OK, the last step here is the close, and then we must write a for loop before the close. OK, we do an infinite loop, OK, here we need to read a frame, then write, read a frame, and write. OK, this is that we call a function called a v, read, frame, Well, every time we read a needle, we need two parameters. The first one is the context, and the second one is an a v packet. OK, let's review the first context, what it is when we read it, and what it is. As far as this program is concerned, remember that we started writing a file and opened it, An open file is stored in the iC, which is easy to read. The second parameter of the iC is a packet packet. You can imagine what the function actually reads. It reads a compressed frame of video, which is the compressed format of a picture. It may be p-true, key frame, or bi zhen, At this time, we need to use a package to store, and we can use the simplest p a c k e t, p k t
Suitable for people
Students who have some C or C++foundation, want to improve their practical ability, want to learn ffmpeg and qt, and want to learn live broadcast technology
You will learn
This course is based on the popular live broadcast technology FFMpeg3.3 audio and video processing framework, and widely used c++cross platform
Course Introduction
This course explains the audio and video processing framework based on the live broadcast technology FFMpeg3.3, and the widely used C++cross platform QT5 library (mainly used as the interface). A complete screen recorder project developed, including desktop recording (based on QT (cross platform), directx (efficient)), (based on QT5) microphone recording, audio and video h264 encoding, MP4 packaging. QT rounded border interface.
The development tool is based on vs2013, but also applies to higher versions of vs.
Lecturer: [Xia Caojun]
Code download method
The course provides all source code and project files, which can be downloaded from the learning materials on the course introduction page
Interface
Course outline
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