kopia lustrzana https://github.com/hsbp/rpi-sstv
39 wiersze
1.2 KiB
Python
39 wiersze
1.2 KiB
Python
#!/usr/bin/env python
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"""
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This example streams the raw floating point (freq, msec) tuples to stdout
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in 4-byte single precision format (8 bytes per tuple), so that it can be
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processed outside PySSTV.
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Usage example using unixsstv/gen_values:
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beacon.py | gen_values 44100 | play -r 44100 -t f32 -c 1 --norm -
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"""
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from PIL import Image, ImageFont, ImageDraw
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from pysstv.color import MartinM2
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from subprocess import check_output
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from cStringIO import StringIO
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import RPi.GPIO as GPIO
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import struct, sys
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TX_PIN = 18
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def main():
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img = Image.open(StringIO(check_output(['raspistill', '--output', '-',
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'--width', '320', '--height', '256', '-e', 'bmp'])))
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img = img.resize((MartinM2.WIDTH, MartinM2.HEIGHT))
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font = ImageFont.load_default()
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draw = ImageDraw.Draw(img)
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draw.text((17, 17), "HA5KDR", (0, 0, 0), font=font)
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draw.text((16, 16), "HA5KDR", (255, 255, 255), font=font)
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sstv = MartinM2(img, 44100, 16)
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sstv.vox_enabled = True
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for freq, msec in sstv.gen_freq_bits():
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sys.stdout.write(struct.pack('ff', freq, msec))
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(TX_PIN, GPIO.OUT)
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GPIO.output(TX_PIN, True)
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if __name__ == '__main__':
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main()
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