Hi there!
I am trying to run the source code"Simple Video" of Unlocking Android in chapter 10. But when i launch this program , it tells me cannot play the video.
Here is the code


Here is the log info:
09-01 07:46:43.306: WARN/InputManagerService(578): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@4371f690
09-01 07:47:01.846: WARN/KeyCharacterMap(715): No keyboard for id 0
09-01 07:47:01.858: WARN/KeyCharacterMap(715): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
09-01 07:47:02.068: VERBOSE/VideoView(725): reset duration to -1 in openVideo
09-01 07:47:02.116: ERROR/PlayerDriver(554): Command PLAYER_SET_DATA_SOURCE completed with an error or info PVMFErrNotSupported
09-01 07:47:02.116: ERROR/MediaPlayer(725): error (1, -4)
09-01 07:47:02.287: ERROR/MediaPlayer(725): Error (1,-4)
09-01 07:47:02.287: DEBUG/VideoView(725): Error: 1,-4
09-01 07:47:02.426: WARN/InputManagerService(578): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@4361f8d0 (uid=10022 pid=715)
09-01 07:47:04.397: WARN/InputManagerService(578): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@437288b8
09-01 07:47:05.367: WARN/KeyCharacterMap(725): No keyboard for id 0
09-01 07:47:05.377: WARN/KeyCharacterMap(725): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
09-01 07:47:05.786: WARN/InputManagerService(578): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@436cd8f8 (uid=10021 pid=725)
09-01 07:47:05.956: WARN/KeyCharacterMap(618): No keyboard for id 0
09-01 07:47:05.966: WARN/KeyCharacterMap(618): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
09-01 07:47:11.318: DEBUG/dalvikvm(715): GC freed 659 objects / 61240 bytes in 306ms
09-01 07:47:11.856: DEBUG/AndroidRuntime(745): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
09-01 07:47:11.866: DEBUG/AndroidRuntime(745): CheckJNI is ON
09-01 07:47:12.206: INFO/jdwp(745): received file descriptor 20 from ADB
09-01 07:47:12.226: DEBUG/AndroidRuntime(745): --- registering native functions ---
09-01 07:47:13.286: INFO/ActivityManager(578): Starting activity: Intent { flags=0x10000000 comp={com.msi.manning.chapter10.SimpleVideo/com.msi.manning.chapter10.SimpleVideo.SimpleVideo} }
09-01 07:47:13.376: DEBUG/AndroidRuntime(745): Shutting down VM
09-01 07:47:13.388: DEBUG/dalvikvm(745): DestroyJavaVM waiting for non-daemon threads to exit
09-01 07:47:13.457: DEBUG/dalvikvm(745): DestroyJavaVM shutting VM down
09-01 07:47:13.457: DEBUG/dalvikvm(745): HeapWorker thread shutting down
09-01 07:47:13.467: DEBUG/dalvikvm(745): HeapWorker thread has shut down
09-01 07:47:13.486: DEBUG/jdwp(745): JDWP shutting down net...
09-01 07:47:13.486: DEBUG/jdwp(745): +++ peer disconnected
09-01 07:47:13.486: INFO/dalvikvm(745): Debugger has detached; object registry had 2 entries
09-01 07:47:13.517: DEBUG/dalvikvm(745): VM cleaning up
09-01 07:47:13.746: DEBUG/dalvikvm(745): LinearAlloc 0x0 used 639228 of 4194304 (15%)
09-01 07:47:13.997: WARN/IInputConnectionWrapper(618): showStatusIcon on inactive InputConnection
09-01 07:47:14.106: VERBOSE/VideoView(715): reset duration to -1 in openVideo
09-01 07:47:14.216: ERROR/PlayerDriver(554): Command PLAYER_SET_DATA_SOURCE completed with an error or info PVMFErrNotSupported
09-01 07:47:14.216: ERROR/MediaPlayer(715): error (1, -4)
09-01 07:47:14.286: INFO/ActivityManager(578): Displayed activity com.msi.manning.chapter10.SimpleVideo/.SimpleVideo: 1002 ms
09-01 07:47:14.317: ERROR/MediaPlayer(715): Error (1,-4)
09-01 07:47:14.347: DEBUG/VideoView(715): Error: 1,-4
09-01 07:47:20.086: DEBUG/dalvikvm(725): GC freed 637 objects / 58080 bytes in 174ms
09-01 07:47:25.167: DEBUG/dalvikvm(618): GC freed 438 objects / 18680 bytes in 234ms
09-01 07:52:01.647: DEBUG/dalvikvm(578): GC freed 12098 objects / 632840 bytes in 1522ms

Thank you first! It's my first question here and english is not my mother tongue. I hope my statement is clear.

Here is the answer:
I just forgot to push the raw .mp4 file to the sdcard.

iratao wrote:Here is the answer:
I just forgot to push the raw .mp4 file to the sdcard.

Hi iratao,

Your code helped me a lot to play a sample video from SDCard using your code snippet. But i want to run a Video file from raw folder which is available on my project resource. How to do that with your code? I tried to give my raw project folder path as
...................................
...................................
private String filename = "/raw/sample.mp4"
...................................
...................................
myVideo.setVideoPath(filename);
...................................

But it says "Cannot play video". I'm sure that i'm giving path as wrong. Could you please advise me how to resolve it?

thanks a lot for your code.

You can use:

MediaPlayer mp = MediaPlayer.create(this, R.raw.sample)

Joriz wrote:You can use:

MediaPlayer mp = MediaPlayer.create(this, R.raw.sample)

Hi,

I tried to play a video from a raw folder available in my project resource by using the following simple code snippet provided by Android developers website.

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

MediaPlayer mp = MediaPlayer.create(getBaseContext(), R.raw.sample); // sample: it is a .m4v file.
mp.start();

}

But when i run my code, it plays only the sound, i didn't see video player or video. Only sound is coming. I even added prepare() , but still the same problem May i know what should be the problem and how to resolve this issue?

Note: I'm trying on Android OS 1.5 HTC T-mobile handset.

But when i run my code, it plays only the sound, i didn't see video player or video. Only sound is coming.

This is standard behaviour for the mediaplayer. If you want to see the video as well, you'll have to set a Surface for the mediaplayer to show the video. First, create a SurfaceView in your layout, then use the following code:

Code: Select all

SurFaceView v = (SurfaceView) findViewById(R.id.mysurfaceview);
SurfaceHolder h = v.getHolder();
MediaPlayer mp = MediaPlayer.create(this, R.raw.sample);
mp.setDisplay(h);


I'm trying a similar thing at the moment, but the emulator won't show my video and just gives some weird error-like messages. I think this might be an emulator/computer problem, so I ordered an HTC Hero to test my code. If the code above works for you in an emulator, please let me know!

Oh yeah, thank you JORIZ.
I'll try SurfaceView now and get back to you with the result.

I created a SurfaceView in main.xml. It is showing a small rectanlgle, is this correct or i need to make to full screen, if Yes how to do that?
And when i added your code, it throws error as "SurFaceView cannot be resolve to a type". I imported SurfaceView as well. Do i need to do anything extra?

I am able to run your Surface code now on the device. I kept playing video at startup of my application. It throws error as 'The application has stopped unexpectedly. please try again'.
What is the problem?

I don't know... Have a look at the LogCat. You can put additional debug messages there using Log.d(TAG, MESSAGE).

Hi everyone!

I was very supprised when I found out that it's impossible to set speed of video playback on Android.

For example that video plays with 200% of speed, or 50% or -25%...

Does anybody know how to set video playback speed?

There is function to set position in video, in miliseconds, but it continues to play after that and I just want that video is still on requested position. Whenever i call video.pause() function it blocks whole video. So there is definitely some bug in pause() function.