static void foreach_consumer_stop( mlt_consumer consumer )
{
mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
mlt_consumer nested = NULL;
char key[30];
int index = 0;
struct timespec tm = { 0, 1000 * 1000 };
do {
snprintf( key, sizeof(key), "%d.consumer", index++ );
nested = mlt_properties_get_data( properties, key, NULL );
if ( nested )
{
// Let consumer with terminate_on_pause stop on their own
if ( mlt_properties_get_int( MLT_CONSUMER_PROPERTIES(nested), "terminate_on_pause" ) )
{
// Send additional dummy frame to unlatch nested consumer's threads
mlt_consumer_put_frame( nested, mlt_frame_init( MLT_CONSUMER_SERVICE(consumer) ) );
// wait for stop
while ( !mlt_consumer_is_stopped( nested ) )
nanosleep( &tm, NULL );
}
else
{
mlt_consumer_stop( nested );
}
}
} while ( nested );
}
static int consumer_play_video( consumer_sdl self, mlt_frame frame )
{
// Get the properties of this consumer
mlt_properties properties = self->properties;
if ( self->running && !mlt_consumer_is_stopped( &self->parent ) )
mlt_events_fire( properties, "consumer-frame-show", frame, NULL );
return 0;
}
void MltRuntime::stop_ulk() throw (Exception)
{
if (status == StatusRunning) {
mlt_consumer_purge(consumer);
mlt_consumer_stop(consumer);
while ( mlt_consumer_is_stopped(consumer) == 0) {
struct timespec req = {1,0};
nanosleep(&req,NULL);
}
status = StatusStopped;
}
if (consumer) {
mlt_consumer_close(consumer);
consumer = NULL;
}
}
int main( int argc, char **argv )
{
// Initialise the factory
if ( mlt_factory_init( NULL ) == 0 )
{
// Create the default consumer
mlt_consumer hello = mlt_factory_consumer( NULL, NULL );
// Create a producer using the default normalising selecter
mlt_producer world = create_tracks( argc, argv );
// Connect the producer to the consumer
mlt_consumer_connect( hello, mlt_producer_service( world ) );
// Start the consumer
mlt_consumer_start( hello );
// Wait for the consumer to terminate
while( !mlt_consumer_is_stopped( hello ) )
sleep( 1 );
// Close the consumer
mlt_consumer_close( hello );
// Close the producer
mlt_producer_close( world );
// Close the factory
mlt_factory_close( );
}
else
{
// Report an error during initialisation
fprintf( stderr, "Unable to locate factory modules\n" );
}
// End of program
return 0;
}
static void *consumer_thread( void *arg )
{
// Identify the arg
consumer_sdl self = arg;
// Get the consumer
mlt_consumer consumer = &self->parent;
// Get the properties
mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
// internal intialization
mlt_frame frame = NULL;
int last_position = -1;
int eos = 0;
int eos_threshold = 20;
if ( self->play )
eos_threshold = eos_threshold + mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( self->play ), "buffer" );
// Determine if the application is dealing with the preview
int preview_off = mlt_properties_get_int( properties, "preview_off" );
pthread_mutex_lock( &self->refresh_mutex );
self->refresh_count = 0;
pthread_mutex_unlock( &self->refresh_mutex );
// Loop until told not to
while( self->running )
{
// Get a frame from the attached producer
frame = mlt_consumer_get_frame( consumer );
// Ensure that we have a frame
if ( self->running && frame != NULL )
{
// Get the speed of the frame
double speed = mlt_properties_get_double( MLT_FRAME_PROPERTIES( frame ), "_speed" );
// Lock during the operation
mlt_service_lock( MLT_CONSUMER_SERVICE( consumer ) );
// Get refresh request for the current frame
int refresh = mlt_properties_get_int( properties, "refresh" );
// Decrement refresh and clear changed
mlt_events_block( properties, properties );
mlt_properties_set_int( properties, "refresh", 0 );
mlt_events_unblock( properties, properties );
// Unlock after the operation
mlt_service_unlock( MLT_CONSUMER_SERVICE( consumer ) );
// Set the changed property on this frame for the benefit of still
mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "refresh", refresh );
// Make sure the recipient knows that this frame isn't really rendered
mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "rendered", 0 );
// Optimisation to reduce latency
if ( speed == 1.0 )
{
if ( last_position != -1 && last_position + 1 != mlt_frame_get_position( frame ) )
mlt_consumer_purge( self->play );
last_position = mlt_frame_get_position( frame );
}
else
{
//mlt_consumer_purge( self->play );
last_position = -1;
}
// If we aren't playing normally, then use the still
if ( speed != 1 )
{
mlt_producer producer = MLT_PRODUCER( mlt_service_get_producer( MLT_CONSUMER_SERVICE( consumer ) ) );
mlt_position duration = producer? mlt_producer_get_playtime( producer ) : -1;
int pause = 0;
#ifndef SKIP_WAIT_EOS
if ( self->active == self->play )
{
// Do not interrupt the play consumer near the end
if ( duration - self->last_position > eos_threshold )
{
// Get a new frame at the sought position
mlt_frame_close( frame );
if ( producer )
mlt_producer_seek( producer, self->last_position );
frame = mlt_consumer_get_frame( consumer );
pause = 1;
}
else
{
// Send frame with speed 0 to stop it
if ( frame && !mlt_consumer_is_stopped( self->play ) )
{
mlt_consumer_put_frame( self->play, frame );
frame = NULL;
eos = 1;
}
// Check for end of stream
if ( mlt_consumer_is_stopped( self->play ) )
{
// Stream has ended
mlt_log_verbose( MLT_CONSUMER_SERVICE( consumer ), "END OF STREAM\n" );
pause = 1;
eos = 0; // reset eos indicator
}
else
{
// Prevent a tight busy loop
struct timespec tm = { 0, 100000L }; // 100 usec
nanosleep( &tm, NULL );
}
}
}
#else
pause = self->active == self->play;
#endif
if ( pause )
{
// Start the still consumer
if ( !mlt_consumer_is_stopped( self->play ) )
mlt_consumer_stop( self->play );
self->last_speed = speed;
self->active = self->still;
self->ignore_change = 0;
mlt_consumer_start( self->still );
}
// Send the frame to the active child
if ( frame && !eos )
{
mlt_properties_set_int( MLT_FRAME_PROPERTIES( frame ), "refresh", 1 );
if ( self->active )
mlt_consumer_put_frame( self->active, frame );
}
if ( pause && speed == 0.0 )
{
mlt_events_fire( properties, "consumer-sdl-paused", NULL );
}
}
// Allow a little grace time before switching consumers on speed changes
else if ( self->ignore_change -- > 0 && self->active != NULL && !mlt_consumer_is_stopped( self->active ) )
{
mlt_consumer_put_frame( self->active, frame );
}
// Otherwise use the normal player
else
{
if ( !mlt_consumer_is_stopped( self->still ) )
mlt_consumer_stop( self->still );
if ( mlt_consumer_is_stopped( self->play ) )
{
self->last_speed = speed;
self->active = self->play;
self->ignore_change = 0;
mlt_consumer_start( self->play );
}
if ( self->play )
mlt_consumer_put_frame( self->play, frame );
}
// Copy the rectangle info from the active consumer
if ( self->running && preview_off == 0 && self->active )
{
mlt_properties active = MLT_CONSUMER_PROPERTIES( self->active );
mlt_service_lock( MLT_CONSUMER_SERVICE( consumer ) );
mlt_properties_set_int( properties, "rect_x", mlt_properties_get_int( active, "rect_x" ) );
mlt_properties_set_int( properties, "rect_y", mlt_properties_get_int( active, "rect_y" ) );
mlt_properties_set_int( properties, "rect_w", mlt_properties_get_int( active, "rect_w" ) );
mlt_properties_set_int( properties, "rect_h", mlt_properties_get_int( active, "rect_h" ) );
mlt_service_unlock( MLT_CONSUMER_SERVICE( consumer ) );
}
if ( self->active == self->still )
{
pthread_mutex_lock( &self->refresh_mutex );
if ( self->running && speed == 0 && self->refresh_count <= 0 )
{
mlt_events_fire( properties, "consumer-sdl-paused", NULL );
pthread_cond_wait( &self->refresh_cond, &self->refresh_mutex );
}
self->refresh_count --;
pthread_mutex_unlock( &self->refresh_mutex );
}
}
else
{
if ( frame ) mlt_frame_close( frame );
mlt_consumer_put_frame( self->active, NULL );
self->running = 0;
}
}
if ( self->play ) mlt_consumer_stop( self->play );
if ( self->still ) mlt_consumer_stop( self->still );
return NULL;
}
static void transport( mlt_producer producer, mlt_consumer consumer )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
int silent = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "silent" );
int progress = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "progress" );
struct timespec tm = { 0, 40000000 };
int total_length = mlt_producer_get_length( producer );
int last_position = 0;
if ( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
{
if ( !silent && !progress )
{
term_init( );
fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
fprintf( stderr, "|1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|\n" );
fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
fprintf( stderr, "+---------------------------------------------------------------------+\n" );
fprintf( stderr, "| H = back 1 minute, L = forward 1 minute |\n" );
fprintf( stderr, "| h = previous frame, l = next frame |\n" );
fprintf( stderr, "| g = start of clip, j = next clip, k = previous clip |\n" );
fprintf( stderr, "| 0 = restart, q = quit, space = play |\n" );
fprintf( stderr, "+---------------------------------------------------------------------+\n" );
}
while( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
{
int value = ( silent || progress )? -1 : term_read( );
if ( value != -1 )
{
char string[ 2 ] = { value, 0 };
transport_action( producer, string );
}
#if (defined(__DARWIN__) || defined(WIN32)) && !defined(MELT_NOSDL)
event_handling( producer, consumer );
#endif
if ( !silent && mlt_properties_get_int( properties, "stats_off" ) == 0 )
{
if ( progress )
{
int current_position = mlt_producer_position( producer );
if ( current_position > last_position )
{
fprintf( stderr, "Current Frame: %10d, percentage: %10d%c",
current_position, 100 * current_position / total_length,
progress == 2 ? '\n' : '\r' );
last_position = current_position;
}
}
else
{
fprintf( stderr, "Current Position: %10d\r", (int)mlt_consumer_position( consumer ) );
}
fflush( stderr );
}
if ( silent || progress )
nanosleep( &tm, NULL );
}
if ( !silent )
fprintf( stderr, "\n" );
}
}
int mlt_consumer_start( mlt_consumer self )
{
if ( !mlt_consumer_is_stopped( self ) )
return 0;
// Stop listening to the property-changed event
mlt_event_block( self->event_listener );
// Get the properies
mlt_properties properties = MLT_CONSUMER_PROPERTIES( self );
// Determine if there's a test card producer
char *test_card = mlt_properties_get( properties, "test_card" );
// Just to make sure nothing is hanging around...
pthread_mutex_lock( &self->put_mutex );
self->put = NULL;
self->put_active = 1;
pthread_mutex_unlock( &self->put_mutex );
// Deal with it now.
if ( test_card != NULL )
{
if ( mlt_properties_get_data( properties, "test_card_producer", NULL ) == NULL )
{
// Create a test card producer
mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( self ) );
mlt_producer producer = mlt_factory_producer( profile, 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_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 );
}
}
}
else
{
// Allow the hash table to speed things up
mlt_properties_set_data( properties, "test_card_producer", NULL, 0, NULL, NULL );
}
// The profile could have changed between a stop and a restart.
apply_profile_properties( self, mlt_service_profile( MLT_CONSUMER_SERVICE(self) ), properties );
// Set the frame duration in microseconds for the frame-dropping heuristic
int frame_rate_num = mlt_properties_get_int( properties, "frame_rate_num" );
int frame_rate_den = mlt_properties_get_int( properties, "frame_rate_den" );
int frame_duration = 0;
if ( frame_rate_num && frame_rate_den )
{
frame_duration = 1000000 / frame_rate_num * frame_rate_den;
}
mlt_properties_set_int( properties, "frame_duration", frame_duration );
// Check and run an ante command
if ( mlt_properties_get( properties, "ante" ) )
if ( system( mlt_properties_get( properties, "ante" ) ) == -1 )
mlt_log( MLT_CONSUMER_SERVICE( self ), MLT_LOG_ERROR, "system(%s) failed!\n", mlt_properties_get( properties, "ante" ) );
// Set the real_time preference
self->real_time = mlt_properties_get_int( properties, "real_time" );
// For worker threads implementation, buffer must be at least # threads
if ( abs( self->real_time ) > 1 && mlt_properties_get_int( properties, "buffer" ) <= abs( self->real_time ) )
mlt_properties_set_int( properties, "_buffer", abs( self->real_time ) + 1 );
// Get the image format to use for rendering threads
const char* format = mlt_properties_get( properties, "mlt_image_format" );
if ( format )
{
if ( !strcmp( format, "rgb24" ) )
self->format = mlt_image_rgb24;
else if ( !strcmp( format, "rgb24a" ) )
self->format = mlt_image_rgb24a;
else if ( !strcmp( format, "yuv420p" ) )
self->format = mlt_image_yuv420p;
else if ( !strcmp( format, "none" ) )
self->format = mlt_image_none;
else
self->format = mlt_image_yuv422;
}
// Start the service
if ( self->start != NULL )
return self->start( self );
return 0;
}
virtual HRESULT STDMETHODCALLTYPE ScheduledPlaybackHasStopped()
{
return mlt_consumer_is_stopped( &m_consumer ) ? S_FALSE : S_OK;
}