AWARE.py: New file with definitions for Aware Inc.'s compression

algorithms in cl module.
aifc.py: fixed a small bug.

Lib/aifc.py

@@ -506,7 +506,8 @@ class Aifc_read():
 			return ''
 		data = self._ssnd_chunk.read(nframes * self._framesize)
 		if self._decomp and data:
-			self._decomp.SetParam(CL.FRAME_BUFFER_SIZE, len(data) * 2)
+			dummy = self._decomp.SetParam(CL.FRAME_BUFFER_SIZE, \
+				  len(data) * 2)
 			data = self._decomp.Decompress(len(data) / self._nchannels, data)
 		self._soundpos = self._soundpos + len(data) / (self._nchannels * self._sampwidth)
 		return data
@@ -638,7 +639,7 @@ class Aifc_write():
 	def setnchannels(self, nchannels):
 		if self._nframeswritten:
 			raise Error, 'cannot change parameters after starting to write'
-		dummy = _convert(nchannels, _nchannelslist)
+		dummy = _convert2(nchannels, _nchannelslist)
 		self._nchannels = nchannels
 
 	def getnchannels(self):
@@ -756,8 +757,9 @@ class Aifc_write():
 			self._write_header(len(data))
 		nframes = len(data) / (self._sampwidth * self._nchannels)
 		if self._comp:
-			self._comp.SetParam(CL.FRAME_BUFFER_SIZE, len(data))
-			self._comp.SetParam(CL.COMPRESSED_BUFFER_SIZE, \
+			dummy = self._comp.SetParam(CL.FRAME_BUFFER_SIZE, \
+				  len(data))
+			dummy = self._comp.SetParam(CL.COMPRESSED_BUFFER_SIZE,\
 				  len(data))
 			data = self._comp.Compress(nframes, data)
 		self._file.write(data)

Lib/irix5/AWARE.py

+# 
+# Copyright (c) 1992 Aware, Inc. All rights reserved.
+# 
+# Copyright Unpublished, Aware Inc.  All Rights Reserved.
+# This software contains proprietary and confidential
+# information of Aware, Inc.  Use, disclosure or
+# reproduction is prohibited without the prior express
+# written consent of Aware, Inc.
+# 
+#
+
+#
+# awareAudio.h - Aware Compression Library Parameter Header
+#
+#   01/21/92	Original Version by Brian Knittel and Jonathon Devine
+#
+
+import CL
+
+# Aware Audio Specific Parameters - For both MPEG Audio and Multirate
+CL.CHANNEL_POLICY = CL.NUMBER_OF_PARAMS + 0
+CL.NOISE_MARGIN = CL.NUMBER_OF_PARAMS + 1
+CL.BITRATE_POLICY = CL.NUMBER_OF_PARAMS + 2
+
+# Additional parameters for MPEG Audio
+CL.BITRATE_TARGET = CL.NUMBER_OF_PARAMS + 3
+CL.LAYER = CL.NUMBER_OF_PARAMS + 4
+
+# read/write for compression configuration
+# read for state during compression/decompression 
+
+#
+# Channel Policy
+#
+AWCMP_STEREO = 1
+AWCMP_JOINT_STEREO = 2
+AWCMP_INDEPENDENT = 3
+
+# 
+# read/write for compression configuration,
+# read for state during compression
+#
+#
+# Bit-rate Policy
+#
+AWCMP_FIXED_RATE = 1
+AWCMP_CONST_QUAL = 2
+AWCMP_LOSSLESS = 4
+
+#
+# Layer values
+#
+AWCMP_MPEG_LAYER_I = 1
+AWCMP_MPEG_LAYER_II = 2

Lib/plat-irix5/AWARE.py

+# 
+# Copyright (c) 1992 Aware, Inc. All rights reserved.
+# 
+# Copyright Unpublished, Aware Inc.  All Rights Reserved.
+# This software contains proprietary and confidential
+# information of Aware, Inc.  Use, disclosure or
+# reproduction is prohibited without the prior express
+# written consent of Aware, Inc.
+# 
+#
+
+#
+# awareAudio.h - Aware Compression Library Parameter Header
+#
+#   01/21/92	Original Version by Brian Knittel and Jonathon Devine
+#
+
+import CL
+
+# Aware Audio Specific Parameters - For both MPEG Audio and Multirate
+CL.CHANNEL_POLICY = CL.NUMBER_OF_PARAMS + 0
+CL.NOISE_MARGIN = CL.NUMBER_OF_PARAMS + 1
+CL.BITRATE_POLICY = CL.NUMBER_OF_PARAMS + 2
+
+# Additional parameters for MPEG Audio
+CL.BITRATE_TARGET = CL.NUMBER_OF_PARAMS + 3
+CL.LAYER = CL.NUMBER_OF_PARAMS + 4
+
+# read/write for compression configuration
+# read for state during compression/decompression 
+
+#
+# Channel Policy
+#
+AWCMP_STEREO = 1
+AWCMP_JOINT_STEREO = 2
+AWCMP_INDEPENDENT = 3
+
+# 
+# read/write for compression configuration,
+# read for state during compression
+#
+#
+# Bit-rate Policy
+#
+AWCMP_FIXED_RATE = 1
+AWCMP_CONST_QUAL = 2
+AWCMP_LOSSLESS = 4
+
+#
+# Layer values
+#
+AWCMP_MPEG_LAYER_I = 1
+AWCMP_MPEG_LAYER_II = 2