def testimage_pattern_320x240_rgb888_png(self):
filename = 'testpattern.png'
"""NOTE the rgb888 -> rgb565 conversion implemented in ffmeg is
slightly different to the technique applied in image_to_raw().
This is why a different raw file is used, also testpattern_rgb565.bmp
is already in rgb565 format, the png is full 16/24 bit depth.
"""
filename = os.path.join(IMAGE_320X240_DIR, filename)
canon_filename = os.path.splitext(filename)[0] + '.raw'
im = pylcdsysinfo.Image.open(filename)
raw_data = pylcdsysinfo.image_to_raw(im)
f = open(canon_filename, 'rb')
canon_data = f.read()
f.close()
self.assertEqual(canon_data, raw_data, 'does not match canon')
try:
slot = int(sys.argv[1])
if not 0 <= slot <= 7:
raise ValueError("Out of bounds")
except (ValueError, IndexError):
usage()
infile = sys.argv[2]
if not os.path.isfile(infile):
print("No such file '%s'" % (infile), file=sys.stderr)
sys.exit(1)
if pylcdsysinfo.Image:
im = pylcdsysinfo.Image.open(infile)
im = pylcdsysinfo.simpleimage_resize(im)
rawfile = pylcdsysinfo.image_to_raw(im)
else:
# lets hope ffmpeg is available......
print('PIL not available, fallback to spawning ffmpeg')
# Hack - redirect stderr to /dev/null to prevent noisy ffmpeg output
bmpfile = subprocess.Popen("ffmpeg -f image2 -i %s -vcodec bmp -pix_fmt rgb565 -f image2 - 2>/dev/null" % (infile),
shell=True, stdout=subprocess.PIPE).stdout.read()
d = LCDSysInfo()
if pylcdsysinfo.Image:
d.write_rawimage_to_flash(large_image_indexes[slot], rawfile)
else:
d.write_image_to_flash(large_image_indexes[slot], bmpfile)
