Re: [Mlt-devel] Audio out-of-sync in SDL consumer when using PNG producer

On Tue, Nov 28, 2023 at 12:48 PM Iza i Tomek wrote: > I use melt 7.4.0, which came with my Linux Mint. > > I'm not sure whether I found a bug, a feature ;-) but I found it > very strange. > > I use MLT with XML (mlt) files, and some presents in dv_custom file. > What exactly is "dv_custom"

Re: [Mlt-devel] Running mlt++ without the x11

On Wed, Nov 22, 2023 at 7:45 AM Paweł Mruzek wrote: > Hello, > I was wondering, if it's possible to perform video > editing programmatically with mlt++ without the need for tools > like xvfb-run to run the app? I believe melt can be built without the qt > plugins, that seem to be causing the

Re: [Mlt-devel] Fwd: Bug#1051570: mlt: FTBFS with RtAudio 6

Fixed in git, supports old (4) and new versions. See also https://github.com/mltframework/mlt/issues/930 On Thu, Oct 12, 2023 at 6:34 AM Patrick Matthäi via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > Hello, > > I have got this patch for RTAudio 6 "support" (not tested, but it builds

Re: [Mlt-devel] SDL consumer framerate?

On Sun, Sep 24, 2023 at 10:59 AM Iza i Tomek wrote: > Is it possible to force a particular framerate for sdl consumer? > Yes, using consumer properties https://www.mltframework.org/doxygen/properties.html or a profile https://mltframework.org/docs/profiles/ > > My original problem is: I have

Re: [Mlt-devel] Fwd: Bug#1041664: mlt: FTBFS with ffmpeg 6.0

On Tue, Jul 25, 2023 at 9:05 AM Patrick Matthäi via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > Hey, > is this known, that there are problems with ffmpeg 6.0? Looks more like > something with the Python module does not work then > > MLT v7.6 or later is required for FFmpeg 6. Otherwise,

Re: [Mlt-devel] Problem with sound when exporting playlist with blanks

"transparent" is not a valid color name: See https://mltframework.org/plugins/ProducerColor/ It just so happens to work though since it tries to convert the string to an int resulting in 0, which is equivalent. The higher order track gets priority when using multitrack, and there is no automatic

Re: [Mlt-devel] How can you detect when an avformat consumer fails?

You can receive the event in Python, but the arguments are useless with special SWIG binding definition. Flowblade uses MLT python binding. You should consult its code for advice. The regular MLT developers have very little experience with it. On Sat, Jul 22, 2023 at 1:00 PM Rickard Lindberg

Re: [Mlt-devel] Recent regression related to audio playback

On Tue, Feb 7, 2023 at 8:54 AM Jean-Baptiste Mardelle wrote: > Hi all, > > Several users reported problematic playback behavior (freeze on seek) > lately > in Kdenlive. Seems like it is related to a recent MLT commit: > fix #860 audio distortion when starting playback >

Re: [Mlt-devel] Need guidance in implementing mlt

On Sun, Jan 22, 2023 at 7:07 AM Ashish Kumar wrote: > See, what I have done the following steps on my macOS: > > -> brew install cmake > -> brew install melt > -> cloned this repository https://github.com/mltframework/mlt > > Now for these java bindings to work, should I run the code directly in

Re: [Mlt-devel] cairoblend and qtblend regressions

On Thu, Nov 17, 2022 at 8:49 AM Jean-Baptiste Mardelle wrote: > On Mittwoch, 16. November 2022 10:27:52 CET Dan Dennedy wrote: > > On Wed, Nov 16, 2022 at 4:20 PM Julius Künzel > > > > wrote: > > Hi, > > > > there is also https://github.com/mltframewo

Re: [Mlt-devel] cairoblend and qtblend regressions

On Wed, Nov 16, 2022 at 4:20 PM Julius Künzel wrote: > Hi, > > there is also https://github.com/mltframework/mlt/pull/840 worth to > consider for such a bug fix release. > That is untested and unconfirmed. Also, cairoblend was reverted before release. Just saw the qtblend commit from a couple

Re: [Mlt-devel] Problem building mlt 7.10.0

On Wed, Nov 9, 2022 at 9:28 PM Patrick Matthäi wrote: > > Am 09.11.2022 um 14:44 schrieb Dan Dennedy: > > On Wed, Nov 9, 2022 at 5:27 AM Patrick Matthäi via Mlt-devel > > wrote: > >> Hello, > >> > >> I have got problems buildin

Re: [Mlt-devel] Problem building mlt 7.10.0

On Wed, Nov 9, 2022 at 5:27 AM Patrick Matthäi via Mlt-devel wrote: > > Hello, > > I have got problems building mlt 7.10.0 on current Debian sid. It aborts > with: > > -- Found SWIG: /usr/bin/swig4.0 (found version "4.1.0") > -- Found Python3: /usr/bin/python3.10 (found version "3.10.8") found >

Re: [Mlt-devel] Question about how to change the output frame number in shotcut editor

On Tue, Sep 13, 2022 at 11:07 AM 李奥杰 wrote: > > Dear Sir/Madam, > I am a researcher working on video enhancement and I found the mlt > framework and shotcut editor really useful for video editing. Recently I'm > trying to add my own filters for frame interpolation to mlt and shotcut, >

Re: [Mlt-devel] optimizing MLT's track compositing

On Sat, Sep 3, 2022 at 11:57 AM Brian Matherly via Mlt-devel wrote: > > Thanks for investigating this topic. Here are some comments from me: > > 1) I support an attempt to reduce unnecessary image format conversions. Your > focus is on track compositing. But it would also be good if we could

Re: [Mlt-devel] scale parameter ignored on commandline

On Fri, May 6, 2022 at 9:54 AM Thomas Eimers wrote: > Hello, > > I am using preview scaling with melt using the command line. > > This works, if the scale setting is part of the XML-File and the melt > command has no consumer parameter. > > For example, `melt input.mlt` with an XML

Re: [Mlt-devel] Have added an SR filter, but exported video can be incorrect

On Tue, May 3, 2022 at 7:34 AM Michael Ren wrote: > Thanks for your kind reply. In my scenario, a user may randomly try to > apply a filter to an opened video. If the filter is SR, it means that the > user needs better resolution of the video (not just linear interpolation). > The decision is on

Re: [Mlt-devel] MSVC build

The road map is mostly wishes and guesswork especially beyond MLT 7. The main focus of the remainder of MLT 7 is completion of existing things. There is no technical reason for the positioning of MSVC, and someone is free to get it working for MLT 7.

Re: [Mlt-devel] Stacking videos vertically

newProfile("hdv_720_50p") > var v1 = p.newMedia("./resources/big_buck_bunny_720p_2mb.mp4") > var v2 = p.newMedia("./resources/big_buck_bunny_720p_2mb.mp4") > > var (newProducer, profile) = stackVertically( v1,v2 ) > > # Consumer > var sdl = profile.n

Re: [Mlt-devel] Stacking videos vertically

On Wed, Jan 5, 2022 at 9:22 AM José María García Pérez < josemaria.alk...@gmail.com> wrote: > What is the proper way of stacking videos vertically? > > For example: >video1 >- >video2 > > so that I can later scale it and move it around in the profile. > > Right now I am using

Re: [Mlt-devel] Does affine transition.rotate_x work?

On Sat, Jan 1, 2022 at 2:20 PM José María García Pérez < josemaria.alk...@gmail.com> wrote: > I tried the following: > $ melt -proifle hdv_720_50p -consumer sdl2 +hello.txt -attach affine > transition.rotate_x="0=0;100=340" > > I was expecting to get a rotation animation. > > That property

Re: [Mlt-devel] Filter affine

gt;>>> var sdl = newFactoryConsumer(p, "sdl2") >>>> >>>> sdl["terminate_on_pause"] = 1 # Stop the consumer when finished >>>> >>>> # Create via the default producer >>>> var clip1 = p.newMedia( "./resources/sygi

Re: [Mlt-devel] Filter affine

You can use a tool like Shotcut and study it’s XML output to understand the properties for a filter. The affine filter is called Size, Position & Rotate. To get the XML use File > Save. On Thu, Dec 30, 2021 at 9:47 AM José María García Pérez < josemaria.alk...@gmail.com> wrote: > I don't

Re: [Mlt-devel] pixbuf

You have not included any pixel format or color space converter, and sdl2 does not support rgb. By specifying the producer class as an argument you bypass the loader producer, which is special. On Tue, Dec 28, 2021 at 11:01 AM José María García Pérez < josemaria.alk...@gmail.com> wrote: > I am

Re: [Mlt-devel] Nim bindings

ack scenarios - attaching to clips, consumer, and playlists that represent tracks. > ``` > clip.attach( filter ) > clip > sdl > ``` > > https://github.com/mantielero/mlt.nim/blob/master/examples/ex05_filter_frei0r_attach.nim > > > PS: sorry if the wording is not right. I am not

Re: [Mlt-devel] Problem with mlt_consumer_is_stopped

On Sat, Nov 20, 2021 at 11:35 AM José María García Pérez < josemaria.alk...@gmail.com> wrote: > With the following example: > I never get the `mlt_consumer_is_stopped` set to True. The played video > finishes but the exit condition for the while loop is never reached. > > Why is that? > The end

Re: [Mlt-devel] Nim bindings

Thanks for sharing that. Read more below... On Sat, Nov 20, 2021 at 8:54 AM José María García Pérez < josemaria.alk...@gmail.com> wrote: > I implemented some examples in the Nim programming language. Nim compiles > into C (among other languages). > > I like that it gives you the feeling of

Re: [Mlt-devel] C lang examples

It is preferable that bindings are made with the MLT C++ interface. If possible, then see also the unit tests in src/tests/ in the source tree. On Sat, Nov 13, 2021 at 12:02 PM Brian Matherly via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > I think you have been reading the

Re: [Mlt-devel] Suggestion: declaring "const functions".

On Tue, Oct 26, 2021 at 8:04 AM Andre Caldas wrote: > It would be very nice, IMO, if functions like > "mlt_producer_get_length(mlt_producer self)" were declared in such a > way that "self" points to a "const". > > I find "const" correctness a very useful concept. I guess that users > It is on

Re: [Mlt-devel] DTD: add properties to entries?

On Wed, Aug 25, 2021 at 3:18 PM amin...@mailbox.org wrote: > --- a/src/modules/xml/mlt-xml.dtd > +++ b/src/modules/xml/mlt-xml.dtd > @@ -77,7 +77,7 @@ > out CDATA#IMPLIED > titleCDATA#IMPLIED > > > - | transition | chain)* > > +

Re: [Mlt-devel] Clock time to frame number?

On Tue, Aug 24, 2021 at 6:06 PM amindfv--- via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > Thank you, this is exactly the type of clear answer I was hoping for! > > A couple follow-up questions: > > - I seem to be able to, with the calculation on line 371 linked below, > get

Re: [Mlt-devel] It's hard to work without information

On Mon, Aug 16, 2021 at 6:38 AM Spielmops wrote: > I want to use an audio-filter with Kdenlive. So I put the treble-filter > onto my audio and see the effects parameter. No clue, what these parameters > want. A frequency-parameter "a.frequency" with a range up to 1 Mio.? And > another one "a.f"

Re: [Mlt-devel] Python bindings and filters.

On Sun, Aug 15, 2021 at 3:05 PM Andre Caldas wrote: > Hello! > > I was writing a frei0r mixer2. I did it, but then I realized that it > would be better if I wrote a native MLT filter. If possible, I would > like to write it in python. > > So, I would like to ask a question! > - Can I use python

Re: [Mlt-devel] DTD: add properties to entries?

On Sun, Aug 15, 2021 at 1:02 PM amindfv--- via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > More recent versions of Kdenlive are putting properties in entries. For > example: > > > 2 > > > > and: > > > 2 > 1 > > ... > > This technically isn't part

Re: [Mlt-devel] How to register a frei0r plugin.

On Sat, Aug 14, 2021 at 11:24 AM Andre Caldas wrote: > Dear developers, > > I have written a frei0r plugin. It is a frei0r::mixer2 class. I have > compiled it and produced a ".so" file. > > How do I register it (locally: ~/.local/share/...) with MLT? > > You need to install the so to an

Re: [Mlt-devel] Future of higher bit depth/dynamic range/etc

On Mon, Apr 19, 2021 at 9:29 PM amindfv--- via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > Pull request #634 ("avformat producer: 10- and 16-bit color support") has > been closed as invalid on Github. Is this simply because the PR's becoming > stale, or does it mean MLT's going in a

Re: [Mlt-devel] Playing remote files is broken and crashes

Thanks JB, you are correct! I will make a v6.26.1 release for this. On Tue, Apr 13, 2021 at 9:23 AM Jean-Baptiste Mardelle wrote: > Hi all, > > I just wanted to let you know I just discovered that playing remote files > does > not work anymore with MLT and results in a crash, due to this

[Mlt-devel] MLT v6.26.0 release soon

I plan to release the next version of MLT this weekend April 10 or 11. This is the last planned release of major version 6. After that I will make a v6 branch and merge the v7 branch into master. We can still make another v6 release if something critical is needed. Just a head's up.

[Mlt-devel] MLT version 7 plans

Brian has been working on time effects (i.e. keyframes for speed and direction) for a good while now, and a couple of months ago I realized it requires breaking the API. So, if we are going to break the API I want to make some other changes we can live with for a little while. However, considering

Re: [Mlt-devel] Problem with crop

melt and the xml module require using the loader producer. The loader producer is very special and chooses which real producer to use based on the resource string - configured in loader.dict - as well as adding what we call normalization (aka conform) filters - configured in loader.ini. Extremely

Re: [Mlt-devel] Some issues with the strobe filter

On Mon, Jan 11, 2021 at 3:27 PM jb wrote: > Hi all, > > The strobe filter, recently added, seems to have a few issues, that I'd > like to bring up so that we can either fix or blacklist it in Kdenlive: > > 1- It does not explicitly ask for the mlt_image_rgb24a image format, but > only processes

Re: [Mlt-devel] future of frame-threading in MLT

On Tue, Dec 8, 2020 at 7:14 PM Brian Matherly wrote: > > > As a reminder, frame threading is when > > abs(consumer.get_int("real_time")) > 1. There are some problems with it. > > 1. sometimes there is a crash > > 2. image artifacts due to race conditions > > I think that the main reason for this

[Mlt-devel] future of frame-threading in MLT

In a pull request, Vincent raised an interesting point regarding frame-threading in MLT: https://github.com/mltframework/mlt/pull/621#issuecomment-741087704 As a reminder, frame threading is when abs(consumer.get_int("real_time")) > 1. There are some problems with it. 1. sometimes there is a

Re: [Mlt-devel] mlt api changed in 6.22?

On Tue, Nov 10, 2020 at 4:41 PM Rafał Lalik wrote: > Hi, > > somewhere around mlt-6.6 (3y ago) I developed my custom effect for > typewriting > which I use with kdenlive. Last time I used it in September I think and it > worked fine, but now, having mlt-6.22 it does not work anymore. > > So I

Re: [Mlt-devel] How to view simultaneously unprocessed frames and processed ones in two X windows?

On Fri, Oct 9, 2020 at 10:19 PM linux...@tin.it wrote: > Hi all. I am writing a basic video editor based on MLT. At the moment, > > I use an mlt_playlist, which lets me append video files, break them in > clips, and connect different filters to different clips. So far so > good, I appreciate >

Re: [Mlt-devel] XML DTD tweak?

On Fri, Oct 9, 2020 at 5:22 PM amindfv--- via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > In src/modules/xml/mlt-xml.dtd, playlists are described as having at least > 1 item in them (because of the '+' at the end): > > tractor | multitrack)+) > > > However, by default kdenlive

Re: [Mlt-devel] avformat consumer duplicating last frame

On Tue, Oct 6, 2020 at 1:15 AM jb wrote: > Hi all, > > > While working on a Kdenlive rendering issue, I noticed that the avformat > consumer duplicates the last frame on encoding. So the resulting file is > 1 frame longer than wanted. > > This is easily reproducible with: > > melt color:red

Re: [Mlt-devel] 10-bit color?

On Sun, Sep 13, 2020 at 9:00 AM amin...@mailbox.org wrote: > > On Thu, Jul 30, 2020 at 3:09 PM Tom Murphy wrote: > > > > > > According to ffprobe, the input video has colorspace 'yuv420p10le' > > > > (i.e. 10-bit video), but the output is only 'yuv420p'. So it does > > > > appear somewhere in

Re: [Mlt-devel] Fwd: Bug#967633: mlt: depends on deprecated GTK 2

On Tue, Aug 4, 2020 at 9:12 AM Patrick Matthäi wrote: > Hi Dan, > > any doubts about deactivating gtk2? It is also marked as deprecated > (src/modules/gtk2/deprecated) > Deprecation is deactivation in the MLT configure script. For the latest release you must remove that file to activate that

Re: [Mlt-devel] 10-bit color?

On Thu, Jul 30, 2020 at 3:09 PM Tom Murphy wrote: > > According to ffprobe, the input video has colorspace 'yuv420p10le' > > (i.e. 10-bit video), but the output is only 'yuv420p'. So it does > > appear somewhere in the pipeline it's being downgraded to 8-bit? (Or > > that there's a default 8-bit

Re: [Mlt-devel] Mlt::Properties pass_list not triggering property-changed

On Mon, Jul 27, 2020 at 6:15 PM Dan Dennedy wrote: > JB, I want to revert your change here temporarily and make a release. It > is time to make a new release, but this change is too fundamental to > include in a release right now. Then, I would restore the change after > release.

Re: [Mlt-devel] Mlt::Properties pass_list not triggering property-changed

JB, I want to revert your change here temporarily and make a release. It is time to make a new release, but this change is too fundamental to include in a release right now. Then, I would restore the change after release. Do you agree? On Fri, Jul 24, 2020 at 7:48 PM Dan Dennedy wrote

Re: [Mlt-devel] Mlt::Properties pass_list not triggering property-changed

On Fri, Jul 24, 2020 at 1:36 PM jb wrote: > Hi all, > > Looking at a timewarp producer issue in Kdenlive, I noticed that the MLT > properties method "mlt_properties_pass_list" does not trigger a "property- > changed" event. > > In Kdenlive, we use this "mlt_properties_pass_list" method to pass

Re: [Mlt-devel] State of custom GLSL?

iven to Movit. I would stay away from trying to actually integrate with Movit itself for a generic shader and only use some more standalone functions of GlslManager (or code snippets). You should also take a look at filter_movit_convert.cpp to see how to integrate the image I/O with MLT. El 30 may

Re: [Mlt-devel] State of custom GLSL?

On Sat, May 30, 2020 at 10:49 AM wrote: > Hi all - what's the current state of running custom GLSL shaders for > effects and transitions in MLT? In 2017 it appears it wasn't supported, at > least using Movit. > > Specifically, I'd like to write shaders that take frames from multiple > producers

Re: [Mlt-devel] processing stops after 15,000 frames

On Sun, May 10, 2020 at 5:18 PM Mark Polesky via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > Hi, I tried to create a minimal video 20,000 frames long (should be 11min > 7sec at 30fps), but melt stopped processing after 14,999 frames (leaving it > 8min 20sec). Am I doing something wrong?

Re: [Mlt-devel] reducing xml filesizes with repetitive filters

On Sun, May 10, 2020 at 1:10 AM Mark Polesky via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > Hi, > > I asked this question on stackoverflow a few days ago. Thought I'd hit up > the mailing list to see if I might get a bite here: > https://stackoverflow.com/questions/61628423/ > > =

Re: [Mlt-devel] Crash in transition_mix

On Thu, Feb 27, 2020 at 5:03 AM jb wrote: > Hi all, > > > Following a Kdenlive's bug report, I reproducer a crash in transition_mix > when using a "consumer" producer is inserted in a playlist, if that > producer has a different fps than current project. > > > Problem is that in

Re: [Mlt-devel] New MLT release in March ?

MLT version 6.20.0 and WebVfx 1.2.0 have been released. On Mon, Feb 10, 2020 at 12:00 AM Jean-Baptiste Mardelle wrote: > Hi all, > > > We have a dependency freeze for Kdenlive in 4 weeks (on the 12th of > March 2020). > > It would be very nice to have an MLT release around that date so that we

Re: [Mlt-devel] GPU transcode possible?

On Wed, Jan 29, 2020 at 9:31 AM Paul wrote: > Hi > > is it possible to have the complete decoding and encoding done on the > GPU instead on the CPU? > No, hardware accelerated decoding is not integrated. > I found various examples for Kdenlive encoding with my nvidia gpu with > this command:

Re: [Mlt-devel] Issue with new consumer scaling feature

On Sat, Jan 18, 2020 at 3:04 PM Dan Dennedy wrote: > On Fri, Jan 17, 2020 at 12:59 AM jb wrote: > >> Hi Dan, all, >> >> First, thanks a lot for implementing the much anticipated consumer >> scaling >> feature! Nice way to do it! While testing it, I n

Re: [Mlt-devel] Issue with new consumer scaling feature

On Fri, Jan 17, 2020 at 12:59 AM jb wrote: > Hi Dan, all, > > First, thanks a lot for implementing the much anticipated consumer scaling > feature! Nice way to do it! While testing it, I noticed a problem with > transitions. > > It seems like the "consumer_scale" property is not always properly

Re: [Mlt-devel] 6.18.0 fails to build on some architectures

On Mon, Dec 30, 2019 at 1:16 AM John Paul Adrian Glaubitz < glaub...@physik.fu-berlin.de> wrote: > Hi! > > On 12/30/19 9:55 AM, Patrick Matthäi wrote: > > Ok the attached patch works fine :) > > > > Can you please push this patch to your repo?: > > > > > > diff -Naur

Re: [Mlt-devel] 6.18.0 fails to build on some architectures

On Tue, Dec 17, 2019 at 5:32 AM Patrick Matthäi wrote: > Hi > > Am 22.11.2019 um 21:24 schrieb Dan Dennedy: > > On Wed, Nov 20, 2019 at 7:23 AM Patrick Matthäi > wrote: > >> Hi, > >> > >> I just uploaded 6.18.0, but it FTBFS on some architectures

Re: [Mlt-devel] 6.18.0 fails to build on some architectures

On Fri, Nov 22, 2019 at 12:24 PM Dan Dennedy wrote: > > On Wed, Nov 20, 2019 at 7:23 AM Patrick Matthäi wrote: > > > > Hi, > > > > I just uploaded 6.18.0, but it FTBFS on some architectures like armel, > > mipsel etc: > > Can you please test the attache

Re: [Mlt-devel] 6.18.0 fails to build on some architectures

On Wed, Nov 20, 2019 at 7:23 AM Patrick Matthäi wrote: > > Hi, > > I just uploaded 6.18.0, but it FTBFS on some architectures like armel, mipsel > etc: Can you please test the attached patch? diff --git a/src/modules/avformat/producer_avformat.c b/src/modules/avformat/producer_avformat.c index

[Mlt-devel] version 6.18.0 released

https://github.com/mltframework/mlt/releases/tag/v6.18.0 -- +-DRD-+ ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel

Re: [Mlt-devel] Next MLT release?

I will aim for Nov 11. On Sat, Nov 2, 2019 at 8:21 AM Dan Dennedy wrote: > I am on a vacation until Nov 6 and then have a couple other things to look > into including the one you mentioned. So, it will not be 7 - 10 days. > Yesterday, I set the GitHub milestone date f

Re: [Mlt-devel] Next MLT release?

I am on a vacation until Nov 6 and then have a couple other things to look into including the one you mentioned. So, it will not be 7 - 10 days. Yesterday, I set the GitHub milestone date for dec 12, but it will probably be sooner. On Fri, Nov 1, 2019 at 10:27 PM jb wrote: > Hi Dan, all, > > We

Re: [Mlt-devel] Build mlt with Python 3

there is no install make target for them. So, I applied the patch, and if some thing still needs python2, they can patch it for their build. Thanks On Wed, Sep 18, 2019 at 1:01 AM Patrick Matthäi wrote: > Am 02.09.2019 um 22:57 schrieb Dan Dennedy: > > AFAIK "python3" is not a standard name

Re: [Mlt-devel] RAM guidelines?

On Wed, Sep 11, 2019 at 6:00 AM Brian Matherly via Mlt-devel < mlt-devel@lists.sourceforge.net> wrote: > > On Wednesday, September 11, 2019, 12:35:03 AM CDT, Kingsley G. Morse Jr. > wrote: > > > > > > Can you suggest a reasonable amount of RAM for a > > 64 bit computer, so it can edit videos

Re: [Mlt-devel] Did you intend to call mlt_frame.c:620 recursively?

This is normal looking and not recursive. It is impossible to call mlt_frame_get_image() only once on the stack unless you are making a custom media player. You are not running out of memory on the stack with a call depth of only 53. If you had made a project that includes itself, then it would

Re: [Mlt-devel] Build mlt with Python 3

AFAIK "python3" is not a standard name for the executable any may not be available on a python 3 only system. The patch needs to be backwards compatible and use python3 if available and just "python" otherwise. On Mon, Sep 2, 2019 at 5:55 AM Janne Liljeblad wrote: > I just got Flowblade

Re: [Mlt-devel] Bug#934590: libmlt-data: The package became bloated

Just a quick update to mention that this change has been committed to git master for next release, which will come before the end of the year. On Tue, Aug 13, 2019 at 2:53 PM Горбешко Богдан wrote: > On 13.08.2019 22:22, Dan Dennedy wrote: > > On Mon, Aug 12, 2019 at 5:27 AM Patric

Re: [Mlt-devel] Bug#934590: libmlt-data: The package became bloated

On Mon, Aug 12, 2019 at 5:27 AM Patrick Matthäi wrote: > Am 12.08.2019 um 13:11 schrieb Горбешко Богдан: > > Package: libmlt-data > > Version: 6.16.0-3 > > Severity: minor > > > > Dear Maintainer, > > > > After the last upgrade, the package became about 230 MBs larger, > > because of a lot of

Re: [Mlt-devel] Is melt the right thing for realtime switching/mixing live sources?

On Wed, Jun 26, 2019 at 1:23 PM Anatoly wrote: > Hello, > I am faced with a need in opensourced software video switcher engine. I > need not any GUI at all, because I'm planning to attach hardware > console to control it. > I briefly read some docs and take a quick look at examples, they >

Re: [Mlt-devel] New MLT release?

Sure, I will make a new release within a couple of weeks. On Mon, Mar 11, 2019 at 12:56 AM Jean-Baptiste Mardelle wrote: > Hi Dan, all. > > > As you might know, we are finally planning to release Kdenlive's big > rewrite. We are beginning the countdown, and it would be nice to have a > new

Re: [Mlt-devel] Video luma argument?

On Wed, Feb 20, 2019 at 10:07 PM wrote: > Apologies in advance for a semi-novice question: > > I'm looking for a way to achieve something like the luma transition, but > using a greyscale video instead of a PGM file for the luma map file. > > The first frame of the greyscale video will be all

Re: [Mlt-devel] Playback DNG/TIFF files

For TIFF, something like "melt imgseq/%04d.tiff ttl=25 where the 4 in "%04d" is the number of digits used in your sequence file names and 25 is the number of frames to repeat each image. I do not think there is anything to read DNG. MLT's image sequence support uses either Qt or GDK pixbuf for

Re: [Mlt-devel] Best video format(s) for realtime melt?

On Fri, Dec 7, 2018 at 11:55 AM Tom Murphy wrote: > Ah, and another criterion I forgot but could be important is the > ability to quickly seek / jump around in a melt video. > > Some people in the Shotcut forum working on proxy and intermediate file workflows seem mostly impressed with the Ut

Re: [Mlt-devel] melt: add support for consumer in/out

On Fri, Dec 7, 2018 at 11:27 AM jb wrote: > Hi, > > In shotcut, the tag is used in the playlist's xml to pass > consumer > arguments, allowing to render a playlist file with melt whitout passing > extra > arguments. > > I am considering using the same approach for Kdenlive, but there is one >

Re: [Mlt-devel] frame count / cut

On Thu, Aug 30, 2018 at 9:35 AM Joel Nash wrote: > As I'm editing film on the RPI melt doesn't yet playback smoothly so > instead, I use omxplayer to playback film after making edits with melt. > > To specify a point in time in melt one uses frames. However omxplayer can > only go as specific as

Re: [Mlt-devel] Colour Correction

I will tell you what I tell all other would be melt users. See one of the MLT-based GUI video editors. They all offer color correction. So, yes, it is possible. You just need to learn more about melt by reading the documentation on the web site and figure out how to translate what the apps are

Re: [Mlt-devel] xml limits

On Sun, Aug 12, 2018 at 7:56 AM Carl Karsten wrote: > How much system resources (memory and file handles) does each "file > producer" use? > Not much because MLT objects are quite small, and all the main file producers (avformat, qimage, pixbuf) utilize mlt_cache. Caching might sound like

Re: [Mlt-devel] small optimization in producer_color

Please try this diff: diff --git a/src/modules/core/producer_colour.c b/src/modules/core/producer_colour.c index 3942877f..eafa434e 100644 --- a/src/modules/core/producer_colour.c +++ b/src/modules/core/producer_colour.c @@ -1,6 +1,6 @@ /* * producer_colour.c - * Copyright (C) 2003-2017

Re: [Mlt-devel] small optimization in producer_color

On Sat, Aug 4, 2018 at 6:51 AM Jean-Baptiste Mardelle wrote: > On 03.08.2018 19:46, Dan Dennedy wrote: > > On Fri, Aug 3, 2018 at 10:23 AM Jean-Baptiste Mardelle > wrote: > >> Hi all, >> >> I recently realized that the color producer always creates an alpha >

Re: [Mlt-devel] small optimization in producer_color

On Fri, Aug 3, 2018 at 10:23 AM Jean-Baptiste Mardelle wrote: > Hi all, > > I recently realized that the color producer always creates an alpha mask, and uses the rgba24a format by default. > Typically, it will receive a format from the downstream consumer services, and it will only choose

Re: [Mlt-devel] Huge memory usage by the webvfx plugin

On Tue, Jul 31, 2018 at 10:14 AM Lu Wang wrote: > Hi All, > > Yesterday I noticed the huge memory usage by the webvfx plugin, as melt > crashed due to "out of memory". My mlt project contains only one track, > which contains a serious of clips, say C1, C2, ... There might be standard > simple

Re: [Mlt-devel] Adjust playback speed/rate of entire playlist or tractor

ion before, and from what I understand (from > other threads in this mailing list), it doesn't support audio. Is that > correct? > > On Wed, Jul 18, 2018 at 3:47 PM, Dan Dennedy wrote: > >> Use mlt_producer_set_speed() on the tractor (or playlist as seen in

Re: [Mlt-devel] Adjust playback speed/rate of entire playlist or tractor

Use mlt_producer_set_speed() on the tractor (or playlist as seen in melted): https://www.mltframework.org/doxygen/structmlt__producer__s.html#a15cb033f194e160cc9f62ce0b3080ff9 Despite the speed being a double, decimals digits are truncated, and speed less than one for slower than realtime are not

Re: [Mlt-devel] Humble test suggestion (Was: 6f7e79: Use mlt_pool ...)

I just re-ran your test with the latest, correct! change for MLT_USE_POOL, and RES usage did not exceed 370 MiB On Wed, Jun 27, 2018 at 4:55 PM Dan Dennedy wrote: > On Wed, Jun 27, 2018 at 3:13 PM Kingsley G. Morse Jr. > wrote: > >> Hi Dan, >> >> Thank you very m

Re: [Mlt-devel] Humble test suggestion (Was: 6f7e79: Use mlt_pool ...)

Hub wrote: > > Branch: refs/heads/master > > Home: https://github.com/mltframework/mlt > > Commit: 6f7e7915b039e24cd82207d7db9ac780f0d84bb3 > > > https://github.com/mltframework/mlt/commit/6f7e7915b039e24cd82207d7db9ac780f0d84bb3 > > Author:

Re: [Mlt-devel] Recent change to comsumer_xml corrupts projects

On Mon, Jun 18, 2018 at 4:42 AM Jean-Baptiste Mardelle wrote: > Hi all, > > > Hope you are doing fine and great to see the recent activity on MLT. One > recent change causes problems in Kdenlive and will also in other > applications: > > >

Re: [Mlt-devel] MLT/Shotcut Specification: ID stability

The IDs are only needed to facilitate XML references. There are no rules other than standard XML ID/IDREF rules: within a document IDs must be unique and IDREFs should refer to valid IDs. Anything beyond that is external to MLT and probably onerous. Shotcut uses the xml consumer to generate MLT

Re: [Mlt-devel] how to exit at clip end?

add "terminate_on_pause=1" to your consumer On Fri, Mar 30, 2018 at 10:36 AM Federico Allegretti wrote: > when i play trough melt some clips, how could i say to melt to > terminate after rendering and playback the last frame? > > -- > Open TV Architecture project:

Re: [Mlt-devel] experimenting with melt and decklink

On Thu, Mar 29, 2018 at 10:26 AM Federico Allegretti wrote: > hello. > > experiemnting with melt by command line. > > Trying to exit trough the deckink consumer like that: > melt -consumer decklink file1 file2 file3 ... > > I forced the fact really hard i suppose, in fact

Re: [Mlt-devel] Detecting alpha in avformat producer

On Wed, Mar 28, 2018 at 12:15 AM Jean-Baptiste Mardelle <j...@kdenlive.org> wrote: > On Monday, March 26, 2018 3:44:09 PM CEST, Brian Matherly wrote: > > On 3/26/2018 1:49 AM, Jean-Baptiste Mardelle wrote: > >> On 23.03.2018 18:42, Dan Dennedy wrote: ... > > Hi

Re: [Mlt-devel] webm encoding reports 1000fps

OK, please someone commit it. On Tue, Mar 27, 2018 at 3:08 PM Brian Matherly wrote: > > > Following Kdenlive's bug report: > > > > https://bugs.kde.org/show_bug.cgi?id=392294 > > > > I noticed that encoding to webm with the avformat consumer produces > > files reporting

Re: [Mlt-devel] Detecting alpha in avformat producer

Do not forget to check libavutil version when adding more pixfmts. On Fri, Mar 23, 2018 at 6:31 AM Brian Matherly wrote: > > On 3/23/2018 2:47 AM, Jean-Baptiste Mardelle wrote: > > Hi all, > > > > In order to optimize performance, in the qtblend transition (in the qt >

Re: [Mlt-devel] A smaller test case now elicits "[mlt_pool] out of memory"

On Fri, Mar 16, 2018 at 12:52 PM Dan Dennedy <d...@dennedy.org> wrote: > I took some time today to build kdenlive (master branch) and test this > out... > > On Thu, Feb 22, 2018 at 12:20 AM Jean-Baptiste Mardelle <j...@kdenlive.org> > wrote: > >> On 17.02.201

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