root/extra_lib/include/avcap/linux/frame.h

INCLUDED FROM

/*
* frame.h -- utilities for process digital video frames
* Copyright (C) 2000 Arne Schirmacher <arne@schirmacher.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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#ifdef HAS_AVC_SUPPORT
#define HAVE_LIBDV

#ifndef _FRAME_H
#define _FRAME_H 1

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <time.h>
#include <string>
using std::string;

#include <libdv/dv.h>
#include <libdv/dv_types.h>
#define DV_AUDIO_MAX_SAMPLES 1944

#define FRAME_MAX_WIDTH 720
#define FRAME_MAX_HEIGHT 576

namespace avcap
{
        
typedef struct Pack
{
        /// the five bytes of a packet
        unsigned char data[ 5 ];
}
Pack;

typedef struct TimeCode
{
        int hour;
        int min;
        int sec;
        int frame;
}
TimeCode;


typedef struct AudioInfo
{
        int frames;
        int frequency;
        int samples;
        int channels;
        int quantization;
}
AudioInfo;


class VideoInfo
{
public:
        int width;
        int height;
        bool isPAL;
        TimeCode timeCode;
        struct tm       recDate;

        VideoInfo();

        //    string GetTimeCodeString();
        //    string GetRecDateString();
}
;


class Frame
{
public:
        /// enough space to hold a PAL frame
        unsigned char data[ 144000 ];
        /// the number of bytes written to the frame
        int bytesInFrame;
#ifdef HAVE_LIBDV

        dv_decoder_t *decoder;
#endif

        int16_t *audio_buffers[ 4 ];

public:
        Frame();
        ~Frame();

        bool GetSSYBPack( int packNum, Pack &pack ) const;
        bool GetVAUXPack( int packNum, Pack &pack ) const;
        bool GetAAUXPack( int packNum, Pack &pack ) const;
        bool GetTimeCode( TimeCode &timeCode ) const;
        bool GetRecordingDate( struct tm &recDate ) const;
        string GetRecordingDate( void ) const;
        bool GetAudioInfo( AudioInfo &info ) const;
        bool GetVideoInfo( VideoInfo &info ) const;
        int GetFrameSize( void ) const;
        float GetFrameRate() const;
        bool IsPAL( void ) const;
        bool IsNewRecording( void ) const;
        bool IsNormalSpeed() const;
        bool IsComplete( void ) const;
        int ExtractAudio( void *sound ) const;
        void ExtractHeader( void );

#ifdef HAVE_LIBDV

        void SetPreferredQuality( );
        int ExtractAudio( int16_t **channels ) const;
        int ExtractRGB( void *rgb );
        int ExtractPreviewRGB( void *rgb );
        int ExtractYUV( void *yuv );
        int ExtractPreviewYUV( void *yuv );
        bool IsWide( void ) const;
        int GetWidth();
        int GetHeight();
        void SetRecordingDate( time_t *datetime, int frame );
        void SetTimeCode( int frame );
#endif

        void Deinterlace( void *image, int bpp );

private:
#ifndef HAVE_LIBDV
        /// flag for initializing the lookup maps once at startup
        static bool maps_initialized;
        /// lookup tables for collecting the shuffled audio data
        static int palmap_ch1[ 2000 ];
        static int palmap_ch2[ 2000 ];
        static int palmap_2ch1[ 2000 ];
        static int palmap_2ch2[ 2000 ];
        static int ntscmap_ch1[ 2000 ];
        static int ntscmap_ch2[ 2000 ];
        static int ntscmap_2ch1[ 2000 ];
        static int ntscmap_2ch2[ 2000 ];
        static short compmap[ 4096 ];
#endif
};

}

#endif
#endif