Download file mp3 with link .m3u8

[npthinhdev]

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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 https://5bd725165e3d4.s treamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/chunklist_w303007929.m3u8), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/chunklist_w303007929.m3u8']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.01.02
[debug] Python version 2.7.15rc1 (CPython) - Linux-4.4.0-17763-Microsoft-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 3.4.4-0ubuntu0.18.04.1, ffprobe 3.4.4-0ubuntu0.18.04.1
[debug] Proxy map: {}
[generic] chunklist_w303007929: Requesting header
[generic] chunklist_w303007929: Downloading m3u8 information
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on u'https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/chunklist_w303007929.m3u8'
[download] Destination: chunklist_w303007929-chunklist_w303007929.mp4
[debug] ffmpeg command line: ffmpeg -y -loglevel verbose -headers 'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0
' -i 'https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/chunklist_w303007929.m3u8' -c copy -f mp4 '-bsf:a' aac_adtstoasc 'file:chunklist_w303007929-chunklist_w303007929.mp4.part'
ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
[hls,applehttp @ 0x7fffc9281740] HLS request for url 'https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/media_w303007929_0.mp3', offset 0, playlist 0
[hls,applehttp @ 0x7fffc9281740] Opening 'https://dethi.moon.vn/videojs/authenticate.aspx?wowzasessionid=303007929' for reading
[hls,applehttp @ 0x7fffc9281740] Opening 'crypto+https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/media_w303007929_0.mp3' for reading
[mp3 @ 0x7fffc95d7680] Skipping 0 bytes of junk at 0.
Input #0, hls,applehttp, from 'https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/chunklist_w303007929.m3u8':
  Duration: 00:03:09.23, start: 0.000000, bitrate: 0 kb/s
  Program 0
    Metadata:
      variant_bitrate : 0
    Stream #0:0: Audio: mp3, 22050 Hz, mono, s16p, 24 kb/s
    Metadata:
      variant_bitrate : 0
[AVBSFContext @ 0x7fffc972e100] Codec 'mp3' (86017) is not supported by the bitstream filter 'aac_adtstoasc'. Supported codecs are: aac (86018)
Error initializing bitstream filter: aac_adtstoasc
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
    Last message repeated 1 times


ERROR: ffmpeg exited with code 1
  File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/bin/youtube-dl/__main__.py", line 19, in <module>
    youtube_dl.main()
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 472, in main
    _real_main(argv)
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 462, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2002, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 804, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 858, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1636, in process_video_result
    self.process_info(new_info)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1909, in process_info
    success = dl(filename, info_dict)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1848, in dl
    return fd.download(name, info)
  File "/usr/local/bin/youtube-dl/youtube_dl/downloader/common.py", line 364, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/bin/youtube-dl/youtube_dl/downloader/external.py", line 64, in real_download
    self.get_basename(), retval))
  File "/usr/local/bin/youtube-dl/youtube_dl/downloader/common.py", line 165, in report_error
    self.ydl.report_error(*args, **kargs)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 621, in report_error
    self.trouble(error_message, tb)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 583, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())
<end of log>

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Description of your issue, suggested solution and other information

I want to download stream file mp3 by link .m3u8 but I have an error:
[AVBSFContext @ 0x7fffdbaa00e0] Codec 'mp3' (86017) is not supported by the bitstream filter 'aac_adtstoasc'. Supported codecs are: aac (86018) Error initializing bitstream filter: aac_adtstoasc
How can I fix it?
Thanks!

[remitamine]

the commit should fix the parsing of FFmpeg version, in this case, 3.4.4-0ubuntu0.18.04.1 will be parsed as 3.4.4 and the result of the condition:

                if (ffpp.basename == 'ffmpeg' and is_outdated_version(ffpp._versions['ffmpeg'], '3.2', False)) and (not info_dict.get('acodec') or info_dict['acodec'].split('.')[0] in ('aac', 'mp4a')):
                    args += ['-bsf:a', 'aac_adtstoasc']

will be false and '-bsf:a' aac_adtstoasc option will not be part of the ffmpeg command.

[dstftw]

Version is not necessarily in X.Y.Z format, e.g. Windows builds ffmpeg N-85653-gb4330a0.

[npthinhdev]

So, I use ffmpeg command: ffmpeg -i <URL>.m3u8 -c:v copy -bsf:v aac_adtstoasc <FILE>.mp3 and it's working. But I don't know youtube-dl has a command like it?

[Vangelis66]

So, I use ffmpeg command:
ffmpeg -i <URL>.m3u8 -c:v copy -bsf:v aac_adtstoasc <FILE>.mp3
and it's working.

@npthinh1996
Your stream does not have a video component, so
-c:v copy is wrong.
Then, there's no video bitstream filter (-bsf:v) called aac_adtstoasc (in fact, it's an audio bitstream filter), so again -bsf:v aac_adtstoasc is wrong.
Your ffmpeg copy is probably disregarding those invalid arguments and recoding the mp3 stream to default ffmpeg parametres (e.g. @ 128kbps VBR); you do not want that; to save the original stream

Stream #0:0: Audio: mp3, 22050 Hz, mono, s16p, 24 kb/s

you should use:
ffmpeg -i <URL>.m3u8 -c:a copy <FILE>.mp3

MP3 files streamed in AppleHLSe (i.e. AES-128 encrypted) format are quite uncommon; most common audio codec used in HLS is aac, such a HLS stream is first dumped by yt-dl (by ffmpeg or native python downloader) in the default MPEG-TS container, then yt-dl calls ffmpeg (with -bsf:a aac_adtstoasc) to remux to the MPEG4 container and yield an end .m4a audio file...

How I could have dumped your stream?

youtube-dl --console-title --hls-prefer-native --hls-use-mpegts -c --no-part --fixup never "https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/master.m3u8" -o foo.mp3

[generic] master: Requesting header
[generic] master: Downloading m3u8 information
[hlsnative] Downloading m3u8 manifest
[hlsnative] Total fragments: 19
[download] Destination: foo.mp3
[download] 100% of 553.30KiB in 00:42

--hls-prefer-native leaves ffmpeg out from the downloading part, --hls-use-mpegts makes sure the dumped stream is saved in the MPEG-TS container (MP3 compatible) and --fixup never makes sure the downloaded file is not touched at all by ffmpeg.

MediaInfo log of file foo.mp3:

General
Complete name                            : foo.mp3
Format                                   : MPEG Audio
File size                                : 553 KiB
Duration                                 : 3 min 8 s
Overall bit rate mode                    : Constant
Overall bit rate                         : 24.0 kb/s

Audio
Format                                   : MPEG Audio
Format version                           : Version 2
Format profile                           : Layer 3
Duration                                 : 3 min 8 s
Bit rate mode                            : Constant
Bit rate                                 : 24.0 kb/s
Channel(s)                               : 1 channel
Sampling rate                            : 22.05 kHz
Frame rate                               : 38.281 FPS (576 SPF)
Compression mode                         : Lossy
Stream size                              : 553 KiB (100%)

[npthinhdev]

youtube-dl --console-title --hls-prefer-native --hls-use-mpegts -c --no-part --fixup never "https://5bd725165e3d4.streamlock.net/test/_definst_/mp3:TOEIC/Audio/19990.mp3/master.m3u8" -o foo.mp3 it can download file mp3 but the sound is so bad.
So, I think I can use ffmpeg command in my case:
ffmpeg -i <URL>.m3u8 -c:a copy <FILE>.mp3
Thanks for your support! :D

[Vangelis66]

@npthinh1996 wrote:

it can download file mp3 but the sound is so bad.

... blame those people providing the stream; the download command fetches the stream in its original quality, i.e. without re-(trans-)coding 😉 BTW, you never posted any info on the page that .m3u8 playlist was harvested from; perhaps better qualities are available there, but I suspect this matter does not fit in this yt-dl tracker...

So, I think I can use ffmpeg command in my case:
ffmpeg -i <URL>.m3u8 -c:a copy <FILE>.mp3

... and you'll get an identical file to using yt-dl...

Thanks for your support!

You are welcome; just a fellow yt-dl user, sadly with 0 coding skills but with some expertise on streaming methodologies, media files/codecs/containers acquired over the years... 😄