def _data_rate(self):
"""Return data rate (bit rate)."""
if self._stream_type() not in ['video', 'audio']:
raise SkipElementException()
if self._mediainfo is None:
return None
if self._mediainfo_stream.bit_rate is not None:
if self._mediainfo_stream.track_type == 'Video':
return strip_zeros(
str(float(self._mediainfo_stream.bit_rate) / 1000000))
return strip_zeros(
str(float(self._mediainfo_stream.bit_rate) / 1000))
return '(:unav)'
def _codec_quality(self):
"""
Return codec quality.
Must be resolved, if returns None. Only values 'lossy' or 'lossless'
are allowed.
"""
if self._stream_type() not in ['video', 'audio']:
raise SkipElementException()
if self._mediainfo is None:
return None
if self._mediainfo_stream.compression_mode is not None:
return self._mediainfo_stream.compression_mode.lower()
return None
def _data_rate_mode(self):
"""
Return data rate mode.
Must be resolved, if returns None. The allowed values are 'Fixed' and
'Variable'.
"""
if self._stream_type() not in ['video', 'audio']:
raise SkipElementException()
if self._mediainfo is None:
return None
if self._mediainfo_stream.bit_rate_mode == 'CBR':
return 'Fixed'
if self._mediainfo_stream.bit_rate_mode is not None:
return 'Variable'
return None
def _color(self):
"""
Return color information.
Only values from fixed list are allowed. Must be resolved, if returns
None.
"""
if self._stream_type() not in ['video']:
raise SkipElementException()
if self._ffmpeg is None:
return None
if 'pix_fmt' in self._ffmpeg_stream:
if self._ffmpeg_stream["pix_fmt"] in ["gray"]:
return "Grayscale"
if self._ffmpeg_stream["pix_fmt"] in ["monob", "monow"]:
return "B&W"
return 'Color'
return None
def _color(self):
"""
Return color information.
Only values from fixed list are allowed. Must be resolved, if returns
None.
"""
if self._stream_type() not in ['video']:
raise SkipElementException()
if self._mediainfo is None:
return None
if self._mediainfo_stream.color_space is not None:
if self._mediainfo_stream.color_space in ['RGB', 'YUV']:
return 'Color'
if self._mediainfo_stream.color_space in ['Y']:
return 'Grayscale'
if self._mediainfo_stream.chroma_subsampling is not None:
return 'Color'
return None
def _codec_quality(self):
"""Returns codec quality."""
if self._stream_type() == 'audio':
return 'lossless'
raise SkipElementException()
