1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 #ifndef PVMF_DATA_SOURCE_DIRECTION_CONTROL_H_INCLUDED 19 #define PVMF_DATA_SOURCE_DIRECTION_CONTROL_H_INCLUDED 20 21 #ifndef OSCL_BASE_H_INCLUDED 22 #include "oscl_base.h" 23 #endif 24 #ifndef OSCL_VECTOR_H_INCLUDED 25 #include "oscl_vector.h" 26 #endif 27 #ifndef OSCL_MEM_H_INCLUDED 28 #include "oscl_mem.h" 29 #endif 30 #ifndef PV_UUID_H_INCLUDED 31 #include "pv_uuid.h" 32 #endif 33 #ifndef PV_INTERFACE_H_INCLUDED 34 #include "pv_interface.h" 35 #endif 36 #ifndef PVMF_TIMESTAMP_H_INCLUDED 37 #include "pvmf_timestamp.h" 38 #endif 39 #ifndef PVMF_RETURN_CODES_H_INCLUDED 40 #include "pvmf_return_codes.h" 41 #endif 42 43 #ifndef PVMF_MEDIA_CLOCK_H_INCLUDED 44 #include "pvmf_media_clock.h" 45 #endif 46 47 #define PVMF_DATA_SOURCE_DIRECTION_CONTROL_INTERFACE_MIMETYPE "pvxxx/pvmf/pvmfdatasourcedirectioncontrolinterface" 48 #define PvmfDataSourceDirectionControlUuid PVUuid(0xd2f06f90,0x9827,0x11da,0xa7,0x2b,0x08,0x00,0x20,0x0c,0x9a,0x66) 49 //d2f06f90-9827-11da-a7-2b-08-00-20-0c-9a-66 50 51 //values for the aDirection parameter of SetDataSourceDirection 52 #define PVMF_DATA_SOURCE_DIRECTION_FORWARD 0 53 #define PVMF_DATA_SOURCE_DIRECTION_REVERSE 1 54 55 /** 56 * Configuration interface to control data source nodes for playback 57 */ 58 class PvmfDataSourceDirectionControlInterface : public PVInterface 59 { 60 public: 61 62 /** 63 * Asynchronous method to set the playback direction of the data source 64 * 65 * The playback direction is either forward or backward. The direction change is assumed 66 * to occur from the current source position. 67 * This method is asynchronous and the completion of this command will be sent through the 68 * PVMFNodeCmdStatusObserver of the node implementing this interface. 69 * 70 * @param aSessionId The assigned node session ID to use for this request 71 * @param aDirection The new playback direction, 0=forward, 1=reverse. 72 * @param aTimebase (optional) The timebase specified to use for the playback clock. 73 * @param aActualNPT The actual normal-play-time timestamp after changing direction will be saved 74 * to this parameter. 75 * @param aActualMediaDataTS The media data timestamp corresponding to the actual NPT time. This 76 * will be the timestamp of the first media data after changing direction. 77 * @param aContext Optional opaque data to be passed back to user with the command response 78 * @returns A unique command ID for asynchronous completion 79 **/ 80 virtual PVMFCommandId SetDataSourceDirection(PVMFSessionId aSessionId, 81 int32 aDirection, 82 PVMFTimestamp& aActualNPT, 83 PVMFTimestamp& aActualMediaDataTS, 84 PVMFTimebase* aTimebase = NULL, 85 OsclAny* aContext = NULL) = 0; 86 87 }; 88 89 #endif // PVMF_DATA_SOURCE_DIRECTION_CONTROL_H_INCLUDED 90 91 92 93 94