-nam
-===
+================================================================================
+Stagefright Plugins for Android
+================================================================================
-Enhance the Android multimedia framework providing additional Plugins for user interaction
\ No newline at end of file
+1. Enhance the Android multimedia framework providing additional Plugins for
+ user interaction
+2. FFmpeg provides demuxers and av codecs;
+3. NamExtractor is a extractor plugin, it would be loaded by Stagefright when
+ Stagefright started. NamExtractor will load FFmpegExtractor.FFmpegExtractor
+ is the reference to "ffmpeg/ffplay" to achieve.
+4. libstagefright_soft_ffmpegvdec plugin is video decoder
+5. libstagefright_soft_ffmpegadec plugin is audio decoder
+
+================================================================================
+Why is named nam[NamExtractor]?
+================================================================================
+
+Namtso, or Lake Nam, is one of the three holy lakes in Tibet Autonomous Region
+and should not be missed by any traveler to Tibet. In Tibetan, Namtso means
+"Heavenly Lake." It is famous for its high altitude and imposing scenery.
+
+I used to travel there in 2011 Sep.
+
+================================================================================
+Requirements
+================================================================================
+
+CyanogenMod 9.x (Ice Cream Sandwich)
+http://wiki.cyanogenmod.com/wiki/Galaxy_Nexus_(GSM):_Compile_CyanogenMod_(Linux)
+
+FFMPEG-1.0 release
+http://ffmpeg.org
+ref: git://android.git.linaro.org/platform/external/ffmpeg.git
+
+================================================================================
+How to build
+================================================================================
+
+1. Get the Source
+ clone cm-9.1.0 source from CyanogenMod git:
+ repo init -u git://github.com/CyanogenMod/android.git -b cm-9.1.0
+ plz ref: http://wiki.cyanogenmod.com/wiki/Galaxy_Nexus_(GSM):_Compile_CyanogenMod_(Linux)
+
+ clone my sources from the omxcodec{github} git!
+ in your "android/external" folder, run:
+ stagefright-plugins:
+ git clone git@github.com:omxcodec/stagefright-plugins.git stagefright-plugins
+ ffmpeg:
+ git clone git@github.com:omxcodec/android_external_ffmpeg.git ffmpeg -b omxcodec-1.0
+
+ in your "android/external" folder, run:
+ cp stagefright-plugins/repo/local_manifest.xml ../.repo
+ cd .. // go to android folder
+ repo sync // sync "frameworks_base" code again!
+
+ "repo sync" sync "frameworks_base" code again! of course, you can merge my
+ android_external_ffmpeg code instread of "repo sync" frameworks_base. once you do,
+ so you should pay attention to the "USES_NAM" flag, it is only in the
+ "android/frameworks/base" directory
+
+2. Compile
+ add USES_NAM flag to COMMON_GLOBAL_CFLAGS in android build system
+ vi vendor/samsung/maguro/BoardConfigVendor.mk and add these lines to it
+ USES_NAM := true
+ ifdef USES_NAM
+ COMMON_GLOBAL_CFLAGS += -DUSES_NAM
+ endif
+
+ ffmpeg:
+ cd android/external/ffmpeg
+ mm ffmpeg // NOT "mm", plz FIXME!
+
+ cd android/external/stagefright-plugins
+ mm
+
+3. Install
+ adb root
+ adb remount
+ adb sync // sync your android build system to your phone or pad
+ reboot // reboot your phone or pad
+
+4. Run
+ get test media files:
+ wget http://movies.apple.com/media/us/ipad/2012/tv-spots/apple-ipad-this_good-us-20120307_848x480.mov
+ wget http://movies.apple.com/media/us/ipad/2012/80ba527a-1a34-4f70-aae8-14f87ab76eea/tours/apple-ipad-feature-us-20120307_848x480.mp4
+
+ let us suppose your media files locate at "/sdcard/Movies/" folder.
+ one console window, you should run:
+ adb logcat
+ and other cosole window, you should run:
+ test NamExtractor and FFmpegExtractor plugins:
+ adb shell am start -a android.intent.action.VIEW -d file:///mnt/sdcard/Movies/apple-ipad-this_good-us-20120307_848x480.mov -t video/*
+ adb shell am start -a android.intent.action.VIEW -d file:///mnt/sdcard/Movies/apple-ipad-feature-us-20120307_848x480.mp4 -t video/*
+ test SoftFFmpegVideo decoder plugin:
+ cd android/external/stagefright-plugins/tools folder, run:
+ adb root
+ ./install // install my scripts
+ adb root && adb shell set-vdec-sw1 // let omxcodec choose software decoder
+ adb shell am start -a android.intent.action.VIEW -d file:///mnt/sdcard/Movies/apple-ipad-this_good-us-20120307_848x480.mov -t video/*
+ adb shell am start -a android.intent.action.VIEW -d file:///mnt/sdcard/Movies/apple-ipad-feature-us-20120307_848x480.mp4 -t video/*
+
+ run it and enjoy!
+
+================================================================================
+Features
+================================================================================
+Input formats:
+ MP4 / MOV / 3GP
+ TS / PS
+ AVI
+ ASF / WMV / WMA
+ Matroska (MKV)
+ Real(RM,RMVB)
+ WAV
+ FLV(H.264+AAC)
+
+Video formats:
+ MPEG-1/2
+ MPEG-4
+ H.263
+ H.264 / MPEG-4 AVC
+ WMV 1/2
+ WMV 3 / WMV-9 / VC-1
+ Real Video
+
+Audio formats:
+ MPEG Layer 1/2
+ MP3 - MPEG Layer 3
+ AAC - MPEG-4 part3
+ AC3 - A/52 (Dolby Digital)
+ WMA 1/2
+ WMA 3
+ Real Audio
+ AMR (3GPP)
+ APE
+ DTS
+ FLAC
+
+================================================================================
+Known issues
+================================================================================
+1. some .mov movies do not av resync when seeking
+2. some video stream ended while seeking
+3. more video and audio codecs codec to be integrated
+4. more formats to be integrated
+
+If you need help with the library, or just want to discuss nam related issues,
+you can contact me: Michael Chen (omxcodec@gmail.com)
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