| /* |
| ** |
| ** Copyright (C) 2008 The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "MetadataRetrieverClient" |
| #include <utils/Log.h> |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/resource.h> |
| #include <dirent.h> |
| #include <unistd.h> |
| |
| #include <string.h> |
| #include <cutils/atomic.h> |
| #include <binder/MemoryDealer.h> |
| #include <android_runtime/ActivityManager.h> |
| #include <binder/IPCThreadState.h> |
| #include <binder/IServiceManager.h> |
| #include <media/MediaMetadataRetrieverInterface.h> |
| #include <media/MediaPlayerInterface.h> |
| #include <media/PVMetadataRetriever.h> |
| #include <private/media/VideoFrame.h> |
| #include "VorbisMetadataRetriever.h" |
| #include "MidiMetadataRetriever.h" |
| #include "MetadataRetrieverClient.h" |
| |
| /* desktop Linux needs a little help with gettid() */ |
| #if defined(HAVE_GETTID) && !defined(HAVE_ANDROID_OS) |
| #define __KERNEL__ |
| # include <linux/unistd.h> |
| #ifdef _syscall0 |
| _syscall0(pid_t,gettid) |
| #else |
| pid_t gettid() { return syscall(__NR_gettid);} |
| #endif |
| #undef __KERNEL__ |
| #endif |
| |
| namespace android { |
| |
| extern player_type getPlayerType(const char* url); |
| extern player_type getPlayerType(int fd, int64_t offset, int64_t length); |
| |
| MetadataRetrieverClient::MetadataRetrieverClient(pid_t pid) |
| { |
| LOGV("MetadataRetrieverClient constructor pid(%d)", pid); |
| mPid = pid; |
| mThumbnailDealer = NULL; |
| mAlbumArtDealer = NULL; |
| mThumbnail = NULL; |
| mAlbumArt = NULL; |
| mRetriever = NULL; |
| mMode = METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL; |
| } |
| |
| MetadataRetrieverClient::~MetadataRetrieverClient() |
| { |
| LOGV("MetadataRetrieverClient destructor"); |
| disconnect(); |
| } |
| |
| status_t MetadataRetrieverClient::dump(int fd, const Vector<String16>& args) const |
| { |
| const size_t SIZE = 256; |
| char buffer[SIZE]; |
| String8 result; |
| result.append(" MetadataRetrieverClient\n"); |
| snprintf(buffer, 255, " pid(%d) mode(%d)\n", mPid, mMode); |
| result.append(buffer); |
| write(fd, result.string(), result.size()); |
| write(fd, "\n", 1); |
| return NO_ERROR; |
| } |
| |
| void MetadataRetrieverClient::disconnect() |
| { |
| LOGV("disconnect from pid %d", mPid); |
| Mutex::Autolock lock(mLock); |
| mRetriever.clear(); |
| mThumbnailDealer.clear(); |
| mAlbumArtDealer.clear(); |
| mThumbnail.clear(); |
| mAlbumArt.clear(); |
| mMode = METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL; |
| IPCThreadState::self()->flushCommands(); |
| } |
| |
| static sp<MediaMetadataRetrieverBase> createRetriever(player_type playerType) |
| { |
| sp<MediaMetadataRetrieverBase> p; |
| switch (playerType) { |
| #ifndef NO_OPENCORE |
| case PV_PLAYER: |
| LOGV("create pv metadata retriever"); |
| p = new PVMetadataRetriever(); |
| break; |
| #endif |
| case VORBIS_PLAYER: |
| LOGV("create vorbis metadata retriever"); |
| p = new VorbisMetadataRetriever(); |
| break; |
| case SONIVOX_PLAYER: |
| LOGV("create midi metadata retriever"); |
| p = new MidiMetadataRetriever(); |
| break; |
| default: |
| // TODO: |
| // support for STAGEFRIGHT_PLAYER and TEST_PLAYER |
| LOGE("player type %d is not supported", playerType); |
| break; |
| } |
| if (p == NULL) { |
| LOGE("failed to create a retriever object"); |
| } |
| return p; |
| } |
| |
| status_t MetadataRetrieverClient::setDataSource(const char *url) |
| { |
| LOGV("setDataSource(%s)", url); |
| Mutex::Autolock lock(mLock); |
| if (url == NULL) { |
| return UNKNOWN_ERROR; |
| } |
| player_type playerType = getPlayerType(url); |
| #if !defined(NO_OPENCORE) && defined(BUILD_WITH_FULL_STAGEFRIGHT) |
| if (playerType == STAGEFRIGHT_PLAYER) { |
| // Stagefright doesn't support metadata in this branch yet. |
| playerType = PV_PLAYER; |
| } |
| #endif |
| LOGV("player type = %d", playerType); |
| sp<MediaMetadataRetrieverBase> p = createRetriever(playerType); |
| if (p == NULL) return NO_INIT; |
| status_t ret = p->setMode(mMode); |
| if (ret == NO_ERROR) { |
| ret = p->setDataSource(url); |
| } |
| if (ret == NO_ERROR) mRetriever = p; |
| return ret; |
| } |
| |
| status_t MetadataRetrieverClient::setDataSource(int fd, int64_t offset, int64_t length) |
| { |
| LOGV("setDataSource fd=%d, offset=%lld, length=%lld", fd, offset, length); |
| Mutex::Autolock lock(mLock); |
| struct stat sb; |
| int ret = fstat(fd, &sb); |
| if (ret != 0) { |
| LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); |
| return BAD_VALUE; |
| } |
| LOGV("st_dev = %llu", sb.st_dev); |
| LOGV("st_mode = %u", sb.st_mode); |
| LOGV("st_uid = %lu", sb.st_uid); |
| LOGV("st_gid = %lu", sb.st_gid); |
| LOGV("st_size = %llu", sb.st_size); |
| |
| if (offset >= sb.st_size) { |
| LOGE("offset (%lld) bigger than file size (%llu)", offset, sb.st_size); |
| ::close(fd); |
| return BAD_VALUE; |
| } |
| if (offset + length > sb.st_size) { |
| length = sb.st_size - offset; |
| LOGV("calculated length = %lld", length); |
| } |
| |
| player_type playerType = getPlayerType(fd, offset, length); |
| #if !defined(NO_OPENCORE) && defined(BUILD_WITH_FULL_STAGEFRIGHT) |
| if (playerType == STAGEFRIGHT_PLAYER) { |
| // Stagefright doesn't support metadata in this branch yet. |
| playerType = PV_PLAYER; |
| } |
| #endif |
| LOGV("player type = %d", playerType); |
| sp<MediaMetadataRetrieverBase> p = createRetriever(playerType); |
| if (p == NULL) { |
| ::close(fd); |
| return NO_INIT; |
| } |
| status_t status = p->setMode(mMode); |
| if (status == NO_ERROR) { |
| p->setDataSource(fd, offset, length); |
| } |
| if (status == NO_ERROR) mRetriever = p; |
| ::close(fd); |
| return status; |
| } |
| |
| status_t MetadataRetrieverClient::setMode(int mode) |
| { |
| LOGV("setMode"); |
| Mutex::Autolock lock(mLock); |
| if (mode < METADATA_MODE_NOOP || |
| mode > METADATA_MODE_FRAME_CAPTURE_AND_METADATA_RETRIEVAL) { |
| LOGE("invalid mode %d", mode); |
| return BAD_VALUE; |
| } |
| mMode = mode; |
| return NO_ERROR; |
| } |
| |
| status_t MetadataRetrieverClient::getMode(int* mode) const |
| { |
| LOGV("getMode"); |
| Mutex::Autolock lock(mLock); |
| |
| // TODO: |
| // This may not be necessary. |
| // If setDataSource() has not been called, return the cached value |
| // otherwise, return the value retrieved from the retriever |
| if (mRetriever == NULL) { |
| *mode = mMode; |
| } else { |
| mRetriever->getMode(mode); |
| } |
| return NO_ERROR; |
| } |
| |
| sp<IMemory> MetadataRetrieverClient::captureFrame() |
| { |
| LOGV("captureFrame"); |
| Mutex::Autolock lock(mLock); |
| Priority priority(ANDROID_PRIORITY_BACKGROUND); |
| mThumbnail.clear(); |
| mThumbnailDealer.clear(); |
| if (mRetriever == NULL) { |
| LOGE("retriever is not initialized"); |
| return NULL; |
| } |
| VideoFrame *frame = mRetriever->captureFrame(); |
| if (frame == NULL) { |
| LOGE("failed to capture a video frame"); |
| return NULL; |
| } |
| size_t size = sizeof(VideoFrame) + frame->mSize; |
| mThumbnailDealer = new MemoryDealer(size); |
| if (mThumbnailDealer == NULL) { |
| LOGE("failed to create MemoryDealer"); |
| delete frame; |
| return NULL; |
| } |
| mThumbnail = mThumbnailDealer->allocate(size); |
| if (mThumbnail == NULL) { |
| LOGE("not enough memory for VideoFrame size=%u", size); |
| mThumbnailDealer.clear(); |
| delete frame; |
| return NULL; |
| } |
| VideoFrame *frameCopy = static_cast<VideoFrame *>(mThumbnail->pointer()); |
| frameCopy->mWidth = frame->mWidth; |
| frameCopy->mHeight = frame->mHeight; |
| frameCopy->mDisplayWidth = frame->mDisplayWidth; |
| frameCopy->mDisplayHeight = frame->mDisplayHeight; |
| frameCopy->mSize = frame->mSize; |
| frameCopy->mData = (uint8_t *)frameCopy + sizeof(VideoFrame); |
| memcpy(frameCopy->mData, frame->mData, frame->mSize); |
| delete frame; // Fix memory leakage |
| return mThumbnail; |
| } |
| |
| sp<IMemory> MetadataRetrieverClient::extractAlbumArt() |
| { |
| LOGV("extractAlbumArt"); |
| Mutex::Autolock lock(mLock); |
| Priority priority(ANDROID_PRIORITY_BACKGROUND); |
| mAlbumArt.clear(); |
| mAlbumArtDealer.clear(); |
| if (mRetriever == NULL) { |
| LOGE("retriever is not initialized"); |
| return NULL; |
| } |
| MediaAlbumArt *albumArt = mRetriever->extractAlbumArt(); |
| if (albumArt == NULL) { |
| LOGE("failed to extract an album art"); |
| return NULL; |
| } |
| size_t size = sizeof(MediaAlbumArt) + albumArt->mSize; |
| mAlbumArtDealer = new MemoryDealer(size); |
| if (mAlbumArtDealer == NULL) { |
| LOGE("failed to create MemoryDealer object"); |
| delete albumArt; |
| return NULL; |
| } |
| mAlbumArt = mAlbumArtDealer->allocate(size); |
| if (mAlbumArt == NULL) { |
| LOGE("not enough memory for MediaAlbumArt size=%u", size); |
| mAlbumArtDealer.clear(); |
| delete albumArt; |
| return NULL; |
| } |
| MediaAlbumArt *albumArtCopy = static_cast<MediaAlbumArt *>(mAlbumArt->pointer()); |
| albumArtCopy->mSize = albumArt->mSize; |
| albumArtCopy->mData = (uint8_t *)albumArtCopy + sizeof(MediaAlbumArt); |
| memcpy(albumArtCopy->mData, albumArt->mData, albumArt->mSize); |
| delete albumArt; // Fix memory leakage |
| return mAlbumArt; |
| } |
| |
| const char* MetadataRetrieverClient::extractMetadata(int keyCode) |
| { |
| LOGV("extractMetadata"); |
| Mutex::Autolock lock(mLock); |
| if (mRetriever == NULL) { |
| LOGE("retriever is not initialized"); |
| return NULL; |
| } |
| Priority priority(ANDROID_PRIORITY_BACKGROUND); |
| return mRetriever->extractMetadata(keyCode); |
| } |
| |
| MetadataRetrieverClient::Priority::Priority(int newPriority) |
| { |
| mOldPriority = getpriority(PRIO_PROCESS, 0); |
| setpriority(PRIO_PROCESS, 0, newPriority); |
| } |
| |
| MetadataRetrieverClient::Priority::~Priority() |
| { |
| setpriority(PRIO_PROCESS, 0, mOldPriority); |
| } |
| |
| }; // namespace android |