def _inject(self, fileobj): """Write tag data into the FLAC Vorbis comment packet/page.""" # Ogg FLAC has no convenient data marker like Vorbis, but the # second packet - and second page - must be the comment data. fileobj.seek(0) page = OggPage(fileobj) while not page.packets[0].startswith(b"\x7FFLAC"): page = OggPage(fileobj) first_page = page while not (page.sequence == 1 and page.serial == first_page.serial): page = OggPage(fileobj) old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == first_page.serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) # Set the new comment block. data = self.write() data = bytes( (packets[0][0], )) + struct.pack(">I", len(data))[-3:] + data packets[0] = data new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): """Write tag data into the Speex comment packet/page.""" fileobj.seek(0) # Find the first header page, with the stream info. # Use it to get the serial number. page = OggPage(fileobj) while not page.packets[0].startswith(b"Speex "): page = OggPage(fileobj) # Look for the next page with that serial number, it'll start # the comment packet. serial = page.serial page = OggPage(fileobj) while page.serial != serial: page = OggPage(fileobj) # Then find all the pages with the comment packet. old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == old_pages[0].serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) # Set the new comment packet. packets[0] = self.write(framing=False) new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): """Write tag data into the FLAC Vorbis comment packet/page.""" # Ogg FLAC has no convenient data marker like Vorbis, but the # second packet - and second page - must be the comment data. fileobj.seek(0) page = OggPage(fileobj) while not page.packets[0].startswith(b"\x7FFLAC"): page = OggPage(fileobj) first_page = page while not (page.sequence == 1 and page.serial == first_page.serial): page = OggPage(fileobj) old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == first_page.serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) # Set the new comment block. data = self.write() data = bytes((packets[0][0],)) + struct.pack(">I", len(data))[-3:] + data packets[0] = data new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): """Write tag data into the Speex comment packet/page.""" fileobj.seek(0) # Find the first header page, with the stream info. # Use it to get the serial number. page = OggPage(fileobj) while not page.packets[0].startswith(b"Speex "): page = OggPage(fileobj) # Look for the next page with that serial number, it'll start # the comment packet. serial = page.serial page = OggPage(fileobj) while page.serial != serial: page = OggPage(fileobj) # Then find all the pages with the comment packet. old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == old_pages[0].serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) # Set the new comment packet. packets[0] = self.write(framing=False) new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def test_from_packets_position(self): packets = [b"1" * 100000] pages = OggPage.from_packets(packets) self.failUnless(len(pages) > 1) for page in pages[:-1]: self.failUnlessEqual(-1, page.position) self.failUnlessEqual(0, pages[-1].position)
def test_too_many_packets(self): packets = [b"1"] * 3000 pages = OggPage.from_packets(packets) for p in pages: OggPage.write(p) self.failUnless(len(pages) > 3000//255)
def _inject(self, fileobj): fileobj.seek(0) info = OggOpusInfo(fileobj) old_pages = self.__get_comment_pages(fileobj, info) packets = OggPage.to_packets(old_pages) packets[0] = b"OpusTags" + self.write(framing=False) new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): fileobj.seek(0) info = OggOpusInfo(fileobj) old_pages = self.__get_comment_pages(fileobj, info) packets = OggPage.to_packets(old_pages) packets[0] = b"OpusTags" + self.write(framing=False) new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def test_random_data_roundtrip(self): try: random_file = open("/dev/urandom", "rb") except (IOError, OSError): print("WARNING: Random data round trip test disabled.") return for i in range(10): num_packets = random.randrange(2, 100) lengths = [random.randrange(10, 10000) for i in range(num_packets)] packets = [random_file.read(l) for l in lengths] self.failUnlessEqual( packets, OggPage.to_packets(OggPage.from_packets(packets)))
def _inject(self, fileobj): """Write tag data into the Theora comment packet/page.""" fileobj.seek(0) page = OggPage(fileobj) while not page.packets[0].startswith(b"\x81theora"): page = OggPage(fileobj) old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == old_pages[0].serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) packets[0] = b"\x81theora" + self.write(framing=False) new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): """Write tag data into the Theora comment packet/page.""" fileobj.seek(0) page = OggPage(fileobj) while not page.packets[0].startswith(b"\x81theora"): page = OggPage(fileobj) old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == old_pages[0].serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) packets[0] = b"\x81theora" + self.write(framing=False) new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): """Write tag data into the Vorbis comment packet/page.""" # Find the old pages in the file; we'll need to remove them, # plus grab any stray setup packet data out of them. fileobj.seek(0) page = OggPage(fileobj) while not page.packets[0].startswith(b"\x03vorbis"): page = OggPage(fileobj) old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == old_pages[0].serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) # Set the new comment packet. packets[0] = b"\x03vorbis" + self.write() new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def _inject(self, fileobj): """Write tag data into the Vorbis comment packet/page.""" # Find the old pages in the file; we'll need to remove them, # plus grab any stray setup packet data out of them. fileobj.seek(0) page = OggPage(fileobj) while not page.packets[0].startswith(b"\x03vorbis"): page = OggPage(fileobj) old_pages = [page] while not (old_pages[-1].complete or len(old_pages[-1].packets) > 1): page = OggPage(fileobj) if page.serial == old_pages[0].serial: old_pages.append(page) packets = OggPage.to_packets(old_pages, strict=False) # Set the new comment packet. packets[0] = b"\x03vorbis" + self.write() new_pages = OggPage.from_packets(packets, old_pages[0].sequence) OggPage.replace(fileobj, old_pages, new_pages)
def test_from_packets_long(self): packets = [b"1" * 100000, b"2" * 100000, b"3" * 100000] pages = OggPage.from_packets(packets) self.failIf(pages[0].complete) self.failUnless(pages[1].continued) self.failUnlessEqual(OggPage.to_packets(pages), packets)
def test_one_packet_per_wiggle(self): packets = [b"1" * 511, b"2" * 511, b"3" * 511] pages = OggPage.from_packets( packets, default_size=1000, wiggle_room=1000000) self.failUnlessEqual(len(pages), 2) self.failUnlessEqual(OggPage.to_packets(pages), packets)
def test_crappy_fragmentation(self): packets = [b"1" * 511, b"2" * 511, b"3" * 511] pages = OggPage.from_packets(packets, default_size=510, wiggle_room=0) self.failUnless(len(pages) > 3) self.failUnlessEqual(OggPage.to_packets(pages), packets)
def test_complete_zero_length(self): packets = [b""] * 20 page = OggPage.from_packets(packets)[0] new_page = OggPage(io.BytesIO(page.write())) self.failUnlessEqual(new_page, page) self.failUnlessEqual(OggPage.to_packets([new_page]), packets)
def test_from_packets_short_enough(self): packets = [b"1" * 200, b"2" * 200, b"3" * 200] pages = OggPage.from_packets(packets) self.failUnlessEqual(OggPage.to_packets(pages), packets)