Awesome stuff, Vincent! Appreciate the time you've taken to set all of this up.

One comment: I did a poll on the Ubuntu G+ community, asking users whether they use the LTS ubuntu releases or the non-LTS. So far, over 1,090 people have voted, and a STAGGERING 71% use LTS releases on their primary machines (https://plus.google.com/+JesseDuBordFilms/posts/3VkkxrzCzZV). I might encourage support for the latest LTS release for Kdenlive PPA's, in both the new timeline ppa and the master ppa (seems like LTS support is already in stable ppa). Having packages for those LTS versions would expand the use of them, drastically, based on my findings.


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Today's Topics:

   1. Re: Hardware acceleration / vaapi (Vincent Pinon)
   2. PPA to test future 17.12 (timeline rewrite) (Vincent Pinon)
   3. Re: Hardware acceleration / vaapi (B.M.)
4. AW: PPA to test future 17.12 (timeline rewrite) (harald.albrecht)


----------------------------------------------------------------------

Message: 1
Date: Tue, 08 Aug 2017 14:31:13 +0200
From: Vincent Pinon <vpi...@kde.org>
To: kdenlive@kde.org
Subject: Re: Hardware acceleration / vaapi
Message-ID: <2475993.diM1DYiyZM@pad>
Content-Type: text/plain; charset="iso-8859-1"

Hello,

Note that you need to have FFmpeg built with vaapi or nvenc support, which is not the case of Debian package. I don't know what's needed for Intel, but for NVidia you have to download a SDK linked to closed-source driver, providing personal information: showstopper for me (and many packagers) :\

Please let us know of any progress on your side.

Evert, did you try to share your custom profiles using "HotNewStuff" function in Kdenlive? ;)

Vincent

Le mardi 8 août 2017, 12:47:31 CEST Evert Vorster a écrit :


Hi there, Bernd.



Kdenlive supports hardware encoding through custom encoding profiles.


This is my profile for hardware hevc encoding with nvidia:


properties=x265-medium f=matroska vcodec=hevc_nvenc acodec=aac crf=%quality ab=%audiobitrate+'k'


It would have been awesome if mlt and ffmpeg used the same format in command lines, but this is not the case. At least they are close.


Unfortunately I only have intel cards, so I cannot test the intel vaapi acelleration for you.


Kind regards,


On 8 August 2017 at 10:35, B.M. <b-m...@gmx.ch[1]> wrote:


Dear all,

After some years without I'm getting back to video editing... I already searched quite a lot but it's really hard to find "realiable" information, so I decided to ask here:

- It seems that hw accel is not available in kdenlive

- As far as I understand kdenlive uses mlt which uses ffmpeg. ffpmeg can use hardware acceleration for de- and encoding. So is mlt to "blame" for missing hw accel. in kdenlive?

- There has been a patch (bug 378832) "use of vaapi in transcoding and rendering" which seems to tackle my question. But what did it really change -/ what is it for? I didn't find more info on that and it's in kdenlive 17.04, while Debian is at 16.12. and before I compile myself I'd like to get more info.

- Furthermore I found a thread on this list back in April "kdenlive and mlt nvenc enabled" covering the same topic but for nvidia instead of Intel graphics; unfortunately nobody reported back if it really works. For me it reads like the patch I mentioned above.

So regarding the current state of hw accel in kdenlive I'm still uncertain.

Thank you for your inputs.

Kind regardsBernd


Evert VorsterIsometrix Acquistion Superchief






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[1] mailto:b-m...@gmx.ch
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Message: 2
Date: Tue, 08 Aug 2017 14:47:14 +0200
From: Vincent Pinon <vpi...@kde.org>
To: kdenlive@kde.org
Subject: PPA to test future 17.12 (timeline rewrite)
Message-ID: <15023171.3DjirpVA1A@pad>
Content-Type: text/plain; charset="us-ascii"

Hello,

I've finally finished the setup of a new PPA to test the future Kdenlive 17.12 version, containing a "kdenlive-test" package that can coexist with a normal "kdenlive" package (17.04 or 17.08)...
ppa:kdenlive/kdenlive-17.12preview

The build lives in /opt/kdenlive-test
I forgot to install an icon to a standard path, so you have to create one or run the command: /opt/kdenlive-test/bin/kdenlive

As usual, I publish quickly before testing seriously, so be prepared for deception :-p Don't hesitate to send me your remarks, and if you find it interesting, I let you share the info on your networks (reminding this is experimental software)...

Vincent.


------------------------------

Message: 3
Date: Tue, 08 Aug 2017 14:50:15 +0200
From: "B.M." <b-m...@gmx.ch>
To: kdenlive@kde.org
Subject: Re: Hardware acceleration / vaapi
Message-ID: <cc524659-61e8-4783-8ccc-5263e3e45...@gmx.ch>
Content-Type: text/plain; charset="utf-8"

Hi all,

Well so I can expect hw accel for ENcoding to work. What's about DEcoding? Can that be enabled as well?

Is it correct that direct raw copying (no de- and re-encoding) is not possible? Would be soooo nice (speedup & image quality) for all the clips which rest unchanged! I know that this is a missing feature on the mlt side; having a background in programming myself I know how ugly a workaround can be, but: did you dev's discuss that in the past? As I said, only for unchanged clips (I have 4K editing in mind...)

Best,
Bernd

PS: I will see how to compile ffmpeg with hw accel enabled.

Am 8. August 2017 14:31:13 MESZ schrieb Vincent Pinon <vpi...@kde.org>:
Hello,

Note that you need to have FFmpeg built with vaapi or nvenc support,
which is not the case of Debian package.
I don't know what's needed for Intel, but for NVidia you have to
download a SDK linked to closed-source driver, providing personal
information: showstopper for me (and many packagers) :\

Please let us know of any progress on your side.

Evert, did you try to share your custom profiles using "HotNewStuff"
function in Kdenlive? ;)

Vincent

Le mardi 8 août 2017, 12:47:31 CEST Evert Vorster a écrit :


Hi there, Bernd.



Kdenlive supports hardware encoding through custom encoding profiles.


This is my profile for hardware hevc encoding with nvidia:


properties=x265-medium f=matroska vcodec=hevc_nvenc acodec=aac
crf=%quality ab=%audiobitrate+'k'


It would have been awesome if mlt and ffmpeg used the same format in
command lines, but this is not the case. At least they are close.


Unfortunately I only have intel cards, so I cannot test the intel vaapi
acelleration for you.


Kind regards,


On 8 August 2017 at 10:35, B.M. <b-m...@gmx.ch[1]> wrote:


Dear all,

After some years without I'm getting back to video editing... I already
searched quite a lot but it's really hard to find "realiable"
information, so I decided to ask here:

- It seems that hw accel is not available in kdenlive

- As far as I understand kdenlive uses mlt which uses ffmpeg. ffpmeg
can use hardware acceleration for de- and encoding. So is mlt to
"blame" for missing hw accel. in kdenlive?

- There has been a patch (bug 378832) "use of vaapi in transcoding and
rendering" which seems to tackle my question. But what did it really
change -/ what is it for? I didn't find more info on that and it's in
kdenlive 17.04, while Debian is at 16.12. and before I compile myself
I'd like to get more info.

- Furthermore I found a thread on this list back in April "kdenlive and
mlt nvenc enabled" covering the same topic but for nvidia instead of
Intel graphics; unfortunately nobody reported back if it really works.
For me it reads like the patch I mentioned above.

So regarding the current state of hw accel in kdenlive I'm still
uncertain.

Thank you for your inputs.

Kind regardsBernd


Evert VorsterIsometrix Acquistion Superchief






--------
[1] mailto:b-m...@gmx.ch

--
Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.
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Message: 4
Date: Tue, 08 Aug 2017 15:04:54 +0200
From: "harald.albrecht" <harald.albre...@gmx.net>
To: Vincent Pinon <vpi...@kde.org>, kdenlive@kde.org
Subject: AW: PPA to test future 17.12 (timeline rewrite)
Message-ID: <pwd3l2eqiwvbo91fsmwimotx.1502197494...@email.android.com>
Content-Type: text/plain; charset="utf-8"

+100

-------- Ursprüngliche Nachricht --------
Von: Vincent Pinon <vpi...@kde.org>
Datum: 08.08.17  14:47  (GMT+01:00)
An: kdenlive@kde.org
Betreff: PPA to test future 17.12 (timeline rewrite)

Hello,

I've finally finished the setup of a new PPA to test the future Kdenlive 17.12 version, containing a "kdenlive-test" package that can coexist with a normal "kdenlive" package (17.04 or 17.08)...
ppa:kdenlive/kdenlive-17.12preview

The build lives in /opt/kdenlive-test
I forgot to install an icon to a standard path, so you have to create one or run the command: /opt/kdenlive-test/bin/kdenlive

As usual, I publish quickly before testing seriously, so be prepared for deception :-p Don't hesitate to send me your remarks, and if you find it interesting, I let you share the info on your networks (reminding this is experimental software)...

Vincent.
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