include/opencascade/Media_Packet.hxx

0001 // Created by: Kirill GAVRILOV
0002 // Copyright (c) 2019 OPEN CASCADE SAS
0003 //
0004 // This file is part of Open CASCADE Technology software library.
0005 //
0006 // This library is free software; you can redistribute it and/or modify it under
0007 // the terms of the GNU Lesser General Public License version 2.1 as published
0008 // by the Free Software Foundation, with special exception defined in the file
0009 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0010 // distribution for complete text of the license and disclaimer of any warranty.
0011 //
0012 // Alternatively, this file may be used under the terms of Open CASCADE
0013 // commercial license or contractual agreement.
0014
0015 #ifndef _Media_Packet_HeaderFile
0016 #define _Media_Packet_HeaderFile
0017
0018 #include <Standard_Transient.hxx>
0019 #include <Standard_Type.hxx>
0020
0021 struct AVPacket;
0022
0023 //! AVPacket wrapper - the packet (data chunk for decoding/encoding) holder.
0024 class Media_Packet : public Standard_Transient
0025 {
0026   DEFINE_STANDARD_RTTIEXT(Media_Packet, Standard_Transient)
0027 public:
0028
0029   //! Empty constructor
0030   Standard_EXPORT Media_Packet();
0031
0032   //! Destructor.
0033   Standard_EXPORT virtual ~Media_Packet();
0034
0035   //! av_packet_unref() wrapper.
0036   Standard_EXPORT void Unref();
0037
0038   //! Return packet.
0039   const AVPacket* Packet() const { return myPacket; }
0040
0041   //! Return packet.
0042   AVPacket* ChangePacket() { return myPacket; }
0043
0044   //! Return data.
0045   Standard_EXPORT const uint8_t* Data() const;
0046
0047   //! Return data.
0048   Standard_EXPORT uint8_t* ChangeData();
0049
0050   //! Return data size.
0051   Standard_EXPORT int Size() const;
0052
0053   //! Return presentation timestamp (PTS).
0054   Standard_EXPORT int64_t Pts() const;
0055
0056   //! Return decoding timestamp (DTS).
0057   Standard_EXPORT int64_t Dts() const;
0058
0059   //! Return Duration.
0060   Standard_EXPORT int64_t Duration() const;
0061
0062   //! Return Duration in seconds.
0063   double DurationSeconds() const { return myDurationSec; }
0064
0065   //! Set Duration in seconds.
0066   void SetDurationSeconds (double theDurationSec) { myDurationSec = theDurationSec; }
0067
0068   //! Return stream index.
0069   Standard_EXPORT int StreamIndex() const;
0070
0071   //! Return TRUE for a key frame.
0072   Standard_EXPORT bool IsKeyFrame() const;
0073
0074   //! Mark as key frame.
0075   Standard_EXPORT void SetKeyFrame();
0076
0077 protected:
0078
0079   AVPacket* myPacket;      //!< packet
0080   double    myDurationSec; //!< packet duration in seconds
0081
0082 };
0083
0084 #endif // _Media_Packet_HeaderFile