sbDeviceTranscoding.h

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/*
 *=BEGIN SONGBIRD GPL
 *
 * This file is part of the Songbird web player.
 *
 * Copyright(c) 2005-2011 POTI, Inc.
 * http://www.songbirdnest.com
 *
 * This file may be licensed under the terms of of the
 * GNU General Public License Version 2 (the ``GPL'').
 *
 * Software distributed under the License is distributed
 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
 * express or implied. See the GPL for the specific language
 * governing rights and limitations.
 *
 * You should have received a copy of the GPL along with this
 * program. If not, go to http://www.gnu.org/licenses/gpl.html
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *=END SONGBIRD GPL
 */

#ifndef SBDEVICETRANSCODING_H_
#define SBDEVICETRANSCODING_H_

// Standard includes
#include <list>

// Mozilla includes
#include <nsIArray.h>

// Songbird interfaces
#include <sbIMediaItem.h>
#include <sbITranscodeManager.h>
#include <sbITranscodeJob.h>
#include <sbITranscodeProfile.h>

// Songbird local includes
#include "sbBaseDevice.h"

class sbIMediaInspector;
class sbITranscodeVideoJob;
class sbDeviceStatusHelper;

class sbDeviceTranscoding
{
public:
  friend class sbBaseDevice;

  typedef sbBaseDevice::Batch Batch;
  typedef sbBaseDevice::TransferRequest TransferRequest;
  typedef sbBaseDevice::TransferRequest::CompatibilityType CompatibilityType;


  /* Get an array of all the sbITranscodeProfile instances supported for this
   * The default implementation filters all available profiles by the
   * capabilities of the device.
   */
  virtual nsresult GetSupportedTranscodeProfiles(PRUint32 aType,
                                                 nsIArray **aSupportedProfiles);

  nsresult FindTranscodeProfile(sbIMediaItem * aMediaItem,
                                sbITranscodeProfile ** aProfile,
                                CompatibilityType * aDeviceCompatibility);

  nsresult SelectTranscodeProfile(PRUint32 aTranscodeType,
                                  sbITranscodeProfile **aProfile);

  nsresult PrepareBatchForTranscoding(Batch & aBatch);

  static PRUint32 GetTranscodeType(sbIMediaItem * aMediaItem);

  nsresult GetMediaFormat(PRUint32 aTranscodeType,
                          sbIMediaItem* aMediaItem,
                          sbIMediaFormat** aMediaFormat);

  nsresult GetAudioFormatFromMediaItem(sbIMediaItem* aMediaItem,
                                       sbIMediaFormat** aMediaFormat);
  nsresult GetMediaInspector(sbIMediaInspector** _retval);

  nsresult TranscodeMediaItem(sbIMediaItem *aItem,
                              sbDeviceStatusHelper * aDeviceStatusHelper,
                              nsIURI * aDestinationURI,
                              nsIURI ** aTranscodedDestinationURI = nsnull);
private:
  sbDeviceTranscoding(sbBaseDevice * aBaseDevice);
  nsresult GetTranscodeManager(sbITranscodeManager ** aTranscodeManager);

  sbBaseDevice * mBaseDevice;
  nsCOMPtr<nsIArray> mTranscodeProfiles;
  nsCOMPtr<sbIMediaInspector> mMediaInspector;
  nsCOMPtr<sbITranscodeManager> mTranscodeManager;
};

#endif