caijimin/intel-ffmpeg-ivtal

These are recipes and containers with FFmpeg transcoding optimized by Intel® iVTAL (Intel Video Transcode Acceleration Library).

FFmpeg ([***] is a free software framework that is used for transcoding multimedia files including audio and video. Many large to small software vendors make use of FFmpeg for their multimedia content creation and delivery.

iVTAL is a dynamic library which provides high quality and throughput transcoding solution on Xeon platform. iVTAL is adapted to FFmpeg and encoders like x264/x265. The benefits of iVTAL are listed as follows (comparing with official ffmpeg + x264/x265):

1. Improve video quality (mode1)

• Within 5% speed sacrifice, 4.6% VMAF score improved with the same bandwidth in average.

2. Improve throughput with the similar quality (mode2)

• Within the similar video quality, 50% speed up in average, decreasing transcoding hardware TCO.

3. Improve both video quality and throughput (mode3)

• 20% speed up and 2.5% BD-Rate decreased(lower is better).

4. Customized algorithms combination for special needs (mode4)

• Cover corner cases for customer’s user scenarios.

You can get the image from docker pull caijimin/intel-ffmpeg-ivtal:latest.

• Start the container with auto run scripts

$ sudo docker run -it -v /mount_folder:/mount_folder caijimin/intel-ffmpeg-ivtal:latest

It will run benchmark script automatically and the performance data is written to /mount_folder/performance.txt.

• Start the container with bash as the entry point.

$ sudo docker run -it -v /mount_folder:/mount_folder caijimin/intel-ffmpeg-ivtal:latest bash

Then in the container, you can enter /home/user/scripts directory, source /home/user/ivtal/bin/ivtal.env to set running environment and execute ./media_transcode.sh to run the benchmark. media_transcode.sh will transcode the videos using official FFmpeg and iVTAL optimized FFmpeg respectively.

The performance data is written to /mount_folder/performance.txt, and the contents are like

Video transcoding optimization with Intel iVTAL

Official ffmpeg+x264
video, fps
crowd_run_2160p50.mp4, 34
CSGO_1080p60.mp4, 76
big_bunk_bunny_720p24.mp4, 179

Intel iVTAL optimized ffmpeg+x264
video, fps
crowd_run_2160p50.mp4, 46
CSGO_1080p60.mp4, 119
big_bunk_bunny_720p24.mp4, 266

Software Configuration Parameters: