--- /dev/null
+/*
+ * consumer_sdl_preview.c -- A Simple DirectMedia Layer consumer
+ * Copyright (C) 2004-2005 Ushodaya Enterprises Limited
+ * Author: Charles Yates
+ *
+ * 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 "consumer_sdl.h"
+#include <framework/mlt_frame.h>
+#include <framework/mlt_factory.h>
+#include <framework/mlt_producer.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_syswm.h>
+
+typedef struct consumer_sdl_s *consumer_sdl;
+
+struct consumer_sdl_s
+{
+ struct mlt_consumer_s parent;
+ mlt_consumer play;
+ mlt_consumer still;
+ pthread_t thread;
+ int joined;
+ int running;
+ int sdl_flags;
+ double last_speed;
+};
+
+/** Forward references to static functions.
+*/
+
+static int consumer_start( mlt_consumer parent );
+static int consumer_stop( mlt_consumer parent );
+static int consumer_is_stopped( mlt_consumer parent );
+static void consumer_close( mlt_consumer parent );
+static void *consumer_thread( void * );
+static void consumer_frame_show_cb( mlt_consumer sdl, mlt_consumer this, mlt_frame frame );
+
+mlt_consumer consumer_sdl_preview_init( char *arg )
+{
+ consumer_sdl this = calloc( sizeof( struct consumer_sdl_s ), 1 );
+ if ( this != NULL && mlt_consumer_init( &this->parent, this ) == 0 )
+ {
+ // Get the parent consumer object
+ mlt_consumer parent = &this->parent;
+ this->play = mlt_factory_consumer( "sdl", arg );
+ this->still = mlt_factory_consumer( "sdl_still", arg );
+ mlt_properties_set( mlt_consumer_properties( parent ), "real_time", "0" );
+ parent->close = consumer_close;
+ parent->start = consumer_start;
+ parent->stop = consumer_stop;
+ parent->is_stopped = consumer_is_stopped;
+ this->joined = 1;
+ mlt_events_listen( mlt_consumer_properties( this->play ), this, "consumer-frame-show", ( mlt_listener )consumer_frame_show_cb );
+ mlt_events_listen( mlt_consumer_properties( this->still ), this, "consumer-frame-show", ( mlt_listener )consumer_frame_show_cb );
+ return parent;
+ }
+ free( this );
+ return NULL;
+}
+
+void consumer_frame_show_cb( mlt_consumer sdl, mlt_consumer parent, mlt_frame frame )
+{
+ consumer_sdl this = parent->child;
+ this->last_speed = mlt_properties_get_double( mlt_frame_properties( frame ), "_speed" );
+ mlt_events_fire( mlt_consumer_properties( parent ), "consumer-frame-show", frame, NULL );
+}
+
+static int consumer_start( mlt_consumer parent )
+{
+ consumer_sdl this = parent->child;
+
+ if ( !this->running )
+ {
+ pthread_attr_t thread_attributes;
+
+ consumer_stop( parent );
+
+ this->running = 1;
+ this->joined = 0;
+ this->last_speed = 1;
+
+ // Inherit the scheduling priority
+ pthread_attr_init( &thread_attributes );
+ pthread_attr_setinheritsched( &thread_attributes, PTHREAD_INHERIT_SCHED );
+
+ pthread_create( &this->thread, &thread_attributes, consumer_thread, this );
+ }
+
+ return 0;
+}
+
+static int consumer_stop( mlt_consumer parent )
+{
+ // Get the actual object
+ consumer_sdl this = parent->child;
+
+ if ( this->joined == 0 )
+ {
+ // Kill the thread and clean up
+ this->running = 0;
+
+ pthread_join( this->thread, NULL );
+ this->joined = 1;
+ }
+
+ return 0;
+}
+
+static int consumer_is_stopped( mlt_consumer parent )
+{
+ consumer_sdl this = parent->child;
+ return !this->running;
+}
+
+static void *consumer_thread( void *arg )
+{
+ // Identify the arg
+ consumer_sdl this = arg;
+
+ // Get the consumer
+ mlt_consumer consumer = &this->parent;
+
+ // internal intialization
+ int first = 1;
+ mlt_frame frame = NULL;
+
+ // properties
+ mlt_properties properties = mlt_consumer_properties( consumer );
+ mlt_properties play = mlt_consumer_properties( this->play );
+ mlt_properties still = mlt_consumer_properties( this->still );
+
+ if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE ) < 0 )
+ {
+ fprintf( stderr, "Failed to initialize SDL: %s\n", SDL_GetError() );
+ return NULL;
+ }
+
+ SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL );
+ SDL_EnableUNICODE( 1 );
+
+ // Inform child consumers that we control the sdl
+ mlt_properties_set_int( play, "sdl_started", 1 );
+ mlt_properties_set_int( still, "sdl_started", 1 );
+
+ // Pass properties down
+ mlt_properties_set_data( play, "transport_producer", mlt_properties_get_data( properties, "transport_producer", NULL ), 0, NULL, NULL );
+ mlt_properties_set_data( still, "transport_producer", mlt_properties_get_data( properties, "transport_producer", NULL ), 0, NULL, NULL );
+ mlt_properties_set_data( play, "transport_callback", mlt_properties_get_data( properties, "transport_callback", NULL ), 0, NULL, NULL );
+ mlt_properties_set_data( still, "transport_callback", mlt_properties_get_data( properties, "transport_callback", NULL ), 0, NULL, NULL );
+ mlt_properties_set( play, "rescale", mlt_properties_get( properties, "rescale" ) );
+ mlt_properties_set( still, "rescale", mlt_properties_get( properties, "rescale" ) );
+ mlt_properties_set( play, "width", mlt_properties_get( properties, "width" ) );
+ mlt_properties_set( still, "width", mlt_properties_get( properties, "width" ) );
+ mlt_properties_set( play, "height", mlt_properties_get( properties, "height" ) );
+ mlt_properties_set( still, "height", mlt_properties_get( properties, "height" ) );
+
+ mlt_properties_pass( play, mlt_consumer_properties( consumer ), "play." );
+ mlt_properties_pass( still, mlt_consumer_properties( consumer ), "still." );
+
+ // Loop until told not to
+ while( this->running )
+ {
+ // Get a frame from the attached producer
+ frame = mlt_consumer_get_frame( consumer );
+
+ // Ensure that we have a frame
+ if ( frame != NULL )
+ {
+ // Get the speed of the frame
+ double speed = mlt_properties_get_double( mlt_frame_properties( frame ), "_speed" );
+
+ // Make sure the recipient knows that this frame isn't really rendered
+ mlt_properties_set_int( mlt_frame_properties( frame ), "rendered", 0 );
+
+ if ( !first && mlt_consumer_is_stopped( this->play ) && mlt_consumer_is_stopped( this->still ) )
+ {
+ this->running = 0;
+ mlt_frame_close( frame );
+ }
+ else if ( this->last_speed != 1 )
+ {
+ if ( !mlt_consumer_is_stopped( this->play ) )
+ mlt_consumer_stop( this->play );
+ if ( mlt_consumer_is_stopped( this->still ) )
+ {
+ this->last_speed = speed;
+ mlt_consumer_start( this->still );
+ }
+ mlt_consumer_put_frame( this->still, frame );
+ }
+ else
+ {
+ if ( !mlt_consumer_is_stopped( this->still ) )
+ mlt_consumer_stop( this->still );
+ if ( mlt_consumer_is_stopped( this->play ) )
+ {
+ this->last_speed = speed;
+ mlt_consumer_start( this->play );
+ }
+ mlt_consumer_put_frame( this->play, frame );
+ }
+ first = 0;
+ }
+ }
+
+ mlt_consumer_stop( this->play );
+ mlt_consumer_stop( this->still );
+
+ SDL_Quit( );
+
+ return NULL;
+}
+
+/** Callback to allow override of the close method.
+*/
+
+static void consumer_close( mlt_consumer parent )
+{
+ // Get the actual object
+ consumer_sdl this = parent->child;
+
+ // Stop the consumer
+ mlt_consumer_stop( parent );
+
+ // Now clean up the rest
+ mlt_consumer_close( parent );
+
+ // Close the child consumers
+ mlt_consumer_close( this->play );
+ mlt_consumer_close( this->still );
+
+ // Finally clean up this
+ free( this );
+}
--- /dev/null
+/*
+ * consumer_sdl_still.c -- A Simple DirectMedia Layer consumer
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates
+ *
+ * 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 "consumer_sdl.h"
+#include <framework/mlt_frame.h>
+#include <framework/mlt_deque.h>
+#include <framework/mlt_factory.h>
+#include <framework/mlt_filter.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_syswm.h>
+#include <sys/time.h>
+
+/** This classes definition.
+*/
+
+typedef struct consumer_sdl_s *consumer_sdl;
+
+struct consumer_sdl_s
+{
+ struct mlt_consumer_s parent;
+ mlt_properties properties;
+ pthread_t thread;
+ int joined;
+ int running;
+ int window_width;
+ int window_height;
+ float aspect_ratio;
+ float display_aspect;
+ double last_frame_aspect;
+ int width;
+ int height;
+ int playing;
+ int sdl_flags;
+ SDL_Surface *sdl_screen;
+ SDL_Rect rect;
+ uint8_t *buffer;
+ int last_position;
+ mlt_producer last_producer;
+};
+
+/** Forward references to static functions.
+*/
+
+static int consumer_start( mlt_consumer parent );
+static int consumer_stop( mlt_consumer parent );
+static int consumer_is_stopped( mlt_consumer parent );
+static void consumer_close( mlt_consumer parent );
+static void *consumer_thread( void * );
+static int consumer_get_dimensions( int *width, int *height );
+static void consumer_sdl_event( mlt_listener listener, mlt_properties owner, mlt_service this, void **args );
+
+/** This is what will be called by the factory - anything can be passed in
+ via the argument, but keep it simple.
+*/
+
+mlt_consumer consumer_sdl_still_init( char *arg )
+{
+ // Create the consumer object
+ consumer_sdl this = calloc( sizeof( struct consumer_sdl_s ), 1 );
+
+ // If no malloc'd and consumer init ok
+ if ( this != NULL && mlt_consumer_init( &this->parent, this ) == 0 )
+ {
+ // Get the parent consumer object
+ mlt_consumer parent = &this->parent;
+
+ // Attach a colour space converter
+ mlt_filter filter = mlt_factory_filter( "avcolour_space", NULL );
+ mlt_properties_set_int( mlt_filter_properties( filter ), "forced", mlt_image_yuv422 );
+ mlt_service_attach( mlt_consumer_service( &this->parent ), filter );
+ mlt_filter_close( filter );
+
+ // We have stuff to clean up, so override the close method
+ parent->close = consumer_close;
+
+ // get a handle on properties
+ mlt_service service = mlt_consumer_service( parent );
+ this->properties = mlt_service_properties( service );
+
+ // Default scaler (for now we'll use nearest)
+ mlt_properties_set( this->properties, "rescale", "nearest" );
+
+ // We're always going to run this in non-realtime mode
+ mlt_properties_set( this->properties, "real_time", "0" );
+
+ // Default progressive true
+ mlt_properties_set_int( this->properties, "progressive", 1 );
+
+ // Get sample aspect ratio
+ this->aspect_ratio = mlt_properties_get_double( this->properties, "aspect_ratio" );
+
+ // Ensure we don't join on a non-running object
+ this->joined = 1;
+
+ // Default display aspect ratio
+ this->display_aspect = 4.0 / 3.0;
+
+ // process actual param
+ if ( arg == NULL || sscanf( arg, "%dx%d", &this->width, &this->height ) != 2 )
+ {
+ this->width = mlt_properties_get_int( this->properties, "width" );
+ this->height = mlt_properties_get_int( this->properties, "height" );
+ }
+
+ // Default window size
+ this->window_width = ( float )this->height * this->display_aspect;
+ this->window_height = this->height;
+
+ // Set the sdl flags
+ this->sdl_flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_RESIZABLE | SDL_DOUBLEBUF;
+
+ // Allow thread to be started/stopped
+ parent->start = consumer_start;
+ parent->stop = consumer_stop;
+ parent->is_stopped = consumer_is_stopped;
+
+ // Register specific events
+ mlt_events_register( this->properties, "consumer-sdl-event", ( mlt_transmitter )consumer_sdl_event );
+
+ // Return the consumer produced
+ return parent;
+ }
+
+ // malloc or consumer init failed
+ free( this );
+
+ // Indicate failure
+ return NULL;
+}
+
+static void consumer_sdl_event( mlt_listener listener, mlt_properties owner, mlt_service this, void **args )
+{
+ if ( listener != NULL )
+ listener( owner, this, ( SDL_Event * )args[ 0 ] );
+}
+
+static int consumer_start( mlt_consumer parent )
+{
+ consumer_sdl this = parent->child;
+
+ if ( !this->running )
+ {
+ pthread_attr_t thread_attributes;
+
+ consumer_stop( parent );
+
+ this->last_position = -1;
+ this->running = 1;
+ this->joined = 0;
+
+ // Allow the user to force resizing to window size
+ if ( mlt_properties_get_int( this->properties, "resize" ) )
+ {
+ mlt_properties_set_int( this->properties, "width", this->width );
+ mlt_properties_set_int( this->properties, "height", this->height );
+ }
+
+ // Inherit the scheduling priority
+ pthread_attr_init( &thread_attributes );
+ pthread_attr_setinheritsched( &thread_attributes, PTHREAD_INHERIT_SCHED );
+
+ pthread_create( &this->thread, &thread_attributes, consumer_thread, this );
+ }
+
+ return 0;
+}
+
+static int consumer_stop( mlt_consumer parent )
+{
+ // Get the actual object
+ consumer_sdl this = parent->child;
+
+ if ( this->joined == 0 )
+ {
+ // Kill the thread and clean up
+ this->running = 0;
+
+ pthread_join( this->thread, NULL );
+ this->joined = 1;
+
+ mlt_frame_close( parent->put );
+ parent->put = NULL;
+ }
+
+ return 0;
+}
+
+static int consumer_is_stopped( mlt_consumer parent )
+{
+ consumer_sdl this = parent->child;
+ return !this->running;
+}
+
+static int sdl_lock_display( )
+{
+ SDL_Surface *screen = SDL_GetVideoSurface( );
+ return screen != NULL && ( !SDL_MUSTLOCK( screen ) || SDL_LockSurface( screen ) >= 0 );
+}
+
+static void sdl_unlock_display( )
+{
+ SDL_Surface *screen = SDL_GetVideoSurface( );
+ if ( screen != NULL && SDL_MUSTLOCK( screen ) )
+ SDL_UnlockSurface( screen );
+}
+
+static int consumer_play_video( consumer_sdl this, mlt_frame frame )
+{
+ // Get the properties of this consumer
+ mlt_properties properties = this->properties;
+
+ mlt_image_format vfmt = mlt_image_rgb24;
+ int width = this->width, height = this->height;
+ uint8_t *image;
+ int changed = 0;
+
+
+ // Handle events
+ if ( this->sdl_screen != NULL )
+ {
+ SDL_Event event;
+
+ changed = consumer_get_dimensions( &this->window_width, &this->window_height );
+
+ while ( SDL_PollEvent( &event ) )
+ {
+ mlt_events_fire( this->properties, "consumer-sdl-event", &event, NULL );
+
+ switch( event.type )
+ {
+ case SDL_VIDEORESIZE:
+ this->window_width = event.resize.w;
+ this->window_height = event.resize.h;
+ changed = 1;
+ break;
+ case SDL_QUIT:
+ this->running = 0;
+ break;
+ case SDL_KEYDOWN:
+ {
+ mlt_producer producer = mlt_properties_get_data( properties, "transport_producer", NULL );
+ char keyboard[ 2 ] = " ";
+ void (*callback)( mlt_producer, char * ) = mlt_properties_get_data( properties, "transport_callback", NULL );
+ if ( callback != NULL && producer != NULL && event.key.keysym.unicode < 0x80 && event.key.keysym.unicode > 0 )
+ {
+ keyboard[ 0 ] = ( char )event.key.keysym.unicode;
+ callback( producer, keyboard );
+ }
+ }
+ break;
+ }
+ }
+ }
+
+ if ( width != this->width || height != this->height ||
+ ( ( int )( this->last_frame_aspect * 1000 ) != ( int )( mlt_frame_get_aspect_ratio( frame ) * 1000 ) &&
+ ( mlt_frame_get_aspect_ratio( frame ) != 1.0 || this->last_frame_aspect == 0.0 ) ) )
+
+ {
+ this->width = width;
+ this->height = height;
+ this->last_frame_aspect = mlt_frame_get_aspect_ratio( frame );
+ changed = 1;
+ }
+
+ if ( this->sdl_screen == NULL || changed )
+ {
+ // Determine frame's display aspect ratio
+ float frame_aspect = mlt_frame_get_aspect_ratio( frame ) * this->width / this->height;
+
+ // Determine window's new display aspect ratio
+ float this_aspect = ( float )this->window_width / this->window_height;
+
+ // If using hardware scaler
+ if ( mlt_properties_get( properties, "rescale" ) != NULL &&
+ !strcmp( mlt_properties_get( properties, "rescale" ), "none" ) )
+ {
+ // Special case optimisation to negate odd effect of sample aspect ratio
+ // not corresponding exactly with image resolution.
+ if ( ( (int)( this_aspect * 1000 ) == (int)( this->display_aspect * 1000 ) ) &&
+ ( (int)( mlt_frame_get_aspect_ratio( frame ) * 1000 ) == (int)( this->aspect_ratio * 1000 ) ) )
+ {
+ this->rect.w = this->window_width;
+ this->rect.h = this->window_height;
+ }
+ else
+ {
+ // Use hardware scaler to normalise display aspect ratio
+ this->rect.w = frame_aspect / this_aspect * this->window_width;
+ this->rect.h = this->window_height;
+ if ( this->rect.w > this->window_width )
+ {
+ this->rect.w = this->window_width;
+ this->rect.h = this_aspect / frame_aspect * this->window_height;
+ }
+ }
+ }
+ // Special case optimisation to negate odd effect of sample aspect ratio
+ // not corresponding exactly with image resolution.
+ else if ( (int)( this_aspect * 1000 ) == (int)( this->display_aspect * 1000 ) )
+ {
+ this->rect.w = this->window_width;
+ this->rect.h = this->window_height;
+ }
+ // Use hardware scaler to normalise sample aspect ratio
+ else if ( this->window_height * this->display_aspect > this->window_width )
+ {
+ this->rect.w = this->window_width;
+ this->rect.h = this->window_width / this->display_aspect;
+ }
+ else
+ {
+ this->rect.w = this->window_height * this->display_aspect;
+ this->rect.h = this->window_height;
+ }
+
+ this->rect.x = ( this->window_width - this->rect.w ) / 2;
+ this->rect.y = ( this->window_height - this->rect.h ) / 2;
+
+ mlt_properties_set_int( this->properties, "rect_x", this->rect.x );
+ mlt_properties_set_int( this->properties, "rect_y", this->rect.y );
+ mlt_properties_set_int( this->properties, "rect_w", this->rect.w );
+ mlt_properties_set_int( this->properties, "rect_h", this->rect.h );
+
+ // open SDL window
+ sdl_lock_display();
+ this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, 16, this->sdl_flags );
+ consumer_get_dimensions( &this->window_width, &this->window_height );
+ sdl_unlock_display();
+ changed = 1;
+ }
+
+ if ( mlt_properties_get_int( properties, "changed" ) )
+ {
+ sdl_lock_display();
+ this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, 16, this->sdl_flags );
+ SDL_SetClipRect( this->sdl_screen, &this->rect );
+ SDL_Flip( this->sdl_screen );
+ consumer_get_dimensions( &this->window_width, &this->window_height );
+ sdl_unlock_display();
+ mlt_properties_set_int( properties, "changed", 0 );
+ changed = 1;
+ }
+
+ if ( changed == 0 &&
+ this->last_position == mlt_frame_get_position( frame ) &&
+ this->last_producer == mlt_properties_get_data( mlt_frame_properties( frame ), "_producer", NULL ) )
+ return 0;
+
+ // Update last frame shown info
+ this->last_position = mlt_frame_get_position( frame );
+ this->last_producer = mlt_properties_get_data( mlt_frame_properties( frame ), "_producer", NULL );
+
+ // Get the image, width and height
+ mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
+ mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
+
+ if ( this->sdl_screen != NULL )
+ {
+ sdl_lock_display();
+
+ // Calculate the scan length
+ int scanlength = this->sdl_screen->pitch / 2;
+
+ // Obtain the clip rect from the screen
+ SDL_Rect rect = this->rect;
+
+ // Generate the affine transform scaling values
+ float scale_width = ( float )width / ( float )rect.w;
+ float scale_height = ( float )height / ( float )rect.h;
+
+ // Constants defined for clarity and optimisation
+ int stride = width * 3;
+ uint16_t *start = ( uint16_t * )this->sdl_screen->pixels + rect.y * scanlength + rect.x;
+
+ int y;
+
+ // Iterate through the screen using a very basic scaling algorithm
+ for ( y = 0; y < rect.h; y ++ )
+ {
+ // Obtain the pointer to the current screen row
+ uint16_t *p = start;
+
+ // Calculate the row_index
+ int row_index = ( int )( scale_height * y );
+
+ // Calculate the pointer for the y offset (positioned on B instead of R)
+ uint8_t *row = image + stride * row_index;
+
+ int x;
+
+ // Iterate through the screen width
+ for ( x = 0; x < rect.w; x ++ )
+ {
+ // Obtain the pixel pointer
+ uint8_t *q = row + ( ( int )( scale_width * x ) * 3 );
+
+ // Map the BGR colour from the frame to the SDL format
+ *p ++ = SDL_MapRGB( this->sdl_screen->format, *q, *( q + 1 ), *( q + 2 ) );
+ }
+
+ // Move to the next row
+ start += scanlength;
+ }
+
+ // Flip it into sight
+ SDL_Flip( this->sdl_screen );
+
+ sdl_unlock_display();
+ }
+
+ return 0;
+}
+
+/** Threaded wrapper for pipe.
+*/
+
+static void *consumer_thread( void *arg )
+{
+ // Identify the arg
+ consumer_sdl this = arg;
+
+ // Get the consumer
+ mlt_consumer consumer = &this->parent;
+
+ // internal intialization
+ mlt_frame frame = NULL;
+ struct timespec tm = { 0, 1000 };
+
+ if ( mlt_properties_get_int( mlt_consumer_properties( consumer ), "sdl_started" ) == 0 )
+ {
+ if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE ) < 0 )
+ {
+ fprintf( stderr, "Failed to initialize SDL: %s\n", SDL_GetError() );
+ return NULL;
+ }
+
+ SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL );
+ SDL_EnableUNICODE( 1 );
+ }
+ else
+ {
+ this->sdl_screen = SDL_GetVideoSurface( );
+ mlt_properties_set_int( mlt_consumer_properties( consumer ), "changed", 1 );
+ }
+
+ // Loop until told not to
+ while( this->running )
+ {
+ // Get a frame from the attached producer
+ frame = mlt_consumer_rt_frame( consumer );
+
+ // Ensure that we have a frame
+ if ( frame != NULL )
+ {
+ consumer_play_video( this, frame );
+ mlt_frame_close( frame );
+ nanosleep( &tm, NULL );
+ }
+ }
+
+ if ( mlt_properties_get_int( mlt_consumer_properties( consumer ), "sdl_started" ) == 0 )
+ SDL_Quit( );
+
+ this->sdl_screen = NULL;
+
+ return NULL;
+}
+
+static int consumer_get_dimensions( int *width, int *height )
+{
+ int changed = 0;
+
+ // SDL windows manager structure
+ SDL_SysWMinfo wm;
+
+ // Specify the SDL Version
+ SDL_VERSION( &wm.version );
+
+ // Lock the display
+ sdl_lock_display();
+
+ // Get the wm structure
+ if ( SDL_GetWMInfo( &wm ) == 1 )
+ {
+ // Check that we have the X11 wm
+ if ( wm.subsystem == SDL_SYSWM_X11 )
+ {
+ // Get the SDL window
+ Window window = wm.info.x11.window;
+
+ // Get the display session
+ Display *display = wm.info.x11.display;
+
+ // Get the window attributes
+ XWindowAttributes attr;
+ XGetWindowAttributes( display, window, &attr );
+
+ // Determine whether window has changed
+ changed = *width != attr.width || *height != attr.height;
+
+ // Return width and height
+ *width = attr.width;
+ *height = attr.height;
+ }
+ }
+
+ // Unlock the display
+ sdl_lock_display();
+
+ return changed;
+}
+
+/** Callback to allow override of the close method.
+*/
+
+static void consumer_close( mlt_consumer parent )
+{
+ // Get the actual object
+ consumer_sdl this = parent->child;
+
+ // Stop the consumer
+ mlt_consumer_stop( parent );
+
+ // Now clean up the rest
+ mlt_consumer_close( parent );
+
+ // Finally clean up this
+ free( this );
+}
projects / mlt / commitdiff