[CB] youtube-dl cannot record HLS streams with recent versions of ffmpeg...

[dustycy]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.11.06. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• [ x] I've verified and I assure that I'm running youtube-dl 2017.11.06

Before submitting an issue make sure you have:

• [ x] At least skimmed through the README, most notably the FAQ and BUGS sections
• [x ] Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• [ x] Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

C:\Users\LAK\Downloads\youtubeDL>youtube_dl -v --hls-prefer-native https://chaturbate.com/sassy3va/
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '--hls-prefer-native', 'https://chaturbate.com/sassy3va/']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2017.11.06
[debug] Python version 3.4.4 - Windows-10-10.0.15063
[debug] exe versions: ffmpeg N-88555-g6ea7711532, ffprobe N-88555-g6ea7711532
[debug] Proxy map: {}
[Chaturbate] sassy3va: Downloading webpage
[Chaturbate] sassy3va: Downloading m3u8 information
[debug] Default format spec: best/bestvideo+bestaudio
[debug] Invoking downloader on 'https://edge74.stream.highwebmedia.com/live-edge/amlst:sassy3va-sd-805c93eeb6934870b52b0a1ca12467953d2dc0b77233f3b10bfbf89d003a010e_trns_h264/chunklist_w670734529_b1896000.m3u8?rp=9078318404d1819d4e0e22f0837b8a3767dffea66806d4583dae4ba068cffd7e&u=AnonymousUser&t=%7B%22username%22%3A%22%22%2C%22org%22%3A%22PHX%22%2C%22expire%22%3A1510054705%2C%22sig%22%3A%225fa12a9712261647822d9a6386cc4ecbc8295e717264deeda29ae221707c878f%22%2C%22room%22%3A%22sassy3va%22%7D'
[download] Destination: sassy3va 2017-11-07 13_37-sassy3va.mp4
[debug] ffmpeg command line: ffmpeg -y -loglevel verbose -headers "Accept-Language: en-us,en;q=0.5
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/47.0 (Chrome)
Accept-Encoding: gzip, deflate
" -i "https://edge74.stream.highwebmedia.com/live-edge/amlst:sassy3va-sd-805c93eeb6934870b52b0a1ca12467953d2dc0b77233f3b10bfbf89d003a010e_trns_h264/chunklist_w670734529_b1896000.m3u8?rp=9078318404d1819d4e0e22f0837b8a3767dffea66806d4583dae4ba068cffd7e&u=AnonymousUser&t=%7B%22username%22%3A%22%22%2C%22org%22%3A%22PHX%22%2C%22expire%22%3A1510054705%2C%22sig%22%3A%225fa12a9712261647822d9a6386cc4ecbc8295e717264deeda29ae221707c878f%22%2C%22room%22%3A%22sassy3va%22%7D" -c copy -f mp4 "-bsf:a" aac_adtstoasc "file:sassy3va 2017-11-07 13_37-sassy3va.mp4.part"
ffmpeg version N-88555-g6ea7711532 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 0.100 / 56. 0.100
libavcodec 58. 1.100 / 58. 1.100
libavformat 58. 0.102 / 58. 0.102
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 0.101 / 7. 0.101
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100

If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://www.youtube.com/watch?v=BaW_jenozKc
• Single video: https://youtu.be/BaW_jenozKc
• Playlist: https://www.youtube.com/playlist?list=PL4lCao7KL_QFVb7Iudeipvc2BCavECqzc

Note that youtube-dl does not support sites dedicated to copyright infringement. In order for site support request to be accepted all provided example URLs should not violate any copyrights.

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Description of your issue, suggested solution and other information

Explanation of your issue in arbitrary form goes here. Please make sure the description is worded well enough to be understood. Provide as much context and examples as possible.
If work on your issue requires account credentials please provide them or explain how one can obtain them.

I occasionally use youtube-dl to record chaturbate live streams and have noticed that it cannot record HLS streams with recent versions of ffmpeg. It hangs up and I am forced to hard exit the program:

Received > 3 system signals, hard exiting
[ffmpeg] Interrupted by user
ERROR: unable to download video data: [WinError 2] The system cannot find the file specified: 'sassy3va 2017-11-07 13_37-sassy3va.mp4.part'
Traceback (most recent call last):
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 1892, in process_info
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 1831, in dl
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\downloader\common.py", line 361, in download
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\downloader\external.py", line 44, in real_download
File "C:\Python\Python34\lib\genericpath.py", line 50, in getsize
FileNotFoundError: [WinError 2] The system cannot find the file specified: 'sassy3va 2017-11-07 13_37-sassy3va.mp4.part'

I can record HLS streams using the latest stable ffmpeg version 3.4. Is this an youtube-dl issue or should it be resolved by ffmpeg people?

[dstftw]

Received > 3 system signals, hard exiting

is most likely a reason.