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
);
195 mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter
), "forced", mlt_image_yuv422
);
196 mlt_service_attach( MLT_CONSUMER_SERVICE( parent
), filter
);
197 mlt_filter_close( filter
);
202 if ( sdl_started
== 0 && display_off
== 0 )
204 if ( SDL_Init( SDL_INIT_VIDEO
| SDL_INIT_NOPARACHUTE
) < 0 )
206 fprintf( stderr
, "Failed to initialize SDL: %s\n", SDL_GetError() );
210 SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY
, SDL_DEFAULT_REPEAT_INTERVAL
);
211 SDL_EnableUNICODE( 1 );
213 else if ( display_off
== 0 )
215 this->sdl_screen
= SDL_GetVideoSurface( );
218 if ( audio_off
== 0 )
219 SDL_InitSubSystem( SDL_INIT_AUDIO
);
221 // Default window size
222 double display_ratio
= mlt_properties_get_double( this->properties
, "display_ratio" );
223 this->window_width
= ( double )this->height
* display_ratio
;
224 this->window_height
= this->height
;
226 if ( this->sdl_screen
== NULL
&& display_off
== 0 )
228 if ( mlt_properties_get_int( this->properties
, "fullscreen" ) )
230 const SDL_VideoInfo
*vi
= SDL_GetVideoInfo();
231 this->window_width
= vi
->current_w
;
232 this->window_height
= vi
->current_h
;
233 this->sdl_flags
|= SDL_FULLSCREEN
;
234 SDL_ShowCursor( SDL_DISABLE
);
236 this->sdl_screen
= SDL_SetVideoMode( this->window_width
, this->window_height
, 0, this->sdl_flags
);
239 pthread_create( &this->thread
, NULL
, consumer_thread
, this );
245 int consumer_stop( mlt_consumer parent
)
247 // Get the actual object
248 consumer_sdl
this = parent
->child
;
250 if ( this->joined
== 0 )
252 // Kill the thread and clean up
255 pthread_join( this->thread
, NULL
);
258 if ( this->sdl_overlay
!= NULL
)
259 SDL_FreeYUVOverlay( this->sdl_overlay
);
260 this->sdl_overlay
= NULL
;
262 if ( !mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "audio_off" ) )
264 pthread_mutex_lock( &this->audio_mutex
);
265 pthread_cond_broadcast( &this->audio_cond
);
266 pthread_mutex_unlock( &this->audio_mutex
);
267 SDL_QuitSubSystem( SDL_INIT_AUDIO
);
270 if ( mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent
), "sdl_started" ) == 0 )
273 this->sdl_screen
= NULL
;
279 int consumer_is_stopped( mlt_consumer parent
)
281 consumer_sdl
this = parent
->child
;
282 return !this->running
;
285 static int sdl_lock_display( )
287 SDL_Surface
*screen
= SDL_GetVideoSurface( );
288 return screen
!= NULL
&& ( !SDL_MUSTLOCK( screen
) || SDL_LockSurface( screen
) >= 0 );
291 static void sdl_unlock_display( )
293 SDL_Surface
*screen
= SDL_GetVideoSurface( );
294 if ( screen
!= NULL
&& SDL_MUSTLOCK( screen
) )
295 SDL_UnlockSurface( screen
);
298 static void sdl_fill_audio( void *udata
, uint8_t *stream
, int len
)
300 consumer_sdl
this = udata
;
303 double volume
= mlt_properties_get_double( this->properties
, "volume" );
305 pthread_mutex_lock( &this->audio_mutex
);
307 // Block until audio received
308 while ( this->running
&& len
> this->audio_avail
)
309 pthread_cond_wait( &this->audio_cond
, &this->audio_mutex
);
311 if ( this->audio_avail
>= len
)
313 // Place in the audio buffer
315 SDL_MixAudio( stream
, this->audio_buffer
, len
, ( int )( ( float )SDL_MIX_MAXVOLUME
* volume
) );
317 memcpy( stream
, this->audio_buffer
, len
);
319 // Remove len from the audio available
320 this->audio_avail
-= len
;
322 // Remove the samples
323 memmove( this->audio_buffer
, this->audio_buffer
+ len
, this->audio_avail
);
327 // Just to be safe, wipe the stream first
328 memset( stream
, 0, len
);
331 SDL_MixAudio( stream
, this->audio_buffer
, len
, ( int )( ( float )SDL_MIX_MAXVOLUME
* volume
) );
334 this->audio_avail
= 0;
337 // We're definitely playing now
340 pthread_cond_broadcast( &this->audio_cond
);
341 pthread_mutex_unlock( &this->audio_mutex
);
344 static int consumer_play_audio( consumer_sdl
this, mlt_frame frame
, int init_audio
, int *duration
)
346 // Get the properties of this consumer
347 mlt_properties properties
= this->properties
;
348 mlt_audio_format afmt
= mlt_audio_pcm
;
350 // Set the preferred params of the test card signal
351 int channels
= mlt_properties_get_int( properties
, "channels" );
352 int frequency
= mlt_properties_get_int( properties
, "frequency" );
353 static int counter
= 0;
355 int samples
= mlt_sample_calculator( mlt_properties_get_double( this->properties
, "fps" ), frequency
, counter
++ );
360 mlt_frame_get_audio( frame
, &pcm
, &afmt
, &frequency
, &channels
, &samples
);
361 *duration
= ( ( samples
* 1000 ) / frequency
);
363 if ( mlt_properties_get_int( properties
, "audio_off" ) )
370 if ( init_audio
== 1 )
372 SDL_AudioSpec request
;
375 int audio_buffer
= mlt_properties_get_int( properties
, "audio_buffer" );
377 // specify audio format
378 memset( &request
, 0, sizeof( SDL_AudioSpec
) );
380 request
.freq
= frequency
;
381 request
.format
= AUDIO_S16SYS
;
382 request
.channels
= channels
;
383 request
.samples
= audio_buffer
;
384 request
.callback
= sdl_fill_audio
;
385 request
.userdata
= (void *)this;
386 if ( SDL_OpenAudio( &request
, &got
) != 0 )
388 fprintf( stderr
, "SDL failed to open audio: %s\n", SDL_GetError() );
391 else if ( got
.size
!= 0 )
398 if ( init_audio
== 0 )
400 mlt_properties properties
= MLT_FRAME_PROPERTIES( frame
);
401 bytes
= ( samples
* channels
* 2 );
402 pthread_mutex_lock( &this->audio_mutex
);
403 while ( this->running
&& bytes
> ( sizeof( this->audio_buffer
) - this->audio_avail
) )
404 pthread_cond_wait( &this->audio_cond
, &this->audio_mutex
);
407 if ( mlt_properties_get_double( properties
, "_speed" ) == 1 )
408 memcpy( &this->audio_buffer
[ this->audio_avail
], pcm
, bytes
);
410 memset( &this->audio_buffer
[ this->audio_avail
], 0, bytes
);
411 this->audio_avail
+= bytes
;
413 pthread_cond_broadcast( &this->audio_cond
);
414 pthread_mutex_unlock( &this->audio_mutex
);
424 static int consumer_play_video( consumer_sdl
this, mlt_frame frame
)
426 // Get the properties of this consumer
427 mlt_properties properties
= this->properties
;
429 mlt_image_format vfmt
= mlt_image_yuv422
;
430 int width
= this->width
, height
= this->height
;
434 int video_off
= mlt_properties_get_int( properties
, "video_off" );
435 int preview_off
= mlt_properties_get_int( properties
, "preview_off" );
436 mlt_image_format preview_format
= mlt_properties_get_int( properties
, "preview_format" );
437 int display_off
= video_off
| preview_off
;
439 if ( this->running
&& display_off
== 0 )
441 // Get the image, width and height
442 mlt_frame_get_image( frame
, &image
, &vfmt
, &width
, &height
, 0 );
443 mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame
), "format", vfmt
);
444 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
447 if ( this->sdl_screen
!= NULL
)
452 changed
= consumer_get_dimensions( &this->window_width
, &this->window_height
);
453 sdl_unlock_display( );
455 while ( SDL_PollEvent( &event
) )
457 mlt_events_fire( this->properties
, "consumer-sdl-event", &event
, NULL
);
461 case SDL_VIDEORESIZE
:
462 this->window_width
= event
.resize
.w
;
463 this->window_height
= event
.resize
.h
;
471 mlt_producer producer
= mlt_properties_get_data( properties
, "transport_producer", NULL
);
472 char keyboard
[ 2 ] = " ";
473 void (*callback
)( mlt_producer
, char * ) = mlt_properties_get_data( properties
, "transport_callback", NULL
);
474 if ( callback
!= NULL
&& producer
!= NULL
&& event
.key
.keysym
.unicode
< 0x80 && event
.key
.keysym
.unicode
> 0 )
476 keyboard
[ 0 ] = ( char )event
.key
.keysym
.unicode
;
477 callback( producer
, keyboard
);
487 if ( width
!= this->width
|| height
!= this->height
)
489 if ( this->sdl_overlay
!= NULL
)
490 SDL_FreeYUVOverlay( this->sdl_overlay
);
491 this->sdl_overlay
= NULL
;
494 if ( this->running
&& ( this->sdl_screen
== NULL
|| changed
) )
496 // Force an overlay recreation
497 if ( this->sdl_overlay
!= NULL
)
498 SDL_FreeYUVOverlay( this->sdl_overlay
);
499 this->sdl_overlay
= NULL
;
501 // open SDL window with video overlay, if possible
502 this->sdl_screen
= SDL_SetVideoMode( this->window_width
, this->window_height
, this->bpp
, this->sdl_flags
);
503 if ( consumer_get_dimensions( &this->window_width
, &this->window_height
) )
504 this->sdl_screen
= SDL_SetVideoMode( this->window_width
, this->window_height
, this->bpp
, this->sdl_flags
);
509 // Determine window's new display aspect ratio
510 double this_aspect
= ( double )this->window_width
/ this->window_height
;
512 // Get the display aspect ratio
513 double display_ratio
= mlt_properties_get_double( properties
, "display_ratio" );
515 // Determine frame's display aspect ratio
516 double frame_aspect
= mlt_frame_get_aspect_ratio( frame
) * width
/ height
;
518 // Store the width and height received
520 this->height
= height
;
522 // If using hardware scaler
523 if ( mlt_properties_get( properties
, "rescale" ) != NULL
&&
524 !strcmp( mlt_properties_get( properties
, "rescale" ), "none" ) )
526 // Use hardware scaler to normalise display aspect ratio
527 this->rect
.w
= frame_aspect
/ this_aspect
* this->window_width
;
528 this->rect
.h
= this->window_height
;
529 if ( this->rect
.w
> this->window_width
)
531 this->rect
.w
= this->window_width
;
532 this->rect
.h
= this_aspect
/ frame_aspect
* this->window_height
;
535 // Special case optimisation to negate odd effect of sample aspect ratio
536 // not corresponding exactly with image resolution.
537 else if ( (int)( this_aspect
* 1000 ) == (int)( display_ratio
* 1000 ) )
539 this->rect
.w
= this->window_width
;
540 this->rect
.h
= this->window_height
;
542 // Use hardware scaler to normalise sample aspect ratio
543 else if ( this->window_height
* display_ratio
> this->window_width
)
545 this->rect
.w
= this->window_width
;
546 this->rect
.h
= this->window_width
/ display_ratio
;
550 this->rect
.w
= this->window_height
* display_ratio
;
551 this->rect
.h
= this->window_height
;
554 this->rect
.x
= ( this->window_width
- this->rect
.w
) / 2;
555 this->rect
.y
= ( this->window_height
- this->rect
.h
) / 2;
556 this->rect
.x
-= this->rect
.x
% 2;
558 mlt_properties_set_int( this->properties
, "rect_x", this->rect
.x
);
559 mlt_properties_set_int( this->properties
, "rect_y", this->rect
.y
);
560 mlt_properties_set_int( this->properties
, "rect_w", this->rect
.w
);
561 mlt_properties_set_int( this->properties
, "rect_h", this->rect
.h
);
563 SDL_SetClipRect( this->sdl_screen
, &this->rect
);
566 if ( this->running
&& this->sdl_screen
!= NULL
&& this->sdl_overlay
== NULL
)
568 SDL_SetClipRect( this->sdl_screen
, &this->rect
);
569 this->sdl_overlay
= SDL_CreateYUVOverlay( width
, height
, SDL_YUY2_OVERLAY
, this->sdl_screen
);
572 if ( this->running
&& this->sdl_screen
!= NULL
&& this->sdl_overlay
!= NULL
)
574 this->buffer
= this->sdl_overlay
->pixels
[ 0 ];
575 if ( SDL_LockYUVOverlay( this->sdl_overlay
) >= 0 )
578 memcpy( this->buffer
, image
, width
* height
* 2 );
579 SDL_UnlockYUVOverlay( this->sdl_overlay
);
580 SDL_DisplayYUVOverlay( this->sdl_overlay
, &this->sdl_screen
->clip_rect
);
584 sdl_unlock_display();
586 else if ( this->running
)
588 vfmt
= preview_format
== mlt_image_none ? mlt_image_rgb24a
: preview_format
;
590 mlt_frame_get_image( frame
, &image
, &vfmt
, &width
, &height
, 0 );
591 mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame
), "format", vfmt
);
592 mlt_events_fire( properties
, "consumer-frame-show", frame
, NULL
);
598 static void *video_thread( void *arg
)
601 consumer_sdl
this = arg
;
603 // Obtain time of thread start
608 mlt_frame next
= NULL
;
609 mlt_properties properties
= NULL
;
612 // Get real time flag
613 int real_time
= mlt_properties_get_int( this->properties
, "real_time" );
615 // Get the current time
616 gettimeofday( &now
, NULL
);
618 // Determine start time
619 start
= ( int64_t )now
.tv_sec
* 1000000 + now
.tv_usec
;
621 while ( this->running
)
623 // Pop the next frame
624 pthread_mutex_lock( &this->video_mutex
);
625 next
= mlt_deque_pop_front( this->queue
);
626 while ( next
== NULL
&& this->running
)
628 pthread_cond_wait( &this->video_cond
, &this->video_mutex
);
629 next
= mlt_deque_pop_front( this->queue
);
631 pthread_mutex_unlock( &this->video_mutex
);
633 if ( !this->running
|| next
== NULL
) break;
635 // Get the properties
636 properties
= MLT_FRAME_PROPERTIES( next
);
638 // Get the speed of the frame
639 speed
= mlt_properties_get_double( properties
, "_speed" );
641 // Get the current time
642 gettimeofday( &now
, NULL
);
644 // Get the elapsed time
645 elapsed
= ( ( int64_t )now
.tv_sec
* 1000000 + now
.tv_usec
) - start
;
647 // See if we have to delay the display of the current frame
648 if ( mlt_properties_get_int( properties
, "rendered" ) == 1 && this->running
)
650 // Obtain the scheduled playout time
651 int64_t scheduled
= mlt_properties_get_int( properties
, "playtime" );
653 // Determine the difference between the elapsed time and the scheduled playout time
654 int64_t difference
= scheduled
- elapsed
;
656 // Smooth playback a bit
657 if ( real_time
&& ( difference
> 20000 && speed
== 1.0 ) )
659 tm
.tv_sec
= difference
/ 1000000;
660 tm
.tv_nsec
= ( difference
% 1000000 ) * 500;
661 nanosleep( &tm
, NULL
);
664 // Show current frame if not too old
665 if ( !real_time
|| ( difference
> -10000 || speed
!= 1.0 || mlt_deque_count( this->queue
) < 2 ) )
666 consumer_play_video( this, next
);
668 // If the queue is empty, recalculate start to allow build up again
669 if ( real_time
&& ( mlt_deque_count( this->queue
) == 0 && speed
== 1.0 ) )
671 gettimeofday( &now
, NULL
);
672 start
= ( ( int64_t )now
.tv_sec
* 1000000 + now
.tv_usec
) - scheduled
+ 20000;
676 // This frame can now be closed
677 mlt_frame_close( next
);
682 mlt_frame_close( next
);
684 mlt_consumer_stopped( &this->parent
);
689 /** Threaded wrapper for pipe.
692 static void *consumer_thread( void *arg
)
695 consumer_sdl
this = arg
;
698 mlt_consumer consumer
= &this->parent
;
700 // Convenience functionality
701 int terminate_on_pause
= mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer
), "terminate_on_pause" );
707 // internal intialization
710 mlt_frame frame
= NULL
;
711 mlt_properties properties
= NULL
;
713 int64_t playtime
= 0;
714 struct timespec tm
= { 0, 100000 };
716 // Loop until told not to
717 while( !terminated
&& this->running
)
719 // Get a frame from the attached producer
720 frame
= mlt_consumer_rt_frame( consumer
);
722 // Check for termination
723 if ( terminate_on_pause
&& frame
!= NULL
)
724 terminated
= mlt_properties_get_double( MLT_FRAME_PROPERTIES( frame
), "_speed" ) == 0.0;
726 // Ensure that we have a frame
729 // Get the frame properties
730 properties
= MLT_FRAME_PROPERTIES( frame
);
733 init_audio
= consumer_play_audio( this, frame
, init_audio
, &duration
);
735 // Determine the start time now
736 if ( this->playing
&& init_video
)
738 // Create the video thread
739 pthread_create( &thread
, NULL
, video_thread
, this );
741 // Video doesn't need to be initialised any more
745 // Set playtime for this frame
746 mlt_properties_set_int( properties
, "playtime", playtime
);
748 while ( this->running
&& mlt_deque_count( this->queue
) > 15 )
749 nanosleep( &tm
, NULL
);
751 // Push this frame to the back of the queue
752 pthread_mutex_lock( &this->video_mutex
);
753 mlt_deque_push_back( this->queue
, frame
);
754 pthread_cond_broadcast( &this->video_cond
);
755 pthread_mutex_unlock( &this->video_mutex
);
757 // Calculate the next playtime
758 playtime
+= ( duration
* 1000 );
764 // Kill the video thread
765 if ( init_video
== 0 )
767 pthread_mutex_lock( &this->video_mutex
);
768 pthread_cond_broadcast( &this->video_cond
);
769 pthread_mutex_unlock( &this->video_mutex
);
770 pthread_join( thread
, NULL
);
773 while( mlt_deque_count( this->queue
) )
774 mlt_frame_close( mlt_deque_pop_back( this->queue
) );
776 this->sdl_screen
= NULL
;
777 this->audio_avail
= 0;
782 static int consumer_get_dimensions( int *width
, int *height
)
786 // SDL windows manager structure
789 // Specify the SDL Version
790 SDL_VERSION( &wm
.version
);
793 //sdl_lock_display();
796 // Get the wm structure
797 if ( SDL_GetWMInfo( &wm
) == 1 )
799 // Check that we have the X11 wm
800 if ( wm
.subsystem
== SDL_SYSWM_X11
)
802 // Get the SDL window
803 Window window
= wm
.info
.x11
.window
;
805 // Get the display session
806 Display
*display
= wm
.info
.x11
.display
;
808 // Get the window attributes
809 XWindowAttributes attr
;
810 XGetWindowAttributes( display
, window
, &attr
);
812 // Determine whether window has changed
813 changed
= *width
!= attr
.width
|| *height
!= attr
.height
;
815 // Return width and height
817 *height
= attr
.height
;
822 // Unlock the display
823 //sdl_unlock_display();
828 /** Callback to allow override of the close method.
831 static void consumer_close( mlt_consumer parent
)
833 // Get the actual object
834 consumer_sdl
this = parent
->child
;
837 ///mlt_consumer_stop( parent );
839 // Now clean up the rest
840 mlt_consumer_close( parent
);
843 mlt_deque_close( this->queue
);
846 pthread_mutex_destroy( &this->audio_mutex
);
847 pthread_cond_destroy( &this->audio_cond
);
849 // Finally clean up this