bool LibAVParams::setOption( const std::string& libAVOptionName, const std::string& value, const std::string& detailedName )
{
try
{
// Get libav option
avtranscoder::Option& option = getLibAVOption( libAVOptionName, detailedName );
// Set libav option's value
option.setString( value );
// Get corresponding OFX parameter
OFX::ValueParam* param = getOFXParameter( libAVOptionName, detailedName );
if( ! param)
{
TUTTLE_LOG_WARNING( "Can't get OFX parameter corresponding to option " << libAVOptionName << " of subgroup " << detailedName );
return false;
}
// Set OFX parameter's value
OFX::BooleanParam* paramBoolean = dynamic_cast<OFX::BooleanParam*>( param );
if( paramBoolean )
{
paramBoolean->setValue( option.getBool() );
return true;
}
OFX::IntParam* paramInt = dynamic_cast<OFX::IntParam*>( param );
if( paramInt )
{
paramInt->setValue( option.getInt() );
return true;
}
OFX::DoubleParam* paramDouble = dynamic_cast<OFX::DoubleParam*>( param );
if( paramDouble )
{
paramDouble->setValue( option.getDouble() );
return true;
}
OFX::StringParam* paramString = dynamic_cast<OFX::StringParam*>( param );
if( paramString )
{
paramString->setValue( option.getString() );
return true;
}
OFX::Int2DParam* paramRatio = dynamic_cast<OFX::Int2DParam*>( param );
if( paramRatio )
{
paramRatio->setValue( option.getRatio().first, option.getRatio().second );
return true;
}
OFX::ChoiceParam* paramChoice = dynamic_cast<OFX::ChoiceParam*>( param );
if( paramChoice )
{
paramChoice->setValue( option.getInt() );
return true;
}
}
catch( std::exception& e )
{
TUTTLE_LOG_WARNING( "Can't set option " << libAVOptionName << " to " << value << ": " << e.what() );
return false;
}
}
void CropPlugin::changedParam( const OFX::InstanceChangedArgs& args, const std::string& paramName )
{
if( paramName == kCropHelpButton )
{
sendMessage( OFX::Message::eMessageMessage,
"", // No XML resources
kCropHelpString );
}
else if( paramName == kParamPresets )
{
// Compute bands sizes in pixels
int f, bandSize;
double ratio;
_paramFormats->getValue( f );
OFX::IntParam* upBand = fetchIntParam( kParamUp );
OFX::IntParam* downBand = fetchIntParam( kParamDown );
OFX::IntParam* leftBand = fetchIntParam( kParamLeft );
OFX::IntParam* rightBand = fetchIntParam( kParamRight );
OfxRectD rod = _clipSrc->getCanonicalRod( timeLineGetTime() );
double par = _clipSrc->getPixelAspectRatio();
int w = (int)std::abs( rod.x2 - rod.x1 );
int h = (int)std::abs( rod.y2 - rod.y1 );
switch( f )
{
// 4/3
case k1_1_33:
ratio = 4.0 / 3.0;
break;
// 16 / 9
case k1_1_77:
ratio = 16.0 / 9.0;
break;
// 1:1.85
case k1_1_85:
ratio = 1.85;
break;
// Cinemascope
case k1_2_35:
ratio = 2.35;
break;
case k1_2_40:
ratio = 2.40;
break;
default:
ratio = 0;
break;
}
// If image ratio is lesser than the specified ratio, we need to add left and right bands
if( ( (double)( w ) / h ) > ratio )
{
bandSize = (int)round( ( w - ( h / ( 1.0 / ratio ) ) ) / 2.0 );
upBand->setValue( 0 );
downBand->setValue( 0 );
leftBand->setValue( (int)round( bandSize / par ) );
rightBand->setValue( (int)round( bandSize / par ) );
}
else if( ( (double)( w ) / h ) < ratio )
{
// Add top and bottom bands
bandSize = (int)round( ( h - ( ( w ) / ratio ) ) / 2.0 );
upBand->setValue( bandSize );
downBand->setValue( bandSize );
leftBand->setValue( 0 );
rightBand->setValue( 0 );
}
else
{
upBand->setValue( 0 );
downBand->setValue( 0 );
leftBand->setValue( 0 );
rightBand->setValue( 0 );
}
}
}