window with corresponding audio track loaded. Audacity
can display time values converted to so called film frames.
Of course I can't do nice clip transitions but I can cut and split
videos by using these techniques.
That might be usefull for dealing with some holiday / family event
videos or some simple video tutorials for my job.
Greetings
Peter
Dňa 16.05.2018 o 00:26 Andy Borka
napísal(a):
Hi,
I must use a screen reader at all times. I tried openshot with
no luck. I tried your advice and also tried pitivi, but with no
luck. What I need to do is select sections of vidio, and merge
them together with other clips of video to create videos
representing a shortened version of the entire event. For
instance, a 5K run that took 45 minutes should be clipped down
to 15-20 minutes video.
On 05/15/2018 03:41 PM, Peter Vágner
wrote:
Hello Andy,
I have just installed openshot. It has a QT based UI. I
haven't yet got a chance to load a video file in openshot but
from some initial testing it appears it may not be as
accessible as pitivi.
Can I please ask a few things?
How much eye sight you have got? Do you need screen reader at
all times when working with computers?
Can you give a few hints on how to trim a video in openshot
or any other simple action that might allow me to understand
better if I can make some use of it too?
Greetings
Peter
Dňa 15.05.2018 o 20:57 Andy Borka
napísal(a):
What about openshot? I installed it and it looks good so
far.
On 05/15/2018 10:25 AM, Peter
Vágner wrote:
Hello,
A few years ago I have used avidemux to do some simple video
cutting, trimming and reencoding of video files. If this is
enough for your task you might be able to do the same.
Also I believe you will be able to use some filters such as
resize if you know what you are doing.
Of course for filters that include color correction and
different video effects you will need a sighted help no
matter what editing tool you will end up using.
Today I've just taken a look at pitivi. Although it has a
lot of keyboard focusable controls, labelled controls and
keyboard shorcuts I think its track selection is not
accessible with orca so it will be limited too much for us.
Still I plan to reads its help to possibly discover more.
Greetings
Peter
Dňa May 15, 2018 1:13:32 AM UTC
používateľ sonfire11 gmail com
napísal:
Hi,
I have some video projects to
finish. Is there an app that lets me edit videos
with Orca?
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Orca documentation: https://help.gnome.org/users/orca/stable/
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Log bugs and feature requests at http://bugzilla.gnome.org
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