《Pro Android Graphics》讀書筆記之第二節
Android Digital Video: Formats, Concepts and Optimization
Android Digital Video Formats: MPEG4 H.264 and WebM VP8
H.263 支持老顯示器MPEG4 SP
supported for commercial video（支持商業視頻）
3GP
Google在2.3.3中增加對WebM的支持
video Stream 4.0以後版本號
recommend using MPEG-4 H.264 AVC
WebM 直播流
Android VideoView and MediaPlayer Class: Video Players
MediaPlayer：在包android.media中。
VideoView：在包android.widget中，direct subclass of the Android SurfaceView（詳細介紹請參考書）。
The Foundation of Digital Video: Motion, Frames and FPS
pixels, resolution, aspect ratios, color depth, alpha channels, pixel blending, image compositing, and even data footprint
計算影片大小：每幀的大小＊幀率＊時間
Digital Video Conventions: Bit Rates, Streams, SD, and HD
Internet 2.0 IP infrastructure is 1536 kbits/second (1.5 MBPS, or megabits per second)。
A faster data pipe is at least 2048 kbits/s, or 2 mbits/s or 2 MBPS, and video compressed at this higher bit rate exhibits a higher visual quality level. More modern 4G networks claim to be between 3 and 6 mbits/s（3G networks deliver between 600 kbits/s and 1.5 mbits/s, so, on average, these will be 1.5 mbits/s and classified as a medium data pipe）。
Digital Video Files for Android: Resolution Density Targets
DPI：density pixel imagery
For digital video, this also includes different target bit rates, so that you can try to fit all of the different device screen densities and the different processing power capabilities of single-core through quad-core CPU product offerings。
Optimizing Digital Video: Codecs and Compression
decode codec
professional solution（專業解決方式（不到1000刀））
EditShare Lightworks 11（open source）
Creating Your Video Assets: Using Terragen 3 3D Software
Planetside
Creating Uncompressed Video: Using VirtualDub Software
VirtualDub Video（須要花費大量時間）
Compressing Your Video Assets: Using Sorenson Squeeze
從AVI到MP4（H264）（文中樣例：壓縮比達到120:1）
Installing a Video Asset in Android: Using the Raw Folder
Referencing the Video Asset in Your Android Application
Uri splashScreenUri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.pag480portrait);
（VideoView）splashScreen.setVideoURI(splashScreenUri);
MediaController splashScreenMediaController = new MediaController(this); 《Pro Android Graphics》讀書筆記之第二節