[FFmpeg-user] Facing issues in streaming videos

Tue Mar 10 10:02:51 EET 2020

I am using below hardware specs for streaming 20 channels

Cpu:
        AMD Ryzen 7 2700
        AMD A320 chipset
        16GB DDR4 RAM
        NVidia GT 710 2GB card

Am using ffmpeg Version :

ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
  configuration:
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100

================================================================================
Tasks: 289 total,  12 running, 176 sleeping,   0 stopped,   0 zombie
%Cpu(s): 58.3 us,  1.9 sy, 38.9 ni,  0.4 id,  0.0 wa,  0.0 hi,  0.5 si,
 0.0 st
KiB Mem : 16423264 total, 11093572 free,  4733008 used,   596684 buff/cache
KiB Swap:   999420 total,   999420 free,        0 used. 11328952 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
 5025 root      20   0 3598168 229808  33836 R 126.4  1.4   0:08.70 ffmpeg
 4613 root      20   0 3598308 231520  33964 R 119.5  1.4   0:10.89 ffmpeg
 5231 root      20   0 3598536 223284  33920 R 117.2  1.4   0:05.79 ffmpeg
 5460 root      20   0 2541288 207180  33596 R 115.8  1.3   0:06.18 ffmpeg
 4446 root      20   0 3471104 292120  33896 R 110.2  1.8   0:20.06 ffmpeg
 5563 root      20   0 2545748 206224  33140 R 103.3  1.3   0:03.52 ffmpeg
 4476 root      20   0 3643392 324660  33932 S  82.5  2.0   0:14.31 ffmpeg
 4482 root      20   0 3650476 301012  34032 R  78.9  1.8   0:14.06 ffmpeg
 4504 root      20   0 3598264 231616  33868 S  75.2  1.4   0:11.53 ffmpeg
 4458 root      20   0 3649952 297736  33896 R  74.9  1.8   0:17.60 ffmpeg
 4452 root      20   0 3473868 296656  33928 S  73.3  1.8   0:15.71 ffmpeg
 4819 root      20   0 3598336 220988  34028 S  64.4  1.3   0:07.31 ffmpeg
 4510 root      20   0 3597992 222540  34152 S  64.0  1.4   0:09.64 ffmpeg
 4490 root      20   0 3649456 290672  33732 R  63.4  1.8   0:13.47 ffmpeg
 4922 root      20   0 3598496 228344  33796 S  63.4  1.4   0:05.26 ffmpeg
 4470 root      20   0 3639348 317708  33688 R  63.0  1.9   0:14.01 ffmpeg
 4464 root      20   0 3639132 316420  34032 R  61.4  1.9   0:12.07 ffmpeg
 4498 root      20   0 3597804 222796  34088 S  58.1  1.4   0:11.54 ffmpeg
 5128 root      20   0 3598156 217808  33676 S  50.2  1.3   0:03.97 ffmpeg
 4716 root      20   0 1952556 129808  34060 S  19.8  0.8   0:03.28 ffmpeg
   94 root      20   0       0      0      0 S   0.3  0.0   0:00.08
ksoftirqd/14
  171 root      20   0       0      0      0 I   0.3  0.0   0:00.28
kworker/1:1
  173 root      20   0       0      0      0 I   0.3  0.0   0:00.22
kworker/5:1
  176 root      20   0       0      0      0 I   0.3  0.0   0:00.45
kworker/8:1
  178 root      20   0       0      0      0 I   0.3  0.0   0:00.51
kworker/10:1
  897 root      20   0       0      0      0 I   0.3  0.0   0:00.27
kworker/3:2
 1045 root      20   0       0      0      0 I   0.3  0.0   0:00.37
kworker/12:2
 1461 www-data  20   0  360740   4080   2580 S   0.3  0.0   0:00.51 apache2
 1462 www-data  20   0  360740   4080   2580 S   0.3  0.0   0:00.51 apache2
    1 root      20   0  185216   5876   4044 S   0.0  0.0   0:01.49 systemd
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kthreadd
    3 root      20   0       0      0      0 I   0.0  0.0   0:00.01
kworker/0:0

===========================================================================

But am facing memory consumption issue within 2 hours all RAM memories are
full and streams are jerking to play.

What is the solution for this problem. Is hardware is enough to play 20
streamers.

Am using below commands for streaming services

=================================================================
# Stream 1
STREAM_NAME=stream1
STREAM_PID_PATH=/tmp/$STREAM_NAME-pid
INPUT_URL=udp://224.1.1.1:1100
CH_NAME=mv_movies_hd

     ffmpeg -i "$INPUT_URL?overrun_nonfatal=1&fifo_size=5000000"  \
    -filter_complex
"[v:0]split=2[vtemp001][vtemp002];[vtemp001]scale=w=640:h=360[vout001],[vtemp002]scale=w=854:h=480[vout002]"
\
    -map [vout001] -c:v:0 mpeg2video -b:v:0 600k -maxrate:v:0 900k
-bufsize:v:0 1200k \
    -map [vout002] -c:v:1 mpeg2video -b:v:1 1000k -maxrate:v:1 1500k
-bufsize:v:1 2000k \
    -map a:0 -map a:0 -c:a aac -b:a 128k -ac 2 \
    -f hls -hls_time 2 -hls_list_size 4 \
    -hls_wrap 40 -hls_allow_cache 0 \
    -hls_delete_threshold 1 \
    -hls_flags delete_segments \
    -hls_start_number_source datetime \
    -start_number 10 \
    -hls_playlist_type event -master_pl_name $CH_NAME.mpeg \
    -hls_segment_filename stream_%v/data%06d.ts \
     -use_localtime_mkdir 1 \
    -var_stream_map "v:0,a:0 v:1,a:1" -crf 22  stream_%v.mpeg
=============================================================