[CinCVS] Cinelerra on Ubuntu

[Raffaella Traniello]

Hi!

I'm using Cinelerra HV on Ubuntu.
I'm a very beginner with Linux.
I'm starting to assume that something is not working properly.
Can it be that Cinelerra HV is made for Fedora and not for Ubuntu?
Do you suggest to install Cinelerra CV instead?

These are my problems:

1. Randomly (1 out of 10) the compositor is dark (no image, sound only).
There are no disabled buttons in the patch/control area.

2. Double clicking between two labels on the timeline doesn't highlights
the region between the labels. Instead it highlights the whole edit I'm clicking on.

3. Trimming: when I move the cursor I don't see the changing in the
compositor window. It keeps showing the same still image and I can't
decide the extent of my trimming.

4. Trimming: sometimes (randomly?) when i drag the margin of an edit in
the video track the audio track won't follow. All the tracks are armed.
In this way I miss the match between audio and video in the edits.

One last question: How can I split and edit in two on the timeline
(trimming)?

Thanks for any support you can give me.

Raffaella

[Ichthyostega]

I'm using Cinelerra HV on Ubuntu. I'm a very beginner with Linux. I'm starting to assume that
something is not working properly. Can it be that Cinelerra HV is made for Fedora and not for
Ubuntu? Do you suggest to install Cinelerra CV instead?

Hi Rafaella,
Cinelerra is not made for a specific distribution. I saw people here
using it on Slackware, Fedora, Gentoo, SuSE, and I am on Debian (you
probably know that Ubuntu is a derivative of Debian and uses the same
package manager).

Do you know the Wikipedia entry on Cinelerra? Pierre Dumuid recently
added a paragraph on the two different Versions of Cinelerra there:
http://en.wikipedia.org/wiki/Cinelerra#The_Community_Version

Many of us here (including myself) are using the CV-Version; this
version gets additional Fixes and small improvements over the time,
so /we/ believe it to me more stable and usable.
You should note though, that from time to time, when there are
larger modifications, it can get more instable. So it's probably
a good idea to have a look at this mailing list in order to know
what's going on.

Recently, there was a new Version (2.1) released by HeroineWarrior.
The Community just started to integrate this changes into the CV-Version,
so you can expect some destabilizing of the CV-Version for some time in
the Future. So I would advice everyone not immediately interested in the
new Features of HV-2.1 to stick to the last CV-Version before this
transition until you see people positively reporting they are
successfully using the upcoming new CV-Versions.

The Community-Verson uses a Version Management Tool called "Subversion"
to manage the different code versions. The aforementioned "last 2.0-CV-Version"
has the Revision Number 836 in the Subversion. At
http://www.kiberpipa.org/~minmax/cinelerra/builds/sid/
you will find Debian Packages of the CV-Version, the last beeing from 6.Jun.2006

See also:
http://cvs.cinelerra.org/getting_cinelerra.php

Reuben Firmin just wrote an Blog Article comparing Cinelerra and Main Actor.
In one of this entries he covered the Installation of Cinelerra-CV on Ubuntu,
probably of some interest to you
http://flavor8.com/index.php/2006/07/15/mainactor-vs-cinelerra-installing/

1. Randomly (1 out of 10) the compositor is dark (no image, sound only). There are no disabled
buttons in the patch/control area.

This sounds strange, like a bug. To help more, it would be necessary to
know what media format you are using (DV-Avi, raw DV, quicktime, mpeg ts...).

2. Double clicking between two labels on the timeline doesn't highlights the region between the
labels. Instead it highlights the whole edit I'm clicking on.

Yes, that's the way cinelerra does this...
If you want to select the range between two lables: click at one lable
and then shift-click on the second. You could enter values into the
position-display in the status line as well in order to select a very
precise range (e.g. 3 Frames).

And another very important command for editing is the "paste silence"
from the edit menu!!

3. Trimming: when I move the cursor I don't see the changing in the compositor window. It keeps
showing the same still image and I can't decide the extent of my trimming.

Yes, that's a well known shortcomming. You have to utilize lables
as a workaround...
Hint: you can move the locator by single frames using the numpad keys.

4. Trimming: sometimes (randomly?) when i drag the margin of an edit in the video track the audio
track won't follow. All the tracks are armed. In this way I miss the match between audio and
video in the edits.

Make sure you have selected the "align cursor to frames" in the settings
menu. Cinelerra uses a trick to keep sync between audo and video: the
edit actions manipulate /all/ clips on all armed tracks
/which start at exactly the same position/. If you don't align cursor to frames,
then the audio clip can start on every location in between frames. You can see
this effect by zooming in to the level of single frames.

One last question: How can I split and edit in two on the timeline (trimming)?

This one is surprisingly difficult (or am I missing something obvious??)
You can select a part and cut it away (to clipboard), but if you re-insert
it immediately, cinelerra will automatically join it together to be
one single clip again. (Unter certain other circumstances this behaviour
is helpfull, but here it's rather not).
But you can always paste the part cut off on a different location.

For trimming you use the mouse at the border of the edit. It is important
to note from wich side of the cut you are aproaching. The three mouse
buttons by default have different meaning (and this can be configured
in the options menu). You can trim, roll and slide edits.

See in the Manual TWiki:
http://www.ftconsult.com/twiki/bin/view/Cinelerra/Trimming

And one final note:
There are programs out there which you can learn "hands on" by simply
discovering their features. For Cinelerra this is *not true*, seriousely.
So please take some time to read the manual beforehand, you really save
yourself a lot of frustration. ;-)
At least you should walk through the Chapter "Unterstanding the User Interface"
http://www.ftconsult.com/twiki/bin/view/Cinelerra/UnderstandingTheUI

have fun!

Cheers,
Hermann Vosseler

[Aaron Newcomb]

Raffaella,

I also had some problems getting Cinelerra to work on Ubuntu 6.06. You
can check out my blog post with a link to the solution that worked for
me here:

http://www.thesourceshow.org/blog/1

Hope this helps!

Post by Ichthyostega

I'm using Cinelerra HV on Ubuntu. I'm a very beginner with Linux. I'm starting to assume that
something is not working properly. Can it be that Cinelerra HV is made for Fedora and not for
Ubuntu? Do you suggest to install Cinelerra CV instead?

Hi Rafaella,
Cinelerra is not made for a specific distribution. I saw people here
using it on Slackware, Fedora, Gentoo, SuSE, and I am on Debian (you
probably know that Ubuntu is a derivative of Debian and uses the same
package manager).
Do you know the Wikipedia entry on Cinelerra? Pierre Dumuid recently
http://en.wikipedia.org/wiki/Cinelerra#The_Community_Version
Many of us here (including myself) are using the CV-Version; this
version gets additional Fixes and small improvements over the time,
so /we/ believe it to me more stable and usable.
You should note though, that from time to time, when there are
larger modifications, it can get more instable. So it's probably
a good idea to have a look at this mailing list in order to know
what's going on.
Recently, there was a new Version (2.1) released by HeroineWarrior.
The Community just started to integrate this changes into the CV-Version,
so you can expect some destabilizing of the CV-Version for some time in
the Future. So I would advice everyone not immediately interested in the
new Features of HV-2.1 to stick to the last CV-Version before this
transition until you see people positively reporting they are
successfully using the upcoming new CV-Versions.
The Community-Verson uses a Version Management Tool called "Subversion"
to manage the different code versions. The aforementioned "last 2.0-CV-Version"
has the Revision Number 836 in the Subversion. At
http://www.kiberpipa.org/~minmax/cinelerra/builds/sid/
you will find Debian Packages of the CV-Version, the last beeing from 6.Jun.2006
http://cvs.cinelerra.org/getting_cinelerra.php
Reuben Firmin just wrote an Blog Article comparing Cinelerra and Main Actor.
In one of this entries he covered the Installation of Cinelerra-CV on Ubuntu,
probably of some interest to you
http://flavor8.com/index.php/2006/07/15/mainactor-vs-cinelerra-installing/

1. Randomly (1 out of 10) the compositor is dark (no image, sound only). There are no disabled
buttons in the patch/control area.

This sounds strange, like a bug. To help more, it would be necessary to
know what media format you are using (DV-Avi, raw DV, quicktime, mpeg ts...).

2. Double clicking between two labels on the timeline doesn't highlights the region between the
labels. Instead it highlights the whole edit I'm clicking on.

Yes, that's the way cinelerra does this...
If you want to select the range between two lables: click at one lable
and then shift-click on the second. You could enter values into the
position-display in the status line as well in order to select a very
precise range (e.g. 3 Frames).
And another very important command for editing is the "paste silence"
from the edit menu!!

3. Trimming: when I move the cursor I don't see the changing in the compositor window. It keeps
showing the same still image and I can't decide the extent of my trimming.

Yes, that's a well known shortcomming. You have to utilize lables
as a workaround...
Hint: you can move the locator by single frames using the numpad keys.

4. Trimming: sometimes (randomly?) when i drag the margin of an edit in the video track the audio
track won't follow. All the tracks are armed. In this way I miss the match between audio and
video in the edits.

Make sure you have selected the "align cursor to frames" in the settings
menu. Cinelerra uses a trick to keep sync between audo and video: the
edit actions manipulate /all/ clips on all armed tracks
/which start at exactly the same position/. If you don't align cursor to frames,
then the audio clip can start on every location in between frames. You can see
this effect by zooming in to the level of single frames.

One last question: How can I split and edit in two on the timeline (trimming)?

This one is surprisingly difficult (or am I missing something obvious??)
You can select a part and cut it away (to clipboard), but if you re-insert
it immediately, cinelerra will automatically join it together to be
one single clip again. (Unter certain other circumstances this behaviour
is helpfull, but here it's rather not).
But you can always paste the part cut off on a different location.
For trimming you use the mouse at the border of the edit. It is important
to note from wich side of the cut you are aproaching. The three mouse
buttons by default have different meaning (and this can be configured
in the options menu). You can trim, roll and slide edits.
http://www.ftconsult.com/twiki/bin/view/Cinelerra/Trimming
There are programs out there which you can learn "hands on" by simply
discovering their features. For Cinelerra this is *not true*, seriousely.
So please take some time to read the manual beforehand, you really save
yourself a lot of frustration. ;-)
At least you should walk through the Chapter "Unterstanding the User Interface"
http://www.ftconsult.com/twiki/bin/view/Cinelerra/UnderstandingTheUI
have fun!
Cheers,
Hermann Vosseler

[Marcin Kostur]

Post by Raffaella Traniello
1. Randomly (1 out of 10) the compositor is dark

xv problem: try playing some video with ffplay or kino
it magically unlocks xv.
On the other hand if mplayer will lock it again.

;-)

Marcin

[Raffaella Traniello]

Hallo everyone.

I'm now a properly registered mailing list user.
I was quite shy in asking for help. I'm now touched by the power of the
Linux Community.
Thanks everyone.

Thanks very much to Aaron. I'll try to install Cinelerra on Ubuntu his
way. Which version is it?

Thanks a lot to Marcin.

Post by Marcin Kostur

Post by Raffaella Traniello
1. Randomly (1 out of 10) the compositor is dark

xv problem: try playing some video with ffplay or kino
it magically unlocks xv.
On the other hand if mplayer will lock it again.

Sorry: I don't know what XV is, jet. But I'll try next time I'll get stuck.

Many thanks to Hermann and his detailed and complete answer.
I've studied Secrets of Cinelerra and Twiki for many many hours before
asking the community. Sometimes I had problem in understanding the real
meaning of words, that seem to have a technical meaning over the
standard dictionary one.

Post by Marcin Kostur

Post by Raffaella Traniello
1. Randomly (1 out of 10) the compositor is dark (no image, sound only). There are no disabled
buttons in the patch/control area.

This sounds strange, like a bug. To help more, it would be necessary to
know what media format you are using (DV-Avi, raw DV, quicktime, mpeg ts...).

I imported my media with Kino. I'm using Quicktime DV.

Post by Marcin Kostur

Post by Raffaella Traniello
2. Double clicking between two labels on the timeline doesn't highlights the region between the
labels. Instead it highlights the whole edit I'm clicking on.

Yes, that's the way cinelerra does this...
If you want to select the range between two lables: click at one lable
and then shift-click on the second. You could enter values into the
position-display in the status line as well in order to select a very
precise range (e.g. 3 Frames).

Your clicking doesn't work on my Cinelerra.
The Secrets of Cinelerra and the twiki says:
"Double-clicking between two labels highlights the region between the
labels".
And definitely this doesn't work for me.
But entring the values in the status line works great! Very clever and
usefull! Wow! Brilliant! Many thanks!
There are 3 values: what's the middle one?

Post by Marcin Kostur
And another very important command for editing is the "paste silence"
from the edit menu!!

Can it help me trimming?

Post by Marcin Kostur
Hint: you can move the locator by single frames using the numpad keys.

Sorry. Maybe I didn't understand: what do you mean with locator and with
numpad keys?

Post by Marcin Kostur

Post by Raffaella Traniello
4. Trimming: sometimes (randomly?) when i drag the margin of an edit in the video track the audio
track won't follow. All the tracks are armed. In this way I miss the match between audio and
video in the edits.

Make sure you have selected the "align cursor to frames" in the settings
menu. Cinelerra uses a trick to keep sync between audo and video: the
edit actions manipulate /all/ clips on all armed tracks
/which start at exactly the same position/. If you don't align cursor to frames,
then the audio clip can start on every location in between frames. You can see
this effect by zooming in to the level of single frames.

The "align cursor to frames" is selected from the beginning.

Thanks again

Ciao
Raffaella

[Marcin Kostur]

xv: http://en.wikipedia.org/wiki/X_video_extension

mk

[Raffaella Traniello]

Post by Marcin Kostur
xv: http://en.wikipedia.org/wiki/X_video_extension
mk

Now I understand. Thanks
Raffaella

[Ichthyostega]

Post by Raffaella Traniello
But entring the values in the status line works great! Very clever and
usefull! Wow! Brilliant! Many thanks!
There are 3 values: what's the middle one?

the middle one is the duration of the selected region IIRC

Post by Raffaella Traniello

Post by Ichthyostega
And another very important command for editing is the "paste silence"
from the edit menu!!

Can it help me trimming?

not directly, but indirectly yes:
- select a range, possibliy very precise by using the toolbar
- paste silence: moves all footage /after/ the current location
on all armed tracs to the left, so the selected range only
contains silence (or no video).

Post by Raffaella Traniello

Post by Ichthyostega
Hint: you can move the locator by single frames using the numpad keys.

Sorry. Maybe I didn't understand: what do you mean with locator and with
numpad keys?

"Locator" ist a not so common name for the "current position" or the "cursor"
or the "playhead position" on the timeline. Numpad= the numeric keys on the
right of the standard keyborad. See
http://www.ftconsult.com/twiki/bin/view/Cinelerra/TransportControls

For me, especially the "1" (frame forward) and "4" (frame back) are of much
use. When trimming, I navigate with this keys and then press the "l" to set
a label at the desired position. I can then use this label to actually
do the trim (as you have alredy noted, while trimming the update of the
image is not working correctly, so it is difficult to find the right cutting
location)

If you start moving in single frames, you will note a somewhat odd behaviour
of cinelerra. This is by intention of the original author (I myself find it
rather annoying and could thing of other conventions):
Cinelerra plays/displays a given frame, when the locator has /passed over/
the frame. Intuitively one would expect the playback to happen when the first
touches the frame (or still better, if the locator wasn't always placed on
locations between two frames, but in the middle of the frame)


Cheers,
Hermann

[Raffaella Traniello]

Thanks Hermann!

Post by Ichthyostega
Hint: you can move the locator by single frames using the numpad keys.

Wow! The keyboard shortcuts for playback transport are very very useful!

Post by Ichthyostega
If you start moving in single frames, you will note a somewhat odd behaviour
of cinelerra. This is by intention of the original author (I myself find it
Cinelerra plays/displays a given frame, when the locator has /passed over/
the frame. Intuitively one would expect the playback to happen when the first
touches the frame (or still better, if the locator wasn't always placed on
locations between two frames, but in the middle of the frame)

You are right: this behaviour is very odd. Frame x (junction of 2 edits) will show edit 1 when moving forward, edit 2 when moving backward. How can I act precisely?

Double clicking between two labels on the timeline does highlight the
region between the labels, even on my computer.
I discovered that "clicking between two labels" means also "exactly on
the timebar".

Post by Ichthyostega

Post by Raffaella Traniello
But entring the values in the status line works great! Very clever and
usefull! Wow! Brilliant! Many thanks!
There are 3 values: what's the middle one?

the middle one is the duration of the selected region IIRC

What do you mean with IIRC?

I have very important documentary footage with low quality sound (eg
wind noise...). Can Cinelerra help me improve it?

When I prewiew my work on the compositor I see very dirty junctions, not
smooth at all, with sound and video breaks. Is it the final quality?
I'm starting now to put video effects on my project.
I've heard about loss of video quality, but I'm quite shocked at seeing
it.
Is Cinelerra really a professional software? Do you use it for high
quality movies?
Did anyone ever compared Cinelerra to Adobe Premiere Pro?
I think I'm scared.... :-)

Thank you very much again.

Raffaella
Padova - Italy

[Ichthyostega]

When I prewiew my work on the compositor I see very dirty junctions, not smooth at all, with
sound and video breaks. Is it the final quality? I'm starting now to put video effects on my
project. I've heard about loss of video quality, but I'm quite shocked at seeing it.

Hello Raffaella,

I don't quite understand what you denote by "dirty junctions". Do you
mean transitions? Are you using the HV Version of cinellerra 2.0?

There was a severe problem with transitions which made the normal
dissolve transition almost useless. It caused flickering and arbritrary
colors in the image during the transition (as if the images were solarized).
This has been fixed in the CV-Version and definitively convinced me to
switch over at the beginning of this year.


As long as you don't render and re-introduce the rendered footage into
your project, there should be no generational quality loss, as all plugins
and effects are calculated on-the-fly based on your original footage.
Of course, some plugins can introduce artifactes (e.g. banding) for
some specific parameter values, but this is another storry.

Is Cinelerra really a professional software? Do you use it for high quality movies?

This question is somewhat difficult to answer. If you mean with
»professional« == "I paid a huge amount of mony and now I just have
to press the red button and automagically everything settles down, so I can
catch the tightest deadline" then -- cinelerra pobably is not professional
software ;-)

I am using it with the goal to produce high quality material. If you know
to avoid some possible glitches and pitfalls (and many of these are simple
a natural consequence of the way images and sound are processed) and --
morover -- figure out how to get things working as you expect, then cinelerra
can deliver all the quality you want

I think I'm scared.... :-)

I can tell you: I felt much more scared all the time I used Premiere;
there, I always had the feeling to be at the mercy of some big anonymous entity
and as if my being able to do what I inted and invent really doesn't count...

Did anyone ever compared Cinelerra to Adobe Premiere Pro?

Guess such comparision would be a very uneven comparison, PPro being fostered
by one of the bigest graphics/media companies, sold to a comparatively
high price level -- think at all the resources they can throw in...

Rather, the intersting question is: why are people not just
shouting and running away form cinelerra? The answer is:
it actually /is/ working for them, it helps us getting
done what we can imagine. You can tell this from looking at
this community: you see new names pop up, people asking the
first, shy newbee questions. Then you see the same people asking
more and more advanced questions, some of which you yourself
couldn't even imagine of, and at some point you see the same
people helping others knowledgeably...

Cheers,
Hermann V.

...sitting here in Munich, Germany late at night,
eager to try out the newest XaraLX 0.7 ....

[Raffaella Traniello]

Thanks Hermann. I'll try to explain my troubles better .

Post by Ichthyostega

When I prewiew my work on the compositor I see very dirty junctions, not smooth at all, with
sound and video breaks. Is it the final quality?

I don't quite understand what you denote by "dirty junctions". Do you
mean transitions? Are you using the HV Version of cinellerra 2.0?

I called "junction" the change from the last frame of an edit to the
first frame of the next edit. This change is not a smooth passage: there
is a fraction of time with no sound. It seems to be like a blank frame
(black or blue), too. But if I check it frame by frame, I can't see
anything wrong.
I'm now using Cinelerra 2.0 CV.

Post by Ichthyostega

I'm starting now to put video effects on my project. I've heard about
loss of video quality, but I'm quite shocked at seeing it.

There was a severe problem with transitions which made the normal
dissolve transition almost useless. It caused flickering and arbritrary
colors in the image during the transition (as if the images were solarized).
This has been fixed in the CV-Version and definitively convinced me to
switch over at the beginning of this year.

If I add a title on an image, I can see the blank frame effect at the
beginning of the title and a sudden change of brightness in the
compositor window, that become lighter for the length of the title.
I think it makes the movie unwatchable.
I see a similar change of brightness when I play and stop my project on
the timeline. The compositor window is lighter if I stop and becomes
darker playing. Which is the final brightness?

Thanks
Ciao
Raffella

[Ichthyostega]

If I add a title on an image, I can see the blank frame effect at the beginning of the title and
a sudden change of brightness in the compositor window, that become lighter for the length of the
title. I think it makes the movie unwatchable. I see a similar change of brightness when I play
and stop my project on the timeline. The compositor window is lighter if I stop and becomes
darker playing. Which is the final brightness?

Hello Raffaella,

I can observe this effect too in my setup. It ist caused by cinelerra
switching the output method to display the video. (Thats my conclusion,
maybe others can give a better explanation?).
Cinelerra does on every frame first an internal decission: can it output
direcly off the source material or need it be passed through the compositing
and effects engine? Morover there are different methods to display video: it
can be explicitely drawed to the output, or it can use a little bit of hardware
acceleration (X-XV).
I myself don't know to much of this and always wanted to find out some method
to get both display methods look similar on the monitor. But at the moment,
still images and the normal desktop are displayed in one flavour (a little bit
brighter and with lower gamma, maybe there is some gamma correction going on?),
wheras my accelerated display is a little bit darker and has larger gamma.

But this differences don't end up in the final rendered output.
To check the results, I am doing test renders of parts of my project in a
format I can play with the vlc media player (or with mplayer).

I use the following settings (geared at maximum quality playback on pc):

Container: Quicktime for Linux
Audio codec: 16bit linear PCM (signed = 2 complement)
Video codec: MPEG-4 Video
Bitrate: 25000000
Fixed Quantisation to 1
Keyframe Interval 1
(interlaced, because I have interlaced footage
and want to retain it interlaced)

To render a part of the timeline: select it, arm the necessary tracs and then
choose Render from Menu. It should display the process in the compositor.

I know this all is very complicated and you should experiment to find out a
combination workable for your setup. Other people reported of all sorts of
problems with MPEG-4

But I use it because I had very view problems and can play Quicktime/MPEG-4
with the least problems on my different media players.
And I use VLC becose for my setup it has the best handling of interlaced
material. With the deinterlace method "linear" I get smooth sharp HDV images
in fullscreen mode without any flicker, it looks as if vlc really creates more
then 25 frames on the display, while all other movie payers do a full de-interlace
and the material looks progressive. I know, movies shot on real film are progressive
and so progressive material looks a little bit more like "film", but I deliberately
choose the interlaced look, because I count the possibility of very smooth movements
and the possibility to shot on low light conditions with very unobstrusive artificial
lithting as the main strengths of video. And why fighting against the nature of the
medium?


Maybe someone can give other suggestions/better explanations
(and I am in a hurry at the moment....)

Cheers,
Hermann

[Raffaella Traniello]

Thanks Hermann.
Even if in a hurry you gave me many new subjects to work on.

I have to learn a lot about digital video.
I studying to understand interlacing.
Is my 3CCD mini DV camera footage interlaced?
How can I recognise it looking in the specifications table in the camera
manual?
What chance have I to use progressive scanned material?

Post by Ichthyostega
Container: Quicktime for Linux
Audio codec: 16bit linear PCM (signed = 2 complement)
Video codec: MPEG-4 Video
Bitrate: 25000000
Fixed Quantisation to 1
Keyframe Interval 1
(interlaced, because I have interlaced footage
and want to retain it interlaced)

Where do you set them?

Danke
Raffaella

[Ichthyostega]

Post by Raffaella Traniello
Thanks Hermann.
Even if in a hurry you gave me many new subjects to work on.
I have to learn a lot about digital video.
I studying to understand interlacing.
Is my 3CCD mini DV camera footage interlaced?

Currently, all TV is interlaced. Here in europ, TV uses the
PAL standard, which means "25i". This denotes 50 halfimages
per second corresponding to 25 full images per second.

Post by Raffaella Traniello
What chance have I to use progressive scanned material?

Some cameras provide a "progressive scan" mode. Another option
is allways, to de-interlace the matereial by software before
editing or after the final render.

Note that "interlaced" is not always "bad" and progressive is
not automatically "good". Each has its pros and cons. If you
want to play back your edited video on a normal TV at some point,
then interlaced may give a better quality, but if you only want
to watch on computers or distribute a low-bandwith version via
internet, then you are better off with progressive scan.

Of course, best would be, if we could have 50p always :-)

have you alredy found this page?
http://www.100fps.com/

Post by Raffaella Traniello
Where do you set them?

In the Render Window, there is a checkbox "Render Video tracks"
and "Render Audio tracks". Between the label and the Checkbox,
there is a "tool" Icon. Clicking this gives you the detail
selection dialogbox...

Cheers,
Hermann

[Marcin Kostur]

Hi interlacers,

and just to remind that cinerella produces pal DV with
wrong field order, according to advices on the mailing list
when i do DVD i encode video using a pipe, but works.

Marcn

[Raffaella Traniello]

Thanks Hermann for your explanation.

I didn't know the page http://www.100fps.com/ about
interlacing/deinterlacing.
It's very good. So clear I can even understand!
I spent few hours studying it.

Cheers,
Raffaella

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Post by Raffaella Traniello
Thanks Hermann.
Even if in a hurry you gave me many new subjects to work on.
I have to learn a lot about digital video.
I studying to understand interlacing.
Is my 3CCD mini DV camera footage interlaced?

Currently, all TV is interlaced. Here in europ, TV uses the
PAL standard, which means "25i". This denotes 50 halfimages
per second corresponding to 25 full images per second.

Post by Raffaella Traniello
What chance have I to use progressive scanned material?

Some cameras provide a "progressive scan" mode. Another option
is allways, to de-interlace the matereial by software before
editing or after the final render.
Note that "interlaced" is not always "bad" and progressive is
not automatically "good". Each has its pros and cons. If you
want to play back your edited video on a normal TV at some point,
then interlaced may give a better quality, but if you only want
to watch on computers or distribute a low-bandwith version via
internet, then you are better off with progressive scan.
Of course, best would be, if we could have 50p always :-)
have you alredy found this page?
http://www.100fps.com/

Post by Raffaella Traniello
Where do you set them?

In the Render Window, there is a checkbox "Render Video tracks"
and "Render Audio tracks". Between the label and the Checkbox,
there is a "tool" Icon. Clicking this gives you the detail
selection dialogbox...
Cheers,
Hermann
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[Andraž Tori]

Post by Raffaella Traniello
Thanks Hermann. I'll try to explain my troubles better .

Post by Ichthyostega

When I prewiew my work on the compositor I see very dirty junctions, not smooth at all, with
sound and video breaks. Is it the final quality?

I don't quite understand what you denote by "dirty junctions". Do you
mean transitions? Are you using the HV Version of cinellerra 2.0?

I called "junction" the change from the last frame of an edit to the
first frame of the next edit. This change is not a smooth passage: there
is a fraction of time with no sound. It seems to be like a blank frame
(black or blue), too. But if I check it frame by frame, I can't see
anything wrong.

blue color frame is due to switch between XV (accelerated) rendering and
plain X11 (unaccelerated) rendering. It will not be shown in final
render, so don't worry about it.

The sound problem is most probably due to not using "cursor on frames"
option.. go to preferences menu and select it ...
otherwise use crossfade to transfer ...

Post by Raffaella Traniello
I'm now using Cinelerra 2.0 CV.

bye
andra\

[Raffaella Traniello]

Thanks Andraz.
I'm relieved.
Raffaella

Post by Andraž Tori

Post by Raffaella Traniello
I called "junction" the change from the last frame of an edit to the
first frame of the next edit. This change is not a smooth passage: there
is a fraction of time with no sound. It seems to be like a blank frame
(black or blue), too. But if I check it frame by frame, I can't see
anything wrong.

blue color frame is due to switch between XV (accelerated) rendering and
plain X11 (unaccelerated) rendering. It will not be shown in final
render, so don't worry about it.
The sound problem is most probably due to not using "cursor on frames"
option.. go to preferences menu and select it ...
otherwise use crossfade to transfer ...

Post by Raffaella Traniello
I'm now using Cinelerra 2.0 CV.

bye
andra\
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[Leonardo]

Post by Raffaella Traniello
I have very important documentary footage with low quality
sound (eg
wind noise...). Can Cinelerra help me improve it?

Ciao Raffaella,
for the sound you can think of exporting it separately of the
video once the editing is complete in Cinelerra, and 'improve'
it on an application that's designed for audio editing, as for
example audacity: http://audacity.sourceforge.net/
It's easy to install in ubuntu, it's also preatty easy to be
used and it has a quite decent number of filters.

Ciao, Leo

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[Ichthyostega]

Post by Leonardo

Post by Raffaella Traniello
I have very important documentary footage with low quality
sound (eg wind noise...). Can Cinelerra help me improve it?

for the sound you can think of exporting it separately of the
video once the editing is complete in Cinelerra, and 'improve'
it on an application that's designed for audio editing, as for
example audacity: http://audacity.sourceforge.net/
It's easy to install in ubuntu, it's also preatty easy to be
used and it has a quite decent number of filters.

...and another hint: have a look at "Gnome Wave Cleaner"
(Debian/Ubunut package name is "gwc"). This is a free replacement
for the well known "Clean" program on Windows and can remove all
sort of background hiss, small clicks and pops etc.

Hermann V.

[Raffaella Traniello]

Grazie to Leo and danke to Hermann.

I have easily installed both Audacity and GWC. I will (less easily)
learn to use them effectively to improve the audio quality of my
footage.
Thanks
Raffaella