Use tabs consistently

Replace usage of spaces in code with tabs.

Author: ntrrgc

boxes.py

@@ -937,15 +937,15 @@ def parse_udta_box(ps: Parser):
 		raise AssertionError(f'Optional udta trailer must be a single 32-bit zero, found: {trailer}')
 
 def parse_dcom_box(ps: Parser):
-    ps.field('compression_method', ps.fourcc())
+	ps.field('compression_method', ps.fourcc())
 
 def parse_cmvd_box(ps: Parser):
-    ps.field('uncompressed_size', ps.int(4))
-    compressed_bytes = ps.field_dump('compressed_bytes')
-    import zlib
-    uncompressed_bytes = zlib.decompress(compressed_bytes)
-    sub_ps = Parser(memoryview(uncompressed_bytes), 0, ps.indent)
-    parse_boxes(sub_ps)
+	ps.field('uncompressed_size', ps.int(4))
+	compressed_bytes = ps.field_dump('compressed_bytes')
+	import zlib
+	uncompressed_bytes = zlib.decompress(compressed_bytes)
+	sub_ps = Parser(memoryview(uncompressed_bytes), 0, ps.indent)
+	parse_boxes(sub_ps)
 
 # EMSG
 

parser_tables.py

@@ -330,10 +330,10 @@
 		'mdta': ('QuickTimeMetadataBox', 'Box'),
 		'gmhd': ('BaseMediaInformationHeaderBox', 'Box'),
 		'gmin': ('BaseMediaInfoBox', 'Box'),
-        'ftab': ('FontTableBox', 'Box'),
-        'cmov': ('CompressedMovieBox', 'Box'),
-        'dcom': ('DataCompressionBox', 'Box'),
-        'cmvd': ('CompressedMovieDataBox', 'Box'),
+		'ftab': ('FontTableBox', 'Box'),
+		'cmov': ('CompressedMovieBox', 'Box'),
+		'dcom': ('DataCompressionBox', 'Box'),
+		'cmvd': ('CompressedMovieDataBox', 'Box'),
 	}),
 	({
 		'title': 'Video File Format Specification',
@@ -343,7 +343,7 @@
 		# class names guessed; the F4V spec doesn't give boxes names other than their FourCC's
 		'chpl': ('ChapterListBox', 'FullBox'),
 	}),
-    ({
+	({
 		'name': 'ISO/IEC 23009-1',
 		'title': 'Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 1: Media presentation description and segment formats',
 		'alias': 'DASH',

tests/update-usage.py

@@ -9,17 +9,17 @@
 
 # we could also import options.py and do parser.format_help(), but I like the wrapping...
 helpstr = run(["./mp4parser.py", "--help"],
-    check=True, capture_output=True, encoding="utf-8").stdout
+	check=True, capture_output=True, encoding="utf-8").stdout
 
 helpstr = f'```\n{helpstr}```\n'
 
 with open('README.md', 'r+') as f:
-    text = list(f)
-    idx1 = text.index('<!-- BEGIN USAGE -->\n')
-    idx2 = text.index('<!-- END USAGE -->\n')
-    assert idx1 < idx2
-    text = text[:idx1+1] + [helpstr] + text[idx2:]
-    f.seek(0)
-    f.truncate(0)
-    f.write(''.join(text))
+	text = list(f)
+	idx1 = text.index('<!-- BEGIN USAGE -->\n')
+	idx2 = text.index('<!-- END USAGE -->\n')
+	assert idx1 < idx2
+	text = text[:idx1+1] + [helpstr] + text[idx2:]
+	f.seek(0)
+	f.truncate(0)
+	f.write(''.join(text))