converts PhotoFilmStrip projects to Shotcut projects
version: 1.0.14 date: 2024-01-28 author: bestia.dev repository: Github
Hashtags: #rustlang #tutorial #sqlite #xml #cli
My projects on GitHub are more like a tutorial than a finished product: bestia-dev tutorials.
PhotoFilmStrip has a great simple UI to make slideshows. I use it to make videos of my travels.
First I choose a song as a background. That defines the duration of the video.
Then I add images. PhotoFilmStrip adds some random animations to every image. That's ok.
The duration of the image is automatically calculated to fill the song duration. Great.
I then add subtitles to every image. Eventually, I can modify the animation and change the order of the images.
The UI is so easy, that even my wife likes to use it.
Finally, PhotoFilmStrip renders the slideshow as a mp4 file and the subtitles as a srt file. That is fine, but...
I prefer to have the subtitles embedded in the video, so every video player will show them exactly how I want it. I encountered a lot of odd problems with separated srt files in different video players online and offline.
There are some technics to embed the subtitles into mp4 using ffmpeg or VLC. But I am a programmer and every problem is an excuse to start a new project. In Rust, of course.
For my video editing, I use Shotcut. It is simple and works for me. I would like to export the PhotoFilmStrip project to Shotcut.
Shotcut can embed "subtitles" into the video and maybe later I could make some video editing that is not possible in PhotoFilmStrip.
So the problem is simple. I need a simple tool to make a one-time conversion from PhotoFilmStrip to Shotcut.
After that, I can continue to work in Shotcut to modify the video at my will without the limitations of PhotoFilmStrip.
PhotoFilmStrip saves the project in an SQLite database in a pfs file. I could read that with Rust.
Shotcut saves the projects in XML format in an mlt file. I could write that in Rust.
It is time to discover the elements of these 2 formats and how to transform them.
I need to read SQLite file pfs.
https://github.com/rusqlite/rusqlite
VSCode extension: https://marketplace.visualstudio.com/items?itemName=qwtel.sqlite-viewer
table picture columns:
filename,
width height,
start_left, start_top, start_width, start_height,
target_left, target_top, target_width, target_height,
duration, comment,
what means duration=7 ? not seconds? I will have all same duration, so no problem.
This is the rectangle inside the image of the original size.
First image is 4:3 and not 16:9: C:\Users\luciano\Downloads\photofilmstrip_format\LF2023-12-11 11-07-09 Minja Luciano.jpg 4000 3000 0 181 4000 2250 79 744 3920 2205 7 ¡Hola México!
Second image is portrait: C:\Users\luciano\Downloads\photofilmstrip_format\LF2023-12-15 10-46-45 minja es alta.jpg 2268 4032 0 772 2268 1275 0 1793 2268 1275 7 Minja Alto
Third image 16:9: C:\Users\luciano\Downloads\photofilmstrip_format\LF2023-12-13 13-42-18.JPG 6000 3376 0 0 6000 3375 973 802 4500 2531
Fourth image 16:9 C:\Users\luciano\Downloads\photofilmstrip_format\LF2023-12-14 15-18-14.JPG 6000 3376 1500 0 4500 2531.25 0 0 6000 3375
In the Example_3_images.mlt there are:
- 1 song on the V1 playlist
- 3 images with animation and transition on the V2 playlist and
- 3 subtitles on the V3 playlist
The music is defined with these XML elements:
<chain id="chain0" out="00:03:26.763">
<property name="length">00:03:26.796</property>
<property name="eof">pause</property>
<property name="resource">Cielito lindo_2.mp3</property>
<property name="mlt_service">avformat-novalidate</property>
<property name="meta.media.nb_streams">1</property>
<property name="meta.media.0.stream.type">audio</property>
<property name="meta.media.0.codec.sample_fmt">fltp</property>
<property name="meta.media.0.codec.sample_rate">48000</property>
<property name="meta.media.0.codec.channels">2</property>
<property name="meta.media.0.codec.name">mp3float</property>
<property name="meta.media.0.codec.long_name">MP3 (MPEG audio layer 3)</property>
<property name="meta.media.0.codec.bit_rate">173608</property>
<property name="meta.attr.0.stream.encoder.markup">LAME3.100</property>
<property name="seekable">1</property>
<property name="audio_index">0</property>
<property name="video_index">-1</property>
<property name="creation_time">2024-01-09T03:42:17</property>
<property name="astream">0</property>
<property name="shotcut:skipConvert">1</property>
<property name="shotcut:hash">93c2fac0ff95295326d7e61a9113c409</property>
<property name="xml">was here</property>
</chain>
<playlist id="playlist0">
<property name="shotcut:video">1</property>
<property name="shotcut:name">V1</property>
<entry producer="chain0" in="00:00:00.000" out="00:00:11.418"/>
</playlist>The resource defines the file's name in the same folder as mlt.
The 3 images are defined like this:
<producer id="producer0" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">LF2023-12-11 11-07-09 Minja Luciano.jpg</property>
<property name="ttl">1</property>
<property name="aspect_ratio">1</property>
<property name="meta.media.progressive">1</property>
<property name="seekable">1</property>
<property name="format">1</property>
<property name="meta.media.width">4000</property>
<property name="meta.media.height">3000</property>
<property name="mlt_service">qimage</property>
<property name="creation_time">2023-12-11T17:07:14</property>
<property name="shotcut:skipConvert">1</property>
<property name="shotcut:hash">49b86054f8a507f8007afebf1204ec95</property>
<property name="shotcut:caption">LF2023-12-11 11-07-09 Minja Luciano.jpg</property>
<property name="meta.shotcut.vui">1</property>
<filter id="filter0" out="00:00:02.970">
<property name="background">color:#00000000</property>
<property name="mlt_service">affine</property>
<property name="shotcut:filter">affineSizePosition</property>
<property name="transition.fill">1</property>
<property name="transition.distort">0</property>
<property name="transition.rect">00:00:00.033=-9.15305 -65.6166 1919.29 1439.47 1;00:00:02.871=-3.44725 -299.554 1919.29 1439.47 1</property>
<property name="transition.valign">middle</property>
<property name="transition.halign">center</property>
<property name="shotcut:animIn">00:00:00.000</property>
<property name="shotcut:animOut">00:00:00.000</property>
<property name="transition.threads">0</property>
<property name="transition.fix_rotate_x">0</property>
</filter>
</producer>
<producer id="producer1" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">LF2023-12-15 10-46-45 minja es alta.jpg</property>
<property name="ttl">1</property>
<property name="aspect_ratio">1</property>
<property name="meta.media.progressive">1</property>
<property name="seekable">1</property>
<property name="format">1</property>
<property name="meta.media.width">2268</property>
<property name="meta.media.height">4032</property>
<property name="mlt_service">qimage</property>
<property name="creation_time">2023-12-15T16:46:47</property>
<property name="shotcut:skipConvert">1</property>
<property name="shotcut:hash">eb4241e90288fa46456eedb129e23c6d</property>
<property name="shotcut:caption">LF2023-12-15 10-46-45 minja es alta.jpg</property>
<property name="meta.shotcut.vui">1</property>
<filter id="filter1" out="00:00:03.267">
<property name="background">color:#00000000</property>
<property name="mlt_service">affine</property>
<property name="shotcut:filter">affineSizePosition</property>
<property name="transition.fill">1</property>
<property name="transition.distort">0</property>
<property name="transition.rect">00:00:00.330=-331.909 -800 2363.06 4201 1;00:00:02.772=-331.909 -1924.05 2363.06 4201 1</property>
<property name="transition.valign">middle</property>
<property name="transition.halign">center</property>
<property name="shotcut:animIn">00:00:00.000</property>
<property name="shotcut:animOut">00:00:00.000</property>
<property name="transition.threads">0</property>
<property name="transition.fix_rotate_x">0</property>
</filter>
</producer>
<tractor id="tractor0" in="00:00:00.000" out="00:00:00.330">
<property name="shotcut:transition">lumaMix</property>
<track producer="producer0" in="00:00:02.640" out="00:00:02.970"/>
<track producer="producer1" in="00:00:00.000" out="00:00:00.330"/>
<transition id="transition0" out="00:00:00.330">
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="factory">loader</property>
<property name="mlt_service">luma</property>
<property name="alpha_over">1</property>
<property name="fix_background_alpha">1</property>
</transition>
<transition id="transition1" out="00:00:00.330">
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="mlt_service">mix</property>
<property name="start">-1</property>
<property name="accepts_blanks">1</property>
</transition>
</tractor>
<producer id="producer2" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">LF2023-12-13 13-42-18.JPG</property>
<property name="ttl">1</property>
<property name="aspect_ratio">1</property>
<property name="meta.media.progressive">1</property>
<property name="seekable">1</property>
<property name="format">1</property>
<property name="meta.media.width">6000</property>
<property name="meta.media.height">3376</property>
<property name="mlt_service">qimage</property>
<property name="creation_time">2023-12-13T20:42:18</property>
<property name="shotcut:skipConvert">1</property>
<property name="shotcut:hash">7c879a105b45925f2bfc779a3b8d0b52</property>
<property name="shotcut:caption">LF2023-12-13 13-42-18.JPG</property>
<property name="meta.shotcut.vui">1</property>
<filter id="filter2" out="00:00:03.267">
<property name="background">color:#00000000</property>
<property name="mlt_service">affine</property>
<property name="shotcut:filter">affineSizePosition</property>
<property name="transition.fill">1</property>
<property name="transition.distort">0</property>
<property name="transition.rect">00:00:00.396=0 0 1919.43 1080 1;00:00:02.970=-479.858 -270 2879.15 1620 1</property>
<property name="transition.valign">middle</property>
<property name="transition.halign">center</property>
<property name="shotcut:animIn">00:00:00.000</property>
<property name="shotcut:animOut">00:00:00.000</property>
<property name="transition.threads">0</property>
</filter>
</producer>
<tractor id="tractor1" in="00:00:00.000" out="00:00:00.330">
<property name="shotcut:transition">lumaMix</property>
<track producer="producer1" in="00:00:02.937" out="00:00:03.267"/>
<track producer="producer2" in="00:00:00.000" out="00:00:00.330"/>
<transition id="transition2" out="00:00:00.330">
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="factory">loader</property>
<property name="mlt_service">luma</property>
<property name="alpha_over">1</property>
<property name="fix_background_alpha">1</property>
</transition>
<transition id="transition3" out="00:00:00.330">
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="mlt_service">mix</property>
<property name="start">-1</property>
<property name="accepts_blanks">1</property>
</transition>
</tractor>
<producer id="producer3" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">LF2023-12-14 15-18-14.JPG</property>
<property name="ttl">1</property>
<property name="aspect_ratio">1</property>
<property name="meta.media.progressive">1</property>
<property name="seekable">1</property>
<property name="format">1</property>
<property name="meta.media.width">6000</property>
<property name="meta.media.height">3376</property>
<property name="mlt_service">qimage</property>
<property name="creation_time">2023-12-14T22:18:14</property>
<property name="shotcut:skipConvert">1</property>
<property name="shotcut:hash">40f4246ad1988e820f60bddc2ca0713c</property>
<property name="shotcut:caption">LF2023-12-14 15-18-14.JPG</property>
<property name="xml">was here</property>
<property name="meta.shotcut.vui">1</property>
<filter id="filter3" out="00:00:02.871">
<property name="background">color:#00000000</property>
<property name="mlt_service">affine</property>
<property name="shotcut:filter">affineSizePosition</property>
<property name="transition.fill">1</property>
<property name="transition.distort">0</property>
<property name="transition.rect">00:00:00.363=-479.858 -270 2879.15 1620 1;00:00:02.739=0 0 1919.43 1080 1</property>
<property name="transition.valign">middle</property>
<property name="transition.halign">center</property>
<property name="shotcut:animIn">00:00:00.000</property>
<property name="shotcut:animOut">00:00:00.000</property>
<property name="transition.threads">0</property>
</filter>
</producer>
<tractor id="tractor2" in="00:00:00.000" out="00:00:00.297">
<property name="shotcut:transition">lumaMix</property>
<track producer="producer2" in="00:00:02.970" out="00:00:03.267"/>
<track producer="producer3" in="00:00:00.000" out="00:00:00.297"/>
<transition id="transition4" out="00:00:00.297">
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="factory">loader</property>
<property name="mlt_service">luma</property>
<property name="alpha_over">1</property>
<property name="fix_background_alpha">1</property>
</transition>
<transition id="transition5" out="00:00:00.297">
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="mlt_service">mix</property>
<property name="start">-1</property>
<property name="accepts_blanks">1</property>
</transition>
</tractor>
<playlist id="playlist1">
<property name="shotcut:video">1</property>
<property name="shotcut:name">V2</property>
<property name="shotcut:lock">0</property>
<entry producer="producer0" in="00:00:00.000" out="00:00:02.607"/>
<entry producer="tractor0" in="00:00:00.000" out="00:00:00.330"/>
<entry producer="producer1" in="00:00:00.363" out="00:00:02.904"/>
<entry producer="tractor1" in="00:00:00.000" out="00:00:00.330"/>
<entry producer="producer2" in="00:00:00.363" out="00:00:02.937"/>
<entry producer="tractor2" in="00:00:00.000" out="00:00:00.297"/>
<entry producer="producer3" in="00:00:00.330" out="00:00:02.871"/>
</playlist>The producer is the video, the tractor is the transition. They must be defined before the playlist contains a reference to them.
The id is changing sequentially like producer0, producer1, producer2,... or tractor0, tractor1, tractor2,...
This looks like a serialization of internal structures in the code.
This looks like an alias to "max" out="04:00:00.000" or name="length">04:00:00.033.
There are 2 points in time for animation.
First change the size of the image. From the original to the new. Then use the position to move the new image size.
First image: 00:00:00.033=-9.15305 -65.6166 1919.29 1439.47 1;00:00:02.871=-3.44725 -299.554 1919.29 1439.47 1
Start:
Position -9 -66
Size 1919 1439
End:
Position -3 -300
Size 1919 1439
Second image 00:00:00.330=-331.909 -800 2363.06 4201 1;00:00:02.772=-331.909 -1924.05 2363.06 4201 1
Start:
Position -332 -800
Size 2363 4201
End
Position -332 -1924
Size 2363 4201
The subtitles are defined like this:
<producer id="producer4" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">#00000000</property>
<property name="aspect_ratio">1</property>
<property name="mlt_service">color</property>
<property name="mlt_image_format">rgba</property>
<property name="shotcut:caption">transparent</property>
<property name="ignore_points">0</property>
<property name="meta.shotcut.vui">1</property>
<property name="xml">was here</property>
<property name="seekable">1</property>
<filter id="filter4" out="00:00:02.607">
<property name="argument">¡Hola México!</property>
<property name="geometry">0 900 1920 180 1</property>
<property name="family">Verdana</property>
<property name="size">80</property>
<property name="weight">1000</property>
<property name="style">normal</property>
<property name="fgcolour">#ffffffff</property>
<property name="bgcolour">#00000000</property>
<property name="olcolour">#aa000000</property>
<property name="pad">0</property>
<property name="halign">center</property>
<property name="valign">bottom</property>
<property name="outline">3</property>
<property name="mlt_service">dynamictext</property>
<property name="shotcut:filter">dynamicText</property>
<property name="shotcut:usePointSize">1</property>
<property name="shotcut:pointSize">60</property>
</filter>
</producer>
<producer id="producer5" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">#00000000</property>
<property name="aspect_ratio">1</property>
<property name="mlt_service">color</property>
<property name="mlt_image_format">rgba</property>
<property name="shotcut:caption">transparent</property>
<property name="ignore_points">0</property>
<property name="meta.shotcut.vui">1</property>
<property name="xml">was here</property>
<property name="seekable">1</property>
<filter id="filter5" out="00:00:02.541">
<property name="argument">Minja el signal es
demasiado Alto por ti</property>
<property name="geometry">0 900 1920 180 1</property>
<property name="family">Verdana</property>
<property name="size">80</property>
<property name="weight">1000</property>
<property name="style">normal</property>
<property name="fgcolour">#ffffffff</property>
<property name="bgcolour">#00000000</property>
<property name="olcolour">#aa000000</property>
<property name="pad">0</property>
<property name="halign">center</property>
<property name="valign">bottom</property>
<property name="outline">3</property>
<property name="mlt_service">dynamictext</property>
<property name="shotcut:filter">dynamicText</property>
<property name="shotcut:usePointSize">1</property>
<property name="shotcut:pointSize">60</property>
</filter>
</producer>
<producer id="producer6" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">#00000000</property>
<property name="aspect_ratio">1</property>
<property name="mlt_service">color</property>
<property name="mlt_image_format">rgba</property>
<property name="shotcut:caption">transparent</property>
<property name="ignore_points">0</property>
<property name="meta.shotcut.vui">1</property>
<property name="xml">was here</property>
<property name="seekable">1</property>
<filter id="filter6" in="00:00:00.165" out="00:00:02.739">
<property name="argument">Murales es mejor que graffiti</property>
<property name="geometry">0 900 1920 180 1</property>
<property name="family">Verdana</property>
<property name="size">80</property>
<property name="weight">1000</property>
<property name="style">normal</property>
<property name="fgcolour">#ffffffff</property>
<property name="bgcolour">#00000000</property>
<property name="olcolour">#aa000000</property>
<property name="pad">0</property>
<property name="halign">center</property>
<property name="valign">bottom</property>
<property name="outline">3</property>
<property name="mlt_service">dynamictext</property>
<property name="shotcut:filter">dynamicText</property>
<property name="shotcut:usePointSize">1</property>
<property name="shotcut:pointSize">60</property>
</filter>
</producer>
<producer id="producer7" in="00:00:00.000" out="04:00:00.000">
<property name="length">04:00:00.033</property>
<property name="eof">pause</property>
<property name="resource">#00000000</property>
<property name="aspect_ratio">1</property>
<property name="mlt_service">color</property>
<property name="mlt_image_format">rgba</property>
<property name="shotcut:caption">transparent</property>
<property name="ignore_points">0</property>
<property name="meta.shotcut.vui">1</property>
<property name="xml">was here</property>
<property name="seekable">1</property>
<filter id="filter7" in="00:00:00.165" out="00:00:02.706">
<property name="argument">Mucho murales en Mexico</property>
<property name="geometry">0 900 1920 180 1</property>
<property name="family">Verdana</property>
<property name="size">80</property>
<property name="weight">1000</property>
<property name="style">normal</property>
<property name="fgcolour">#ffffffff</property>
<property name="bgcolour">#00000000</property>
<property name="olcolour">#aa000000</property>
<property name="pad">0</property>
<property name="halign">center</property>
<property name="valign">bottom</property>
<property name="outline">3</property>
<property name="mlt_service">dynamictext</property>
<property name="shotcut:filter">dynamicText</property>
<property name="shotcut:usePointSize">1</property>
<property name="shotcut:pointSize">60</property>
</filter>
</producer>
<playlist id="playlist2">
<property name="shotcut:video">1</property>
<property name="shotcut:name">V3</property>
<entry producer="producer4" in="00:00:00.000" out="00:00:02.607"/>
<blank length="00:00:00.363"/>
<entry producer="producer5" in="00:00:00.000" out="00:00:02.541"/>
<blank length="00:00:00.363"/>
<entry producer="producer6" in="00:00:00.165" out="00:00:02.739"/>
<blank length="00:00:00.330"/>
<entry producer="producer7" in="00:00:00.165" out="00:00:02.706"/>
</playlist>Interestingly enough, PhotoFilmStrip and Shotcut have chosen the opposite approach to image size.
In PhotoFilmStrip the original size of the image is stored. Then a rectangle with a proportion of screen 16:9 is drawn inside the image. It represents the screen size. With these two sizes, we can easily understand what part of the image is shown on the screen. The in-drawn rectangle can never be outside the image. There are never black stripes on the screen without the image. Images are sometimes not full on the screen. But that is ok because we have image animation.
In Shotcut they use the opposite approach. First, they adjust the image size to the screen size. In all my cases (16:9 landscape, 9:16 portrait, 4:3) they adjust the size proportionally using the height, not the width. This sometimes causes left and right black stripes on the screen. The image is always full inside the screen but can become very small.
Then you can use a filter to alter the size and make the image bigger to show only partially on the screen. These are the numbers stored in the data.
The formula for converting the size is simple:
- PhotoFilmStrip: calculate the ratio of height ratio=photo_new_height/original_heigh
- we need the reversed ratio reversed_ratio = 1/ratio
- Shotcut: get the size of the image that can be contained in the screen. This can be limited by height or by width. r1 = 1920/original_width r2 = 1080/original_heigh
if r1 < r2 then shot_image_width=original_widthr1 shot_image_height=original_heighr1 else shot_image_width=original_widthr2 shot_image_height=original_heighr2 end 4. we use the reversed_ration to calculate the new size in Shotcut shot_new_width=shot_image_widthreversed_ratio shot_new_height=shot_image_heightreversed_ratio
Test the formula with these numbers
First image 4:3: original_width=4000 original_heigh=3000 photo_new_height=2250 pos_x1=0 pos_y1=181 pos_x2= 79 pos_y2=744
ratio= 2250/3000=0,75 reversed_ratio= 1/0,75=1,3333
r1=1920/4000=0,48 r2=1080/3000=0,36 r1 !< r2 shot_image_width=40000,36=1440 shot_image_height=30000,36=1080
shot_new_width=14401,3333=1920 shot_new_height=10801,3333=1440
pos_x1=0*-1,3333=0 pos_y1=181*-1,3333=-241 pos_x2= 79*-1,3333=-106 pos_y2=744*-1,3333=-992
Second image is portrait 9:16: original_width=2268 original_heigh=4032 photo_new_height=1275 pos_x1=0 pos_y1=772 pos_x2=0 pos_y2=1793
ratio= 1275/4032=0,3162 reversed_ratio= 1/0,3162=3,1624
r1=1920/2268=0,8466 r2=1080/4032=0,2679 r1 !< r2 shot_image_width=22680,2679=607,5 shot_image_height=40320,2679=1080
shot_new_width=607,53,1624=1920 shot_new_height=10803,16242=3415
pos_x1=0*-3,1624=0 pos_y1=772*-3,1624=-2441 pos_x2= 0*-3,1624=0 pos_y2=1793*-3,1624=-5670
Third image 16:9: original_width=6000 original_heigh=3376 photo_new_height=2531 pos_x1=0 pos_y1=0 pos_x2=973 pos_y2=802
ratio= 2531/3376=0,7497 reversed_ratio= 1/0,7497=1,3339
r1=1920/6000=0,32 r2=1080/3376=0,32 r1 = r2 shot_image_width=60000,32=1920 shot_image_height=33760,32=1080
shot_new_width=19201,3339=2562 shot_new_height=10801,3339=1440
pos_x1=0*-1,3339=0 pos_y1=0*-1,3339=-0 pos_x2= 973*-1,3339=-1298 pos_y2=802*-1,3339=-1070
Fourth image 16:9 original_width=6000 original_heigh=3376 photo_new_height=2531 pos_x1=1500 pos_y1=0 pos_x2=0 pos_y2=0
ratio= 2531/3376=0,7497 reversed_ratio= 1/0,7497=1,3339
r1=1920/6000=0,32 r2=1080/3376=0,32 r1 = r2 shot_image_width=60000,32=1920 shot_image_height=33760,32=1080
shot_new_width=19201,3339=2562 shot_new_height=10801,3339=1440
pos_x1=1500*-1,3339=2000 pos_y1=0*-1,3339=-0 pos_x2= 0*-1,3339=0 pos_y2=0*-1,3339=0
From the image size calculation, we have the reversed_ratio. We multiply the pos_X and pos_y and make it negative.
My open-source projects are free as a beer (MIT license).
I just love programming.
But I need also to drink. If you find my projects and tutorials helpful, please buy me a beer by donating to my PayPal.
You know the price of a beer in your local bar ;-)
So I can drink a free beer for your health :-)
Na zdravje! Alla salute! Prost! Nazdravlje! 🍻
//bestia.dev
//github.com/bestia-dev
//bestiadev.substack.com
//youtube.com/@bestia-dev-tutorials