blob: 348957f7dcd00cd978d5bdbb191577b18da78df8 [file] [log] [blame]
/*
**
** 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 <dirent.h>
#include <unistd.h>
#include <string.h>
#include <cutils/atomic.h>
#include <cutils/properties.h>
#include <binder/MemoryBase.h>
#include <binder/MemoryHeapBase.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <media/MediaMetadataRetrieverInterface.h>
#include <media/MediaPlayerInterface.h>
#include <private/media/VideoFrame.h>
#include "MidiMetadataRetriever.h"
#include "MetadataRetrieverClient.h"
#include "StagefrightMetadataRetriever.h"
#include "MediaPlayerFactory.h"
namespace android {
MetadataRetrieverClient::MetadataRetrieverClient(pid_t pid)
{
ALOGV("MetadataRetrieverClient constructor pid(%d)", pid);
mPid = pid;
mThumbnail = NULL;
mAlbumArt = NULL;
mRetriever = NULL;
}
MetadataRetrieverClient::~MetadataRetrieverClient()
{
ALOGV("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)\n", mPid);
result.append(buffer);
write(fd, result.string(), result.size());
write(fd, "\n", 1);
return NO_ERROR;
}
void MetadataRetrieverClient::disconnect()
{
ALOGV("disconnect from pid %d", mPid);
Mutex::Autolock lock(mLock);
mRetriever.clear();
mThumbnail.clear();
mAlbumArt.clear();
IPCThreadState::self()->flushCommands();
}
static sp<MediaMetadataRetrieverBase> createRetriever(player_type playerType)
{
sp<MediaMetadataRetrieverBase> p;
switch (playerType) {
case STAGEFRIGHT_PLAYER:
case NU_PLAYER:
{
p = new StagefrightMetadataRetriever;
break;
}
case SONIVOX_PLAYER:
ALOGV("create midi metadata retriever");
p = new MidiMetadataRetriever();
break;
default:
// TODO:
// support for TEST_PLAYER
ALOGE("player type %d is not supported", playerType);
break;
}
if (p == NULL) {
ALOGE("failed to create a retriever object");
}
return p;
}
status_t MetadataRetrieverClient::setDataSource(
const char *url, const KeyedVector<String8, String8> *headers)
{
ALOGV("setDataSource(%s)", url);
Mutex::Autolock lock(mLock);
if (url == NULL) {
return UNKNOWN_ERROR;
}
// When asking the MediaPlayerFactory subsystem to choose a media player for
// a given URL, a pointer to an outer IMediaPlayer can be passed to the
// factory system to be taken into consideration along with the URL. In the
// case of choosing an instance of a MediaPlayerBase for a
// MetadataRetrieverClient, there is no outer IMediaPlayer which will
// eventually encapsulate the result of this selection. In this case, just
// pass NULL to getPlayerType to indicate that there is no outer
// IMediaPlayer to consider during selection.
player_type playerType =
MediaPlayerFactory::getPlayerType(NULL /* client */, url);
ALOGV("player type = %d", playerType);
sp<MediaMetadataRetrieverBase> p = createRetriever(playerType);
if (p == NULL) return NO_INIT;
status_t ret = p->setDataSource(url, headers);
if (ret == NO_ERROR) mRetriever = p;
return ret;
}
status_t MetadataRetrieverClient::setDataSource(int fd, int64_t offset, int64_t length)
{
ALOGV("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) {
ALOGE("fstat(%d) failed: %d, %s", fd, ret, strerror(errno));
return BAD_VALUE;
}
ALOGV("st_dev = %llu", sb.st_dev);
ALOGV("st_mode = %u", sb.st_mode);
ALOGV("st_uid = %lu", sb.st_uid);
ALOGV("st_gid = %lu", sb.st_gid);
ALOGV("st_size = %llu", sb.st_size);
if (offset >= sb.st_size) {
ALOGE("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;
ALOGV("calculated length = %lld", length);
}
player_type playerType =
MediaPlayerFactory::getPlayerType(NULL /* client */,
fd,
offset,
length);
ALOGV("player type = %d", playerType);
sp<MediaMetadataRetrieverBase> p = createRetriever(playerType);
if (p == NULL) {
::close(fd);
return NO_INIT;
}
status_t status = p->setDataSource(fd, offset, length);
if (status == NO_ERROR) mRetriever = p;
::close(fd);
return status;
}
sp<IMemory> MetadataRetrieverClient::getFrameAtTime(int64_t timeUs, int option)
{
ALOGV("getFrameAtTime: time(%lld us) option(%d)", timeUs, option);
Mutex::Autolock lock(mLock);
mThumbnail.clear();
if (mRetriever == NULL) {
ALOGE("retriever is not initialized");
return NULL;
}
VideoFrame *frame = mRetriever->getFrameAtTime(timeUs, option);
if (frame == NULL) {
ALOGE("failed to capture a video frame");
return NULL;
}
size_t size = sizeof(VideoFrame) + frame->mSize;
sp<MemoryHeapBase> heap = new MemoryHeapBase(size, 0, "MetadataRetrieverClient");
if (heap == NULL) {
ALOGE("failed to create MemoryDealer");
delete frame;
return NULL;
}
mThumbnail = new MemoryBase(heap, 0, size);
if (mThumbnail == NULL) {
ALOGE("not enough memory for VideoFrame size=%u", size);
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->mRotationAngle = frame->mRotationAngle;
ALOGV("rotation: %d", frameCopy->mRotationAngle);
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()
{
ALOGV("extractAlbumArt");
Mutex::Autolock lock(mLock);
mAlbumArt.clear();
if (mRetriever == NULL) {
ALOGE("retriever is not initialized");
return NULL;
}
MediaAlbumArt *albumArt = mRetriever->extractAlbumArt();
if (albumArt == NULL) {
ALOGE("failed to extract an album art");
return NULL;
}
size_t size = sizeof(MediaAlbumArt) + albumArt->mSize;
sp<MemoryHeapBase> heap = new MemoryHeapBase(size, 0, "MetadataRetrieverClient");
if (heap == NULL) {
ALOGE("failed to create MemoryDealer object");
delete albumArt;
return NULL;
}
mAlbumArt = new MemoryBase(heap, 0, size);
if (mAlbumArt == NULL) {
ALOGE("not enough memory for MediaAlbumArt size=%u", size);
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)
{
ALOGV("extractMetadata");
Mutex::Autolock lock(mLock);
if (mRetriever == NULL) {
ALOGE("retriever is not initialized");
return NULL;
}
return mRetriever->extractMetadata(keyCode);
}
}; // namespace android