vault backup: 2022-09-26 18:39:43

Affected files:
.obsidian/workspace
03. 資料收集/HTTP Server/Nginx.md
03. 資料收集/Hobby/RC.md
03. 資料收集/Hobby/模型/Traxxas Sledge.md
03. 資料收集/Hobby/模型/舊化作例.md
03. 資料收集/Hobby/軍武/虎式.md
03. 資料收集/Programming/COM/20210726 - COM Interface.md
03. 資料收集/Programming/DB/MySQL.md
03. 資料收集/Programming/DB/sqlite.md
03. 資料收集/Programming/Design Pattern.md
03. 資料收集/Programming/FFMPEG/00. Introduction.md
03. 資料收集/Programming/FFMPEG/01. Setup.md
03. 資料收集/Programming/FFMpeg.md
03. 資料收集/Programming/Flask.md
03. 資料收集/Programming/Media Foundation/20210604 - Windows media foundation.md
03. 資料收集/Programming/OpenCV.md
03. 資料收集/Programming/OpenGL.md
03. 資料收集/Programming/Python/argparse.ArgumentParser.md
03. 資料收集/Programming/Python/decorator.md
03. 資料收集/Programming/Python/logging.md
03. 資料收集/Programming/Python/opencv.md
03. 資料收集/Programming/Python/subprocess.md
03. 資料收集/Programming/Python/threading.md
03. 資料收集/Programming/Python/tkinter.md
03. 資料收集/Programming/Python/檢測工具.md
03. 資料收集/Programming/QT/Dropdown button.md
03. 資料收集/Programming/QT/QVariant.md
03. 資料收集/Programming/QT/Qt.md
03. 資料收集/Programming/Qt.md
03. 資料收集/Programming/UML.md
03. 資料收集/Programming/演算法.md
03. 資料收集/架站/03. Trojan.md
03. 資料收集/架站/Gitea.md
03. 資料收集/架站/HTTP Server/Apache.md
03. 資料收集/架站/HTTP Server/Nginx/Reverse Proxy(Layer4).md
03. 資料收集/架站/Pelican blog.md
03. 資料收集/架站/Proxmox VE.md
03. 資料收集/架站/SWAG Reverse proxy.md
03. 資料收集/架站/Storj.md
03. 資料收集/架站/Trojan.md
03. 資料收集/科技/802.11.md
03. 資料收集/科技/HDR Sensor.md
03. 資料收集/科技/量子電腦.md
03. 資料收集/科技/鋰電池.md
03. 資料收集/軟體工具/IPFS.md
03. 資料收集/軟體工具/MkDocs.md
03. 資料收集/軟體工具/Obsidian.md
03. 資料收集/軟體工具/docker.md
03. 資料收集/軟體工具/git/apply.md
03. 資料收集/軟體工具/git/submodule.md

03. 資料收集/Programming/FFMPEG/00. Introduction.md

@@ -0,0 +1,17 @@
+- [FFmpeg](https://www.ffmpeg.org/)
+- Open source
+- For handling multimedia files and streams
+- GPL/LGPS license
+- Inspired by MPEG(Moving Picture Experts Group), FF means "Fast Foward"
+- Libraries
+    - libavcodec: Contain all the encoders and decoders
+    - libavformat: Muxers and demuxers
+    - libavfilter: Filters that you can use on your video and audio according to your requirements
+    - libavdevice: Input and output devices
+    - libavutil
+    - libswscale
+    - libswresample
+- Tools
+    - ffmpeg: Main transcoding engine
+    - ffplay: Minimum tool to play a video or audio
+    - ffprobe: For inspecting medias and extract valuable information

03. 資料收集/Programming/FFMPEG/01. Setup.md

@@ -0,0 +1,30 @@
+FFmpeg doesn't support any official builds for any operation systems. You can build the codes from source, or use the prebuilt packages.
+
+## From source
+Get source code from [snapshot](https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2) or git(`git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg`).
+
+## From prebuilt packages
+### MacOS
+Use homebrew to install FFMPEG package
+```
+brew install ffmpeg
+```
+
+### Ubuntu
+```
+sudo apt update ;\
+sudo apt install ffmpeg
+```
+
+### Windows
+Goto https://www.ffmpeg.org/download.html, and
+![[Pasted image 20220607105807.png]]
+
+And then browser jumps to https://www.gyan.dev/ffmpeg/builds/, click [release build](https://www.gyan.dev/ffmpeg/builds/#release-builds), download **release-full**.
+![[Pasted image 20220607110211.png]]
+
+Unzip the file, then put the folder to anywhere you like, e.g. `C:\libs`,  so the full path of ffmpeg packages should looks like: `C:\libs\ffmpeg-5.0.1-full_build`
+
+#### Add to system variable
+Add the path of bin of ffmpeg packages to `PATH` system variable.
+![[Pasted image 20220607110949.png]]