Optimize multi-pass multi-bitrates encoding

This article will be enriched in the next weeks and months to include even more advanced examples and use cases that can be solved with a smart use of FFmpeg. This fifth article wants to add more advanced use cases and usages to what was presented and discussed in the previous 4 parts. Not for everyone but very useful when you want the control and performance of x264 and all the input and output options of FFmpeg. Last but not least, FFmpeg introduced the possibility to control directly the parameters of x264lib using the -x264opts command. Read point 2 below to know about alternatives. Take a look at the updates of PART II to have more informations about new syntax and obsolete parameters.Īnother important change is realated to libfaac library which is now external. In case of multiple AV tracks there also an optiona parameter to specify the track number. The most important changes are around parameters like -vcodec, -b, -ab, -vframes, etc… to avoid misunderstandings now a stream_identifier has been added to specify if the parameter is related to the audio or video track. Above you find the Index of the articles. So this is also a good opportunity for you to refresh your knowledge about FFmpeg and the current state-of-the-art. In this year a lot of things happened on the FFmpeg side (and not only), so I have corrected a lot of small errors and changes in syntax of commonly used commands. PART IV – FFmpeg for streaming (revised 0)Īfter almost one year from the starting post of this series dedicated to FFmpeg I have found some time to catch-up with this topic and revise/refresh the series. In that project Samuel is wrapping FFMPEG’s underlying libraries (avcodec, avformat, and so on) using his equally amazing JavaCPP project to expose their functionality to any Java application.PART II – Parameters and recipes (revised 0) Recently, I came across Samuel Audet’s amazing open source JavaCV project. This is fine but it doesn’t give hooks into the actual video frames before they are encoded and sent over the network. For those of you interested, the litter in my GitHub account documents various previous attempts.Īs far as I can tell, most folks that are streaming live video from Android are relying upon the video captured by the MediaRecorder and underlying classes and doing a bit of trickery with the file either while it sent to the server or on the server for distribution. For the last little or should I say, long while I have been working on wrangling a solution for live streaming from Android that is both decent quality and extensible.

Android ffmpeg rtsp