Can't connects rtmp(e) but ffplay can

[nicol]

Summary of the bug: ffplay and rtmpdump can connects rtmpe but ffmpeg can't.

Similar ticket #6363

page url
​https://vod.ouj.ac.jp/view/ouj/#/navi/player?co=6978&ct=V&ca=826

How to reproduce:

% ffmpeg -i "rtmpe://vod-st.ouj.ac.jp:80/classtream" -rtmp_app "classtream?authTicket=94a2b8d0caf9b89d5e946a7378dc1d11b347a5a05de3542ef1b10643924c20a739cf9849f22e469b0a0e9135ee4d2c40737701c175b1fe23129e03ad222e378eb93cefbfa81e083935ed7b5bcbbbf55d" -rtmp_playpath "mp4:1/6978.mp4" -rtmp_swfurl "https://vod.ouj.ac.jp/classtream-player/v1.2/js/video-js/5.12.6/video-js.swf" -c copy out.flv
ffmpeg version N-92712-g011c9112a0
built on ... zeranoe ffmpeg

ffmpeg version N-92712-g011c9112a0 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20181201
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --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-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 24.101 / 56. 24.101
  libavcodec     58. 42.102 / 58. 42.102
  libavformat    58. 24.101 / 58. 24.101
  libavdevice    58.  6.101 / 58.  6.101
  libavfilter     7. 46.101 /  7. 46.101
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '1'.
Reading option '-i' ... matched as input url with argument 'rtmpe://vod-st.ouj.ac.jp:80/classtream'.
Reading option '-rtmp_app' ... matched as AVOption 'rtmp_app' with argument 'classtream?authTicket=94a2b8d0caf9b89d5e946a7378dc1d11b347a5a05de3542ef1b10643924c20a739cf9849f22e469b0a0e9135ee4d2c40737701c175b1fe23129e03ad222e378eb93cefbfa81e083935ed7b5bcbbbf55d'.
Reading option '-rtmp_playpath' ... matched as AVOption 'rtmp_playpath' with argument 'mp4:1/6978.mp4'.
Reading option '-rtmp_swfurl' ... matched as AVOption 'rtmp_swfurl' with argument 'https://vod.ouj.ac.jp/classtream-player/v1.2/js/video-js/5.12.6/video-js.swf'.
Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option 'a.flv' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument 9.
Successfully parsed a group of options.
Parsing a group of options: input url rtmpe://vod-st.ouj.ac.jp:80/classtream.
Applying option t (record or transcode "duration" seconds of audio/video) with argument 1.
Successfully parsed a group of options.
Opening an input file: rtmpe://vod-st.ouj.ac.jp:80/classtream.
[NULL @ 00000000004d3ac0] Opening 'rtmpe://vod-st.ouj.ac.jp:80/classtream' for reading
[rtmpe @ 00000000004d5280] No default whitelist set
[ffrtmpcrypt @ 00000000004d5780] No default whitelist set
[tcp @ 00000000004d5b00] No default whitelist set
[tcp @ 00000000004d5b00] Original list of addresses:
[tcp @ 00000000004d5b00] Address 153.156.202.95 port 80
[tcp @ 00000000004d5b00] Address 202.124.221.59 port 80
[tcp @ 00000000004d5b00] Interleaved list of addresses:
[tcp @ 00000000004d5b00] Address 153.156.202.95 port 80
[tcp @ 00000000004d5b00] Address 202.124.221.59 port 80
[tcp @ 00000000004d5b00] Starting connection attempt to 153.156.202.95 port 80
[tcp @ 00000000004d5b00] Successfully connected to 153.156.202.95 port 80
[rtmpe @ 00000000004d5280] Handshaking...
[rtmpe @ 00000000004d5280] Type answer 6
[rtmpe @ 00000000004d5280] Server version 5.0.8.1
[rtmpe @ 00000000004d5280] Proto = rtmpe, path = /classtream, app = classtream, fname = 
[rtmpe @ 00000000004d5280] Window acknowledgement size = 2500000
[rtmpe @ 00000000004d5280] Max sent, unacked = 2500000
[rtmpe @ 00000000004d5280] New incoming chunk size = 4096
[rtmpe @ 00000000004d5280] Unknown connect error (unsupported authentication method?)
[rtmpe @ 00000000004d5280] Server error: Connection failed.
rtmpe://vod-st.ouj.ac.jp:80/classtream: Unknown error occurred

rtmpdump ​https://github.com/K-S-V/Scripts/releases

rtmpdump -r "rtmpe://vod-st.ouj.ac.jp:80/classtream" -a "classtream?authTicket=94a2b8d0caf9b89d5e946a7378dc1d11b347a5a05de3542ef1b10643924c20a739cf9849f22e469b0a0e9135ee4d2c40737701c175b1fe23129e03ad222e378eb93cefbfa81e083935ed7b5bcbbbf55d"  -W "https://vod.ouj.ac.jp/classtream-player/v1.2/js/video-js/5.12.6/video-js.swf"  -y "mp4:1/6978.mp4" -o "out.flv"

[Carl Eugen Hoyos]

$ ffmpeg -f data -rtmp_app "classtream?authTicket=94a2b8d0caf9b89d5e946a7378dc1d11b347a5a05de3542ef1b10643924c20a739cf9849f22e469b0a0e9135ee4d2c40737701c175b1fe23129e03ad222e378eb93cefbfa81e083935ed7b5bcbbbf55d" -rtmp_playpath "mp4:1/6978.mp4" -rtmp_swfurl "https://vod.ouj.ac.jp/classtream-player/v1.2/js/video-js/5.12.6/video-js.swf" -i "rtmpe://vod-st.ouj.ac.jp:80/classtream" -c copy -map 0 -f data out.flv
ffmpeg version N-92718-g092cb17 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 6.4.0 (GCC)
  configuration: --enable-gpl --enable-libxml2 --enable-gnutls --enable-gmp --enable-version3 --enable-libx264
  libavutil      56. 24.101 / 56. 24.101
  libavcodec     58. 42.102 / 58. 42.102
  libavformat    58. 24.101 / 58. 24.101
  libavdevice    58.  6.101 / 58.  6.101
  libavfilter     7. 46.101 /  7. 46.101
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
Input #0, data, from 'rtmpe://vod-st.ouj.ac.jp:80/classtream':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Data: none
Output #0, data, to 'out.flv':
  Metadata:
    encoder         : Lavf58.24.101
    Stream #0:0: Data: none
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
size=    1898kB time=00:00:00.00 bitrate=N/A speed=   0x
video:0kB audio:0kB subtitle:0kB other streams:1898kB global headers:0kB muxing overhead: 0.000000%

(Quitting manually)