314 lines
10 KiB
C++
314 lines
10 KiB
C++
/*
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**
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** Copyright (C) 2008 The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "MetadataRetrieverClient"
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#include <utils/Log.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <string.h>
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#include <cutils/atomic.h>
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#include <cutils/properties.h>
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#include <binder/MemoryBase.h>
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#include <binder/MemoryHeapBase.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <media/DataSource.h>
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#include <media/IMediaHTTPService.h>
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#include <media/MediaMetadataRetrieverInterface.h>
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#include <media/MediaPlayerInterface.h>
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#include <media/stagefright/InterfaceUtils.h>
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#include <media/stagefright/Utils.h>
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#include <media/stagefright/FoundationUtils.h>
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#include <private/media/VideoFrame.h>
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#include "MetadataRetrieverClient.h"
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#include "StagefrightMetadataRetriever.h"
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#include "MediaPlayerFactory.h"
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namespace android {
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MetadataRetrieverClient::MetadataRetrieverClient(pid_t pid)
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{
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ALOGV("MetadataRetrieverClient constructor pid(%d)", pid);
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mPid = pid;
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mAlbumArt = NULL;
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mRetriever = NULL;
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}
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MetadataRetrieverClient::~MetadataRetrieverClient()
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{
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ALOGV("MetadataRetrieverClient destructor");
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disconnect();
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}
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status_t MetadataRetrieverClient::dump(int fd, const Vector<String16>& /*args*/)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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result.append(" MetadataRetrieverClient\n");
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snprintf(buffer, 255, " pid(%d)\n", mPid);
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result.append(buffer);
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write(fd, result.string(), result.size());
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write(fd, "\n", 1);
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return NO_ERROR;
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}
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void MetadataRetrieverClient::disconnect()
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{
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ALOGV("disconnect from pid %d", mPid);
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Mutex::Autolock lock(mLock);
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mRetriever.clear();
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mAlbumArt.clear();
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IPCThreadState::self()->flushCommands();
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}
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static sp<MediaMetadataRetrieverBase> createRetriever(player_type playerType)
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{
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sp<MediaMetadataRetrieverBase> p;
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switch (playerType) {
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case STAGEFRIGHT_PLAYER:
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case NU_PLAYER:
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{
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p = new StagefrightMetadataRetriever;
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break;
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}
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default:
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// TODO:
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// support for TEST_PLAYER
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ALOGE("player type %d is not supported", playerType);
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break;
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}
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if (p == NULL) {
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ALOGE("failed to create a retriever object");
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}
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return p;
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}
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status_t MetadataRetrieverClient::setDataSource(
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const sp<IMediaHTTPService> &httpService,
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const char *url,
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const KeyedVector<String8, String8> *headers)
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{
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ALOGV("setDataSource(%s)", url);
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Mutex::Autolock lock(mLock);
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if (url == NULL) {
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return UNKNOWN_ERROR;
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}
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// When asking the MediaPlayerFactory subsystem to choose a media player for
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// a given URL, a pointer to an outer IMediaPlayer can be passed to the
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// factory system to be taken into consideration along with the URL. In the
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// case of choosing an instance of a MediaPlayerBase for a
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// MetadataRetrieverClient, there is no outer IMediaPlayer which will
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// eventually encapsulate the result of this selection. In this case, just
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// pass NULL to getPlayerType to indicate that there is no outer
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// IMediaPlayer to consider during selection.
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player_type playerType =
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MediaPlayerFactory::getPlayerType(NULL /* client */, url);
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ALOGV("player type = %d", playerType);
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sp<MediaMetadataRetrieverBase> p = createRetriever(playerType);
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if (p == NULL) return NO_INIT;
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status_t ret = p->setDataSource(httpService, url, headers);
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if (ret == NO_ERROR) mRetriever = p;
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return ret;
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}
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status_t MetadataRetrieverClient::setDataSource(int fd, int64_t offset, int64_t length)
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{
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ALOGV("setDataSource fd=%d (%s), offset=%lld, length=%lld",
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fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
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Mutex::Autolock lock(mLock);
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struct stat sb;
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int ret = fstat(fd, &sb);
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if (ret != 0) {
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ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
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return BAD_VALUE;
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}
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ALOGV("st_dev = %llu", static_cast<unsigned long long>(sb.st_dev));
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ALOGV("st_mode = %u", sb.st_mode);
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ALOGV("st_uid = %lu", static_cast<unsigned long>(sb.st_uid));
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ALOGV("st_gid = %lu", static_cast<unsigned long>(sb.st_gid));
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ALOGV("st_size = %llu", static_cast<unsigned long long>(sb.st_size));
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if (offset >= sb.st_size) {
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ALOGE("offset (%lld) bigger than file size (%llu)",
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(long long)offset, (unsigned long long)sb.st_size);
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return BAD_VALUE;
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}
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if (offset + length > sb.st_size) {
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length = sb.st_size - offset;
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ALOGV("calculated length = %lld", (long long)length);
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}
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player_type playerType =
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MediaPlayerFactory::getPlayerType(NULL /* client */,
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fd,
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offset,
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length);
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ALOGV("player type = %d", playerType);
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sp<MediaMetadataRetrieverBase> p = createRetriever(playerType);
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if (p == NULL) {
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return NO_INIT;
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}
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status_t status = p->setDataSource(fd, offset, length);
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if (status == NO_ERROR) mRetriever = p;
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return status;
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}
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status_t MetadataRetrieverClient::setDataSource(
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const sp<IDataSource>& source, const char *mime)
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{
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ALOGV("setDataSource(IDataSource)");
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Mutex::Autolock lock(mLock);
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sp<DataSource> dataSource = CreateDataSourceFromIDataSource(source);
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player_type playerType =
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MediaPlayerFactory::getPlayerType(NULL /* client */, dataSource);
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ALOGV("player type = %d", playerType);
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sp<MediaMetadataRetrieverBase> p = createRetriever(playerType);
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if (p == NULL) return NO_INIT;
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status_t ret = p->setDataSource(dataSource, mime);
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if (ret == NO_ERROR) mRetriever = p;
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return ret;
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}
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Mutex MetadataRetrieverClient::sLock;
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sp<IMemory> MetadataRetrieverClient::getFrameAtTime(
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int64_t timeUs, int option, int colorFormat, bool metaOnly)
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{
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ALOGV("getFrameAtTime: time(%lld us) option(%d) colorFormat(%d), metaOnly(%d)",
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(long long)timeUs, option, colorFormat, metaOnly);
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Mutex::Autolock lock(mLock);
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Mutex::Autolock glock(sLock);
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if (mRetriever == NULL) {
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ALOGE("retriever is not initialized");
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return NULL;
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}
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sp<IMemory> frame = mRetriever->getFrameAtTime(timeUs, option, colorFormat, metaOnly);
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if (frame == NULL) {
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ALOGE("failed to capture a video frame");
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return NULL;
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}
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return frame;
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}
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sp<IMemory> MetadataRetrieverClient::getImageAtIndex(
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int index, int colorFormat, bool metaOnly, bool thumbnail) {
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ALOGV("getImageAtIndex: index(%d) colorFormat(%d), metaOnly(%d) thumbnail(%d)",
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index, colorFormat, metaOnly, thumbnail);
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Mutex::Autolock lock(mLock);
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Mutex::Autolock glock(sLock);
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if (mRetriever == NULL) {
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ALOGE("retriever is not initialized");
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return NULL;
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}
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sp<IMemory> frame = mRetriever->getImageAtIndex(index, colorFormat, metaOnly, thumbnail);
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if (frame == NULL) {
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ALOGE("failed to extract image");
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return NULL;
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}
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return frame;
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}
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sp<IMemory> MetadataRetrieverClient::getImageRectAtIndex(
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int index, int colorFormat, int left, int top, int right, int bottom) {
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ALOGV("getImageRectAtIndex: index(%d) colorFormat(%d), rect {%d, %d, %d, %d}",
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index, colorFormat, left, top, right, bottom);
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Mutex::Autolock lock(mLock);
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Mutex::Autolock glock(sLock);
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if (mRetriever == NULL) {
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ALOGE("retriever is not initialized");
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return NULL;
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}
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sp<IMemory> frame = mRetriever->getImageRectAtIndex(
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index, colorFormat, left, top, right, bottom);
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if (frame == NULL) {
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ALOGE("failed to extract image at index %d", index);
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}
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return frame;
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}
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sp<IMemory> MetadataRetrieverClient::getFrameAtIndex(
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int index, int colorFormat, bool metaOnly) {
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ALOGV("getFrameAtIndex: index(%d), colorFormat(%d), metaOnly(%d)",
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index, colorFormat, metaOnly);
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Mutex::Autolock lock(mLock);
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Mutex::Autolock glock(sLock);
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if (mRetriever == NULL) {
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ALOGE("retriever is not initialized");
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return NULL;
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}
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sp<IMemory> frame = mRetriever->getFrameAtIndex(index, colorFormat, metaOnly);
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if (frame == NULL) {
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ALOGE("failed to extract frame at index %d", index);
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}
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return frame;
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}
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sp<IMemory> MetadataRetrieverClient::extractAlbumArt()
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{
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ALOGV("extractAlbumArt");
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Mutex::Autolock lock(mLock);
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mAlbumArt.clear();
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if (mRetriever == NULL) {
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ALOGE("retriever is not initialized");
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return NULL;
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}
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MediaAlbumArt *albumArt = mRetriever->extractAlbumArt();
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if (albumArt == NULL) {
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ALOGE("failed to extract an album art");
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return NULL;
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}
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size_t size = sizeof(MediaAlbumArt) + albumArt->size();
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sp<MemoryHeapBase> heap = new MemoryHeapBase(size, 0, "MetadataRetrieverClient");
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if (heap == NULL) {
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ALOGE("failed to create MemoryDealer object");
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delete albumArt;
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return NULL;
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}
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mAlbumArt = new MemoryBase(heap, 0, size);
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if (mAlbumArt == NULL) {
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ALOGE("not enough memory for MediaAlbumArt size=%zu", size);
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delete albumArt;
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return NULL;
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}
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MediaAlbumArt::init((MediaAlbumArt *) mAlbumArt->unsecurePointer(),
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albumArt->size(), albumArt->data());
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delete albumArt; // We've taken our copy.
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return mAlbumArt;
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}
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const char* MetadataRetrieverClient::extractMetadata(int keyCode)
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{
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ALOGV("extractMetadata");
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Mutex::Autolock lock(mLock);
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if (mRetriever == NULL) {
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ALOGE("retriever is not initialized");
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return NULL;
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}
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return mRetriever->extractMetadata(keyCode);
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}
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}; // namespace android
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