![]() You will need to experiment to see what works best for you. It's inverse, so a higher number is less noise, and 1 is the lowest number and therefore the most noise. This bitstream filter can accept a value to increase or decrease the amount of noise. ffmpeg -i input.mp4 -codec:v huffyuv -bsf:v noise -codec:a copy noise.mkvĪ bitstream filter operates on the encoded stream data, and performsīitstream level modifications without performing decoding. If you just want black and white you can add the hue filter.Īdding random visual noise and errors to an existing video Using the noise bitstream filter: i /dev/urandom -ar 48000 -ac 2 -f s16le -i /dev/urandom -codec:a copy \ This is a small screeenshot, but of course the video will not be a static image:įfmpeg -f rawvideo -video_size 1280x720 -pixel_format yuv420p -framerate 25 \ Using /dev/urandomĪlthough I recommend using the geq filter you can also use /dev/urandom to generate video and audio noise (Windows users will have to use the geq filter as shown above). Note that this will create black and white video noise. The geq (video "generic equation") filter (with nullsrc as its "blank canvas") can create video noise, and the aevalsrc filter can create white noise audio:įfmpeg -f lavfi -i nullsrc=s=1280x720 -filter_complex \ Create video and audio noise, artifacts, and errors with ffmpeg Noise Using filters ![]()
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