C++ KeyedVector::size方法代码示例

void GPUHardware::binderDied(const wp<IBinder>& who)
{
    Mutex::Autolock _l(mLock);
    pid_t pid = mRegisteredClients.valueFor(who);
    if (pid != 0) {
        ssize_t index = mClients.indexOfKey(pid);
        if (index >= 0) {
            //LOGD("*** removing client at %d", index);
            Client& client(mClients.editValueAt(index));
            client.revokeAllHeaps(); // not really needed in theory
            mClients.removeItemsAt(index);
            if (mClients.size() == 0) {
                //LOGD("*** was last client closing everything");
                mCallback.clear();
                mAllocator.clear();
                mCurrentAllocator.clear();
                mSMIHeap.clear();
                mREGHeap.clear();
                
                // NOTE: we cannot clear the EBI heap because surfaceflinger
                // itself may be using it, since this is where surfaces
                // are allocated. if we're in the middle of compositing 
                // a surface (even if its process just died), we cannot
                // rip the heap under our feet.
                
                mOwner = NO_OWNER;
            }
        }
    }
}

static AString codecResultsToXml(const KeyedVector<AString, CodecSettings> &results) {
    AString ret;
    for (size_t i = 0; i < results.size(); ++i) {
        AString name;
        AString mime;
        if (!splitString(results.keyAt(i), " ", &name, &mime)) {
            continue;
        }
        AString codec =
                AStringPrintf("        <MediaCodec name=\"%s\" type=\"%s\" update=\"true\" >\n",
                              name.c_str(),
                              mime.c_str());
        ret.append(codec);
        const CodecSettings &settings = results.valueAt(i);
        for (size_t i = 0; i < settings.size(); ++i) {
            // WARNING: we assume all the settings are "Limit". Currently we have only one type
            // of setting in this case, which is "max-supported-instances".
            AString setting = AStringPrintf(
                    "            <Limit name=\"%s\" value=\"%s\" />\n",
                    settings.keyAt(i).c_str(),
                    settings.valueAt(i).c_str());
            ret.append(setting);
        }
        ret.append("        </MediaCodec>\n");
    }
    return ret;
}

status_t NativeInputEventSender::receiveFinishedSignals(JNIEnv* env) {
    if (kDebugDispatchCycle) {
        ALOGD("channel '%s' ~ Receiving finished signals.", getInputChannelName());
    }

    ScopedLocalRef<jobject> senderObj(env, NULL);
    bool skipCallbacks = false;
    for (;;) {
        uint32_t publishedSeq;
        bool handled;
        status_t status = mInputPublisher.receiveFinishedSignal(&publishedSeq, &handled);
        if (status) {
            if (status == WOULD_BLOCK) {
                return OK;
            }
            ALOGE("channel '%s' ~ Failed to consume finished signals.  status=%d",
                    getInputChannelName(), status);
            return status;
        }

        ssize_t index = mPublishedSeqMap.indexOfKey(publishedSeq);
        if (index >= 0) {
            uint32_t seq = mPublishedSeqMap.valueAt(index);
            mPublishedSeqMap.removeItemsAt(index);

            if (kDebugDispatchCycle) {
                ALOGD("channel '%s' ~ Received finished signal, seq=%u, handled=%s, "
                        "pendingEvents=%zu.",
                        getInputChannelName(), seq, handled ? "true" : "false",
                        mPublishedSeqMap.size());
            }

            if (!skipCallbacks) {
                if (!senderObj.get()) {
                    senderObj.reset(jniGetReferent(env, mSenderWeakGlobal));
                    if (!senderObj.get()) {
                        ALOGW("channel '%s' ~ Sender object was finalized "
                                "without being disposed.", getInputChannelName());
                        return DEAD_OBJECT;
                    }
                }

                env->CallVoidMethod(senderObj.get(),
                        gInputEventSenderClassInfo.dispatchInputEventFinished,
                        jint(seq), jboolean(handled));
                if (env->ExceptionCheck()) {
                    ALOGE("Exception dispatching finished signal.");
                    skipCallbacks = true;
                }
            }
        }
    }
}

static jobject KeyedVectorToHashMap (JNIEnv *env, KeyedVector<String8, String8> const &map) {
    jclass clazz = gFields.hashmapClassId;
    jobject hashMap = env->NewObject(clazz, gFields.hashmap.init);
    for (size_t i = 0; i < map.size(); ++i) {
        jstring jkey = env->NewStringUTF(map.keyAt(i).string());
        jstring jvalue = env->NewStringUTF(map.valueAt(i).string());
        env->CallObjectMethod(hashMap, gFields.hashmap.put, jkey, jvalue);
        env->DeleteLocalRef(jkey);
        env->DeleteLocalRef(jvalue);
    }
    return hashMap;
}

void exportResultsToXML(
        const char *fileName,
        const CodecSettings &global_results,
        const KeyedVector<AString, CodecSettings> &encoder_results,
        const KeyedVector<AString, CodecSettings> &decoder_results) {
    if (global_results.size() == 0 && encoder_results.size() == 0 && decoder_results.size() == 0) {
        return;
    }

    AString overrides;
    overrides.append(getProfilingVersionString());
    overrides.append("\n");
    overrides.append("<MediaCodecs>\n");
    if (global_results.size() > 0) {
        overrides.append("    <Settings>\n");
        overrides.append(globalResultsToXml(global_results));
        overrides.append("    </Settings>\n");
    }
    if (encoder_results.size() > 0) {
        overrides.append("    <Encoders>\n");
        overrides.append(codecResultsToXml(encoder_results));
        overrides.append("    </Encoders>\n");
    }
    if (decoder_results.size() > 0) {
        overrides.append("    <Decoders>\n");
        overrides.append(codecResultsToXml(decoder_results));
        overrides.append("    </Decoders>\n");
    }
    overrides.append("</MediaCodecs>\n");

    FILE *f = fopen(fileName, "wb");
    if (f == NULL) {
        ALOGE("Failed to open %s for writing.", fileName);
        return;
    }
    if (fwrite(overrides.c_str(), 1, overrides.size(), f) != overrides.size()) {
        ALOGE("Failed to write to %s.", fileName);
    }
    fclose(f);
}

void HeapCache::dump_heaps()
{
    Mutex::Autolock _l(mHeapCacheLock);
    int c = mHeapCache.size();
    for (int i=0 ; i<c ; i++) {
        const heap_info_t& info = mHeapCache.valueAt(i);
        BpMemoryHeap const* h(static_cast<BpMemoryHeap const *>(info.heap.get()));
        ALOGD("hey=%p, heap=%p, count=%d, (fd=%d, base=%p, size=%d)",
                mHeapCache.keyAt(i).unsafe_get(),
                info.heap.get(), info.count,
                h->mHeapId, h->mBase, h->mSize);
    }
}

static void
android_media_MediaPlayer_setDataSourceAndHeaders(
        JNIEnv *env, jobject thiz, jobject httpServiceBinderObj, jstring path,
        jobjectArray keys, jobjectArray values) {

    sp<MediaPlayer> mp = getMediaPlayer(env, thiz);
    if (mp == NULL ) {
        jniThrowException(env, "java/lang/IllegalStateException", NULL);
        return;
    }

    if (path == NULL) {
        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
        return;
    }

    const char *tmp = env->GetStringUTFChars(path, NULL);
    if (tmp == NULL) {  // Out of memory
        return;
    }
    ALOGV("setDataSource: path %s", tmp);

    String8 pathStr(tmp);
    env->ReleaseStringUTFChars(path, tmp);
    tmp = NULL;

    // We build a KeyedVector out of the key and val arrays
    KeyedVector<String8, String8> headersVector;
    if (!ConvertKeyValueArraysToKeyedVector(
            env, keys, values, &headersVector)) {
        return;
    }

    sp<IMediaHTTPService> httpService;
    if (httpServiceBinderObj != NULL) {
        sp<IBinder> binder = ibinderForJavaObject(env, httpServiceBinderObj);
        httpService = interface_cast<IMediaHTTPService>(binder);
    }

    status_t opStatus =
        mp->setDataSource(
                httpService,
                pathStr,
                headersVector.size() > 0? &headersVector : NULL);

    process_media_player_call(
            env, thiz, opStatus, "java/io/IOException",
            "setDataSource failed." );
}

status_t MPEG2TSExtractor::feedMore() {
    Mutex::Autolock autoLock(mLock);

    uint8_t packet[kTSPacketSize];
    ssize_t n = mDataSource->readAt(mOffset, packet, kTSPacketSize);

    if (n < (ssize_t)kTSPacketSize) {
        if (n >= 0) {
            mParser->signalEOS(ERROR_END_OF_STREAM);
        }
        return (n < 0) ? (status_t)n : ERROR_END_OF_STREAM;
    }

    ATSParser::SyncEvent event(mOffset);
    mOffset += n;
    status_t err = mParser->feedTSPacket(packet, kTSPacketSize, &event);
    if (event.isInit()) {
        for (size_t i = 0; i < mSourceImpls.size(); ++i) {
            if (mSourceImpls[i].get() == event.getMediaSource().get()) {
                KeyedVector<int64_t, off64_t> *syncPoints = &mSyncPoints.editItemAt(i);
                syncPoints->add(event.getTimeUs(), event.getOffset());
                // We're keeping the size of the sync points at most 5mb per a track.
                size_t size = syncPoints->size();
                if (size >= 327680) {
                    int64_t firstTimeUs = syncPoints->keyAt(0);
                    int64_t lastTimeUs = syncPoints->keyAt(size - 1);
                    if (event.getTimeUs() - firstTimeUs > lastTimeUs - event.getTimeUs()) {
                        syncPoints->removeItemsAt(0, 4096);
                    } else {
                        syncPoints->removeItemsAt(size - 4096, 4096);
                    }
                }
                break;
            }
        }
    }
    return err;
}

void generate(const KeyedVector<String8, Vector<SplitDescription> >& splits, const String8& base) {
    Vector<SplitDescription> allSplits;
    const size_t apkSplitCount = splits.size();
    for (size_t i = 0; i < apkSplitCount; i++) {
        allSplits.appendVector(splits[i]);
    }
    const SplitSelector selector(allSplits);
    KeyedVector<SplitDescription, sp<Rule> > rules(selector.getRules());

    bool first = true;
    fprintf(stdout, "[\n");
    for (size_t i = 0; i < apkSplitCount; i++) {
        if (splits.keyAt(i) == base) {
            // Skip the base.
            continue;
        }

        if (!first) {
            fprintf(stdout, ",\n");
        }
        first = false;

        sp<Rule> masterRule = new Rule();
        masterRule->op = Rule::OR_SUBRULES;
        const Vector<SplitDescription>& splitDescriptions = splits[i];
        const size_t splitDescriptionCount = splitDescriptions.size();
        for (size_t j = 0; j < splitDescriptionCount; j++) {
            masterRule->subrules.add(rules.valueFor(splitDescriptions[j]));
        }
        masterRule = Rule::simplify(masterRule);
        fprintf(stdout, "  {\n    \"path\": \"%s\",\n    \"rules\": %s\n  }",
                splits.keyAt(i).string(),
                masterRule->toJson(2).string());
    }
    fprintf(stdout, "\n]\n");
}

status_t TiffWriter::write(Output* out, StripSource** sources, size_t sourcesCount,
        Endianness end) {
    status_t ret = OK;
    EndianOutput endOut(out, end);

    if (mIfd == NULL) {
        ALOGE("%s: Tiff header is empty.", __FUNCTION__);
        return BAD_VALUE;
    }

    uint32_t totalSize = getTotalSize();

    KeyedVector<uint32_t, uint32_t> offsetVector;

    for (size_t i = 0; i < mNamedIfds.size(); ++i) {
        if (mNamedIfds[i]->uninitializedOffsets()) {
            uint32_t stripSize = mNamedIfds[i]->getStripSize();
            if (mNamedIfds[i]->setStripOffset(totalSize) != OK) {
                ALOGE("%s: Could not set strip offsets.", __FUNCTION__);
                return BAD_VALUE;
            }
            totalSize += stripSize;
            WORD_ALIGN(totalSize);
            offsetVector.add(mNamedIfds.keyAt(i), totalSize);
        }
    }

    size_t offVecSize = offsetVector.size();
    if (offVecSize != sourcesCount) {
        ALOGE("%s: Mismatch between number of IFDs with uninitialized strips (%zu) and"
                " sources (%zu).", __FUNCTION__, offVecSize, sourcesCount);
        return BAD_VALUE;
    }

    BAIL_ON_FAIL(writeFileHeader(endOut), ret);

    uint32_t offset = FILE_HEADER_SIZE;
    sp<TiffIfd> ifd = mIfd;
    while(ifd != NULL) {
        BAIL_ON_FAIL(ifd->writeData(offset, &endOut), ret);
        offset += ifd->getSize();
        ifd = ifd->getNextIfd();
    }

    if (LOG_NDEBUG == 0) {
        log();
    }

    for (size_t i = 0; i < offVecSize; ++i) {
        uint32_t ifdKey = offsetVector.keyAt(i);
        uint32_t sizeToWrite = mNamedIfds[ifdKey]->getStripSize();
        bool found = false;
        for (size_t j = 0; j < sourcesCount; ++j) {
            if (sources[j]->getIfd() == ifdKey) {
                if ((ret = sources[i]->writeToStream(endOut, sizeToWrite)) != OK) {
                    ALOGE("%s: Could not write to stream, received %d.", __FUNCTION__, ret);
                    return ret;
                }
                ZERO_TILL_WORD(&endOut, sizeToWrite, ret);
                found = true;
                break;
            }
        }
        if (!found) {
            ALOGE("%s: No stream for byte strips for IFD %u", __FUNCTION__, ifdKey);
            return BAD_VALUE;
        }
        assert(offsetVector[i] == endOut.getCurrentOffset());
    }

    return ret;
}

static int decode(
        const android::sp<android::ALooper> &looper,
        const char *path,
        bool useAudio,
        bool useVideo,
        const android::sp<android::Surface> &surface) {
    using namespace android;

    static int64_t kTimeout = 500ll;

    sp<NuMediaExtractor> extractor = new NuMediaExtractor;
    if (extractor->setDataSource(path) != OK) {
        fprintf(stderr, "unable to instantiate extractor.\n");
        return 1;
    }

    KeyedVector<size_t, CodecState> stateByTrack;

    bool haveAudio = false;
    bool haveVideo = false;
    for (size_t i = 0; i < extractor->countTracks(); ++i) {
        sp<AMessage> format;
        status_t err = extractor->getTrackFormat(i, &format);
        CHECK_EQ(err, (status_t)OK);

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

        bool isAudio = !strncasecmp(mime.c_str(), "audio/", 6);
        bool isVideo = !strncasecmp(mime.c_str(), "video/", 6);

        if (useAudio && !haveAudio && isAudio) {
            haveAudio = true;
        } else if (useVideo && !haveVideo && isVideo) {
            haveVideo = true;
        } else {
            continue;
        }

        ALOGV("selecting track %d", i);

        err = extractor->selectTrack(i);
        CHECK_EQ(err, (status_t)OK);

        CodecState *state =
            &stateByTrack.editValueAt(stateByTrack.add(i, CodecState()));

        state->mNumBytesDecoded = 0;
        state->mNumBuffersDecoded = 0;
        state->mIsAudio = isAudio;

        state->mCodec = MediaCodec::CreateByType(
                looper, mime.c_str(), false /* encoder */);

        CHECK(state->mCodec != NULL);

        err = state->mCodec->configure(
                format, isVideo ? surface : NULL,
                NULL /* crypto */,
                0 /* flags */);

        CHECK_EQ(err, (status_t)OK);

        state->mSignalledInputEOS = false;
        state->mSawOutputEOS = false;
    }

    CHECK(!stateByTrack.isEmpty());

    int64_t startTimeUs = ALooper::GetNowUs();

    for (size_t i = 0; i < stateByTrack.size(); ++i) {
        CodecState *state = &stateByTrack.editValueAt(i);

        sp<MediaCodec> codec = state->mCodec;

        CHECK_EQ((status_t)OK, codec->start());

        CHECK_EQ((status_t)OK, codec->getInputBuffers(&state->mInBuffers));
        CHECK_EQ((status_t)OK, codec->getOutputBuffers(&state->mOutBuffers));

        ALOGV("got %d input and %d output buffers",
              state->mInBuffers.size(), state->mOutBuffers.size());
    }

    bool sawInputEOS = false;

    for (;;) {
        if (!sawInputEOS) {
            size_t trackIndex;
            status_t err = extractor->getSampleTrackIndex(&trackIndex);

            if (err != OK) {
                ALOGV("saw input eos");
                sawInputEOS = true;
            } else {
                CodecState *state = &stateByTrack.editValueFor(trackIndex);

                size_t index;
                err = state->mCodec->dequeueInputBuffer(&index, kTimeout);
//.........这里部分代码省略.........