char* lm_serializer(LocalMotions *lms, int length)
{
std::ostringstream oss;
int size = vs_vector_size(lms);
for (int i = 0; i < size; ++i)
{
LocalMotion* lm = (LocalMotion*) vs_vector_get(lms, i);
oss << lm->v.x << ' ';
oss << lm->v.y << ' ';
oss << lm->f.x << ' ';
oss << lm->f.y << ' ';
oss << lm->f.size << ' ';
oss << lm->contrast << ' ';
oss << lm->match << ' ';
}
return strdup(oss.str().c_str());
}
static void init_apply_data( mlt_filter filter, mlt_frame frame, VSPixelFormat vs_format, int width, int height )
{
mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
vs_data* data = (vs_data*)filter->child;
vs_apply* apply_data = (vs_apply*)calloc( 1, sizeof(vs_apply) );
char* filename = mlt_properties_get( properties, "results" );
memset( apply_data, 0, sizeof( vs_apply ) );
mlt_log_info( MLT_FILTER_SERVICE(filter), "Load results from %s\n", filename );
// Initialize the VSTransformConfig
get_transform_config( &apply_data->conf, filter, frame );
// Initialize VSTransformData
VSFrameInfo fi_src, fi_dst;
vsFrameInfoInit( &fi_src, width, height, vs_format );
vsFrameInfoInit( &fi_dst, width, height, vs_format );
vsTransformDataInit( &apply_data->td, &apply_data->conf, &fi_src, &fi_dst );
// Initialize VSTransformations
vsTransformationsInit( &apply_data->trans );
// Convert file name string encoding.
mlt_properties_from_utf8( properties, "results", "_results" );
filename = mlt_properties_get( properties, "_results" );
// Load the motions from the analyze step and convert them to VSTransformations
FILE* f = fopen( filename, "r" );
VSManyLocalMotions mlms;
if( vsReadLocalMotionsFile( f, &mlms ) == VS_OK )
{
int i = 0;
mlt_log_info( MLT_FILTER_SERVICE(filter), "Successfully loaded %d motions\n", vs_vector_size( &mlms ) );
vsLocalmotions2Transforms( &apply_data->td, &mlms, &apply_data->trans );
vsPreprocessTransforms( &apply_data->td, &apply_data->trans );
// Free the MultipleLocalMotions
for( i = 0; i < vs_vector_size( &mlms ); i++ )
{
LocalMotions* lms = (LocalMotions*)vs_vector_get( &mlms, i );
if( lms )
{
vs_vector_del( lms );
}
}
vs_vector_del( &mlms );
data->apply_data = apply_data;
}
else
{
mlt_log_error( MLT_FILTER_SERVICE(filter), "Can not read results file: %s\n", filename );
destory_apply_data( apply_data );
data->apply_data = NULL;
}
if( f )
{
fclose( f );
}
}
