2 * consumer_sdl.c -- A Simple DirectMedia Layer consumer
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Dan Dennedy <dan@dennedy.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <framework/mlt_consumer.h>
22 #include <framework/mlt_frame.h>
23 #include <framework/mlt_deque.h>
24 #include <framework/mlt_factory.h>
25 #include <framework/mlt_filter.h>
31 #include <SDL/SDL_syswm.h>
34 /** This classes definition.
37 typedef struct consumer_sdl_s
*consumer_sdl
;
41 struct mlt_consumer_s parent
;
42 mlt_properties properties
;
47 uint8_t audio_buffer
[ 4096 * 10 ];
49 pthread_mutex_t audio_mutex
;
50 pthread_cond_t audio_cond
;
51 pthread_mutex_t video_mutex
;
52 pthread_cond_t video_cond
;
61 SDL_Surface
*sdl_screen
;
62 SDL_Overlay
*sdl_overlay
;
69 /** Forward references to static functions.
72 static int consumer_start( mlt_consumer parent
);
73 static int consumer_stop( mlt_consumer parent
);
74 static int consumer_is_stopped( mlt_consumer parent
);
75 static void consumer_close( mlt_consumer parent
);
76 static void *consumer_thread( void * );
77 static int consumer_get_dimensions( int *width
, int *height
);
78 static void consumer_sdl_event( mlt_listener listener
, mlt_properties owner
, mlt_service
this, void **args
);
80 /** This is what will be called by the factory - anything can be passed in
81 via the argument, but keep it simple.
84 mlt_consumer
consumer_sdl_init( mlt_profile profile
, mlt_service_type type
, const char *id
, char *arg
)
86 // Create the consumer object
87 consumer_sdl
this = calloc( sizeof( struct consumer_sdl_s
), 1 );
89 // If no malloc'd and consumer init ok
90 if ( this != NULL
&& mlt_consumer_init( &this->parent
, this, profile
) == 0 )
93 this->queue
= mlt_deque_init( );
95 // Get the parent consumer object
96 mlt_consumer parent
= &this->parent
;
98 // We have stuff to clean up, so override the close method
99 parent
->close
= consumer_close
;
101 // get a handle on properties
102 mlt_service service
= MLT_CONSUMER_SERVICE( parent
);
103 this->properties
= MLT_SERVICE_PROPERTIES( service
);
105 // Set the default volume
106 mlt_properties_set_double( this->properties
, "volume", 1.0 );
108 // This is the initialisation of the consumer
109 pthread_mutex_init( &this->audio_mutex
, NULL
);
110 pthread_cond_init( &this->audio_cond
, NULL
);
111 pthread_mutex_init( &this->video_mutex
, NULL
);
112 pthread_cond_init( &this->video_cond
, NULL
);
114 // Default scaler (for now we'll use nearest)
115 mlt_properties_set( this->properties
, "rescale", "nearest" );
117 // Default buffer for low latency
118 mlt_properties_set_int( this->properties
, "buffer", 1 );
120 // Default progressive true
121 mlt_properties_set_int( this->properties
, "progressive", 0 );
123 // Default audio buffer
124 mlt_properties_set_int( this->properties
, "audio_buffer", 512 );
126 // Ensure we don't join on a non-running object
129 // process actual param
130 if ( arg
== NULL
|| sscanf( arg
, "%dx%d", &this->width
, &this->height
) != 2 )
132 this->width
= mlt_properties_get_int( this->properties
, "width" );
133 this->height
= mlt_properties_get_int( this->properties
, "height" );
137 this->sdl_flags
= SDL_HWSURFACE
| SDL_ASYNCBLIT
| SDL_HWACCEL
| SDL_RESIZABLE
| SDL_DOUBLEBUF
;
139 // Allow thread to be started/stopped
140 parent
->start
= consumer_start
;
141 parent
->stop
= consumer_stop
;
142 parent
->is_stopped
= consumer_is_stopped
;
144 // Register specific events
145 mlt_events_register( this->properties
, "consumer-sdl-event", ( mlt_transmitter
)consumer_sdl_event
);
147 // Return the consumer produced
151 // malloc or consumer init failed
158 static void consumer_sdl_event( mlt_listener listener
, mlt_properties owner
, mlt_service
this, void **args
)
160 if ( listener
!= NULL
)
161 listener( owner
, this, ( SDL_Event
* )args
[ 0 ] );
164 int consumer_start( mlt_consumer parent
)
166 consumer_sdl
this = parent
->child
;
168 if ( !this->running
)
170 int video_off
= mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "video_off" );
171 int preview_off
= mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "preview_off" );
172 int display_off
= video_off
| preview_off
;
173 int audio_off
= mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "audio_off" );
174 int sdl_started
= mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "sdl_started" );
176 consumer_stop( parent
);
181 if ( mlt_properties_get_int( this->properties
, "width" ) > 0 )
182 this->width
= mlt_properties_get_int( this->properties
, "width" );
183 if ( mlt_properties_get_int( this->properties
, "height" ) > 0 )
184 this->height
= mlt_properties_get_int( this->properties
, "height" );
186 this->bpp
= mlt_properties_get_int( this->properties
, "bpp" );
188 // Attach a colour space converter
189 if ( preview_off
&& !this->filtered
)
191 mlt_profile profile
= mlt_service_profile( MLT_CONSUMER_SERVICE( parent
) );
192 mlt_filter filter
= mlt_factory_filter( profile
, "avcolour_space", NULL
);
193 mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter
), "forced", mlt_image_yuv422
);
194 mlt_service_attach( MLT_CONSUMER_SERVICE( parent
), filter
);
195 mlt_filter_close( filter
);
199 if ( sdl_started
== 0 && display_off
== 0 )
201 if ( SDL_Init( SDL_INIT_VIDEO
| SDL_INIT_NOPARACHUTE
) < 0 )
203 fprintf( stderr
, "Failed to initialize SDL: %s\n", SDL_GetError() );
207 SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY
, SDL_DEFAULT_REPEAT_INTERVAL
);
208 SDL_EnableUNICODE( 1 );
210 else if ( display_off
== 0 )
212 this->sdl_screen
= SDL_GetVideoSurface( );
215 if ( audio_off
== 0 )
216 SDL_InitSubSystem( SDL_INIT_AUDIO
);
218 // Default window size
219 double display_ratio
= mlt_properties_get_double( this->properties
, "display_ratio" );
220 this->window_width
= ( double )this->height
* display_ratio
;
221 this->window_height
= this->height
;
223 if ( this->sdl_screen
== NULL
&& display_off
== 0 )
224 this->sdl_screen
= SDL_SetVideoMode( this->window_width
, this->window_height
, 0, this->sdl_flags
);
226 pthread_create( &this->thread
, NULL
, consumer_thread
, this );
232 int consumer_stop( mlt_consumer parent
)
234 // Get the actual object
235 consumer_sdl
this = parent
->child
;
237 if ( this->joined
== 0 )
239 // Kill the thread and clean up
242 pthread_join( this->thread
, NULL
);
245 if ( this->sdl_overlay
!= NULL
)
246 SDL_FreeYUVOverlay( this->sdl_overlay
);
247 this->sdl_overlay
= NULL
;
249 if ( !mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "audio_off" ) )
251 pthread_mutex_lock( &this->audio_mutex
);
252 pthread_cond_broadcast( &this->audio_cond
);
253 pthread_mutex_unlock( &this->audio_mutex
);
254 SDL_QuitSubSystem( SDL_INIT_AUDIO
);
257 if ( mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "sdl_started" ) == 0 )
260 this->sdl_screen
= NULL
;
266 int consumer_is_stopped( mlt_consumer parent
)
268 consumer_sdl
this = parent
->child
;
269 return !this->running
;
272 static int sdl_lock_display( )
274 SDL_Surface
*screen
= SDL_GetVideoSurface( );
275 return screen
!= NULL
&& ( !SDL_MUSTLOCK( screen
) || SDL_LockSurface( screen
) >= 0 );
278 static void sdl_unlock_display( )
280 SDL_Surface
*screen
= SDL_GetVideoSurface( );
281 if ( screen
!= NULL
&& SDL_MUSTLOCK( screen
) )
282 SDL_UnlockSurface( screen
);
285 static void sdl_fill_audio( void *udata
, uint8_t *stream
, int len
)
287 consumer_sdl
this = udata
;
290 double volume
= mlt_properties_get_double( this->properties
, "volume" );
292 pthread_mutex_lock( &this->audio_mutex
);
294 // Block until audio received
295 while ( this->running
&& len
> this->audio_avail
)
296 pthread_cond_wait( &this->audio_cond
, &this->audio_mutex
);
298 if ( this->audio_avail
>= len
)
300 // Place in the audio buffer
302 SDL_MixAudio( stream
, this->audio_buffer
, len
, ( int )( ( float )SDL_MIX_MAXVOLUME
* volume
) );
304 memcpy( stream
, this->audio_buffer
, len
);
306 // Remove len from the audio available
307 this->audio_avail
-= len
;
309 // Remove the samples
310 memmove( this->audio_buffer
, this->audio_buffer
+ len
, this->audio_avail
);
314 // Just to be safe, wipe the stream first
315 memset( stream
, 0, len
);
318 SDL_MixAudio( stream
, this->audio_buffer
, len
, ( int )( ( float )SDL_MIX_MAXVOLUME
* volume
) );
321 this->audio_avail
= 0;
324 // We're definitely playing now
327 pthread_cond_broadcast( &this->audio_cond
);
328 pthread_mutex_unlock( &this->audio_mutex
);
331 static int consumer_play_audio( consumer_sdl
this, mlt_frame frame
, int init_audio
, int *duration
)
333 // Get the properties of this consumer
334 mlt_properties properties
= this->properties
;
335 mlt_audio_format afmt
= mlt_audio_pcm
;
337 // Set the preferred params of the test card signal
338 int channels
= mlt_properties_get_int( properties
, "channels" );
339 int frequency
= mlt_properties_get_int( properties
, "frequency" );
340 static int counter
= 0;
342 int samples
= mlt_sample_calculator( mlt_properties_get_double( this->properties
, "fps" ), frequency
, counter
++ );
347 mlt_frame_get_audio( frame
, &pcm
, &afmt
, &frequency
, &channels
, &samples
);
348 *duration
= ( ( samples
* 1000 ) / frequency
);
350 if ( mlt_properties_get_int( properties
, "audio_off" ) )
357 if ( init_audio
== 1 )
359 SDL_AudioSpec request
;
362 int audio_buffer
= mlt_properties_get_int( properties
, "audio_buffer" );
364 // specify audio format
365 memset( &request
, 0, sizeof( SDL_AudioSpec
) );
367 request
.freq
= frequency
;
368 request
.format
= AUDIO_S16SYS
;
369 request
.channels
= channels
;
370 request
.samples
= audio_buffer
;
371 request
.callback
= sdl_fill_audio
;
372 request
.userdata
= (void *)this;
373 if ( SDL_OpenAudio( &request
, &got
) != 0 )
375 fprintf( stderr
, "SDL failed to open audio: %s\n", SDL_GetError() );
378 else if ( got
.size
!= 0 )
385 if ( init_audio
== 0 )
387 mlt_properties properties
= MLT_FRAME_PROPERTIES( frame
);
388 bytes
= ( samples
* channels
* 2 );
389 pthread_mutex_lock( &this->audio_mutex
);
390 while ( this->running
&& bytes
> ( sizeof( this->audio_buffer
) - this->audio_avail
) )
391 pthread_cond_wait( &this->audio_cond
, &this->audio_mutex
);
394 if ( mlt_properties_get_double( properties
, "_speed" ) == 1 )
395 memcpy( &this->audio_buffer
[ this->audio_avail
], pcm
, bytes
);
397 memset( &this->audio_buffer
[ this->audio_avail
], 0, bytes
);
398 this->audio_avail
+= bytes
;
400 pthread_cond_broadcast( &this->audio_cond
);
401 pthread_mutex_unlock( &this->audio_mutex
);
411 static int consumer_play_video( consumer_sdl
this, mlt_frame frame
)
413 // Get the properties of this consumer
414 mlt_properties properties
= this->properties
;
416 mlt_image_format vfmt
= mlt_image_yuv422
;
417 int width
= this->width
, height
= this->height
;
421 int video_off
= mlt_properties_get_int( properties
, "video_off" );
422 int preview_off
= mlt_properties_get_int( properties
, "preview_off" );
423 mlt_image_format preview_format
= mlt_properties_get_int( properties
, "preview_format" );
424 int display_off
= video_off
| preview_off
;
426 if ( this->running
&& display_off
== 0 )
428 // Get the image, width and height
429 mlt_frame_get_image( frame
, &image
, &vfmt
, &width
, &height
, 0 );
430 mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame
), "format", vfmt
);
431 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
434 if ( this->sdl_screen
!= NULL
)
439 changed
= consumer_get_dimensions( &this->window_width
, &this->window_height
);
440 sdl_unlock_display( );
442 while ( SDL_PollEvent( &event
) )
444 mlt_events_fire( this->properties
, "consumer-sdl-event", &event
, NULL
);
448 case SDL_VIDEORESIZE
:
449 this->window_width
= event
.resize
.w
;
450 this->window_height
= event
.resize
.h
;
458 mlt_producer producer
= mlt_properties_get_data( properties
, "transport_producer", NULL
);
459 char keyboard
[ 2 ] = " ";
460 void (*callback
)( mlt_producer
, char * ) = mlt_properties_get_data( properties
, "transport_callback", NULL
);
461 if ( callback
!= NULL
&& producer
!= NULL
&& event
.key
.keysym
.unicode
< 0x80 && event
.key
.keysym
.unicode
> 0 )
463 keyboard
[ 0 ] = ( char )event
.key
.keysym
.unicode
;
464 callback( producer
, keyboard
);
474 if ( width
!= this->width
|| height
!= this->height
)
476 if ( this->sdl_overlay
!= NULL
)
477 SDL_FreeYUVOverlay( this->sdl_overlay
);
478 this->sdl_overlay
= NULL
;
481 if ( this->running
&& ( this->sdl_screen
== NULL
|| changed
) )
483 // Force an overlay recreation
484 if ( this->sdl_overlay
!= NULL
)
485 SDL_FreeYUVOverlay( this->sdl_overlay
);
486 this->sdl_overlay
= NULL
;
488 // open SDL window with video overlay, if possible
489 this->sdl_screen
= SDL_SetVideoMode( this->window_width
, this->window_height
, this->bpp
, this->sdl_flags
);
490 if ( consumer_get_dimensions( &this->window_width
, &this->window_height
) )
491 this->sdl_screen
= SDL_SetVideoMode( this->window_width
, this->window_height
, this->bpp
, this->sdl_flags
);
496 // Determine window's new display aspect ratio
497 double this_aspect
= ( double )this->window_width
/ this->window_height
;
499 // Get the display aspect ratio
500 double display_ratio
= mlt_properties_get_double( properties
, "display_ratio" );
502 // Determine frame's display aspect ratio
503 double frame_aspect
= mlt_frame_get_aspect_ratio( frame
) * width
/ height
;
505 // Store the width and height received
507 this->height
= height
;
509 // If using hardware scaler
510 if ( mlt_properties_get( properties
, "rescale" ) != NULL
&&
511 !strcmp( mlt_properties_get( properties
, "rescale" ), "none" ) )
513 // Use hardware scaler to normalise display aspect ratio
514 this->rect
.w
= frame_aspect
/ this_aspect
* this->window_width
;
515 this->rect
.h
= this->window_height
;
516 if ( this->rect
.w
> this->window_width
)
518 this->rect
.w
= this->window_width
;
519 this->rect
.h
= this_aspect
/ frame_aspect
* this->window_height
;
522 // Special case optimisation to negate odd effect of sample aspect ratio
523 // not corresponding exactly with image resolution.
524 else if ( (int)( this_aspect
* 1000 ) == (int)( display_ratio
* 1000 ) )
526 this->rect
.w
= this->window_width
;
527 this->rect
.h
= this->window_height
;
529 // Use hardware scaler to normalise sample aspect ratio
530 else if ( this->window_height
* display_ratio
> this->window_width
)
532 this->rect
.w
= this->window_width
;
533 this->rect
.h
= this->window_width
/ display_ratio
;
537 this->rect
.w
= this->window_height
* display_ratio
;
538 this->rect
.h
= this->window_height
;
541 this->rect
.x
= ( this->window_width
- this->rect
.w
) / 2;
542 this->rect
.y
= ( this->window_height
- this->rect
.h
) / 2;
543 this->rect
.x
-= this->rect
.x
% 2;
545 mlt_properties_set_int( this->properties
, "rect_x", this->rect
.x
);
546 mlt_properties_set_int( this->properties
, "rect_y", this->rect
.y
);
547 mlt_properties_set_int( this->properties
, "rect_w", this->rect
.w
);
548 mlt_properties_set_int( this->properties
, "rect_h", this->rect
.h
);
550 SDL_SetClipRect( this->sdl_screen
, &this->rect
);
553 if ( this->running
&& this->sdl_screen
!= NULL
&& this->sdl_overlay
== NULL
)
555 SDL_SetClipRect( this->sdl_screen
, &this->rect
);
556 this->sdl_overlay
= SDL_CreateYUVOverlay( width
, height
, SDL_YUY2_OVERLAY
, this->sdl_screen
);
559 if ( this->running
&& this->sdl_screen
!= NULL
&& this->sdl_overlay
!= NULL
)
561 this->buffer
= this->sdl_overlay
->pixels
[ 0 ];
562 if ( SDL_LockYUVOverlay( this->sdl_overlay
) >= 0 )
565 memcpy( this->buffer
, image
, width
* height
* 2 );
566 SDL_UnlockYUVOverlay( this->sdl_overlay
);
567 SDL_DisplayYUVOverlay( this->sdl_overlay
, &this->sdl_screen
->clip_rect
);
571 sdl_unlock_display();
573 else if ( this->running
)
575 vfmt
= preview_format
== mlt_image_none ? mlt_image_rgb24a
: preview_format
;
577 mlt_frame_get_image( frame
, &image
, &vfmt
, &width
, &height
, 0 );
578 mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame
), "format", vfmt
);
579 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
585 static void *video_thread( void *arg
)
588 consumer_sdl
this = arg
;
590 // Obtain time of thread start
595 mlt_frame next
= NULL
;
596 mlt_properties properties
= NULL
;
599 // Get real time flag
600 int real_time
= mlt_properties_get_int( this->properties
, "real_time" );
602 // Get the current time
603 gettimeofday( &now
, NULL
);
605 // Determine start time
606 start
= ( int64_t )now
.tv_sec
* 1000000 + now
.tv_usec
;
608 while ( this->running
)
610 // Pop the next frame
611 pthread_mutex_lock( &this->video_mutex
);
612 next
= mlt_deque_pop_front( this->queue
);
613 while ( next
== NULL
&& this->running
)
615 pthread_cond_wait( &this->video_cond
, &this->video_mutex
);
616 next
= mlt_deque_pop_front( this->queue
);
618 pthread_mutex_unlock( &this->video_mutex
);
620 if ( !this->running
|| next
== NULL
) break;
622 // Get the properties
623 properties
= MLT_FRAME_PROPERTIES( next
);
625 // Get the speed of the frame
626 speed
= mlt_properties_get_double( properties
, "_speed" );
628 // Get the current time
629 gettimeofday( &now
, NULL
);
631 // Get the elapsed time
632 elapsed
= ( ( int64_t )now
.tv_sec
* 1000000 + now
.tv_usec
) - start
;
634 // See if we have to delay the display of the current frame
635 if ( mlt_properties_get_int( properties
, "rendered" ) == 1 && this->running
)
637 // Obtain the scheduled playout time
638 int64_t scheduled
= mlt_properties_get_int( properties
, "playtime" );
640 // Determine the difference between the elapsed time and the scheduled playout time
641 int64_t difference
= scheduled
- elapsed
;
643 // Smooth playback a bit
644 if ( real_time
&& ( difference
> 20000 && speed
== 1.0 ) )
646 tm
.tv_sec
= difference
/ 1000000;
647 tm
.tv_nsec
= ( difference
% 1000000 ) * 500;
648 nanosleep( &tm
, NULL
);
651 // Show current frame if not too old
652 if ( !real_time
|| ( difference
> -10000 || speed
!= 1.0 || mlt_deque_count( this->queue
) < 2 ) )
653 consumer_play_video( this, next
);
655 // If the queue is empty, recalculate start to allow build up again
656 if ( real_time
&& ( mlt_deque_count( this->queue
) == 0 && speed
== 1.0 ) )
658 gettimeofday( &now
, NULL
);
659 start
= ( ( int64_t )now
.tv_sec
* 1000000 + now
.tv_usec
) - scheduled
+ 20000;
663 // This frame can now be closed
664 mlt_frame_close( next
);
669 mlt_frame_close( next
);
671 mlt_consumer_stopped( &this->parent
);
676 /** Threaded wrapper for pipe.
679 static void *consumer_thread( void *arg
)
682 consumer_sdl
this = arg
;
685 mlt_consumer consumer
= &this->parent
;
687 // Convenience functionality
688 int terminate_on_pause
= mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer
), "terminate_on_pause" );
694 // internal intialization
697 mlt_frame frame
= NULL
;
698 mlt_properties properties
= NULL
;
700 int64_t playtime
= 0;
701 struct timespec tm
= { 0, 100000 };
703 // Loop until told not to
704 while( !terminated
&& this->running
)
706 // Get a frame from the attached producer
707 frame
= mlt_consumer_rt_frame( consumer
);
709 // Check for termination
710 if ( terminate_on_pause
&& frame
!= NULL
)
711 terminated
= mlt_properties_get_double( MLT_FRAME_PROPERTIES( frame
), "_speed" ) == 0.0;
713 // Ensure that we have a frame
716 // Get the frame properties
717 properties
= MLT_FRAME_PROPERTIES( frame
);
720 init_audio
= consumer_play_audio( this, frame
, init_audio
, &duration
);
722 // Determine the start time now
723 if ( this->playing
&& init_video
)
725 // Create the video thread
726 pthread_create( &thread
, NULL
, video_thread
, this );
728 // Video doesn't need to be initialised any more
732 // Set playtime for this frame
733 mlt_properties_set_int( properties
, "playtime", playtime
);
735 while ( this->running
&& mlt_deque_count( this->queue
) > 15 )
736 nanosleep( &tm
, NULL
);
738 // Push this frame to the back of the queue
739 pthread_mutex_lock( &this->video_mutex
);
740 mlt_deque_push_back( this->queue
, frame
);
741 pthread_cond_broadcast( &this->video_cond
);
742 pthread_mutex_unlock( &this->video_mutex
);
744 // Calculate the next playtime
745 playtime
+= ( duration
* 1000 );
751 // Kill the video thread
752 if ( init_video
== 0 )
754 pthread_mutex_lock( &this->video_mutex
);
755 pthread_cond_broadcast( &this->video_cond
);
756 pthread_mutex_unlock( &this->video_mutex
);
757 pthread_join( thread
, NULL
);
760 while( mlt_deque_count( this->queue
) )
761 mlt_frame_close( mlt_deque_pop_back( this->queue
) );
763 this->sdl_screen
= NULL
;
764 this->audio_avail
= 0;
769 static int consumer_get_dimensions( int *width
, int *height
)
773 // SDL windows manager structure
776 // Specify the SDL Version
777 SDL_VERSION( &wm
.version
);
780 //sdl_lock_display();
783 // Get the wm structure
784 if ( SDL_GetWMInfo( &wm
) == 1 )
786 // Check that we have the X11 wm
787 if ( wm
.subsystem
== SDL_SYSWM_X11
)
789 // Get the SDL window
790 Window window
= wm
.info
.x11
.window
;
792 // Get the display session
793 Display
*display
= wm
.info
.x11
.display
;
795 // Get the window attributes
796 XWindowAttributes attr
;
797 XGetWindowAttributes( display
, window
, &attr
);
799 // Determine whether window has changed
800 changed
= *width
!= attr
.width
|| *height
!= attr
.height
;
802 // Return width and height
804 *height
= attr
.height
;
809 // Unlock the display
810 //sdl_unlock_display();
815 /** Callback to allow override of the close method.
818 static void consumer_close( mlt_consumer parent
)
820 // Get the actual object
821 consumer_sdl
this = parent
->child
;
824 ///mlt_consumer_stop( parent );
826 // Now clean up the rest
827 mlt_consumer_close( parent
);
830 mlt_deque_close( this->queue
);
833 pthread_mutex_destroy( &this->audio_mutex
);
834 pthread_cond_destroy( &this->audio_cond
);
836 // Finally clean up this