fix some types

py_aax_decode/native.py

@@ -1,5 +1,6 @@
 from enum import Enum
 import ctypes
+from ctypes import byref
 import wave
 
 
@@ -20,8 +21,9 @@ class MetaData(Enum):
 
 def main(in_file, out_file, dll_path=None):
     if dll_path is None:
-        dll_path = 'c:\\Program Files (x86)\\Audible\\Bin\\AAXSDKWin.dll'
+        dll_path = 'C:/Program Files (x86)/Audible/Bin/AAXSDKWin.dll'
 
+    print(dll_path)
     dll = ctypes.CDLL(dll_path)
 
     handle = open_file(dll, in_file)
@@ -55,7 +57,7 @@ def main(in_file, out_file, dll_path=None):
 
 
 def open_file(dll, filename):
-    handle = ctypes.pointer(ctypes.c_byte)
+    handle = ctypes.pointer(ctypes.c_byte())
     res = dll.AAXOpenFileWinW(handle, filename)
 
     if res != 0:
@@ -73,7 +75,7 @@ def close_file(dll, handle):
 
 def get_audio_channel_count(dll, handle):
     n_channels = ctypes.c_uint()
-    res = dll.AAXGetAudioChannelCount(handle, n_channels)
+    res = dll.AAXGetAudioChannelCount(handle, byref(n_channels))
 
     if res != 0:
         raise Exception('AAXGetAudioChannelCount: {}'.format(res))
@@ -83,7 +85,7 @@ def get_audio_channel_count(dll, handle):
 
 def get_sample_rate(dll, handle):
     sample_rate = ctypes.c_uint()
-    res = dll.AAXGetSampleRate(handle, sample_rate)
+    res = dll.AAXGetSampleRate(handle, byref(sample_rate))
 
     if res != 0:
         raise Exception('AAXGetSampleRate: {}'.format(res))
@@ -92,7 +94,7 @@ def get_sample_rate(dll, handle):
 
 
 def seek(dll, handle, position=0):
-    res = dll.AAXSeek(handle, position)
+    res = dll.AAXSeek(handle, ctypes.c_int(position))
 
     if res != 0:
         raise Exception('AAXSeek: {}'.format(res))
@@ -110,7 +112,7 @@ def get_encoded_audio(dll, handle, buf=None):
         buf = ctypes.create_string_buffer(0x400)
 
     data_len = ctypes.c_uint()
-    res = dll.AAXGetEncodedAudio(handle, buf, len(buf), data_len)
+    res = dll.AAXGetEncodedAudio(handle, buf, len(buf), byref(data_len))
 
     if res != 0:
         raise Exception('AAXGetEncodedAudio: {}'.format(res))
@@ -123,7 +125,7 @@ def decode_pcm_frame(dll, handle, in_buf, in_len, out_buf=None):
         out_buf = ctypes.create_string_buffer(0x400 * 200)
 
     data_len = ctypes.c_uint()
-    res = dll.AAXDecodedPCMFrame(handle, in_buf, in_len, out_buf, len(out_buf), data_len)
+    res = dll.AAXDecodedPCMFrame(handle, in_buf, in_len, out_buf, len(out_buf), byref(data_len))
 
     if res != 0:
         raise Exception('AAXDecodedPCMFrame: {}'.format(res))
@@ -136,7 +138,7 @@ def get_chapter_text(dll, handle, chapter_num, buf=None):
         buf = ctypes.create_string_buffer(0x400)
 
     data_len = ctypes.c_uint()
-    res = dll.AAXGetChapterText(handle, chapter_num, buf, len(buf), data_len)
+    res = dll.AAXGetChapterText(handle, chapter_num, buf, len(buf), byref(data_len))
 
     if res != 0:
         raise Exception('AAXGetChapterText: {}'.format(res))
@@ -146,13 +148,13 @@ def get_chapter_text(dll, handle, chapter_num, buf=None):
 
 def get_metadata(dll, handle, mdn):
     data_len = ctypes.c_uint()
-    res = dll.AAXGetMetadataInfo(handle, mdn, None, data_len)
+    res = dll.AAXGetMetadataInfo(handle, ctypes.c_int(mdn), None, byref(data_len))
 
     if res != 0:
         raise Exception('AAXGetMetadataInfo: {}'.format(res))
 
     buf = ctypes.create_string_buffer(data_len)
-    res = dll.AAXGetMetadata(handle, mdn, buf, data_len)
+    res = dll.AAXGetMetadata(handle, ctypes.int(mdn), buf, byref(data_len))
 
     if res != 0:
         raise Exception('AAXGetChapterText: {}'.format(res))
@@ -161,7 +163,7 @@ def get_metadata(dll, handle, mdn):
 
 
 def seek_to_chapter(dll, handle, chapter):
-    res = dll.AAXSeekToChapter(handle, chapter)
+    res = dll.AAXSeekToChapter(handle, ctypes.c_uint(chapter))
 
     if res != 0:
         raise Exception('AAXSeekToChapter: {}'.format(res))
@@ -169,7 +171,7 @@ def seek_to_chapter(dll, handle, chapter):
 
 def get_chapter_count(dll, handle):
     n_chapters = ctypes.c_uint()
-    res = dll.AAXGetChapterCount(handle, n_chapters)
+    res = dll.AAXGetChapterCount(handle, byref(n_chapters))
 
     if res != 0:
         raise Exception('AAXGetChapterCount: {}'.format(res))
@@ -179,7 +181,7 @@ def get_chapter_count(dll, handle):
 
 def get_current_chapter(dll, handle):
     chapter = ctypes.c_uint()
-    res = dll.AAXGetCurrentChapter(handle, chapter)
+    res = dll.AAXGetCurrentChapter(handle, byref(chapter))
 
     if res != 0:
         raise Exception('AAXGetCurrentChapter: {}'.format(res))
@@ -189,7 +191,7 @@ def get_current_chapter(dll, handle):
 
 def get_duration(dll, handle):
     duration = ctypes.c_uint()
-    res = dll.AAXGetDuration(handle, duration)
+    res = dll.AAXGetDuration(handle, byref(duration))
 
     if res != 0:
         raise Exception('AAXGetDuration: {}'.format(res))
@@ -199,7 +201,7 @@ def get_duration(dll, handle):
 
 def get_playback_position(dll, handle):
     position = ctypes.c_uint()
-    res = dll.AAXGetPlaybackPosition(handle, position)
+    res = dll.AAXGetPlaybackPosition(handle, byref(position))
 
     if res != 0:
         raise Exception('AAXGetPlaybackPosition: {}'.format(res))
@@ -209,7 +211,7 @@ def get_playback_position(dll, handle):
 
 def get_chapter_start_time(dll, handle, chapter):
     position = ctypes.c_uint()
-    res = dll.AAXGetChapterStartTime(handle, position, chapter)
+    res = dll.AAXGetChapterStartTime(handle, byref(position), chapter)
 
     if res != 0:
         raise Exception('AAXGetChapterStartTime: {}'.format(res))
@@ -219,7 +221,7 @@ def get_chapter_start_time(dll, handle, chapter):
 
 def get_avg_bitrate(dll, handle):
     bitrate = ctypes.c_uint()
-    res = dll.AAXGetAvgBitrate(handle, bitrate)
+    res = dll.AAXGetAvgBitrate(handle, byref(bitrate))
 
     if res != 0:
         raise Exception('AAXGetAvgBitrate: {}'.format(res))
@@ -229,7 +231,7 @@ def get_avg_bitrate(dll, handle):
 
 def get_max_bitrate(dll, handle):
     bitrate = ctypes.c_uint()
-    res = dll.AAXGetMaxBitrate(handle, bitrate)
+    res = dll.AAXGetMaxBitrate(handle, byref(bitrate))
 
     if res != 0:
         raise Exception('AAXGetAvgBitrate: {}'.format(res))