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mltpp/src/MltFrame.cpp

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2.4 KiB

/**
* MltFrame.cpp - MLT Wrapper
* Copyright (C) 2004-2005 Charles Yates
* Author: Charles Yates <charles.yates@pandora.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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.
*/
#include "MltFrame.h"
#include "MltProducer.h"
using namespace Mlt;
Frame::Frame( mlt_frame frame ) :
instance( frame )
{
inc_ref( );
}
Frame::Frame( Frame &frame ) :
instance( frame.get_frame( ) )
{
inc_ref( );
}
Frame::~Frame( )
{
mlt_frame_close( instance );
}
mlt_frame Frame::get_frame( )
{
return instance;
}
mlt_properties Frame::get_properties( )
{
return mlt_frame_properties( get_frame( ) );
}
uint8_t *Frame::get_image( mlt_image_format &format, int &w, int &h, int writable )
{
uint8_t *image = NULL;
if ( get_double( "consumer_aspect_ratio" ) == 0.0 )
set( "consumer_aspect_ratio", 1.0 );
mlt_frame_get_image( get_frame( ), &image, &format, &w, &h, writable );
set( "format", format );
set( "writable", writable );
return image;
}
unsigned char *Frame::fetch_image( mlt_image_format f, int w, int h, int writable )
{
uint8_t *image = NULL;
if ( get_double( "consumer_aspect_ratio" ) == 0.0 )
set( "consumer_aspect_ratio", 1.0 );
mlt_frame_get_image( get_frame( ), &image, &f, &w, &h, writable );
set( "format", f );
set( "writable", writable );
return image;
}
int16_t *Frame::get_audio( mlt_audio_format &format, int &frequency, int &channels, int &samples )
{
int16_t *audio = NULL;
mlt_frame_get_audio( get_frame( ), &audio, &format, &frequency, &channels, &samples );
return audio;
}
unsigned char *Frame::get_waveform( int w, int h )
{
return mlt_frame_get_waveform( get_frame( ), w, h );
}
Producer *Frame::get_original_producer( )
{
return new Producer( mlt_frame_get_original_producer( get_frame( ) ) );
}