| /* |
| ** |
| ** Copyright 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. |
| */ |
| |
| #include <arpa/inet.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <binder/Parcel.h> |
| |
| #include <media/IMediaPlayer.h> |
| #include <media/IStreamSource.h> |
| |
| #include <gui/ISurfaceTexture.h> |
| #include <utils/String8.h> |
| |
| namespace android { |
| |
| enum { |
| DISCONNECT = IBinder::FIRST_CALL_TRANSACTION, |
| SET_DATA_SOURCE_URL, |
| SET_DATA_SOURCE_FD, |
| SET_DATA_SOURCE_STREAM, |
| PREPARE_ASYNC, |
| START, |
| STOP, |
| IS_PLAYING, |
| PAUSE, |
| SEEK_TO, |
| GET_CURRENT_POSITION, |
| GET_DURATION, |
| RESET, |
| SET_AUDIO_STREAM_TYPE, |
| SET_LOOPING, |
| SET_VOLUME, |
| INVOKE, |
| SET_METADATA_FILTER, |
| GET_METADATA, |
| SET_AUX_EFFECT_SEND_LEVEL, |
| ATTACH_AUX_EFFECT, |
| SET_VIDEO_SURFACETEXTURE, |
| SET_PARAMETER, |
| GET_PARAMETER, |
| SET_RETRANSMIT_ENDPOINT, |
| SET_NEXT_PLAYER, |
| }; |
| |
| class BpMediaPlayer: public BpInterface<IMediaPlayer> |
| { |
| public: |
| BpMediaPlayer(const sp<IBinder>& impl) |
| : BpInterface<IMediaPlayer>(impl) |
| { |
| } |
| |
| // disconnect from media player service |
| void disconnect() |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(DISCONNECT, data, &reply); |
| } |
| |
| status_t setDataSource(const char* url, |
| const KeyedVector<String8, String8>* headers) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeCString(url); |
| if (headers == NULL) { |
| data.writeInt32(0); |
| } else { |
| // serialize the headers |
| data.writeInt32(headers->size()); |
| for (size_t i = 0; i < headers->size(); ++i) { |
| data.writeString8(headers->keyAt(i)); |
| data.writeString8(headers->valueAt(i)); |
| } |
| } |
| remote()->transact(SET_DATA_SOURCE_URL, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t setDataSource(int fd, int64_t offset, int64_t length) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeFileDescriptor(fd); |
| data.writeInt64(offset); |
| data.writeInt64(length); |
| remote()->transact(SET_DATA_SOURCE_FD, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t setDataSource(const sp<IStreamSource> &source) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeStrongBinder(source->asBinder()); |
| remote()->transact(SET_DATA_SOURCE_STREAM, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| // pass the buffered ISurfaceTexture to the media player service |
| status_t setVideoSurfaceTexture(const sp<ISurfaceTexture>& surfaceTexture) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| sp<IBinder> b(surfaceTexture->asBinder()); |
| data.writeStrongBinder(b); |
| remote()->transact(SET_VIDEO_SURFACETEXTURE, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t prepareAsync() |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(PREPARE_ASYNC, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t start() |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(START, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t stop() |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(STOP, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t isPlaying(bool* state) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(IS_PLAYING, data, &reply); |
| *state = reply.readInt32(); |
| return reply.readInt32(); |
| } |
| |
| status_t pause() |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(PAUSE, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t seekTo(int msec) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeInt32(msec); |
| remote()->transact(SEEK_TO, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t getCurrentPosition(int* msec) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(GET_CURRENT_POSITION, data, &reply); |
| *msec = reply.readInt32(); |
| return reply.readInt32(); |
| } |
| |
| status_t getDuration(int* msec) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(GET_DURATION, data, &reply); |
| *msec = reply.readInt32(); |
| return reply.readInt32(); |
| } |
| |
| status_t reset() |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| remote()->transact(RESET, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t setAudioStreamType(audio_stream_type_t stream) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeInt32((int32_t) stream); |
| remote()->transact(SET_AUDIO_STREAM_TYPE, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t setLooping(int loop) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeInt32(loop); |
| remote()->transact(SET_LOOPING, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t setVolume(float leftVolume, float rightVolume) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeFloat(leftVolume); |
| data.writeFloat(rightVolume); |
| remote()->transact(SET_VOLUME, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t invoke(const Parcel& request, Parcel *reply) |
| { |
| // Avoid doing any extra copy. The interface descriptor should |
| // have been set by MediaPlayer.java. |
| return remote()->transact(INVOKE, request, reply); |
| } |
| |
| status_t setMetadataFilter(const Parcel& request) |
| { |
| Parcel reply; |
| // Avoid doing any extra copy of the request. The interface |
| // descriptor should have been set by MediaPlayer.java. |
| remote()->transact(SET_METADATA_FILTER, request, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t getMetadata(bool update_only, bool apply_filter, Parcel *reply) |
| { |
| Parcel request; |
| request.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| // TODO: Burning 2 ints for 2 boolean. Should probably use flags in an int here. |
| request.writeInt32(update_only); |
| request.writeInt32(apply_filter); |
| remote()->transact(GET_METADATA, request, reply); |
| return reply->readInt32(); |
| } |
| |
| status_t setAuxEffectSendLevel(float level) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeFloat(level); |
| remote()->transact(SET_AUX_EFFECT_SEND_LEVEL, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t attachAuxEffect(int effectId) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeInt32(effectId); |
| remote()->transact(ATTACH_AUX_EFFECT, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t setParameter(int key, const Parcel& request) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeInt32(key); |
| if (request.dataSize() > 0) { |
| data.appendFrom(const_cast<Parcel *>(&request), 0, request.dataSize()); |
| } |
| remote()->transact(SET_PARAMETER, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t getParameter(int key, Parcel *reply) |
| { |
| Parcel data; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| data.writeInt32(key); |
| return remote()->transact(GET_PARAMETER, data, reply); |
| } |
| |
| status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint) { |
| Parcel data, reply; |
| status_t err; |
| |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| if (NULL != endpoint) { |
| data.writeInt32(sizeof(*endpoint)); |
| data.write(endpoint, sizeof(*endpoint)); |
| } else { |
| data.writeInt32(0); |
| } |
| |
| err = remote()->transact(SET_RETRANSMIT_ENDPOINT, data, &reply); |
| if (OK != err) { |
| return err; |
| } |
| return reply.readInt32(); |
| } |
| |
| status_t setNextPlayer(const sp<IMediaPlayer>& player) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor()); |
| sp<IBinder> b(player->asBinder()); |
| data.writeStrongBinder(b); |
| remote()->transact(SET_NEXT_PLAYER, data, &reply); |
| return reply.readInt32(); |
| } |
| }; |
| |
| IMPLEMENT_META_INTERFACE(MediaPlayer, "android.media.IMediaPlayer"); |
| |
| // ---------------------------------------------------------------------- |
| |
| status_t BnMediaPlayer::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| switch (code) { |
| case DISCONNECT: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| disconnect(); |
| return NO_ERROR; |
| } break; |
| case SET_DATA_SOURCE_URL: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| const char* url = data.readCString(); |
| KeyedVector<String8, String8> headers; |
| int32_t numHeaders = data.readInt32(); |
| for (int i = 0; i < numHeaders; ++i) { |
| String8 key = data.readString8(); |
| String8 value = data.readString8(); |
| headers.add(key, value); |
| } |
| reply->writeInt32(setDataSource(url, numHeaders > 0 ? &headers : NULL)); |
| return NO_ERROR; |
| } break; |
| case SET_DATA_SOURCE_FD: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| int fd = data.readFileDescriptor(); |
| int64_t offset = data.readInt64(); |
| int64_t length = data.readInt64(); |
| reply->writeInt32(setDataSource(fd, offset, length)); |
| return NO_ERROR; |
| } |
| case SET_DATA_SOURCE_STREAM: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| sp<IStreamSource> source = |
| interface_cast<IStreamSource>(data.readStrongBinder()); |
| reply->writeInt32(setDataSource(source)); |
| return NO_ERROR; |
| } |
| case SET_VIDEO_SURFACETEXTURE: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| sp<ISurfaceTexture> surfaceTexture = |
| interface_cast<ISurfaceTexture>(data.readStrongBinder()); |
| reply->writeInt32(setVideoSurfaceTexture(surfaceTexture)); |
| return NO_ERROR; |
| } break; |
| case PREPARE_ASYNC: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(prepareAsync()); |
| return NO_ERROR; |
| } break; |
| case START: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(start()); |
| return NO_ERROR; |
| } break; |
| case STOP: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(stop()); |
| return NO_ERROR; |
| } break; |
| case IS_PLAYING: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| bool state; |
| status_t ret = isPlaying(&state); |
| reply->writeInt32(state); |
| reply->writeInt32(ret); |
| return NO_ERROR; |
| } break; |
| case PAUSE: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(pause()); |
| return NO_ERROR; |
| } break; |
| case SEEK_TO: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(seekTo(data.readInt32())); |
| return NO_ERROR; |
| } break; |
| case GET_CURRENT_POSITION: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| int msec; |
| status_t ret = getCurrentPosition(&msec); |
| reply->writeInt32(msec); |
| reply->writeInt32(ret); |
| return NO_ERROR; |
| } break; |
| case GET_DURATION: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| int msec; |
| status_t ret = getDuration(&msec); |
| reply->writeInt32(msec); |
| reply->writeInt32(ret); |
| return NO_ERROR; |
| } break; |
| case RESET: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(reset()); |
| return NO_ERROR; |
| } break; |
| case SET_AUDIO_STREAM_TYPE: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(setAudioStreamType((audio_stream_type_t) data.readInt32())); |
| return NO_ERROR; |
| } break; |
| case SET_LOOPING: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(setLooping(data.readInt32())); |
| return NO_ERROR; |
| } break; |
| case SET_VOLUME: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| float leftVolume = data.readFloat(); |
| float rightVolume = data.readFloat(); |
| reply->writeInt32(setVolume(leftVolume, rightVolume)); |
| return NO_ERROR; |
| } break; |
| case INVOKE: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| status_t result = invoke(data, reply); |
| return result; |
| } break; |
| case SET_METADATA_FILTER: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(setMetadataFilter(data)); |
| return NO_ERROR; |
| } break; |
| case GET_METADATA: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| bool update_only = static_cast<bool>(data.readInt32()); |
| bool apply_filter = static_cast<bool>(data.readInt32()); |
| const status_t retcode = getMetadata(update_only, apply_filter, reply); |
| reply->setDataPosition(0); |
| reply->writeInt32(retcode); |
| reply->setDataPosition(0); |
| return NO_ERROR; |
| } break; |
| case SET_AUX_EFFECT_SEND_LEVEL: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(setAuxEffectSendLevel(data.readFloat())); |
| return NO_ERROR; |
| } break; |
| case ATTACH_AUX_EFFECT: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(attachAuxEffect(data.readInt32())); |
| return NO_ERROR; |
| } break; |
| case SET_PARAMETER: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| int key = data.readInt32(); |
| |
| Parcel request; |
| if (data.dataAvail() > 0) { |
| request.appendFrom( |
| const_cast<Parcel *>(&data), data.dataPosition(), data.dataAvail()); |
| } |
| request.setDataPosition(0); |
| reply->writeInt32(setParameter(key, request)); |
| return NO_ERROR; |
| } break; |
| case GET_PARAMETER: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| return getParameter(data.readInt32(), reply); |
| } break; |
| case SET_RETRANSMIT_ENDPOINT: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| |
| struct sockaddr_in endpoint; |
| int amt = data.readInt32(); |
| if (amt == sizeof(endpoint)) { |
| data.read(&endpoint, sizeof(struct sockaddr_in)); |
| reply->writeInt32(setRetransmitEndpoint(&endpoint)); |
| } else { |
| reply->writeInt32(setRetransmitEndpoint(NULL)); |
| } |
| return NO_ERROR; |
| } break; |
| case SET_NEXT_PLAYER: { |
| CHECK_INTERFACE(IMediaPlayer, data, reply); |
| reply->writeInt32(setNextPlayer(interface_cast<IMediaPlayer>(data.readStrongBinder()))); |
| return NO_ERROR; |
| } break; |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| }; // namespace android |