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/*
* OSD Picture in Picture plugin for the Video Disk Recorder
*
* Copyright (C) 2010 Mitchm at vdrportal.de
* Copyright (C) 2005 - 2007 Reinhard Nissl <rnissl@gmx.de>
* Copyright (C) 2001 - 2008 Klaus Schmidinger <Klaus.Schmidinger@tvdr.de>
*
* remux.h: A streaming MPEG2 remultiplexer (taken from VDR-1.6.0)
*
* The parts of this code that implement cTS2PES have been taken from
* the Linux DVB driver's 'tuxplayer' example and were rewritten to suit
* VDR's needs.
*
* The cRepacker family's code was originally written by Reinhard Nissl <rnissl@gmx.de>,
* and adapted to the VDR coding style by Klaus.Schmidinger@tvdr.de.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __REMUX_PIP_H
#define __REMUX_PIP_H
#include <vdr/ringbuffer.h>
#include <vdr/tools.h>
#include <vdr/remux.h>
//ePesHeader AnalyzePesHeader(const uchar *Data, int Count, int &PesPayloadOffset, bool *ContinuationHeader = NULL);
// Picture types:
#define NO_PICTURE 0
#define I_FRAME 1
#define P_FRAME 2
#define B_FRAME 3
#define MAXTRACKS 64
class cTS2PES;
class cRemuxPIP {
private:
bool exitOnFailure;
bool noVideo;
int numUPTerrors;
bool synced;
#ifdef USE_SYNCEARLY
bool syncEarly;
#endif /* SYNCEARLY */
int skipped;
cTS2PES *ts2pes[MAXTRACKS];
int numTracks;
cRingBufferLinear *resultBuffer;
int resultSkipped;
int GetPid(const uchar *Data);
public:
#ifdef USE_SYNCEARLY
cRemuxPIP(int VPid, const int *APids, const int *DPids, const int *SPids, bool ExitOnFailure = false, bool SyncEarly = false);
#else
cRemuxPIP(int VPid, const int *APids, const int *DPids, const int *SPids, bool ExitOnFailure = false);
#endif /* SYNCEARLY */
///< Creates a new remuxer for the given PIDs. VPid is the video PID, while
///< APids, DPids and SPids are pointers to zero terminated lists of audio,
///< dolby and subtitle PIDs (the pointers may be NULL if there is no such
///< PID). If ExitOnFailure is true, the remuxer will initiate an "emergency
///< exit" in case of problems with the data stream.
///< If USE_SYNCEARLY is activated: SyncEarly causes cRemuxPIP to sync as soon
///< as a video or audio frame is seen.
~cRemuxPIP();
void SetTimeouts(int PutTimeout, int GetTimeout) { resultBuffer->SetTimeouts(PutTimeout, GetTimeout); }
///< By default cRemuxPIP assumes that Put() and Get() are called from different
///< threads, and uses a timeout in the Get() function in case there is no
///< data available. SetTimeouts() can be used to modify these timeouts.
///< Especially if Put() and Get() are called from the same thread, setting
///< both timeouts to 0 is recommended.
int Put(const uchar *Data, int Count);
///< Puts at most Count bytes of Data into the remuxer.
///< \return Returns the number of bytes actually consumed from Data.
uchar *Get(int &Count, uchar *PictureType = NULL);
///< Gets all currently available data from the remuxer.
///< \return Count contains the number of bytes the result points to, and
///< PictureType (if not NULL) will contain one of NO_PICTURE, I_FRAME, P_FRAME
///< or B_FRAME.
void Del(int Count);
///< Deletes Count bytes from the remuxer. Count must be the number returned
///< from a previous call to Get(). Several calls to Del() with fractions of
///< a previously returned Count may be made, but the total sum of all Count
///< values must be exactly what the previous Get() has returned.
void Clear(void);
///< Clears the remuxer of all data it might still contain, keeping the PID
///< settings as they are.
static void SetBrokenLink(uchar *Data, int Length);
static int GetPacketLength(const uchar *Data, int Count, int Offset);
static int ScanVideoPacket(const uchar *Data, int Count, int Offset, uchar &PictureType);
};
#endif // __REMUX_PIP_H
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