Image rotation with ffmpeg filter

I found a problem at work: when shooting videos, mobile devices shoot through the vertical screen, and the thumbnail when storing files is also the vertical screen But its resolution is in horizontal screen format. Therefore, when making a player, the unprocessed player will find that it is horizontal when playing. The reason is that it is s ...

Posted on Wed, 03 Nov 2021 19:18:40 -0400 by Hi I Am Timbo

Android technology sharing | Android WebRTC opens H264 software codec tutorial

The encoding and decoding of Android WebRTC software is based on openH264 and FFMpeg, but it is not enabled by default during compilation. If you want to enable it, you need to add and modify the code. I will list all the modification steps one by one below. Based on webRTC version:( https://chromium.googlesource.com/external/webrtc/+/branch-he ...

Posted on Wed, 03 Nov 2021 02:59:16 -0400 by classifieds100

FFmpeg calls Android MediaCodec for hard decoding (with source code)

Recommended by Haowen: Author: glumes FFmpeg supports calling platform hardware for decoding after version 3.1, that is, MediaCodec on Android can be called through the C code of FFmpeg. There are corresponding instructions on the official website, and the address is as follows: trac.ffmpeg.org/wiki/HWAcce... As can be seen from the fig ...

Posted on Wed, 20 Oct 2021 15:15:47 -0400 by aktell