[android-developers] Re: MediaRecorder prepare() causes segfault

where is your mediarecorder.setOutputFile(); method

On Monday, March 29, 2010 2:54:28 AM UTC+5:30, dwilde1 wrote:

Folks,

I have a situation where my MediaRecorder instance causes a segfault.
I'm working with a HTC Hero, Android 1.5+APIs. In the log i see (after
the segfault announcement) a register dump and then a numbered list
#00 libmedia_jni.so to  #18 linker, then a stack trace.

My Eclipse won't let me copy the log buffer, but I've done three
screen captures that sum it up. If you have time to examine, send me a
direct e-mail.

<pre><code>
    if (mRecorder == null) mRecorder = new MediaRecorder();
    mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    mRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
    mRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
//         mRecorder.setVideoSize(640, 480);
//         mRecorder.setVideoFrameRate(20);
    mRecorder.setPreviewDisplay(surfaceHolder.getSurface());
    mRecorder.prepare();
    mRecorder.start();
</code></pre>

I've tried other variants, including H263 and 3gp. What else can I do
to debug this? Everythin g seems fine up to prepare().

I tried adding the onErrorListener, but it seems to interfere with the
MediaPlayer's onErrorListener. I'm using a 4-second beep-count to
prepare for auto triggering of the camera, and when I enable the error
handler for the MR everything in my handler state machines goes awry.

Thanks in advance! :D

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