[FFmpeg-user] FFMpeg Streaming via UDP

[Bogdan Mariesan]

Hi everyone,

I am trying to achieve a *P2P *connection via *UDP *and for that I'm
following the wiki guide.

On my server I am using:

*ffmpeg -f dshow -video_size 640x360 -rtbufsize 702000k -framerate 30 -i
video="Integrated Camera":audio="Microphone (5- Logitech USB Headset H340)"
-r 30 -threads 4 -vcodec libx264 -pix_fmt yuv420p -tune zerolatency -preset
ultrafast -f mpegts udp:/10.166.141.198:23202 <http://10.166.141.198:23202>*

Where *10.166.141.198 *is the IP of an Android device and *23202 *is the
UDP port opened by the NAT after doing UDP hole punching.

Based on the example in the guide (
https://trac.ffmpeg.org/wiki/StreamingGuide) I assume on the client I have
to connect to the client in a similar manner. I might be wrong here since
the guide uses the same IP address for both client and server.

So on the client I am connection the URL *udp://5.2.55.19:51810?localport=50341
<http://5.2.55.19:51810?localport=50341>*.
Where *5.2.55.19 *is the IP of the serverm *51810 *is the public port and
*50341* is the private port obtained after doing UDP hole punching.
On the client side the stream seems to work but on my mobile device the app
i have built using IJKPlayer (https://github.com/Bilibili/ijkplayer)
doesn't display my stream. So is it due to the way I am listening for the
UDP stream?


Client side log:

ffmpeg version N-79630-g9ac154d Copyright (c) 2000-2016 the FFmpeg
developers
  built with gcc 5.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libopus --enable-librtmp
--enable-libschroedinger --enable-libsnappy --enable-libsoxr
--enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
--enable-lzma --enable-decklink --enable-zlib
  libavutil      55. 22.101 / 55. 22.101
  libavcodec     57. 38.100 / 57. 38.100
  libavformat    57. 34.103 / 57. 34.103
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 44.100 /  6. 44.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Guessed Channel Layout for  Input Stream #0.1 : stereo
Input #0, dshow, from 'video=Integrated Camera:audio=Microphone (5-
Logitech USB Headset H340)':
  Duration: N/A, start: 1386931.560000, bitrate: N/A
    Stream #0:0: Video: rawvideo, bgr24, 640x360, 30 fps, 31 tbr, 10000k tbn
    Stream #0:1: Audio: pcm_s16le, 44100 Hz, 2 channels, s16, 1411 kb/s
[libx264 @ 0000000008a4be20] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0000000008a4be20] profile Constrained Baseline, level 3.0
[mpegts @ 00000000086fd880] Using AVStream.codec to pass codec parameters
to muxers is deprecated, use AVStream.codecpar instead.
    Last message repeated 1 times
Output #0, mpegts, to 'udp://109.166.141.198:61623?localport=53366':
  Metadata:
    encoder         : Lavf57.34.103
    Stream #0:0: Video: h264, yuv420p, 640x360, q=2-31, 30 fps, 90k tbn
    Metadata:
      encoder         : Lavc57.38.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1: Audio: mp2, 44100 Hz, stereo, s16, 384 kb/s
    Metadata:
      encoder         : Lavc57.38.100 mp2
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (pcm_s16le (native) -> mp2 (native))
Press [q] to stop, [?] for help
Past duration 0.659996 too large
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frame=   23 fps=0.0 q=22.0 size=     122kB time=00:00:01.13 bitrate=
878.5kbits/s speed=2.26x
Past duration 0.739998 too large
Past duration 0.779991 too large
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frame=   37 fps= 37 q=22.0 size=     201kB time=00:00:01.60
bitrate=1031.2kbits/s speed= 1.6x
Past duration 0.699989 too large
Past duration 0.739998 too large
Past duration 0.749992 too large
frame=   53 fps= 35 q=22.0 size=     275kB time=00:00:02.13
bitrate=1054.7kbits/s speed=1.42x

Kind regards,

*Bogdan Emil Mariesan*
Senior Software Engineer

*BuddyGuard UG* (haftungsbeschränkt)
Dircksenstr. 40
10178 Berlin

m:         +40 743 901 331
w.           www.buddyguard.io