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Sur d’autres sites (8747)

  • 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

  • Using ffmpeg to scale app preview videos for the AppStore

    1er décembre 2018, par Felipe Ferri

    I’m generating an app preview video to send to the AppStore. Depending on the device type, the AppStore requires certain video resolutions.

    I have a main video, with resolution 1920x1080, which I was able to upload.

    I need to generate another video with the resolution 1920x886 for supporting 6.5" devices, so I used the following command to perform the scaling :

    ffmpeg -i video_1920_1080.mp4 -vf scale=1920:886 -c:a copy video_1920_886.mp4

    If I get the info for the generated video using ffmpeg -i I get the following result :

    ffmpeg -i video_1920_886.mp4
    

    
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hittin_1920_886.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.83.100
    
  Duration: 00:00:29.13, start: 0.000000, bitrate: 705 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x886 [SAR 443:540 DAR 16:9], 694 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      timecode        : 00:00:10:20
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s
    
    Metadata:
    
      handler_name    : TimeCodeHandler
    
      timecode        : 00:00:10:20

    Ok, so it seems the output video is in the correct 1920x886 resolution.

    However, when I try to upload this video the AppStore complains that the video is in the incorrect resolution.

    If I open the file properties window on macos, the following information appears for the same video :

    Properties of video_1920_886.mp4

    And, if I open the same video on VLC, I can see the following info on the Media Info screen :

    Codec Details on VLC

    So :

    1. ffmpeg -i tells me the video is in the resolution 1920x886.
    2. macos file properties tells me the video is in the resolution 1575x886.
    3. VLC tells me the video has a Resolution of 1920x898 and a Display Resolution of 1920x886.

    Why are there three different resolutions ? How can I change each one of them ? I suppose the appstoreconnect website expects the file properties resolution to be 1920x886. How can I change that ?

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