opkcampaign.blogg.se - Install ffmpeg python

Take a look at each of the links in the Additional Resources section at the end of this README. This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio.Īs usual, take a look at the examples ( Audio/video pipeline in particular).

video operators can be used to reference the audio/video portions of a stream so that they can be processed separately and then re-combined later in the pipeline. Some ffmpeg filters drop audio streams, and care must be taken to preserve the audio in the final output. Make sure you ran pip install ffmpeg-python and not pip install ffmpeg or pip install python-ffmpeg. When in doubt, refer to the existing filters, examples, and/or the official ffmpeg documentation.

And finally, ffmpeg configured and complied with -enable-cuda-nvcc option.filter( 'crop ', 'in_w-2*10 ', 'in_h-2*20 ').

In short, to enable support for GPU-assisted encoding with an NVIDIA GPU for ffmpeg, you need: Please see NVIDIA documentations and ffmpeg wiki page for further information. You learned how to install FFmpeg with NVIDIA GPU acceleration hardware support on Debian or Ubuntu Linux to speed up encoding with the ffmpeg command. Make sure you read the following man pages using the man command: Mine is a consumer-grade GPU, but no doubt data center or professional-grade NVIDIA GPU gives even better performance.

Time ~/ffmpeg/ffmpeg -hwaccel cuda -y -i /tmp/input.mkv /tmp/out.mp4 Time command outputs with CPU used: realđm40.678sĪlso note down the speed: frame= 7320 fps= 73 q=-1.0 Lsize= 58306kB time=00:02:02.03 bitrate=3914.0kbits/s speed=1.22xĪnd now same file with NVIDIA GPU acceleration (note the path, I am calling the compiled version): Time /bin/ffmpeg -y -i /tmp/input.mkv /tmp/out.mp4 In this example, I am converting input.mkv to out.mp4 as follows without using GPU acceleration: Related: Top 7 Linux GPU Monitoring and Diagnostic Commands Line Tools Result