Comment utiliser MediaCodec sans MediaExtractor pour H264

J'ai besoin D'utiliser MediaCodec sans le MediaExtractor et je suis en train de lire le fichier en utilisant un FileInputStream. Actuellement, il ne fonctionne pas, il affiche une image brouillée verdâtre sur l'écran.

C'est le code source entier:

FileInputStream in = new FileInputStream("/sdcard/sample.ts");

String mimeType = "video/avc";
MediaCodec decoder = MediaCodec.createDecoderByType(mimeType);
MediaFormat format = MediaFormat.createVideoFormat(mimeType, 1920, 1080);

byte[] header_sps = { 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 };
byte[] header_pps = { 0, 0, 0, 1, 104, -18, 60, -128 };
format.setByteBuffer("csd-0", ByteBuffer.wrap(header_sps));
format.setByteBuffer("csd-1", ByteBuffer.wrap(header_pps));
format.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, 1920 * 1080);
format.setInteger("durationUs", 63446722);

decoder.configure(format, surface, null, 0);
decoder.start();

ByteBuffer[] inputBuffers = decoder.getInputBuffers();
ByteBuffer[] outputBuffers = decoder.getOutputBuffers();
BufferInfo info = new BufferInfo();
boolean isEOS = false;
long startMs = System.currentTimeMillis();

while (!Thread.interrupted()) {
    if (!isEOS) {
        int inIndex = decoder.dequeueInputBuffer(1000);
        if (inIndex >= 0) {
            byte buffer2[] = new byte[18800 * 8 * 8 * 8];
            ByteBuffer buffer = inputBuffers[inIndex];
            int sampleSize;

            sampleSize = in.read(buffer2, 0, 18800 * 4);

            buffer.clear();
            buffer.put(buffer2, 0, sampleSize);
            buffer.clear();

            if (sampleSize < 0) {
                decoder.queueInputBuffer(inIndex, 0, 0, 0, MediaCodec.BUFFER_FLAG_END_OF_STREAM);
                isEOS = true;
            } else {
                decoder.queueInputBuffer(inIndex, 0, sampleSize, 0, 0);
            }
        }
    }

    int outIndex = decoder.dequeueOutputBuffer(info, 10000);
    switch (outIndex) {
    case MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED:
        Log.d("DecodeActivity", "INFO_OUTPUT_BUFFERS_CHANGED");
        outputBuffers = decoder.getOutputBuffers();
        break;
    case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:
        Log.d("DecodeActivity", "New format " + decoder.getOutputFormat());
        break;
    case MediaCodec.INFO_TRY_AGAIN_LATER:
        Log.d("DecodeActivity", "dequeueOutputBuffer timed out! " + info);
        break;
    default:
        ByteBuffer buffer = outputBuffers[outIndex];
        Log.v("DecodeActivity", "We can't use this buffer but render it due to the API limit, " + buffer);

        while (info.presentationTimeUs / 1000 > System.currentTimeMillis() - startMs) {
            try {
                sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
                break;
            }
        }
        decoder.releaseOutputBuffer(outIndex, true);
        break;
    }

    if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
        Log.d("DecodeActivity", "OutputBuffer BUFFER_FLAG_END_OF_STREAM");
        break;
    }
}

decoder.stop();
decoder.release();

si j'utilise le Médiaextracteur, tout fonctionne très bien. J'ai obtenu les valeurs SPS/PPS en regardant le MediaFormat en utilisant MediaExtractor. Si je supprime la section ci-dessous, rien n'est indiqué sur l'écran.

byte[] header_sps = { 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 };
byte[] header_pps = { 0, 0, 0, 1, 104, -18, 60, -128 };
format.setByteBuffer("csd-0", ByteBuffer.wrap(header_sps));
format.setByteBuffer("csd-1", ByteBuffer.wrap(header_pps));
format.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, 1920 * 1080);
format.setInteger("durationUs", 63446722);

ce que je rate? Comment puis-je obtenir les valeurs SPS/PPS de façon programmatique sans MediaExtractor?