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51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
#!/usr/bin/env python
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# Allow direct execution
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import os
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import sys
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import unittest
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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import io
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from yt_dlp.postprocessor.mp4direct import (
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parse_mp4_boxes,
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write_mp4_boxes,
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)
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TEST_SEQUENCE = [
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('test', b'123456'),
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('trak', b''),
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('helo', b'abcdef'),
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('1984', b'1q84'),
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('moov', b''),
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('keys', b'2022'),
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(None, 'moov'),
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('topp', b'1991'),
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(None, 'trak'),
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]
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# on-file reprensetation of the above sequence
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TEST_BYTES = b'\x00\x00\x00\x0etest123456\x00\x00\x00Btrak\x00\x00\x00\x0eheloabcdef\x00\x00\x00\x0c19841q84\x00\x00\x00\x14moov\x00\x00\x00\x0ckeys2022\x00\x00\x00\x0ctopp1991'
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class TestMP4Parser(unittest.TestCase):
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def test_write_sequence(self):
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with io.BytesIO() as w:
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write_mp4_boxes(w, TEST_SEQUENCE)
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bs = w.getvalue()
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self.assertEqual(TEST_BYTES, bs)
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def test_read_bytes(self):
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with io.BytesIO(TEST_BYTES) as r:
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result = list(parse_mp4_boxes(r))
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self.assertListEqual(TEST_SEQUENCE, result)
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def test_mismatched_box_end(self):
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with io.BytesIO() as w, self.assertRaises(AssertionError):
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write_mp4_boxes(w, [
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('moov', b''),
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('trak', b''),
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(None, 'moov'),
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(None, 'trak'),
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])
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