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 _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 _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 _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 _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 # We need the intra-period to calculate the SPS header timeout in # the split method below. If one is not set explicitly, query the # encoder's default 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") self._intra_period = intra_period else: mp = mmal.MMAL_PARAMETER_UINT32_T( mmal.MMAL_PARAMETER_HEADER_T( mmal.MMAL_PARAMETER_INTRAPERIOD, ct.sizeof(mmal.MMAL_PARAMETER_UINT32_T), )) mmal_check( mmal.mmal_port_parameter_get(self.output_port, mp.hdr), prefix="Unable to get encoder intra_period") self._intra_period = mp.value elif self.format == 'mjpeg': # MJPEG doesn't have an intra_period setting as such, but as every # frame is a full-frame, the intra_period is effectively 1 self._intra_period = 1 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")