57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
from UniTAP.libs.lib_dscl.dscl_utils import encode_vf, decode_vf, dscl_image_calculate_crc, dscl_data_processing, calculate_slice_size
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from UniTAP.common import VideoFrame, VideoFrameDSC, CompressionInfo
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def encode_video_frame(src_video_frame: VideoFrame, info: CompressionInfo) -> VideoFrameDSC:
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"""
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Encode custom video frame `VideoFrame` with transferred DSC parameters to video frame with DSC data.
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Args:
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src_video_frame (`VideoFrame`)
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info (`CompressionInfo`)
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"""
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return encode_vf(src_video_frame, info)
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def decode_video_frame(src_video_frame: VideoFrameDSC) -> VideoFrame:
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"""
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Decode custom video frame `VideoFrameDSC` with DSC data.
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Args:
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src_video_frame (`VideoFrame`)
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"""
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return decode_vf(src_video_frame)
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def dsc_video_frame_from_data(data: bytearray) -> VideoFrameDSC:
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"""
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Read PPS from DSC video frame data `VideoFrameDSC`.
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Args:
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data (`bytearray`)
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"""
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return dscl_data_processing(data)
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def calculate_dsc_crc(video_frame: VideoFrameDSC) -> tuple:
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"""
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Calculate DSC CRC by DSC Video Frame.
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Args:
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video_frame ('VideoFrameDSC')
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"""
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if not isinstance(video_frame, VideoFrameDSC):
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raise TypeError("Calculate DSC crc accept only VideoFrameDSC object!")
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return dscl_image_calculate_crc(video_frame)
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def calculate_dsc_slice_size(value: int, slice_number: int):
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"""
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Calculate DSC slice size by value and slice number.
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Args:
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value ('int')
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slice_number ('int')
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"""
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return int(calculate_slice_size(value, slice_number))
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