Bug#819266: ffmpeg: rtmp is broken

[Ralf Jung]

Package: ffmpeg
Version: 7:2.8.6-1+b2
Severity: normal

Dear Maintainer,

something about rtmp is broken in ffmpeg as shipped in Debian.
For example, the Revision RTMP streams <https://2016.revision-party.net/live> do not work in either MPV or VLC.
However, after building mpv and ffmpeg using mpv-build <https://github.com/mpv-player/mpv-build>, the streams
*do* work -- and since MPV and VLC shows the same error, I suspect ffmpeg is the culprit here.

$ mpv 'rtmp://revision.scenesat.com/live/mainhall'
Playing: rtmp://revision.scenesat.com/live/mainhall
[ffmpeg] HandShake: client signature does not match!
[ffmpeg] Closing connection: NetStream.Play.StreamNotFound
Failed to open rtmp://revision.scenesat.com/live/mainhall.

Kind regards,
Ralf


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable-debug'), (100, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages ffmpeg depends on:
ii  libavcodec-ffmpeg-extra56  7:2.8.6-1+b2
ii  libavdevice-ffmpeg56       7:2.8.6-1+b2
ii  libavfilter-ffmpeg5        7:2.8.6-1+b2
ii  libavformat-ffmpeg56       7:2.8.6-1+b2
ii  libavresample-ffmpeg2      7:2.8.6-1+b2
ii  libavutil-ffmpeg54         7:2.8.6-1+b2
ii  libc6                      2.22-3
ii  libpostproc-ffmpeg53       7:2.8.6-1+b2
ii  libsdl1.2debian            1.2.15+dfsg1-4
ii  libswresample-ffmpeg1      7:2.8.6-1+b2
ii  libswscale-ffmpeg3         7:2.8.6-1+b2
ii  libvdpau1                  1.1.1-3
ii  libx11-6                   2:1.6.3-1

ffmpeg recommends no packages.

Versions of packages ffmpeg suggests:
pn  ffmpeg-doc  <none>

-- no debconf information