From 7b5eb023f8d87cca6d830ae6c11c6aadbe02aca8 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Wed, 17 Dec 2008 18:05:43 -0800 Subject: Code drop from //branches/cupcake/...@124589 --- .../MetadataRetrieverClient.cpp | 250 +++++++++++++++++++++ 1 file changed, 250 insertions(+) create mode 100644 media/libmediaplayerservice/MetadataRetrieverClient.cpp (limited to 'media/libmediaplayerservice/MetadataRetrieverClient.cpp') diff --git a/media/libmediaplayerservice/MetadataRetrieverClient.cpp b/media/libmediaplayerservice/MetadataRetrieverClient.cpp new file mode 100644 index 0000000..a320bd5 --- /dev/null +++ b/media/libmediaplayerservice/MetadataRetrieverClient.cpp @@ -0,0 +1,250 @@ +/* +** +** 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 + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "MetadataRetrieverClient.h" + + +namespace android { + +MetadataRetrieverClient::MetadataRetrieverClient(pid_t pid) +{ + LOGV("MetadataRetrieverClient constructor pid(%d)", pid); + mPid = pid; + mThumbnailDealer = NULL; + mAlbumArtDealer = NULL; + mThumbnail = NULL; + mAlbumArt = NULL; + + mRetriever = new PVMetadataRetriever(); + if (mRetriever == NULL) { + LOGE("failed to initialize the retriever"); + } +} + +MetadataRetrieverClient::~MetadataRetrieverClient() +{ + LOGV("MetadataRetrieverClient destructor"); + disconnect(); +} + +status_t MetadataRetrieverClient::dump(int fd, const Vector& args) const +{ + const size_t SIZE = 256; + char buffer[SIZE]; + String8 result; + result.append(" MetadataRetrieverClient\n"); + snprintf(buffer, 255, " pid(%d)\n", mPid); + 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(); + IPCThreadState::self()->flushCommands(); +} + +status_t MetadataRetrieverClient::setDataSource(const char *url) +{ + LOGV("setDataSource(%s)", url); + Mutex::Autolock lock(mLock); + if (url == NULL) { + return UNKNOWN_ERROR; + } + if (mRetriever == NULL) { + LOGE("retriever is not initialized"); + return NO_INIT; + } + return mRetriever->setDataSource(url); +} + +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); + if (mRetriever == NULL) { + LOGE("retriever is not initialized"); + ::close(fd); + return NO_INIT; + } + + struct stat sb; + int ret = fstat(fd, &sb); + if (ret != 0) { + LOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno)); + return UNKNOWN_ERROR; + } + 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 UNKNOWN_ERROR; + } + if (offset + length > sb.st_size) { + length = sb.st_size - offset; + LOGE("calculated length = %lld", length); + } + status_t status = mRetriever->setDataSource(fd, offset, length); + ::close(fd); + return status; +} + +status_t MetadataRetrieverClient::setMode(int mode) +{ + LOGV("setMode"); + Mutex::Autolock lock(mLock); + if (mRetriever == NULL) { + LOGE("retriever is not initialized"); + return NO_INIT; + } + return mRetriever->setMode(mode); +} + +status_t MetadataRetrieverClient::getMode(int* mode) const +{ + LOGV("getMode"); + Mutex::Autolock lock(mLock); + if (mRetriever == NULL) { + LOGE("retriever is not initialized"); + return NO_INIT; + } + return mRetriever->getMode(mode); +} + +sp MetadataRetrieverClient::captureFrame() +{ + LOGV("captureFrame"); + Mutex::Autolock lock(mLock); + 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(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 MetadataRetrieverClient::extractAlbumArt() +{ + LOGV("extractAlbumArt"); + Mutex::Autolock lock(mLock); + 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(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; + } + return mRetriever->extractMetadata(keyCode); +} + +}; // namespace android -- cgit v1.1