如何通過ａｍ 啓動一個電話：
am start -a android.intent.action.CALL -d tel:10010
如何使用alsa_aplay 播放一個本地ｒａｗ文件．
alsa_aplay -C -Dhw:2,0 -r 8000 -c 1 -f S16 -t raw /d.raw
一、如果想通过adb shell播放一个mp3文件，可以通过以下的命令完成：
（1）通过am 播放音频文件
mp3 file located at /storage/sdcard0/Music/hello.mp3
adb shell am start -a "android.intent.action.VIEW" -t "audio/mp3" -d "file:///storage/sdcard0/Music/hello.mp3"
（2）通过am 播放视频文件：
For video playback, you can try this:
adb shell am start -a android.intent.action.VIEW -d "file:///mnt/sdcard/DCIM/Camera/test.3gp" -t "video/*"
gives you a prompt of all capable players that can play this file.
adb shell am start -a android.intent.action.VIEW -d "file:///mnt/sdcard/DCIM/Camera/test.3gp" -t "video/*" -n "com.alensw.PicFolder/.PlayerActivity"
二、也可以通过编译一个可执行文件来在终端运行，以下是一个例子：
http://stackoverflow.com/questions/26298306/android-adb-shell-command-to-play-sound-from-the-command-line/26329605#26329605
up vote0down vote favorite
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I have a set of rooted android devices I can access through adb over tcp/ip.I am trying to identify a specific one by playing a sound from the command line (one of the .ogg files from /system/media/audio).
I know I could probably build an app for this but it feels like an overkill to use an APK, and I'm hoping there is a more native way. I already know how to start intents from the command line.
Things I have tried :
- Investigated using
service call media.player but could not find any useful reference about the syntax. I can see withdumpsys media.player references about AwesomePlayer but couln't get anything going.
- Tried to find a compiled version of "/system/bin/media" from the android source code, as it is missing from the device, but without any luck so far.
- Tried to build a command line java app to call android.media.MediaPlayer with
dalvikvm but my knowledge of Android and java is too limited (class compiled but complained about missing dependencies at runtime)
Any ideas?
androidadb
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editedOct 10 '14 at 12:00
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asked Oct 10 '14 at 11:25
Benjamin
12615
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up vote1down voteaccepted
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After some trial and error, I will answer what is now working for me.
Based on other threads, I found the following java code to be the bare minimum to play some sound through the speaker. The MediaPlayer class seems the only one that will play with no user interaction, as others need a real activity context...
public class Beep { public static void main(String[] a) { MediaPlayer mp = new MediaPlayer(); try { mp.setDataSource("/system/media/audio/alarms/Ticktac.ogg"); mp.prepare(); mp.start(); } catch (IOException e) { Log.w("Beep", "IOException", e); } }
(actual working example is here)
This must then be compiled as a dex file, linked to android.jar,
and can finally be run from the adb shell command line using app_process (not dalvikvm) :
export CLASSPATH=./Beep.dex app_process /system/bin Beep /system/media/audio/ringtones/Beep-beep.ogg
It is not the one-liner I was hoping for but does what I needed...
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androidadb