With the advent of 5G, the short video industry is becoming more and more popular. Audio and video technology has also become a hot spot, and I am going to write an audio and video series:
(1) Audio and video: decoding H264 file process rendering and getting the decoded source data YUV complete demo]
(2) Audio and video: MediaCodec encoding desktop information complete demo Further understand H264
(3) Audio and video: analyze H264 SPS to further understand H264
Well, let’s start with the article: (1) Audio and video: decoding H264 file process rendering and getting the decoded source data YUV complete demo
overview
本博文讲解H264文件通过MediaCodec硬解码流程，解码后的处理：渲染和获取原始数据YUV。获取到的原始数据用7YUV工具查看出现绿色和紫色条的原因以及处理方式。
General flowchart: 
green and purple bars appear between frames:
MediaCodec decoding process
数据进入MediaCodec和出MediaCodec流程：
dequeueinputBuffer (obtain a buffer that can be filled with encoded data from the Input cache) —> queueInputBuffer (send the buffer that has been filled with data back to the codec, and notify the dsp to decode) —> dequeueO