libmedia/gst/AudioDecoderGst.h

   1 // AudioDecoderGst.h: Audio decoding using Gstreamer.
   2 //
   3 //   Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19 #ifndef GNASH_AUDIODECODERGST_H
  20 #define GNASH_AUDIODECODERGST_H
  21
  22 #include "log.h"
  23 #include "AudioDecoder.h"
  24
  25 #include <gst/gst.h>
  26 #include "GnashImage.h"
  27
  28 #include "swfdec_codec_gst.h"
  29
  30 // Forward declarations
  31 namespace gnash {
  32     namespace media {
  33         class AudioInfo;
  34         class SoundInfo;
  35     }
  36 }
  37
  38 namespace gnash {
  39 namespace media {
  40 namespace gst {
  41
  42 /// GST based AudioDecoder
  43 class DSOEXPORT AudioDecoderGst : public AudioDecoder {
  44
  45 public:
  46     AudioDecoderGst(const AudioInfo& info);
  47     AudioDecoderGst(SoundInfo& info);
  48
  49     ~AudioDecoderGst();
  50
  51     boost::uint8_t* decode(const boost::uint8_t* input, boost::uint32_t inputSize,
  52                            boost::uint32_t& outputSize, boost::uint32_t& decodedData,
  53                            bool /*parse*/);
  54     boost::uint8_t* decode(const EncodedAudioFrame& ef, boost::uint32_t& outputSize);
  55
  56 private:
  57
  58     boost::uint8_t* pullBuffers(boost::uint32_t&  outputSize);
  59
  60     void setup(GstCaps* caps);
  61
  62     SwfdecGstDecoder _decoder;
  63
  64 };
  65
  66 } // gnash.media.gst namespace
  67 } // media namespace
  68 } // gnash namespace
  69
  70 #endif // __AUDIODECODERGST_H__
  71