From 0e6ef1db0475467858174a571d07aa247f8e8fed Mon Sep 17 00:00:00 2001
From: xufulong <839789740@qq.com>
Date: Sat, 30 Oct 2021 00:32:25 +0800
Subject: [PATCH] add multimedia_knowledge.md

---
 README.md                   |  1 +
 doc/JNI_develop_debug.md    |  2 +-
 doc/multimedia_knowledge.md | 37 +++++++++++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 doc/multimedia_knowledge.md

diff --git a/README.md b/README.md
index b5d6d2a..d847468 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 ### [FFmpeg常用命令行](https://github.com/xufuji456/FFmpegAndroid/blob/master/doc/FFmpeg_command_line.md)
 ### [NDK编译脚本](https://github.com/xufuji456/FFmpegAndroid/blob/master/doc/NDK_compile_shell.md)
 ### [JNI开发与调试](https://github.com/xufuji456/FFmpegAndroid/blob/master/doc/JNI_develop_debug.md)
+### [音视频知识汇总](https://github.com/xufuji456/FFmpegAndroid/blob/master/doc/JNI_develop_debug.md)
 
 ### Usage:
 ### (1) Transform video format:
diff --git a/doc/JNI_develop_debug.md b/doc/JNI_develop_debug.md
index 6f4b154..a954d41 100644
--- a/doc/JNI_develop_debug.md
+++ b/doc/JNI_develop_debug.md
@@ -1,5 +1,5 @@
 # 前言
-JNI是Java本地接口。它定义Android从托管代码(以Java或kotlin编程语言编写)到本地代码(C/C++编写)交互编译成字节码的一种方式。</br>
+JNI是Java本地接口，定义Android从应用代码(以Java或kotlin编程语言编写)到本地代码(C/C++编写)交互编译成字节码的一种方式。</br>
 文档[Java Native Interface Specification](https://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/jniTOC.html)</br>
 
 # 相关介绍文章如下：
diff --git a/doc/multimedia_knowledge.md b/doc/multimedia_knowledge.md
new file mode 100644
index 0000000..695b678
--- /dev/null
+++ b/doc/multimedia_knowledge.md
@@ -0,0 +1,37 @@
+# 前言
+音视频多媒体涉及语音信号处理、数字图像处理、信息论、封装协议、编解码、渲染、网络传输、视频特效、音频特效等等。在特定场景，</br>
+还会结合AI、机器学习ML、计算机视觉CV、自然语言理解NLP。比如AI智能编码，抽取视频帧用计算机视觉做人脸识别，用NLP做语音理解。</br>
+
+### 1、音视频基本概念
+[基本概念](https://blog.csdn.net/u011686167/article/details/108314078)
+
+### 2、视频封装格式
+[视频封装](https://blog.csdn.net/u011686167/article/details/108426708)
+
+### 3、音频封装格式
+[音频封装](https://blog.csdn.net/u011686167/article/details/108565360)
+
+### 4、音视频编码
+[编码器介绍](https://blog.csdn.net/u011686167/article/details/108590762)
+
+### 5、音视频解码
+[解码解码器介绍](https://blog.csdn.net/u011686167/article/details/108743947)
+
+### 6、音效(均衡器、混响、重低音)
+[基本音效](https://blog.csdn.net/u011686167/article/details/109191399)
+
+### 7、杜比音效AC3与AC4
+[杜比音效](https://blog.csdn.net/u011686167/article/details/113576628)
+
+### 8、杜比视觉Dolby-Vision与HDR
+[杜比视觉](https://blog.csdn.net/u011686167/article/details/113624068)
+
+### 9、Matroska封装格式
+[Matroska封装格式上](https://blog.csdn.net/u011686167/article/details/113791392)
+[Matroska封装格式下](https://blog.csdn.net/u011686167/article/details/113796271)
+
+### 10、新一代视频AV1编码器
+[AV1编码器](https://blog.csdn.net/u011686167/article/details/113806322)
+
+### 11、Android图像渲染框架
+[Android图像渲染](https://blog.csdn.net/u011686167/article/details/118035545)
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