+++ /dev/null
-/*
- * consumer_sdl.c -- A Simple DirectMedia Layer consumer
- * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
- * Author: Dan Dennedy <dan@dennedy.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <framework/mlt_consumer.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;
- mlt_deque queue;
- pthread_t thread;
- int joined;
- int running;
- uint8_t audio_buffer[ 4096 * 10 ];
- int audio_avail;
- pthread_mutex_t audio_mutex;
- pthread_cond_t audio_cond;
- pthread_mutex_t video_mutex;
- pthread_cond_t video_cond;
- int window_width;
- int window_height;
- int previous_width;
- int previous_height;
- int width;
- int height;
- int playing;
- int sdl_flags;
- SDL_Surface *sdl_screen;
- SDL_Overlay *sdl_overlay;
- SDL_Rect rect;
- uint8_t *buffer;
- int bpp;
- int filtered;
-};
-
-/** 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_init( mlt_profile profile, mlt_service_type type, const char *id, 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, profile ) == 0 )
- {
- // Create the queue
- this->queue = mlt_deque_init( );
-
- // Get the parent consumer object
- mlt_consumer parent = &this->parent;
-
- // 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 );
-
- // Set the default volume
- mlt_properties_set_double( this->properties, "volume", 1.0 );
-
- // This is the initialisation of the consumer
- pthread_mutex_init( &this->audio_mutex, NULL );
- pthread_cond_init( &this->audio_cond, NULL);
- pthread_mutex_init( &this->video_mutex, NULL );
- pthread_cond_init( &this->video_cond, NULL);
-
- // Default scaler (for now we'll use nearest)
- mlt_properties_set( this->properties, "rescale", "nearest" );
-
- // Default buffer for low latency
- mlt_properties_set_int( this->properties, "buffer", 1 );
-
- // Default progressive true
- mlt_properties_set_int( this->properties, "progressive", 0 );
-
- // Default audio buffer
- mlt_properties_set_int( this->properties, "audio_buffer", 512 );
-
- // Ensure we don't join on a non-running object
- this->joined = 1;
-
- // 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" );
- }
-
- // 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 ] );
-}
-
-int consumer_start( mlt_consumer parent )
-{
- consumer_sdl this = parent->child;
-
- if ( !this->running )
- {
- int video_off = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent ), "video_off" );
- int preview_off = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent ), "preview_off" );
- int display_off = video_off | preview_off;
- int audio_off = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent ), "audio_off" );
- int sdl_started = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent ), "sdl_started" );
-
- consumer_stop( parent );
-
- this->running = 1;
- this->joined = 0;
-
- if ( mlt_properties_get_int( this->properties, "width" ) > 0 )
- this->width = mlt_properties_get_int( this->properties, "width" );
- if ( mlt_properties_get_int( this->properties, "height" ) > 0 )
- this->height = mlt_properties_get_int( this->properties, "height" );
-
- this->bpp = mlt_properties_get_int( this->properties, "bpp" );
-
- // Attach a colour space converter
- if ( preview_off && !this->filtered )
- {
- mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( parent ) );
- mlt_filter filter = mlt_factory_filter( profile, "avcolour_space", NULL );
- if ( filter )
- {
- mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "forced", mlt_image_yuv422 );
- mlt_service_attach( MLT_CONSUMER_SERVICE( parent ), filter );
- mlt_filter_close( filter );
- }
- this->filtered = 1;
- }
-
- if ( sdl_started == 0 && display_off == 0 )
- {
- if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE ) < 0 )
- {
- fprintf( stderr, "Failed to initialize SDL: %s\n", SDL_GetError() );
- return -1;
- }
-
- SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL );
- SDL_EnableUNICODE( 1 );
- }
- else if ( display_off == 0 )
- {
- this->sdl_screen = SDL_GetVideoSurface( );
- }
-
- if ( audio_off == 0 )
- SDL_InitSubSystem( SDL_INIT_AUDIO );
-
- // Default window size
- double display_ratio = mlt_properties_get_double( this->properties, "display_ratio" );
- this->window_width = ( double )this->height * display_ratio;
- this->window_height = this->height;
-
- if ( this->sdl_screen == NULL && display_off == 0 )
- {
- if ( mlt_properties_get_int( this->properties, "fullscreen" ) )
- {
- const SDL_VideoInfo *vi = SDL_GetVideoInfo();
- this->window_width = vi->current_w;
- this->window_height = vi->current_h;
- this->sdl_flags |= SDL_FULLSCREEN;
- SDL_ShowCursor( SDL_DISABLE );
- }
- this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, 0, this->sdl_flags );
- }
-
- pthread_create( &this->thread, NULL, consumer_thread, this );
- }
-
- return 0;
-}
-
-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->joined = 1;
- this->running = 0;
- if ( this->thread )
- pthread_join( this->thread, NULL );
-
- // internal cleanup
- if ( this->sdl_overlay != NULL )
- SDL_FreeYUVOverlay( this->sdl_overlay );
- this->sdl_overlay = NULL;
-
- if ( !mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent ), "audio_off" ) )
- {
- pthread_mutex_lock( &this->audio_mutex );
- pthread_cond_broadcast( &this->audio_cond );
- pthread_mutex_unlock( &this->audio_mutex );
- SDL_QuitSubSystem( SDL_INIT_AUDIO );
- }
-
- if ( mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( parent ), "sdl_started" ) == 0 )
- SDL_Quit( );
-
- this->sdl_screen = NULL;
- }
-
- return 0;
-}
-
-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 void sdl_fill_audio( void *udata, uint8_t *stream, int len )
-{
- consumer_sdl this = udata;
-
- // Get the volume
- double volume = mlt_properties_get_double( this->properties, "volume" );
-
- pthread_mutex_lock( &this->audio_mutex );
-
- // Block until audio received
- while ( this->running && len > this->audio_avail )
- pthread_cond_wait( &this->audio_cond, &this->audio_mutex );
-
- if ( this->audio_avail >= len )
- {
- // Place in the audio buffer
- if ( volume != 1.0 )
- SDL_MixAudio( stream, this->audio_buffer, len, ( int )( ( float )SDL_MIX_MAXVOLUME * volume ) );
- else
- memcpy( stream, this->audio_buffer, len );
-
- // Remove len from the audio available
- this->audio_avail -= len;
-
- // Remove the samples
- memmove( this->audio_buffer, this->audio_buffer + len, this->audio_avail );
- }
- else
- {
- // Just to be safe, wipe the stream first
- memset( stream, 0, len );
-
- // Mix the audio
- SDL_MixAudio( stream, this->audio_buffer, len, ( int )( ( float )SDL_MIX_MAXVOLUME * volume ) );
-
- // No audio left
- this->audio_avail = 0;
- }
-
- // We're definitely playing now
- this->playing = 1;
-
- pthread_cond_broadcast( &this->audio_cond );
- pthread_mutex_unlock( &this->audio_mutex );
-}
-
-static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_audio, int *duration )
-{
- // Get the properties of this consumer
- mlt_properties properties = this->properties;
- mlt_audio_format afmt = mlt_audio_pcm;
-
- // Set the preferred params of the test card signal
- int channels = mlt_properties_get_int( properties, "channels" );
- int frequency = mlt_properties_get_int( properties, "frequency" );
- static int counter = 0;
-
- int samples = mlt_sample_calculator( mlt_properties_get_double( this->properties, "fps" ), frequency, counter++ );
-
- int16_t *pcm;
- int bytes;
-
- mlt_frame_get_audio( frame, &pcm, &afmt, &frequency, &channels, &samples );
- *duration = ( ( samples * 1000 ) / frequency );
-
- if ( mlt_properties_get_int( properties, "audio_off" ) )
- {
- this->playing = 1;
- init_audio = 1;
- return init_audio;
- }
-
- if ( init_audio == 1 )
- {
- SDL_AudioSpec request;
- SDL_AudioSpec got;
-
- int audio_buffer = mlt_properties_get_int( properties, "audio_buffer" );
-
- // specify audio format
- memset( &request, 0, sizeof( SDL_AudioSpec ) );
- this->playing = 0;
- request.freq = frequency;
- request.format = AUDIO_S16SYS;
- request.channels = channels;
- request.samples = audio_buffer;
- request.callback = sdl_fill_audio;
- request.userdata = (void *)this;
- if ( SDL_OpenAudio( &request, &got ) != 0 )
- {
- fprintf( stderr, "SDL failed to open audio: %s\n", SDL_GetError() );
- init_audio = 2;
- }
- else if ( got.size != 0 )
- {
- SDL_PauseAudio( 0 );
- init_audio = 0;
- }
- }
-
- if ( init_audio == 0 )
- {
- mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
- bytes = ( samples * channels * 2 );
- pthread_mutex_lock( &this->audio_mutex );
- while ( this->running && bytes > ( sizeof( this->audio_buffer) - this->audio_avail ) )
- pthread_cond_wait( &this->audio_cond, &this->audio_mutex );
- if ( this->running )
- {
- if ( mlt_properties_get_double( properties, "_speed" ) == 1 )
- memcpy( &this->audio_buffer[ this->audio_avail ], pcm, bytes );
- else
- memset( &this->audio_buffer[ this->audio_avail ], 0, bytes );
- this->audio_avail += bytes;
- }
- pthread_cond_broadcast( &this->audio_cond );
- pthread_mutex_unlock( &this->audio_mutex );
- }
- else
- {
- this->playing = 1;
- }
-
- return init_audio;
-}
-
-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_yuv422;
- int width = this->width, height = this->height;
- uint8_t *image;
- int changed = 0;
-
- int video_off = mlt_properties_get_int( properties, "video_off" );
- int preview_off = mlt_properties_get_int( properties, "preview_off" );
- mlt_image_format preview_format = mlt_properties_get_int( properties, "preview_format" );
- int display_off = video_off | preview_off;
-
- if ( this->running && display_off == 0 )
- {
- // Get the image, width and height
- mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
- mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "format", vfmt );
- mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
-
- // Handle events
- if ( this->sdl_screen != NULL )
- {
- SDL_Event event;
-
- sdl_lock_display( );
- changed = consumer_get_dimensions( &this->window_width, &this->window_height );
- sdl_unlock_display( );
-
- 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;
- }
- }
- }
-
- sdl_lock_display();
-
- if ( width != this->width || height != this->height )
- {
- if ( this->sdl_overlay != NULL )
- SDL_FreeYUVOverlay( this->sdl_overlay );
- this->sdl_overlay = NULL;
- }
-
- if ( this->running && ( this->sdl_screen == NULL || changed ) )
- {
- // Force an overlay recreation
- if ( this->sdl_overlay != NULL )
- SDL_FreeYUVOverlay( this->sdl_overlay );
- this->sdl_overlay = NULL;
-
- // open SDL window with video overlay, if possible
- this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, this->bpp, this->sdl_flags );
- if ( consumer_get_dimensions( &this->window_width, &this->window_height ) )
- this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, this->bpp, this->sdl_flags );
-
- uint32_t color = mlt_properties_get_int( this->properties, "window_background" );
- SDL_FillRect( this->sdl_screen, NULL, color >> 8 );
- SDL_Flip( this->sdl_screen );
- }
-
- if ( this->running )
- {
- // Determine window's new display aspect ratio
- double this_aspect = ( double )this->window_width / this->window_height;
-
- // Get the display aspect ratio
- double display_ratio = mlt_properties_get_double( properties, "display_ratio" );
-
- // Determine frame's display aspect ratio
- double frame_aspect = mlt_frame_get_aspect_ratio( frame ) * width / height;
-
- // Store the width and height received
- this->width = width;
- this->height = height;
-
- // If using hardware scaler
- if ( mlt_properties_get( properties, "rescale" ) != NULL &&
- !strcmp( mlt_properties_get( properties, "rescale" ), "none" ) )
- {
- // 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)( display_ratio * 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 * display_ratio > this->window_width )
- {
- this->rect.w = this->window_width;
- this->rect.h = this->window_width / display_ratio;
- }
- else
- {
- this->rect.w = this->window_height * display_ratio;
- 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;
- this->rect.x -= this->rect.x % 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 );
-
- SDL_SetClipRect( this->sdl_screen, &this->rect );
- }
-
- if ( this->running && this->sdl_screen != NULL && this->sdl_overlay == NULL )
- {
- SDL_SetClipRect( this->sdl_screen, &this->rect );
- this->sdl_overlay = SDL_CreateYUVOverlay( width, height, SDL_YUY2_OVERLAY, this->sdl_screen );
- }
-
- if ( this->running && this->sdl_screen != NULL && this->sdl_overlay != NULL )
- {
- this->buffer = this->sdl_overlay->pixels[ 0 ];
- if ( SDL_LockYUVOverlay( this->sdl_overlay ) >= 0 )
- {
- if ( image != NULL )
- memcpy( this->buffer, image, width * height * 2 );
- SDL_UnlockYUVOverlay( this->sdl_overlay );
- SDL_DisplayYUVOverlay( this->sdl_overlay, &this->sdl_screen->clip_rect );
- }
- }
-
- sdl_unlock_display();
- }
- else if ( this->running )
- {
- vfmt = preview_format == mlt_image_none ? mlt_image_rgb24a : preview_format;
- if ( !video_off )
- mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 );
- mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "format", vfmt );
- mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
- }
-
- return 0;
-}
-
-static void *video_thread( void *arg )
-{
- // Identify the arg
- consumer_sdl this = arg;
-
- // Obtain time of thread start
- struct timeval now;
- int64_t start = 0;
- int64_t elapsed = 0;
- struct timespec tm;
- mlt_frame next = NULL;
- mlt_properties properties = NULL;
- double speed = 0;
-
- // Get real time flag
- int real_time = mlt_properties_get_int( this->properties, "real_time" );
-
- // Get the current time
- gettimeofday( &now, NULL );
-
- // Determine start time
- start = ( int64_t )now.tv_sec * 1000000 + now.tv_usec;
-
- while ( this->running )
- {
- // Pop the next frame
- pthread_mutex_lock( &this->video_mutex );
- next = mlt_deque_pop_front( this->queue );
- while ( next == NULL && this->running )
- {
- pthread_cond_wait( &this->video_cond, &this->video_mutex );
- next = mlt_deque_pop_front( this->queue );
- }
- pthread_mutex_unlock( &this->video_mutex );
-
- if ( !this->running || next == NULL ) break;
-
- // Get the properties
- properties = MLT_FRAME_PROPERTIES( next );
-
- // Get the speed of the frame
- speed = mlt_properties_get_double( properties, "_speed" );
-
- // Get the current time
- gettimeofday( &now, NULL );
-
- // Get the elapsed time
- elapsed = ( ( int64_t )now.tv_sec * 1000000 + now.tv_usec ) - start;
-
- // See if we have to delay the display of the current frame
- if ( mlt_properties_get_int( properties, "rendered" ) == 1 && this->running )
- {
- // Obtain the scheduled playout time
- int64_t scheduled = mlt_properties_get_int( properties, "playtime" );
-
- // Determine the difference between the elapsed time and the scheduled playout time
- int64_t difference = scheduled - elapsed;
-
- // Smooth playback a bit
- if ( real_time && ( difference > 20000 && speed == 1.0 ) )
- {
- tm.tv_sec = difference / 1000000;
- tm.tv_nsec = ( difference % 1000000 ) * 500;
- nanosleep( &tm, NULL );
- }
-
- // Show current frame if not too old
- if ( !real_time || ( difference > -10000 || speed != 1.0 || mlt_deque_count( this->queue ) < 2 ) )
- consumer_play_video( this, next );
-
- // If the queue is empty, recalculate start to allow build up again
- if ( real_time && ( mlt_deque_count( this->queue ) == 0 && speed == 1.0 ) )
- {
- gettimeofday( &now, NULL );
- start = ( ( int64_t )now.tv_sec * 1000000 + now.tv_usec ) - scheduled + 20000;
- }
- }
-
- // This frame can now be closed
- mlt_frame_close( next );
- next = NULL;
- }
-
- if ( next != NULL )
- mlt_frame_close( next );
-
- mlt_consumer_stopped( &this->parent );
-
- return NULL;
-}
-
-/** 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;
-
- // Convenience functionality
- int terminate_on_pause = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "terminate_on_pause" );
- int terminated = 0;
-
- // Video thread
- pthread_t thread;
-
- // internal intialization
- int init_audio = 1;
- int init_video = 1;
- mlt_frame frame = NULL;
- mlt_properties properties = NULL;
- int duration = 0;
- int64_t playtime = 0;
- struct timespec tm = { 0, 100000 };
-
- // Loop until told not to
- while( !terminated && this->running )
- {
- // Get a frame from the attached producer
- frame = mlt_consumer_rt_frame( consumer );
-
- // Check for termination
- if ( terminate_on_pause && frame != NULL )
- terminated = mlt_properties_get_double( MLT_FRAME_PROPERTIES( frame ), "_speed" ) == 0.0;
-
- // Ensure that we have a frame
- if ( frame != NULL )
- {
- // Get the frame properties
- properties = MLT_FRAME_PROPERTIES( frame );
-
- // Play audio
- init_audio = consumer_play_audio( this, frame, init_audio, &duration );
-
- // Determine the start time now
- if ( this->playing && init_video )
- {
- // Create the video thread
- pthread_create( &thread, NULL, video_thread, this );
-
- // Video doesn't need to be initialised any more
- init_video = 0;
- }
-
- // Set playtime for this frame
- mlt_properties_set_int( properties, "playtime", playtime );
-
- while ( this->running && mlt_deque_count( this->queue ) > 15 )
- nanosleep( &tm, NULL );
-
- // Push this frame to the back of the queue
- pthread_mutex_lock( &this->video_mutex );
- mlt_deque_push_back( this->queue, frame );
- pthread_cond_broadcast( &this->video_cond );
- pthread_mutex_unlock( &this->video_mutex );
-
- // Calculate the next playtime
- playtime += ( duration * 1000 );
- }
- }
-
- this->running = 0;
-
- // Kill the video thread
- if ( init_video == 0 )
- {
- pthread_mutex_lock( &this->video_mutex );
- pthread_cond_broadcast( &this->video_cond );
- pthread_mutex_unlock( &this->video_mutex );
- pthread_join( thread, NULL );
- }
-
- while( mlt_deque_count( this->queue ) )
- mlt_frame_close( mlt_deque_pop_back( this->queue ) );
-
- this->sdl_screen = NULL;
- this->audio_avail = 0;
-
- 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();
-
-#ifndef __DARWIN__
- // 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;
- }
- }
-#endif
-
- // Unlock the display
- //sdl_unlock_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 );
-
- // Close the queue
- mlt_deque_close( this->queue );
-
- // Destroy mutexes
- pthread_mutex_destroy( &this->audio_mutex );
- pthread_cond_destroy( &this->audio_cond );
-
- // Finally clean up this
- free( this );
-}
projects / melted / blobdiff