[multimedia/kdenlive-test-suite] /: Add two extra checks for qtblend scaling

Jean-Baptiste Mardelle <[email protected]>
Newsgroups gmane.comp.kde.cvs
Message-ID <[email protected]>
Git commit 73acc7a63c2ebf96cb8019656fe5c53e54508436 by Jean-Baptiste Mardelle.
Committed on 06/08/2026 at 09:59.
Pushed by mardelle into branch 'master'.

Add two extra checks for qtblend scaling

A  +3    -0    projects/footage/1440.mp4
A  +-    --    projects/footage/logo-small.png
M  +6    -0    projects/projects.yaml
A  +1607 -0    projects/qtblend-1440p.kdenlive
A  +1443 -0    projects/qtblend-scale-small.kdenlive
A  +3    -0    reference/qtblend-1440p.mp4
A  +3    -0    reference/qtblend-scale-small.mp4

https://invent.kde.org/multimedia/kdenlive-test-suite/-/commit/73acc7a63c2ebf96cb8019656fe5c53e54508436

diff --git a/projects/footage/1440.mp4 b/projects/footage/1440.mp4
new file mode 100644
index 0000000..391562e
--- /dev/null
+++ b/projects/footage/1440.mp4
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1effa032d1b3a61cd03d9ad4b22a6b130af6281cbe2ec0dc9d19405ac3708cb1
+size 3955
diff --git a/projects/footage/logo-small.png b/projects/footage/logo-small.png
new file mode 100644
index 0000000..ec3174a
Binary files /dev/null and b/projects/footage/logo-small.png differ
diff --git a/projects/projects.yaml b/projects/projects.yaml
index c700313..a303d62 100644
--- a/projects/projects.yaml
+++ b/projects/projects.yaml
@@ -50,13 +50,19 @@
     - Video
     from_frame: 175
     to_frame: 184
+- filename: qtblend-1440p.kdenlive
+  description: Tests video with 1.33 PAR in project with 1 PAR profile.
 - filename: qtblend-composition-scale.kdenlive
+  description: Ensure we can keep full resolution when zooming with qtblend composition a 4k image in an HD project.
 - filename: qtblend-freeze.kdenlive
 - filename: qtblend-horizontal-transform.kdenlive
 - filename: qtblend-media.kdenlive
 - filename: qtblend-ratio-check.kdenlive
 - filename: qtblend-resolution-check.kdenlive
+  description: Ensure we can keep full resolution when zooming a 4k image in an HD vertical project.
 - filename: qtblend-rotate.kdenlive
+- filename: qtblend-scale-small.kdenlive
+  description: Check scaling of small images.
 - filename: qtblend-transition.kdenlive
 - filename: qtblend-vertical-transform.kdenlive
 - filename: qtblend-zoom.kdenlive
diff --git a/projects/qtblend-1440p.kdenlive b/projects/qtblend-1440p.kdenlive
new file mode 100644
index 0000000..31d0627
--- /dev/null
+++ b/projects/qtblend-1440p.kdenlive
@@ -0,0 +1,1607 @@
+<?xml version='1.0' encoding='utf-8'?>
+<mlt LC_NUMERIC="C" producer="main_bin" root="" version="7.41.0">
+ <profile colorspace="709" description="HD 1080p 25 fps" display_aspect_den="9" display_aspect_num="16" frame_rate_den="1" frame_rate_num="25" height="1080" progressive="1" sample_aspect_den="1" sample_aspect_num="1" width="1920"/>
+ <producer id="producer0" in="00:00:00.000" out="00:05:00.880">
+  <property name="length">2147483647</property>
+  <property name="eof">continue</property>
+  <property name="resource">black</property>
+  <property name="aspect_ratio">1</property>
+  <property name="mlt_service">color</property>
+  <property name="kdenlive:playlistid">black_track</property>
+  <property name="mlt_image_format">rgba</property>
+  <property name="set.test_audio">0</property>
+ </producer>
+ <playlist id="playlist0">
+  <property name="kdenlive:audio_track">1</property>
+ </playlist>
+ <playlist id="playlist1">
+  <property name="kdenlive:audio_track">1</property>
+ </playlist>
+ <tractor id="tractor0" in="00:00:00.000">
+  <property name="kdenlive:audio_track">1</property>
+  <property name="kdenlive:trackheight">72</property>
+  <property name="kdenlive:timeline_active">1</property>
+  <property name="kdenlive:collapsed">0</property>
+  <property name="kdenlive:thumbs_format"/>
+  <property name="kdenlive:audio_rec"/>
+  <track hide="video" producer="playlist0"/>
+  <track hide="video" producer="playlist1"/>
+  <filter id="filter0">
+   <property name="window">75</property>
+   <property name="max_gain">20dB</property>
+   <property name="channel_mask">-1</property>
+   <property name="mlt_service">volume</property>
+   <property name="internal_added">237</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter1">
+   <property name="channel">-1</property>
+   <property name="mlt_service">panner</property>
+   <property name="internal_added">237</property>
+   <property name="start">0.5</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter2">
+   <property name="iec_scale">0</property>
+   <property name="mlt_service">audiolevel</property>
+   <property name="internal_added">237</property>
+   <property name="dbpeak">1</property>
+   <property name="disable">1</property>
+  </filter>
+ </tractor>
+ <chain id="chain0" out="00:00:00.400">
+  <property name="length">11</property>
+  <property name="eof">continue</property>
+  <property name="resource">footage/1440.mp4</property>
+  <property name="mlt_service">avformat-novalidate</property>
+  <property name="seekable">1</property>
+  <property name="format">3</property>
+  <property name="audio_index">1</property>
+  <property name="video_index">0</property>
+  <property name="vstream">0</property>
+  <property name="astream">0</property>
+  <property name="kdenlive:folderid">-1</property>
+  <property name="kdenlive:id">5</property>
+  <property name="kdenlive:control_uuid">{0c0cd4bf-7712-4069-abc0-c18fe280ad3b}</property>
+  <property name="mute_on_pause">0</property>
+  <property name="kdenlive:clip_type">0</property>
+  <property name="kdenlive:file_size">3955</property>
+  <property name="kdenlive:file_hash">f76dface78a4fc77956f4e93f17b2936</property>
+  <property name="kdenlive:record_start_frame">-1</property>
+  <property name="kdenlive:record_start_frame_1">-1</property>
+  <property name="kdenlive:kextractor">1</property>
+  <property name="kdenlive:meta.extractor.Bitrate:">70 kb/s</property>
+  <property name="meta.media.nb_streams">2</property>
+  <property name="meta.media.0.stream.type">video</property>
+  <property name="meta.media.0.stream.frame_rate">25</property>
+  <property name="meta.media.0.stream.sample_aspect_ratio">1.33333</property>
+  <property name="meta.media.0.codec.width">1440</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.pix_fmt">yuv420p</property>
+  <property name="meta.media.0.codec.sample_aspect_ratio">1.33333</property>
+  <property name="meta.media.0.codec.colorspace">709</property>
+  <property name="meta.media.0.codec.color_trc">1</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">36509</property>
+  <property name="meta.attr.0.stream.handler_name.markup">VideoHandler</property>
+  <property name="meta.media.1.stream.type">audio</property>
+  <property name="meta.media.1.codec.sample_fmt">fltp</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.layout">stereo</property>
+  <property name="meta.media.1.codec.name">aac</property>
+  <property name="meta.media.1.codec.long_name">AAC (Advanced Audio Coding)</property>
+  <property name="meta.media.1.codec.bit_rate">2539</property>
+  <property name="meta.attr.1.stream.handler_name.markup">SoundHandler</property>
+  <property name="meta.attr.major_brand.markup">isom</property>
+  <property name="meta.attr.minor_version.markup">512</property>
+  <property name="meta.attr.compatible_brands.markup">isomiso2avc1mp41</property>
+  <property name="meta.attr.encoder.markup">Lavf62.12.102</property>
+  <property name="meta.media.sample_aspect_num">4</property>
+  <property name="meta.media.sample_aspect_den">3</property>
+  <property name="meta.media.frame_rate_num">25</property>
+  <property name="meta.media.frame_rate_den">1</property>
+  <property name="meta.media.colorspace">709</property>
+  <property name="meta.media.color_trc">1</property>
+  <property name="meta.media.has_b_frames">2</property>
+  <property name="meta.media.width">1440</property>
+  <property name="meta.media.height">1080</property>
+  <property name="meta.media.aspect_ratio">1.33333</property>
+  <property name="meta.media.color_range">mpeg</property>
+  <property name="xml">was here</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>
+ </chain>
+ <playlist id="playlist2">
+  <property name="kdenlive:audio_track">1</property>
+  <entry in="00:00:00.000" out="00:00:00.400" producer="chain0">
+   <property name="kdenlive:id">5</property>
+  </entry>
+  <entry in="00:00:00.000" out="00:00:00.400" producer="chain0">
+   <property name="kdenlive:id">5</property>
+  </entry>
+ </playlist>
+ <playlist id="playlist3">
+  <property name="kdenlive:audio_track">1</property>
+ </playlist>
+ <tractor id="tractor1" in="00:00:00.000" out="00:00:00.840">
+  <property name="kdenlive:audio_track">1</property>
+  <property name="kdenlive:trackheight">72</property>
+  <property name="kdenlive:timeline_active">1</property>
+  <property name="kdenlive:collapsed">0</property>
+  <property name="kdenlive:thumbs_format"/>
+  <property name="kdenlive:audio_rec"/>
+  <track hide="video" producer="playlist2"/>
+  <track hide="video" producer="playlist3"/>
+  <filter id="filter3">
+   <property name="window">75</property>
+   <property name="max_gain">20dB</property>
+   <property name="channel_mask">-1</property>
+   <property name="mlt_service">volume</property>
+   <property name="internal_added">237</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter4">
+   <property name="channel">-1</property>
+   <property name="mlt_service">panner</property>
+   <property name="internal_added">237</property>
+   <property name="start">0.5</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter5">
+   <property name="iec_scale">0</property>
+   <property name="mlt_service">audiolevel</property>
+   <property name="internal_added">237</property>
+   <property name="dbpeak">1</property>
+   <property name="disable">1</property>
+  </filter>
+ </tractor>
+ <chain id="chain1" out="00:00:00.400">
+  <property name="length">11</property>
+  <property name="eof">continue</property>
+  <property name="resource">footage/1440.mp4</property>
+  <property name="mlt_service">avformat-novalidate</property>
+  <property name="seekable">1</property>
+  <property name="format">3</property>
+  <property name="audio_index">1</property>
+  <property name="video_index">0</property>
+  <property name="vstream">0</property>
+  <property name="astream">0</property>
+  <property name="kdenlive:folderid">-1</property>
+  <property name="kdenlive:id">5</property>
+  <property name="kdenlive:control_uuid">{0c0cd4bf-7712-4069-abc0-c18fe280ad3b}</property>
+  <property name="mute_on_pause">0</property>
+  <property name="kdenlive:clip_type">0</property>
+  <property name="kdenlive:file_size">3955</property>
+  <property name="kdenlive:file_hash">f76dface78a4fc77956f4e93f17b2936</property>
+  <property name="kdenlive:record_start_frame">-1</property>
+  <property name="kdenlive:record_start_frame_1">-1</property>
+  <property name="kdenlive:kextractor">1</property>
+  <property name="kdenlive:meta.extractor.Bitrate:">70 kb/s</property>
+  <property name="meta.media.nb_streams">2</property>
+  <property name="meta.media.0.stream.type">video</property>
+  <property name="meta.media.0.stream.frame_rate">25</property>
+  <property name="meta.media.0.stream.sample_aspect_ratio">1.33333</property>
+  <property name="meta.media.0.codec.width">1440</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.pix_fmt">yuv420p</property>
+  <property name="meta.media.0.codec.sample_aspect_ratio">1.33333</property>
+  <property name="meta.media.0.codec.colorspace">709</property>
+  <property name="meta.media.0.codec.color_trc">1</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">36509</property>
+  <property name="meta.attr.0.stream.handler_name.markup">VideoHandler</property>
+  <property name="meta.media.1.stream.type">audio</property>
+  <property name="meta.media.1.codec.sample_fmt">fltp</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.layout">stereo</property>
+  <property name="meta.media.1.codec.name">aac</property>
+  <property name="meta.media.1.codec.long_name">AAC (Advanced Audio Coding)</property>
+  <property name="meta.media.1.codec.bit_rate">2539</property>
+  <property name="meta.attr.1.stream.handler_name.markup">SoundHandler</property>
+  <property name="meta.attr.major_brand.markup">isom</property>
+  <property name="meta.attr.minor_version.markup">512</property>
+  <property name="meta.attr.compatible_brands.markup">isomiso2avc1mp41</property>
+  <property name="meta.attr.encoder.markup">Lavf62.12.102</property>
+  <property name="meta.media.sample_aspect_num">4</property>
+  <property name="meta.media.sample_aspect_den">3</property>
+  <property name="meta.media.frame_rate_num">25</property>
+  <property name="meta.media.frame_rate_den">1</property>
+  <property name="meta.media.colorspace">709</property>
+  <property name="meta.media.color_trc">1</property>
+  <property name="meta.media.has_b_frames">2</property>
+  <property name="meta.media.width">1440</property>
+  <property name="meta.media.height">1080</property>
+  <property name="meta.media.aspect_ratio">1.33333</property>
+  <property name="meta.media.color_range">mpeg</property>
+  <property name="xml">was here</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>
+ </chain>
+ <playlist id="playlist4">
+  <entry in="00:00:00.000" out="00:00:00.400" producer="chain1">
+   <property name="kdenlive:id">5</property>
+  </entry>
+  <entry in="00:00:00.000" out="00:00:00.400" producer="chain1">
+   <property name="kdenlive:id">5</property>
+   <property name="kdenlive:activeeffect">0</property>
+   <filter id="filter6">
+    <property name="rotate_center">0</property>
+    <property name="mlt_service">qtblend</property>
+    <property name="kdenlive_id">qtblend</property>
+    <property name="compositing">0</property>
+    <property name="distort">0</property>
+    <property name="rect">00:00:00.000=497 280 926 520 1.000000</property>
+    <property name="rotate_anchor">0=0.5 0.5 0 0</property>
+    <property name="rotation">00:00:00.000=0</property>
+    <property name="kdenlive:collapsed">0</property>
+   </filter>
+  </entry>
+ </playlist>
+ <playlist id="playlist5"/>
+ <tractor id="tractor2" in="00:00:00.000" out="00:00:00.840">
+  <property name="kdenlive:trackheight">72</property>
+  <property name="kdenlive:timeline_active">1</property>
+  <property name="kdenlive:collapsed">0</property>
+  <property name="kdenlive:thumbs_format"/>
+  <property name="kdenlive:audio_rec"/>
+  <track hide="audio" producer="playlist4"/>
+  <track hide="audio" producer="playlist5"/>
+ </tractor>
+ <playlist id="playlist6"/>
+ <playlist id="playlist7"/>
+ <tractor id="tractor3" in="00:00:00.000">
+  <property name="kdenlive:trackheight">72</property>
+  <property name="kdenlive:timeline_active">1</property>
+  <property name="kdenlive:collapsed">0</property>
+  <property name="kdenlive:thumbs_format"/>
+  <property name="kdenlive:audio_rec"/>
+  <track hide="audio" producer="playlist6"/>
+  <track hide="audio" producer="playlist7"/>
+ </tractor>
+ <tractor id="{42b81d20-7066-45e7-a091-d0992788c65a}" in="00:00:00.000" out="00:00:00.840">
+  <property name="kdenlive:uuid">{42b81d20-7066-45e7-a091-d0992788c65a}</property>
+  <property name="kdenlive:clipname">Sequence 1</property>
+  <property name="kdenlive:sequenceproperties.hasAudio">1</property>
+  <property name="kdenlive:sequenceproperties.hasVideo">1</property>
+  <property name="kdenlive:sequenceproperties.activeTrack">2</property>
+  <property name="kdenlive:sequenceproperties.tracksCount">4</property>
+  <property name="kdenlive:sequenceproperties.documentuuid">{42b81d20-7066-45e7-a091-d0992788c65a}</property>
+  <property name="kdenlive:control_uuid">{42b81d20-7066-45e7-a091-d0992788c65a}</property>
+  <property name="kdenlive:duration">00:00:00.880</property>
+  <property name="kdenlive:maxduration">22</property>
+  <property name="kdenlive:producer_type">17</property>
+  <property name="kdenlive:id">3</property>
+  <property name="kdenlive:clip_type">0</property>
+  <property name="kdenlive:file_size">0</property>
+  <property name="kdenlive:folderid">2</property>
+  <property name="kdenlive:sequenceproperties.audioTarget">1</property>
+  <property name="kdenlive:sequenceproperties.disablepreview">0</property>
+  <property name="kdenlive:sequenceproperties.position">18</property>
+  <property name="kdenlive:sequenceproperties.scrollPos">0</property>
+  <property name="kdenlive:sequenceproperties.tracks">4</property>
+  <property name="kdenlive:sequenceproperties.verticalzoom">1</property>
+  <property name="kdenlive:sequenceproperties.videoTarget">2</property>
+  <property name="kdenlive:sequenceproperties.zonein">0</property>
+  <property name="kdenlive:sequenceproperties.zoneout">75</property>
+  <property name="kdenlive:sequenceproperties.zoom">8</property>
+  <property name="kdenlive:sequenceproperties.groups">[
+    {
+        "children": [
+            {
+                "data": "2:0:-1",
+                "leaf": "clip",
+                "type": "Leaf"
+            },
+            {
+                "data": "1:0:-1",
+                "leaf": "clip",
+                "type": "Leaf"
+            }
+        ],
+        "type": "AVSplit"
+    },
+    {
+        "children": [
+            {
+                "data": "2:11:-1",
+                "leaf": "clip",
+                "type": "Leaf"
+            },
+            {
+                "data": "1:11:-1",
+                "leaf": "clip",
+                "type": "Leaf"
+            }
+        ],
+        "type": "AVSplit"
+    }
+]
+</property>
+  <property name="kdenlive:sequenceproperties.guides">[
+]
+</property>
+  <track producer="producer0"/>
+  <track producer="tractor0"/>
+  <track producer="tractor1"/>
+  <track producer="tractor2"/>
+  <track producer="tractor3"/>
+  <transition id="transition0">
+   <property name="a_track">0</property>
+   <property name="b_track">1</property>
+   <property name="mlt_service">mix</property>
+   <property name="kdenlive_id">mix</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+   <property name="accepts_blanks">1</property>
+   <property name="sum">1</property>
+  </transition>
+  <transition id="transition1">
+   <property name="a_track">0</property>
+   <property name="b_track">2</property>
+   <property name="mlt_service">mix</property>
+   <property name="kdenlive_id">mix</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+   <property name="accepts_blanks">1</property>
+   <property name="sum">1</property>
+  </transition>
+  <transition id="transition2">
+   <property name="a_track">0</property>
+   <property name="b_track">3</property>
+   <property name="compositing">0</property>
+   <property name="distort">0</property>
+   <property name="rotate_center">0</property>
+   <property name="mlt_service">qtblend</property>
+   <property name="kdenlive_id">qtblend</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+  </transition>
+  <transition id="transition3">
+   <property name="a_track">0</property>
+   <property name="b_track">4</property>
+   <property name="compositing">0</property>
+   <property name="distort">0</property>
+   <property name="rotate_center">0</property>
+   <property name="mlt_service">qtblend</property>
+   <property name="kdenlive_id">qtblend</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+  </transition>
+  <filter id="filter7">
+   <property name="window">75</property>
+   <property name="max_gain">20dB</property>
+   <property name="channel_mask">-1</property>
+   <property name="mlt_service">volume</property>
+   <property name="internal_added">237</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter8">
+   <property name="channel">-1</property>
+   <property name="mlt_service">panner</property>
+   <property name="internal_added">237</property>
+   <property name="start">0.5</property>
+   <property name="disable">1</property>
+  </filter>
+ </tractor>
+ <chain id="chain2" out="00:00:00.400">
+  <property name="length">11</property>
+  <property name="eof">continue</property>
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+  <entry in="00:00:00.000" out="00:00:00.400" producer="chain2"/>
+ </playlist>
+ <tractor id="tractor4" in="00:00:00.000" out="00:00:00.840">
+  <property name="kdenlive:projectTractor">1</property>
+  <track in="00:00:00.000" out="00:00:00.840" producer="{42b81d20-7066-45e7-a091-d0992788c65a}"/>
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+</mlt>
diff --git a/projects/qtblend-scale-small.kdenlive b/projects/qtblend-scale-small.kdenlive
new file mode 100644
index 0000000..30fe139
--- /dev/null
+++ b/projects/qtblend-scale-small.kdenlive
@@ -0,0 +1,1443 @@
+<?xml version='1.0' encoding='utf-8'?>
+<mlt LC_NUMERIC="C" producer="main_bin" root="" version="7.41.0">
+ <profile colorspace="709" description="HD 1080p 25 fps" display_aspect_den="9" display_aspect_num="16" frame_rate_den="1" frame_rate_num="25" height="1080" progressive="1" sample_aspect_den="1" sample_aspect_num="1" width="1920"/>
+ <producer id="producer1" in="00:00:00.000" out="00:00:23.280">
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+  <property name="eof">pause</property>
+  <property name="resource">0x800080ff</property>
+  <property name="aspect_ratio">1</property>
+  <property name="mlt_service">color</property>
+  <property name="kdenlive:clipname">Color Clip</property>
+  <property name="kdenlive:duration">00:00:05:00</property>
+  <property name="xml">was here</property>
+  <property name="seekable">1</property>
+  <property name="kdenlive:folderid">-1</property>
+  <property name="kdenlive:id">4</property>
+  <property name="kdenlive:control_uuid">{9ac24d95-8523-4239-a004-d7c651575971}</property>
+  <property name="mlt_image_format">rgb</property>
+  <property name="kdenlive:clip_type">2</property>
+  <property name="kdenlive:file_hash">b8b8b1feea5344793f5be3b18224f393</property>
+  <property name="kdenlive:monitorPosition">0</property>
+ </producer>
+ <producer id="producer4" in="00:00:00.000" out="00:00:04.960">
+  <property name="length">00:00:05.000</property>
+  <property name="eof">pause</property>
+  <property name="resource">footage/logo-small.png</property>
+  <property name="ttl">25</property>
+  <property name="aspect_ratio">1</property>
+  <property name="meta.media.progressive">1</property>
+  <property name="seekable">1</property>
+  <property name="format">2</property>
+  <property name="meta.media.width">500</property>
+  <property name="meta.media.height">281</property>
+  <property name="mlt_service">qimage</property>
+  <property name="kdenlive:duration">00:00:05:00</property>
+  <property name="xml">was here</property>
+  <property name="kdenlive:folderid">-1</property>
+  <property name="kdenlive:id">5</property>
+  <property name="kdenlive:control_uuid">{5d02f094-5cac-405c-b702-611be0e4c91b}</property>
+  <property name="kdenlive:clip_type">2</property>
+  <property name="kdenlive:file_size">15741</property>
+  <property name="kdenlive:kextractor">1</property>
+  <property name="kdenlive:file_hash">7650dda730cf4bbc9d963a78049a7aa9</property>
+ </producer>
+ <producer id="producer0" in="00:00:00.000" out="00:05:00.480">
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+  <property name="eof">continue</property>
+  <property name="resource">black</property>
+  <property name="aspect_ratio">1</property>
+  <property name="mlt_service">color</property>
+  <property name="kdenlive:playlistid">black_track</property>
+  <property name="mlt_image_format">rgba</property>
+  <property name="set.test_audio">0</property>
+ </producer>
+ <playlist id="playlist0">
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+ </playlist>
+ <playlist id="playlist1">
+  <property name="kdenlive:audio_track">1</property>
+ </playlist>
+ <tractor id="tractor0" in="00:00:00.000">
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+  <property name="kdenlive:trackheight">72</property>
+  <property name="kdenlive:timeline_active">1</property>
+  <property name="kdenlive:collapsed">0</property>
+  <property name="kdenlive:thumbs_format"/>
+  <property name="kdenlive:audio_rec"/>
+  <track hide="video" producer="playlist0"/>
+  <track hide="video" producer="playlist1"/>
+  <filter id="filter0">
+   <property name="window">75</property>
+   <property name="max_gain">20dB</property>
+   <property name="channel_mask">-1</property>
+   <property name="mlt_service">volume</property>
+   <property name="internal_added">237</property>
+   <property name="disable">1</property>
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+   <property name="mlt_service">panner</property>
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+   <property name="start">0.5</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter2">
+   <property name="iec_scale">0</property>
+   <property name="prefix">meta.media.audio_level.</property>
+   <property name="mlt_service">audiolevel</property>
+   <property name="internal_added">237</property>
+   <property name="dbpeak">1</property>
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+ </playlist>
+ <playlist id="playlist3">
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+  <property name="kdenlive:thumbs_format"/>
+  <property name="kdenlive:audio_rec"/>
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+   <property name="max_gain">20dB</property>
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+ </tractor>
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+ </playlist>
+ <playlist id="playlist5"/>
+ <tractor id="tractor2" in="00:00:00.000" out="00:00:00.440">
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+  <track hide="audio" producer="playlist4"/>
+  <track hide="audio" producer="playlist5"/>
+ </tractor>
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+    <property name="kdenlive_id">pan_zoom</property>
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+    <property name="rotation">00:00:00.000=0</property>
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+ </playlist>
+ <playlist id="playlist7"/>
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+  <track hide="audio" producer="playlist6"/>
+  <track hide="audio" producer="playlist7"/>
+ </tractor>
+ <tractor id="tractor4" in="00:00:00.000" out="00:00:00.440">
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+  <property name="kdenlive:maxduration">12</property>
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+  <property name="kdenlive:sequenceproperties.disablepreview">0</property>
+  <property name="kdenlive:sequenceproperties.documentuuid">{952efaaf-aa1a-416f-be73-abf0882f6aff}</property>
+  <property name="kdenlive:sequenceproperties.hasAudio">1</property>
+  <property name="kdenlive:sequenceproperties.hasVideo">1</property>
+  <property name="kdenlive:sequenceproperties.position">12</property>
+  <property name="kdenlive:sequenceproperties.scrollPos">0</property>
+  <property name="kdenlive:sequenceproperties.tracks">4</property>
+  <property name="kdenlive:sequenceproperties.tracksCount">4</property>
+  <property name="kdenlive:sequenceproperties.verticalzoom">1</property>
+  <property name="kdenlive:sequenceproperties.videoTarget">2</property>
+  <property name="kdenlive:sequenceproperties.zonein">0</property>
+  <property name="kdenlive:sequenceproperties.zoneout">13</property>
+  <property name="kdenlive:sequenceproperties.zoom">2</property>
+  <property name="kdenlive:sequenceproperties.groups">[
+]
+</property>
+  <property name="kdenlive:sequenceproperties.guides">[
+]
+</property>
+  <track producer="producer0"/>
+  <track producer="tractor0"/>
+  <track producer="tractor1"/>
+  <track producer="tractor2"/>
+  <track producer="tractor3"/>
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+   <property name="b_track">1</property>
+   <property name="duck_threshold">0</property>
+   <property name="duck_attenuation">-12</property>
+   <property name="duck_level">0</property>
+   <property name="duck_fade_in">1500</property>
+   <property name="duck_fade_out">250</property>
+   <property name="mlt_service">mix</property>
+   <property name="kdenlive_id">mix</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+   <property name="accepts_blanks">1</property>
+   <property name="sum">1</property>
+  </transition>
+  <transition id="transition1">
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+   <property name="b_track">2</property>
+   <property name="duck_threshold">0</property>
+   <property name="duck_attenuation">-12</property>
+   <property name="duck_level">0</property>
+   <property name="duck_fade_in">1500</property>
+   <property name="duck_fade_out">250</property>
+   <property name="mlt_service">mix</property>
+   <property name="kdenlive_id">mix</property>
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+   <property name="always_active">1</property>
+   <property name="accepts_blanks">1</property>
+   <property name="sum">1</property>
+  </transition>
+  <transition id="transition2">
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+   <property name="b_track">3</property>
+   <property name="compositing">0</property>
+   <property name="distort">0</property>
+   <property name="rotate_center">0</property>
+   <property name="mlt_service">qtblend</property>
+   <property name="kdenlive_id">qtblend</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+  </transition>
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+   <property name="rotate_center">0</property>
+   <property name="mlt_service">qtblend</property>
+   <property name="kdenlive_id">qtblend</property>
+   <property name="internal_added">237</property>
+   <property name="always_active">1</property>
+  </transition>
+  <filter id="filter9">
+   <property name="window">75</property>
+   <property name="max_gain">20dB</property>
+   <property name="channel_mask">-1</property>
+   <property name="mlt_service">volume</property>
+   <property name="internal_added">237</property>
+   <property name="disable">1</property>
+  </filter>
+  <filter id="filter10">
+   <property name="channel">-1</property>
+   <property name="mlt_service">panner</property>
+   <property name="internal_added">237</property>
+   <property name="start">0.5</property>
+   <property name="disable">1</property>
+  </filter>
+ </tractor>
+ <playlist id="main_bin">
+  <property name="kdenlive:folder.-1.2">Sequences</property>
+  <property name="kdenlive:sequenceFolder">2</property>
+  <property name="kdenlive:docproperties.activetimeline">{952efaaf-aa1a-416f-be73-abf0882f6aff}</property>
+  <property name="kdenlive:docproperties.audioChannels">2</property>
+  <property name="kdenlive:docproperties.binsort">6</property>
+  <property name="kdenlive:docproperties.browserurl">footage/</property>
+  <property name="kdenlive:docproperties.documentid">1785764501215</property>
+  <property name="kdenlive:docproperties.enableTimelineZone">0</property>
+  <property name="kdenlive:docproperties.enableexternalproxy">0</property>
+  <property name="kdenlive:docproperties.enableproxy">0</property>
+  <property name="kdenlive:docproperties.externalproxyparams">./;;.LRV;./;;.MP4</property>
+  <property name="kdenlive:docproperties.generateimageproxy">0</property>
+  <property name="kdenlive:docproperties.generateproxy">0</property>
+  <property name="kdenlive:docproperties.guidesCategories">[
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+    {
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+    {
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+    {
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+        "comment": "Category 7",
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+    {
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+        "comment": "Category 8",
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+    {
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+        "comment": "Category 9",
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+  <property name="kdenlive:docproperties.opensequences">{952efaaf-aa1a-416f-be73-abf0882f6aff}</property>
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+  <property name="kdenlive:docproperties.previewextension"/>
+  <property name="kdenlive:docproperties.previewparameters"/>
+  <property name="kdenlive:docproperties.profile">atsc_1080p_25</property>
+  <property name="kdenlive:docproperties.proxyextension"/>
+  <property name="kdenlive:docproperties.proxyimageminsize">2000</property>
+  <property name="kdenlive:docproperties.proxyimagesize">800</property>
+  <property name="kdenlive:docproperties.proxyminsize">1000</property>
+  <property name="kdenlive:docproperties.proxyparams"/>
+  <property name="kdenlive:docproperties.proxyresize">640</property>
+  <property name="kdenlive:docproperties.seekOffset">7500</property>
+  <property name="kdenlive:docproperties.sessionid">{e7afcd1d-642c-4f8c-b6df-20fa801fe8b8}</property>
+  <property name="kdenlive:docproperties.uuid">{952efaaf-aa1a-416f-be73-abf0882f6aff}</property>
+  <property name="kdenlive:docproperties.version">1.1</property>
+  <property name="kdenlive:expandedFolders"/>
+  <property name="kdenlive:binZoom">2</property>
+  <property name="kdenlive:extraBins">project_bin:-1:0</property>
+  <property name="kdenlive:documentnotes"/>
+  <property name="kdenlive:documentnotesversion">2</property>
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diff --git a/reference/qtblend-scale-small.mp4 b/reference/qtblend-scale-small.mp4
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