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237 lines
5.2 KiB
Python
Executable File
237 lines
5.2 KiB
Python
Executable File
#
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# cl.h - Compression Library typedefs and prototypes
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#
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# 01/07/92 Cleanup by Brian Knittel
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# 02/18/92 Original Version by Brian Knittel
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#
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#
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# originalFormat parameter values
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#
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MAX_NUMBER_OF_ORIGINAL_FORMATS = 32
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# Audio
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MONO = 0
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STEREO_INTERLEAVED = 1
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# Video
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# YUV is defined to be the same thing as YCrCb (luma and two chroma components).
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# 422 is appended to YUV (or YCrCb) if the chroma is sub-sampled by 2
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# horizontally, packed as U Y1 V Y2 (byte order).
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# 422HC is appended to YUV (or YCrCb) if the chroma is sub-sampled by 2
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# vertically in addition to horizontally, and is packed the same as
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# 422 except that U & V are not valid on the second line.
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#
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RGB = 0
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RGBX = 1
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RGBA = 2
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RGB332 = 3
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GRAYSCALE = 4
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Y = 4
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YUV = 5
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YCbCr = 5
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YUV422 = 6 # 4:2:2 sampling
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YCbCr422 = 6 # 4:2:2 sampling
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YUV422HC = 7 # 4:1:1 sampling
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YCbCr422HC = 7 # 4:1:1 sampling
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YUV422DC = 7 # 4:1:1 sampling
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YCbCr422DC = 7 # 4:1:1 sampling
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BEST_FIT = -1
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def BytesPerSample(s):
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if s in (MONO, YUV):
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return 2
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elif s == STEREO_INTERLEAVED:
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return 4
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else:
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return 0
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def BytesPerPixel(f):
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if f in (RGB, YUV):
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return 3
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elif f in (RGBX, RGBA):
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return 4
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elif f in (RGB332, GRAYSCALE):
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return 1
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else:
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return 2
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def AudioFormatName(f):
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if f == MONO:
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return 'MONO'
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elif f == STEREO_INTERLEAVED:
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return 'STEREO_INTERLEAVED'
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else:
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return 'Not a valid format'
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def VideoFormatName(f):
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if f == RGB:
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return 'RGB'
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elif f == RGBX:
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return 'RGBX'
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elif f == RGBA:
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return 'RGBA'
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elif f == RGB332:
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return 'RGB332'
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elif f == GRAYSCALE:
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return 'GRAYSCALE'
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elif f == YUV:
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return 'YUV'
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elif f == YUV422:
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return 'YUV422'
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elif f == YUV422DC:
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return 'YUV422DC'
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else:
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return 'Not a valid format'
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MAX_NUMBER_OF_AUDIO_ALGORITHMS = 32
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MAX_NUMBER_OF_VIDEO_ALGORITHMS = 32
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#
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# Algorithm types
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#
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AUDIO = 0
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VIDEO = 1
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def AlgorithmNumber(scheme):
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return scheme & 0x7fff
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def AlgorithmType(scheme):
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return (scheme >> 15) & 1
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def Algorithm(type, n):
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return n | ((type & 1) << 15)
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#
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# "compressionScheme" argument values
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#
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UNKNOWN_SCHEME = -1
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UNCOMPRESSED_AUDIO = Algorithm(AUDIO, 0)
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G711_ULAW = Algorithm(AUDIO, 1)
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ULAW = Algorithm(AUDIO, 1)
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G711_ALAW = Algorithm(AUDIO, 2)
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ALAW = Algorithm(AUDIO, 2)
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AWARE_MPEG_AUDIO = Algorithm(AUDIO, 3)
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AWARE_MULTIRATE = Algorithm(AUDIO, 4)
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UNCOMPRESSED = Algorithm(VIDEO, 0)
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UNCOMPRESSED_VIDEO = Algorithm(VIDEO, 0)
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RLE = Algorithm(VIDEO, 1)
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JPEG = Algorithm(VIDEO, 2)
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MPEG_VIDEO = Algorithm(VIDEO, 3)
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MVC1 = Algorithm(VIDEO, 4)
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RTR = Algorithm(VIDEO, 5)
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RTR1 = Algorithm(VIDEO, 5)
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#
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# Parameters
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#
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MAX_NUMBER_OF_PARAMS = 256
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# Default Parameters
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IMAGE_WIDTH = 0
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IMAGE_HEIGHT = 1
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ORIGINAL_FORMAT = 2
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INTERNAL_FORMAT = 3
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COMPONENTS = 4
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BITS_PER_COMPONENT = 5
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FRAME_RATE = 6
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COMPRESSION_RATIO = 7
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EXACT_COMPRESSION_RATIO = 8
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FRAME_BUFFER_SIZE = 9
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COMPRESSED_BUFFER_SIZE = 10
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BLOCK_SIZE = 11
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PREROLL = 12
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FRAME_TYPE = 13
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ALGORITHM_ID = 14
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ALGORITHM_VERSION = 15
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ORIENTATION = 16
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NUMBER_OF_FRAMES = 17
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SPEED = 18
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LAST_FRAME_INDEX = 19
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NUMBER_OF_PARAMS = 20
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# JPEG Specific Parameters
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QUALITY_FACTOR = NUMBER_OF_PARAMS + 0
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# MPEG Specific Parameters
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END_OF_SEQUENCE = NUMBER_OF_PARAMS + 0
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# RTR Specific Parameters
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QUALITY_LEVEL = NUMBER_OF_PARAMS + 0
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ZOOM_X = NUMBER_OF_PARAMS + 1
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ZOOM_Y = NUMBER_OF_PARAMS + 2
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#
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# Parameter value types
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#
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ENUM_VALUE = 0 # only certain constant values are valid
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RANGE_VALUE = 1 # any value in a given range is valid
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FLOATING_ENUM_VALUE = 2 # only certain constant floating point values are valid
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FLOATING_RANGE_VALUE = 3 # any value in a given floating point range is valid
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#
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# Algorithm Functionality
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#
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DECOMPRESSOR = 1
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COMPRESSOR = 2
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CODEC = 3
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#
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# Buffer types
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#
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NONE = 0
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FRAME = 1
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DATA = 2
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#
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# Frame types
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#
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NONE = 0
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KEYFRAME = 1
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INTRA = 1
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PREDICTED = 2
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BIDIRECTIONAL = 3
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#
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# Orientations
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#
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TOP_DOWN = 0
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BOTTOM_UP = 1
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#
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# SGI Proprietaty Algorithm Header Start Code
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#
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HEADER_START_CODE = 0xc1C0DEC
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#
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# error codes
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#
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BAD_NO_BUFFERSPACE = -2 # no space for internal buffers
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BAD_PVBUFFER = -3 # param/val buffer doesn't make sense
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BAD_BUFFERLENGTH_NEG = -4 # negative buffer length
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BAD_BUFFERLENGTH_ODD = -5 # odd length parameter/value buffer
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BAD_PARAM = -6 # invalid parameter
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BAD_COMPRESSION_SCHEME = -7 # compression scheme parameter invalid
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BAD_COMPRESSOR_HANDLE = -8 # compression handle parameter invalid
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BAD_COMPRESSOR_HANDLE_POINTER = -9 # compression handle pointer invalid
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BAD_BUFFER_HANDLE = -10 # buffer handle invalid
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BAD_BUFFER_QUERY_SIZE = -11 # buffer query size too large
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JPEG_ERROR = -12 # error from libjpeg
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BAD_FRAME_SIZE = -13 # frame size invalid
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PARAM_OUT_OF_RANGE = -14 # parameter out of range
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ADDED_ALGORITHM_ERROR = -15 # added algorithm had a unique error
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BAD_ALGORITHM_TYPE = -16 # bad algorithm type
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BAD_ALGORITHM_NAME = -17 # bad algorithm name
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BAD_BUFFERING = -18 # bad buffering calls
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BUFFER_NOT_CREATED = -19 # buffer not created
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BAD_BUFFER_EXISTS = -20 # buffer already created
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BAD_INTERNAL_FORMAT = -21 # invalid internal format
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BAD_BUFFER_POINTER = -22 # invalid buffer pointer
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FRAME_BUFFER_SIZE_ZERO = -23 # frame buffer has zero size
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BAD_STREAM_HEADER = -24 # invalid stream header
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BAD_LICENSE = -25 # netls license not valid
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AWARE_ERROR = -26 # error from libawcmp
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