我正在使用Android 4.4.2在LG G2上运行这个简单的MediaCodec测试：
public class MyActivity extends Activity {
private static final String MIME_TYPE = "video/avc";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MediaFormat format = MediaFormat.createVideoFormat(MIME_TYPE, 1280, 720);
int numCodecs = MediaCodecList.getCodecCount();
for (int i = 0; i < numCodecs; i++) {
MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
if (codecInfo.isEncoder()) {
String[] types = codecInfo.getSupportedTypes();
for (int j = 0; j < types.length; j++) {
if (types[j].equalsIgnoreCase(MIME_TYPE)) {
MediaCodecInfo.CodecCapabilities capabilities = codecInfo.getCapabilitiesForType(MIME_TYPE);
for(int colorFormat : capabilities.colorFormats) {
if (colorFormat == MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar) {
format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar);
format.setInteger(MediaFormat.KEY_BIT_RATE, 1000000);
format.setInteger(MediaFormat.KEY_FRAME_RATE, 15);
format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 10);
MediaCodec mMediaCodec = MediaCodec.createByCodecName(codecInfo.getName());
mMediaCodec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
mMediaCodec.start();
MediaCodec.BufferInfo mBufferInfo = new MediaCodec.BufferInfo();
mMediaCodec.dequeueOutputBuffer(mBufferInfo, 1000);
return;
}
}
}
}
}
}
}
}
它引发了以下错误：
04-21 18:08:29.531 6513-6513/com.example.mediacodec I/OMXClient﹕ Using client-side OMX mux.
04-21 18:08:29.531 6513-6513/com.example.mediacodec E/OMXMaster﹕ A component of name 'OMX.qcom.audio.decoder.aac' already exists, ignoring this one.
04-21 18:08:29.531 6513-6513/com.example.mediacodec I/﹕ @@@VOLOG Info THD 4001A154: VOOMXPlugin.cpp VOOMXPlugin 59 open libvoOMXOne.so successfully. 0X5BB9A5B8
04-21 18:08:29.541 6513-6513/com.example.mediacodec E/﹕ VOLOG Info THD 4001A154 voCOMXBaseConfig.cpp Open 368 The config file vomeOne.cfg could not be opened!
04-21 18:08:29.541 6513-6513/com.example.mediacodec I/SoftAVCEncoder﹕ Construct SoftAVCEncoder
04-21 18:08:29.541 6513-6536/com.example.mediacodec I/OMXClient﹕ Using client-side OMX mux.
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/OMXMaster﹕ A component of name 'OMX.qcom.audio.decoder.aac' already exists, ignoring this one.
04-21 18:08:29.541 6513-6536/com.example.mediacodec I/﹕ @@@VOLOG Info THD 60471CD0: VOOMXPlugin.cpp VOOMXPlugin 59 open libvoOMXOne.so successfully. 0X5BB9A370
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/﹕ VOLOG Info THD 60471CD0 voCOMXBaseConfig.cpp Open 368 The config file vomeOne.cfg could not be opened!
04-21 18:08:29.541 6513-6536/com.example.mediacodec I/SoftAVCEncoder﹕ Construct SoftAVCEncoder
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/SoftAVCEncoder﹕ internalSetParameter: StoreMetadataInBuffersParams.nPortIndex not zero!
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/OMXNodeInstance﹕ OMX_SetParameter() failed for StoreMetaDataInBuffers: 0x80001001
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/ACodec﹕ [OMX.google.h264.encoder] storeMetaDataInBuffers (output) failed w/ err -2147483648
04-21 18:08:29.541 6513-6536/com.example.mediacodec I/ACodec﹕ setupVideoEncoder succeeded
04-21 18:08:29.541 6513-6537/com.example.mediacodec E/SoftAVCEncoder﹕ Failed to initialize the encoder: -8
04-21 18:08:29.551 6513-6536/com.example.mediacodec E/ACodec﹕ [OMX.google.h264.encoder] ERROR(0x80001001)
04-21 18:08:29.551 6513-6535/com.example.mediacodec E/MediaCodec﹕ Codec reported an error. (omx error 0x80001001, internalError -2147483648)
04-21 18:08:29.551 6513-6513/com.example.mediacodec D/AndroidRuntime﹕ Shutting down VM
04-21 18:08:29.551 6513-6513/com.example.mediacodec W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x417a8e48)
04-21 18:08:29.551 6513-6513/com.example.mediacodec E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.mediacodec, PID: 6513
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mediacodec/com.example.mediacodec.MyActivity}: java.lang.IllegalStateException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2200)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2250)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1200)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5105)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException
at android.media.MediaCodec.dequeueOutputBuffer(Native Method)
at com.example.mediacodec.MyActivity.onCreate(MyActivity.java:49)
at android.app.Activity.performCreate(Activity.java:5275)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2250)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1200)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5105)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)
at dalvik.system.NativeStart.main(Native Method)
可以在Sony Xperia ZR上重现相同的错误。两个设备也支持COLOR_FormatYUV420SemiPlanar，并且它可以很好地使用相同的参数。我试图从EncodeDecodeTest包运行android.media.cts并成功通过，但看起来它只测试第一个支持的编解码器的第一个支持的颜色格式，COLOR_FormatYUV420SemiPlanar情况下。
答案 0 :(得分：0)
在你的日志中，
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/SoftAVCEncoder﹕ internalSetParameter: StoreMetadataInBuffersParams.nPortIndex not zero!
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/OMXNodeInstance﹕ OMX_SetParameter() failed for StoreMetaDataInBuffers: 0x80001001
04-21 18:08:29.541 6513-6536/com.example.mediacodec E/ACodec﹕ [OMX.google.h264.encoder] storeMetaDataInBuffers (output) failed w/ err -2147483648
04-21 18:08:29.541 6513-6536/com.example.mediacodec I/ACodec﹕ setupVideoEncoder succeeded
04-21 18:08:29.541 6513-6537/com.example.mediacodec E/SoftAVCEncoder﹕ Failed to initialize the encoder: -8
AVC停止了nPortIndex不为零。 请参阅以下链接作为参考。 http://androidxref.com/4.4.2_r2/xref/frameworks/av/media/libstagefright/codecs/avc/enc/SoftAVCEncoder.cpp#684
686 StoreMetaDataInBuffersParams *storeParams =
687 (StoreMetaDataInBuffersParams*)params;
688 if (storeParams->nPortIndex != 0) {
689 ALOGE("%s: StoreMetadataInBuffersParams.nPortIndex not zero!",
690 __FUNCTION__);
691 return OMX_ErrorUndefined;
692 }
会在SoftAVCEncoder.cpp上产生错误，
150 /** There was an error, but the cause of the error could not be determined */
151 OMX_ErrorUndefined = (OMX_S32) 0x80001001,
http://androidxref.com/4.4.2_r2/xref/frameworks/native/include/media/openmax/OMX_Core.h#151
如何查看配置或查找此错误的解决方法？