def _create_encoder(self, quality=85, thumbnail=(64, 48, 35), bayer=False):
super(PiImageEncoder, self)._create_encoder()
try:
self.output_port[0].format[0].encoding = {
'jpeg': mmal.MMAL_ENCODING_JPEG,
'png': mmal.MMAL_ENCODING_PNG,
'gif': mmal.MMAL_ENCODING_GIF,
'bmp': mmal.MMAL_ENCODING_BMP,
}[self.format]
except KeyError:
raise PiCameraValueError("Unrecognized format %s" % self.format)
mmal_check(
mmal.mmal_port_format_commit(self.output_port),
prefix="Unable to set format on encoder output port")
if self.format == 'jpeg':
mmal_check(
mmal.mmal_port_parameter_set_uint32(
self.output_port,
mmal.MMAL_PARAMETER_JPEG_Q_FACTOR,
quality),
prefix="Failed to set JPEG quality")
mmal_check(
mmal.mmal_port_parameter_set_boolean(
self.camera_port,
mmal.MMAL_PARAMETER_ENABLE_RAW_CAPTURE,
int(bool(bayer))),
prefix="Failed to set raw capture")
if thumbnail is None:
mp = mmal.MMAL_PARAMETER_THUMBNAIL_CONFIG_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_THUMBNAIL_CONFIGURATION,
ct.sizeof(mmal.MMAL_PARAMETER_THUMBNAIL_CONFIG_T)
),
0, 0, 0, 0)
else:
mp = mmal.MMAL_PARAMETER_THUMBNAIL_CONFIG_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_THUMBNAIL_CONFIGURATION,
ct.sizeof(mmal.MMAL_PARAMETER_THUMBNAIL_CONFIG_T)
),
1, *thumbnail)
mmal_check(
mmal.mmal_port_parameter_set(self.encoder[0].control, mp.hdr),
prefix="Failed to set thumbnail configuration")
mmal_check(
mmal.mmal_component_enable(self.encoder),
prefix="Unable to enable encoder component")
def _get_fullscreen(self):
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)))
mmal_check(mmal.mmal_port_parameter_get(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to get fullscreen")
return mp.fullscreen != mmal.MMAL_FALSE
def _set_fullscreen(self, value):
mp = mmal.MMAL_DISPLAYREGION_T(mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_FULLSCREEN,
fullscreen=bool(value))
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set fullscreen")
def _set_transform(self, value):
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_TRANSFORM,
transform=value,
)
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set transform")
def _get_crop(self):
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)))
mmal_check(mmal.mmal_port_parameter_get(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to get crop")
return (
mp.src_rect.x,
mp.src_rect.y,
mp.src_rect.width,
mp.src_rect.height,
)
def _set_crop(self, value):
try:
x, y, w, h = value
except (TypeError, ValueError) as e:
raise PiCameraValueError(
"Invalid crop rectangle (x, y, w, h) tuple: %s" % value)
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_SRC_RECT,
src_rect=mmal.MMAL_RECT_T(x, y, w, h),
)
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set crop")
def _set_layer(self, value):
try:
if not (0 <= value <= 255):
raise PiCameraValueError(
"Invalid layer value: %d (valid range 0..255)" % value)
except TypeError:
raise PiCameraValueError("Invalid layer value: %s" % value)
mp = mmal.MMAL_DISPLAYREGION_T(mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_LAYER,
layer=value)
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set layer")
def _create_encoder(self,
bitrate=17000000,
intra_period=0,
profile='high',
quantization=0,
inline_headers=True,
sei=False):
super(PiVideoEncoder, self)._create_encoder()
try:
self.output_port[0].format[0].encoding = {
'h264': mmal.MMAL_ENCODING_H264,
'mjpeg': mmal.MMAL_ENCODING_MJPEG,
}[self.format]
except KeyError:
raise PiCameraValueError('Unrecognized format %s' % self.format)
if not (0 <= bitrate <= 25000000):
raise PiCameraValueError(
'bitrate must be between 0 (VBR) and 25Mbps')
if quantization and bitrate:
warnings.warn('Setting bitrate to 0 as quantization is non-zero',
PiCameraWarning)
bitrate = 0
self.output_port[0].format[0].bitrate = bitrate
mmal_check(mmal.mmal_port_format_commit(self.output_port),
prefix="Unable to set format on encoder output port")
if self.format == 'h264':
mp = mmal.MMAL_PARAMETER_VIDEO_PROFILE_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_PROFILE,
ct.sizeof(mmal.MMAL_PARAMETER_VIDEO_PROFILE_T),
), )
try:
mp.profile[0].profile = {
'baseline':
mmal.MMAL_VIDEO_PROFILE_H264_BASELINE,
'main':
mmal.MMAL_VIDEO_PROFILE_H264_MAIN,
'high':
mmal.MMAL_VIDEO_PROFILE_H264_HIGH,
'constrained':
mmal.MMAL_VIDEO_PROFILE_H264_CONSTRAINED_BASELINE,
}[profile]
except KeyError:
raise PiCameraValueError("Invalid H.264 profile %s" % profile)
mp.profile[0].level = mmal.MMAL_VIDEO_LEVEL_H264_4
mmal_check(mmal.mmal_port_parameter_set(self.output_port, mp.hdr),
prefix="Unable to set encoder H.264 profile")
mmal_check(mmal.mmal_port_parameter_set_boolean(
self.output_port,
mmal.MMAL_PARAMETER_VIDEO_ENCODE_INLINE_HEADER,
int(inline_headers)),
prefix="Unable to set inline_headers")
mmal_check(mmal.mmal_port_parameter_set_boolean(
self.output_port, mmal.MMAL_PARAMETER_VIDEO_ENCODE_SEI_ENABLE,
int(sei)),
prefix="Enable to set SEI")
if not (bitrate and inline_headers):
# If inline_headers is disabled, or VBR encoding is configured,
# disable the split function
self._next_output = None
if intra_period:
mp = mmal.MMAL_PARAMETER_UINT32_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_INTRAPERIOD,
ct.sizeof(mmal.MMAL_PARAMETER_UINT32_T),
), intra_period)
mmal_check(mmal.mmal_port_parameter_set(
self.output_port, mp.hdr),
prefix="Unable to set encoder intra_period")
if quantization:
mp = mmal.MMAL_PARAMETER_UINT32_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_VIDEO_ENCODE_INITIAL_QUANT,
ct.sizeof(mmal.MMAL_PARAMETER_UINT32_T),
), quantization)
mmal_check(mmal.mmal_port_parameter_set(self.output_port, mp.hdr),
prefix="Unable to set initial quantization")
mp = mmal.MMAL_PARAMETER_UINT32_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_VIDEO_ENCODE_MIN_QUANT,
ct.sizeof(mmal.MMAL_PARAMETER_UINT32_T),
),
quantization,
)
mmal_check(mmal.mmal_port_parameter_set(self.output_port, mp.hdr),
prefix="Unable to set minimum quantization")
mp = mmal.MMAL_PARAMETER_UINT32_T(
mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_VIDEO_ENCODE_MAX_QUANT,
ct.sizeof(mmal.MMAL_PARAMETER_UINT32_T),
),
quantization,
)
mmal_check(mmal.mmal_port_parameter_set(self.output_port, mp.hdr),
prefix="Unable to set maximum quantization")
mmal_check(mmal.mmal_port_parameter_set_boolean(
self.encoder[0].input[0],
mmal.MMAL_PARAMETER_VIDEO_IMMUTABLE_INPUT, 1),
prefix="Unable to set immutable flag on encoder input port")
mmal_check(mmal.mmal_component_enable(self.encoder),
prefix="Unable to enable video encoder component")
sc.max_stills_h = h
sc.stills_yuv422 = 0
sc.one_shot_stills = 0
sc.max_preview_video_w = w
sc.max_preview_video_h = h
sc.num_preview_video_frames = 3
sc.stills_capture_circular_buffer_height = 0
sc.fast_preview_resume = 0
camera.control.params[mmal.MMAL_PARAMETER_CAMERA_CONFIG] = sc
#fps=camera.control.params[mmal.MMAL_PARAMETER_FPS_RANGE]
#fps.fps_low.num=2
#fps.fps_low.den=1
#fps.fps_high.num=2
#fps.fps_high.den=1
fps = mmal.MMAL_PARAMETER_FPS_RANGE_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_FPS_RANGE,
ct.sizeof(mmal.MMAL_PARAMETER_FPS_RANGE_T)),
fps_low=mo.to_rational(2),
fps_high=mo.to_rational(2),
)
video_port.params[mmal.MMAL_PARAMETER_FPS_RANGE] = fps
em = camera.control.params[mmal.MMAL_PARAMETER_EXPOSURE_MODE]
em.value = mmal.MMAL_PARAM_EXPOSUREMODE_NIGHT
camera.control.params[mmal.MMAL_PARAMETER_EXPOSURE_MODE] = em
#video_port.params[mmal.MMAL_PARAMETER_MIRROR]=mmal.MMAL_PARAM_MIRROR_BOTH
camera.control.params[mmal.MMAL_PARAMETER_EXPOSURE_COMP] = 18
video_port.enable(image_callback)
camera.control.params[mmal.MMAL_PARAMETER_ANALOG_GAIN] = 12
print(video_port)
