CL.py: adapted to newest version of CL library.

cdplayer.py: It is now also possible to give the CD's TOC as argument
to init().  The TOC is a string consisting of 2 digits giving the
number of tracks and then for each track the length of the track as
number of minutes and number of seconds (2 digits each).

cddb.py: Interface to the .cddb directory.  Usage is the same as for
cdplayer.py.

3 files changed, 265 insertions, 66 deletions

diff --git a/Lib/irix5/CL.py b/Lib/irix5/CL.py
index 5e21d2e..c64f088 100755
--- a/Lib/irix5/CL.py
+++ b/Lib/irix5/CL.py
@@ -1,84 +1,172 @@
-# typedef enum CL_OriginalFormat
-RGB = 0
-RGBX = 1
-RGBA = 2
-YCrCb444 = 3
-YCrCb422 = 4
-YCrCb411 = 5
-RGB332 = 6
-COLORMAP8 = 7
-COLORMAP12 = 8
-GRAYSCALE = 9
-MONO = 10
-STEREO_INTERLEAVED = 11
-QUAD_INTERLEAVED = 12
-SURROUND_SOUND = 13
-
-MAX_NUMBER_OF_AUDIO_ALGORITHMS = 32
-MAX_NUMBER_OF_VIDEO_ALGORITHMS = 32
-
-# typedef enum CL_CompressionScheme
-UNCOMPRESSED = 0
-G711_ULAW = 1
-G711_ALAW = 2
-G722 = 3
-UNCOMPRESSED_VIDEO = MAX_NUMBER_OF_AUDIO_ALGORITHMS
-RLE = UNCOMPRESSED_VIDEO + 1
-JPEG = RLE + 1
-MPEG_VIDEO = JPEG + 1
-MVC1 = MPEG_VIDEO + 1
+#
+# cl.h - Compression Library typedefs and prototypes
+#
+#   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
+
+MAX_NUMBER_OF_AUDIO_ALGORITHMS = (32)
+MAX_NUMBER_OF_VIDEO_ALGORITHMS = (32)
+
+#
+# "compressionScheme" argument values
+#
+UNCOMPRESSED_AUDIO = (0)
+G711_ULAW = (1)
+ULAW = (1)
+G711_ALAW = (2)
+ALAW = (2)
+G722 = (3)
+    
+UNCOMPRESSED = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 0)
+UNCOMPRESSED_VIDEO = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 0)
+RLE = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 1)
+JPEG = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 2)
+MPEG_VIDEO = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 3)
+MVC1 = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 4)
+RTR = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 5)
+RTR1 = (MAX_NUMBER_OF_AUDIO_ALGORITHMS + 5)
 
 #
 # Parameters
 #
-# typedef enum CL_Parameters
-SPEED = 0
-ACTUAL_FRAME_INDEX  = 1
-COMPRESSION_FORMAT = 2
-QUALITY_FACTOR = 3
-NUMBER_OF_PARAMS = 4
+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)
+UNIQUE = (13)
+FRAME_TYPE = (14)
+OVERWRITE_MODE = (15)
+NUMBER_OF_PARAMS = (16)
+
+# JPEG Specific Parameters
+QUALITY_FACTOR = (NUMBER_OF_PARAMS + 0)
 
-MAX_NUMBER_OF_PARAMS = 32
+# MPEG Specific Parameters
+SPEED = (NUMBER_OF_PARAMS + 0)
+ACTUAL_FRAME_INDEX = (NUMBER_OF_PARAMS + 1)
 
+# RTR Specific Parameters
+QUALITY_LEVEL = (NUMBER_OF_PARAMS + 0)
+
+# #define	clTypeIsFloat(v)	(*(float *)&(v))
+# #define	clTypeIsLong(v)		(*(long *)&(v))
+# 
+# RATIO_1 = (65536.0)
+# #define clFloatToRatio(f)	((long)((float)(f) * RATIO_1))
+# #define clRatioToFloat(f)	((float)(f) / RATIO_1)
+# RATIO_SHIFT = (16)
+# #define clRatioMul(m, r)	((m) * (r))
+# #define clRatioToLong(r)	((r) >> RATIO_SHIFT)
+# #define clLongToRatio(r)	((r) << RATIO_SHIFT)
 
 #
 # Parameter value types
 #
-# typedef enum CL_ParameterTypes
-ENUM_VALUE = 0			# only certain constant values are valid
-RANGE_VALUE = 1			# any value in a given range is valid
-POINTER = 2			# any legal pointer is valid
+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
+POINTER = (4) # any legal pointer is valid
 
-# typedef enum AlgorithmType
-AUDIO = 0
-VIDEO = 1
+#
+# Algorithm types
+#
+AUDIO = (0)
+VIDEO = (1)
 
-# typedef enum AlgorithmFunctionality
-DECOMPRESSOR = 1
-COMPRESSOR = 2
-CODEC = 3
+#
+# Algorithm Functionality
+#
+DECOMPRESSOR = (1)
+COMPRESSOR = (2)
+CODEC = (3)
 
+#
+# Buffer types
+#
+NONE = (0)
+FRAME = (1)
+DATA = (2)
 
 #
 # error codes
 #
-BAD_NOT_IMPLEMENTED = 0		# not impimented yet
-BAD_NO_BUFFERSPACE = 1		# no space for internal buffers
-BAD_QSIZE = 2			# attempt to set an invalid queue size
-BAD_BUFFER_NULL = 3		# null buffer pointer
-BAD_COUNT_NEG = 4		# negative count
-BAD_PVBUFFER = 5		# param/val buffer doesn't make sense
-BAD_BUFFERLENGTH_NEG = 6	# negative buffer length
-BAD_BUFFERLENGTH_ODD = 7	# odd length parameter/value buffer
-BAD_PARAM = 8			# invalid parameter
-BAD_COMPRESSION_SCHEME = 9	# compression scheme parameter invalid
-BAD_COMPRESSOR_HANDLE = 10	# compression handle parameter invalid
-BAD_COMPRESSOR_HANDLE_POINTER = 11 # compression handle pointer invalid
-BAD_CALLBACK_FUNCTION = 12	# callback function invalid
-BAD_COMPRESSION_FORMAT_POINTER = 13 # compression format parameter invalid
-BAD_POINTER_FROM_CALLBACK_FUNCTION = 14 # pointer from callback invalid
-JPEG_ERROR = 15			# error from libjpeg
-NO_SEMAPHORE = 16		# could not get semaphore
-BAD_WIDTH_OR_HEIGHT = 17	# width or height invalid 
-BAD_FRAME_COUNT = 18		# frame count invalid 
+BAD_NOT_IMPLEMENTED = ( -1) # not impimented yet
+BAD_NO_BUFFERSPACE = ( -2) # no space for internal buffers
+BAD_BUFFER_NULL = ( -3) # null buffer pointer
+BAD_COUNT_NEG = ( -4) # negative count
+BAD_PVBUFFER = ( -5) # param/val buffer doesn't make sense
+BAD_BUFFERLENGTH_NEG = ( -6) # negative buffer length
+BAD_BUFFERLENGTH_ODD = ( -7) # odd length parameter/value buffer
+BAD_PARAM = ( -8) # invalid parameter
+BAD_COMPRESSION_SCHEME = ( -9) # compression scheme parameter invalid
+BAD_COMPRESSOR_HANDLE = (-10) # compression handle parameter invalid
+BAD_COMPRESSOR_HANDLE_POINTER = (-11) # compression handle pointer invalid
+BAD_BUFFER_HANDLE = (-12) # callback function invalid
+BAD_ALGORITHM_INFO = (-13) # algorithm info invalid
+BAD_CL_BAD_WIDTH_OR_HEIGHT = (-14) # compressor width or height invalid
+BAD_POINTER_FROM_CALLBACK_FUNCTION = (-15) # pointer from callback invalid
+JPEG_ERROR = (-16) # error from libjpeg
+NO_SEMAPHORE = (-17) # could not get semaphore
+BAD_WIDTH_OR_HEIGHT = (-18) # width or height invalid
+BAD_FRAME_COUNT = (-19) # frame count invalid
+BAD_FRAME_INDEX = (-20) # frame index invalid
+BAD_FRAME_BUFFER = (-21) # frame buffer pointer invalid
+BAD_FRAME_SIZE = (-22) # frame size invalid
+BAD_DATA_BUFFER = (-23) # data buffer pointer invalid
+BAD_DATA_SIZE = (-24) # data buffer size invalid
+BAD_TOTAL_NUMBER_OF_FRAMES = (-25) # total number of frames invalid
+BAD_IMAGE_FORMAT = (-26) # image format invalid
+BAD_BITS_PER_COMPONENT = (-27) # bits per component invalid
+BAD_FRAME_RATE = (-28) # frame rate invalid
+BAD_INSUFFICIENT_DATA_FROM_CALLBACK_FUNCTION = (-29) # insufficient data from callback invalid
+PARAM_OUT_OF_RANGE = (-30) # parameter out of range
+ADDED_ALGORITHM_ERROR = (-31) # added algorithm had a unique error
+BAD_ALGORITHM_TYPE = (-32) # bad algorithm type
+BAD_ALGORITHM_NAME = (-33) # bad algorithm name
+BAD_FRAME_INDEXING = (-34) # bad frame indexing
+BAD_BUFFERING = (-35) # bad buffering calls
+BUFFER_NOT_CREATED = (-36) # buffer not created
+BAD_BUFFER_EXISTS = (-37) # buffer already created
diff --git a/Lib/irix5/cddb.py b/Lib/irix5/cddb.py
new file mode 100755
index 0000000..7531312
--- /dev/null
+++ b/Lib/irix5/cddb.py
@@ -0,0 +1,104 @@
+# This file implements a class which forms an interface to the .cddb
+# directory that is maintained by SGI's cdman program.
+#
+# Usage is as follows:
+#
+# import readcd
+# r = readcd.Readcd().init()
+# c = Cddb().init(r.gettrackinfo())
+#
+# Now you can use c.artist, c.title and c.track[trackno] (where trackno
+# starts at 1).  When the CD is not recognized, all values will be the empty
+# string.
+# It is also possible to set the above mentioned variables to new values.
+# You can then use c.write() to write out the changed values to the
+# .cdplayerrc file.
+
+import string
+
+_cddbrc = '.cddb/'
+_DB_ID_NTRACKS = 5
+_dbid_map = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ@_=+abcdefghijklmnopqrstuvwxyz'
+def _dbid(v):
+	if v >= len(_dbid_map):
+		return string.zfill(v, 2)
+	else:
+		return _dbid_map[v]
+
+class Cddb():
+	def init(self, tracklist):
+		self.artist = ''
+		self.title = ''
+		if type(tracklist) == type(''):
+			t = []
+			for i in range(2, len(tracklist), 4):
+				t.append((None, \
+					  (string.atoi(tracklist[i:i+2]), \
+					   string.atoi(tracklist[i+2:i+4]))))
+			tracklist = t
+		ntracks = len(tracklist)
+		self.track = [None] + [''] * ntracks
+		self.id = _dbid((ntracks >> 4) & 0xF) + _dbid(ntracks & 0xF)
+		if ntracks <= _DB_ID_NTRACKS:
+			nidtracks = ntracks
+		else:
+			nidtracks = _DB_ID_NTRACKS - 1
+			min = 0
+			sec = 0
+			for track in tracklist:
+				start, length = track
+				min = min + length[0]
+				sec = sec + length[1]
+			min = min + sec / 60
+			sec = sec % 60
+			self.id = self.id + _dbid(min) + _dbid(sec)
+		for i in range(nidtracks):
+			start, length = tracklist[i]
+			self.id = self.id + _dbid(length[0]) + _dbid(length[1])
+		self.toc = string.zfill(ntracks, 2)
+		for track in tracklist:
+			start, length = track
+			self.toc = self.toc + string.zfill(length[0], 2) + \
+				  string.zfill(length[1], 2)
+		try:
+			import posix
+			file = posix.environ['HOME'] + '/' + _cddbrc + self.id + '.rdb'
+			f = open(file, 'r')
+		except IOError:
+			return self
+		import regex
+		reg = regex.compile('^\\([^.]*\\)\\.\\([^:]*\\):\t\\(.*\\)')
+		while 1:
+			line = f.readline()
+			if not line:
+				break
+			if reg.match(line) == -1:
+				print 'syntax error in ' + file
+				continue
+			name1 = line[reg.regs[1][0]:reg.regs[1][1]]
+			name2 = line[reg.regs[2][0]:reg.regs[2][1]]
+			value = line[reg.regs[3][0]:reg.regs[3][1]]
+			if name1 == 'album':
+				if name2 == 'artist':
+					self.artist = value
+				elif name2 == 'title':
+					self.title = value
+				elif name2 == 'toc':
+					if self.toc != value:
+						print 'toc\'s don\'t match'
+			elif name1[:5] == 'track':
+				trackno = string.atoi(name1[5:])
+				self.track[trackno] = value
+		f.close()
+		return self
+
+	def write(self):
+		import posix
+		file = posix.environ['HOME'] + '/' + _cddbrc + self.id + '.rdb'
+		f = open(file, 'w')
+		f.write('album.title:\t' + self.title + '\n')
+		f.write('album.artist:\t' + self.artist + '\n')
+		f.write('album.toc:\t' + self.toc + '\n')
+		for i in range(1, len(self.track)):
+			f.write('track' + `i` + '.title:\t' + self.track[i] + '\n')
+		f.close()
diff --git a/Lib/irix5/cdplayer.py b/Lib/irix5/cdplayer.py
index 2839021..deec996 100755
--- a/Lib/irix5/cdplayer.py
+++ b/Lib/irix5/cdplayer.py
@@ -21,6 +21,13 @@ class Cdplayer():
 		import string
 		self.artist = ''
 		self.title = ''
+		if type(tracklist) == type(''):
+			t = []
+			for i in range(2, len(tracklist), 4):
+				t.append((None, \
+					  (string.atoi(tracklist[i:i+2]), \
+					   string.atoi(tracklist[i+2:i+4]))))
+			tracklist = t
 		self.track = [None] + [''] * len(tracklist)
 		self.id = 'd' + string.zfill(len(tracklist), 2)
 		for track in tracklist: