diff options
| -rwxr-xr-x | Demo/sgi/cd/CD.doc | 46 | ||||
| -rwxr-xr-x | Lib/irix5/cdplayer.py | 83 | ||||
| -rwxr-xr-x | Lib/plat-irix5/cdplayer.py | 83 | ||||
| -rwxr-xr-x | Lib/plat-sunos4/SUNAUDIODEV.py | 25 | ||||
| -rwxr-xr-x | Lib/sunos4/SUNAUDIODEV.py | 25 |
5 files changed, 262 insertions, 0 deletions
diff --git a/Demo/sgi/cd/CD.doc b/Demo/sgi/cd/CD.doc new file mode 100755 index 0000000..67f6a02 --- /dev/null +++ b/Demo/sgi/cd/CD.doc @@ -0,0 +1,46 @@ +Introduction. + +A number of programs have been written which access the Silicon +Graphics CD-ROM player. These programs all use the interface defined +in readcd.py (see readcd.doc for documentation). + +Specifying music stretches. + +The programs that are capable of reading music CD's all use the same +syntax to describe which part of the CD is to be read. The syntax +closely corresponds to the available methods in readcd.py. + +The music to be read is divided into stretches of music. Each stretch +must be specified as a separate argument on the command line. A +stretch can be a whole CD track, specified as a single number; or it +can be a start time and a end time. The start and end times must be +specified as a tuple, thus: ``(starttime, endtime)''. Don't forget to +quote the parenthesis to the shell. Both starttime and endtime can be +``None'', a simple number which refers to a CD track, or a tuple +consisting of either 3 or 4 elements. A starttime of ``None'' refers +to the start of the CD, an endtime of ``None'' refers to the end of +the CD. A tuple of 3 elements is an absolute time on the CD. The +three elements are (minutes, seconds, frames). A tuple of 4 elements +is a track-relative time. The four elements are (track, minutes, +seconds, frames). + +When one stretch ends at the end of a track and the following stretch +starts at the next track, there is the option of either playing or not +playing the pause between the two tracks. When either the end time of +the first stretch or the start time of the second stretch is specified +using absolute or track-relative times, the pause will not be played. +When both times are specified as simple track numbers, the pause will +be played. + +If no stretches are specified, the whole CD will be played. + +The programs. + +Currently, the following programs exist. +playcd [ stretch specification ] + Play (part of) a CD through the system loadspeaker or + headphone set. +cdaiff [ file [ stretch specification ] ] + Copy (part of) a CD to a file. The file will be written in + AIFF format. If no file is specified, cdaiff will write to + the file ``@'' in the current directory. diff --git a/Lib/irix5/cdplayer.py b/Lib/irix5/cdplayer.py new file mode 100755 index 0000000..2839021 --- /dev/null +++ b/Lib/irix5/cdplayer.py @@ -0,0 +1,83 @@ +# This file implements a class which forms an interface to the .cdplayerrc +# file that is maintained by SGI's cdplayer program. +# +# Usage is as follows: +# +# import readcd +# r = readcd.Readcd().init() +# c = Cdplayer().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. + +cdplayerrc = '.cdplayerrc' + +class Cdplayer(): + def init(self, tracklist): + import string + self.artist = '' + self.title = '' + self.track = [None] + [''] * len(tracklist) + self.id = 'd' + string.zfill(len(tracklist), 2) + for track in tracklist: + start, length = track + self.id = self.id + string.zfill(length[0], 2) + \ + string.zfill(length[1], 2) + try: + import posix + f = open(posix.environ['HOME'] + '/' + cdplayerrc, 'r') + except IOError: + return self + import regex + reg = regex.compile('^\\([^:]*\\):\t\\(.*\\)') + s = self.id + '.' + l = len(s) + while 1: + line = f.readline() + if line == '': + break + if line[:l] == s: + line = line[l:] + if reg.match(line) == -1: + print 'syntax error in ~/' + cdplayerrc + continue + name = line[reg.regs[1][0]:reg.regs[1][1]] + value = line[reg.regs[2][0]:reg.regs[2][1]] + if name == 'title': + self.title = value + elif name == 'artist': + self.artist = value + elif name[:5] == 'track': + trackno = string.atoi(name[6:]) + self.track[trackno] = value + f.close() + return self + + def write(self): + import posix + filename = posix.environ['HOME'] + '/' + cdplayerrc + try: + old = open(filename, 'r') + except IOError: + old = open('/dev/null', 'r') + new = open(filename + '.new', 'w') + s = self.id + '.' + l = len(s) + while 1: + line = old.readline() + if line == '': + break + if line[:l] <> s: + new.write(line) + new.write(self.id + '.title:\t' + self.title + '\n') + new.write(self.id + '.artist:\t' + self.artist + '\n') + for i in range(1, len(self.track)): + new.write(self.id + '.track.' + `i` + ':\t' + \ + self.track[i] + '\n') + old.close() + new.close() + posix.rename(filename + '.new', filename) diff --git a/Lib/plat-irix5/cdplayer.py b/Lib/plat-irix5/cdplayer.py new file mode 100755 index 0000000..2839021 --- /dev/null +++ b/Lib/plat-irix5/cdplayer.py @@ -0,0 +1,83 @@ +# This file implements a class which forms an interface to the .cdplayerrc +# file that is maintained by SGI's cdplayer program. +# +# Usage is as follows: +# +# import readcd +# r = readcd.Readcd().init() +# c = Cdplayer().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. + +cdplayerrc = '.cdplayerrc' + +class Cdplayer(): + def init(self, tracklist): + import string + self.artist = '' + self.title = '' + self.track = [None] + [''] * len(tracklist) + self.id = 'd' + string.zfill(len(tracklist), 2) + for track in tracklist: + start, length = track + self.id = self.id + string.zfill(length[0], 2) + \ + string.zfill(length[1], 2) + try: + import posix + f = open(posix.environ['HOME'] + '/' + cdplayerrc, 'r') + except IOError: + return self + import regex + reg = regex.compile('^\\([^:]*\\):\t\\(.*\\)') + s = self.id + '.' + l = len(s) + while 1: + line = f.readline() + if line == '': + break + if line[:l] == s: + line = line[l:] + if reg.match(line) == -1: + print 'syntax error in ~/' + cdplayerrc + continue + name = line[reg.regs[1][0]:reg.regs[1][1]] + value = line[reg.regs[2][0]:reg.regs[2][1]] + if name == 'title': + self.title = value + elif name == 'artist': + self.artist = value + elif name[:5] == 'track': + trackno = string.atoi(name[6:]) + self.track[trackno] = value + f.close() + return self + + def write(self): + import posix + filename = posix.environ['HOME'] + '/' + cdplayerrc + try: + old = open(filename, 'r') + except IOError: + old = open('/dev/null', 'r') + new = open(filename + '.new', 'w') + s = self.id + '.' + l = len(s) + while 1: + line = old.readline() + if line == '': + break + if line[:l] <> s: + new.write(line) + new.write(self.id + '.title:\t' + self.title + '\n') + new.write(self.id + '.artist:\t' + self.artist + '\n') + for i in range(1, len(self.track)): + new.write(self.id + '.track.' + `i` + ':\t' + \ + self.track[i] + '\n') + old.close() + new.close() + posix.rename(filename + '.new', filename) diff --git a/Lib/plat-sunos4/SUNAUDIODEV.py b/Lib/plat-sunos4/SUNAUDIODEV.py new file mode 100755 index 0000000..7e46871 --- /dev/null +++ b/Lib/plat-sunos4/SUNAUDIODEV.py @@ -0,0 +1,25 @@ +# Symbolic constants for use with sunaudiodev module +# The names are the same as in audioio.h with the leading AUDIO_ +# removed. + +# Encoding types, for fields i_encoding and o_encoding + +ENCODING_ULAW = 1 +ENCODING_ALAW = 2 + +# Gain ranges for i_gain, o_gain and monitor_gain + +MIN_GAIN = 0 +MAX_GAIN = 255 + +# Port names for i_port and o_port + +PORT_A = 1 +PORT_B = 2 +PORT_C = 3 +PORT_D = 4 + +SPEAKER = PORT_A +HEADPHONE = PORT_B + +MICROPHONE = PORT_A diff --git a/Lib/sunos4/SUNAUDIODEV.py b/Lib/sunos4/SUNAUDIODEV.py new file mode 100755 index 0000000..7e46871 --- /dev/null +++ b/Lib/sunos4/SUNAUDIODEV.py @@ -0,0 +1,25 @@ +# Symbolic constants for use with sunaudiodev module +# The names are the same as in audioio.h with the leading AUDIO_ +# removed. + +# Encoding types, for fields i_encoding and o_encoding + +ENCODING_ULAW = 1 +ENCODING_ALAW = 2 + +# Gain ranges for i_gain, o_gain and monitor_gain + +MIN_GAIN = 0 +MAX_GAIN = 255 + +# Port names for i_port and o_port + +PORT_A = 1 +PORT_B = 2 +PORT_C = 3 +PORT_D = 4 + +SPEAKER = PORT_A +HEADPHONE = PORT_B + +MICROPHONE = PORT_A |