#include <stdio.h>
#include <string.h>
#include <stdlib.h>
+#include <sys/time.h>
+
+static void mlt_consumer_frame_render( mlt_listener listener, mlt_properties owner, mlt_service this, void **args );
+static void mlt_consumer_frame_show( mlt_listener listener, mlt_properties owner, mlt_service this, void **args );
/** Public final methods
*/
if ( error == 0 )
{
// Get the properties from the service
- mlt_properties properties = mlt_service_properties( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
// Get the normalisation preference
char *normalisation = mlt_environment( "MLT_NORMALISATION" );
{
mlt_properties_set( properties, "normalisation", "PAL" );
mlt_properties_set_double( properties, "fps", 25.0 );
+ mlt_properties_set_int( properties, "frame_rate_num", 25 );
+ mlt_properties_set_int( properties, "frame_rate_den", 1 );
mlt_properties_set_int( properties, "width", 720 );
mlt_properties_set_int( properties, "height", 576 );
mlt_properties_set_int( properties, "progressive", 0 );
+ mlt_properties_set_double( properties, "aspect_ratio", 59.0 / 54.0 );
+ mlt_properties_set_int( properties, "aspect_ratio_num", 59 );
+ mlt_properties_set_int( properties, "aspect_ratio_den", 54 );
+ mlt_properties_set_double( properties, "display_ratio", 4.0 / 3.0 );
+ mlt_properties_set_int( properties, "display_ratio_num", 4 );
+ mlt_properties_set_int( properties, "display_ratio_den", 3 );
}
else
{
mlt_properties_set( properties, "normalisation", "NTSC" );
mlt_properties_set_double( properties, "fps", 30000.0 / 1001.0 );
+ mlt_properties_set_int( properties, "frame_rate_num", 30000 );
+ mlt_properties_set_int( properties, "frame_rate_den", 1001 );
mlt_properties_set_int( properties, "width", 720 );
mlt_properties_set_int( properties, "height", 480 );
mlt_properties_set_int( properties, "progressive", 0 );
+ mlt_properties_set_double( properties, "aspect_ratio", 10.0 / 11.0 );
+ mlt_properties_set_int( properties, "aspect_ratio_num", 10 );
+ mlt_properties_set_int( properties, "aspect_ratio_den", 11 );
+ mlt_properties_set_double( properties, "display_ratio", 4.0 / 3.0 );
+ mlt_properties_set_int( properties, "display_ratio_num", 4 );
+ mlt_properties_set_int( properties, "display_ratio_den", 3 );
}
- mlt_properties_set_double( properties, "aspect_ratio", 4.0 / 3.0 );
// Default rescaler for all consumers
mlt_properties_set( properties, "rescale", "bilinear" );
+
+ // Default read ahead buffer size
+ mlt_properties_set_int( properties, "buffer", 25 );
+
+ // Default audio frequency and channels
+ mlt_properties_set_int( properties, "frequency", 48000 );
+ mlt_properties_set_int( properties, "channels", 2 );
+
+ // Default of all consumers is real time
+ mlt_properties_set_int( properties, "real_time", 1 );
+
+ // Default to environment test card
+ mlt_properties_set( properties, "test_card", mlt_environment( "MLT_TEST_CARD" ) );
+
+ // Hmm - default all consumers to yuv422 :-/
+ this->format = mlt_image_yuv422;
+
+ mlt_events_register( properties, "consumer-frame-show", ( mlt_transmitter )mlt_consumer_frame_show );
+ mlt_events_register( properties, "consumer-frame-render", ( mlt_transmitter )mlt_consumer_frame_render );
+ mlt_events_register( properties, "consumer-stopped", NULL );
+
+ // Create the push mutex and condition
+ pthread_mutex_init( &this->put_mutex, NULL );
+ pthread_cond_init( &this->put_cond, NULL );
+
}
return error;
}
+static void mlt_consumer_frame_show( mlt_listener listener, mlt_properties owner, mlt_service this, void **args )
+{
+ if ( listener != NULL )
+ listener( owner, this, ( mlt_frame )args[ 0 ] );
+}
+
+static void mlt_consumer_frame_render( mlt_listener listener, mlt_properties owner, mlt_service this, void **args )
+{
+ if ( listener != NULL )
+ listener( owner, this, ( mlt_frame )args[ 0 ] );
+}
+
+/** Create a new consumer.
+*/
+
+mlt_consumer mlt_consumer_new( )
+{
+ // Create the memory for the structure
+ mlt_consumer this = malloc( sizeof( struct mlt_consumer_s ) );
+
+ // Initialise it
+ if ( this != NULL )
+ mlt_consumer_init( this, NULL );
+
+ // Return it
+ return this;
+}
+
/** Get the parent service object.
*/
mlt_service mlt_consumer_service( mlt_consumer this )
{
- return &this->parent;
+ return this != NULL ? &this->parent : NULL;
}
/** Get the consumer properties.
mlt_properties mlt_consumer_properties( mlt_consumer this )
{
- return mlt_service_properties( &this->parent );
+ return this != NULL ? MLT_SERVICE_PROPERTIES( &this->parent ) : NULL;
}
/** Connect the consumer to the producer.
int mlt_consumer_start( mlt_consumer this )
{
// Get the properies
- mlt_properties properties = mlt_consumer_properties( this );
+ mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
// Determine if there's a test card producer
char *test_card = mlt_properties_get( properties, "test_card" );
+ // Handle profiles
+ char *profile = mlt_properties_get( properties, "profile" );
+ int profile_ok = mlt_consumer_profile( properties, profile );
+
+ // Check that everything is OK
+ if ( !profile_ok )
+ fprintf( stderr, "Unrecognised profile %s - continuing with defaults.\n", mlt_properties_get( properties, "profile" ) );
+ else if ( profile_ok < 0 )
+ fprintf( stderr, "Recognised profile %s with warnings - trying to continue with some defaults.\n", mlt_properties_get( properties, "profile" ) );
+
+ // Just to make sure nothing is hanging around...
+ mlt_frame_close( this->put );
+ this->put = NULL;
+ this->put_active = 1;
+
// Deal with it now.
if ( test_card != NULL )
{
if ( mlt_properties_get_data( properties, "test_card_producer", NULL ) == NULL )
{
// Create a test card producer
- // TODO: do we want to use fezzik here?
- mlt_producer producer = mlt_factory_producer( "fezzik", test_card );
+ mlt_producer producer = mlt_factory_producer( NULL, test_card );
// Do we have a producer
if ( producer != NULL )
{
// Test card should loop I guess...
- mlt_properties_set( mlt_producer_properties( producer ), "eof", "loop" );
+ mlt_properties_set( MLT_PRODUCER_PROPERTIES( producer ), "eof", "loop" );
+ //mlt_producer_set_speed( producer, 0 );
+ //mlt_producer_set_in_and_out( producer, 0, 0 );
// Set the test card on the consumer
mlt_properties_set_data( properties, "test_card_producer", producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
}
-
- // Check and run an ante command
- if ( mlt_properties_get( properties, "ante" ) )
- system( mlt_properties_get( properties, "ante" ) );
}
}
+ else
+ {
+ // Allow the hash table to speed things up
+ mlt_properties_set_data( properties, "test_card_producer", NULL, 0, NULL, NULL );
+ }
+
+ // Check and run an ante command
+ if ( mlt_properties_get( properties, "ante" ) )
+ system( mlt_properties_get( properties, "ante" ) );
+
+ // Set the real_time preference
+ this->real_time = mlt_properties_get_int( properties, "real_time" );
// Start the service
if ( this->start != NULL )
return 0;
}
-/** Protected method :-/ for consumer to get frames from connected service
+/** An alternative method to feed frames into the consumer - only valid if
+ the consumer itself is not connected.
+*/
+
+int mlt_consumer_put_frame( mlt_consumer this, mlt_frame frame )
+{
+ int error = 1;
+
+ // Get the service assoicated to the consumer
+ mlt_service service = MLT_CONSUMER_SERVICE( this );
+
+ if ( mlt_service_producer( service ) == NULL )
+ {
+ struct timeval now;
+ struct timespec tm;
+ pthread_mutex_lock( &this->put_mutex );
+ while ( this->put_active && this->put != NULL )
+ {
+ gettimeofday( &now, NULL );
+ tm.tv_sec = now.tv_sec + 1;
+ tm.tv_nsec = now.tv_usec * 1000;
+ pthread_cond_timedwait( &this->put_cond, &this->put_mutex, &tm );
+ }
+ if ( this->put_active && this->put == NULL )
+ this->put = frame;
+ else
+ mlt_frame_close( frame );
+ pthread_cond_broadcast( &this->put_cond );
+ pthread_mutex_unlock( &this->put_mutex );
+ }
+ else
+ {
+ mlt_frame_close( frame );
+ }
+
+ return error;
+}
+
+/** Protected method for consumer to get frames from connected service
*/
mlt_frame mlt_consumer_get_frame( mlt_consumer this )
mlt_frame frame = NULL;
// Get the service assoicated to the consumer
- mlt_service service = mlt_consumer_service( this );
+ mlt_service service = MLT_CONSUMER_SERVICE( this );
+
+ // Get the consumer properties
+ mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
// Get the frame
- if ( mlt_service_get_frame( service, &frame, 0 ) == 0 )
+ if ( mlt_service_producer( service ) == NULL && mlt_properties_get_int( properties, "put_mode" ) )
+ {
+ struct timeval now;
+ struct timespec tm;
+ pthread_mutex_lock( &this->put_mutex );
+ while ( this->put_active && this->put == NULL )
+ {
+ gettimeofday( &now, NULL );
+ tm.tv_sec = now.tv_sec + 1;
+ tm.tv_nsec = now.tv_usec * 1000;
+ pthread_cond_timedwait( &this->put_cond, &this->put_mutex, &tm );
+ }
+ frame = this->put;
+ this->put = NULL;
+ pthread_cond_broadcast( &this->put_cond );
+ pthread_mutex_unlock( &this->put_mutex );
+ if ( frame != NULL )
+ mlt_service_apply_filters( service, frame, 0 );
+ }
+ else if ( mlt_service_producer( service ) != NULL )
+ {
+ mlt_service_get_frame( service, &frame, 0 );
+ }
+ else
{
- // Get the consumer properties
- mlt_properties properties = mlt_consumer_properties( this );
+ frame = mlt_frame_init( );
+ }
+ if ( frame != NULL )
+ {
// Get the frame properties
- mlt_properties frame_properties = mlt_frame_properties( frame );
+ mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
- // Attach the test frame producer to it.
+ // Get the test card producer
mlt_producer test_card = mlt_properties_get_data( properties, "test_card_producer", NULL );
- mlt_properties_set_data( frame_properties, "test_card_producer", test_card, 0, NULL, NULL );
+
+ // Attach the test frame producer to it.
+ if ( test_card != NULL )
+ mlt_properties_set_data( frame_properties, "test_card_producer", test_card, 0, NULL, NULL );
// Attach the rescale property
- if ( mlt_properties_get( properties, "rescale" ) != NULL )
- mlt_properties_set( frame_properties, "rescale.interp", mlt_properties_get( properties, "rescale" ) );
+ mlt_properties_set( frame_properties, "rescale.interp", mlt_properties_get( properties, "rescale" ) );
// Aspect ratio and other jiggery pokery
mlt_properties_set_double( frame_properties, "consumer_aspect_ratio", mlt_properties_get_double( properties, "aspect_ratio" ) );
- mlt_properties_set_int( frame_properties, "consumer_progressive", mlt_properties_get_int( properties, "progressive" ) );
- mlt_properties_set_int( frame_properties, "consumer_deinterlace", mlt_properties_get_int( properties, "deinterlace" ) );
-
+ mlt_properties_set_int( frame_properties, "consumer_deinterlace", mlt_properties_get_int( properties, "progressive" ) | mlt_properties_get_int( properties, "deinterlace" ) );
+ mlt_properties_set( frame_properties, "deinterlace_method", mlt_properties_get( properties, "deinterlace_method" ) );
}
// Return the frame
return frame;
}
+static inline long time_difference( struct timeval *time1 )
+{
+ struct timeval time2;
+ time2.tv_sec = time1->tv_sec;
+ time2.tv_usec = time1->tv_usec;
+ gettimeofday( time1, NULL );
+ return time1->tv_sec * 1000000 + time1->tv_usec - time2.tv_sec * 1000000 - time2.tv_usec;
+}
+
+int mlt_consumer_profile( mlt_properties properties, char *profile )
+{
+ double fps = mlt_properties_get_double( properties, "fps" );
+ int recognised = 1;
+ double display_num = 0;
+ double display_den = 0;
+ double pixel_num = 0;
+ double pixel_den = 0;
+ int width = 0;
+ int height = 0;
+
+ if ( fps == 25.0 && profile != NULL )
+ {
+ width = 720;
+ height = 576;
+ display_num = 4;
+ display_den = 3;
+ pixel_num = 59;
+ pixel_den = 54;
+
+ if ( !strcmp( profile, "dv_wide" ) )
+ {
+ display_num = 16;
+ display_den = 9;
+ pixel_num = 118;
+ pixel_den = 81;
+ }
+ else if ( !strncmp( profile, "square_wide", 11 ) )
+ {
+ display_num = 16;
+ display_den = 9;
+ pixel_num = 1;
+ pixel_den = 1;
+ width = 1024;
+ height = 576;
+ }
+ else if ( !strncmp( profile, "square", 6 ) )
+ {
+ pixel_num = 1;
+ pixel_den = 1;
+ width = 768;
+ height = 576;
+ }
+ else if ( !strncmp( profile, "vcd", 3 ) )
+ {
+ width = 352;
+ height = 288;
+ }
+ else if ( !strncmp( profile, "cvd", 3 ) )
+ {
+ width = 352;
+ height = 576;
+ pixel_num = 59;
+ pixel_den = 27;
+ }
+ else if ( !strncmp( profile, "svcd_wide", 9 ) )
+ {
+ width = 480;
+ height = 576;
+ pixel_num = 59;
+ pixel_den = 27;
+ display_num = 16;
+ display_den = 9;
+ }
+ else if ( !strncmp( profile, "svcd", 4 ) )
+ {
+ width = 480;
+ height = 576;
+ pixel_num = 59;
+ pixel_den = 36;
+ }
+ else if ( strncmp( profile, "frame", 5 ) && strcmp( profile, "dv" ) )
+ {
+ recognised = 0;
+ }
+ }
+ else if ( profile != NULL )
+ {
+ width = 720;
+ height = 480;
+ display_num = 4;
+ display_den = 3;
+ pixel_num = 10;
+ pixel_den = 11;
+
+ if ( !strcmp( profile, "dv_wide" ) )
+ {
+ display_num = 16;
+ display_den = 9;
+ pixel_num = 40;
+ pixel_den = 33;
+ }
+ else if ( !strncmp( profile, "square_wide", 11 ) )
+ {
+ display_num = 16;
+ display_den = 9;
+ pixel_num = 1;
+ pixel_den = 1;
+ width = 854;
+ height = 480;
+ }
+ else if ( !strncmp( profile, "square", 6 ) )
+ {
+ pixel_num = 1;
+ pixel_den = 1;
+ width = 640;
+ height = 480;
+ }
+ else if ( !strncmp( profile, "vcd", 3 ) )
+ {
+ width = 352;
+ height = 240;
+ }
+ else if ( !strncmp( profile, "cvd", 3 ) )
+ {
+ width = 352;
+ height = 480;
+ pixel_num = 20;
+ pixel_den = 11;
+ }
+ else if ( !strncmp( profile, "svcd_wide", 9 ) )
+ {
+ width = 480;
+ height = 480;
+ pixel_num = 20;
+ pixel_den = 11;
+ display_num = 16;
+ display_den = 9;
+ }
+ else if ( !strncmp( profile, "svcd", 4 ) )
+ {
+ width = 480;
+ height = 480;
+ pixel_num = 15;
+ pixel_den = 11;
+ }
+ else if ( strncmp( profile, "frame", 5 ) && strcmp( profile, "dv" ) )
+ {
+ recognised = 0;
+ }
+ }
+
+ // If width (or any of the above are 0), we use defaults otherwise we switch to recognised
+ if ( width != 0 && recognised )
+ {
+ if ( recognised && strchr( profile, ':' ) )
+ if ( sscanf( strchr( profile, ':' ) + 1, "%dx%d", &width, &height ) != 2 )
+ recognised = -1;
+
+ mlt_properties_set_int( properties, "width", width );
+ mlt_properties_set_int( properties, "height", height );
+ mlt_properties_set_double( properties, "aspect_ratio", pixel_num / pixel_den );
+ mlt_properties_set_int( properties, "aspect_ratio_num", pixel_num );
+ mlt_properties_set_int( properties, "aspect_ratio_den", pixel_den );
+ mlt_properties_set_double( properties, "display_ratio", display_num / display_den );
+ mlt_properties_set_int( properties, "display_ratio_num", display_num );
+ mlt_properties_set_int( properties, "display_ratio_den", display_den );
+ }
+
+ return recognised;
+}
+
+static void *consumer_read_ahead_thread( void *arg )
+{
+ // The argument is the consumer
+ mlt_consumer this = arg;
+
+ // Get the properties of the consumer
+ mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
+
+ // Get the width and height
+ int width = mlt_properties_get_int( properties, "width" );
+ int height = mlt_properties_get_int( properties, "height" );
+
+ // See if video is turned off
+ int video_off = mlt_properties_get_int( properties, "video_off" );
+ int preview_off = mlt_properties_get_int( properties, "preview_off" );
+ int preview_format = mlt_properties_get_int( properties, "preview_format" );
+
+ // Get the audio settings
+ mlt_audio_format afmt = mlt_audio_pcm;
+ int counter = 0;
+ double fps = mlt_properties_get_double( properties, "fps" );
+ int channels = mlt_properties_get_int( properties, "channels" );
+ int frequency = mlt_properties_get_int( properties, "frequency" );
+ int samples = 0;
+ int16_t *pcm = NULL;
+
+ // See if audio is turned off
+ int audio_off = mlt_properties_get_int( properties, "audio_off" );
+
+ // Get the maximum size of the buffer
+ int buffer = mlt_properties_get_int( properties, "buffer" ) + 1;
+
+ // General frame variable
+ mlt_frame frame = NULL;
+ uint8_t *image = NULL;
+
+ // Time structures
+ struct timeval ante;
+
+ // Average time for get_frame and get_image
+ int count = 1;
+ int skipped = 0;
+ int64_t time_wait = 0;
+ int64_t time_frame = 0;
+ int64_t time_process = 0;
+ int skip_next = 0;
+ mlt_service lock_object = NULL;
+
+ if ( preview_off && preview_format != 0 )
+ this->format = preview_format;
+
+ // Get the first frame
+ frame = mlt_consumer_get_frame( this );
+
+ // Get the lock object
+ lock_object = mlt_properties_get_data( MLT_FRAME_PROPERTIES( frame ), "consumer_lock_service", NULL );
+
+ // Lock it
+ if ( lock_object ) mlt_service_lock( lock_object );
+
+ // Get the image of the first frame
+ if ( !video_off )
+ {
+ mlt_events_fire( MLT_CONSUMER_PROPERTIES( this ), "consumer-frame-render", frame, NULL );
+ mlt_frame_get_image( frame, &image, &this->format, &width, &height, 0 );
+ }
+
+ if ( !audio_off )
+ {
+ samples = mlt_sample_calculator( fps, frequency, counter++ );
+ mlt_frame_get_audio( frame, &pcm, &afmt, &frequency, &channels, &samples );
+ }
+
+ // Unlock the lock object
+ if ( lock_object ) mlt_service_unlock( lock_object );
+
+ // Mark as rendered
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "rendered", 1 );
+
+ // Get the starting time (can ignore the times above)
+ gettimeofday( &ante, NULL );
+
+ // Continue to read ahead
+ while ( this->ahead )
+ {
+ // Fetch width/height again
+ width = mlt_properties_get_int( properties, "width" );
+ height = mlt_properties_get_int( properties, "height" );
+
+ // Put the current frame into the queue
+ pthread_mutex_lock( &this->mutex );
+ while( this->ahead && mlt_deque_count( this->queue ) >= buffer )
+ pthread_cond_wait( &this->cond, &this->mutex );
+ mlt_deque_push_back( this->queue, frame );
+ pthread_cond_broadcast( &this->cond );
+ pthread_mutex_unlock( &this->mutex );
+
+ time_wait += time_difference( &ante );
+
+ // Get the next frame
+ frame = mlt_consumer_get_frame( this );
+ time_frame += time_difference( &ante );
+
+ // If there's no frame, we're probably stopped...
+ if ( frame == NULL )
+ continue;
+
+ // Attempt to fetch the lock object
+ lock_object = mlt_properties_get_data( MLT_FRAME_PROPERTIES( frame ), "consumer_lock_service", NULL );
+
+ // Increment the count
+ count ++;
+
+ // Lock if there's a lock object
+ if ( lock_object ) mlt_service_lock( lock_object );
+
+ // All non normal playback frames should be shown
+ if ( mlt_properties_get_int( MLT_FRAME_PROPERTIES( frame ), "_speed" ) != 1 )
+ {
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "consumer_deinterlace", 1 );
+ skipped = 0;
+ time_frame = 0;
+ time_process = 0;
+ time_wait = 0;
+ count = 1;
+ skip_next = 0;
+ }
+
+ // Get the image
+ if ( !skip_next )
+ {
+ // Get the image, mark as rendered and time it
+ if ( !video_off )
+ {
+ mlt_events_fire( MLT_CONSUMER_PROPERTIES( this ), "consumer-frame-render", frame, NULL );
+ mlt_frame_get_image( frame, &image, &this->format, &width, &height, 0 );
+ }
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "rendered", 1 );
+ }
+ else
+ {
+ // Increment the number of sequentially skipped frames
+ skipped ++;
+ skip_next = 0;
+
+ // If we've reached an unacceptable level, reset everything
+ if ( skipped > 5 )
+ {
+ skipped = 0;
+ time_frame = 0;
+ time_process = 0;
+ time_wait = 0;
+ count = 1;
+ }
+ }
+
+ // Always process audio
+ if ( !audio_off )
+ {
+ samples = mlt_sample_calculator( fps, frequency, counter++ );
+ mlt_frame_get_audio( frame, &pcm, &afmt, &frequency, &channels, &samples );
+ }
+
+ // Increment the time take for this frame
+ time_process += time_difference( &ante );
+
+ // Determine if the next frame should be skipped
+ if ( mlt_deque_count( this->queue ) <= 5 && ( ( time_wait + time_frame + time_process ) / count ) > 40000 )
+ skip_next = 1;
+
+ // Unlock if there's a lock object
+ if ( lock_object ) mlt_service_unlock( lock_object );
+ }
+
+ // Remove the last frame
+ mlt_frame_close( frame );
+
+ return NULL;
+}
+
+static void consumer_read_ahead_start( mlt_consumer this )
+{
+ // We're running now
+ this->ahead = 1;
+
+ // Create the frame queue
+ this->queue = mlt_deque_init( );
+
+ // Create the mutex
+ pthread_mutex_init( &this->mutex, NULL );
+
+ // Create the condition
+ pthread_cond_init( &this->cond, NULL );
+
+ // Create the read ahead
+ pthread_create( &this->ahead_thread, NULL, consumer_read_ahead_thread, this );
+}
+
+static void consumer_read_ahead_stop( mlt_consumer this )
+{
+ // Make sure we're running
+ if ( this->ahead )
+ {
+ // Inform thread to stop
+ this->ahead = 0;
+
+ // Broadcast to the condition in case it's waiting
+ pthread_mutex_lock( &this->mutex );
+ pthread_cond_broadcast( &this->cond );
+ pthread_mutex_unlock( &this->mutex );
+
+ // Broadcast to the put condition in case it's waiting
+ pthread_mutex_lock( &this->put_mutex );
+ pthread_cond_broadcast( &this->put_cond );
+ pthread_mutex_unlock( &this->put_mutex );
+
+ // Join the thread
+ pthread_join( this->ahead_thread, NULL );
+
+ // Destroy the mutex
+ pthread_mutex_destroy( &this->mutex );
+
+ // Destroy the condition
+ pthread_cond_destroy( &this->cond );
+
+ // Wipe the queue
+ while ( mlt_deque_count( this->queue ) )
+ mlt_frame_close( mlt_deque_pop_back( this->queue ) );
+
+ // Close the queue
+ mlt_deque_close( this->queue );
+ }
+}
+
+void mlt_consumer_purge( mlt_consumer this )
+{
+ if ( this->ahead )
+ {
+ pthread_mutex_lock( &this->mutex );
+ while ( mlt_deque_count( this->queue ) )
+ mlt_frame_close( mlt_deque_pop_back( this->queue ) );
+ pthread_cond_broadcast( &this->cond );
+ pthread_mutex_unlock( &this->mutex );
+ }
+}
+
+mlt_frame mlt_consumer_rt_frame( mlt_consumer this )
+{
+ // Frame to return
+ mlt_frame frame = NULL;
+
+ // Get the properties
+ mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
+
+ // Check if the user has requested real time or not
+ if ( this->real_time )
+ {
+ int size = 1;
+
+ // Is the read ahead running?
+ if ( this->ahead == 0 )
+ {
+ int buffer = mlt_properties_get_int( properties, "buffer" );
+ int prefill = mlt_properties_get_int( properties, "prefill" );
+ consumer_read_ahead_start( this );
+ if ( buffer > 1 )
+ size = prefill > 0 && prefill < buffer ? prefill : buffer;
+ }
+
+ // Get frame from queue
+ pthread_mutex_lock( &this->mutex );
+ while( this->ahead && mlt_deque_count( this->queue ) < size )
+ pthread_cond_wait( &this->cond, &this->mutex );
+ frame = mlt_deque_pop_front( this->queue );
+ pthread_cond_broadcast( &this->cond );
+ pthread_mutex_unlock( &this->mutex );
+ }
+ else
+ {
+ // Get the frame in non real time
+ frame = mlt_consumer_get_frame( this );
+
+ // This isn't true, but from the consumers perspective it is
+ if ( frame != NULL )
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "rendered", 1 );
+ }
+
+ return frame;
+}
+
+/** Callback for the implementation to indicate a stopped condition.
+*/
+
+void mlt_consumer_stopped( mlt_consumer this )
+{
+ mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( this ), "running", 0 );
+ mlt_events_fire( MLT_CONSUMER_PROPERTIES( this ), "consumer-stopped", NULL );
+}
+
/** Stop the consumer.
*/
int mlt_consumer_stop( mlt_consumer this )
{
// Get the properies
- mlt_properties properties = mlt_consumer_properties( this );
+ mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
+ char *debug = mlt_properties_get( MLT_CONSUMER_PROPERTIES( this ), "debug" );
+
+ // Just in case...
+ if ( debug ) fprintf( stderr, "%s: stopping put waiting\n", debug );
+ pthread_mutex_lock( &this->put_mutex );
+ this->put_active = 0;
+ pthread_cond_broadcast( &this->put_cond );
+ pthread_mutex_unlock( &this->put_mutex );
// Stop the consumer
+ if ( debug ) fprintf( stderr, "%s: stopping consumer\n", debug );
if ( this->stop != NULL )
this->stop( this );
+ // Check if the user has requested real time or not and stop if necessary
+ if ( debug ) fprintf( stderr, "%s: stopping read_ahead\n", debug );
+ if ( mlt_properties_get_int( properties, "real_time" ) )
+ consumer_read_ahead_stop( this );
+
// Kill the test card
mlt_properties_set_data( properties, "test_card_producer", NULL, 0, NULL, NULL );
if ( mlt_properties_get( properties, "post" ) )
system( mlt_properties_get( properties, "post" ) );
+ if ( debug ) fprintf( stderr, "%s: stopped\n", debug );
+
return 0;
}
void mlt_consumer_close( mlt_consumer this )
{
- // Get the childs close function
- void ( *consumer_close )( ) = this->close;
+ if ( this != NULL && mlt_properties_dec_ref( MLT_CONSUMER_PROPERTIES( this ) ) <= 0 )
+ {
+ // Get the childs close function
+ void ( *consumer_close )( ) = this->close;
- // Make sure it only gets called once
- this->close = NULL;
+ if ( consumer_close )
+ {
+ // Just in case...
+ //mlt_consumer_stop( this );
- // Call the childs close if available
- if ( consumer_close != NULL )
- consumer_close( this );
- else
- mlt_service_close( &this->parent );
-}
+ this->close = NULL;
+ consumer_close( this );
+ }
+ else
+ {
+ // Make sure it only gets called once
+ this->parent.close = NULL;
+
+ // Destroy the push mutex and condition
+ pthread_mutex_destroy( &this->put_mutex );
+ pthread_cond_destroy( &this->put_cond );
+ mlt_service_close( &this->parent );
+ }
+ }
+}
projects / melted / blobdiff