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Preview optimized for slow Raspi

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This commit is contained in:
Balthasar Reuter
2016-10-05 23:45:13 +02:00
parent 1ac4a4521c
commit 843a9c2dd8
1 changed files with 7 additions and 3 deletions
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10
photobooth.py
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@@ -41,7 +41,7 @@ gpio_trigger_channel = 23 # pin 16 in all Raspi-Versions
gpio_lamp_channel = 4 # pin 7 in all Raspi-Versions gpio_lamp_channel = 4 # pin 7 in all Raspi-Versions
# Waiting time in seconds for posing # Waiting time in seconds for posing
pose_time = 5 pose_time = 3
# Display time for assembled picture # Display time for assembled picture
display_time = 10 display_time = 10
@@ -319,12 +319,16 @@ class Photobooth:
def show_counter(self, seconds): def show_counter(self, seconds):
if self.camera.has_preview(): if self.camera.has_preview():
tic = clock() tic = clock()
while clock() - tic < seconds: toc = clock() - tic
while toc < seconds:
self.display.clear() self.display.clear()
self.camera.take_preview("/tmp/photobooth_preview.jpg") self.camera.take_preview("/tmp/photobooth_preview.jpg")
self.display.show_picture("/tmp/photobooth_preview.jpg", flip=True) self.display.show_picture("/tmp/photobooth_preview.jpg", flip=True)
self.display.show_message(str(seconds - int(clock() - tic))) self.display.show_message(str(seconds - int(toc)))
self.display.apply() self.display.apply()
# Limit progress to 1 "second" per preview (e.g., too slow on Raspi 1)
toc = min(toc + 1, clock() - tic)
else: else:
for i in range(seconds): for i in range(seconds):
self.display.clear() self.display.clear()