1 /*

     2 * Copyright (c) 2010 Ixonos Plc.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - Initial contribution

    11 *

    12 * Contributors:

    13 * Ixonos Plc

    14 *

    15 * Description:  

    16 * Transcoder observer.

    17 *

    18 */

    19 

    20 

    21 #ifndef CTRTRANSCODEROBSERVER_H

    22 #define CTRTRANSCODEROBSERVER_H

    23 

    24 

    25 // INCLUDES

    26 #include <CCMRMediaSink.h>

    27 #include "ctrcommon.h"

    28 

    29 

    30 /**

    31 *  Transcoder observer interface class. Every client should implement this class. 

    32 *  @lib TRANSCODER.LIB

    33 *  @since 3.1

    34 */

    35 class MTRTranscoderObserver

    36     {

    37     public:

    38         /**

    39         * Reports initialize status to the client

    40         * @param aError Error status

    41         * @return void

    42         */

    43         virtual void MtroInitializeComplete(TInt aError) = 0;

    44 

    45         /**

    46         * Reports run-time error to the client

    47         * @param aError Run-time error

    48         * @return void

    49         */

    50         virtual void MtroFatalError(TInt aError) = 0;

    51 

    52         /**

    53         * Returns media bitstream buffer to the client

    54         * @param aBuffer Bitstream media buffer

    55         * @return void

    56         */

    57         virtual void MtroReturnCodedBuffer(CCMRMediaBuffer* aBuffer) = 0;

    58 

    59         /**

    60         * Request to the client to set FrameRate of the input sequence.

    61         * @param aRate Framerate of the input sequence (in frames per second)

    62         * @return void

    63         */

    64         virtual void MtroSetInputFrameRate(TReal& aRate) = 0;

    65         

    66         /**

    67         * Completes async request

    68         * @param none

    69         * @return void

    70         */

    71         virtual void MtroAsyncStopComplete() = 0;

    72         

    73         /**

    74         * Notifies that resources were lost and transcoding has to be suspended

    75         * @param none

    76         * @return void

    77         */

    78         virtual void MtroSuspend() = 0;

    79         

    80         /**

    81         * Notifies that resources were restored and transcoding can now continue

    82         * @param none

    83         * @return void

    84         */

    85         virtual void MtroResume() = 0;

    86     };

    87 

    88 

    89 

    90 #endif