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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
--------
[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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