X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fsdl%2Fconsumer_sdl.c;h=bf7e3fd50e12cd561a408cb83405128c963ac3b0;hb=f9ae36b8488bf8f32a40d482171df888913e28cd;hp=aa88deccb4b214da49545b914c12b840eb75b365;hpb=b9dbda40ec64f1d4f58e7da87125d38aa3ab54d1;p=melted diff --git a/src/modules/sdl/consumer_sdl.c b/src/modules/sdl/consumer_sdl.c index aa88dec..bf7e3fd 100644 --- a/src/modules/sdl/consumer_sdl.c +++ b/src/modules/sdl/consumer_sdl.c @@ -48,6 +48,7 @@ struct consumer_sdl_s int window_width; int window_height; float aspect_ratio; + float display_aspect; int width; int height; int playing; @@ -103,25 +104,43 @@ mlt_consumer consumer_sdl_init( char *arg ) mlt_properties_set( this->properties, "rescale", "nearest" ); // Default buffer for low latency - mlt_properties_set_int( this->properties, "buffer", 8 ); + 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 ); - // Get aspect ratio + // Get sample aspect ratio this->aspect_ratio = mlt_properties_get_double( this->properties, "aspect_ratio" ); + // Default display aspect ratio + this->display_aspect = 4.0 / 3.0; + // process actual param if ( arg == NULL || sscanf( arg, "%dx%d", &this->width, &this->height ) != 2 ) { this->width = mlt_properties_get_int( this->properties, "width" ); this->height = mlt_properties_get_int( this->properties, "height" ); + + // Default window size + this->window_width = ( float )this->height * this->display_aspect + 0.5; + this->window_height = this->height; } - - // Default window size - this->window_width = (int)( (float)this->height * 4.0/3.0 + 0.5); - this->window_height = this->height; - + else + { + if ( (int)( ( float )this->width / this->height * 1000 ) != + (int)( this->display_aspect * 1000 ) ) + { + // Override these + this->display_aspect = ( float )this->width / this->height; + this->aspect_ratio = 1.0; + mlt_properties_set_double( this->properties, "aspect_ratio", this->aspect_ratio ); + } + + // Set window size + this->window_width = this->width; + this->window_height = this->height; + } + // Set the sdl flags this->sdl_flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL | SDL_RESIZABLE; @@ -147,8 +166,15 @@ int consumer_start( mlt_consumer parent ) if ( !this->running ) { + pthread_attr_t thread_attributes; + this->running = 1; - pthread_create( &this->thread, NULL, consumer_thread, this ); + + // Inherit the scheduling priority + pthread_attr_init( &thread_attributes ); + pthread_attr_setinheritsched( &thread_attributes, PTHREAD_INHERIT_SCHED ); + + pthread_create( &this->thread, &thread_attributes, consumer_thread, this ); } return 0; @@ -246,11 +272,9 @@ 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++ ); @@ -330,7 +354,7 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame ) { // Get the image, width and height mlt_frame_get_image( frame, &image, &vfmt, &width, &height, 0 ); - + // Handle events if ( this->sdl_screen != NULL ) { @@ -347,6 +371,9 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame ) 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 ); @@ -370,42 +397,62 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame ) changed = 1; } - if ( this->sdl_screen == NULL || changed ) - { - double aspect_ratio = ( float )this->aspect_ratio * this->width / this->height; - float display_aspect_ratio = ( float )width / height; SDL_Rect rect; - if ( mlt_properties_get( properties, "rescale" ) != NULL && - !strcmp( mlt_properties_get( properties, "rescale" ), "none" ) ) - aspect_ratio = mlt_frame_get_aspect_ratio( frame ) * mlt_properties_get_int(mlt_frame_properties(frame),"width") / mlt_properties_get_int(mlt_frame_properties(frame),"height"); + + // Determine frame's display aspect ratio + float frame_aspect = mlt_frame_get_aspect_ratio( frame ) * this->width / this->height; + + // Determine window's new display aspect ratio + float this_aspect = ( float )this->window_width / this->window_height; - if ( aspect_ratio == 1 ) + // If using hardware scaler + if ( mlt_properties_get( properties, "rescale" ) != NULL && + !strcmp( mlt_properties_get( properties, "rescale" ), "none" ) ) + { + // Special case optimisation to negate odd effect of sample aspect ratio + // not corresponding exactly with image resolution. + if ( ( (int)( this_aspect * 1000 ) == (int)( this->display_aspect * 1000 ) ) && + ( (int)( mlt_frame_get_aspect_ratio( frame ) * 1000 ) == (int)( this->aspect_ratio * 1000 ) ) ) + { + rect.w = this->window_width; + rect.h = this->window_height; + } + else + { + // Use hardware scaler to normalise display aspect ratio + rect.w = frame_aspect / this_aspect * this->window_width + 0.5; + rect.h = this->window_height; + if ( rect.w > this->window_width ) + { + rect.w = this->window_width; + rect.h = this_aspect / frame_aspect * this->window_height + 0.5; + } + } + } + // Special case optimisation to negate odd effect of sample aspect ratio + // not corresponding exactly with image resolution. + else if ( (int)( this_aspect * 1000 ) == (int)( this->display_aspect * 1000 ) ) { rect.w = this->window_width; rect.h = this->window_height; } - else if ( this->window_width < this->window_height * aspect_ratio ) + // Use hardware scaler to normalise sample aspect ratio + else if ( this->window_height * frame_aspect > this->window_width ) { rect.w = this->window_width; - rect.h = this->window_width / aspect_ratio + 1; + rect.h = this->window_width / frame_aspect + 0.5; } else { - rect.w = this->window_height * aspect_ratio + 1; + rect.w = this->window_height * frame_aspect + 0.5; rect.h = this->window_height; } - - if ( mlt_properties_get_int( properties, "scale_overlay" ) ) - { - 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 ); - } - + rect.x = ( this->window_width - rect.w ) / 2; rect.y = ( this->window_height - rect.h ) / 2; - + + if ( this->sdl_screen == NULL || changed ) + { // Force an overlay recreation if ( this->sdl_overlay != NULL ) SDL_FreeYUVOverlay( this->sdl_overlay ); @@ -418,11 +465,15 @@ static int consumer_play_video( consumer_sdl this, mlt_frame frame ) 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 ); + this->sdl_overlay = SDL_CreateYUVOverlay( this->width - (this->width % 4), this->height - (this->height % 2 ), SDL_YUY2_OVERLAY, this->sdl_screen ); sdl_unlock_display(); } } - + else + { + SDL_SetClipRect( this->sdl_screen, &rect ); + } + if ( this->sdl_screen != NULL && this->sdl_overlay != NULL ) { this->buffer = this->sdl_overlay->pixels[ 0 ];