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  • FFmpeg/FFplay directshow and blackmagic

    21 janvier 2016, par max246

    I got a BlackMagic intensity pro 4k capturing card, which is working fine with the express tool, I can see the live feed and record, but after I tried different stuff from what I found online to make ffplay/ffmpeg working, I ended up to have just a black screen.

    I have checked if all the versions of my ffmpeg files were eanable-decklinnk, I have compiled the latest one with the latest version of the api, but still I get a black screen instead of the actually feed.

    ffmpeg -list_devices true -f dshow -i dummy
    ffmpeg version N-77245-g7209c94 Copyright (c) 2000-2015 the FFmpeg developers
     built with gcc 5.2.0 (Rev4, Built by MSYS2 project)
     configuration:  --enable-avisynth --enable-libbluray --enable-libcaca --enable -libass --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
    --enable-libschroedinger --enable-libsoxr --enable-libtwolame --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libtesseract --
    enable-libdcadec --enable-libbs2b --enable-libmfx --enable-libfreetype --enable-fontconfig --enable-libfribidi --enable-opengl --enable-libvpx --enable-libkvaza
    ar --enable-libwebp --enable-decklink --enable-libgme --disable-w32threads --enable-opencl --enable-libzimg --enable-openssl --disable-debug
     libavutil      55. 10.100 / 55. 10.100
     libavcodec     57. 17.100 / 57. 17.100
     libavformat    57. 20.100 / 57. 20.100
     libavdevice    57.  0.100 / 57.  0.100
     libavfilter     6. 21.100 /  6. 21.100
     libswscale      4.  0.100 /  4.  0.100
     libswresample   2.  0.101 /  2.  0.101
    [dshow @ 0000000ba36b6480] DirectShow video devices (some may be both video and audio devices)
    [dshow @ 0000000ba36b6480]  "Blackmagic WDM Capture"
    [dshow @ 0000000ba36b6480]     Alternative name "@device_pnp_\\?\decklink#avstream#5&2550cef9&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\decklinkcapture1"
    [dshow @ 0000000ba36b6480]  "Decklink Video Capture"
    [dshow @ 0000000ba36b6480]     Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{44A8B5C7-13B6-4211-BD40-35B629D9E6DF}"
    [dshow @ 0000000ba36b6480] DirectShow audio devices
    [dshow @ 0000000ba36b6480]  "Wej?øcie liniowe (Blackmagic Audio)"
    [dshow @ 0000000ba36b6480]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{977E2DB6-B17C-4343-9018-652924C20A8C}"
    [dshow @ 0000000ba36b6480]  "Decklink Audio Capture"
    [dshow @ 0000000ba36b6480]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{AAA22F7E-5AA0-49D9-8C8D-B52B1AA92EB7}"
    dummy: Immediate exit requested

    The result above tells me that ffmpeg can see the card and I am able to open a communication, I have checked one post where it says you need to specific which input type is showing, otherwise it will never work, and I did that, but still no luck.

    By running the command line above, I can only see a black screen but not actually errors.

    I am running Windows 8.1 64bit.

    ffplay  -pixel_format uyvy422 -framerate 25 -f dshow -i video="Decklink Video Capture"  -format x264
    ffplay version N-77245-g7209c94 Copyright (c) 2003-2015 the FFmpeg developers
     built with gcc 5.2.0 (Rev4, Built by MSYS2 project)
     configuration:  --enable-avisynth --enable-libbluray --enable-libcaca --enable-libass --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
    --enable-libschroedinger --enable-libsoxr --enable-libtwolame --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libopus --enable-libtesseract --
    enable-libdcadec --enable-libbs2b --enable-libmfx --enable-libfreetype --enable-fontconfig --enable-libfribidi --enable-opengl --enable-libvpx --enable-libkvaza
    ar --enable-libwebp --enable-decklink --enable-libgme --disable-w32threads --enable-opencl --enable-libzimg --enable-openssl --disable-debug
     libavutil      55. 10.100 / 55. 10.100
     libavcodec     57. 17.100 / 57. 17.100
     libavformat    57. 20.100 / 57. 20.100
     libavdevice    57.  0.100 / 57.  0.100
     libavfilter     6. 21.100 /  6. 21.100
     libswscale      4.  0.100 /  4.  0.100
     libswresample   2.  0.101 /  2.  0.101
    Input #0, dshow, from 'video=Decklink Video Capture':    0B f=0/0
     Duration: N/A, start: 0.138773, bitrate: N/A
       Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 720x576, 25 tbr,
    10000k tbn, 25 tbc
      1.51 M-V: -0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
  • nginx RTMP to HLS : FFMPG error when trying multiple bitrate output [closed]

    28 mai 2014, par user3685074

    I’m currently trying to convert my RTMP Livestream into a HLS with 3 quality-settings.

    I followed this guide

    I’ve compiled my own FFMPEG and it’s working if I just convert 1 file.
    It seems libx264 isn’t able to do multiple encodings at the same time ?

    I’m using these command :

           exec /usr/local/bin/ffmpeg -i rtmp://localhost/src/$name
           -c:a libfdk_aac -b:a 32k   -c:v libx264 -b:v 128K -f flv rtmp://localhost/hls/$name_low
           -c:a libfdk_aac -b:a 64k   -c:v libx264 -b:v 256K -f flv rtmp://localhost/hls/$name_mid
           -c:a libfdk_aac -b:a 128k  -c:v libx264 -b:v 512K -f flv rtmp://localhost/hls/$name_hi  2>>/tmp/ffmpeg.log;

    this is the output :

       ffmpeg version N-63519-g61917a1 Copyright (c) 2000-2014 the FFmpeg developers
         built on May 28 2014 18:06:42 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
         configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-x11grab --enable-libvpx --enable-libmp3lame --enable-librtmp --enable-libspeex --enable-libfdk_aac
         libavutil      52. 87.100 / 52. 87.100
         libavcodec     55. 65.100 / 55. 65.100
         libavformat    55. 41.100 / 55. 41.100
         libavdevice    55. 13.101 / 55. 13.101
         libavfilter     4.  5.100 /  4.  5.100
         libswscale      2.  6.100 /  2.  6.100
         libswresample   0. 19.100 /  0. 19.100
         libpostproc    52.  3.100 / 52.  3.100
       Metadata:
         Server                NGINX RTMP (github.com/arut/nginx-rtmp-module)
         width                 1280.00
         height                720.00
         displayWidth          1280.00
         displayHeight         720.00
         duration              0.00
         framerate             25.00
         fps                   25.00
         videodatarate         390.00
         videocodecid          0.00
         audiodatarate         27.00
         audiocodecid          11.00
       Input #0, flv, from 'rtmp://localhost/src/test':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
         Duration: 00:00:00.00, start: 0.080000, bitrate: N/A
           Stream #0:0: Video: h264 (High), yuv420p, 1280x720, 399 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
           Stream #0:1: Audio: speex, 16000 Hz, mono, s16, 27 kb/s
       [libx264 @ 0x5260380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
       [libx264 @ 0x5260380] profile High, level 3.1
       [libx264 @ 0x5260380] 264 - core 142 r2431 f23da7c - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=24 lookahead_threads=4 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=128 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
       [libx264 @ 0x525a920] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
       Output #0, flv, to 'rtmp://localhost/hls/test_low':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
           Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720, q=-1--1, 128 kb/s, 25 fps, 90k tbn, 25 tbc
           Metadata:
             encoder         : Lavc55.65.100 libx264
           Stream #0:1: Audio: aac (libfdk_aac), 16000 Hz, mono, s16, 32 kb/s
           Metadata:
             encoder         : Lavc55.65.100 libfdk_aac
       Output #1, flv, to 'rtmp://localhost/hls/test_mid':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
           Stream #1:0: Video: h264, yuv420p, 1280x720, q=-1--1, 256 kb/s, 25 fps, 90k tbn, 25 tbc
           Metadata:
             encoder         : Lavc55.65.100 libx264
           Stream #1:1: Audio: aac, 16000 Hz, mono, s16
           Metadata:
             encoder         : Lavc55.65.100 libfdk_aac
       Output #2, flv, to 'rtmp://localhost/hls/test_hi':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
           Stream #2:0: Video: h264, yuv420p, 1280x720, q=-1--1, 25 fps, 90k tbn, 25 tbc
           Metadata:
             encoder         : Lavc55.65.100 libx264
           Stream #2:1: Audio: aac, 16000 Hz, mono, s16
           Metadata:
             encoder         : Lavc55.65.100 libfdk_aac
       Stream mapping:
         Stream #0:0 -> #0:0 (h264 -> libx264)
         Stream #0:1 -> #0:1 (libspeex -> libfdk_aac)
         Stream #0:0 -> #1:0 (h264 -> libx264)
         Stream #0:1 -> #1:1 (libspeex -> libfdk_aac)
         Stream #0:0 -> #2:0 (h264 -> libx264)
         Stream #0:1 -> #2:1 (libspeex -> libfdk_aac)
       Error while opening encoder for output stream #1:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    I hope you can help me and sorry for my bad english.

    Greetz
    Kevin

  • nginx RTMP to HLS : FFMPG error when trying multiple bitrate output [on hold]

    28 mai 2014, par user3685074

    I’m currently trying to convert my RTMP Livestream into a HLS with 3 quality-settings.

    I followed this guide

    I’ve compiled my own FFMPEG and it’s working if I just convert 1 file.
    It seems libx264 isn’t able to do multiple encodings at the same time ?

    I’m using these command :

           exec /usr/local/bin/ffmpeg -i rtmp://localhost/src/$name
           -c:a libfdk_aac -b:a 32k   -c:v libx264 -b:v 128K -f flv rtmp://localhost/hls/$name_low
           -c:a libfdk_aac -b:a 64k   -c:v libx264 -b:v 256K -f flv rtmp://localhost/hls/$name_mid
           -c:a libfdk_aac -b:a 128k  -c:v libx264 -b:v 512K -f flv rtmp://localhost/hls/$name_hi  2>>/tmp/ffmpeg.log;

    this is the output :

       ffmpeg version N-63519-g61917a1 Copyright (c) 2000-2014 the FFmpeg developers
         built on May 28 2014 18:06:42 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
         configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-x11grab --enable-libvpx --enable-libmp3lame --enable-librtmp --enable-libspeex --enable-libfdk_aac
         libavutil      52. 87.100 / 52. 87.100
         libavcodec     55. 65.100 / 55. 65.100
         libavformat    55. 41.100 / 55. 41.100
         libavdevice    55. 13.101 / 55. 13.101
         libavfilter     4.  5.100 /  4.  5.100
         libswscale      2.  6.100 /  2.  6.100
         libswresample   0. 19.100 /  0. 19.100
         libpostproc    52.  3.100 / 52.  3.100
       Metadata:
         Server                NGINX RTMP (github.com/arut/nginx-rtmp-module)
         width                 1280.00
         height                720.00
         displayWidth          1280.00
         displayHeight         720.00
         duration              0.00
         framerate             25.00
         fps                   25.00
         videodatarate         390.00
         videocodecid          0.00
         audiodatarate         27.00
         audiocodecid          11.00
       Input #0, flv, from 'rtmp://localhost/src/test':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
         Duration: 00:00:00.00, start: 0.080000, bitrate: N/A
           Stream #0:0: Video: h264 (High), yuv420p, 1280x720, 399 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
           Stream #0:1: Audio: speex, 16000 Hz, mono, s16, 27 kb/s
       [libx264 @ 0x5260380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
       [libx264 @ 0x5260380] profile High, level 3.1
       [libx264 @ 0x5260380] 264 - core 142 r2431 f23da7c - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=24 lookahead_threads=4 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=128 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
       [libx264 @ 0x525a920] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
       Output #0, flv, to 'rtmp://localhost/hls/test_low':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
           Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720, q=-1--1, 128 kb/s, 25 fps, 90k tbn, 25 tbc
           Metadata:
             encoder         : Lavc55.65.100 libx264
           Stream #0:1: Audio: aac (libfdk_aac), 16000 Hz, mono, s16, 32 kb/s
           Metadata:
             encoder         : Lavc55.65.100 libfdk_aac
       Output #1, flv, to 'rtmp://localhost/hls/test_mid':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
           Stream #1:0: Video: h264, yuv420p, 1280x720, q=-1--1, 256 kb/s, 25 fps, 90k tbn, 25 tbc
           Metadata:
             encoder         : Lavc55.65.100 libx264
           Stream #1:1: Audio: aac, 16000 Hz, mono, s16
           Metadata:
             encoder         : Lavc55.65.100 libfdk_aac
       Output #2, flv, to 'rtmp://localhost/hls/test_hi':
         Metadata:
           Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
           displayWidth    : 1280
           displayHeight   : 720
           fps             : 25
           profile         :
           level           :
           Stream #2:0: Video: h264, yuv420p, 1280x720, q=-1--1, 25 fps, 90k tbn, 25 tbc
           Metadata:
             encoder         : Lavc55.65.100 libx264
           Stream #2:1: Audio: aac, 16000 Hz, mono, s16
           Metadata:
             encoder         : Lavc55.65.100 libfdk_aac
       Stream mapping:
         Stream #0:0 -> #0:0 (h264 -> libx264)
         Stream #0:1 -> #0:1 (libspeex -> libfdk_aac)
         Stream #0:0 -> #1:0 (h264 -> libx264)
         Stream #0:1 -> #1:1 (libspeex -> libfdk_aac)
         Stream #0:0 -> #2:0 (h264 -> libx264)
         Stream #0:1 -> #2:1 (libspeex -> libfdk_aac)
       Error while opening encoder for output stream #1:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    I hope you can help me and sorry for my bad english.

    Greetz
    Kevin