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Hi,
I'm assuming you are referring to this page in the manual, but I don't see the keyboard shortcut mentioned: https://www.kinovea.org/help/en/observa … rison.html

By default the shortcuts are bound like this:
- F8: moves the videos to the synchronization point.
- F9: toggles superposition on/off.

I'm thinking maybe you want the other video to "catch up" to the first one, without moving them back to the sync point?
Ah I see in the old manual that this action was bound to F9 so that must be it. There is no longer any shortcut for this at this point and F9 toggles superposition. I'll check why it was removed.

I was thinking about this and another way could be to do it in the reverse direction with a "startlist". I think this could be useful for various scenarios. Even during training, since you could make a startlist for the various exercises you are about to do.

Something like this:

1. First you would create or export a CSV file containing the information of the sequence of videos that you are about to capture.
2. This CSV file needs to have column headers, for example it would look like this:

bib,name
2542,Tajay GAYLE
2206,Radek JUŠKA
2983,Marquis DENDY
2550,Carey MCLEOD
2200,Alejandro A. PARADA
2869,Simon EHAMMER
2449,Jeswin ALDRIN
2898,Thobias MONTLER
2410,Miltiadis TENTOGLOU
2552,Wayne PINNOCK
3041,William WILLIAMS
2170,Jianan WANG

3. From the moment this file is loaded, each new capture will consume one line of the file.
4. The column headers would be available to use in the file name templates. For example:

template: "longjump-%datetime_%bib-%name"

expansion: "longjump-20230904-1316_2542-Tajay GAYLE.mp4"

Now each time we record a video it would be saved with the right info directly in the filename.

Some considerations:
- If you record two cameras the file will probably have to be loaded in each screen separately.
- There should be a way to navigate within the list before recording, to fix mis-ordering and spurious recordings.
- It would be good to have the variables visible before the recording, for confirmation and in the context of training it could even be used as a cue to know what you are supposed to do next. At the very least there should be a button next to the filename to toggle between the template and its expansion, then it can be a global option where we show the future filename in big font on top of the capture screen (not part of the recording).

What do you think?

Quick update. I think a first tentative release for version 2023.1 is ready, I'll make a full post tomorrow with links.

I fixed some more bugs and updated the language strings for French, Spanish and Italian. These are the only languages I feel comfortable enough doing this with, but as I added/changed many menus and user interface the other translations generally fell behind. Help is greatly appreciated here -> https://hosted.weblate.org/engage/kinovea/

My code signing certificate expired and in the meantime the requirements have changed so apparently now I'll need to buy a more expensive certificate (+$300/year) plus a piece of hardware in order to sign the binaries, so the first release is not going to be signed. I'll provide the SHA1 hash on twitter for integrity checking, so at least anyone can verify themselves, but Windows will raise some warning messages during the installation.

There is a list of issues and important limitations that I haven't had time to address but I don't want to delay this any further.

Hi, I should be able to post a first version over the week-end.

Let's continue the discussion on github here: https://github.com/Kinovea/Kinovea/issues/121

La primera cosa es que solo funciona con las cámaras de tipo Machine Vision porque otras cámaras no tienen el nivel de control suficiente.

Si tienes una cámara de este tipo, puedes experimentar con reducir la resolución vertical, hasta que sea bajo de 16 pixeles (por ejemplo: 1024 × 4 px). Aconsejo ponerlo en lo mínimo posible. A partir de este momento, entrara en el modo escondido/experimental de finish line / photo-finish. En lugar de mostrar las imágenes individualmente, colocara las nuevas "bandas" bajo de las precedentes, continuamente. Con esa baja resolución, puedes aumentar la frecuencia de imágenes hasta 1000 o 2000 fps o más, según la cámara.

Nota: es solo activado bajando la resolución vertical, porque esas cámaras funcionan así. Bajar la resolución horizontal no permite aumentar la frecuencia, el sensor lee linea por linea de todas maneras. Hay que disminuir el numero de lineas. Entonces en la practica deberás poner la cámara físicamente tumbada al 90°, para que el efecto photo-finish sea el correcto.

En el fichero XML de preferencias, encontrarás un nodo `PhotofinishConfiguration`. Por el momento es el único modo de cambiar la configuración.

<PhotofinishConfiguration>
      <ThresholdHeight>16</ThresholdHeight>
      <ConsolidationHeight>2</ConsolidationHeight>
      <OutputHeight>1000</OutputHeight>
      <Waterfall>true</Waterfall>
      <WaterfallFlushHeight>100</WaterfallFlushHeight>
</PhotofinishConfiguration>

No sé exactamente si será útil para el salto de longitud pero sería interesante que más personas experimentaran con esto.