const char* extractMetadata(int keyCode)
{
Parcel data, reply;
data.writeInterfaceToken(IMediaMetadataRetriever::getInterfaceDescriptor());
#ifndef DISABLE_GROUP_SCHEDULE_HACK
sendSchedPolicy(data);
#endif
data.writeInt32(keyCode);
remote()->transact(EXTRACT_METADATA, data, &reply);
status_t ret = reply.readInt32();
if (ret != NO_ERROR) {
return NULL;
}
const char* str = reply.readCString();
if (str != NULL) {
String8 value(str);
if (mMetadata.indexOfKey(keyCode) < 0) {
mMetadata.add(keyCode, value);
} else {
mMetadata.replaceValueFor(keyCode, value);
}
return mMetadata.valueFor(keyCode).string();
} else {
return NULL;
}
}
sp<IMemory> extractAlbumArt()
{
Parcel data, reply;
data.writeInterfaceToken(IMediaMetadataRetriever::getInterfaceDescriptor());
#ifndef DISABLE_GROUP_SCHEDULE_HACK
sendSchedPolicy(data);
#endif
remote()->transact(EXTRACT_ALBUM_ART, data, &reply);
status_t ret = reply.readInt32();
if (ret != NO_ERROR) {
return NULL;
}
return interface_cast<IMemory>(reply.readStrongBinder());
}
sp<IMemory> getFrameAtTime(int64_t timeUs, int option)
{
Parcel data, reply;
data.writeInterfaceToken(IMediaMetadataRetriever::getInterfaceDescriptor());
data.writeInt64(timeUs);
data.writeInt32(option);
#ifndef DISABLE_GROUP_SCHEDULE_HACK
sendSchedPolicy(data);
#endif
remote()->transact(GET_FRAME_AT_TIME, data, &reply);
status_t ret = reply.readInt32();
if (ret != NO_ERROR) {
return NULL;
}
return interface_cast<IMemory>(reply.readStrongBinder());
}
