X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fsdl%2Fconsumer_sdl.c;h=9870e448ea668199afa3c4684afbaf12cfc50e26;hb=f4963a6aa07644399b273b5d2b1f9299c9047414;hp=fe64558d9a617dab682d187fbcf76867055e221d;hpb=386afac41d71e43fc7cb80cb5b34496b744f2fab;p=melted diff --git a/src/modules/sdl/consumer_sdl.c b/src/modules/sdl/consumer_sdl.c index fe64558..9870e44 100644 --- a/src/modules/sdl/consumer_sdl.c +++ b/src/modules/sdl/consumer_sdl.c @@ -3,31 +3,33 @@ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited * Author: Dan Dennedy * - * 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 #include #include +#include +#include #include #include #include #include #include #include -#include +#include /** This classes definition. */ @@ -40,21 +42,28 @@ struct consumer_sdl_s mlt_properties properties; mlt_deque queue; pthread_t thread; + int joined; int running; - uint8_t audio_buffer[ 4096 * 19 ]; + 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; 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. @@ -66,18 +75,19 @@ 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( 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( ); @@ -89,8 +99,8 @@ mlt_consumer consumer_sdl_init( char *arg ) 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 ); @@ -98,15 +108,23 @@ mlt_consumer consumer_sdl_init( char *arg ) // 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", 1 ); + mlt_properties_set_int( this->properties, "progressive", 0 ); + + // Default audio buffer + mlt_properties_set_int( this->properties, "audio_buffer", 512 ); - // Get aspect ratio - this->aspect_ratio = mlt_properties_get_double( this->properties, "aspect_ratio" ); + // 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 ) @@ -115,18 +133,17 @@ mlt_consumer consumer_sdl_init( char *arg ) 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_ASYNCBLIT | 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; } @@ -138,13 +155,87 @@ mlt_consumer consumer_sdl_init( char *arg ) 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 ); } @@ -156,16 +247,31 @@ int consumer_stop( mlt_consumer parent ) // 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; + if ( this->thread ) + 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; @@ -195,7 +301,7 @@ static void sdl_fill_audio( void *udata, uint8_t *stream, int len ) 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 ); @@ -206,7 +312,10 @@ static void sdl_fill_audio( void *udata, uint8_t *stream, int len ) 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; @@ -219,11 +328,8 @@ static void sdl_fill_audio( void *udata, uint8_t *stream, int 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; @@ -243,11 +349,9 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud 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++ ); @@ -260,6 +364,7 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud if ( mlt_properties_get_int( properties, "audio_off" ) ) { this->playing = 1; + init_audio = 1; return init_audio; } @@ -268,16 +373,15 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud 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 = 2048; + request.samples = audio_buffer; request.callback = sdl_fill_audio; request.userdata = (void *)this; if ( SDL_OpenAudio( &request, &got ) != 0 ) @@ -294,16 +398,19 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud 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 ); } @@ -315,7 +422,7 @@ static int consumer_play_audio( consumer_sdl this, mlt_frame frame, int init_aud return init_audio; } -static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elapsed, int64_t playtime ) +static int consumer_play_video( consumer_sdl this, mlt_frame frame ) { // Get the properties of this consumer mlt_properties properties = this->properties; @@ -325,86 +432,31 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elap uint8_t *image; int changed = 0; - struct timeb before; - ftime( &before ); - - if ( mlt_properties_get_int( properties, "video_off" ) ) - { - mlt_frame_close( frame ); - return 0; - } - - // Set skip - mlt_properties_set_position( mlt_frame_properties( frame ), "playtime", playtime ); - mlt_properties_set_double( mlt_frame_properties( frame ), "consumer_scale", ( double )height / mlt_properties_get_double( properties, "height" ) ); - - // Push this frame to the back of the queue - mlt_deque_push_back( this->queue, frame ); - frame = NULL; - - if ( this->playing ) - { - // We might want to use an old frame if the current frame is skipped - mlt_frame candidate = NULL; - - while ( frame == NULL && mlt_deque_count( this->queue ) ) - { - frame = mlt_deque_peek_front( this->queue ); - playtime = mlt_properties_get_position( mlt_frame_properties( frame ), "playtime" ); - - // Check if frame is in the future or past - if ( playtime > elapsed + 60 || mlt_deque_count( this->queue ) < 12 ) - { - // no frame to show or remove - frame = NULL; - break; - } - else if ( playtime < elapsed - 20 ) - { - if ( candidate != NULL ) - mlt_frame_close( candidate ); - candidate = mlt_deque_pop_front( this->queue ); - frame = NULL; - } - else - { - // Get the frame at the front of the queue - frame = mlt_deque_pop_front( this->queue ); - } - } - - if ( frame == NULL ) - frame = candidate; - else if ( candidate != NULL ) - mlt_frame_close( candidate ); - } + 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->playing && frame != NULL ) + if ( this->running && display_off == 0 ) { - //struct timeb after; - // Get the image, width and height mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 ); - - //ftime( &after ); - //fprintf( stderr, "showing %lld at %lld\n", playtime, elapsed ); - //elapsed += ( ( int64_t )after.time * 1000 + after.millitm ) - ( ( int64_t )before.time * 1000 + before.millitm ); - - //playtime = mlt_properties_get_position( mlt_frame_properties( frame ), "playtime" ); - //struct timespec slow = { 0, ( playtime - elapsed ) * 500 }; - //if ( slow.tv_nsec > 20000 ) - //nanosleep( &slow, NULL ); - - + 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: @@ -412,6 +464,9 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elap 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 ); @@ -428,85 +483,214 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame, int64_t elap } } + 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->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->sdl_screen == NULL || changed ) + if ( this->running ) { - double aspect_ratio = mlt_frame_get_aspect_ratio( frame ); - float display_aspect_ratio = (float)width / (float)height; - SDL_Rect rect; + // 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 ( mlt_properties_get_double( properties, "aspect_ratio" ) ) - aspect_ratio = mlt_properties_get_double( properties, "aspect_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 ( aspect_ratio == 1 ) + // 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; - - // Force an overlay recreation - if ( this->sdl_overlay != NULL ) - SDL_FreeYUVOverlay( this->sdl_overlay ); + 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 ); - // 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 ) { - memcpy( this->buffer, image, width * height * 2 ); + 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 ); } } - } - // Close the frame - if ( frame != NULL ) - mlt_frame_close( frame ); + 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. */ @@ -518,64 +702,83 @@ static void *consumer_thread( void *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; - - // Obtain time of thread start - struct timeb now; - int64_t start = 0; - int64_t elapsed = 0; + 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 ) { + // Get the frame properties + properties = MLT_FRAME_PROPERTIES( frame ); + // Play audio init_audio = consumer_play_audio( this, frame, init_audio, &duration ); - if ( this->playing ) + // Determine the start time now + if ( this->playing && init_video ) { - // Get the current time - ftime( &now ); - - // Determine elapsed time - if ( start == 0 ) - start = ( int64_t )now.time * 1000 + now.millitm; - else - elapsed = ( ( int64_t )now.time * 1000 + now.millitm ) - start; + // Create the video thread + pthread_create( &thread, NULL, video_thread, this ); + + // Video doesn't need to be initialised any more + init_video = 0; } - consumer_play_video( this, frame, elapsed, playtime ); + // Set playtime for this frame + mlt_properties_set_int( properties, "playtime", playtime ); + + while ( this->running && mlt_deque_count( this->queue ) > 15 ) + nanosleep( &tm, NULL ); - playtime += duration; + // 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( 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; @@ -591,6 +794,10 @@ static int consumer_get_dimensions( int *width, int *height ) // 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 ) { @@ -615,6 +822,10 @@ static int consumer_get_dimensions( int *width, int *height ) *height = attr.height; } } +#endif + + // Unlock the display + //sdl_unlock_display(); return changed; } @@ -628,16 +839,18 @@ static void consumer_close( mlt_consumer parent ) 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 ); } -