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• FFmpeg : Audio Filter taking too long

  29 novembre 2018, par Prashant_Sarin

  I am using the code below to apply a volume filter in ffmpeg, but it is taking too long. A 5-minute audiofile filter takes 3 minutes. Can someone give advice on how I can speed it up.

  My command is :

  var command = "-i $audioPath -af volume=enable='between(t,5,10)+between(t,15,20)':volume=0.25:eval=frame $outputFile"

  Logs are :

  2018-11-29 16:58:22.487 23387-23387/com.example.prashants.ffmpegtest D/com.example.prashants.ffmpegtest.service.AudioOverlayService: onProgress -    ---AudioVolume---- size=    1537kB time=00:01:40.41 bitrate= 125.4kbits/s speed=1.13x    
  
  2018-11-29 16:58:22.489 23387-23387/com.example.prashants.ffmpegtest D/com.example.prashants.ffmpegtest.service.AudioOverlayService: onProgress ----AudioVolume---- video:0kB audio:1518kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.260607%
  
  2018-11-29 16:58:22.490 23387-23387/com.example.prashants.ffmpegtest D/com.example.prashants.ffmpegtest.service.AudioOverlayService: onProgress ----AudioVolume---- bench: utime=86.707s
  
  2018-11-29 16:58:22.491 23387-23387/com.example.prashants.ffmpegtest D/com.example.prashants.ffmpegtest.service.AudioOverlayService: onProgress ----AudioVolume---- bench: maxrss=65792kB
  
  2018-11-29 16:58:22.492 23387-23387/com.example.prashants.ffmpegtest D/com.example.prashants.ffmpegtest.service.AudioOverlayService: onProgress ----AudioVolume---- [aac @ 0xb1ce4400] Qavg: 17415.965 
  
  2018-11-29 16:58:22.493 23387-23387/com.example.prashants.ffmpegtest D/com.example.prashants.ffmpegtest.service.AudioOverlayService: AudioVolume success--------- -benchmark -threads 4 -i /storage/emulated/0/FFmpegTest/looped.m4a -af volume=enable='between(t,5,10)+between(t,15,20)':volume=0.25:eval=frame 
  
  /storage/emulated/0/FFmpegTest/filtered_audio.m4a

• Intel QuickSync error : Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  30 novembre 2018, par Arie Syamsudin

  I want to make IPTV with a topology like this :

  Restream / source -----> IPTV server -----> User

  The problem at the moment is the question of bandwidth that is still large.

  Finally I announced by IPTV software providers to transcode with Intel QuickSync video and FFmpeg.

  I followed the steps given by the software provider at the following link :
  http://www.ezhometech.com/document/intel_ffmpeg.txt

  Which comes from the link below :
  https://www.intel.com/content/dam/www/public/us/en/documents/white-paper...

  I installed IPTV software on a laptop with an Intel processor, chipset and VGA.

  [root@iptv ffmpeg-4.1]# **lspci**
  
  00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
  
  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
  
  00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
  
  00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
  
  00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
  
  00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
  
  00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
  
  00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
  
  00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
  
  00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 05)
  
  00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
  
  01:00.0 Ethernet controller: Qualcomm Atheros AR8152 v2.0 Fast Ethernet (rev c1)
  
  02:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
  
  
  
  [root@iptv ffmpeg-4.1]# **lspci -nn -s 0:02.0**
  
  00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)

  but when I do a transcoding test, an error always appears :
  Error initializing output stream 0:0 — Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height.

  Error details :
  https://paste.fedoraproject.org/paste/vp9XIzbeOuyXRuLBlLfSng

  FFmpeg log :

  ./ffmpeg  -hwaccel qsv -i http://premium-play.org:8000/domm0H56Cj/q3ODLP6C16/2826 -vcodec h264_qsv -acodec copy -b:v 1200K -f mpegts udp://127.0.0.1:9011?pkt_size=1316
  
  ffmpeg version 3.2.12 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
  
    configuration: --enable-libmfx --enable-nonfree
  
    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
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
  Input #0, mpegts, from 'http://premium-play.org:8000/domm0H56Cj/q3ODLP6C16/2826':
  
    Duration: N/A, start: 30200.274878, bitrate: N/A
  
    Program 1
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 100 tbc
  
      Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 125 kb/s
  
  libva info: VA-API version 1.0.0
  
  libva info: va_getDriverName() returns 0
  
  libva info: User requested driver 'iHD'
  
  libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
  
  libva info: Found init function __vaDriverInit_1_0
  
  libva info: va_openDriver() returns 0
  
  [h264_qsv @ 0x2a89500] Selected ratecontrol mode is not supported by the QSV runtime. Choose a different mode.
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_qsv))
  
    Stream #0:1 -> #0:1 (copy)
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

• ffmpeg - ffmpeg aws lamnda function error

  30 novembre 2018, par Pramod Gehlot

  I am getting error

  Execution result : failed(logs)
  Details

  The area below shows the result returned by your function execution. Learn more about returning results from your function.

  {
  
    "errorMessage": "RequestId: eb7906af-f46d-11e8-ae3b-45487c02a68e Process exited before completing request"
  
  }

  Summary

  Code SHA-256
  
  ca50xloHl4xLOSWox2xidHxC1VHyNqwq3kECKraw7/c=
  
  Request ID
  
  eb7906af-f46d-11e8-ae3b-45487c02a68e
  
  Duration
  
  38.73 ms
  
  Billed duration
  
  100 ms
  
  Resources configured
  
  128 MB
  
  Max memory used
  
  19 MB

  Log output

  The section below shows the logging calls in your code. These correspond to a single row within the CloudWatch log group corresponding to this Lambda function. Click here to view the CloudWatch log group.

  START RequestId: eb7906af-f46d-11e8-ae3b-45487c02a68e Version: $LATEST
  
  2018-11-30T07:02:38.509Z    eb7906af-f46d-11e8-ae3b-45487c02a68e    TypeError: Cannot create property 'stack' on string 'Could not find ffmpeg executable, tried "/var/task/node_modules/@ffmpeg-installer/linux-x64/ffmpeg" and "/var/task/node_modules/@ffmpeg-installer/ffmpeg/node_modules/@ffmpeg-installer/linux-x64/ffmpeg"'
  
  
  
  END RequestId: eb7906af-f46d-11e8-ae3b-45487c02a68e
  
  REPORT RequestId: eb7906af-f46d-11e8-ae3b-45487c02a68e  Duration: 38.73 ms  Billed Duration: 100 ms     Memory Size: 128 MB Max Memory Used: 19 MB  
  
  RequestId: eb7906af-f46d-11e8-ae3b-45487c02a68e Process exited before completing request