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Sur d’autres sites (6584)

  • How can I create a dynamic video and stream to Tiktok ? (node.js, canvas, tiktok) [closed]

    18 mai 2022, par Иван Иванов

    I need to create dynamic videos with canvas, node.js, ffmpeg. I need this video stream on tiktok.
Maybe something like that would work for me.
https://github.com/fbsamples/Canvas-Streaming-Example

    


    But I don't understand how to organize a broadcast on tik tok. Perhaps you have a solution or you faced a similar problem. I will be glad if you share a solution. Perhaps you can suggest an alternative.

    


  • ffmpeg add long text in multiline automatically

    30 juillet 2016, par Pranoy C

    I am using ffmpeg to add text to a video. Currently this command works for me :

    ffmpeg -y -i cut.mp4 -vf drawtext="fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf: text='Stack Overflow': fontcolor=white: fontsize=24: box=1: boxcolor=black@0.5: boxborderw=5: x=(w-text_w)/2: y=main_h-(text_h*3)" -codec:a copy output.mp4
    1. If I have a very long text "Stack Overflow is awesome and this is a test of long text", is there a way to automatically make it wrap without me having to insert new line characters in the text ?

    Currently such a text just goes off the screen if I don’t have newline characters.

    1. Is there a way to specify maximum width & height for the text ?

  • Facing libavfilter error while doing cmake for NVIDIA-DALI library on ubuntu version

    27 avril 2019, par vamsi

    — Installed OpenCV 3.4.4 which NVIDIA DALI recommended.
    — below link for NVIDIA DALI reference.
    https://docs.nvidia.com/deeplearning/sdk/dali-developer guide/docs/quickstart.html
    — below link for OpenCV installation :
    https://www.pyimagesearch.com/2018/05/28/ubuntu-18-04-how-to-install-opencv/

    —NVIDIA DALI using below versions :
    -DALI version : 0.10.0dev
    -Found PythonInterp : /usr/bin/python (found version "2.7.15")
    -Found CUDA : /usr (found suitable version "9.1", minimum required is "8.0")
    -Found OpenCV : /usr/local/include ;/usr/local/include/opencv (found suitable version "3.4.4", minimum required is "2.0")

    ---This is the error(No package ’libavfilter’ found) i am getting.

    • Found CUDA : /usr (found suitable version "9.1", minimum required is "8.0")
      - Building WITHOUT nvJPEG
      - Building WITHOUT JpegTurbo
      - Found OpenCV : /usr/local/include ;/usr/local/include/opencv (found suitable version "3.4.4", minimum required is "2.0")
      OpenCV libraries :
      opencv_core ;opencv_imgproc ;opencv_imgcodecs

    • Found PythonLibs : /usr/lib/x86_64-linux-gnu/libpython2.7.so
      - pybind11 v2.2.4
      - Found Protobuf : /usr/lib/x86_64-linux-gnu/libprotobuf.a ;-lpthread (found suitable version "3.0.0", minimum required is "2.0")

    • Enabling TensorFlow TFRecord file format support

    • Found PkgConfig : /usr/bin/pkg-config (found version "0.29.1")
    • Checking for module ’libavformat’
    • Found libavformat, version 58.20.100
      - Checking for module ’libavcodec’
    • Found libavcodec, version 58.35.100
      - Checking for module ’libavfilter’
      No package ’libavfilter’ found

    CMake Error at /usr/share/cmake-3.10/Modules/FindPkgConfig.cmake:415 (message) :
    A required package was not found
    Call Stack (most recent call first) :
    /usr/share/cmake-3.10/Modules/FindPkgConfig.cmake:593 (_pkg_check_modules_internal)
    cmake/Dependencies.cmake:176 (pkg_check_modules)
    CMakeLists.txt:45 (include)
    - Configuring incomplete, errors occurred !
    See also

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