C++ sp::findMessage方法代码示例

void ARTSPConnection::onMessageReceived(const sp<AMessage> &msg) {
    switch (msg->what()) {
        case kWhatConnect:
            onConnect(msg);
            break;

        case kWhatDisconnect:
            onDisconnect(msg);
            break;

        case kWhatCompleteConnection:
            onCompleteConnection(msg);
            break;

        case kWhatSendRequest:
            onSendRequest(msg);
            break;

        case kWhatReceiveResponse:
            onReceiveResponse();
            break;

        case kWhatObserveBinaryData:
        {
            CHECK(msg->findMessage("reply", &mObserveBinaryMessage));
            break;
        }

        default:
            TRESPASS();
            break;
    }
}

void ARTSPConnection::onReconnect(const sp<AMessage> &msg) {
    ALOGV("onReconnect");
    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));
    int32_t connectionID;
    CHECK(msg->findInt32("connection-id", &connectionID));
    if ((connectionID != mConnectionID) || mState != CONNECTING) {
        // While we were attempting to connect, the attempt was
        // cancelled.
        reply->setInt32("result", -ECONNABORTED);
        reply->post();
        if (mAddrHeader != NULL) {
            freeaddrinfo((struct addrinfo *)mAddrHeader);
            mAddrHeader = NULL;
        }
        return;
    }
    int32_t port;
    CHECK(msg->findInt32("port", &port));
    if (!createSocketAndConnect(mAddrHeader, port, reply)) {
        ALOGV("Failed to reconnect");
        reply->setInt32("result", -errno);
        mState = DISCONNECTED;
        mSocket = -1;
        reply->post();
        freeaddrinfo((struct addrinfo *)mAddrHeader);
        mAddrHeader = NULL;
    }
}

void ARTSPConnection::onCompleteConnection(const sp<AMessage> &msg) {
    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    int32_t connectionID;
    CHECK(msg->findInt32("connection-id", &connectionID));

    if ((connectionID != mConnectionID) || mState != CONNECTING) {
        // While we were attempting to connect, the attempt was
        // cancelled.
        reply->setInt32("result", -ECONNABORTED);
        reply->post();
        return;
    }

    struct timeval tv;
    tv.tv_sec = 0;
    tv.tv_usec = kSelectTimeoutUs;

    fd_set ws;
    FD_ZERO(&ws);
    FD_SET(mSocket, &ws);

    int res = select(mSocket + 1, NULL, &ws, NULL, &tv);
    CHECK_GE(res, 0);

    if (res == 0) {
        // Timed out. Not yet connected.

        msg->post();
        return;
    }

    int err;
    socklen_t optionLen = sizeof(err);
    CHECK_EQ(getsockopt(mSocket, SOL_SOCKET, SO_ERROR, &err, &optionLen), 0);
    CHECK_EQ(optionLen, (socklen_t)sizeof(err));

    if (err != 0) {
        LOGE("err = %d (%s)", err, strerror(err));

        reply->setInt32("result", -err);

        mState = DISCONNECTED;
        if (mUIDValid) {
            HTTPBase::UnRegisterSocketUserTag(mSocket);
        }
        close(mSocket);
        mSocket = -1;
    } else {
        reply->setInt32("result", OK);
        mState = CONNECTED;
        mNextCSeq = 1;

        postReceiveReponseEvent();
    }

    reply->post();
}

void DirectRenderer::onSetFormat(const sp<AMessage> &msg) {
    size_t trackIndex;
    CHECK(msg->findSize("trackIndex", &trackIndex));

    sp<AMessage> format;
    CHECK(msg->findMessage("format", &format));

    internalSetFormat(trackIndex, format);
}

void ARTSPConnection::onSendRequest(const sp<AMessage> &msg) {
    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    if (mState != CONNECTED) {
        reply->setInt32("result", -ENOTCONN);
        reply->post();
        return;
    }

    AString request;
    CHECK(msg->findString("request", &request));

    // Find the boundary between headers and the body.
    ssize_t i = request.find("\r\n\r\n");
    CHECK_GE(i, 0);

    int32_t cseq = mNextCSeq++;

    AString cseqHeader = "CSeq: ";
    cseqHeader.append(cseq);
    cseqHeader.append("\r\n");

    request.insert(cseqHeader, i + 2);

    LOGV("%s", request.c_str());

    size_t numBytesSent = 0;
    while (numBytesSent < request.size()) {
        ssize_t n =
            send(mSocket, request.c_str() + numBytesSent,
                 request.size() - numBytesSent, 0);

        if (n == 0) {
            // Server closed the connection.
            LOGE("Server unexpectedly closed the connection.");

            reply->setInt32("result", ERROR_IO);
            reply->post();
            return;
        } else if (n < 0) {
            if (errno == EINTR) {
                continue;
            }

            LOGE("Error sending rtsp request.");
            reply->setInt32("result", -errno);
            reply->post();
            return;
        }

        numBytesSent += (size_t)n;
    }

    mPendingRequests.add(cseq, reply);
}

status_t SaturationFilter::setParameters(const sp<AMessage> &msg) {
    sp<AMessage> params;
    CHECK(msg->findMessage("params", &params));

    float saturation;
    if (params->findFloat("saturation", &saturation)) {
        mSaturation = saturation;
    }

    return OK;
}

void ARTSPConnection::onDisconnect(const sp<AMessage> &msg) {
    if (mState == CONNECTED || mState == CONNECTING) {
        performDisconnect();
    }

    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    reply->setInt32("result", OK);

    reply->post();
}

void ARTSPConnection::onDisconnect(const sp<AMessage> &msg) {
    if (mState == CONNECTED || mState == CONNECTING) {
        close(mSocket);
        mSocket = -1;

        flushPendingRequests();
    }

    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    reply->setInt32("result", OK);
    mState = DISCONNECTED;

    reply->post();
}

void ARTSPConnection::onMessageReceived(const sp<AMessage> &msg) {
    switch (msg->what()) {
        case kWhatConnect:
            onConnect(msg);
            break;

        case kWhatDisconnect:
            onDisconnect(msg);
            break;

        case kWhatCompleteConnection:
            onCompleteConnection(msg);
            break;

        case kWhatSendRequest:
            onSendRequest(msg);
            break;

        case kWhatReceiveResponse:
            onReceiveResponse();
            break;

        case kWhatObserveBinaryData:
        {
            CHECK(msg->findMessage("reply", &mObserveBinaryMessage));
            break;
        }

#ifndef ANDROID_DEFAULT_CODE 
        case kWhatTimeout:
        {
            unsigned long cseq;
            CHECK(msg->findInt32("cseq", (int32_t*)&cseq));
            onTimeout(cseq);
            break;
        }
        case kWhatInjectPacket:
        {
            onInjectPacket(msg);
            break;
        }
#endif // #ifndef ANDROID_DEFAULT_CODE
        default:
            TRESPASS();
            break;
    }
}

void NuPlayer::renderBuffer(bool audio, const sp<AMessage> &msg) {
    // LOGV("renderBuffer %s", audio ? "audio" : "video");

    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    if (IsFlushingState(audio ? mFlushingAudio : mFlushingVideo)) {
        // We're currently attempting to flush the decoder, in order
        // to complete this, the decoder wants all its buffers back,
        // so we don't want any output buffers it sent us (from before
        // we initiated the flush) to be stuck in the renderer's queue.

        LOGV("we're still flushing the %s decoder, sending its output buffer"
             " right back.", audio ? "audio" : "video");

        reply->post();
        return;
    }

    sp<RefBase> obj;
    CHECK(msg->findObject("buffer", &obj));

    sp<ABuffer> buffer = static_cast<ABuffer *>(obj.get());

    int64_t &skipUntilMediaTimeUs =
        audio
            ? mSkipRenderingAudioUntilMediaTimeUs
            : mSkipRenderingVideoUntilMediaTimeUs;

    if (skipUntilMediaTimeUs >= 0) {
        int64_t mediaTimeUs;
        CHECK(buffer->meta()->findInt64("timeUs", &mediaTimeUs));

        if (mediaTimeUs < skipUntilMediaTimeUs) {
            LOGV("dropping %s buffer at time %lld as requested.",
                 audio ? "audio" : "video",
                 mediaTimeUs);

            reply->post();
            return;
        }

        skipUntilMediaTimeUs = -1;
    }

    mRenderer->queueBuffer(audio, buffer, reply);
}

bool NuPlayer::Renderer::dropBufferWhileFlushing(
        bool audio, const sp<AMessage> &msg) {
    bool flushing = false;

    {
        Mutex::Autolock autoLock(mFlushLock);
        if (audio) {
            flushing = mFlushingAudio;
        } else {
            flushing = mFlushingVideo;
        }
    }

    if (!flushing) {
        return false;
    }

    sp<AMessage> notifyConsumed;
    if (msg->findMessage("notifyConsumed", &notifyConsumed)) {
        notifyConsumed->post();
    }

    return true;
}

void DashPlayer::Decoder::onFillThisBuffer(const sp<AMessage> &msg) {
    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

#if 0
    sp<ABuffer> outBuffer;
    CHECK(msg->findBuffer("buffer", &outBuffer));
#else
    sp<ABuffer> outBuffer;
#endif

    if (mCSDIndex < mCSD.size()) {
        outBuffer = mCSD.editItemAt(mCSDIndex++);
        outBuffer->meta()->setInt64("timeUs", 0);

        reply->setBuffer("buffer", outBuffer);
        reply->post();
        return;
    }

    sp<AMessage> notify = mNotify->dup();
    notify->setMessage("codec-request", msg);
    notify->post();
}

void NuPlayer::Renderer::onQueueBuffer(const sp<AMessage> &msg) {
    int32_t audio;
    CHECK(msg->findInt32("audio", &audio));

    if (audio) {
        mHasAudio = true;
    } else {
        mHasVideo = true;
    }

    if (dropBufferWhileFlushing(audio, msg)) {
        return;
    }

    sp<RefBase> obj;
    CHECK(msg->findObject("buffer", &obj));
    sp<ABuffer> buffer = static_cast<ABuffer *>(obj.get());

    sp<AMessage> notifyConsumed;
    CHECK(msg->findMessage("notifyConsumed", &notifyConsumed));

    QueueEntry entry;
    entry.mBuffer = buffer;
    entry.mNotifyConsumed = notifyConsumed;
    entry.mOffset = 0;
    entry.mFinalResult = OK;

    if (audio) {
        mAudioQueue.push_back(entry);
        postDrainAudioQueue();
    } else {
        mVideoQueue.push_back(entry);
        postDrainVideoQueue();
    }

    if (!mSyncQueues || mAudioQueue.empty() || mVideoQueue.empty()) {
        return;
    }

    sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer;
    sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer;

    if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) {
        // EOS signalled on either queue.
        syncQueuesDone();
        return;
    }

    int64_t firstAudioTimeUs;
    int64_t firstVideoTimeUs;
    CHECK(firstAudioBuffer->meta()
            ->findInt64("timeUs", &firstAudioTimeUs));
    CHECK(firstVideoBuffer->meta()
            ->findInt64("timeUs", &firstVideoTimeUs));

    int64_t diff = firstVideoTimeUs - firstAudioTimeUs;

    ALOGV("queueDiff = %.2f secs", diff / 1E6);

    if (diff > 100000ll) {
        // Audio data starts More than 0.1 secs before video.
        // Drop some audio.

        (*mAudioQueue.begin()).mNotifyConsumed->post();
        mAudioQueue.erase(mAudioQueue.begin());
        return;
    }

    syncQueuesDone();
}

void MediaPuller::onMessageReceived(const sp<AMessage> &msg) {
    switch (msg->what()) {
        case kWhatStart:
        {
            status_t err;
            ALOGI("start mIsAudio=%d",mIsAudio);
            if (mIsAudio) {
                // This atrocity causes AudioSource to deliver absolute
                // systemTime() based timestamps (off by 1 us).
#ifdef MTB_SUPPORT                
                ATRACE_BEGIN_EXT("AudioPuller, kWhatStart");
#endif
                sp<MetaData> params = new MetaData;
                params->setInt64(kKeyTime, 1ll);
                err = mSource->start(params.get());
            } else {
#ifdef MTB_SUPPORT            
                ATRACE_BEGIN_EXT("VideoPuller, kWhatStart");
#endif
                err = mSource->start();
                if (err != OK) {
                    ALOGE("source failed to start w/ err %d", err);
                }
            }

            if (err == OK) {
							 ALOGI("start done, start to schedulePull data");
                schedulePull();
            }

            sp<AMessage> response = new AMessage;
            response->setInt32("err", err);

            uint32_t replyID;
            CHECK(msg->senderAwaitsResponse(&replyID));

            response->postReply(replyID);
#ifdef MTB_SUPPORT			
            ATRACE_END_EXT("VideoPuller, kWhatStart");
#endif
            break;
        }

        case kWhatStop:
        {
            sp<MetaData> meta = mSource->getFormat();
            const char *tmp;
            CHECK(meta->findCString(kKeyMIMEType, &tmp));
            AString mime = tmp;

            ALOGI("MediaPuller(%s) stopping.", mime.c_str());
            mSource->stop();
            ALOGI("MediaPuller(%s) stopped.", mime.c_str());
            ++mPullGeneration;

            sp<AMessage> notify;
            CHECK(msg->findMessage("notify", &notify));
            notify->post();
            break;
        }

        case kWhatPull:
        {
            int32_t generation;
#ifdef MTB_SUPPORT			
            if (mIsAudio) {
                ATRACE_BEGIN_EXT("AudioPuller, kWhatPull");
            } else {
                ATRACE_BEGIN_EXT("VideoPuller, kWhatPull");
            }
#endif			
            CHECK(msg->findInt32("generation", &generation));

            if (generation != mPullGeneration) {
                break;
            }

            MediaBuffer *mbuf;
	 
            status_t err = mSource->read(&mbuf);

            if (mPaused) {
                if (err == OK) {
                    mbuf->release();
                    mbuf = NULL;
                }

                schedulePull();
                break;
            }

            if (err != OK) {
                if (err == ERROR_END_OF_STREAM) {
                    ALOGI("stream ended.");
                } else {
                    ALOGE("error %d reading stream.", err);
                }
                ALOGI("err=%d.post kWhatEOS",err);
                sp<AMessage> notify = mNotify->dup();
                notify->setInt32("what", kWhatEOS);
//.........这里部分代码省略.........

void ARTSPConnection::onSendRequest(const sp<AMessage> &msg) {
    sp<AMessage> reply;
    CHECK(msg->findMessage("reply", &reply));

    if (mState != CONNECTED) {
        reply->setInt32("result", -ENOTCONN);
        reply->post();
        return;
    }

    AString request;
    CHECK(msg->findString("request", &request));

    // Just in case we need to re-issue the request with proper authentication
    // later, stash it away.
    reply->setString("original-request", request.c_str(), request.size());

    addAuthentication(&request);
    addUserAgent(&request);

    // Find the boundary between headers and the body.
    ssize_t i = request.find("\r\n\r\n");
    CHECK_GE(i, 0);

    int32_t cseq = mNextCSeq++;

    AString cseqHeader = "CSeq: ";
    cseqHeader.append(cseq);
    cseqHeader.append("\r\n");

    request.insert(cseqHeader, i + 2);

    ALOGV("request: '%s'", request.c_str());

    size_t numBytesSent = 0;
    while (numBytesSent < request.size()) {
        ssize_t n =
            send(mSocket, request.c_str() + numBytesSent,
                 request.size() - numBytesSent, 0);

        if (n < 0 && errno == EINTR) {
            continue;
        }

        if (n <= 0) {
            performDisconnect();

            if (n == 0) {
                // Server closed the connection.
                ALOGE("Server unexpectedly closed the connection.");

                reply->setInt32("result", ERROR_IO);
                reply->post();
            } else {
                ALOGE("Error sending rtsp request. (%s)", strerror(errno));
                reply->setInt32("result", -errno);
                reply->post();
            }

            return;
        }

        numBytesSent += (size_t)n;
    }

    mPendingRequests.add(cseq, reply);
}