media/gmp-clearkey/0.1/WMFAACDecoder.h

   1 /*
   2  * Copyright 2013, Mozilla Foundation and contributors
   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 express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #if !defined(WMFAACDecoder_h_)
  18 #define WMFAACDecoder_h_
  19
  20 #include "WMFUtils.h"
  21
  22 namespace wmf {
  23
  24 class WMFAACDecoder {
  25 public:
  26   WMFAACDecoder();
  27   ~WMFAACDecoder();
  28
  29   HRESULT Init(int32_t aChannelCount,
  30                int32_t aSampleRate,
  31                BYTE* aUserData,
  32                UINT32 aUserDataLength);
  33
  34   HRESULT Input(const uint8_t* aData,
  35                 uint32_t aDataSize,
  36                 Microseconds aTimestamp);
  37
  38   HRESULT Output(IMFSample** aOutput);
  39
  40   HRESULT Reset();
  41
  42   HRESULT Drain();
  43
  44   UINT32 Channels() const { return mChannels; }
  45   UINT32 Rate() const { return mRate; }
  46
  47 private:
  48
  49   HRESULT GetOutputSample(IMFSample** aOutSample);
  50   HRESULT CreateOutputSample(IMFSample** aOutSample);
  51   HRESULT CreateInputSample(const uint8_t* aData,
  52                             uint32_t aDataSize,
  53                             Microseconds aTimestamp,
  54                             IMFSample** aOutSample);
  55
  56   HRESULT SetDecoderInputType(int32_t aChannelCount,
  57                               int32_t aSampleRate,
  58                               BYTE* aUserData,
  59                               UINT32 aUserDataLength);
  60   HRESULT SetDecoderOutputType();
  61   HRESULT SendMFTMessage(MFT_MESSAGE_TYPE aMsg, UINT32 aData);
  62
  63   MFT_INPUT_STREAM_INFO mInputStreamInfo;
  64   MFT_OUTPUT_STREAM_INFO mOutputStreamInfo;
  65
  66   CComPtr<IMFTransform> mDecoder;
  67
  68   UINT32 mChannels;
  69   UINT32 mRate;
  70 };
  71
  72 }
  73
  74 #endif