[FFmpeg-user] DShow and Crossbar support for device name?

[Roger Pack]

> v[dshow @ 0000000000432180] DirectShow video devices (some may be both video
and
audio devices)
[dshow @ 0000000000432180] Could not enumerate video devices (or none
found).

Do other programs use it OK? What type of device *is* it in dshow
land, I wonder...

On 11/9/15, Andrew Blake <andrewfblake at gmail.com> wrote:
> Hi there,
>
> I have a NUUO 7108 - 8 Channel Video Capture Card that I'm trying to stream
> into images using image2 over TCP to an application I've built.
>
> The actual streaming over TCP and splitting video to images is fine with a
> static file or an AVerMedia TV Capture Card using dshow (1CH)... but I'm
> having no luck with this 8 Channel Video Capture card?
>
> I'm assuming that the 8Ch using crossbar? and I don't know how to list the
> device name for crossbar devices to try a pin? any ideas?
>
> Two of my attempts below of about a hundred! any help or guidance would be
> much appreciated,
>
> Anyone else got a NUUO Capture card working with FFMPEG? (using Windows)
>
> Many thanks,
>
> Andrew
>
>
> C:\applications>ffmpeg -list_devices true -f dshow -i
>  dummy
> ffmpeg version N-76041-g0418541 Copyright (c) 2000-2015 the FFmpeg
> developers
>   built with gcc 5.2.0 (GCC)
>   configuration: --enable-gpl --enable-version3 --disable-w32threads
> --enable-av
> isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
> --enab
> le-iconv --enable-libass --enable-libbluray --enable-libbs2b
> --enable-libcaca --
> enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
> --enable-l
> ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
> --enab
> le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp
> --en
> able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
> --ena
> ble-libtwolame --enable-libvidstab --enable-libvo-aacenc
> --enable-libvo-amrwbenc
>  --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
> --enabl
> e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma
> --ena
> ble-decklink --enable-zlib
>   libavutil      55.  4.100 / 55.  4.100
>   libavcodec     57.  6.100 / 57.  6.100
>   libavformat    57.  4.100 / 57.  4.100
>   libavdevice    57.  0.100 / 57.  0.100
>   libavfilter     6. 11.100 /  6. 11.100
>   libswscale      4.  0.100 /  4.  0.100
>   libswresample   2.  0.100 /  2.  0.100
>   libpostproc    54.  0.100 / 54.  0.100
> [dshow @ 0000000000432180] DirectShow video devices (some may be both video
> and
> audio devices)
> [dshow @ 0000000000432180] Could not enumerate video devices (or none
> found).
> [dshow @ 0000000000432180] DirectShow audio devices
> [dshow @ 0000000000432180] Could not enumerate audio only devices (or none
> found
> ).
> dummy: Immediate exit requested
>
>
> C:\applications>ffmpeg -f dshow -show_video_device_di
> alog true -crossbar_video_input_pin_number 0   -i video="PCIe 8CH DVR TVout
> Boar
> d"
> ffmpeg version N-76041-g0418541 Copyright (c) 2000-2015 the FFmpeg
> developers
>   built with gcc 5.2.0 (GCC)
>   configuration: --enable-gpl --enable-version3 --disable-w32threads
> --enable-av
> isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
> --enab
> le-iconv --enable-libass --enable-libbluray --enable-libbs2b
> --enable-libcaca --
> enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
> --enable-l
> ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
> --enab
> le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp
> --en
> able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
> --ena
> ble-libtwolame --enable-libvidstab --enable-libvo-aacenc
> --enable-libvo-amrwbenc
>  --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
> --enabl
> e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma
> --ena
> ble-decklink --enable-zlib
>   libavutil      55.  4.100 / 55.  4.100
>   libavcodec     57.  6.100 / 57.  6.100
>   libavformat    57.  4.100 / 57.  4.100
>   libavdevice    57.  0.100 / 57.  0.100
>   libavfilter     6. 11.100 /  6. 11.100
>   libswscale      4.  0.100 /  4.  0.100
>   libswresample   2.  0.100 /  2.  0.100
>   libpostproc    54.  0.100 / 54.  0.100
> [dshow @ 00000000004a24e0] Could not enumerate video devices (or none
> found).
> video=PCIe 8CH DVR TVout Board: Input/output error
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