使用android MediaCodec对原始H264视频流进行不正确解码

Question

//New Edited Code
public class Server {
static final int socketServerPORT = 53515;
MainActivity activity;
ServerSocket serverSocket;

public Server(MainActivity activity, Surface surface) {
    Log.e("constructor()", "called");
    this.activity = activity;
    Thread socketServerThread = new Thread(new SocketServerThread(surface));
    socketServerThread.start();
}

private static MediaCodecInfo selectCodec(String mimeType) {
    int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
        MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);

        if (codecInfo.isEncoder()) {
            continue;
        }

        String[] types = codecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (types[j].equalsIgnoreCase(mimeType)) {
                Log.e("codecinfo", codecInfo.getName());
                return codecInfo;
            }
        }
    }
    return null;
}

private class SocketServerThread extends Thread {
    InputStream is;
    Socket socket;
    private MediaCodec codec;
    private Surface surface;

    public SocketServerThread(Surface surface) {
        this.surface = surface;
    }

    @Override
    public void run() {
        Log.e("socketthread", "called");
        try {
            selectCodec("video/avc");
            codec = MediaCodec.createByCodecName(selectCodec("video/avc").getName());

            MediaFormat format = MediaFormat.createVideoFormat("video/avc", 800, 480);
            //  format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
            format.setInteger(MediaFormat.KEY_BIT_RATE, 1024000);
            format.setInteger(MediaFormat.KEY_FRAME_RATE, 25);
            codec.configure(format, surface, null, 0);
            codec.start();
            serverSocket = new ServerSocket(socketServerPORT);
            while (true) {
                socket = serverSocket.accept();
                Log.e("connection", "accepted");
                is = socket.getInputStream();
                if (is != null) {
                    //          File file = new File(Environment.getExternalStorageDirectory() + "/stream.mp4");
                    //              OutputStream output = new FileOutputStream(file);
                    byte[] buff = new byte[4 * 1024]; // or other buffer size
                    int read;
                    while ((read = is.read(buff)) != -1) {
                        //              output.write(buff, 0, read);
                        if (buff.length == 1)
                            continue;

                        int inIndex = codec.dequeueInputBuffer(10000);
                        if (inIndex >= 0) {
                            ByteBuffer inputBuffer = codec.getInputBuffer(inIndex);
                            inputBuffer.clear();
                            inputBuffer.put(buff);

                            codec.queueInputBuffer(inIndex, 0, buff.length, 16, 0);
                        }

                        MediaCodec.BufferInfo buffInfo = new MediaCodec.BufferInfo();
                        int outIndex = codec.dequeueOutputBuffer(buffInfo, 10000);

                        switch (outIndex) {
                            case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:
                                break;
                            case MediaCodec.INFO_TRY_AGAIN_LATER:
                                break;
                            case -3:
                                break;
                            default:
                                codec.releaseOutputBuffer(outIndex, true);
                        }
                    }
                }
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (codec != null) {
                codec.release();
            }
            if (socket != null) {
                try {
                    socket.close();
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
  }
}

MediaCodec.createByCodecName(selectCodec("video/avc").getName());

   private static MediaCodecInfo selectCodec(String mimeType) {
    int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
        MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);

        if (!codecInfo.isEncoder()) {
            continue;
        }

        String[] types = codecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (types[j].equalsIgnoreCase(mimeType)) {
                Log.e("codecinfo",codecInfo.getName());
                return codecInfo;
            }
        }
    }
    return null;
}

I/OMXClient: MuxOMX ctor
I/MediaCodec: [OMX.qcom.video.encoder.avc] setting surface generation   to 28345345
W/ACodec: [OMX.qcom.video.encoder.avc] Failed to set standard   component role 'video_decoder.avc'.
E/ACodec: [OMX.qcom.video.encoder.avc] configureCodec returning error -1010
E/ACodec: signalError(omxError 0x80001001, internalError -1010)
E/MediaCodec: Codec reported err 0xfffffc0e, actionCode 0, while in state 3
E/MediaCodec: configure failed with err 0xfffffc0e, resetting...
I/OMXClient: MuxOMX ctor
E/AndroidRuntime: FATAL EXCEPTION: Thread-5
Process: com.androidsrc.server, PID: 27681
android.media.MediaCodec$CodecException: Error 0xfffffc0e
at android.media.MediaCodec.configure(MediaCodec.java:1884)
at com.androidsrc.server.Server$SocketServerThread.run(Server.java:70)
at java.lang.Thread.run(Thread.java:761)

我之前也尝试使用此方法创建Mediacodec

codec =  MediaCodec.createDecoderByType("video/avc");

但视频质量与YouTube上分享的视频一样。

Answer 1

我更愿意对此进行评论，但仍然缺少所需的要点：d

我想你（或者我没有意识到它的作用是相反的）遗漏了一些重要的部分.你提供的视频显示了关于如何解释事物的信息缺失的迹象。

>

您是否发送并使用SPS和PPS？我不确定您创建的MediaFormat是否包含所有需要的信息。

一些解码器期望帧没有NAL报头。您发送的帧没有NAL报头吗？

我没看到你转移任何演示时间

关于如何传输介质，我建议您看看RTP/RTSP协议。为了进一步帮助您，我建议您也提供生产者逻辑