MediaCodec.dequeInputBuffer/dequeOutputBuffer处的IllegalStateException [英] IllegalStateException at MediaCodec.dequeInputBuffer / dequeOutputBuffer
问题描述
我正在尝试将PNG文件转换为一个切片的视频剪辑，以便仅在项目上进行启动.
I am trying to convert a PNG file to a one slice video clip, so to just to make a start-up over a project.
我有实现此目标的代码是:-
What I had code to make it happen is :-
private boolean MediaConversion()
{
MediaCodec codec = MediaCodec.createEncoderByType(MIMETYPE);
MediaFormat mediaFormat = null;
if(CamcorderProfile.hasProfile(CamcorderProfile.QUALITY_720P)){
mediaFormat = MediaFormat.createVideoFormat(MIMETYPE, 1280 , 720);
} else {
mediaFormat = MediaFormat.createVideoFormat(MIMETYPE, 720, 480);
}
mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, 700000);
mediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE, 10);
mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420SemiPlanar);
mediaFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 5);
codec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
codec.start();
ByteBuffer[] inputBuffers = codec.getInputBuffers();
ByteBuffer[] outputBuffers = codec.getOutputBuffers();
boolean sawInputEOS = false;
int inputBufferIndex= -1, outputBufferIndex= -1;
BufferInfo info=null;
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
Bitmap bitmap = null;
try {
bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.image);
Log.e("Uploaded", "Bitmap:" + bitmap.getWidth() + "X" + bitmap.getHeight());
} catch (Exception e) {
e.printStackTrace();
}
bitmap = Bitmap.createScaledBitmap(bitmap, WIDTH, HEIGHT, false);
bitmap.compress(Bitmap.CompressFormat.PNG, 100,
byteArrayOutputStream);
byte[] dat = byteArrayOutputStream.toByteArray();
info = new BufferInfo();
**// Exception occurred on this below line in Emulator, LINE No. 182//**
inputBufferIndex = codec.dequeueInputBuffer(WAITTIME);
if(dat.length<=0)
sawInputEOS=true;
if(inputBufferIndex >= 0){
if(!sawInputEOS){
int samplesiz= dat.length;
inputBuffers[inputBufferIndex].put(dat);
codec.queueInputBuffer(inputBufferIndex, 0, samplesiz, presentationTime, 0);
presentationTime += 100;
**// Exception occurred on this below line in DEVICE, LINE No. 193 //**
outputBufferIndex = codec.dequeueOutputBuffer(info, WAITTIME);
Log.i("BATA", "outputBufferIndex="+outputBufferIndex);
if(outputBufferIndex >= 0){
byte[] array = new byte[info.size];
outputBuffers[outputBufferIndex].get(array);
if(array != null){
dos = array;
}
codec.releaseOutputBuffer(outputBufferIndex, false);
inputBuffers[inputBufferIndex].clear();
outputBuffers[outputBufferIndex].clear();
}
}else{
codec.queueInputBuffer(inputBufferIndex, 0, 0, presentationTime, MediaCodec.BUFFER_FLAG_END_OF_STREAM);
outputBufferIndex = codec.dequeueOutputBuffer(info, WAITTIME);
Log.i("CHAK", "outputBufferIndex="+outputBufferIndex);
if(outputBufferIndex >= 0){
byte[] array = new byte[info.size];
outputBuffers[outputBufferIndex].get(array);
if(array != null){
dos = array;
}
codec.releaseOutputBuffer(outputBufferIndex, false);
inputBuffers[inputBufferIndex].clear();
outputBuffers[outputBufferIndex].clear();
}
}
}
codec.stop();
codec.release();
codec = null;
return true;
}
这是异常日志:-
当试图在Emulator Api Level 19上运行时:
When tried to run over Emulator Api Level 19:
12-02 23:58:58.214: E/SoftAVCEncoder(1193): internalSetParameter: StoreMetadataInBuffersParams.nPortIndex not zero!
12-02 23:58:58.214: E/OMXNodeInstance(1193): OMX_SetParameter() failed for StoreMetaDataInBuffers: 0x80001001
12-02 23:58:58.224: E/ACodec(1193): [OMX.google.h264.encoder] storeMetaDataInBuffers (output) failed w/ err -2147483648
12-02 23:58:58.224: I/ACodec(1193): setupVideoEncoder succeeded
12-02 23:58:58.254: E/SoftAVCEncoder(1193): Failed to initialize the encoder: -8
12-02 23:58:58.254: E/ACodec(1193): [OMX.google.h264.encoder] ERROR(0x80001001)
12-02 23:58:58.254: E/MediaCodec(1193): Codec reported an error. (omx error 0x80001001, internalError -2147483648)
12-02 23:59:00.424: E/AndroidRuntime(1193): FATAL EXCEPTION: main
12-02 23:59:00.424: E/AndroidRuntime(1193): Process: com.antech.kefilm, PID: 1193
12-02 23:59:00.424: E/AndroidRuntime(1193): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.antech.kefilm/com.antech.kefilm.NewClass}: java.lang.IllegalStateException
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.ActivityThread.access$700(ActivityThread.java:135)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.os.Handler.dispatchMessage(Handler.java:102)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.os.Looper.loop(Looper.java:137)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.ActivityThread.main(ActivityThread.java:4998)
12-02 23:59:00.424: E/AndroidRuntime(1193): at java.lang.reflect.Method.invokeNative(Native Method)
12-02 23:59:00.424: E/AndroidRuntime(1193): at java.lang.reflect.Method.invoke(Method.java:515)
12-02 23:59:00.424: E/AndroidRuntime(1193): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
12-02 23:59:00.424: E/AndroidRuntime(1193): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
12-02 23:59:00.424: E/AndroidRuntime(1193): at dalvik.system.NativeStart.main(Native Method)
12-02 23:59:00.424: E/AndroidRuntime(1193): Caused by: java.lang.IllegalStateException
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.media.MediaCodec.dequeueInputBuffer(Native Method)
12-02 23:59:00.424: E/AndroidRuntime(1193): at com.antech.kefilm.NewClass.MediaConversion(NewClass.java:182)
12-02 23:59:00.424: E/AndroidRuntime(1193): at com.antech.kefilm.NewClass.onCreate(NewClass.java:83)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.Activity.performCreate(Activity.java:5243)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
12-02 23:59:00.424: E/AndroidRuntime(1193): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
12-02 23:59:00.424: E/AndroidRuntime(1193): ... 11 more
但是，当在Galaxy Tab 3(设备)上运行时:
But, when run over Galaxy Tab 3 (device):
12-03 05:32:09.670: E/ACodec(3096): [OMX.MARVELL.VIDEO.HW.CODA7542ENCODER] ERROR(0x80001005)
12-03 05:32:09.670: E/MediaCodec(3096): Codec reported an error. (omx error 0x80001005, internalError -2147483648)
12-03 05:32:09.670: E/AndroidRuntime(3096): Caused by: java.lang.IllegalStateException
12-03 05:32:09.670: E/AndroidRuntime(3096): at android.media.MediaCodec.dequeueOutputBuffer(Native Method)
12-03 05:32:09.670: E/AndroidRuntime(3096): at com.antech.kefilm.NewClass.MediaConversion(NewClass.java:193)
12-03 05:32:09.670: E/AndroidRuntime(3096): at com.antech.kefilm.NewClass.onCreate(NewClass.java:83)
参考资料，据此我开始了这个项目:-
References, to according which I started this project:-
- Ques: Using MediaCodec to save series of images as Video
- Stuff: Android MediaCodec Stuff
谢谢.
推荐答案
首先，我不希望模拟器编解码器能够正常工作.如果他们工作了，我会感到惊喜.这种观点有助于我避免失望.
First, I don't expect the emulator codecs to work at all. If they do work, I'm pleasantly surprised. This outlook helps me avoid disappointment.
第二，我的猜测是传递到编码器中的帧的大小是错误的.您正在获取从位图解码的RGBA帧，并将其填充到YUV 420缓冲区中.这是行不通的.对于YUV420，您传递的数据量应为宽度*高度* 1.5个字节(其中，步幅==宽度，这些平面打包在一起).在Android 4.3及更高版本的设备上，可以通过 CTS EncodeDecodeTest 确认此行为.无法保证旧设备无法正常工作.
Second, my guess would be that the size of the frame being passed into the encoder is wrong. You're taking an RGBA frame decoded from a Bitmap and stuffing it into a YUV 420 buffer. This doesn't work. The amount of data you're passing in should be exactly width * height * 1.5 bytes for YUV420 (where stride==width and the planes are packed together). On an Android 4.3+ device this behavior is confirmed via the CTS EncodeDecodeTest; older devices are not guaranteed to work.
此外，您正在将格式设置为COLOR_FormatYUV420SemiPlanar；通常，您无法假设这一点.您需要在编解码器中查询支持的格式列表，确定输入是平面的还是半平面的，然后相应地格式化缓冲区输入. EncodeDecodeTest中的缓冲区到缓冲区和缓冲区到表面测试演示了如何执行此操作.
Also, you're setting the format to COLOR_FormatYUV420SemiPlanar; in general you can't assume that. You need to query the codec for the list of supported formats, determine whether the input needs to be planar or semi-planar, and then format the buffer input accordingly. The buffer-to-buffer and buffer-to-surface tests in the EncodeDecodeTest demonstrate how to do this.
或者，在Android 4.3及更高版本上，您可以将位图上载到纹理，为Surface输入配置编解码器，并使用GLES渲染纹理(如果位图大小不符合要求，则硬件可以解决任何缩放问题，与您的视频尺寸匹配).不过，这需要更多的代码.
Alternatively, on Android 4.3 and later, you can upload the bitmap to a texture, configure the codec for Surface input, and render the texture with GLES (which lets the hardware take care of any scaling issues if the bitmap size doesn't match your video size). This takes a lot more code though.
说了这么多，MediaCodec诊断通常是无用的，所以这都是猜测.
Having said all that, the MediaCodec diagnostics are generally useless, so this is all guesswork.
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