added kludge for buggy soundfiler from SGI; when reading 0 frames,
just set file pointer correctly instead of returning the complete
file.
diff --git a/Lib/aifc.py b/Lib/aifc.py
index 0849bd7..706bba8 100644
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -379,7 +379,16 @@
self._comm_chunk_read = 0
while formlength > 0:
self._ssnd_seek_needed = 1
- chunk = Chunk().init(self._file)
+ #DEBUG: SGI's soundfiler has a bug. There should
+ # be no need to check for EOF here.
+ try:
+ chunk = Chunk().init(self._file)
+ except EOFError:
+ if formlength == 8:
+ print 'Warning: FORM chunk size too large'
+ formlength = 0
+ break
+ raise EOFError # different error, raise exception
formlength = formlength - 8 - chunk.chunksize
if chunk.chunksize & 1:
formlength = formlength - 1
@@ -495,6 +504,8 @@
if pos:
self._ssnd_chunk.setpos(pos + 8)
self._ssnd_seek_needed = 0
+ if nframes == 0:
+ return ''
size = nframes * self._nchannels * self._sampwidth
if self._decomp:
if self._comptype in ('ULAW', 'ALAW'):