def test_sub_image(self):
W = 640
H = 480
buf = bytearray(W*H*4)
#the pixel value is derived from the sum of its coordinates (modulo 256)
for x in range(W):
for y in range(H):
#4 bytes per pixel:
for i in range(4):
buf[y*(W*4) + x*4 + i] = (x+y) % 256
img = ImageWrapper(0, 0, W, H, buf, "RGBX", 24, W*4, planes=ImageWrapper.PACKED, thread_safe=True)
#print("image pixels head=%s" % (binascii.hexlify(img.get_pixels()[:128]), ))
for x in range(3):
SW, SH = 6, 6
sub = img.get_sub_image(x, 0, SW, SH)
#print("%s.get_sub_image%s=%s" % (img, (x, 0, SW, SH), sub))
assert sub.get_rowstride()==(SW*4)
sub_buf = sub.get_pixels()
#print("pixels for %ix%i: %i" % (SW, SH, len(sub_buf)))
#print("pixels=%s" % (binascii.hexlify(sub_buf), ))
#verify that the pixels are set to 1 / 0:
for y in range(SH):
v = (x+y)%256
for i in range(4):
av = sub_buf[y*(SW*4)+i]
try:
#python2 (char)
av = ord(av)
except:
#python3 (int already)
av = int(av)
assert av==v, "expected value %#x for pixel (0, %i) of sub-image %s at (%i, 0), but got %#x" % (v, y, sub, x, av)
start = time.time()
copy = img.get_sub_image(0, 0, W, H)
end = time.time()
if SHOW_PERF:
print("image wrapper full %ix%i copy speed: %iMB/s" % (W, H, (W*4*H)/(end-start)/1024/1024))
assert copy.get_pixels()==img.get_pixels()
total = 0
N = 10
for i in range(N):
region = (W//4-N//2+i, H//4-N//2+i, W//2, H//2)
start = time.time()
copy = img.get_sub_image(*region)
end = time.time()
total += end-start
if SHOW_PERF:
print("image wrapper sub image %ix%i copy speed: %iMB/s" % (W//2, H//2, N*(W//2*4*H//2)/total/1024/1024))
def process_draw(self, packet):
wid, x, y, width, height, encoding, pixels, _, rowstride, client_options = packet[1:11]
#never modify mmap packets
if encoding=="mmap":
return True
#we have a proxy video packet:
rgb_format = client_options.get("rgb_format", "")
log("proxy draw: client_options=%s", client_options)
def send_updated(encoding, compressed_data, client_options):
#update the packet with actual encoding data used:
packet[6] = encoding
packet[7] = compressed_data
packet[10] = client_options
log("returning %s bytes from %s", len(compressed_data), len(pixels))
return (wid not in self.lost_windows)
def passthrough(strip_alpha=True):
log("proxy draw: %s passthrough (rowstride: %s vs %s, strip alpha=%s)", rgb_format, rowstride, client_options.get("rowstride", 0), strip_alpha)
if strip_alpha:
#passthrough as plain RGB:
Xindex = rgb_format.upper().find("X")
if Xindex>=0 and len(rgb_format)==4:
#force clear alpha (which may be garbage):
newdata = bytearray(pixels)
for i in range(len(pixels)/4):
newdata[i*4+Xindex] = chr(255)
packet[9] = client_options.get("rowstride", 0)
cdata = bytes(newdata)
else:
cdata = pixels
new_client_options = {"rgb_format" : rgb_format}
else:
#preserve
cdata = pixels
new_client_options = client_options
wrapped = Compressed("%s pixels" % encoding, cdata)
#FIXME: we should not assume that rgb32 is supported here...
#(we may have to convert to rgb24..)
return send_updated("rgb32", wrapped, new_client_options)
proxy_video = client_options.get("proxy", False)
if PASSTHROUGH and (encoding in ("rgb32", "rgb24") or proxy_video):
#we are dealing with rgb data, so we can pass it through:
return passthrough(proxy_video)
elif not self.video_encoder_types or not client_options or not proxy_video:
#ensure we don't try to re-compress the pixel data in the network layer:
#(re-add the "compressed" marker that gets lost when we re-assemble packets)
packet[7] = Compressed("%s pixels" % encoding, packet[7])
return True
#video encoding: find existing encoder
ve = self.video_encoders.get(wid)
if ve:
if ve in self.lost_windows:
#we cannot clean the video encoder here, there may be more frames queue up
#"lost-window" in encode_loop will take care of it safely
return False
#we must verify that the encoder is still valid
#and scrap it if not (ie: when window is resized)
if ve.get_width()!=width or ve.get_height()!=height:
log("closing existing video encoder %s because dimensions have changed from %sx%s to %sx%s", ve, ve.get_width(), ve.get_height(), width, height)
ve.clean()
ve = None
elif ve.get_encoding()!=encoding:
log("closing existing video encoder %s because encoding has changed from %s to %s", ve.get_encoding(), encoding)
ve.clean()
ve = None
#scaling and depth are proxy-encoder attributes:
scaling = client_options.get("scaling", (1, 1))
depth = client_options.get("depth", 24)
rowstride = client_options.get("rowstride", rowstride)
quality = client_options.get("quality", -1)
speed = client_options.get("speed", -1)
timestamp = client_options.get("timestamp")
image = ImageWrapper(x, y, width, height, pixels, rgb_format, depth, rowstride, planes=ImageWrapper.PACKED)
if timestamp is not None:
image.set_timestamp(timestamp)
#the encoder options are passed through:
encoder_options = client_options.get("options", {})
if not ve:
#make a new video encoder:
spec = self._find_video_encoder(encoding, rgb_format)
if spec is None:
#no video encoder!
from xpra.server.picture_encode import PIL_encode, PIL, warn_encoding_once
if PIL is None:
warn_encoding_once("no-video-no-PIL", "no video encoder found for rgb format %s, sending as plain RGB!" % rgb_format)
return passthrough()
log("no video encoder available: sending as jpeg")
coding, compressed_data, client_options, _, _, _, _ = PIL_encode("jpeg", image, quality, speed, False)
return send_updated(coding, compressed_data, client_options)
log("creating new video encoder %s for window %s", spec, wid)
ve = spec.make_instance()
#dst_formats is specified with first frame only:
dst_formats = client_options.get("dst_formats")
if dst_formats is not None:
#save it in case we timeout the video encoder,
#so we can instantiate it again, even from a frame no>1
self.video_encoders_dst_formats = dst_formats
else:
assert self.video_encoders_dst_formats, "BUG: dst_formats not specified for proxy and we don't have it either"
dst_formats = self.video_encoders_dst_formats
ve.init_context(width, height, rgb_format, dst_formats, encoding, quality, speed, scaling, {})
self.video_encoders[wid] = ve
self.video_encoders_last_used_time[wid] = time.time() #just to make sure this is always set
else:
if quality>=0:
ve.set_encoding_quality(quality)
if speed>=0:
ve.set_encoding_speed(speed)
#actual video compression:
log("proxy compression using %s with quality=%s, speed=%s", ve, quality, speed)
data, client_options = ve.compress_image(image, encoder_options)
self.video_encoders_last_used_time[wid] = time.time()
return send_updated(ve.get_encoding(), Compressed(encoding, data), client_options)
def process_draw(self, packet):
wid, x, y, width, height, encoding, pixels, _, rowstride, client_options = packet[
1:11]
encoding = bytestostr(encoding)
#never modify mmap packets
if encoding in ("mmap", "scroll"):
return True
client_options = typedict(client_options)
#we have a proxy video packet:
rgb_format = client_options.strget("rgb_format", "")
enclog("proxy draw: encoding=%s, client_options=%s", encoding,
client_options)
def send_updated(encoding, compressed_data, updated_client_options):
#update the packet with actual encoding data used:
packet[6] = encoding
packet[7] = compressed_data
packet[10] = updated_client_options
enclog("returning %s bytes from %s, options=%s",
len(compressed_data), len(pixels), updated_client_options)
return wid not in self.lost_windows
def passthrough(strip_alpha=True):
enclog(
"proxy draw: %s passthrough (rowstride: %s vs %s, strip alpha=%s)",
rgb_format, rowstride, client_options.intget("rowstride",
0), strip_alpha)
if strip_alpha:
#passthrough as plain RGB:
Xindex = rgb_format.upper().find("X")
if Xindex >= 0 and len(rgb_format) == 4:
#force clear alpha (which may be garbage):
newdata = bytearray(pixels)
for i in range(len(pixels) / 4):
newdata[i * 4 + Xindex] = chr(255)
packet[9] = client_options.intget("rowstride", 0)
cdata = bytes(newdata)
else:
cdata = pixels
new_client_options = {"rgb_format": rgb_format}
else:
#preserve
cdata = pixels
new_client_options = client_options
wrapped = Compressed("%s pixels" % encoding, cdata)
#rgb32 is always supported by all clients:
return send_updated("rgb32", wrapped, new_client_options)
proxy_video = client_options.boolget("proxy", False)
if PASSTHROUGH_RGB and (encoding in ("rgb32", "rgb24") or proxy_video):
#we are dealing with rgb data, so we can pass it through:
return passthrough(proxy_video)
if not self.video_encoder_types or not client_options or not proxy_video:
#ensure we don't try to re-compress the pixel data in the network layer:
#(re-add the "compressed" marker that gets lost when we re-assemble packets)
packet[7] = Compressed("%s pixels" % encoding, packet[7])
return True
#video encoding: find existing encoder
ve = self.video_encoders.get(wid)
if ve:
if ve in self.lost_windows:
#we cannot clean the video encoder here, there may be more frames queue up
#"lost-window" in encode_loop will take care of it safely
return False
#we must verify that the encoder is still valid
#and scrap it if not (ie: when window is resized)
if ve.get_width() != width or ve.get_height() != height:
enclog(
"closing existing video encoder %s because dimensions have changed from %sx%s to %sx%s",
ve, ve.get_width(), ve.get_height(), width, height)
ve.clean()
ve = None
elif ve.get_encoding() != encoding:
enclog(
"closing existing video encoder %s because encoding has changed from %s to %s",
ve.get_encoding(), encoding)
ve.clean()
ve = None
#scaling and depth are proxy-encoder attributes:
scaling = client_options.inttupleget("scaling", (1, 1))
depth = client_options.intget("depth", 24)
rowstride = client_options.intget("rowstride", rowstride)
quality = client_options.intget("quality", -1)
speed = client_options.intget("speed", -1)
timestamp = client_options.intget("timestamp")
image = ImageWrapper(x,
y,
width,
height,
pixels,
rgb_format,
depth,
rowstride,
planes=ImageWrapper.PACKED)
if timestamp is not None:
image.set_timestamp(timestamp)
#the encoder options are passed through:
encoder_options = client_options.dictget("options", {})
if not ve:
#make a new video encoder:
spec = self._find_video_encoder(encoding, rgb_format)
if spec is None:
#no video encoder!
enc_pillow = get_codec("enc_pillow")
if not enc_pillow:
if first_time("no-video-no-PIL-%s" % rgb_format):
enclog.warn(
"Warning: no video encoder found for rgb format %s",
rgb_format)
enclog.warn(" sending as plain RGB")
return passthrough(True)
enclog("no video encoder available: sending as jpeg")
coding, compressed_data, client_options = enc_pillow.encode(
"jpeg", image, quality, speed, False)[:3]
return send_updated(coding, compressed_data, client_options)
enclog("creating new video encoder %s for window %s", spec, wid)
ve = spec.make_instance()
#dst_formats is specified with first frame only:
dst_formats = client_options.strtupleget("dst_formats")
if dst_formats is not None:
#save it in case we timeout the video encoder,
#so we can instantiate it again, even from a frame no>1
self.video_encoders_dst_formats = dst_formats
else:
if not self.video_encoders_dst_formats:
raise Exception(
"BUG: dst_formats not specified for proxy and we don't have it either"
)
dst_formats = self.video_encoders_dst_formats
ve.init_context(width, height, rgb_format, dst_formats, encoding,
quality, speed, scaling, {})
self.video_encoders[wid] = ve
self.video_encoders_last_used_time[wid] = monotonic(
) #just to make sure this is always set
#actual video compression:
enclog("proxy compression using %s with quality=%s, speed=%s", ve,
quality, speed)
data, out_options = ve.compress_image(image, quality, speed,
encoder_options)
#pass through some options if we don't have them from the encoder
#(maybe we should also use the "pts" from the real server?)
for k in ("timestamp", "rgb_format", "depth", "csc"):
if k not in out_options and k in client_options:
out_options[k] = client_options[k]
self.video_encoders_last_used_time[wid] = monotonic()
return send_updated(ve.get_encoding(), Compressed(encoding, data),
out_options)
def test_restride(self):
#restride of planar is not supported:
img = ImageWrapper(0, 0, 1, 1, ["0"*10, "0"*10, "0"*10, "0"*10],
"YUV420P", 24, 10, 3, planes=ImageWrapper.PLANAR_4)
img.set_planes(ImageWrapper.PLANAR_3)
img.clone_pixel_data()
assert img.may_restride() is False
img = ImageWrapper(0, 0, 1, 1, memoryview(b"0"*4), "BGRA", 24, 4, 4, planes=ImageWrapper.PACKED)
img.clone_pixel_data()
assert img.may_restride() is False
img = ImageWrapper(0, 0, 10, 10, b"0"*40*10, "BGRA", 24, 40, 4, planes=ImageWrapper.PACKED)
#restride bigger:
img.restride(80)
#change more attributes:
img.set_timestamp(img.get_timestamp()+1)
img.set_pixel_format("RGBA")
img.set_palette(())
img.set_pixels("1"*10)
assert img.allocate_buffer(0, 1)==0
assert img.get_palette()==()
assert img.is_thread_safe()
assert img.get_gpu_buffer() is None
img.set_rowstride(20)
def get_image(self, x=0, y=0, width=0, height=0):
start = time.time()
metrics = get_virtualscreenmetrics()
if self.metrics is None or self.metrics != metrics:
#new metrics, start from scratch:
self.metrics = metrics
self.clean()
dx, dy, dw, dh = metrics
if width == 0:
width = dw
if height == 0:
height = dh
#clamp rectangle requested to the virtual desktop size:
if x < dx:
width -= x - dx
x = dx
if y < dy:
height -= y - dy
y = dy
if width > dw:
width = dw
if height > dh:
height = dh
if not self.dc:
self.wnd = GetDesktopWindow()
self.dc = GetWindowDC(self.wnd)
assert self.dc, "failed to get a drawing context from the desktop window %s" % self.wnd
self.bit_depth = GetDeviceCaps(self.dc, win32con.BITSPIXEL)
self.memdc = CreateCompatibleDC(self.dc)
assert self.memdc, "failed to get a compatible drawing context from %s" % self.dc
self.bitmap = CreateCompatibleBitmap(self.dc, width, height)
assert self.bitmap, "failed to get a compatible bitmap from %s" % self.dc
r = SelectObject(self.memdc, self.bitmap)
if r == 0:
log.error("Error: cannot select bitmap object")
return None
select_time = time.time()
log("get_image up to SelectObject (%s) took %ims",
REGION_CONSTS.get(r, r), (select_time - start) * 1000)
try:
if BitBlt(self.memdc, 0, 0, width, height, self.dc, x, y,
win32con.SRCCOPY) == 0:
e = ctypes.get_last_error()
#rate limit the error message:
now = time.time()
if now - self.bitblt_err_time > 10:
log.error("Error: failed to blit the screen, error %i", e)
self.bitblt_err_time = now
return None
except Exception as e:
log("BitBlt error", exc_info=True)
log.error("Error: cannot capture screen")
log.error(" %s", e)
return None
bitblt_time = time.time()
log("get_image BitBlt took %ims", (bitblt_time - select_time) * 1000)
rowstride = roundup(width * self.bit_depth // 8, 2)
buf_size = rowstride * height
pixels = ctypes.create_string_buffer(b"", buf_size)
log("GetBitmapBits(%#x, %#x, %#x)", self.bitmap, buf_size,
ctypes.addressof(pixels))
r = GetBitmapBits(self.bitmap, buf_size, ctypes.byref(pixels))
if r == 0:
log.error("Error: failed to copy screen bitmap data")
return None
if r != buf_size:
log.warn(
"Warning: truncating pixel buffer, got %i bytes but expected %i",
r, buf_size)
pixels = pixels[:r]
log("get_image GetBitmapBits took %ims",
(time.time() - bitblt_time) * 1000)
assert pixels, "no pixels returned from GetBitmapBits"
if self.bit_depth == 32:
rgb_format = "BGRX"
elif self.bit_depth == 30:
rgb_format = "r210"
elif self.bit_depth == 24:
rgb_format = "BGR"
elif self.bit_depth == 16:
rgb_format = "BGR565"
elif self.bit_depth == 8:
rgb_format = "RLE8"
else:
raise Exception("unsupported bit depth: %s" % self.bit_depth)
bpp = self.bit_depth // 8
v = ImageWrapper(x,
y,
width,
height,
pixels,
rgb_format,
self.bit_depth,
rowstride,
bpp,
planes=ImageWrapper.PACKED,
thread_safe=True)
if self.bit_depth == 8:
count = GetSystemPaletteEntries(self.dc, 0, 0, None)
log("palette size: %s", count)
palette = []
if count > 0:
buf = (PALETTEENTRY * count)()
r = GetSystemPaletteEntries(self.dc, 0, count,
ctypes.byref(buf))
#we expect 16-bit values, so bit-shift them:
for p in buf:
palette.append(
(p.peRed << 8, p.peGreen << 8, p.peBlue << 8))
v.set_palette(palette)
log("get_image%s=%s took %ims", (x, y, width, height), v,
(time.time() - start) * 1000)
return v
def get_image(self, x, y, width, height, logger=None):
v = get_rgb_rawdata(self.window, x, y, width, height, logger=logger)
if v is None:
return None
return ImageWrapper(*v)
def get_image(self, x, y, w, h): pixels = "0"*w*4*h return ImageWrapper(x, y, w, h, pixels, "BGRA", 32, w*4, 4, ImageWrapper.PACKED, True, None)
def convert_image_rgb(self, image):
start = time.time()
iplanes = image.get_planes()
width = image.get_width()
height = image.get_height()
stride = image.get_rowstride()
pixels = image.get_pixels()
#log("convert_image(%s) planes=%s, pixels=%s, size=%s", image, iplanes, type(pixels), len(pixels))
assert iplanes==ImageWrapper.PACKED, "we only handle packed data as input!"
assert image.get_pixel_format()==self.src_format, "invalid source format: %s (expected %s)" % (image.get_pixel_format(), self.src_format)
assert width>=self.src_width and height>=self.src_height, "expected source image with dimensions of at least %sx%s but got %sx%s" % (self.src_width, self.src_height, width, height)
#adjust work dimensions for subsampling:
#(we process N pixels at a time in each dimension)
divs = get_subsampling_divs(self.dst_format)
wwidth = dimdiv(self.dst_width, max([x_div for x_div, _ in divs]))
wheight = dimdiv(self.dst_height, max([y_div for _, y_div in divs]))
globalWorkSize, localWorkSize = self.get_work_sizes(wwidth, wheight)
#input image:
iformat = pyopencl.ImageFormat(self.channel_order, pyopencl.channel_type.UNSIGNED_INT8)
shape = (stride//4, self.src_height)
log("convert_image() type=%s, input image format=%s, shape=%s, work size: local=%s, global=%s", type(pixels), iformat, shape, localWorkSize, globalWorkSize)
idata = pixels
if type(idata)==_memoryview:
idata = memoryview_to_bytes(idata)
if type(idata)==str:
#str is not a buffer, so we have to copy the data
#alternatively, we could copy it first ourselves using this:
#pixels = numpy.fromstring(pixels, dtype=numpy.byte).data
#but I think this would be even slower
flags = mem_flags.READ_ONLY | mem_flags.COPY_HOST_PTR
else:
flags = mem_flags.READ_ONLY | mem_flags.USE_HOST_PTR
iimage = pyopencl.Image(self.context, flags, iformat, shape=shape, hostbuf=idata)
kernelargs = [self.queue, globalWorkSize, localWorkSize,
iimage, numpy.int32(self.src_width), numpy.int32(self.src_height),
numpy.int32(self.dst_width), numpy.int32(self.dst_height),
self.sampler]
#calculate plane strides and allocate output buffers:
strides = []
out_buffers = []
out_sizes = []
for i in range(3):
x_div, y_div = divs[i]
p_stride = roundup(self.dst_width // x_div, max(2, localWorkSize[0]))
p_height = roundup(self.dst_height // y_div, 2)
p_size = p_stride * p_height
#log("output buffer for channel %s: stride=%s, height=%s, size=%s", i, p_stride, p_height, p_size)
out_buf = pyopencl.Buffer(self.context, mem_flags.WRITE_ONLY, p_size)
out_buffers.append(out_buf)
kernelargs += [out_buf, numpy.int32(p_stride)]
strides.append(p_stride)
out_sizes.append(p_size)
kstart = time.time()
log("convert_image(%s) calling %s%s after %.1fms", image, self.kernel_function_name, tuple(kernelargs), 1000.0*(kstart-start))
self.kernel_function(*kernelargs)
self.queue.finish()
#free input image:
iimage.release()
kend = time.time()
log("%s took %.1fms", self.kernel_function_name, 1000.0*(kend-kstart))
#read back:
pixels = []
for i in range(3):
out_array = numpy.empty(out_sizes[i], dtype=numpy.byte)
pixels.append(out_array.data)
pyopencl.enqueue_read_buffer(self.queue, out_buffers[i], out_array, is_blocking=False)
readstart = time.time()
log("queue read events took %.1fms (3 planes of size %s, with strides=%s)", 1000.0*(readstart-kend), out_sizes, strides)
self.queue.finish()
readend = time.time()
log("wait for read events took %.1fms", 1000.0*(readend-readstart))
#free output buffers:
for out_buf in out_buffers:
out_buf.release()
return ImageWrapper(0, 0, self.dst_width, self.dst_height, pixels, self.dst_format, 24, strides, planes=ImageWrapper._3_PLANES)
def convert_image_yuv(self, image):
start = time.time()
iplanes = image.get_planes()
width = image.get_width()
height = image.get_height()
strides = image.get_rowstride()
pixels = image.get_pixels()
assert iplanes==ImageWrapper._3_PLANES, "we only handle planar data as input!"
assert image.get_pixel_format()==self.src_format, "invalid source format: %s (expected %s)" % (image.get_pixel_format(), self.src_format)
assert len(strides)==len(pixels)==3, "invalid number of planes or strides (should be 3)"
assert width>=self.src_width and height>=self.src_height, "expected source image with dimensions of at least %sx%s but got %sx%s" % (self.src_width, self.src_height, width, height)
#adjust work dimensions for subsampling:
#(we process N pixels at a time in each dimension)
divs = get_subsampling_divs(self.src_format)
wwidth = dimdiv(self.dst_width, max(x_div for x_div, _ in divs))
wheight = dimdiv(self.dst_height, max(y_div for _, y_div in divs))
globalWorkSize, localWorkSize = self.get_work_sizes(wwidth, wheight)
kernelargs = [self.queue, globalWorkSize, localWorkSize]
iformat = pyopencl.ImageFormat(pyopencl.channel_order.R, pyopencl.channel_type.UNSIGNED_INT8)
input_images = []
for i in range(3):
_, y_div = divs[i]
plane = pixels[i]
if type(plane)==_memoryview:
plane = memoryview_to_bytes(plane)
if type(plane)==str:
flags = mem_flags.READ_ONLY | mem_flags.COPY_HOST_PTR
else:
flags = mem_flags.READ_ONLY | mem_flags.USE_HOST_PTR
shape = strides[i], self.src_height//y_div
iimage = pyopencl.Image(self.context, flags, iformat, shape=shape, hostbuf=plane)
input_images.append(iimage)
#output image:
oformat = pyopencl.ImageFormat(self.channel_order, pyopencl.channel_type.UNORM_INT8)
oimage = pyopencl.Image(self.context, mem_flags.WRITE_ONLY, oformat, shape=(self.dst_width, self.dst_height))
kernelargs += input_images + [numpy.int32(self.src_width), numpy.int32(self.src_height),
numpy.int32(self.dst_width), numpy.int32(self.dst_height),
self.sampler, oimage]
kstart = time.time()
log("convert_image(%s) calling %s%s after upload took %.1fms",
image, self.kernel_function_name, tuple(kernelargs), 1000.0*(kstart-start))
self.kernel_function(*kernelargs)
self.queue.finish()
#free input images:
for iimage in input_images:
iimage.release()
kend = time.time()
log("%s took %.1fms", self.kernel_function, 1000.0*(kend-kstart))
out_array = numpy.empty(self.dst_width*self.dst_height*4, dtype=numpy.byte)
pyopencl.enqueue_read_image(self.queue, oimage, (0, 0), (self.dst_width, self.dst_height), out_array)
self.queue.finish()
log("readback using %s took %.1fms", CHANNEL_ORDER_TO_STR.get(self.channel_order), 1000.0*(time.time()-kend))
self.time += time.time()-start
self.frames += 1
return ImageWrapper(0, 0, self.dst_width, self.dst_height, out_array.data, self.dst_format, 24, self.dst_width*4, planes=ImageWrapper.PACKED)