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# Ap4DecoderConfigDescriptor.h

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    00001 /*****************************************************************
    00002 |
    00003 |    AP4 - DecoderConfig Descriptor
    00004 |
    00005 |    Copyright 2002-2006 Gilles Boccon-Gibod & Julien Boeuf
    00006 |
    00007 |
    00008 |    This file is part of Bento4/AP4 (MP4 Atom Processing Library).
    00009 |
    00010 |    Unless you have obtained Bento4 under a difference license,
    00011 |    this version of Bento4 is Bento4|GPL.
    00012 |    Bento4|GPL is free software; you can redistribute it and/or modify
    00013 |    it under the terms of the GNU General Public License as published by
    00014 |    the Free Software Foundation; either version 2, or (at your option)
    00015 |    any later version.
    00016 |
    00017 |    Bento4|GPL is distributed in the hope that it will be useful,
    00018 |    but WITHOUT ANY WARRANTY; without even the implied warranty of
    00019 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00020 |    GNU General Public License for more details.
    00021 |
    00022 |    You should have received a copy of the GNU General Public License
    00023 |    along with Bento4|GPL; see the file COPYING.  If not, write to the
    00024 |    Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
    00025 |    02111-1307, USA.
    00026 |
    00027  ****************************************************************/
    00028
    00029 #ifndef _AP4_DECODER_CONFIG_DESCRIPTOR_H_
    00030 #define _AP4_DECODER_CONFIG_DESCRIPTOR_H_
    00031
    00032 /*----------------------------------------------------------------------
    00033 |   includes
    00034 +---------------------------------------------------------------------*/
    00035 #include "Ap4Types.h"
    00036 #include "Ap4List.h"
    00037 #include "Ap4Descriptor.h"
    00038 #include "Ap4DecoderSpecificInfoDescriptor.h"
    00039
    00040 /*----------------------------------------------------------------------
    00041 |   class references
    00042 +---------------------------------------------------------------------*/
    00043 class AP4_ByteStream;
    00044
    00045 /*----------------------------------------------------------------------
    00046 |   constants
    00047 +---------------------------------------------------------------------*/
    00048 const AP4_UI08 AP4_DESCRIPTOR_TAG_DECODER_CONFIG = 0x04;
    00049
    00050 /*----------------------------------------------------------------------
    00051 |   AP4_DecoderConfigDescriptor
    00052 +---------------------------------------------------------------------*/
    00053 class AP4_DecoderConfigDescriptor : public AP4_Descriptor
    00054 {
    00055  public:
    00056     // methods
    00057     AP4_DecoderConfigDescriptor(AP4_UI08 stream_type,
    00058                                 AP4_UI08 oti,
    00059                                 AP4_UI32 buffer_size,
    00060                                 AP4_UI32 max_bitrate,
    00061                                 AP4_UI32 avg_bitrate,
    00062                                 AP4_DecoderSpecificInfoDescriptor* dsi);
    00063     AP4_DecoderConfigDescriptor(AP4_ByteStream& stream,
    00064                                 AP4_Size        header_size,
    00065                                 AP4_Size        payload_size);
    00066     virtual ~AP4_DecoderConfigDescriptor();
    00067     virtual AP4_Result WriteFields(AP4_ByteStream& stream);
    00068     virtual AP4_Result Inspect(AP4_AtomInspector& inspector);
    00069
    00070     // accessors
    00071     virtual const AP4_DecoderSpecificInfoDescriptor*
    00072         GetDecoderSpecificInfoDescriptor() const;
    00073     virtual AP4_UI08 GetObjectTypeIndication() const {
    00074         return m_ObjectTypeIndication;
    00075     }
    00076     virtual AP4_UI08 GetStreamType() const { return m_StreamType; }
    00077     virtual AP4_UI32 GetBufferSize() const { return m_BufferSize; }
    00078     virtual AP4_UI32 GetMaxBitrate() const { return m_MaxBitrate; }
    00079     virtual AP4_UI32 GetAvgBitrate() const { return m_AverageBitrate; }
    00080
    00081  private:
    00082     // members
    00083     AP4_UI08                         m_StreamType;
    00084     AP4_UI08                         m_ObjectTypeIndication;
    00085     bool                             m_UpStream;
    00086     AP4_UI32                         m_BufferSize;
    00087     AP4_UI32                         m_MaxBitrate;
    00088     AP4_UI32                         m_AverageBitrate;
    00089     mutable AP4_List<AP4_Descriptor> m_SubDescriptors;
    00090 };
    00091
    00092 #endif // _AP4_DECODER_CONFIG_DESCRIPTOR_H_