def get_camera_caps(self) -> Gst.Caps:
width_min, width_max = self.get_cam_node_range("Width")
height_min, height_max = self.get_cam_node_range("Height")
genicam_formats = self.get_cam_node_entries("PixelFormat")
supported_pixel_formats = [
self.get_format_from_genicam(pf) for pf in genicam_formats
]
supported_pixel_formats = [
pf for pf in supported_pixel_formats if pf is not None
]
camera_caps = Gst.Caps.new_empty()
for pixel_format in supported_pixel_formats:
camera_caps.append_structure(
Gst.Structure(
pixel_format.cap_type,
format=pixel_format.gst,
width=Gst.IntRange(range(width_min, width_max)),
height=Gst.IntRange(range(height_min, height_max)),
))
return camera_caps
def testGetValue(self):
Gst.init(None)
st = Gst.Structure.new_empty("video/x-raw")
st["range"] = Gst.IntRange(range(0, 10, 2))
value = st["range"]
self.assertEqual(value, range(0, 10, 2))
def testConstructor(self):
Gst.init(None)
r = Gst.IntRange(range(0, 10, 2))
self.assertEqual(r.range, range(0, 10, 2))
self.assertRaises(TypeError, Gst.IntRange, range(1, 10, 2))
self.assertRaises(TypeError, Gst.IntRange, range(0, 9, 2))
self.assertRaises(TypeError, Gst.IntRange, range(10, 0))
self.assertRaises(TypeError, Gst.IntRange, 1)
self.assertRaises(TypeError, Gst.IntRange)
def test_fixate_caps_with_defalt_values(self):
voaacenc_caps = Gst.Caps.from_string(
"audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)1;"
"audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)2, channel-mask=(bitmask)0x0000000000000003"
)
yt_audiorest = Gst.Caps(
"audio/x-raw,channels=6,channel-mask=0x3f,rate={48000,96000};"
"audio/x-raw,channels=2,rate={48000,96000}")
vorbis_caps = Gst.Caps(
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)1;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)2, channel-mask=(bitmask)0x0000000000000003;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)3, channel-mask=(bitmask)0x0000000000000007;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)4, channel-mask=(bitmask)0x0000000000000033;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)5, channel-mask=(bitmask)0x0000000000000037;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)6, channel-mask=(bitmask)0x000000000000003f;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)7, channel-mask=(bitmask)0x0000000000000d0f;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)8, channel-mask=(bitmask)0x0000000000000c3f;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)[ 9, 255 ], channel-mask=(bitmask)0x0000000000000000"
)
audio_defaults = {
'channels': Gst.IntRange(range(1, 2147483647)),
"rate": Gst.IntRange(range(8000, GLib.MAXINT))
}
dataset = [(
voaacenc_caps, yt_audiorest, audio_defaults, None,
Gst.Caps(
"audio/x-raw, channels=2,rate=48000,channel-mask=(bitmask)0x03"
)),
(vorbis_caps, None, audio_defaults,
Gst.Caps('audio/x-raw,channels=1,rate=8000'))]
for data in dataset:
res = fixate_caps_with_default_values(*data[:-1])
print(res)
self.assertTrue(res.is_equal_fixed(data[-1]),
"%s != %s" % (res, data[-1]))
from matplotlib import pyplot as plt
from matplotlib.backends.backend_agg import FigureCanvasAgg
except ImportError:
Gst.error('audioplot requires numpy, numpy_ringbuffer and matplotlib')
raise
Gst.init(None)
AUDIO_FORMATS = [f.strip() for f in
GstAudio.AUDIO_FORMATS_ALL.strip('{ }').split(',')]
ICAPS = Gst.Caps(Gst.Structure('audio/x-raw',
format=Gst.ValueList(AUDIO_FORMATS),
layout='interleaved',
rate = Gst.IntRange(range(1, GLib.MAXINT)),
channels = Gst.IntRange(range(1, GLib.MAXINT))))
OCAPS = Gst.Caps(Gst.Structure('video/x-raw',
format='ARGB',
width=Gst.IntRange(range(1, GLib.MAXINT)),
height=Gst.IntRange(range(1, GLib.MAXINT)),
framerate=Gst.FractionRange(Gst.Fraction(1, 1),
Gst.Fraction(GLib.MAXINT, 1))))
DEFAULT_WINDOW_DURATION = 1.0
DEFAULT_WIDTH = 640
DEFAULT_HEIGHT = 480
DEFAULT_FRAMERATE_NUM = 25
DEFAULT_FRAMERATE_DENOM = 1
def test_fixate_caps_with_defalt_values(self):
voaacenc_caps = Gst.Caps.from_string(
"audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)1;"
"audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)2, channel-mask=(bitmask)0x0000000000000003"
)
yt_audiorest = Gst.Caps(
"audio/x-raw,channels=6,channel-mask=0x3f,rate={48000,96000};"
"audio/x-raw,channels=2,rate={48000,96000}")
vorbis_caps = Gst.Caps(
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)1;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)2, channel-mask=(bitmask)0x0000000000000003;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)3, channel-mask=(bitmask)0x0000000000000007;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)4, channel-mask=(bitmask)0x0000000000000033;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)5, channel-mask=(bitmask)0x0000000000000037;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)6, channel-mask=(bitmask)0x000000000000003f;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)7, channel-mask=(bitmask)0x0000000000000d0f;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)8, channel-mask=(bitmask)0x0000000000000c3f;"
"audio/x-raw, format=(string)F32LE, layout=(string)interleaved, rate=(int)[ 1, 200000 ], channels=(int)[ 9, 255 ], channel-mask=(bitmask)0x0000000000000000"
)
avenc_ac3_caps = Gst.Caps(
"audio/x-raw, channel-mask=(bitmask)0x0000000000000000, channels=(int)1, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000003, channels=(int)2, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000103, channels=(int)3, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000007, channels=(int)3, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000c03, channels=(int)4, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000033, channels=(int)4, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000107, channels=(int)4, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000c07, channels=(int)5, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000037, channels=(int)5, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000000c, channels=(int)2, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000000b, channels=(int)3, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000010b, channels=(int)4, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000000f, channels=(int)4, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000c0b, channels=(int)5, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000003b, channels=(int)5, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000010f, channels=(int)5, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x0000000000000c0f, channels=(int)6, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
" audio/x-raw, channel-mask=(bitmask)0x000000000000003f, channels=(int)6, rate=(int){ 48000, 44100, 32000 }, layout=(string)interleaved, format=(string)F32LE;"
)
audio_defaults = {
"channels": Gst.IntRange(range(1, 2147483647)),
"rate": Gst.IntRange(range(8000, GLib.MAXINT))
}
dataset = [
(voaacenc_caps, yt_audiorest, audio_defaults, None,
Gst.Caps(
"audio/x-raw, channels=2,rate=48000,channel-mask=(bitmask)0x03"
)),
(vorbis_caps, None, audio_defaults, None,
Gst.Caps("audio/x-raw,channels=1,rate=8000")),
(avenc_ac3_caps, None, audio_defaults,
Gst.Caps("audio/x-raw, channels=(int)6, rate=(int)44100"),
Gst.Caps("audio/x-raw, channels=(int)6, rate=(int)44100")),
]
for template, restrictions, default_values, prev_vals, expected in dataset:
res = fixate_caps_with_default_values(template, restrictions,
default_values, prev_vals)
self.assertTrue(res.is_equal_fixed(expected),
"%s != %s" % (res, expected))
def testRepr(self):
Gst.init(None)
self.assertEqual(repr(Gst.IntRange(range(0, 10, 2))),
'<Gst.IntRange [0,10,2]>')
import Jetson.GPIO as GPIO
import os
import threadsched
gi.require_version('Gst', '1.0')
gi.require_version('GstBase', '1.0')
gi.require_version('GstVideo', '1.0')
from gi.repository import Gst, GLib, GObject, GstBase, GstVideo
Gst.init(None)
VIDEOCAPS = Gst.Caps(Gst.Structure("video/x-bayer",
width=Gst.IntRange(range(1, GLib.MAXINT)),
height=Gst.IntRange(range(1, GLib.MAXINT)),
framerate=Gst.FractionRange(Gst.Fraction(1,1), Gst.Fraction(GLib.MAXINT, 1))
))
class ImgProc(GstBase.BaseTransform):
__gstmetadata__ = ("ImgProc", "Filter", "Process image data", "Arne Caspari")
__gsttemplates__ = (
Gst.PadTemplate.new("src",
Gst.PadDirection.SRC,
Gst.PadPresence.ALWAYS,
VIDEOCAPS ),
Gst.PadTemplate.new("sink",