尝试使用媒体编解码器解码编码数据克数据包，但在dequeueOutputBuffer（）中始终获得-1。
请帮助我 - 我做错了什么？我试图在没有成功的情况下面对这个问题。
private void decodeVideo（）{
new Thread(new Runnable() {
@Override
public void run() {
int n = 0;
MediaFormat mediaFormat = new MediaFormat();
mediaFormat.setString(MediaFormat.KEY_MIME, "video/avc");
mediaFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, 100000);
mediaFormat.setInteger(MediaFormat.KEY_WIDTH,
surfaceView.getWidth());
mediaFormat.setInteger(MediaFormat.KEY_HEIGHT,
surfaceView.getHeight());
mediaFormat.setInteger(
MediaFormat.KEY_PUSH_BLANK_BUFFERS_ON_STOP, 1);
mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT,
MediaCodecInfo.CodecCapabilities.COLOR_FormatL2);// TODO
byte[] csd_info = { 0, 0, 0, 1, 103, 100, 0, 40, -84, 52, -59,
1, -32, 17, 31, 120, 11, 80, 16, 16, 31, 0, 0, 3, 3,
-23, 0, 0, -22, 96, -108, 0, 0, 0, 1, 104, -18, 60,
-128 };
mediaFormat.setByteBuffer("csd-0", ByteBuffer.wrap(csd_info));
mediaFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE,
1920 * 1080);
mediaFormat.setInteger("durationUs", 63446722);
MediaCodec codec = MediaCodec.createDecoderByType("video/avc");
codec.configure(mediaFormat, mHolder.getSurface(), null, 0);
codec.start();
ByteBuffer[] inputBuffers = codec.getInputBuffers();
ByteBuffer[] outputBuffers = codec.getOutputBuffers();
BufferInfo info = new BufferInfo();
while (flag) {
int inputBufferIndex = codec.dequeueInputBuffer(-1);
if (inputBufferIndex >= 0) {
while (mPackets.size() <= 0) {
try {
Log.d(TAG, "nopackets");
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
Log.d(TAG, "now I have packets!");
inputBuffers[inputBufferIndex].clear();
DatagramPacket currentDatagram = mPackets.remove();
byte[] byteBuffer = (ByteBuffer.wrap(currentDatagram
.getData())).array();
inputBuffers[inputBufferIndex].put(byteBuffer, 0,
byteBuffer.length);
codec.queueInputBuffer(inputBufferIndex, 0,
byteBuffer.length, timestamp(), 0);
}
int outputBufferIndex = codec.dequeueOutputBuffer(info,-1);//always get-1
if (outputBufferIndex == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
outputBuffers = codec.getOutputBuffers();
Log.d(TAG, "INFO_OUTPUT_BUFFERS_CHANGED");
} else if (outputBufferIndex == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
// Subsequent data will conform to new format.
mediaFormat = codec.getOutputFormat();
Log.d(TAG, "INFO_OUTPUT_FORMAT_CHANGED");
} else if (outputBufferIndex >= 0) {
Log.d(TAG, "outputBufferIndex>=0");
if (n > 2) {
Log.d(TAG, "n>2");
// We have successfully encoded and decoded an image
// !
int length = info.size;
codec.releaseOutputBuffer(outputBufferIndex, false);
n++;
}
}
}
codec.stop();
codec.release();
codec = null;
}
}).start();
}
非常感谢你抽出时间。