mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-12-22 16:06:49 +00:00
Some improvements were added to Utils.py and YoutubeDL.py
This commit is contained in:
Josef Bohórquez
parent
0153b387e5
commit
1b599af1db
@ -2371,60 +2371,38 @@ class YoutubeDL(object):
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return res
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def _format_note(self, fdict):
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res = ''
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if fdict.get('ext') in ['f4f', 'f4m']:
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res += '(unsupported) '
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note_parts = []
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if fdict.get('ext') in ('f4f', 'f4m'):
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note_parts.append('(unsupported)')
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if fdict.get('language'):
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if res:
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res += ' '
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res += '[%s] ' % fdict['language']
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if fdict.get('format_note') is not None:
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res += fdict['format_note'] + ' '
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note_parts.append(f'[{fdict["language"]}]')
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if fdict.get('format_note'):
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note_parts.append(fdict['format_note'])
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if fdict.get('tbr') is not None:
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res += '%4dk ' % fdict['tbr']
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note_parts.append('%4dk' % fdict['tbr'])
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if fdict.get('container') is not None:
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if res:
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res += ', '
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res += '%s container' % fdict['container']
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if (fdict.get('vcodec') is not None
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and fdict.get('vcodec') != 'none'):
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if res:
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res += ', '
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res += fdict['vcodec']
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if fdict.get('vbr') is not None:
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res += '@'
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elif fdict.get('vbr') is not None and fdict.get('abr') is not None:
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res += 'video@'
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note_parts.append('%s container' % fdict['container'])
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if fdict.get('vcodec') not in (None, 'none'):
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note_parts.append(fdict['vcodec'] + ('@' if fdict.get('vbr') else ''))
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elif fdict.get('vbr') is not None:
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note_parts.append('video@')
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if fdict.get('vbr') is not None:
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res += '%4dk' % fdict['vbr']
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note_parts.append('%4dk' % fdict['vbr'])
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if fdict.get('fps') is not None:
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if res:
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res += ', '
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res += '%sfps' % fdict['fps']
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note_parts.append('%sfps' % fdict['fps'])
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if fdict.get('acodec') is not None:
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if res:
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res += ', '
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if fdict['acodec'] == 'none':
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res += 'video only'
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else:
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res += '%-5s' % fdict['acodec']
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note_parts.append('video only' if fdict['acodec'] == 'none' else '%-5s' % fdict['acodec'])
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elif fdict.get('abr') is not None:
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if res:
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res += ', '
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res += 'audio'
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note_parts.append('audio')
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if fdict.get('abr') is not None:
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res += '@%3dk' % fdict['abr']
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note_parts.append('@%3dk' % fdict['abr'])
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if fdict.get('asr') is not None:
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res += ' (%5dHz)' % fdict['asr']
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note_parts.append('(%5dHz)' % fdict['asr'])
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if fdict.get('filesize') is not None:
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if res:
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res += ', '
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res += format_bytes(fdict['filesize'])
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note_parts.append(format_bytes(fdict['filesize']))
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elif fdict.get('filesize_approx') is not None:
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if res:
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res += ', '
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res += '~' + format_bytes(fdict['filesize_approx'])
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return res
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note_parts.append('~' + format_bytes(fdict['filesize_approx']))
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return ' '.join(note_parts)
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def list_formats(self, info_dict):
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formats = info_dict.get('formats', [info_dict])
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@ -6002,114 +6002,63 @@ def parse_m3u8_attributes(attrib):
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def urshift(val, n):
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return val >> n if val >= 0 else (val + 0x100000000) >> n
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# Based on png2str() written by @gdkchan and improved by @yokrysty
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# Originally posted at https://github.com/ytdl-org/youtube-dl/issues/9706
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def decode_png(png_data):
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# Reference: https://www.w3.org/TR/PNG/
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header = png_data[8:]
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if png_data[:8] != b'\x89PNG\x0d\x0a\x1a\x0a' or header[4:8] != b'IHDR':
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if png_data[:8] != b'\x89PNG\x0d\x0a\x1a\x0a':
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raise IOError('Not a valid PNG file.')
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int_map = {1: '>B', 2: '>H', 4: '>I'}
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unpack_integer = lambda x: compat_struct_unpack(int_map[len(x)], x)[0]
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def unpack_integer(data):
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return compat_struct_unpack(f'>{int_map[len(data)]}', data)[0]
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int_map = {1: 'B', 2: 'H', 4: 'I'}
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header = png_data[8:]
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chunks = []
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while header:
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length = unpack_integer(header[:4])
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header = header[4:]
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chunk_type, chunk_data, header = header[4:8], header[8:8 + length], header[8 + length + 4:]
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chunks.append({'type': chunk_type, 'data': chunk_data})
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chunk_type = header[:4]
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header = header[4:]
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if not (ihdr := next((c["data"] for c in chunks if c["type"] == b'IHDR'), None)):
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raise IOError("Unable to read PNG header.")
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chunk_data = header[:length]
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header = header[length:]
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header = header[4:] # Skip CRC
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chunks.append({
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'type': chunk_type,
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'length': length,
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'data': chunk_data
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})
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ihdr = chunks[0]['data']
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width = unpack_integer(ihdr[:4])
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height = unpack_integer(ihdr[4:8])
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idat = b''
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for chunk in chunks:
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if chunk['type'] == b'IDAT':
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idat += chunk['data']
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width, height = unpack_integer(ihdr[:4]), unpack_integer(ihdr[4:8])
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idat = b''.join(c['data'] for c in chunks if c['type'] == b'IDAT')
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if not idat:
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raise IOError('Unable to read PNG data.')
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decompressed_data = bytearray(zlib.decompress(idat))
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stride = width * 3
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pixels = []
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def _get_pixel(idx):
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x = idx % stride
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y = idx // stride
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return pixels[y][x]
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pixels = [[] for _ in range(height)]
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def _get_pixel(x, y):
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return pixels[y][x] if x >= 0 and y >= 0 else 0
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for y in range(height):
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basePos = y * (1 + stride)
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filter_type = decompressed_data[basePos]
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current_row = []
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pixels.append(current_row)
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filter_type = decompressed_data[y * (1 + stride)]
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for x in range(stride):
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color = decompressed_data[1 + basePos + x]
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basex = y * stride + x
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left = 0
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up = 0
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color = decompressed_data[1 + y * (1 + stride) + x]
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left, up = _get_pixel(x - 3, y), _get_pixel(x, y - 1)
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if x > 2:
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left = _get_pixel(basex - 3)
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if y > 0:
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up = _get_pixel(basex - stride)
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if filter_type == 1: # Sub
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if filter_type == 1: # Sub
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color = (color + left) & 0xff
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elif filter_type == 2: # Up
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elif filter_type == 2: # Up
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color = (color + up) & 0xff
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elif filter_type == 3: # Average
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elif filter_type == 3: # Average
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color = (color + ((left + up) >> 1)) & 0xff
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elif filter_type == 4: # Paeth
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a = left
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b = up
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c = 0
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if x > 2 and y > 0:
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c = _get_pixel(basex - stride - 3)
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elif filter_type == 4: # Paeth
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a, b, c = left, up, _get_pixel(x - 3, y - 1)
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p = a + b - c
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pa = abs(p - a)
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pb = abs(p - b)
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pc = abs(p - c)
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if pa <= pb and pa <= pc:
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color = (color + a) & 0xff
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elif pb <= pc:
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color = (color + b) & 0xff
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else:
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color = (color + c) & 0xff
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current_row.append(color)
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pa, pb, pc = abs(p - a), abs(p - b), abs(p - c)
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color = (color + (a if pa <= pb and pa <= pc else b if pb <= pc else c)) & 0xff
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pixels[y].append(color)
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return width, height, pixels
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def write_xattr(path, key, value):
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# This mess below finds the best xattr tool for the job
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try:
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