version 2017.04.26 Core * Introduce --keep-fragments for keeping fragments of fragmented download on disk after download is finished * [YoutubeDL] Fix output template for missing timestamp (#12796) * [socks] Handle cases where credentials are required but missing * [extractor/common] Improve HLS extraction (#12211) - Extract m3u8 parsing to separate method - Improve rendition groups extraction - Build stream name according stream GROUP-ID - Ignore reference to AUDIO group without URI when stream has no CODECS - Use float for scaled tbr in _parse_m3u8_formats * [utils] Add support for TTML styles in dfxp2srt * [downloader/hls] No need to download keys for fragments that have been already downloaded * [downloader/fragment] Improve fragment downloading - Resume immediately - Don't concatenate fragments and decrypt them on every resume - Optimize disk storage usage, don't store intermediate fragments on disk - Store bookkeeping download state file + [extractor/common] Add support for multiple getters in try_get + [extractor/common] Add support for video of WebPage context in _json_ld (#12778) + [extractor/common] Relax JWPlayer regular expression and remove duplicate URLs (#12768) Extractors * [iqiyi] Fix extraction of Yule videos * [vidio] Improve extraction and sort formats + [brightcove] Match only video elements with data-video-id attribute * [iqiyi] Fix playlist detection (#12504) - [azubu] Remove extractor (#12813) * [porn91] Fix extraction (#12814) * [vidzi] Fix extraction (#12793) + [amp] Extract error message (#12795) + [xfileshare] Add support for gorillavid.com and daclips.com (#12776) * [instagram] Fix extraction (#12777) + [generic] Support Brightcove videos in