* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include "producer_framebuffer.h"
#include <framework/mlt.h>
#include <stdio.h>
// Get the filter object and properties
mlt_producer producer = mlt_frame_pop_service( this );
- mlt_frame first_frame = mlt_frame_pop_service( this );
-
- mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
+ int index = ( int )mlt_frame_pop_service( this );
+ mlt_properties 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_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
+
+ // Get producer parameters
+ int strobe = mlt_properties_get_int( properties, "strobe" );
+ int freeze = mlt_properties_get_int( properties, "freeze" );
+ int freeze_after = mlt_properties_get_int( properties, "freeze_after" );
+ int freeze_before = mlt_properties_get_int( properties, "freeze_before" );
+
+ // Determine the position
+ mlt_position first_position = (first_frame != NULL) ? mlt_frame_get_position( first_frame ) : -1;
+ mlt_position need_first = freeze;
+
+ if ( !freeze || freeze_after || freeze_before )
+ {
+ double prod_speed = mlt_properties_get_double( properties, "_speed" );
+ double actual_position = prod_speed * (double) mlt_producer_position( producer );
+
+ if ( mlt_properties_get_int( properties, "reverse" ) )
+ actual_position = mlt_producer_get_playtime( producer ) - actual_position;
+ if ( strobe < 2 )
+ {
+ need_first = floor( actual_position );
+ }
+ else
+ {
+ // Strobe effect wanted, calculate frame position
+ need_first = floor( actual_position );
+ need_first -= need_first % strobe;
+ }
+ if ( freeze )
+ {
+ if ( freeze_after && need_first > freeze ) need_first = freeze;
+ else if ( freeze_before && need_first < freeze ) need_first = freeze;
+ }
+ }
+
+ // Determine output buffer size
*width = mlt_properties_get_int( frame_properties, "width" );
*height = mlt_properties_get_int( frame_properties, "height" );
-
- // image stride
- int size, xstride, ystride;
- switch( *format ){
- case mlt_image_yuv422:
- size = *width * *height * 2;
- xstride = 2;
- ystride = 2 * *width;
+
+ int size;
+ switch ( *format )
+ {
+ case mlt_image_yuv420p:
+ size = *width * 3 * ( *height + 1 ) / 2;
+ break;
+ case mlt_image_rgb24:
+ size = *width * ( *height + 1 ) * 3;
+ break;
+ case mlt_image_rgb24a:
+ case mlt_image_opengl:
+ size = *width * ( *height + 1 ) * 4;
break;
default:
- fprintf(stderr, "Unsupported image format\n");
- return -1;
+ *format = mlt_image_yuv422;
+ size = *width * ( *height + 1 ) * 2;
+ break;
}
+
- uint8_t *output = mlt_properties_get_data( producer_properties, "output_buffer", 0 );
- if( output == NULL )
+ // Get output buffer
+ int buffersize = 0;
+ uint8_t *output = mlt_properties_get_data( properties, "output_buffer", &buffersize );
+ if( buffersize == 0 || buffersize != size)
{
- output = mlt_pool_alloc( size );
+ // invalidate cached frame
+ first_position = -1;
+ }
- // Let someone else clean up
- mlt_properties_set_data( producer_properties, "output_buffer", output, size, mlt_pool_release, NULL );
+ if ( need_first != first_position )
+ {
+ // invalidate cached frame
+ first_position = -1;
+
+ // Bust the cached frame
+ mlt_properties_set_data( properties, "first_frame", NULL, 0, NULL, NULL );
+ first_frame = NULL;
}
- uint8_t *first_image = mlt_properties_get_data( first_frame_properties, "image", NULL );
+ if (output != NULL && first_position != -1) {
+ // Using the cached frame
+ uint8_t *image_copy = mlt_pool_alloc( size );
+ memcpy( image_copy, output, size );
+
+ // Set the output image
+ *image = image_copy;
+ mlt_properties_set_data( frame_properties, "image", image_copy, size, ( mlt_destructor )mlt_pool_release, NULL );
- // which frames are buffered?
+ // Make sure that no further scaling is done
+ mlt_properties_set( frame_properties, "rescale.interps", "none" );
+ mlt_properties_set( frame_properties, "scale", "off" );
+ return 0;
+ }
+
+ // Get the cached frame
+ if ( first_frame == NULL )
+ {
+ // Get the frame to cache from the real producer
+ mlt_producer real_producer = mlt_properties_get_data( properties, "producer", NULL );
+
+ // Seek the producer to the correct place
+ mlt_producer_seek( real_producer, need_first );
- int error = 0;
+ // Get the frame
+ mlt_service_get_frame( MLT_PRODUCER_SERVICE( real_producer ), &first_frame, index );
+
+ // Cache the frame
+ mlt_properties_set_data( properties, "first_frame", first_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
+ }
+ mlt_properties first_frame_properties = MLT_FRAME_PROPERTIES( first_frame );
+
+ // Which frames are buffered?
+ uint8_t *first_image = mlt_properties_get_data( first_frame_properties, "image", NULL );
if( first_image == NULL )
{
- error = mlt_frame_get_image( first_frame, &first_image, format, width, height, writable );
+ mlt_properties_set_double( first_frame_properties, "consumer_aspect_ratio", mlt_properties_get_double( frame_properties, "consumer_aspect_ratio" ) );
+ mlt_properties_set( first_frame_properties, "rescale.interp", mlt_properties_get( frame_properties, "rescale.interp" ) );
+
+ int error = mlt_frame_get_image( first_frame, &first_image, format, width, height, writable );
- if( error != 0 ) {
+ if ( error != 0 ) {
fprintf(stderr, "first_image == NULL get image died\n");
return error;
}
+ output = mlt_pool_alloc( size );
+ memcpy( output, first_image, size );
+ // Let someone else clean up
+ mlt_properties_set_data( properties, "output_buffer", output, size, mlt_pool_release, NULL );
+
}
- // Start with a base image
- memcpy( output, first_image, size );
+ // Create a copy
+ uint8_t *image_copy = mlt_pool_alloc( size );
+ memcpy( image_copy, first_image, size );
- *image = output;
- mlt_properties_set_data( frame_properties, "image", output, size, NULL, NULL );
+ // Set the output image
+ *image = image_copy;
+ mlt_properties_set_data( frame_properties, "image", *image, size, ( mlt_destructor )mlt_pool_release, 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 );
-
return 0;
}
static int producer_get_frame( mlt_producer this, mlt_frame_ptr frame, int index )
{
// Construct a new frame
- *frame = mlt_frame_init( );
- mlt_properties properties = MLT_PRODUCER_PROPERTIES(this);
-
+ *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( this ) );
if( frame != NULL )
{
- mlt_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
-
- mlt_position first_position = (first_frame != NULL) ? mlt_frame_get_position( first_frame ) : -1;
-
- // Get the real producer
- mlt_producer real_producer = mlt_properties_get_data( properties, "producer", NULL );
-
- // get properties
- int strobe = mlt_properties_get_int( properties, "strobe");
- int freeze = mlt_properties_get_int( properties, "freeze");
- int freeze_after = mlt_properties_get_int( properties, "freeze_after");
- int freeze_before = mlt_properties_get_int( properties, "freeze_before");
-
- mlt_position need_first;
-
- if (!freeze || freeze_after || freeze_before) {
- double prod_speed = mlt_properties_get_double( properties, "_speed");
- double actual_position = prod_speed * (double) mlt_producer_position( this );
-
- if (mlt_properties_get_int( properties, "reverse")) actual_position = mlt_producer_get_playtime(this) - actual_position;
-
- if (strobe < 2)
- {
- need_first = floor( actual_position );
- }
- else
- {
- // Strobe effect wanted, calculate frame position
- need_first = floor( actual_position );
- need_first -= need_first%strobe;
- }
- if (freeze)
- {
- if (freeze_after && need_first > freeze) need_first = freeze;
- else if (freeze_before && need_first < freeze) need_first = freeze;
- }
- }
- else need_first = freeze;
-
- if( need_first != first_position )
- {
- mlt_frame_close( first_frame );
- first_position = -1;
- first_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 );
-
- double ratio = (double) mlt_properties_get_int( MLT_FRAME_PROPERTIES( first_frame ), "width" ) / (double) mlt_properties_get_int( MLT_FRAME_PROPERTIES( first_frame ), "height" ) / ( (double) mlt_properties_get_int(MLT_FRAME_PROPERTIES( *frame ), "width" ) / (double) mlt_properties_get_int( MLT_FRAME_PROPERTIES( *frame ), "height" ));
- }
-
- // Make sure things are in their place
- mlt_properties_set_data( properties, "first_frame", first_frame, 0, NULL, NULL );
-
// 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, (void*) index );
mlt_frame_push_service( *frame, this );
mlt_frame_push_service( *frame, framebuffer_get_image );
-
// Give the returned frame temporal identity
mlt_frame_set_position( *frame, mlt_producer_position( this ) );
- mlt_properties_set_double( MLT_FRAME_PROPERTIES(*frame), "aspect_ratio", mlt_properties_get_double( properties, "ratio_fix" ));
}
return 0;
}
-mlt_producer producer_framebuffer_init( char *arg )
+mlt_producer producer_framebuffer_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
{
-
+ if ( !arg ) return NULL;
mlt_producer this = NULL;
this = calloc( 1, sizeof( struct mlt_producer_s ) );
- mlt_producer_init( this, NULL );
+ mlt_producer_init( this, NULL );
- // Wrap fezzik
+ // Wrap loader
mlt_producer real_producer;
// Check if a speed was specified.
/**
- * Speed must be appended to the filename with ':'. To play your video at 50%:
- inigo framebuffer:my_video.mpg:0.5
+ * Speed must be appended to the filename with '?'. To play your video at 50%:
+ melt framebuffer:my_video.mpg?0.5
* Stroboscope effect can be obtained by adding a stobe=x parameter, where
x is the number of frames that will be ignored.
**/
- double speed;
-
- int count;
+ double speed = 0.0;
char *props = strdup( arg );
- char *ptr = props;
- count = strcspn( ptr, ":" );
- ptr[count] = '\0';
-
- real_producer = mlt_factory_producer( "fezzik", props );
-
- ptr += count + 1;
- ptr += strspn( ptr, ":" );
- count = strcspn( ptr, ":" );
- ptr[count] = '\0';
- speed = atof(ptr);
- free( props );
+ char *ptr = strrchr( props, '?' );
- if (speed == 0.0) speed = 1.0;
+ if ( ptr )
+ {
+ speed = atof( ptr + 1 );
+ if ( speed != 0.0 )
+ // If speed was valid, then strip it and the delimiter.
+ // Otherwise, an invalid speed probably means this '?' was not a delimiter.
+ *ptr = '\0';
+ }
+
+ real_producer = mlt_factory_producer( profile, NULL, props );
+ free( props );
+ if (speed == 0.0) speed = 1.0;
if ( this != NULL && real_producer != NULL)
{
// 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);
+ mlt_properties_set( properties, "resource", arg);
// Store the producer and fitler
mlt_properties_set_data( properties, "producer", real_producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
// Grab some stuff from the real_producer
- mlt_properties_pass_list( properties, MLT_PRODUCER_PROPERTIES( real_producer ), "length,resource,width,height" );
+ mlt_properties_pass_list( properties, MLT_PRODUCER_PROPERTIES( real_producer ), "length, width,height" );
+ if ( speed < 0 )
+ {
+ speed = -speed;
+ mlt_properties_set_int( properties, "reverse", 1 );
+ }
if ( speed != 1.0 )
{
- double real_length = (double) mlt_producer_get_length( real_producer );
- mlt_properties_set_position( properties, "length", real_length / speed );
+ double real_length = ( (double) mlt_producer_get_length( real_producer ) ) / speed;
+ mlt_properties_set_position( properties, "length", real_length );
}
+ mlt_properties_set_position( properties, "out", mlt_producer_get_length( this ) - 1 );
// Since we control the seeking, prevent it from seeking on its own
mlt_producer_set_speed( real_producer, 0 );
projects / mlt / blobdiff