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/*
* dvframe.h -- utilities for process DV-format 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.
*/
#ifndef _DVFRAME_H
#define _DVFRAME_H 1
#include "frame.h"
#ifdef HAVE_LIBDV
#include <libdv/dv.h>
#include <libdv/dv_types.h>
#else
#define DV_AUDIO_MAX_SAMPLES 1944
#ifndef CLAMP
#define CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
#endif
#endif
#define FRAME_MAX_WIDTH 720
#define FRAME_MAX_HEIGHT 576
typedef struct Pack
{
/// the five bytes of a packet
unsigned char data[ 5 ];
}
Pack;
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 DVFrame : public Frame
{
public:
#ifdef HAVE_LIBDV
dv_decoder_t *decoder;
#endif
int16_t *audio_buffers[ 4 ];
public:
DVFrame();
~DVFrame();
void SetDataLen( int len );
// Meta-data
bool GetTimeCode( TimeCode &timeCode );
bool GetRecordingDate( struct tm &recDate );
bool IsNewRecording( void );
bool IsNormalSpeed( void );
bool IsComplete( void );
// Video info
#ifdef HAVE_LIBDV
int GetWidth();
int GetHeight();
#endif
float GetFrameRate();
// HDV cd DV
bool IsHDV();
bool GetSSYBPack( int packNum, Pack &pack );
bool GetVAUXPack( int packNum, Pack &pack );
bool GetAAUXPack( int packNum, Pack &pack );
bool GetAudioInfo( AudioInfo &info );
bool GetVideoInfo( VideoInfo &info );
int GetFrameSize( void );
bool IsPAL( void );
int ExtractAudio( void *sound );
void ExtractHeader( void );
#ifdef HAVE_LIBDV
int ExtractAudio( int16_t **channels );
int ExtractRGB( void *rgb );
int ExtractPreviewRGB( void *rgb );
int ExtractYUV( void *yuv );
int ExtractPreviewYUV( void *yuv );
bool IsWide( void );
void SetRecordingDate( time_t *datetime, int frame );
void SetTimeCode( int frame );
void Deinterlace( void *image, int bpp );
#endif
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
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