* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Dan Dennedy <dan@dennedy.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * 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 program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 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 "consumer_sdl.h"
+#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.
*/
{
struct mlt_consumer_s parent;
mlt_properties properties;
- int format;
- int video;
+ mlt_deque queue;
pthread_t thread;
+ int joined;
int running;
- uint8_t audio_buffer[ 4096 * 3 ];
+ 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;
- float aspect_ratio;
+ int previous_width;
+ int previous_height;
int width;
int height;
int playing;
- mlt_frame *queue;
- int size;
- int count;
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 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( char *arg )
+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 ) == 0 )
+ 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;
parent->close = consumer_close;
// get a handle on properties
- mlt_service service = mlt_consumer_service( parent );
- this->properties = mlt_service_properties( service );
+ 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" );
- // Get aspect ratio
- this->aspect_ratio = mlt_properties_get_double( this->properties, "aspect_ratio" );
+ // 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->height = mlt_properties_get_int( this->properties, "height" );
}
- // Default window size
- this->window_width = (int)( (float)this->height * this->aspect_ratio ) + 1;
- this->window_height = this->height;
-
// Set the sdl flags
- this->sdl_flags = SDL_HWSURFACE | SDL_DOUBLEBUF | SDL_HWACCEL | SDL_RESIZABLE;
+ 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;
}
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 );
+ 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 )
+ this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, 0, this->sdl_flags );
+
pthread_create( &this->thread, NULL, consumer_thread, this );
}
// Get the actual object
consumer_sdl this = parent->child;
- if ( this->running )
+ if ( this->joined == 0 )
{
// Kill the thread and clean up
+ this->joined = 1;
this->running = 0;
+ pthread_join( this->thread, NULL );
- pthread_mutex_lock( &this->audio_mutex );
- pthread_cond_broadcast( &this->audio_cond );
- pthread_mutex_unlock( &this->audio_mutex );
+ // internal cleanup
+ if ( this->sdl_overlay != NULL )
+ SDL_FreeYUVOverlay( this->sdl_overlay );
+ this->sdl_overlay = NULL;
- pthread_join( this->thread, 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;
consumer_sdl this = udata;
// Get the volume
- float volume = mlt_properties_get_double( this->properties, "volume" );
+ double volume = mlt_properties_get_double( this->properties, "volume" );
pthread_mutex_lock( &this->audio_mutex );
if ( this->audio_avail >= len )
{
// Place in the audio buffer
- SDL_MixAudio( stream, this->audio_buffer, len, ( int )( ( float )SDL_MIX_MAXVOLUME * volume ) );
+ 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;
// Just to be safe, wipe the stream first
memset( stream, 0, len );
- // Copy what we have into the stream
- memcpy( stream, this->audio_buffer, this->audio_avail );
-
// Mix the audio
- SDL_MixAudio( stream, stream, len, ( int )( ( float )SDL_MIX_MAXVOLUME * volume ) );
+ SDL_MixAudio( stream, this->audio_buffer, len, ( int )( ( float )SDL_MIX_MAXVOLUME * volume ) );
// No audio left
this->audio_avail = 0;
pthread_mutex_unlock( &this->audio_mutex );
}
-static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_audio )
+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 = 2;
- int frequency = 48000;
+ int channels = mlt_properties_get_int( properties, "channels" );
+ int frequency = mlt_properties_get_int( properties, "frequency" );
static int counter = 0;
- if ( mlt_properties_get_int( properties, "frequency" ) != 0 )
- frequency = mlt_properties_get_int( properties, "frequency" );
int samples = mlt_sample_calculator( mlt_properties_get_double( this->properties, "fps" ), frequency, counter++ );
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;
}
SDL_AudioSpec request;
SDL_AudioSpec got;
- SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL );
- SDL_EnableUNICODE( 1 );
+ 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_S16;
+ request.format = AUDIO_S16SYS;
request.channels = channels;
- request.samples = 1024;
+ request.samples = audio_buffer;
request.callback = sdl_fill_audio;
request.userdata = (void *)this;
if ( SDL_OpenAudio( &request, &got ) != 0 )
if ( init_audio == 0 )
{
+ mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
bytes = ( samples * channels * 2 );
pthread_mutex_lock( &this->audio_mutex );
- while ( bytes > ( sizeof( this->audio_buffer) - this->audio_avail ) )
+ while ( this->running && bytes > ( sizeof( this->audio_buffer) - this->audio_avail ) )
pthread_cond_wait( &this->audio_cond, &this->audio_mutex );
- mlt_properties properties = mlt_frame_properties( frame );
- 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;
+ 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 );
}
uint8_t *image;
int changed = 0;
- if ( mlt_properties_get_int( properties, "video_off" ) )
- {
- mlt_frame_close( frame );
- return 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->count == this->size )
+ if ( this->running && display_off == 0 )
{
- this->size += 25;
- this->queue = realloc( this->queue, sizeof( mlt_frame ) * this->size );
- }
- this->queue[ this->count ++ ] = frame;
-
- if ( this->playing )
- {
- // We're working on the oldest frame now
- frame = this->queue[ 0 ];
-
- // Shunt the frames in the queue down
- int i = 0;
- for ( i = 1; i < this->count; i ++ )
- this->queue[ i - 1 ] = this->queue[ i ];
- this->count --;
-
// 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_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 );
break;
}
}
-
}
+
+ sdl_lock_display();
if ( width != this->width || height != this->height )
{
- this->width = width;
- this->height = height;
- changed = 1;
+ if ( this->sdl_overlay != NULL )
+ SDL_FreeYUVOverlay( this->sdl_overlay );
+ this->sdl_overlay = NULL;
}
- if ( this->sdl_screen == NULL || changed )
+ if ( this->running && ( this->sdl_screen == NULL || changed ) )
{
- double aspect_ratio = mlt_frame_get_aspect_ratio( frame );
- float display_aspect_ratio = (float)width / (float)height;
- SDL_Rect rect;
+ // Force an overlay recreation
+ if ( this->sdl_overlay != NULL )
+ SDL_FreeYUVOverlay( this->sdl_overlay );
+ this->sdl_overlay = NULL;
- if ( mlt_properties_get_double( properties, "aspect_ratio" ) )
- aspect_ratio = mlt_properties_get_double( properties, "aspect_ratio" );
+ // 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 );
+ }
+
+ 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" );
- if ( aspect_ratio == 1 )
+ // 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" ) )
{
- rect.w = this->window_width;
- rect.h = this->window_height;
+ // 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;
+ }
}
- else if ( this->window_width < this->window_height * aspect_ratio )
+ // 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 ) )
{
- rect.w = this->window_width;
- rect.h = this->window_width / aspect_ratio;
+ this->rect.w = this->window_width;
+ this->rect.h = this->window_height;
}
- else
+ // Use hardware scaler to normalise sample aspect ratio
+ else if ( this->window_height * display_ratio > this->window_width )
{
- rect.w = this->window_height * aspect_ratio;
- rect.h = this->window_height;
+ this->rect.w = this->window_width;
+ this->rect.h = this->window_width / display_ratio;
}
-
- if ( mlt_properties_get_int( properties, "scale_overlay" ) )
+ else
{
- if ( ( float )rect.w * display_aspect_ratio < this->window_width )
- rect.w = ( int )( ( float )rect.w * display_aspect_ratio );
- else if ( ( float )rect.h * display_aspect_ratio < this->window_height )
- rect.h = ( int )( ( float )rect.h * display_aspect_ratio );
+ 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;
- rect.x = ( this->window_width - rect.w ) / 2;
- rect.y = ( this->window_height - rect.h ) / 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 );
- // Force an overlay recreation
- if ( this->sdl_overlay != NULL )
- SDL_FreeYUVOverlay( this->sdl_overlay );
-
- // open SDL window with video overlay, if possible
- this->sdl_screen = SDL_SetVideoMode( this->window_width, this->window_height, 0, this->sdl_flags );
+ SDL_SetClipRect( this->sdl_screen, &this->rect );
+ }
- if ( this->sdl_screen != NULL )
- {
- SDL_SetClipRect( this->sdl_screen, &rect );
-
- sdl_lock_display();
- this->sdl_overlay = SDL_CreateYUVOverlay( this->width - (this->width % 4), this->height- (this->height % 2 ), SDL_YUY2_OVERLAY, this->sdl_screen );
- sdl_unlock_display();
- }
+ 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->sdl_screen != NULL && this->sdl_overlay != NULL )
+
+ 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 )
{
- mlt_resize_yuv422( this->buffer, this->width - (this->width % 4 ), this->height- (this->height % 2 ), image, width, height );
+ 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
+ else if ( this->running )
{
- frame = NULL;
+ 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 );
}
- // Close the frame
- if ( frame != NULL )
- mlt_frame_close( frame );
+ 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;
- if ( this->count )
+ // 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 )
{
- // Tell the producers about our scale relative to the normalisation
- mlt_properties_set_double( mlt_frame_properties( this->queue[ this->count - 1 ] ), "consumer_scale",
- ( double )height / mlt_properties_get_double( properties, "height" ) );
- mlt_frame_get_image( this->queue[ this->count - 1 ], &image, &vfmt, &width, &height, 0 );
+ // 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;
}
- return 0;
+ if ( next != NULL )
+ mlt_frame_close( next );
+
+ mlt_consumer_stopped( &this->parent );
+
+ return NULL;
}
/** Threaded wrapper for pipe.
// 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 };
- if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE ) < 0 )
- {
- fprintf( stderr, "Failed to initialize SDL: %s\n", SDL_GetError() );
- return NULL;
- }
-
// Loop until told not to
- while( this->running )
+ while( !terminated && this->running )
{
// Get a frame from the attached producer
- mlt_frame frame = mlt_consumer_get_frame( consumer );
+ 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 )
{
- // SDL adapts display aspect, but set this so pixel aspect can be normalised
-// mlt_properties_set_double( mlt_frame_properties( frame ), "consumer_aspect_ratio",
-// mlt_frame_get_aspect_ratio( frame ) );
-
- init_audio = consumer_play_audio( this, frame, init_audio );
- consumer_play_video( this, frame );
+ // 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 );
}
}
- // internal cleanup
- if ( init_audio == 0 )
- SDL_AudioQuit( );
- if ( this->sdl_overlay != NULL )
- SDL_FreeYUVOverlay( this->sdl_overlay );
- SDL_Quit( );
+ 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( -- this->count >= 0 )
- mlt_frame_close( this->queue[ this->count ] );
+ while( mlt_deque_count( this->queue ) )
+ mlt_frame_close( mlt_deque_pop_back( this->queue ) );
this->sdl_screen = NULL;
- this->sdl_overlay = NULL;
this->audio_avail = 0;
return NULL;
// 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 )
{
*height = attr.height;
}
}
+#endif
+
+ // Unlock the display
+ //sdl_unlock_display();
return changed;
}
consumer_sdl this = parent->child;
// Stop the consumer
- mlt_consumer_stop( parent );
+ ///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 );
- // Now clean up the rest
- mlt_consumer_close( parent );
-
// Finally clean up this
free( this );
}
-
projects / mlt / blobdiff