+ streaming_formats = try_get(player_response, lambda x: x['streamingData']['formats'], list)
+ if streaming_formats:
+ for fmt in streaming_formats:
+ itag = str_or_none(fmt.get('itag'))
+ if not itag:
+ continue
+ quality = fmt.get('quality')
+ quality_label = fmt.get('qualityLabel') or quality
+ formats_spec[itag] = {
+ 'asr': int_or_none(fmt.get('audioSampleRate')),
+ 'filesize': int_or_none(fmt.get('contentLength')),
+ 'format_note': quality_label,
+ 'fps': int_or_none(fmt.get('fps')),
+ 'height': int_or_none(fmt.get('height')),
+ 'quality': q(quality),
+ # bitrate for itag 43 is always 2147483647
+ 'tbr': float_or_none(fmt.get('averageBitrate') or fmt.get('bitrate'), 1000) if itag != '43' else None,
+ 'width': int_or_none(fmt.get('width')),
+ }