rtsp error 461 with freebox stream

[zezinho42]

I am trying to play a stream which works with vlc and ffplay.

In mpv 0.27.1 I get a ffmpeg/demuxer error. (I cannot try 0.28 version as ffmpeg is not recent enough).

Stream is a direct TV given by a french interne provider

Log below :

[cplayer] Playing: rtsp://mafreebox.freebox.fr/fbxtv_pub/stream?namespace=1&service=201&flavour=hd
[ffmpeg] Opening rtsp://mafreebox.freebox.fr/fbxtv_pub/stream?namespace=1&service=201&flavour=hd
[ffmpeg] Stream opened successfully.
[demux] Trying demuxers for level=request.
[cplayer] Run command: disable-section, flags=0, args=[input]
[global] config path: 'fonts' -/-> '/home/live/.config/mpv/fonts'
[global] config path: 'fonts' -/-> '/home/live/.mpv/fonts'
[global] config path: 'fonts' -/-> '/etc/mpv/fonts'
[osd/libass] Shaper: FriBidi 0.19.7 (SIMPLE)
[global] config path: 'subfont.ttf' -/-> '/home/live/.config/mpv/subfont.ttf'
[global] config path: 'subfont.ttf' -/-> '/home/live/.mpv/subfont.ttf'
[global] config path: 'subfont.ttf' -/-> '/etc/mpv/subfont.ttf'
[global] config path: 'fonts.conf' -/-> '/home/live/.config/mpv/fonts.conf'
[global] config path: 'fonts.conf' -/-> '/home/live/.mpv/fonts.conf'
[global] config path: 'fonts.conf' -/-> '/etc/mpv/fonts.conf'
[osd/libass] Setting up fonts...
[lavf] Found 'rtsp' at score=100 size=0 (forced).
[ffmpeg/demuxer] rtsp: SDP:
[ffmpeg/demuxer] v=0
[ffmpeg/demuxer] o=leCDN 1518807555 1518807555 IN IP4 kapoueh.proxad.net
[ffmpeg/demuxer] s=unknown
[ffmpeg/demuxer] i=unknown
[ffmpeg/demuxer] c=IN IP4 0.0.0.0
[ffmpeg/demuxer] t=0 0
[ffmpeg/demuxer] m=video 0 RTP/AVP 33
[ffmpeg/demuxer] a=control:rtsp://mafreebox.freebox.fr:554/fbxtv_pub/stream?namespace=1&service=201&flavour=hd
[ffmpeg/demuxer]
[ffmpeg/demuxer] rtsp: method SETUP failed: 461 Unsupported Transport

[wiiaboo]

Try it with ffmpeg/ffplay?

[zezinho42]

It works with ffplay :

$ffplay "rtsp://mafreebox.freebox.fr/fbxtv_pub/stream?namespace=1&service=201&flavour=hd"
ffplay version 3.3.6 Copyright (c) 2003-2017 the FFmpeg developers
built with gcc 5.4.0 (Mageia 5.4.0-5.mga6)
configuration: --prefix=/usr --enable-shared --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-runtime-cpudetect --enable-libdc1394 --enable-libschroedinger --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libnut --enable-libgsm --enable-libcelt --enable-libopus --enable-libopencv --enable-libopenjpeg --enable-libtwolame --enable-libxavs --enable-frei0r --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-avresample --enable-opencl --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libx264 --enable-libx265 --enable-libvo-amrwbenc --enable-libxvid
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, rtsp, from 'rtsp://mafreebox.freebox.fr/fbxtv_pub/stream?namespace=1&service=201&flavour=hd':
Metadata:
title : unknown
comment : unknown
Duration: N/A, start: 73960.402789, bitrate: N/A
Program 19486
Stream #0:1: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(top first), 1440x1080 [SAR 4:3 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:2(fra): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 140 kb/s
Stream #0:4(qad): Audio: aac (HE-AAC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 57 kb/s
Stream #0:3(qaa): Audio: aac (HE-AAC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 54 kb/s
Stream #0:0(fre,fre,fre): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
No codec could be found with id 94215
[aac @ 0x7fdacc8e6d40] Number of bands (26) exceeds limit (19).
[h264 @ 0x7fdacc32e220] co located POCs unavailableq= 0B f=0/0
[h264 @ 0x7fdacc1a7a60] mmco: unref short failure
[h264 @ 0x7fdacc1b1de0] co located POCs unavailablesq= 0B f=0/0
73962.51 A-V: -0.010 fd= 1 aq= 11KB vq= 461KB sq= 0B f=0/0

[xantoz]

Try with --rtsp-transport=lavf (I think this will do something similar to what ffplay does, re: the transport) or --rtsp-transport=udp to force UDP.

The server seems to be complaining about using an unsupported transport. mpv defaults to forcing TCP, while ffplay in my experience will usually pick UDP.

[ghost]

That's correct. When this was changed, TCP apparently worked much better. But it was a long time ago, when mpv checked network only every video frame, and UDP packet drop could be extreme.

[zezinho42]

Thanks, this works. I suppose mpv could try to change RTSP transport by itself so that end users don't get stuck?