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1. #Using ffmpeg windows how to#
2. #Using ffmpeg windows full#
3. #Using ffmpeg windows zip#
4. #Using ffmpeg windows tv#
5. #Using ffmpeg windows download#

go to Control Panel->System->Edit system environment variables and click on Environment variables.

#Using ffmpeg windows zip#

create directory c:\\ffmpeg and extract zip content into it,.

#Using ffmpeg windows download#

#Using ffmpeg windows tv#

(for businessmen) to watch TV football match while playing video game.(for housewives) to remotely monitor kitchen activities and see if soup cooking transformed into volcano.(for fresh parents) to monitor baby's cradle and listen if baby started to complain.Well I have an idea for you: turn it into live surveillance device Have you ever wondered if you can put it back in action to do something more useful? It becomes more and more common that there is at least one desktop computer or lap top at your home with sole purpose to collect dust. Among variety of features, FFmpeg can capture video and audio from your computer's camera and stream them over network to some other remote machine. FFmpeg is one of leading frameworks for multimedia processing. For more on the course, click the course image below, or click here. These techniques will soon make their way into my course on computing and using video quality metrics depicted immediately below. It took 13.5 seconds to compute all metrics on my HP Zbook notebook.įor those who care about these things, I checked and the VMAF scores computed via the arithmetic mean were identical to those produced by the Moscow State University Video Quality Measurement Tool, which is my go-to tool for metric computations.

You see the computed metrics and the frame scores for the first two frames.

#Using ffmpeg windows full#

Here’s what the log file looked like (click the figure to see it at full resolution). So, it computed VMAF using the default model, as well as PSRN, SSIM, and MS_SSIM, and computed the scores via the harmonic mean, which does a better job weighing variations in the stream than the simple mean. This string incorporates many of these options and worked for me.įfmpeg.exe -i output.mp4 -i input.mp4 -lavfi libvmaf="model_path=vmaf_v0.6.1.pkl:log_fmt=xml:psnr=1:ssim=1:log_path=harm_mean.txt:pool=harmonic_mean" -f null. Pool – Set the pool method to be used for computing vmaf. N_threads – Set number of threads to be used when computing vmaf. Ms_ssim – Enables computing ms_ssim along with vmaf. Ssim – Enables computing ssim along with vmaf. Psnr – Enables computing psnr along with vmaf. Phone_model – Invokes the phone model which will generate VMAF scores higher than in the regular model, which is more suitable for laptop, TV, etc. Log_fmt – Set the format of the log file (xml or json). Log_path – Set the file path to be used to store logs. Model_path – Set the model path which is to be used for SVM. You can find all the libvmaf options here. f null - – Tells FFmpeg to output a null file Other Options report – saves the log file (not essential) :log_path=VMAF.txt – path and name of the file to contain scores "model_path=vmaf_v0.6.1.pkl – path to VMAF model (this is the default model) i output.mp4 -i input.mp4 – list encoded file first, then source The shortest command string that worked was this:įfmpeg.exe -i output.mp4 -i input.mp4 -lavfi libvmaf="model_path=vmaf_v0.6.1.pkl:log_path=VMAF.txt" -report -f null.

#Using ffmpeg windows how to#

What I’ll do in this post is to document how to run VMAF using the compiled version of FFmpeg, which is pretty straightforward. Here’s the links to Abi’s FFmpeg version (again): download So, a huge thanks to Abi for her hard work and gracious contribution. Abi compiled the necessary version of FFmpeg, which you can download here, and documented how to compile the codec yourself should you want to do so in the future. So, I reached out to friend and colleague Abharana (Abi) Bhat, Ph.D., who is the Video Architect, Video Quality at DAZN, the London-based OTT subscription sports streaming service. I know it’s been possible for quite a while now but since I’m not a coder I can’t compile the version of FFmpeg necessary to make it work. One of the gaps in my online course on Video Quality Metrics and my upcoming course on metrics at Streaming Media West was the ability to compute VMAF using FFmpeg on Wind. I’ll leave this post up for historical purposes, but the newer post is the one that you should use. To learn how to do this, check out the blog post Lesson of the Week: Computing VMAF with FFmpeg on Windows. Now the Zeranoe version does include VMAF support all you need to do is download the models and run the correct command strings. Author’s note: When this post was written, the Zeranoe FFmpeg Windows download didn’t include VMAF, so you had to either download this version or compile your own.