C++ sp::findBuffer方法代码示例

void TunnelRenderer::onMessageReceived(const sp<AMessage> &msg) {
    switch (msg->what()) {
        case kWhatQueueBuffer:
        {
            sp<ABuffer> buffer;
            CHECK(msg->findBuffer("buffer", &buffer));

            queueBuffer(buffer);

            if (mStreamSource == NULL) {
                if (mTotalBytesQueued > 0ll) {
                    initPlayer();
                } else {
                    ALOGI("Have %lld bytes queued...", mTotalBytesQueued);
                }
            } else {
                mStreamSource->doSomeWork();
            }
            break;
        }

        default:
            TRESPASS();
    }
}

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

    int32_t what;
    CHECK(msg->findInt32("what", &what));

    switch (what) {
        case DecoderContext::kWhatOutputBufferReady:
        {
            size_t index;
            CHECK(msg->findSize("index", &index));

            int64_t timeUs;
            CHECK(msg->findInt64("timeUs", &timeUs));

            sp<ABuffer> buffer;
            CHECK(msg->findBuffer("buffer", &buffer));

            queueOutputBuffer(trackIndex, index, timeUs, buffer);
            break;
        }

        default:
            TRESPASS();
    }
}

bool NuPlayer::Decoder::supportsSeamlessAudioFormatChange(const sp<AMessage> &targetFormat) const {
    if (targetFormat == NULL) {
        return true;
    }

    AString mime;
    if (!targetFormat->findString("mime", &mime)) {
        return false;
    }

    if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_AUDIO_AAC)) {
        // field-by-field comparison
        const char * keys[] = { "channel-count", "sample-rate", "is-adts" };
        for (unsigned int i = 0; i < sizeof(keys) / sizeof(keys[0]); i++) {
            int32_t oldVal, newVal;
            if (!mFormat->findInt32(keys[i], &oldVal) || !targetFormat->findInt32(keys[i], &newVal)
                    || oldVal != newVal) {
                return false;
            }
        }

        sp<ABuffer> oldBuf, newBuf;
        if (mFormat->findBuffer("csd-0", &oldBuf) && targetFormat->findBuffer("csd-0", &newBuf)) {
            if (oldBuf->size() != newBuf->size()) {
                return false;
            }
            return !memcmp(oldBuf->data(), newBuf->data(), oldBuf->size());
        }
    }
    return false;
}

void NuPlayer::HTTPLiveSource::onSessionNotify_l(const sp<AMessage> &msg) {
    int32_t what;
    CHECK(msg->findInt32("what", &what));

    if(what == LiveSession::kWhatPicture) {
        sp<ABuffer> metabuffer;
        CHECK(msg->findBuffer("buffer", &metabuffer));
        
        AString mimeType;
        sp<ABuffer> buffer;
        if(((metabuffer)->meta()->findString("mime", &mimeType)) &&
                ((metabuffer)->meta()->findBuffer("pictureBuffer", &buffer))) {
            if (mMetaData == NULL) {
                mMetaData = new MetaData;
            }
            mMetaData->setCString(kKeyAlbumArtMIME, mimeType.c_str());
            mMetaData->setData(kKeyAlbumArt, MetaData::TYPE_NONE, buffer->data(), buffer->size());
            ALOGI("kKeyAlbumArt set Data :%s, datasize:%d", mimeType.c_str(), buffer->size());
            
            sp<AMessage> notify = dupNotify();
            notify->setInt32("what", NuPlayer::Source::kWhatPicture);
            notify->post();
        }
    }
    else if (what == LiveSession::kWhatBufferingStart) {
        sp<AMessage> notify = dupNotify();
        notify->setInt32("what", kWhatBufferingStart);
        notify->post();
    }
    else if (what == LiveSession::kWhatBufferingEnd) {
        sp<AMessage> notify = dupNotify();
        notify->setInt32("what", kWhatBufferingEnd);
        notify->post();
    }
}

void NuPlayer::Decoder::configure(const sp<AMessage> &format) {
    CHECK(mCodec == NULL);

    AString mime;
    CHECK(format->findString("mime", &mime));

    sp<AMessage> notifyMsg =
        new AMessage(kWhatCodecNotify, id());

    mCSDIndex = 0;
    for (size_t i = 0;; ++i) {
        sp<ABuffer> csd;
        if (!format->findBuffer(StringPrintf("csd-%d", i).c_str(), &csd)) {
            break;
        }

        mCSD.push(csd);
    }

#ifdef QCOM_HARDWARE
    sp<ABuffer> extendedCSD = ExtendedCodec::getRawCodecSpecificData(format);
    if (extendedCSD != NULL) {
        ALOGV("pushing extended CSD of size %d", extendedCSD->size());
        mCSD.push(extendedCSD);
    }

    sp<ABuffer> aacCSD = ExtendedCodec::getAacCodecSpecificData(format);
    if (aacCSD != NULL) {
        ALOGV("pushing AAC CSD of size %d", aacCSD->size());
        mCSD.push(aacCSD);
    }
#endif

    if (mNativeWindow != NULL) {
        format->setObject("native-window", mNativeWindow);
    }

    // Current video decoders do not return from OMX_FillThisBuffer
    // quickly, violating the OpenMAX specs, until that is remedied
    // we need to invest in an extra looper to free the main event
    // queue.
    bool needDedicatedLooper = !strncasecmp(mime.c_str(), "video/", 6);

    mFormat = format;
    mCodec = new ACodec;

    if (needDedicatedLooper && mCodecLooper == NULL) {
        mCodecLooper = new ALooper;
        mCodecLooper->setName("NuPlayerDecoder");
        mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
    }

    (needDedicatedLooper ? mCodecLooper : looper())->registerHandler(mCodec);

    mCodec->setNotificationMessage(notifyMsg);
    mCodec->initiateSetup(format);
}

sp<ABuffer> ExtendedCodec::getAacCodecSpecificData(
        const sp<AMessage> &msg) {
    sp<ABuffer> buffer;
    if (msg->findBuffer(getMsgKey(kKeyAacCodecSpecificData), &buffer)) {
        ALOGV("ACodec found kKeyAacCodecSpecificData of size %d\n", buffer->size());
        return buffer;
    }
    return NULL;
}

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

    sp<ABuffer> accessUnit;
    CHECK(msg->findBuffer("accessUnit", &accessUnit));

    CHECK_LT(trackIndex, 2u);
    CHECK(mDecoderContext[trackIndex] != NULL);

    mDecoderContext[trackIndex]->queueInputBuffer(accessUnit);
}

// static
bool ColorUtils::getHDRStaticInfoFromFormat(const sp<AMessage> &format, HDRStaticInfo *info) {
    sp<ABuffer> buf;
    if (!format->findBuffer("hdr-static-info", &buf)) {
        return false;
    }

    // TODO: Make this more flexible when adding more members to HDRStaticInfo
    if (buf->size() != 25 /* static Metadata Type 1 size */) {
        ALOGW("Ignore invalid HDRStaticInfo with size: %zu", buf->size());
        return false;
    }

    const uint8_t *data = buf->data();
    if (*data != HDRStaticInfo::kType1) {
        ALOGW("Unsupported static Metadata Type %u", *data);
        return false;
    }

    info->mID = HDRStaticInfo::kType1;
    info->sType1.mR.x = U16LE_AT(&data[1]);
    info->sType1.mR.y = U16LE_AT(&data[3]);
    info->sType1.mG.x = U16LE_AT(&data[5]);
    info->sType1.mG.y = U16LE_AT(&data[7]);
    info->sType1.mB.x = U16LE_AT(&data[9]);
    info->sType1.mB.y = U16LE_AT(&data[11]);
    info->sType1.mW.x = U16LE_AT(&data[13]);
    info->sType1.mW.y = U16LE_AT(&data[15]);
    info->sType1.mMaxDisplayLuminance = U16LE_AT(&data[17]);
    info->sType1.mMinDisplayLuminance = U16LE_AT(&data[19]);
    info->sType1.mMaxContentLightLevel = U16LE_AT(&data[21]);
    info->sType1.mMaxFrameAverageLightLevel = U16LE_AT(&data[23]);

    ALOGV("Got HDRStaticInfo from config (R: %u %u, G: %u %u, B: %u, %u, W: %u, %u, "
            "MaxDispL: %u, MinDispL: %u, MaxContentL: %u, MaxFrameAvgL: %u)",
            info->sType1.mR.x, info->sType1.mR.y, info->sType1.mG.x, info->sType1.mG.y,
            info->sType1.mB.x, info->sType1.mB.y, info->sType1.mW.x, info->sType1.mW.y,
            info->sType1.mMaxDisplayLuminance, info->sType1.mMinDisplayLuminance,
            info->sType1.mMaxContentLightLevel, info->sType1.mMaxFrameAverageLightLevel);
    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 MediaFilter::onInputBufferFilled(const sp<AMessage> &msg) {
    IOMX::buffer_id bufferID;
    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
    BufferInfo *info = findBufferByID(kPortIndexInput, bufferID);

    if (mState != STARTED) {
        // we're not running, so we'll just keep that buffer...
        info->mStatus = BufferInfo::OWNED_BY_US;
        return;
    }

    if (info->mGeneration != mGeneration) {
        ALOGV("Caught a stale input buffer [ID %d]", bufferID);
        // buffer is stale (taken before a flush/shutdown) - repost it
        CHECK_EQ(info->mStatus, BufferInfo::OWNED_BY_US);
        postFillThisBuffer(info);
        return;
    }

    CHECK_EQ(info->mStatus, BufferInfo::OWNED_BY_UPSTREAM);
    info->mStatus = BufferInfo::OWNED_BY_US;

    sp<ABuffer> buffer;
    int32_t err = OK;
    bool eos = false;

    if (!msg->findBuffer("buffer", &buffer)) {
        // these are unfilled buffers returned by client
        CHECK(msg->findInt32("err", &err));

        if (err == OK) {
            // buffers with no errors are returned on MediaCodec.flush
            ALOGV("saw unfilled buffer (MediaCodec.flush)");
            postFillThisBuffer(info);
            return;
        } else {
            ALOGV("saw error %d instead of an input buffer", err);
            eos = true;
        }

        buffer.clear();
    }

    int32_t isCSD;
    if (buffer != NULL && buffer->meta()->findInt32("csd", &isCSD)
            && isCSD != 0) {
        // ignore codec-specific data buffers
        ALOGW("MediaFilter received a codec-specific data buffer");
        postFillThisBuffer(info);
        return;
    }

    int32_t tmp;
    if (buffer != NULL && buffer->meta()->findInt32("eos", &tmp) && tmp) {
        eos = true;
        err = ERROR_END_OF_STREAM;
    }

    mAvailableInputBuffers.push_back(info);
    processBuffers();

    if (eos) {
        mPortEOS[kPortIndexInput] = true;
        mInputEOSResult = err;
    }

    ALOGV("Handled kWhatInputBufferFilled. [ID %u]", bufferID);
}

status_t ConvertMessageToMap(
        JNIEnv *env, const sp<AMessage> &msg, jobject *map) {
    ScopedLocalRef<jclass> hashMapClazz(
            env, env->FindClass("java/util/HashMap"));

    if (hashMapClazz.get() == NULL) {
        return -EINVAL;
    }

    jmethodID hashMapConstructID =
        env->GetMethodID(hashMapClazz.get(), "<init>", "()V");

    if (hashMapConstructID == NULL) {
        return -EINVAL;
    }

    jmethodID hashMapPutID =
        env->GetMethodID(
                hashMapClazz.get(),
                "put",
                "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");

    if (hashMapPutID == NULL) {
        return -EINVAL;
    }

    jobject hashMap = env->NewObject(hashMapClazz.get(), hashMapConstructID);

    for (size_t i = 0; i < msg->countEntries(); ++i) {
        AMessage::Type valueType;
        const char *key = msg->getEntryNameAt(i, &valueType);

        jobject valueObj = NULL;

        switch (valueType) {
            case AMessage::kTypeInt32:
            {
                int32_t val;
                CHECK(msg->findInt32(key, &val));

                valueObj = makeIntegerObject(env, val);
                break;
            }

            case AMessage::kTypeInt64:
            {
                int64_t val;
                CHECK(msg->findInt64(key, &val));

                valueObj = makeLongObject(env, val);
                break;
            }

            case AMessage::kTypeFloat:
            {
                float val;
                CHECK(msg->findFloat(key, &val));

                valueObj = makeFloatObject(env, val);
                break;
            }

            case AMessage::kTypeString:
            {
                AString val;
                CHECK(msg->findString(key, &val));

                valueObj = env->NewStringUTF(val.c_str());
                break;
            }

            case AMessage::kTypeBuffer:
            {
                sp<ABuffer> buffer;
                CHECK(msg->findBuffer(key, &buffer));

                valueObj = makeByteBufferObject(
                        env, buffer->data(), buffer->size());
                break;
            }

            case AMessage::kTypeRect:
            {
                int32_t left, top, right, bottom;
                CHECK(msg->findRect(key, &left, &top, &right, &bottom));

                SetMapInt32(
                        env,
                        hashMap,
                        hashMapPutID,
                        StringPrintf("%s-left", key).c_str(),
                        left);

                SetMapInt32(
                        env,
                        hashMap,
                        hashMapPutID,
                        StringPrintf("%s-top", key).c_str(),
                        top);

//.........这里部分代码省略.........

void DashPlayer::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<ABuffer> buffer;
    CHECK(msg->findBuffer("buffer", &buffer));

    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();
}

//.........这里部分代码省略.........
                                    mChosenVideoResolutionType,
                                    mChosenVideoResolutionIndex,
                                    &width,
                                    &height,
                                    NULL /* framesPerSecond */,
                                    NULL /* interlaced */));

                        mClient->onDisplayConnected(
                                mClientInfo.mPlaybackSession
                                    ->getSurfaceTexture(),
                                width,
                                height,
                                mUsingHDCP
                                    ? IRemoteDisplayClient::kDisplayFlagSecure
                                    : 0,
                                playbackSessionID);
                    }
                }

                finishPlay();

                if (mState == ABOUT_TO_PLAY) {
                    mState = PLAYING;
                }
            } else if (what == PlaybackSession::kWhatSessionDestroyed) {
                disconnectClient2();
            } else {
                CHECK_EQ(what, PlaybackSession::kWhatBinaryData);

                int32_t channel;
                CHECK(msg->findInt32("channel", &channel));

                sp<ABuffer> data;
                CHECK(msg->findBuffer("data", &data));

                CHECK_LE(channel, 0xff);
                CHECK_LE(data->size(), 0xffffu);

                int32_t sessionID;
                CHECK(msg->findInt32("sessionID", &sessionID));

                char header[4];
                header[0] = '$';
                header[1] = channel;
                header[2] = data->size() >> 8;
                header[3] = data->size() & 0xff;

                mNetSession->sendRequest(
                        sessionID, header, sizeof(header));

                mNetSession->sendRequest(
                        sessionID, data->data(), data->size());
            }
            break;
        }

        case kWhatKeepAlive:
        {
            int32_t sessionID;
            CHECK(msg->findInt32("sessionID", &sessionID));

            if (mClientSessionID != sessionID) {
                // Obsolete event, client is already gone.
                break;
            }

void DashPlayer::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<ABuffer> buffer;
    CHECK(msg->findBuffer("buffer", &buffer));

    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);
        int64_t audioTimeUs;
        (buffer->meta())->findInt64("timeUs", &audioTimeUs);
        if ((mHasVideo && mIsFirstVideoframeReceived)
            || !mHasVideo){
        postDrainAudioQueue();
            return;
        }
        else
        {
          mPendingPostAudioDrains = true;
          DPR_MSG_HIGH("Not rendering Audio Sample with TS: %lld  as Video frame is not decoded", audioTimeUs);
        }
    } else {
        mVideoQueue.push_back(entry);
        int64_t videoTimeUs;
        (buffer->meta())->findInt64("timeUs", &videoTimeUs);
        if (!mIsFirstVideoframeReceived) {
            mIsFirstVideoframeReceived = true;
            DPR_MSG_HIGH("Received first video Sample with TS: %lld", videoTimeUs);
            if (mPendingPostAudioDrains) {
                mPendingPostAudioDrains = false;
                postDrainAudioQueue();
            }
        }
        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;

    DPR_MSG_LOW("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 Converter::onMessageReceived(const sp<AMessage> &msg) {
    switch (msg->what()) {
        case kWhatMediaPullerNotify:
        {
            int32_t what;
            CHECK(msg->findInt32("what", &what));

            if (!mIsPCMAudio && mEncoder == NULL) {
                ALOGV("got msg '%s' after encoder shutdown.",
                      msg->debugString().c_str());

                if (what == MediaPuller::kWhatAccessUnit) {
                    sp<ABuffer> accessUnit;
                    CHECK(msg->findBuffer("accessUnit", &accessUnit));

                    accessUnit->setMediaBufferBase(NULL);
                }
                break;
            }

            if (what == MediaPuller::kWhatEOS) {
                mInputBufferQueue.push_back(NULL);

                feedEncoderInputBuffers();

                scheduleDoMoreWork();
            } else {
                CHECK_EQ(what, MediaPuller::kWhatAccessUnit);

                sp<ABuffer> accessUnit;
                CHECK(msg->findBuffer("accessUnit", &accessUnit));

                if (mNumFramesToDrop > 0 || mEncodingSuspended) {
                    if (mNumFramesToDrop > 0) {
                        --mNumFramesToDrop;
                        ALOGI("dropping frame.");
                    }

                    accessUnit->setMediaBufferBase(NULL);
                    break;
                }

#if 0
                MediaBuffer *mbuf =
                    (MediaBuffer *)(accessUnit->getMediaBufferBase());
                if (mbuf != NULL) {
                    ALOGI("queueing mbuf %p", mbuf);
                    mbuf->release();
                }
#endif

#if ENABLE_SILENCE_DETECTION
                if (!mIsVideo) {
                    if (IsSilence(accessUnit)) {
                        if (mInSilentMode) {
                            break;
                        }

                        int64_t nowUs = ALooper::GetNowUs();

                        if (mFirstSilentFrameUs < 0ll) {
                            mFirstSilentFrameUs = nowUs;
                        } else if (nowUs >= mFirstSilentFrameUs + 10000000ll) {
                            mInSilentMode = true;
                            ALOGI("audio in silent mode now.");
                            break;
                        }
                    } else {
                        if (mInSilentMode) {
                            ALOGI("audio no longer in silent mode.");
                        }
                        mInSilentMode = false;
                        mFirstSilentFrameUs = -1ll;
                    }
                }
#endif

                mInputBufferQueue.push_back(accessUnit);

                feedEncoderInputBuffers();

                scheduleDoMoreWork();
            }
            break;
        }

        case kWhatEncoderActivity:
        {
#if 0
            int64_t whenUs;
            if (msg->findInt64("whenUs", &whenUs)) {
                int64_t nowUs = ALooper::GetNowUs();
                ALOGI("[%s] kWhatEncoderActivity after %lld us",
                      mIsVideo ? "video" : "audio", nowUs - whenUs);
            }
#endif

            mDoMoreWorkPending = false;

            if (mEncoder == NULL) {
//.........这里部分代码省略.........