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  • How to paint on a video frame by frame and save it using flutter ?

    20 septembre 2022, par Maxence Bourdin

    The goal is to analyse a video frame by frame and apply a painting on each of those frames. Then save the video and be able to play it.

    


    Do you know if such a thing is possible in flutter ? I've heard about ffmpeg package but I'm not too sure if that's possible with it.

    


  • Read and Save rtsp stream using FFMPEG using python with less memory size

    25 août 2022, par Vishak Raj

    I am trying to read a rtsp stream and save in a file, for that I am using the ffmpeg in python

    


    import ffmpeg

stream = ffmpeg.input(rtsp_link, t=10)
print(stream)

file = stream.output("test.mp4")
testfile = file.run()#capture_stdout=True, capture_stderr=True


    


    but this save the video file in high space, for 10 second video, the file occupies around 3 Mb, how to reduce the file size

    


    thanks

    


  • FFMPEG : How to save the effects (blur, adding image , ...) on the input video instead of creating a one ?

    9 juillet 2016, par Drupalist

    I need to save the effects on the current video instead of creating a one. For example this code

    ffmpeg -i input.mp4 -i logo.png -filter_complex "[1:v][0:v]scale2ref=(505/384)*ih/8:ih/8[wm][base];[wm]setsar=1[wmsar];[base][wmsar]overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4

    pastes an image on a video, but I need the image to be pasted to input.mp4 not output.mp4.

    I tried

    ffmpeg -i input.mp4 -i logo.png -filter_complex "[1:v][0:v]scale2ref=(505/384)*ih/8:ih/8[wm][base];[wm]setsar=1[wmsar];[base][wmsar]overlay=10:10" -pix_fmt yuv420p -c:a

    but it didn’t work.

    Thanks in advance.

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