tami/gst-plugin-linescan
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update launch_with_signal.py

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This commit is contained in:
yair
2025-12-21 23:24:31 +02:00
parent 91bdecc879
commit 1ed54bb2d1
1 changed files with 19 additions and 5 deletions
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24
gst/linescan/launch_with_signal.py
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@@ -186,12 +186,15 @@ def on_rollover(linescan, buffer):
print(f"[ROL LOVER WARNING] Unsupported format {format_str}, saving as-is")
data = data.reshape((height, width, -1))
# Create PIL Image and save
# Create PIL Image and flip vertically
if channels == 1:
img = Image.fromarray(data, mode='L')
else:
img = Image.fromarray(data, mode='RGB')
# Flip vertically to match display output
img = img.transpose(Image.FLIP_TOP_BOTTOM)
if file_format == 'png':
img.save(filename, 'PNG')
else:
@@ -318,7 +321,8 @@ Examples:
queue1 = Gst.ElementFactory.make("queue", "queue1")
linescan = Gst.ElementFactory.make("linescan", "linescan")
# Display output
# Output flip and display
videoflip_output = Gst.ElementFactory.make("videoflip", "flip_output")
videoconvert = Gst.ElementFactory.make("videoconvert", "convert")
videosink = Gst.ElementFactory.make("autovideosink", "videosink")
@@ -331,6 +335,7 @@ Examples:
'queue1': queue1,
'linescan': linescan,
'videoflip': videoflip,
'videoflip_output': videoflip_output,
'videoconvert': videoconvert,
'videosink': videosink
}
@@ -406,8 +411,13 @@ Examples:
linescan.set_property("direction", 1) # vertical
linescan.set_property("output-size", 1900)
# Configure output flip (vertical flip)
# Available methods: 0:none, 1:clockwise, 2:rotate-180, 3:counterclockwise,
# 4:horizontal-flip, 5:vertical-flip, 6:upper-left-diagonal, 7:upper-right-diagonal, 8:automatic
videoflip_output.set_property("method", 5)
if args.debug:
print(f"Camera rotated 90° clockwise, then vertical linescan with output-size=1900")
print(f"Camera rotated 90° clockwise, then vertical linescan with output-size=1900, output flipped vertically")
# Connect rollover signal - files are saved in the callback
linescan.connect("rollover", on_rollover)
@@ -419,6 +429,7 @@ Examples:
pipeline.add(videoflip)
pipeline.add(queue1)
pipeline.add(linescan)
pipeline.add(videoflip_output)
pipeline.add(videoconvert)
pipeline.add(videosink)
@@ -438,8 +449,11 @@ Examples:
if not queue1.link(linescan):
print("ERROR: Could not link queue1 to linescan")
return -1
if not linescan.link(videoconvert):
print("ERROR: Could not link linescan to videoconvert")
if not linescan.link(videoflip_output):
print("ERROR: Could not link linescan to videoflip_output")
return -1
if not videoflip_output.link(videoconvert):
print("ERROR: Could not link videoflip_output to videoconvert")
return -1
if not videoconvert.link(videosink):
print("ERROR: Could not link videoconvert to videosink")