Ich versuche einen Stream zu erstellen der automatisch Inputs per Random nachläd. Das ganze möchte ich später noch auf eine Datenbank ausweiten.
Jedesmal wenn ffmpeg beendet und neu beginnt, also den Input ändert wird die Verbindung zum rtmp kurz unterbrochen wodurch die ganze Verbindung zusammenbricht. Ich habe dann probiert Audio und Video zu trennen, diese an virtuelle Devices zu senden und von dort wieder zu lesen. Den stream also auf virtuelle Devices spliten, direkt wieder zusammensetzen und an den rtmp senden. Wenn der Input dann getauscht wird unterbricht zwar das senden zu den Devices was dem zweiten ffmpeg aber nicht stört. Sobald ich aufhöre auf die Devices zu senden gehen die fps sehr langsam (10 - 20 sek) von 25 auf 0. Erst dann bricht der Sender ffmpeg zum rtmp die Verbindung an. Das Script was die Inputs tauscht braucht nur eine Sekunde. Ein Praxistest zeigte das alles wie gewünscht funktioniert.
Ich kann ganz gemütlich den Input wechseln wärend der zweite ffmpeg den stream aufrecht erhält...
Die Freude hielt jedoch nicht lange. Der Sound ist gut 1 sek verzögert. Aber sporadisch. Mal klappt alles super. Mal ist der Ton versetzt.
Ich habe mir hierfür mehrere Scripts geschrieben.
Ausgangslage:
1. Datei wird per Zufall ausgewählt
2. Mediadatei wird gesplittet und auf /dev/video0 (v4l loopback) und alsa default (snd_aloop loopback) geschrieben
3. Die splits wieder zusammen setzen und auf einen rtmp Server streamen
### Code der den Input auswählt und an /dev/video0 und alsa default sendet
Code: Alles auswählen
#!/bin/bash
cat /dev/null > log
while true;
do
WATERMARK="watermark.png";
dir='/homeXXXXXXXXXX/mix'
file=`/bin/ls -1 "$dir" | sort --random-sort | head -1`
DATEI=`readlink --canonicalize "$dir/$file"` # Converts to full path
if [ -z $DATEI ]
then
echo "Keine Datei gefunden" >> log;
else
START=$(date +%s);
echo "Sende $DATEI" >> log;
ffmpeg -re -y -i "$DATEI" -c:v libx264 -vf "fps=25,scale=640:480,setdar=4:3" -async 1 -pix_fmt yuv420p -preset ultrafast -map 0:0 -f v4l2 -vcodec rawvideo /dev/video0 -f alsa default
fi
DOKILL=`cat kill`;
if [ "$DOKILL" = "1"]
then
break;
fi
done
Code: Alles auswählen
./run.sh
ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1' --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-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/mix/XXXXXXXXXXXXX.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : XXXXXXXXXXXXXXX
encoder : Lavf57.41.100
Duration: 00:03:53.48, start: 0.000000, bitrate: 2705 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2573 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
handler_name : SoundHandler
Codec AVOption preset (Configuration preset) specified for output file #0 (/dev/video0) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
[Parsed_setdar_2 @ 0x5571234fe020] num:den syntax is deprecated, please use num/den or named options instead
-async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.
Output #0, v4l2, to '/dev/video0':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : XXXXXXXXXXX
encoder : Lavf57.56.101
Stream #0:0(und): Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc57.64.101 rawvideo
Output #1, alsa, to 'default':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : XXXXXXXXXX
encoder : Lavf57.56.101
Stream #1:0(und): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc57.64.101 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
Stream #0:1 -> #1:0 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
frame= 736 fps= 24 q=-0.0 Lsize=N/A time=00:00:29.67 bitrate=N/A speed=0.979x
video:331200kB audio:5112kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Exiting normally, received signal 2.
Code: Alles auswählen
cat send_stream.sh
#!/bin/bash
IP="XXXXXXXXX";
ffmpeg -f video4linux2 -i /dev/video0 -f alsa -acodec pcm_s16le -i default -f flv -async 1 -pix_fmt yuv420p -preset ultrafast -vcodec libx264 -r 25 -s 640x260 -acodec aac rtmp://$IP:1935/live/test
Code: Alles auswählen
./send_stream.sh
ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1' --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-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1548393682.674066, bitrate: 110592 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, 110592 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
Guessed Channel Layout for Input Stream #1.0 : stereo
Input #1, alsa, from 'default':
Duration: N/A, start: 1548393682.677901, bitrate: 1536 kb/s
Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
-async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.
[libx264 @ 0x55e22cfa4f00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x55e22cfa4f00] profile Constrained Baseline, level 2.1
[libx264 @ 0x55e22cfa4f00] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, flv, to 'rtmp://XXXXXXXXXXX:1935/live/test':
Metadata:
encoder : Lavf57.56.101
Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x260, q=-1--1, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc57.64.101 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.64.101 aac
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
[alsa @ 0x55e22cf87300] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
[video4linux2,v4l2 @ 0x55e22cf84fe0] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
Past duration 0.613319 too large 7344kB time=00:01:05.85 bitrate= 913.5kbits/s speed=1.04x
Past duration 0.614372 too large 7644kB time=00:01:08.39 bitrate= 915.6kbits/s speed=1.04x
Past duration 0.609749 too large 7834kB time=00:01:10.91 bitrate= 905.0kbits/s speed=1.04x
Past duration 0.604362 too large 8038kB time=00:01:12.92 bitrate= 903.0kbits/s speed=1.04x
Past duration 0.609489 too large 8070kB time=00:01:13.45 bitrate= 900.1kbits/s speed=1.04x
Past duration 0.615013 too large 8094kB time=00:01:13.94 bitrate= 896.8kbits/s speed=1.04x
Past duration 0.610893 too large 8179kB time=00:01:14.94 bitrate= 894.0kbits/s speed=1.04x
Past duration 0.664711 too large
Past duration 0.639565 too large 8263kB time=00:01:15.47 bitrate= 896.8kbits/s speed=1.04x
Past duration 0.668999 too large 8339kB time=00:01:15.94 bitrate= 899.5kbits/s speed=1.04x
Past duration 0.605766 too large
Past duration 0.633049 too large 8399kB time=00:01:16.48 bitrate= 899.6kbits/s speed=1.04x
Past duration 0.674599 too large
Past duration 0.616035 too large 8451kB time=00:01:16.95 bitrate= 899.7kbits/s speed=1.04x
Past duration 0.656136 too large
Past duration 0.604195 too large
Past duration 0.601387 too large 8512kB time=00:01:17.46 bitrate= 900.2kbits/s speed=1.04x
Past duration 0.621895 too large 8565kB time=00:01:17.95 bitrate= 900.1kbits/s speed=1.04x
Past duration 0.670937 too large 8605kB time=00:01:18.46 bitrate= 898.4kbits/s speed=1.04x
Past duration 0.604500 too large 8642kB time=00:01:18.99 bitrate= 896.2kbits/s speed=1.04x
frame= 1913 fps= 25 q=-1.0 Lsize= 8670kB time=00:01:19.48 bitrate= 893.6kbits/s speed=1.04x
video:7290kB audio:1280kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.160292%
[libx264 @ 0x55e22cfa4f00] frame I:8 Avg QP:18.25 size: 15502
[libx264 @ 0x55e22cfa4f00] frame P:1905 Avg QP:20.95 size: 3853
[libx264 @ 0x55e22cfa4f00] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0x55e22cfa4f00] mb P I16..4: 6.4% 0.0% 0.0% P16..4: 38.1% 0.0% 0.0% 0.0% 0.0% skip:55.5%
[libx264 @ 0x55e22cfa4f00] coded y,uvDC,uvAC intra: 46.0% 30.3% 13.4% inter: 20.1% 9.8% 1.1%
[libx264 @ 0x55e22cfa4f00] i16 v,h,dc,p: 47% 34% 10% 9%
[libx264 @ 0x55e22cfa4f00] i8c dc,h,v,p: 45% 28% 22% 5%
[libx264 @ 0x55e22cfa4f00] kb/s:750.98
[aac @ 0x55e22cfa62a0] Qavg: 579.067
Exiting normally, received signal 2.
Code: Alles auswählen
Past duration 0.616035 too large 8451kB time=00:01:16.95 bitrate= 899.7kbits/s speed=1.04x
Past duration 0.656136 too large
Past duration 0.604195 too large
Past duration 0.601387 too large 8512kB time=00:01:17.46 bitrate= 900.2kbits/s speed=1.04x
Code: Alles auswählen
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
Stream #0:1 -> #1:0 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
frame= 9 fps=0.0 q=-0.0 size=N/A time=00:00:00.36 bitrate=N/A dup=1 drop=0 spframe= 21 fps= 21 q=-0.0 size=N/A time=00:00:00.84 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.
Last message repeated 1 times
frame= 33 fps= 22 q=-0.0 size=N/A time=00:00:01.32 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.
Last message repeated 1 times
frame= 46 fps= 23 q=-0.0 size=N/A time=00:00:01.84 bitrate=N/A dup=1 drop=0 spframe= 58 fps= 23 q=-0.0 size=N/A time=00:00:02.32 bitrate=N/A dup=1 drop=0 spframe= 71 fps= 24 q=-0.0 size=N/A time=00:00:02.84 bitrate=N/A dup=1 drop=0 spframe= 83 fps= 24 q=-0.0 size=N/A time=00:00:03.32 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.
frame= 96 fps= 24 q=-0.0 size=N/A time=00:00:03.84 bitrate=N/A dup=1 drop=0 sp[alsa @ 0x5643b3293160] ALSA buffer xrun.
Weiss jemand vielleicht Rat und kann mir weiter helfen?