Video support! #348

gwendal-h · 2023-10-03T17:28:37Z

New features supported for the 5 inch Turing screen:

File upload
Delete file
List files and directories (internal storage and SD card)
Start/stop a video
Draw image / texts / progress bar on the video

1 small fix:

Fix the UPDATE_BITMAP command when drawing a big image (image size > 65535)

Fix the UPDATE_BITMAP command when drawing a big image (image size > 65535) This bug happened when trying to draw a long text with a big font size.

New features supported for the 5 inch Turing screen: - File upload - Delete file - List files and directories (internal storage and SD card) - Start/stop a video - Draw image / texts / progress bar on the video

gwendal-h · 2023-10-03T20:55:07Z

Sample code file "test_new_features.py" is provided to demontrate the new features.
New sample code file "simple-program-video-mode.py" is basically "simple-program.py" but in video mode.

Video dimensions must be 480 * 800. I added some sample videos as an example.

I still have to improve the performance: the refresh is a bit slow and it takes too much CPU.

mathoudebine · 2023-10-04T21:23:27Z

Nice job! I'm looking forward to testing it this week-end when I got some time 🚀

Reduces a lot the data sent on the serial bus.

mathoudebine · 2023-10-07T10:27:28Z

My Turing 5" just broke 😞 I was testing your code and everything was working fine but suddenly my computer restarted and I think it broke the screen, now it connects/disconnects in loop and won't respond to commands, I need to order a new one...

Fix update image payload: last 250 bytes packet must not end with 0xef 0x69. and last 250 bytes packet must not be "0x69 0x0000..." nor "0xef 0x69 0x0000..."

Improved refresh rate with JIT compiling the function _get_visible_segments with numba

gwendal-h · 2023-10-08T13:46:34Z

My Turing 5" just broke 😞 I was testing your code and everything was working fine but suddenly my computer restarted and I think it broke the screen, now it connects/disconnects in loop and won't respond to commands, I need to order a new one...

Oh no! what happened ? Was it like a micro power outage that broke it ? You could try pluging the screen with the other cable (There's the USB-C cable and the 4-wire cable that you can connect to your mother board directly.)

gwendal-h · 2023-10-08T13:53:01Z

So this week-end I was able to fix the last remaining issue: sometimes the resfresh would freeze and the status reply was "NeedReSend = 1" ...

Turns out the last 250 bytes packet of the image payload can not end with 0xEF69.
And the last 250 bytes packet can not be 0x69000000... or 0xEF69000000...

So in that case I add a "dummy" visible pixel field to fix the image payload format.

Now the script "simple-program-video-mode.py" is running smoothly.

But man that was time consuming to find this one :).

gwendal-h · 2023-10-08T14:32:46Z

I also tried to improve the refresh time to the best i could.
I ended up using numba to just-in-time compile the function _get_visible_pixels. (Python was quite slow in those loops)

On my computer the average refresh time went from 0.056 s down to 0.016 s ! (so much less CPU consumption in real application!)

Without numba :

refresh_without_numba.mp4

With numba :

refresh_with_numba.mp4

n-i-x · 2024-01-07T00:26:52Z

Fixes #439

mathoudebine · 2024-01-10T12:48:44Z

Hi, sorry I did not find time to review your PR before but I will try to do it as soon as possible!

n-i-x

This is excellent work and it works great with my 5" Turing display.

Have you figured out a way to copy files FROM the device locally? I'd like to backup the stock videos off my device.

n-i-x · 2024-01-11T04:12:37Z

simple-program-video-mode.py

+# Set your COM port e.g. COM3 for Windows, /dev/ttyACM0 for Linux, etc. or "AUTO" for auto-discovery
+# COM_PORT = "/dev/ttyACM0"
+# COM_PORT = "COM5"
+COM_PORT = "COM4"


This should be "AUTO"

n-i-x · 2024-01-11T04:12:50Z

simple-program-video-mode.py

+# - SIMU for 3.5" simulated LCD (image written in screencap.png)
+# - SIMU5 for 5" simulated LCD
+# To identify your smart screen: https://github.com/mathoudebine/turing-smart-screen-python/wiki/Hardware-revisions
+REVISION = "C"


This should be "A"

n-i-x · 2024-01-11T04:14:01Z

library/lcd/lcd_comm_rev_c.py

+
+ def ListFiles(self, dir_path : str):
+ pyd = bytearray()
+ pyd.extend(len(dir_path).to_bytes(1))


pyd.extend(len(dir_path).to_bytes(1, 'big'))

Fix throughout

n-i-x · 2024-01-11T04:18:24Z

simple-program-video-mode.py

+ lcd_comm.SetBrightness(level=50)
+
+ # Check if video is loaded and upload video if needed.
+ video_size = lcd_comm.GetFileSize("/mnt/SDCARD/video/particle_wave.mp4")


My device doesn't have an SDCard, but there are plenty of videos on internal storage. Maybe check if there are any internal videos and randomly select one instead of trying to upload a video to the SDCARD which may not exist?

Or, split these examples out into an sdcard and an internal storage version? There may even be space available on internal storage to push the videos.

Mine had nothing on internal storage.

You can upload a video on internal storage, with the "UploadFile" function by setting the argument "destination_path".

For example: destination_path = "/root/video/video.mp4"

I don't know if it's possible to download video from the device's internal storage. The software provided by the manufacturer doesn't have that feature.

peterng1618 · 2024-06-29T17:24:38Z

@gwendal-h Would you please update this to the latest release? 🙏

gwendal-h · 2024-07-01T11:00:48Z

@mathoudebine Could you merge my pull request to the main branch ?

gwendal-h added 2 commits October 3, 2023 19:25

Fix UPDATE_BITMAP when image_size > 65535

46f5398

Fix the UPDATE_BITMAP command when drawing a big image (image size > 65535) This bug happened when trying to draw a long text with a big font size.

Video support!

67e51f3

New features supported for the 5 inch Turing screen: - File upload - Delete file - List files and directories (internal storage and SD card) - Start/stop a video - Draw image / texts / progress bar on the video

gwendal-h changed the title ~~Fix UPDATE_BITMAP when image_size > 65535~~ Video support! Oct 3, 2023

gwendal-h mentioned this pull request Oct 3, 2023

5" Commands #90

Closed

Improved computation time of ResfreshVideoOverlay

be83f96

gwendal-h added 2 commits October 6, 2023 01:35

Only send the updated pixels when refreshing overlay

bf397ad

Reduces a lot the data sent on the serial bus.

Improved _get_diff_image computation with numpy

a761f46

gwendal-h added 2 commits October 8, 2023 15:31

Fix screen update freeze (video mode)

54349a8

Fix update image payload: last 250 bytes packet must not end with 0xef 0x69. and last 250 bytes packet must not be "0x69 0x0000..." nor "0xef 0x69 0x0000..."

Improved refresh rate with numba

58aa2f2

Improved refresh rate with JIT compiling the function _get_visible_segments with numba

mathoudebine linked an issue Jan 10, 2024 that may be closed by this pull request

Adding long string of text fails #439

Closed

n-i-x reviewed Jan 11, 2024

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Video support! #348

Video support! #348

gwendal-h commented Oct 3, 2023 •

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Video support! #348

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Video support! #348

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