Lib/plat-irix5/CL.py

   1 #
   2 # cl.h - Compression Library typedefs and prototypes
   3 #
   4 #   01/07/92    Cleanup by Brian Knittel
   5 #   02/18/92    Original Version by Brian Knittel
   6 #
   7
   8 #
   9 # originalFormat parameter values
  10 #
  11 MAX_NUMBER_OF_ORIGINAL_FORMATS = 32
  12
  13 # Audio
  14 MONO = 0
  15 STEREO_INTERLEAVED = 1
  16
  17 # Video
  18 # YUV is defined to be the same thing as YCrCb (luma and two chroma components).
  19 # 422 is appended to YUV (or YCrCb) if the chroma is sub-sampled by 2
  20 #       horizontally, packed as U Y1 V Y2 (byte order).
  21 # 422HC is appended to YUV (or YCrCb) if the chroma is sub-sampled by 2
  22 #       vertically in addition to horizontally, and is packed the same as
  23 #       422 except that U & V are not valid on the second line.
  24 #
  25 RGB = 0
  26 RGBX = 1
  27 RGBA = 2
  28 RGB332 = 3
  29
  30 GRAYSCALE = 4
  31 Y = 4
  32 YUV = 5
  33 YCbCr = 5
  34 YUV422 = 6                              # 4:2:2 sampling
  35 YCbCr422 = 6                            # 4:2:2 sampling
  36 YUV422HC = 7                            # 4:1:1 sampling
  37 YCbCr422HC = 7                          # 4:1:1 sampling
  38 YUV422DC = 7                            # 4:1:1 sampling
  39 YCbCr422DC = 7                          # 4:1:1 sampling
  40
  41 BEST_FIT = -1
  42
  43 def BytesPerSample(s):
  44         if s in (MONO, YUV):
  45                 return 2
  46         elif s == STEREO_INTERLEAVED:
  47                 return 4
  48         else:
  49                 return 0
  50
  51 def BytesPerPixel(f):
  52         if f in (RGB, YUV):
  53                 return 3
  54         elif f in (RGBX, RGBA):
  55                 return 4
  56         elif f in (RGB332, GRAYSCALE):
  57                 return 1
  58         else:
  59                 return 2
  60
  61 def AudioFormatName(f):
  62         if f == MONO:
  63                 return 'MONO'
  64         elif f == STEREO_INTERLEAVED:
  65                 return 'STEREO_INTERLEAVED'
  66         else:
  67                 return 'Not a valid format'
  68
  69 def VideoFormatName(f):
  70         if f == RGB:
  71                 return 'RGB'
  72         elif f == RGBX:
  73                 return 'RGBX'
  74         elif f == RGBA:
  75                 return 'RGBA'
  76         elif f == RGB332:
  77                 return 'RGB332'
  78         elif f == GRAYSCALE:
  79                 return 'GRAYSCALE'
  80         elif f == YUV:
  81                 return 'YUV'
  82         elif f == YUV422:
  83                 return 'YUV422'
  84         elif f == YUV422DC:
  85                 return 'YUV422DC'
  86         else:
  87                 return 'Not a valid format'
  88
  89 MAX_NUMBER_OF_AUDIO_ALGORITHMS = 32
  90 MAX_NUMBER_OF_VIDEO_ALGORITHMS = 32
  91
  92 #
  93 # Algorithm types
  94 #
  95 AUDIO = 0
  96 VIDEO = 1
  97
  98 def AlgorithmNumber(scheme):
  99         return scheme & 0x7fff
 100 def AlgorithmType(scheme):
 101         return (scheme >> 15) & 1
 102 def Algorithm(type, n):
 103         return n | ((type & 1) << 15)
 104
 105 #
 106 # "compressionScheme" argument values
 107 #
 108 UNKNOWN_SCHEME = -1
 109
 110 UNCOMPRESSED_AUDIO = Algorithm(AUDIO, 0)
 111 G711_ULAW = Algorithm(AUDIO, 1)
 112 ULAW = Algorithm(AUDIO, 1)
 113 G711_ALAW = Algorithm(AUDIO, 2)
 114 ALAW = Algorithm(AUDIO, 2)
 115 AWARE_MPEG_AUDIO = Algorithm(AUDIO, 3)
 116 AWARE_MULTIRATE = Algorithm(AUDIO, 4)
 117
 118 UNCOMPRESSED = Algorithm(VIDEO, 0)
 119 UNCOMPRESSED_VIDEO = Algorithm(VIDEO, 0)
 120 RLE = Algorithm(VIDEO, 1)
 121 JPEG = Algorithm(VIDEO, 2)
 122 MPEG_VIDEO = Algorithm(VIDEO, 3)
 123 MVC1 = Algorithm(VIDEO, 4)
 124 RTR = Algorithm(VIDEO, 5)
 125 RTR1 = Algorithm(VIDEO, 5)
 126
 127 #
 128 # Parameters
 129 #
 130 MAX_NUMBER_OF_PARAMS = 256
 131 # Default Parameters
 132 IMAGE_WIDTH = 0
 133 IMAGE_HEIGHT = 1
 134 ORIGINAL_FORMAT = 2
 135 INTERNAL_FORMAT = 3
 136 COMPONENTS = 4
 137 BITS_PER_COMPONENT = 5
 138 FRAME_RATE = 6
 139 COMPRESSION_RATIO = 7
 140 EXACT_COMPRESSION_RATIO = 8
 141 FRAME_BUFFER_SIZE = 9
 142 COMPRESSED_BUFFER_SIZE = 10
 143 BLOCK_SIZE = 11
 144 PREROLL = 12
 145 FRAME_TYPE = 13
 146 ALGORITHM_ID = 14
 147 ALGORITHM_VERSION = 15
 148 ORIENTATION = 16
 149 NUMBER_OF_FRAMES = 17
 150 SPEED = 18
 151 LAST_FRAME_INDEX = 19
 152 NUMBER_OF_PARAMS = 20
 153
 154 # JPEG Specific Parameters
 155 QUALITY_FACTOR = NUMBER_OF_PARAMS + 0
 156
 157 # MPEG Specific Parameters
 158 END_OF_SEQUENCE = NUMBER_OF_PARAMS + 0
 159
 160 # RTR Specific Parameters
 161 QUALITY_LEVEL = NUMBER_OF_PARAMS + 0
 162 ZOOM_X = NUMBER_OF_PARAMS + 1
 163 ZOOM_Y = NUMBER_OF_PARAMS + 2
 164
 165 #
 166 # Parameter value types
 167 #
 168 ENUM_VALUE = 0                          # only certain constant values are valid
 169 RANGE_VALUE = 1                         # any value in a given range is valid
 170 FLOATING_ENUM_VALUE = 2                 # only certain constant floating point values are valid
 171 FLOATING_RANGE_VALUE = 3                # any value in a given floating point range is valid
 172
 173 #
 174 # Algorithm Functionality
 175 #
 176 DECOMPRESSOR = 1
 177 COMPRESSOR = 2
 178 CODEC = 3
 179
 180 #
 181 # Buffer types
 182 #
 183 NONE = 0
 184 FRAME = 1
 185 DATA = 2
 186
 187 #
 188 # Frame types
 189 #
 190 NONE = 0
 191 KEYFRAME = 1
 192 INTRA = 1
 193 PREDICTED = 2
 194 BIDIRECTIONAL = 3
 195
 196 #
 197 # Orientations
 198 #
 199 TOP_DOWN = 0
 200 BOTTOM_UP = 1
 201
 202 #
 203 # SGI Proprietaty Algorithm Header Start Code
 204 #
 205 HEADER_START_CODE = 0xc1C0DEC
 206
 207 #
 208 # error codes
 209 #
 210
 211 BAD_NO_BUFFERSPACE =  -2                # no space for internal buffers
 212 BAD_PVBUFFER =  -3                      # param/val buffer doesn't make sense
 213 BAD_BUFFERLENGTH_NEG =  -4              # negative buffer length
 214 BAD_BUFFERLENGTH_ODD =  -5              # odd length parameter/value buffer
 215 BAD_PARAM =  -6                         # invalid parameter
 216 BAD_COMPRESSION_SCHEME =  -7            # compression scheme parameter invalid
 217 BAD_COMPRESSOR_HANDLE =  -8             # compression handle parameter invalid
 218 BAD_COMPRESSOR_HANDLE_POINTER = -9      # compression handle pointer invalid
 219 BAD_BUFFER_HANDLE = -10                 # buffer handle invalid
 220 BAD_BUFFER_QUERY_SIZE = -11             # buffer query size too large
 221 JPEG_ERROR = -12                        # error from libjpeg
 222 BAD_FRAME_SIZE = -13                    # frame size invalid
 223 PARAM_OUT_OF_RANGE = -14                # parameter out of range
 224 ADDED_ALGORITHM_ERROR = -15             # added algorithm had a unique error
 225 BAD_ALGORITHM_TYPE = -16                # bad algorithm type
 226 BAD_ALGORITHM_NAME = -17                # bad algorithm name
 227 BAD_BUFFERING = -18                     # bad buffering calls
 228 BUFFER_NOT_CREATED = -19                # buffer not created
 229 BAD_BUFFER_EXISTS = -20                 # buffer already created
 230 BAD_INTERNAL_FORMAT = -21               # invalid internal format
 231 BAD_BUFFER_POINTER = -22                # invalid buffer pointer
 232 FRAME_BUFFER_SIZE_ZERO = -23            # frame buffer has zero size
 233 BAD_STREAM_HEADER = -24                 # invalid stream header
 234
 235 BAD_LICENSE = -25                       # netls license not valid
 236 AWARE_ERROR = -26                       # error from libawcmp