I'm working on a session that makes extensive use of track effects. For most of this project, in fact, the only effects I'll be using are track-level effects (rather than putting effects on individual timeline clips).

I've run into a problem. Everything works fine up until a certain point (00:04:46:10, to be precise), but after that, none of the track effects has any effect.

I can't tell if this is a bug or just my own misunderstanding.

Thinking that maybe my session contains a glitch at 00:04:46:11 (a glitch which turns off all the track effects?), I've tried inserting empty space at the beginning of the session and then sliding all my items to the left, so that all the items will play before the glitch occurs, but that didn't work. Even after inserting the empty space, the effects still cease working at exactly 4:46:11.

If this is a bug, then I'm searching for the workaround. And if it's my misunderstanding, then I'm searching for enlightenment.

Help please!

Here are some more details: if I go to one of the track effects to edit its parameters, its keyframe timeline spans the whole project, as it should. If I add a keyframe to the left of 00:04:46:11, then editing the parameters of that keyframe do modify the picture as expected. If I add a keyframe at that frame or later, though, then all I see on the monitor is the underlying clip without any effects. I can modify that keyframe to my heart's content and the picture doesn't change.

Just made some tests... and i can't reproduce that on latest build (Windows version)
http://www.wcn.it/cantreproduce.jpg

What version of Kdenlive are you using?
( on linux you can test the 20.04 RC3: https://files.kde.org/kdenlive/unstable ... 3.appimage )

I've done some more experimenting and I've determined that it has something to do with extending the length of the project after inserting the track effect.

Here's how to reproduce the problem:

start kdenlive
load a video into the clip bin
drag the clip onto the timeline
shorten its right end that the clip is not the full length of the underlying media
add a track effect to the track containing the clip, and set its parameters in some way
extend the clip so that it's a bit longer
move the playhead to somewhere in the extended portion of the clip
now the effect no longer works
drag the playhead back to somewhere in the timespan of the original shorter clip
now the effect works again

Here's a simpler way to reproduce the problem:

start kdenlive
load a video into the clip bin
drag the clip onto the timeline
add a track effect to the track containing the clip, and set its parameters in some way
drag another instance of the the same clip from the clip bin to a later point on the same track
move the playhead to somewhere in the second instance of the clip
now the effect no longer works
drag the playhead back to somewhere in the original clip
now the effect works again

I found a workaround for the problem.

If I edit the .kdenlive file, and find where those track effects are defined in the file, they have a starting that looks something like this:

<filter id="filter7" out="00:04:46.333">

Notice that time, 4:46.333? In my original post I was talking about the effect ceasing to work at 04:46:11. So, i've found the culprit. I just need to delete the out="00:04:46.333" portion of the tag, so that it looks like this:

<filter id="filter7">

And now the track effect works for the entire project and not just the beginning of it.

I hope this bug can be fixed soon, but in the meantime this is a workable fix for anyone who's comfortable with editing XML and isn't scared of messing up their documents. (Make sure to keep a backup before attempting this.)

nice catch, can you fill an issue about this?
https://invent.kde.org/kde/kdenlive/issues

solomondouglas wrote:I found a workaround for the problem.

seems that the issue was adressed on latest builds probably you can mark this post "solved"

solomondouglas wrote:I found a workaround for the problem.

If I edit the .kdenlive file, and find where those track effects are defined in the file, they have a starting that looks something like this:

<filter id="filter7" out="00:04:46.333">

Notice that time, 4:46.333? In my original post I was talking about the effect ceasing to work at 04:46:11. So, i've found the culprit. I just need to delete the out="00:04:46.333" portion of the tag, so that it looks like this:

<filter id="filter7">

And now the track effect works for the entire project and not just the beginning of it.

I hope this bug can be fixed soon, but in the meantime this is a workable fix for anyone who's comfortable with editing XML and isn't scared of messing up their documents. (Make sure to keep a backup before attempting this.)

I'm having a similar problem but only related to Rotate (Frameable) effect, everything seems to work up to 06:25:21 since that frame the X value begins to change up to 06:27:11
but there's keyframes at these points, from 06:27:11 up to the clip end the changes make no effect. I understand XML and I don't mind to edit the .kdenlive file after creating a backup but I had no luck, here's what I found the clip file name is TS3-1.MP4 an is related to these IDs:
"producer5"
"producer64"
"producer71"
"producer77"
And the mentions of these IDs are the following:

Code: Select all

<producer title="Anonymous Submission" id="producer5" in="00:00:00,000" out="00:06:33,867">
  <property name="length">11805</property>
  <property name="eof">pause</property>
  <property name="resource">Tenores Stolen Moments/TS3-1.MP4</property>
  <property name="audio_index">1</property>
  <property name="video_index">0</property>
  <property name="mute_on_pause">0</property>
  <property name="mlt_service">avformat-novalidate</property>
  <property name="meta.media.nb_streams">3</property>
  <property name="meta.media.0.stream.type">video</property>
  <property name="meta.media.0.stream.frame_rate">29,97</property>
  <property name="meta.media.0.stream.sample_aspect_ratio">0</property>
  <property name="meta.media.0.codec.width">1920</property>
  <property name="meta.media.0.codec.height">1080</property>
  <property name="meta.media.0.codec.rotate">0</property>
  <property name="meta.media.0.codec.frame_rate">29,97</property>
  <property name="meta.media.0.codec.pix_fmt">yuv420p</property>
  <property name="meta.media.0.codec.sample_aspect_ratio">1</property>
  <property name="meta.media.0.codec.colorspace">709</property>
  <property name="meta.media.0.codec.color_trc">11</property>
  <property name="meta.media.0.codec.name">h264</property>
  <property name="meta.media.0.codec.long_name">H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10</property>
  <property name="meta.media.0.codec.bit_rate">49877093</property>
  <property name="meta.attr.0.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.0.stream.handler_name.markup">Video Media Handler</property>
  <property name="meta.attr.0.stream.encoder.markup">AVC Coding</property>
  <property name="meta.media.1.stream.type">audio</property>
  <property name="meta.media.1.codec.sample_fmt">s16</property>
  <property name="meta.media.1.codec.sample_rate">48000</property>
  <property name="meta.media.1.codec.channels">2</property>
  <property name="meta.media.1.codec.name">pcm_s16be</property>
  <property name="meta.media.1.codec.long_name">PCM signed 16-bit big-endian</property>
  <property name="meta.media.1.codec.bit_rate">1536000</property>
  <property name="meta.attr.1.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.1.stream.handler_name.markup">Sound Media Handler</property>
  <property name="meta.attr.major_brand.markup">XAVC</property>
  <property name="meta.attr.minor_version.markup">16785407</property>
  <property name="meta.attr.compatible_brands.markup">XAVCmp42iso2</property>
  <property name="meta.attr.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="seekable">1</property>
  <property name="meta.media.sample_aspect_num">1</property>
  <property name="meta.media.sample_aspect_den">1</property>
  <property name="aspect_ratio">1</property>
  <property name="kdenlive:clipname"/>
  <property name="kdenlive:folderid">-1</property>
  <property name="meta.media.frame_rate_num">30000</property>
  <property name="meta.media.frame_rate_den">1001</property>
  <property name="meta.media.colorspace">709</property>
  <property name="meta.media.color_trc">11</property>
  <property name="meta.media.width">1920</property>
  <property name="meta.media.height">1080</property>
  <property name="meta.media.color_range">mpeg</property>
  <property name="kdenlive:id">8</property>
  <property name="kdenlive:file_size">2543559355</property>
  <property name="kdenlive:file_hash">491f14c9208553fe1dc66c74cfa91d3e</property>
  <property name="meta.media.top_field_first">0</property>
  <property name="meta.media.progressive">1</property>
  <property name="global_feed">1</property>
 </producer>

Code: Select all

<entry producer="producer5" in="00:00:00,000" out="00:06:33,867"/>

Code: Select all

 <producer title="Anonymous Submission" id="producer64" in="00:00:00,000" out="00:06:33,867">
  <property name="length">11805</property>
  <property name="eof">pause</property>
  <property name="resource">Tenores Stolen Moments/TS3-1.MP4</property>
  <property name="audio_index">1</property>
  <property name="video_index">0</property>
  <property name="mute_on_pause">0</property>
  <property name="mlt_service">avformat-novalidate</property>
  <property name="seekable">1</property>
  <property name="aspect_ratio">1</property>
  <property name="kdenlive:clipname"/>
  <property name="kdenlive:folderid">-1</property>
  <property name="kdenlive:id">8</property>
  <property name="kdenlive:file_size">2543559355</property>
  <property name="kdenlive:file_hash">491f14c9208553fe1dc66c74cfa91d3e</property>
  <property name="global_feed">1</property>
  <property name="xml">was here</property>
  <property name="meta.media.nb_streams">3</property>
  <property name="meta.media.0.stream.type">video</property>
  <property name="meta.media.0.stream.frame_rate">29,97</property>
  <property name="meta.media.0.stream.sample_aspect_ratio">0</property>
  <property name="meta.media.0.codec.width">1920</property>
  <property name="meta.media.0.codec.height">1080</property>
  <property name="meta.media.0.codec.rotate">0</property>
  <property name="meta.media.0.codec.frame_rate">29,97</property>
  <property name="meta.media.0.codec.pix_fmt">yuv420p</property>
  <property name="meta.media.0.codec.sample_aspect_ratio">1</property>
  <property name="meta.media.0.codec.colorspace">709</property>
  <property name="meta.media.0.codec.color_trc">11</property>
  <property name="meta.media.0.codec.name">h264</property>
  <property name="meta.media.0.codec.long_name">H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10</property>
  <property name="meta.media.0.codec.bit_rate">49877093</property>
  <property name="meta.attr.0.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.0.stream.handler_name.markup">Video Media Handler</property>
  <property name="meta.attr.0.stream.encoder.markup">AVC Coding</property>
  <property name="meta.media.1.stream.type">audio</property>
  <property name="meta.media.1.codec.sample_fmt">s16</property>
  <property name="meta.media.1.codec.sample_rate">48000</property>
  <property name="meta.media.1.codec.channels">2</property>
  <property name="meta.media.1.codec.name">pcm_s16be</property>
  <property name="meta.media.1.codec.long_name">PCM signed 16-bit big-endian</property>
  <property name="meta.media.1.codec.bit_rate">1536000</property>
  <property name="meta.attr.1.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.1.stream.handler_name.markup">Sound Media Handler</property>
  <property name="meta.attr.major_brand.markup">XAVC</property>
  <property name="meta.attr.minor_version.markup">16785407</property>
  <property name="meta.attr.compatible_brands.markup">XAVCmp42iso2</property>
  <property name="meta.attr.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.media.sample_aspect_num">1</property>
  <property name="meta.media.sample_aspect_den">1</property>
  <property name="meta.media.frame_rate_num">30000</property>
  <property name="meta.media.frame_rate_den">1001</property>
  <property name="meta.media.colorspace">709</property>
  <property name="meta.media.color_trc">11</property>
  <property name="meta.media.width">1920</property>
  <property name="meta.media.height">1080</property>
  <property name="meta.media.color_range">mpeg</property>
  <property name="meta.media.top_field_first">0</property>
  <property name="meta.media.progressive">1</property>
  <property name="set.test_audio">0</property>
  <property name="set.test_image">1</property>
 </producer>


Code: Select all

  <entry producer="producer64" in="00:00:00,000" out="00:06:33,867">
   <property name="kdenlive:id">8</property>
  </entry>

Code: Select all

<producer title="Anonymous Submission" id="producer71" in="00:00:00,000" out="00:06:33,867">
  <property name="length">11805</property>
  <property name="eof">pause</property>
  <property name="resource">Tenores Stolen Moments/TS3-1.MP4</property>
  <property name="audio_index">1</property>
  <property name="video_index">0</property>
  <property name="mute_on_pause">0</property>
  <property name="mlt_service">avformat-novalidate</property>
  <property name="seekable">1</property>
  <property name="aspect_ratio">1</property>
  <property name="kdenlive:clipname"/>
  <property name="kdenlive:folderid">-1</property>
  <property name="kdenlive:id">8</property>
  <property name="kdenlive:file_size">2543559355</property>
  <property name="kdenlive:file_hash">491f14c9208553fe1dc66c74cfa91d3e</property>
  <property name="global_feed">1</property>
  <property name="xml">was here</property>
  <property name="meta.media.nb_streams">3</property>
  <property name="meta.media.0.stream.type">video</property>
  <property name="meta.media.0.stream.frame_rate">29,97</property>
  <property name="meta.media.0.stream.sample_aspect_ratio">0</property>
  <property name="meta.media.0.codec.width">1920</property>
  <property name="meta.media.0.codec.height">1080</property>
  <property name="meta.media.0.codec.rotate">0</property>
  <property name="meta.media.0.codec.frame_rate">29,97</property>
  <property name="meta.media.0.codec.pix_fmt">yuv420p</property>
  <property name="meta.media.0.codec.sample_aspect_ratio">1</property>
  <property name="meta.media.0.codec.colorspace">709</property>
  <property name="meta.media.0.codec.color_trc">11</property>
  <property name="meta.media.0.codec.name">h264</property>
  <property name="meta.media.0.codec.long_name">H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10</property>
  <property name="meta.media.0.codec.bit_rate">49877093</property>
  <property name="meta.attr.0.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.0.stream.handler_name.markup">Video Media Handler</property>
  <property name="meta.attr.0.stream.encoder.markup">AVC Coding</property>
  <property name="meta.media.1.stream.type">audio</property>
  <property name="meta.media.1.codec.sample_fmt">s16</property>
  <property name="meta.media.1.codec.sample_rate">48000</property>
  <property name="meta.media.1.codec.channels">2</property>
  <property name="meta.media.1.codec.name">pcm_s16be</property>
  <property name="meta.media.1.codec.long_name">PCM signed 16-bit big-endian</property>
  <property name="meta.media.1.codec.bit_rate">1536000</property>
  <property name="meta.attr.1.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.1.stream.handler_name.markup">Sound Media Handler</property>
  <property name="meta.attr.major_brand.markup">XAVC</property>
  <property name="meta.attr.minor_version.markup">16785407</property>
  <property name="meta.attr.compatible_brands.markup">XAVCmp42iso2</property>
  <property name="meta.attr.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.media.sample_aspect_num">1</property>
  <property name="meta.media.sample_aspect_den">1</property>
  <property name="meta.media.frame_rate_num">30000</property>
  <property name="meta.media.frame_rate_den">1001</property>
  <property name="meta.media.colorspace">709</property>
  <property name="meta.media.color_trc">11</property>
  <property name="meta.media.width">1920</property>
  <property name="meta.media.height">1080</property>
  <property name="meta.media.color_range">mpeg</property>
  <property name="meta.media.top_field_first">0</property>
  <property name="meta.media.progressive">1</property>
  <property name="set.test_audio">1</property>
  <property name="set.test_image">0</property>
 </producer>

Code: Select all

  <entry producer="producer71" in="00:00:00,000" out="00:06:33,867">
   <property name="kdenlive:id">8</property>
   <filter id="filter97">
    <property name="version">0,1</property>
    <property name="mlt_service">frei0r.colgate</property>
    <property name="kdenlive_id">frei0r.colgate</property>
    <property name="Neutral Color">0x7f7f7fff</property>
    <property name="Color Temperature">0=0,477333</property>
    <property name="kdenlive:collapsed">1</property>
   </filter>
   <filter id="filter98">
    <property name="version">0,2</property>
    <property name="mlt_service">frei0r.contrast0r</property>
    <property name="kdenlive_id">frei0r.contrast0r</property>
    <property name="Contrast">0=0,6</property>
    <property name="kdenlive:collapsed">1</property>
   </filter>
  </entry>


Code: Select all

 <producer title="Anonymous Submission" id="producer77" in="00:00:00,000" out="00:06:33,867">
  <property name="length">11805</property>
  <property name="eof">pause</property>
  <property name="resource">Tenores Stolen Moments/TS3-1.MP4</property>
  <property name="audio_index">1</property>
  <property name="video_index">0</property>
  <property name="mute_on_pause">0</property>
  <property name="mlt_service">avformat-novalidate</property>
  <property name="seekable">1</property>
  <property name="aspect_ratio">1</property>
  <property name="kdenlive:clipname"/>
  <property name="kdenlive:folderid">-1</property>
  <property name="kdenlive:id">8</property>
  <property name="kdenlive:file_size">2543559355</property>
  <property name="kdenlive:file_hash">491f14c9208553fe1dc66c74cfa91d3e</property>
  <property name="global_feed">1</property>
  <property name="xml">was here</property>
  <property name="meta.media.nb_streams">3</property>
  <property name="meta.media.0.stream.type">video</property>
  <property name="meta.media.0.stream.frame_rate">29,97</property>
  <property name="meta.media.0.stream.sample_aspect_ratio">0</property>
  <property name="meta.media.0.codec.width">1920</property>
  <property name="meta.media.0.codec.height">1080</property>
  <property name="meta.media.0.codec.rotate">0</property>
  <property name="meta.media.0.codec.frame_rate">29,97</property>
  <property name="meta.media.0.codec.pix_fmt">yuv420p</property>
  <property name="meta.media.0.codec.sample_aspect_ratio">1</property>
  <property name="meta.media.0.codec.colorspace">709</property>
  <property name="meta.media.0.codec.color_trc">11</property>
  <property name="meta.media.0.codec.name">h264</property>
  <property name="meta.media.0.codec.long_name">H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10</property>
  <property name="meta.media.0.codec.bit_rate">49877093</property>
  <property name="meta.attr.0.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.0.stream.handler_name.markup">Video Media Handler</property>
  <property name="meta.attr.0.stream.encoder.markup">AVC Coding</property>
  <property name="meta.media.1.stream.type">audio</property>
  <property name="meta.media.1.codec.sample_fmt">s16</property>
  <property name="meta.media.1.codec.sample_rate">48000</property>
  <property name="meta.media.1.codec.channels">2</property>
  <property name="meta.media.1.codec.name">pcm_s16be</property>
  <property name="meta.media.1.codec.long_name">PCM signed 16-bit big-endian</property>
  <property name="meta.media.1.codec.bit_rate">1536000</property>
  <property name="meta.attr.1.stream.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.attr.1.stream.handler_name.markup">Sound Media Handler</property>
  <property name="meta.attr.major_brand.markup">XAVC</property>
  <property name="meta.attr.minor_version.markup">16785407</property>
  <property name="meta.attr.compatible_brands.markup">XAVCmp42iso2</property>
  <property name="meta.attr.creation_time.markup">2020-04-19T22:46:42.000000Z</property>
  <property name="meta.media.sample_aspect_num">1</property>
  <property name="meta.media.sample_aspect_den">1</property>
  <property name="meta.media.frame_rate_num">30000</property>
  <property name="meta.media.frame_rate_den">1001</property>
  <property name="meta.media.colorspace">709</property>
  <property name="meta.media.color_trc">11</property>
  <property name="meta.media.width">1920</property>
  <property name="meta.media.height">1080</property>
  <property name="meta.media.color_range">mpeg</property>
  <property name="meta.media.top_field_first">0</property>
  <property name="meta.media.progressive">1</property>
  <property name="set.test_audio">1</property>
  <property name="set.test_image">0</property>
 </producer>


Code: Select all

  <entry producer="producer77" in="00:00:50,684" out="00:01:44,544">
   <property name="kdenlive:id">8</property>
   <property name="kdenlive:activeeffect">0</property>
   <filter id="filter136">
    <property name="version">0,1</property>
    <property name="mlt_service">frei0r.colgate</property>
    <property name="kdenlive_id">frei0r.colgate</property>
    <property name="Neutral Color">0x7f7f7fff</property>
    <property name="Color Temperature">1519=0,477333</property>
    <property name="kdenlive:collapsed">1</property>
    <property name="disable">1</property>
   </filter>
   <filter id="filter137">
    <property name="version">0,2</property>
    <property name="mlt_service">frei0r.contrast0r</property>
    <property name="kdenlive_id">frei0r.contrast0r</property>
    <property name="Contrast">1519=0,6</property>
    <property name="kdenlive:collapsed">1</property>
    <property name="disable">1</property>
   </filter>
   <filter id="filter138">
    <property name="background">colour:0</property>
    <property name="mlt_service">affine</property>
    <property name="kdenlive_id">affinerotate</property>
    <property name="transition.rotate_x">1519=0;1569=0;2911=0;3133=0</property>
    <property name="transition.rotate_y">1519=0;1569=0;2911=0;3133=0</property>
    <property name="transition.rotate_z">1519=0;1569=0;2911=0;3133=0</property>
    <property name="transition.ox">1519=1234;1569=650;2911=650;3133=0</property>
    <property name="transition.oy">1519=0;1569=0;2911=0;3133=0</property>
    <property name="producer.resource">0x00000000</property>
    <property name="transition.keyed">1</property>
    <property name="transition.always_active">1</property>
    <property name="kdenlive:collapsed">0</property>
    <property name="disable">0</property>
   </filter>
   <filter id="filter139">
    <property name="rotate_center">1</property>
    <property name="mlt_service">qtblend</property>
    <property name="kdenlive_id">qtblend</property>
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This las fragment seems to be the most representative but I was not able to find a reference to the moment on which the problem happens. I'm stuck at 19.12.3 version because is the latest available for my distro (Fedora 31 KDE), I downloaded the latest git build but I was unable to compile it because to install the required libraries implies to remove very important packages (i.e Dolphin). I'm desperated because I'm working on a project with around 20 clips and It's almost finished after a lot of hours of work and this issue don't let me finish the project, I'd prefer to solve it in Kdenlive instead starting it from zero with a different video editor. Any kind of help will be greatly appreciated. Thank you very much in advance.
Luis Pablo

I'm using appimages on fedora without issues.

bartoloni wrote:I'm using appimages on fedora without issues.

Finally, that's was I did. installed the appimage and everything works OK now. It seems the 19.03 release was very buggy, I found a lot of bugfixes in the current stable version.