mirror of
https://github.com/python/cpython.git
synced 2024-11-26 11:24:40 +08:00
237 lines
5.2 KiB
Python
Executable File
237 lines
5.2 KiB
Python
Executable File
#
|
|
# cl.h - Compression Library typedefs and prototypes
|
|
#
|
|
# 01/07/92 Cleanup by Brian Knittel
|
|
# 02/18/92 Original Version by Brian Knittel
|
|
#
|
|
|
|
#
|
|
# originalFormat parameter values
|
|
#
|
|
MAX_NUMBER_OF_ORIGINAL_FORMATS = 32
|
|
|
|
# Audio
|
|
MONO = 0
|
|
STEREO_INTERLEAVED = 1
|
|
|
|
# Video
|
|
# YUV is defined to be the same thing as YCrCb (luma and two chroma components).
|
|
# 422 is appended to YUV (or YCrCb) if the chroma is sub-sampled by 2
|
|
# horizontally, packed as U Y1 V Y2 (byte order).
|
|
# 422HC is appended to YUV (or YCrCb) if the chroma is sub-sampled by 2
|
|
# vertically in addition to horizontally, and is packed the same as
|
|
# 422 except that U & V are not valid on the second line.
|
|
#
|
|
RGB = 0
|
|
RGBX = 1
|
|
RGBA = 2
|
|
RGB332 = 3
|
|
|
|
GRAYSCALE = 4
|
|
Y = 4
|
|
YUV = 5
|
|
YCbCr = 5
|
|
YUV422 = 6 # 4:2:2 sampling
|
|
YCbCr422 = 6 # 4:2:2 sampling
|
|
YUV422HC = 7 # 4:1:1 sampling
|
|
YCbCr422HC = 7 # 4:1:1 sampling
|
|
YUV422DC = 7 # 4:1:1 sampling
|
|
YCbCr422DC = 7 # 4:1:1 sampling
|
|
|
|
BEST_FIT = -1
|
|
|
|
def BytesPerSample(s):
|
|
if s in (MONO, YUV):
|
|
return 2
|
|
elif s == STEREO_INTERLEAVED:
|
|
return 4
|
|
else:
|
|
return 0
|
|
|
|
def BytesPerPixel(f):
|
|
if f in (RGB, YUV):
|
|
return 3
|
|
elif f in (RGBX, RGBA):
|
|
return 4
|
|
elif f in (RGB332, GRAYSCALE):
|
|
return 1
|
|
else:
|
|
return 2
|
|
|
|
def AudioFormatName(f):
|
|
if f == MONO:
|
|
return 'MONO'
|
|
elif f == STEREO_INTERLEAVED:
|
|
return 'STEREO_INTERLEAVED'
|
|
else:
|
|
return 'Not a valid format'
|
|
|
|
def VideoFormatName(f):
|
|
if f == RGB:
|
|
return 'RGB'
|
|
elif f == RGBX:
|
|
return 'RGBX'
|
|
elif f == RGBA:
|
|
return 'RGBA'
|
|
elif f == RGB332:
|
|
return 'RGB332'
|
|
elif f == GRAYSCALE:
|
|
return 'GRAYSCALE'
|
|
elif f == YUV:
|
|
return 'YUV'
|
|
elif f == YUV422:
|
|
return 'YUV422'
|
|
elif f == YUV422DC:
|
|
return 'YUV422DC'
|
|
else:
|
|
return 'Not a valid format'
|
|
|
|
MAX_NUMBER_OF_AUDIO_ALGORITHMS = 32
|
|
MAX_NUMBER_OF_VIDEO_ALGORITHMS = 32
|
|
|
|
#
|
|
# Algorithm types
|
|
#
|
|
AUDIO = 0
|
|
VIDEO = 1
|
|
|
|
def AlgorithmNumber(scheme):
|
|
return scheme & 0x7fff
|
|
def AlgorithmType(scheme):
|
|
return (scheme >> 15) & 1
|
|
def Algorithm(type, n):
|
|
return n | ((type & 1) << 15)
|
|
|
|
#
|
|
# "compressionScheme" argument values
|
|
#
|
|
UNKNOWN_SCHEME = -1
|
|
|
|
UNCOMPRESSED_AUDIO = Algorithm(AUDIO, 0)
|
|
G711_ULAW = Algorithm(AUDIO, 1)
|
|
ULAW = Algorithm(AUDIO, 1)
|
|
G711_ALAW = Algorithm(AUDIO, 2)
|
|
ALAW = Algorithm(AUDIO, 2)
|
|
AWARE_MPEG_AUDIO = Algorithm(AUDIO, 3)
|
|
AWARE_MULTIRATE = Algorithm(AUDIO, 4)
|
|
|
|
UNCOMPRESSED = Algorithm(VIDEO, 0)
|
|
UNCOMPRESSED_VIDEO = Algorithm(VIDEO, 0)
|
|
RLE = Algorithm(VIDEO, 1)
|
|
JPEG = Algorithm(VIDEO, 2)
|
|
MPEG_VIDEO = Algorithm(VIDEO, 3)
|
|
MVC1 = Algorithm(VIDEO, 4)
|
|
RTR = Algorithm(VIDEO, 5)
|
|
RTR1 = Algorithm(VIDEO, 5)
|
|
|
|
#
|
|
# Parameters
|
|
#
|
|
MAX_NUMBER_OF_PARAMS = 256
|
|
# Default Parameters
|
|
IMAGE_WIDTH = 0
|
|
IMAGE_HEIGHT = 1
|
|
ORIGINAL_FORMAT = 2
|
|
INTERNAL_FORMAT = 3
|
|
COMPONENTS = 4
|
|
BITS_PER_COMPONENT = 5
|
|
FRAME_RATE = 6
|
|
COMPRESSION_RATIO = 7
|
|
EXACT_COMPRESSION_RATIO = 8
|
|
FRAME_BUFFER_SIZE = 9
|
|
COMPRESSED_BUFFER_SIZE = 10
|
|
BLOCK_SIZE = 11
|
|
PREROLL = 12
|
|
FRAME_TYPE = 13
|
|
ALGORITHM_ID = 14
|
|
ALGORITHM_VERSION = 15
|
|
ORIENTATION = 16
|
|
NUMBER_OF_FRAMES = 17
|
|
SPEED = 18
|
|
LAST_FRAME_INDEX = 19
|
|
NUMBER_OF_PARAMS = 20
|
|
|
|
# JPEG Specific Parameters
|
|
QUALITY_FACTOR = NUMBER_OF_PARAMS + 0
|
|
|
|
# MPEG Specific Parameters
|
|
END_OF_SEQUENCE = NUMBER_OF_PARAMS + 0
|
|
|
|
# RTR Specific Parameters
|
|
QUALITY_LEVEL = NUMBER_OF_PARAMS + 0
|
|
ZOOM_X = NUMBER_OF_PARAMS + 1
|
|
ZOOM_Y = NUMBER_OF_PARAMS + 2
|
|
|
|
#
|
|
# Parameter value types
|
|
#
|
|
ENUM_VALUE = 0 # only certain constant values are valid
|
|
RANGE_VALUE = 1 # any value in a given range is valid
|
|
FLOATING_ENUM_VALUE = 2 # only certain constant floating point values are valid
|
|
FLOATING_RANGE_VALUE = 3 # any value in a given floating point range is valid
|
|
|
|
#
|
|
# Algorithm Functionality
|
|
#
|
|
DECOMPRESSOR = 1
|
|
COMPRESSOR = 2
|
|
CODEC = 3
|
|
|
|
#
|
|
# Buffer types
|
|
#
|
|
NONE = 0
|
|
FRAME = 1
|
|
DATA = 2
|
|
|
|
#
|
|
# Frame types
|
|
#
|
|
NONE = 0
|
|
KEYFRAME = 1
|
|
INTRA = 1
|
|
PREDICTED = 2
|
|
BIDIRECTIONAL = 3
|
|
|
|
#
|
|
# Orientations
|
|
#
|
|
TOP_DOWN = 0
|
|
BOTTOM_UP = 1
|
|
|
|
#
|
|
# SGI Proprietary Algorithm Header Start Code
|
|
#
|
|
HEADER_START_CODE = 0xc1C0DEC
|
|
|
|
#
|
|
# error codes
|
|
#
|
|
|
|
BAD_NO_BUFFERSPACE = -2 # no space for internal buffers
|
|
BAD_PVBUFFER = -3 # param/val buffer doesn't make sense
|
|
BAD_BUFFERLENGTH_NEG = -4 # negative buffer length
|
|
BAD_BUFFERLENGTH_ODD = -5 # odd length parameter/value buffer
|
|
BAD_PARAM = -6 # invalid parameter
|
|
BAD_COMPRESSION_SCHEME = -7 # compression scheme parameter invalid
|
|
BAD_COMPRESSOR_HANDLE = -8 # compression handle parameter invalid
|
|
BAD_COMPRESSOR_HANDLE_POINTER = -9 # compression handle pointer invalid
|
|
BAD_BUFFER_HANDLE = -10 # buffer handle invalid
|
|
BAD_BUFFER_QUERY_SIZE = -11 # buffer query size too large
|
|
JPEG_ERROR = -12 # error from libjpeg
|
|
BAD_FRAME_SIZE = -13 # frame size invalid
|
|
PARAM_OUT_OF_RANGE = -14 # parameter out of range
|
|
ADDED_ALGORITHM_ERROR = -15 # added algorithm had a unique error
|
|
BAD_ALGORITHM_TYPE = -16 # bad algorithm type
|
|
BAD_ALGORITHM_NAME = -17 # bad algorithm name
|
|
BAD_BUFFERING = -18 # bad buffering calls
|
|
BUFFER_NOT_CREATED = -19 # buffer not created
|
|
BAD_BUFFER_EXISTS = -20 # buffer already created
|
|
BAD_INTERNAL_FORMAT = -21 # invalid internal format
|
|
BAD_BUFFER_POINTER = -22 # invalid buffer pointer
|
|
FRAME_BUFFER_SIZE_ZERO = -23 # frame buffer has zero size
|
|
BAD_STREAM_HEADER = -24 # invalid stream header
|
|
|
|
BAD_LICENSE = -25 # netls license not valid
|
|
AWARE_ERROR = -26 # error from libawcmp
|