+++ /dev/null
-/*
- * producer_slowmotion.c -- create subspeed frames
- * Author: Zachary Drew
- *
- * 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.
- */
-
-#include "filter_motion_est.h"
-#include <framework/mlt.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <sys/time.h>
-#include <assert.h>
-#define SHIFT 8
-#define ABS(a) ((a) >= 0 ? (a) : (-(a)))
-
-// This is used to constrains pixel operations between two blocks to be within the image boundry
-inline static int constrain( int *x, int *y, int *w, int *h,
- const int dx, const int dy,
- const int left, const int right,
- const int top, const int bottom)
-{
- uint32_t penalty = 1 << SHIFT; // Retain a few extra bits of precision
- int x2 = *x + dx;
- int y2 = *y + dy;
- int w_remains = *w;
- int h_remains = *h;
-
- // Origin of macroblock moves left of image boundy
- if( *x < left || x2 < left ) {
- w_remains = *w - left + ((*x < x2) ? *x : x2);
- *x += *w - w_remains;
- }
- // Portion of macroblock moves right of image boundry
- else if( *x + *w > right || x2 + *w > right )
- w_remains = right - ((*x > x2) ? *x : x2);
-
- // Origin of macroblock moves above image boundy
- if( *y < top || y2 < top ) {
- h_remains = *h - top + ((*y < y2) ? *y : y2);
- *y += *h - h_remains;
- }
- // Portion of macroblock moves bellow image boundry
- else if( *y + *h > bottom || y2 + *h > bottom )
- h_remains = bottom - ((*y > y2) ? *y : y2);
-
- if( w_remains == *w && h_remains == *h ) return penalty;
- if( w_remains <= 0 || h_remains <= 0) return 0; // Block is clipped out of existance
- penalty = (*w * *h * penalty)
- / ( w_remains * h_remains); // Recipricol of the fraction of the block that remains
-
- *w = w_remains; // Update the width and height
- *h = h_remains;
-
- return penalty;
-}
-
-static void motion_interpolate( uint8_t *first_image, uint8_t *second_image, uint8_t *output,
- int top_mb, int bottom_mb, int left_mb, int right_mb,
- int mb_w, int mb_h,
- int width, int height,
- int xstride, int ystride,
- double scale,
- motion_vector *vectors )
-{
- assert ( scale >= 0.0 && scale <= 1.0 );
-
- int i, j;
- int x,y,w,h;
- int dx, dy;
- int scaled_dx, scaled_dy;
- int tx,ty;
- uint8_t *f,*s,*r;
- motion_vector *here;
- int mv_width = width / mb_w;
-
- for( j = top_mb; j <= bottom_mb; j++ ){
- for( i = left_mb; i <= right_mb; i++ ){
-
- here = vectors + j*mv_width + i;
- scaled_dx = (1.0 - scale) * (double)here->dx;
- scaled_dy = (1.0 - scale) * (double)here->dy;
- dx = here->dx;
- dy = here->dy;
- w = mb_w; h = mb_h;
- x = i * w; y = j * h;
-
- // Denoise function caused some blocks to be completely clipped, ignore them
- if (constrain( &x, &y, &w, &h, dx, dy, 0, width, 0, height) == 0 )
- continue;
-
- for( ty = y; ty < y + h ; ty++ ){
- for( tx = x; tx < x + w ; tx++ ){
-
- f = first_image + (tx + dx )*xstride + (ty + dy )*ystride;
- s = second_image + (tx )*xstride + (ty )*ystride;
- r = output + (tx+scaled_dx)*xstride + (ty+scaled_dy)*ystride;
-/*
- if( ABS(f[0] - s[0]) > 3 * here->msad / (mb_w * mb_h * 2) )
- {
- r[0] = f[0];
- r[1] = f[1];
- }
-
- else
- {
-
-*/
- r[0] = ( 1.0 - scale ) * (double)f[0] + scale * (double)s[0];
-
- if( dx % 2 == 0 )
- {
- if( scaled_dx % 2 == 0 )
- r[1] = ( 1.0 - scale ) * (double)f[1] + scale * (double) s[1];
- else
- *(r-1) = ( 1.0 - scale ) * (double)f[1] + scale * (double) s[1];
- }
- else
- {
- if( scaled_dx %2 == 0 )
- // FIXME: may exceed boundies
- r[1] = ( 1.0 - scale ) * ( (double)(*(f-1) + (double)f[3]) / 2.0 ) + scale * (double) s[1];
- else
- // FIXME: may exceed boundies
- *(r-1) = ( 1.0 - scale ) * ( (double)(*(f-1) + (double)f[3]) / 2.0 ) + scale * (double) s[1];
- }
-// }
- }
- }
- }
- }
-}
-
-// Image stack(able) method
-static int slowmotion_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
-{
-
- // Get the filter object and properties
- mlt_producer producer = mlt_frame_pop_service( this );
- mlt_frame second_frame = mlt_frame_pop_service( this );
- mlt_frame first_frame = mlt_frame_pop_service( this );
-
- mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
-
- // Frame properties objects
- mlt_properties frame_properties = MLT_FRAME_PROPERTIES( this );
- mlt_properties first_frame_properties = MLT_FRAME_PROPERTIES( first_frame );
- mlt_properties second_frame_properties = MLT_FRAME_PROPERTIES( second_frame );
-
- // image stride
- int size, xstride, ystride;
- switch( *format ){
- case mlt_image_yuv422:
- size = *width * *height * 2;
- xstride = 2;
- ystride = 2 * *width;
- break;
- default:
- fprintf(stderr, "Unsupported image format\n");
- return -1;
- }
-
- uint8_t *output = mlt_properties_get_data( producer_properties, "output_buffer", 0 );
- if( output == NULL )
- {
- output = mlt_pool_alloc( size );
-
- // Let someone else clean up
- mlt_properties_set_data( producer_properties, "output_buffer", output, size, mlt_pool_release, NULL );
- }
-
- uint8_t *first_image = mlt_properties_get_data( first_frame_properties, "image", NULL );
- uint8_t *second_image = mlt_properties_get_data( second_frame_properties, "image", NULL );
-
- // which frames are buffered?
-
- int error = 0;
-
- if( first_image == NULL )
- {
- error = mlt_frame_get_image( first_frame, &first_image, format, width, height, writable );
-
- if( error != 0 ) {
- fprintf(stderr, "first_image == NULL get image died\n");
- return error;
- }
- }
-
- if( second_image == NULL )
- {
- error = mlt_frame_get_image( second_frame, &second_image, format, width, height, writable );
-
- if( error != 0 ) {
- fprintf(stderr, "second_image == NULL get image died\n");
- return error;
- }
- }
-
- // These need to passed onto the frame for other
- mlt_properties_pass_list( frame_properties, second_frame_properties,
- "motion_est.left_mb, motion_est.right_mb, \
- motion_est.top_mb, motion_est.bottom_mb, \
- motion_est.macroblock_width, motion_est.macroblock_height" );
-
- // Pass the pointer to the vectors without serializing
- mlt_properties_set_data( frame_properties, "motion_est.vectors",
- mlt_properties_get_data( second_frame_properties, "motion_est.vectors", NULL ),
- 0, NULL, NULL );
-
-
- // Start with a base image
- memcpy( output, first_image, size );
-
- if( mlt_properties_get_int( producer_properties, "method" ) == 1 ) {
-
- mlt_position first_position = mlt_frame_get_position( first_frame );
- double actual_position = mlt_producer_get_speed( producer ) * (double)mlt_frame_get_position( this );
- double scale = actual_position - first_position;
-
- motion_interpolate
- (
- first_image, second_image, output,
- mlt_properties_get_int( second_frame_properties, "motion_est.top_mb" ),
- mlt_properties_get_int( second_frame_properties, "motion_est.bottom_mb" ),
- mlt_properties_get_int( second_frame_properties, "motion_est.left_mb" ),
- mlt_properties_get_int( second_frame_properties, "motion_est.right_mb" ),
- mlt_properties_get_int( second_frame_properties, "motion_est.macroblock_width" ),
- mlt_properties_get_int( second_frame_properties, "motion_est.macroblock_height" ),
- *width, *height,
- xstride, ystride,
- scale,
- mlt_properties_get_data( second_frame_properties, "motion_est.vectors", NULL )
- );
-
- if( mlt_properties_get_int( producer_properties, "debug" ) == 1 ) {
- mlt_filter watermark = mlt_properties_get_data( producer_properties, "watermark", NULL );
-
- if( watermark == NULL ) {
- mlt_profile profile = mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) );
- watermark = mlt_factory_filter( profile, "watermark", NULL );
- mlt_properties_set_data( producer_properties, "watermark", watermark, 0, (mlt_destructor)mlt_filter_close, NULL );
- mlt_producer_attach( producer, watermark );
- }
-
- mlt_properties wm_properties = MLT_FILTER_PROPERTIES( watermark );
-
- char disp[30];
- sprintf(disp, "+%10.2f.txt", actual_position);
- mlt_properties_set( wm_properties, "resource", disp );
-
- }
-
- }
-
- *image = output;
- mlt_properties_set_data( frame_properties, "image", output, size, NULL, NULL );
-
- // Make sure that no further scaling is done
- mlt_properties_set( frame_properties, "rescale.interps", "none" );
- mlt_properties_set( frame_properties, "scale", "off" );
-
- mlt_frame_close( first_frame );
- mlt_frame_close( second_frame );
-
- return 0;
-}
-
-static int slowmotion_get_frame( mlt_producer this, mlt_frame_ptr frame, int index )
-{
- // Construct a new frame
- *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( this ) );
-
- mlt_properties properties = MLT_PRODUCER_PROPERTIES(this);
-
-
- if( frame != NULL )
- {
-
- mlt_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
- mlt_frame second_frame = mlt_properties_get_data( properties, "second_frame", NULL );
-
- mlt_position first_position = (first_frame != NULL) ? mlt_frame_get_position( first_frame ) : -1;
- mlt_position second_position = (second_frame != NULL) ? mlt_frame_get_position( second_frame ) : -1;
-
- // Get the real producer
- mlt_producer real_producer = mlt_properties_get_data( properties, "producer", NULL );
-
- // Our "in" needs to be the same, keep it so
- mlt_properties_pass_list( MLT_PRODUCER_PROPERTIES( real_producer ), properties, "in" );
-
- // Calculate our positions
- double actual_position = mlt_producer_get_speed( this ) * (double)mlt_producer_position( this );
- mlt_position need_first = floor( actual_position );
- mlt_position need_second = need_first + 1;
-
- if( need_first != first_position )
- {
- mlt_frame_close( first_frame );
- first_position = -1;
- first_frame = NULL;
- }
-
- if( need_second != second_position)
- {
- mlt_frame_close( second_frame );
- second_position = -1;
- second_frame = NULL;
- }
-
- if( first_frame == NULL )
- {
- // Seek the producer to the correct place
- mlt_producer_seek( real_producer, need_first );
-
- // Get the frame
- mlt_service_get_frame( MLT_PRODUCER_SERVICE( real_producer ), &first_frame, index );
- }
-
- if( second_frame == NULL )
- {
- // Seek the producer to the correct place
- mlt_producer_seek( real_producer, need_second );
-
- // Get the frame
- mlt_service_get_frame( MLT_PRODUCER_SERVICE( real_producer ), &second_frame, index );
- }
-
- // Make sure things are in their place
- mlt_properties_set_data( properties, "first_frame", first_frame, 0, NULL, NULL );
- mlt_properties_set_data( properties, "second_frame", second_frame, 0, NULL, NULL );
-
- mlt_properties_set_int( MLT_FRAME_PROPERTIES( *frame ), "test_image", 0 );
-
- // Stack the producer and producer's get image
- mlt_frame_push_service( *frame, first_frame );
- mlt_properties_inc_ref( MLT_FRAME_PROPERTIES( first_frame ) );
-
- mlt_frame_push_service( *frame, second_frame );
- mlt_properties_inc_ref( MLT_FRAME_PROPERTIES( second_frame ) );
-
- mlt_frame_push_service( *frame, this );
- mlt_frame_push_service( *frame, slowmotion_get_image );
-
- // Give the returned frame temporal identity
- mlt_frame_set_position( *frame, mlt_producer_position( this ) );
- }
-
- return 0;
-}
-
-mlt_producer producer_slowmotion_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
-{
- mlt_producer this = mlt_producer_new( );
-
- // Wrap fezzik
- mlt_producer real_producer = mlt_factory_producer( profile, "fezzik", arg );
-
- // We need to apply the motion estimation filter manually
- mlt_filter filter = mlt_factory_filter( profile, "motion_est", NULL );
-
- if ( this != NULL && real_producer != NULL && filter != NULL)
- {
- // attach the motion_est filter to the real producer
- mlt_producer_attach( real_producer, filter );
-
- // Get the properties of this producer
- mlt_properties properties = MLT_PRODUCER_PROPERTIES( this );
-
- // Fezzik normalised it for us already
- mlt_properties_set_int( properties, "fezzik_normalised", 1);
-
- // Store the producer and fitler
- mlt_properties_set_data( properties, "producer", real_producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
- mlt_properties_set_data( properties, "motion_est", filter, 0, ( mlt_destructor )mlt_filter_close, NULL );
- mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "macroblock_width", 16 );
- mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "macroblock_height", 16 );
- mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "denoise", 0 );
-
- // Grap some stuff from the real_producer
- mlt_properties_pass_list( properties, MLT_PRODUCER_PROPERTIES( real_producer ),
- "in, out, length, resource" );
-
- // Since we control the seeking, prevent it from seeking on its own
- mlt_producer_set_speed( real_producer, 0 );
-
- //mlt_properties_set( properties, "method", "onefield" );
-
- // Override the get_frame method
- this->get_frame = slowmotion_get_frame;
-
- }
- else
- {
- if ( this )
- mlt_producer_close( this );
- if ( real_producer )
- mlt_producer_close( real_producer );
- if ( filter )
- mlt_filter_close( filter );
-
- this = NULL;
- }
- return this;
-}
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