void mlt_field_disconnect_service( mlt_field self, mlt_service service ) { mlt_service p = mlt_service_producer( service ); mlt_service c = mlt_service_consumer( service); int i; switch ( mlt_service_identify(c) ) { case filter_type: i = mlt_filter_get_track( MLT_FILTER(c) ); mlt_service_connect_producer( c, p, i ); break; case transition_type: i = mlt_transition_get_a_track ( MLT_TRANSITION(c) ); mlt_service_connect_producer( c, p, i ); MLT_TRANSITION(c)->producer = p; break; case tractor_type: self->producer = p; mlt_tractor_connect( MLT_TRACTOR(c), p ); default: break; } mlt_events_fire( mlt_field_properties( self ), "service-changed", NULL ); }
int mlt_tractor_remove_track( mlt_tractor self, int index ) { int error = mlt_multitrack_disconnect( mlt_tractor_multitrack( self ), index ); if ( !error ) { // Update the track indices of transitions and track filters. mlt_service service = mlt_service_producer( MLT_TRACTOR_SERVICE( self ) ); while ( service ) { mlt_service_type type = mlt_service_identify( service ); mlt_properties properties = MLT_SERVICE_PROPERTIES( service ); if ( type == transition_type ) { mlt_transition transition = MLT_TRANSITION( service ); int a_track = mlt_transition_get_a_track( transition ); int b_track = mlt_transition_get_b_track( transition ); if ( a_track >= index || b_track >= index ) { a_track = MAX( a_track >= index ? a_track - 1 : a_track, 0 ); b_track = MAX( b_track >= index ? b_track - 1 : b_track, 0 ); mlt_transition_set_tracks( transition, a_track, b_track ); } } else if ( type == filter_type ) { int current_track = mlt_properties_get_int( properties, "track" ); if ( current_track >= index ) mlt_properties_set_int( properties, "track", MAX( current_track - 1, 0 ) ); } service = mlt_service_producer( service ); } } return error; }
static int get_image( mlt_frame a_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable ) { mlt_frame b_frame = mlt_frame_pop_frame( a_frame ); mlt_properties properties = MLT_FRAME_PROPERTIES( a_frame ); mlt_transition transition = MLT_TRANSITION( mlt_frame_pop_service( a_frame ) ); uint8_t *b_image; int window_size = mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( transition ), "window_size" ); double psnr[3], ssim[3]; *format = mlt_image_yuv422; mlt_frame_get_image( b_frame, &b_image, format, width, height, writable ); mlt_frame_get_image( a_frame, image, format, width, height, writable ); psnr[0] = calc_psnr( *image, b_image, *width * *height, 2 ); psnr[1] = calc_psnr( *image + 1, b_image + 1, *width * *height / 2, 4 ); psnr[2] = calc_psnr( *image + 3, b_image + 3, *width * *height / 2, 4 ); ssim[0] = calc_ssim( *image, b_image, *width, *height, window_size, 2 ); ssim[1] = calc_ssim( *image + 1, b_image + 1, *width / 2, *height, window_size, 4 ); ssim[2] = calc_ssim( *image + 3, b_image + 3, *width / 2, *height, window_size, 4 ); mlt_properties_set_double( properties, "meta.vqm.psnr.y", psnr[0] ); mlt_properties_set_double( properties, "meta.vqm.psnr.cb", psnr[1] ); mlt_properties_set_double( properties, "meta.vqm.psnr.cr", psnr[2] ); mlt_properties_set_double( properties, "meta.vqm.ssim.y", ssim[0] ); mlt_properties_set_double( properties, "meta.vqm.ssim.cb", ssim[1] ); mlt_properties_set_double( properties, "meta.vqm.ssim.cr", ssim[2] ); printf( "%05d %05.2f %05.2f %05.2f %5.3f %5.3f %5.3f\n", mlt_frame_get_position( a_frame ), psnr[0], psnr[1], psnr[2], ssim[0], ssim[1], ssim[2] ); // copy the B frame to the bottom of the A frame for comparison window_size = mlt_image_format_size( *format, *width, *height, NULL ) / 2; memcpy( *image + window_size, b_image + window_size, window_size ); if ( !mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( transition ), "render" ) ) return 0; // get RGBA image for Qt drawing *format = mlt_image_rgb24a; mlt_frame_get_image( a_frame, image, format, width, height, 1 ); // convert mlt image to qimage QImage img( *width, *height, QImage::Format_ARGB32 ); int y = *height + 1; uint8_t *src = *image; while ( --y ) { QRgb *dst = (QRgb*) img.scanLine( *height - y ); int x = *width + 1; while ( --x ) { *dst++ = qRgba( src[0], src[1], src[2], 255 ); src += 4; } } // setup Qt drawing QPainter painter; painter.begin( &img ); painter.setRenderHints( QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::HighQualityAntialiasing ); // draw some stuff with Qt QPalette palette; QFont font; QString s; font.setBold( true ); font.setPointSize( 30 * *height / 1080 ); painter.setPen( QColor("black") ); painter.drawLine( 0, *height/2 + 1, *width, *height/2 ); painter.setPen( QColor("white") ); painter.drawLine( 0, *height/2 - 1, *width, *height/2 ); painter.setFont( font ); s.sprintf( "Frame: %05d\nPSNR: %05.2f (Y) %05.2f (Cb) %05.2f (Cr)\nSSIM: %5.3f (Y) %5.3f (Cb) %5.3f (Cr)", mlt_frame_get_position( a_frame ), psnr[0], psnr[1], psnr[2], ssim[0], ssim[1], ssim[2] ); painter.setPen( QColor("black") ); painter.drawText( 52, *height * 8 / 10 + 2, *width, *height, 0, s ); painter.setPen( QColor("white") ); painter.drawText( 50, *height * 8 / 10, *width, *height, 0, s ); // finish Qt drawing painter.end(); window_size = mlt_image_format_size( *format, *width, *height, NULL ); uint8_t *dst = (uint8_t *) mlt_pool_alloc( window_size ); mlt_properties_set_data( MLT_FRAME_PROPERTIES(a_frame), "image", dst, window_size, mlt_pool_release, NULL ); *image = dst; // convert qimage to mlt y = *height + 1; while ( --y ) { QRgb *src = (QRgb*) img.scanLine( *height - y ); int x = *width + 1; while ( --x ) { *dst++ = qRed( *src ); *dst++ = qGreen( *src ); *dst++ = qBlue( *src ); *dst++ = qAlpha( *src ); src++; } } return 0; }