/***************************************************************************** * logo.c : logo video plugin for vlc ***************************************************************************** * Copyright (C) 2003-2006 the VideoLAN team * $Id$ * * Authors: Gildas Bazin * Simon Latapie * * 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 program 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. * * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ /***************************************************************************** * Preamble *****************************************************************************/ #include /* malloc(), free() */ #include #include #include #include "vlc_filter.h" #include "filter_common.h" #include "vlc_image.h" #include "vlc_osd.h" #ifdef LoadImage # undef LoadImage #endif /***************************************************************************** * Local prototypes *****************************************************************************/ static int Create ( vlc_object_t * ); static void Destroy ( vlc_object_t * ); static int Init ( vout_thread_t * ); static void End ( vout_thread_t * ); static void Render ( vout_thread_t *, picture_t * ); static int SendEvents( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int MouseEvent( vlc_object_t *, char const *, vlc_value_t , vlc_value_t , void * ); static int Control ( vout_thread_t *, int, va_list ); static int CreateFilter ( vlc_object_t * ); static void DestroyFilter( vlc_object_t * ); static int LogoCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); /***************************************************************************** * Module descriptor *****************************************************************************/ #define FILE_TEXT N_("Logo filenames") #define FILE_LONGTEXT N_("Full path of the image files to use. Format is " \ "[,[,]][;[,[,]]][;...]. " \ "If you only have one file, simply enter its filename.") #define REPEAT_TEXT N_("Logo animation # of loops") #define REPEAT_LONGTEXT N_("Number of loops for the logo animation." \ "-1 = continuous, 0 = disabled") #define DELAY_TEXT N_("Logo individual image time in ms") #define DELAY_LONGTEXT N_("Individual image display time of 0 - 60000 ms.") #define POSX_TEXT N_("X coordinate") #define POSX_LONGTEXT N_("X coordinate of the logo. You can move the logo " \ "by left-clicking it." ) #define POSY_TEXT N_("Y coordinate") #define POSY_LONGTEXT N_("Y coordinate of the logo. You can move the logo " \ "by left-clicking it." ) #define TRANS_TEXT N_("Transparency of the logo") #define TRANS_LONGTEXT N_("Logo transparency value " \ "(from 0 for full transparency to 255 for full opacity)." ) #define POS_TEXT N_("Logo position") #define POS_LONGTEXT N_( \ "Enforce the logo position on the video " \ "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \ "also use combinations of these values, eg 6 = top-right).") #define CFG_PREFIX "logo-" static int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 }; static const char *ppsz_pos_descriptions[] = { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"), N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") }; vlc_module_begin(); set_description( _("Logo video filter") ); set_capability( "video filter", 0 ); set_shortname( _("Logo overlay") ); set_category( CAT_VIDEO ); set_subcategory( SUBCAT_VIDEO_SUBPIC ); add_shortcut( "logo" ); set_callbacks( Create, Destroy ); add_file( CFG_PREFIX "file", NULL, NULL, FILE_TEXT, FILE_LONGTEXT, VLC_FALSE ); add_integer( CFG_PREFIX "x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_TRUE ); add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_TRUE ); /* default to 1000 ms per image, continuously cycle through them */ add_integer( CFG_PREFIX "delay", 1000, NULL, DELAY_TEXT, DELAY_LONGTEXT, VLC_TRUE ); add_integer( CFG_PREFIX "repeat", -1, NULL, REPEAT_TEXT, REPEAT_LONGTEXT, VLC_TRUE ); add_integer_with_range( CFG_PREFIX "transparency", 255, 0, 255, NULL, TRANS_TEXT, TRANS_LONGTEXT, VLC_FALSE ); add_integer( CFG_PREFIX "position", 6, NULL, POS_TEXT, POS_LONGTEXT, VLC_FALSE ); change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 ); /* subpicture filter submodule */ add_submodule(); set_capability( "sub filter", 0 ); set_callbacks( CreateFilter, DestroyFilter ); set_description( _("Logo sub filter") ); vlc_module_end(); static const char *ppsz_filter_options[] = { "file", "x", "y", "delay", "repeat", "transparency", "position", NULL }; /***************************************************************************** * Structure to hold the set of individual logo image names, times, * transparencies ****************************************************************************/ typedef struct { char *psz_file; /* candidate for deletion -- not needed */ int i_delay; /* -1 means use default delay */ int i_alpha; /* -1 means use default alpha */ picture_t *p_pic; } logo_t; /***************************************************************************** * Logo list structure. Common to both the vout and sub picture filter ****************************************************************************/ typedef struct { logo_t *p_logo; /* the parsing's result */ unsigned int i_count; /* the number of logo images to be displayed */ int i_repeat; /* how often to repeat the images, image time in ms */ mtime_t i_next_pic; /* when to bring up a new logo image */ unsigned int i_counter; /* index into the list of logo images */ int i_delay; /* default delay (0 - 60000 ms) */ int i_alpha; /* default alpha */ char *psz_filename; /* --logo-file string ( is it really useful * to store it ? ) */ vlc_mutex_t lock; } logo_list_t; /***************************************************************************** * LoadImage: loads the logo image into memory *****************************************************************************/ static picture_t *LoadImage( vlc_object_t *p_this, char *psz_filename ) { picture_t *p_pic; image_handler_t *p_image; video_format_t fmt_in; video_format_t fmt_out; memset( &fmt_in, 0, sizeof(video_format_t) ); memset( &fmt_out, 0, sizeof(video_format_t) ); fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A'); p_image = image_HandlerCreate( p_this ); p_pic = image_ReadUrl( p_image, psz_filename, &fmt_in, &fmt_out ); image_HandlerDelete( p_image ); return p_pic; } /***************************************************************************** * LoadLogoList: loads the logo images into memory ***************************************************************************** * Read the logo-file input switch, obtaining a list of images and associated * durations and transparencies. Store the image(s), and times. An image * without a stated time or transparency will use the logo-delay and * logo-transparency values. *****************************************************************************/ #define LoadLogoList( a, b ) __LoadLogoList( VLC_OBJECT( a ), b ) static void __LoadLogoList( vlc_object_t *p_this, logo_list_t *p_logo_list ) { char *psz_list; /* the list: [,[[,[]]]][;...] */ unsigned int i; logo_t *p_logo; /* the parsing's result */ p_logo_list->i_counter = 0; p_logo_list->i_next_pic = 0; psz_list = strdup( p_logo_list->psz_filename ); /* Count the number logos == number of ';' + 1 */ p_logo_list->i_count = 1; for( i = 0; i < strlen( psz_list ); i++ ) { if( psz_list[i] == ';' ) p_logo_list->i_count++; } p_logo_list->p_logo = p_logo = (logo_t *)malloc( p_logo_list->i_count * sizeof(logo_t) ); /* Fill the data */ for( i = 0; i < p_logo_list->i_count; i++ ) { char *p_c; char *p_c2; p_c = strchr( psz_list, ';' ); p_c2 = strchr( psz_list, ',' ); p_logo[i].i_alpha = -1; /* use default settings */ p_logo[i].i_delay = -1; /* use default settings */ if( p_c2 && ( p_c2 < p_c || !p_c ) ) { /* ,[,] type */ if( p_c2[1] != ',' && p_c2[1] != ';' && p_c2[1] != '\0' ) p_logo[i].i_delay = atoi( p_c2+1 ); *p_c2 = '\0'; if( ( p_c2 = strchr( p_c2+1, ',' ) ) && ( p_c2 < p_c || !p_c ) && p_c2[1] != ';' && p_c2[1] != '\0' ) p_logo[i].i_alpha = atoi( p_c2 + 1 ); } else { /* type */ if( p_c ) *p_c = '\0'; } p_logo[i].psz_file = strdup( psz_list ); p_logo[i].p_pic = LoadImage( p_this, p_logo[i].psz_file ); if( !p_logo[i].p_pic ) { msg_Warn( p_this, "error while loading logo %s, will be skipped", p_logo[i].psz_file ); } if( p_c ) psz_list = p_c + 1; } for( i = 0; i < p_logo_list->i_count; i++ ) { msg_Dbg( p_this, "logo file name %s, delay %d, alpha %d", p_logo[i].psz_file, p_logo[i].i_delay, p_logo[i].i_alpha ); } /* initialize so that on the first update it will wrap back to 0 */ p_logo_list->i_counter = p_logo_list->i_count; } /***************************************************************************** * FreeLogoList *****************************************************************************/ static void FreeLogoList( logo_list_t *p_logo_list ) { unsigned int i; FREENULL( p_logo_list->psz_filename ); for( i = 0; i < p_logo_list->i_count; i++ ) { logo_t *p_logo = &p_logo_list->p_logo[i]; FREENULL( p_logo->psz_file ); if( p_logo->p_pic ) { p_logo->p_pic->pf_release( p_logo->p_pic ); p_logo->p_pic = NULL; } } } /***************************************************************************** * vout_sys_t: logo video output method descriptor ***************************************************************************** * This structure is part of the video output thread descriptor. * It describes the Invert specific properties of an output thread. *****************************************************************************/ struct vout_sys_t { logo_list_t *p_logo_list; vout_thread_t *p_vout; filter_t *p_blend; int i_width, i_height; int pos, posx, posy; }; /***************************************************************************** * Create: allocates logo video thread output method *****************************************************************************/ static int Create( vlc_object_t *p_this ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; vout_sys_t *p_sys; logo_list_t *p_logo_list; /* Allocate structure */ p_sys = p_vout->p_sys = malloc( sizeof( vout_sys_t ) ); if( p_sys == NULL ) { msg_Err( p_vout, "out of memory" ); return VLC_ENOMEM; } p_logo_list = p_sys->p_logo_list = malloc( sizeof( logo_list_t ) ); if( p_logo_list == NULL ) { msg_Err( p_vout, "out of memory" ); free( p_sys ); return VLC_ENOMEM; } p_vout->pf_init = Init; p_vout->pf_end = End; p_vout->pf_manage = NULL; p_vout->pf_render = Render; p_vout->pf_display = NULL; p_vout->pf_control = Control; config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options, p_vout->p_cfg ); p_logo_list->psz_filename = var_CreateGetStringCommand( p_vout, "logo-file" ); if( !p_logo_list->psz_filename || !*p_logo_list->psz_filename ) { msg_Err( p_vout, "logo file not specified" ); return 0; } p_sys->pos = var_CreateGetIntegerCommand( p_vout, "logo-position" ); p_sys->posx = var_CreateGetIntegerCommand( p_vout, "logo-x" ); p_sys->posy = var_CreateGetIntegerCommand( p_vout, "logo-y" ); p_logo_list->i_delay = __MAX( __MIN( var_CreateGetIntegerCommand( p_vout, "logo-delay" ) , 60000 ), 0 ); p_logo_list->i_repeat = var_CreateGetIntegerCommand( p_vout, "logo-repeat"); p_logo_list->i_alpha = __MAX( __MIN( var_CreateGetIntegerCommand( p_vout, "logo-transparency" ), 255 ), 0 ); LoadLogoList( p_vout, p_logo_list ); return VLC_SUCCESS; } /***************************************************************************** * Init: initialize logo video thread output method *****************************************************************************/ static int Init( vout_thread_t *p_vout ) { vout_sys_t *p_sys = p_vout->p_sys; picture_t *p_pic; int i_index; video_format_t fmt; logo_list_t *p_logo_list = p_sys->p_logo_list; I_OUTPUTPICTURES = 0; memset( &fmt, 0, sizeof(video_format_t) ); /* adjust index to the next logo */ p_logo_list->i_counter = ( p_logo_list->i_counter + 1 )%p_logo_list->i_count; p_pic = p_logo_list->p_logo[p_logo_list->i_counter].p_pic; /* Initialize the output structure */ p_vout->output.i_chroma = p_vout->render.i_chroma; p_vout->output.i_width = p_vout->render.i_width; p_vout->output.i_height = p_vout->render.i_height; p_vout->output.i_aspect = p_vout->render.i_aspect; p_vout->fmt_out = p_vout->fmt_in; fmt = p_vout->fmt_out; /* Load the video blending filter */ p_sys->p_blend = vlc_object_create( p_vout, sizeof(filter_t) ); vlc_object_attach( p_sys->p_blend, p_vout ); p_sys->p_blend->fmt_out.video.i_x_offset = p_sys->p_blend->fmt_out.video.i_y_offset = 0; p_sys->p_blend->fmt_in.video.i_x_offset = p_sys->p_blend->fmt_in.video.i_y_offset = 0; p_sys->p_blend->fmt_out.video.i_aspect = p_vout->render.i_aspect; p_sys->p_blend->fmt_out.video.i_chroma = p_vout->output.i_chroma; p_sys->p_blend->fmt_in.video.i_chroma = VLC_FOURCC('Y','U','V','A'); p_sys->p_blend->fmt_in.video.i_aspect = VOUT_ASPECT_FACTOR; p_sys->i_width = p_sys->p_blend->fmt_in.video.i_width = p_sys->p_blend->fmt_in.video.i_visible_width = p_pic ? p_pic->p[Y_PLANE].i_visible_pitch : 0; p_sys->i_height = p_sys->p_blend->fmt_in.video.i_height = p_sys->p_blend->fmt_in.video.i_visible_height = p_pic ? p_pic->p[Y_PLANE].i_visible_lines : 0; p_sys->p_blend->fmt_out.video.i_width = p_sys->p_blend->fmt_out.video.i_visible_width = p_vout->output.i_width; p_sys->p_blend->fmt_out.video.i_height = p_sys->p_blend->fmt_out.video.i_visible_height = p_vout->output.i_height; p_sys->p_blend->p_module = module_Need( p_sys->p_blend, "video blending", 0, 0 ); if( !p_sys->p_blend->p_module ) { msg_Err( p_vout, "can't open blending filter, aborting" ); vlc_object_detach( p_sys->p_blend ); vlc_object_destroy( p_sys->p_blend ); return VLC_EGENERIC; } if( p_sys->posx < 0 || p_sys->posy < 0 ) { p_sys->posx = 0; p_sys->posy = 0; if( p_sys->pos & SUBPICTURE_ALIGN_BOTTOM ) { p_sys->posy = p_vout->render.i_height - p_sys->i_height; } else if ( !(p_sys->pos & SUBPICTURE_ALIGN_TOP) ) { p_sys->posy = p_vout->render.i_height / 2 - p_sys->i_height / 2; } if( p_sys->pos & SUBPICTURE_ALIGN_RIGHT ) { p_sys->posx = p_vout->render.i_width - p_sys->i_width; } else if ( !(p_sys->pos & SUBPICTURE_ALIGN_LEFT) ) { p_sys->posx = p_vout->render.i_width / 2 - p_sys->i_width / 2; } } else { p_sys->pos = 0; } /* Try to open the real video output */ msg_Dbg( p_vout, "spawning the real video output" ); p_sys->p_vout = vout_Create( p_vout, &fmt ); /* Everything failed */ if( p_sys->p_vout == NULL ) { msg_Err( p_vout, "can't open vout, aborting" ); return VLC_EGENERIC; } var_AddCallback( p_sys->p_vout, "mouse-x", MouseEvent, p_vout); var_AddCallback( p_sys->p_vout, "mouse-y", MouseEvent, p_vout); ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES ); ADD_CALLBACKS( p_sys->p_vout, SendEvents ); ADD_PARENT_CALLBACKS( SendEventsToChild ); return VLC_SUCCESS; } /***************************************************************************** * End: terminate logo video thread output method *****************************************************************************/ static void End( vout_thread_t *p_vout ) { vout_sys_t *p_sys = p_vout->p_sys; int i_index; /* Free the fake output buffers we allocated */ for( i_index = I_OUTPUTPICTURES ; i_index ; ) { i_index--; free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig ); } var_DelCallback( p_sys->p_vout, "mouse-x", MouseEvent, p_vout); var_DelCallback( p_sys->p_vout, "mouse-y", MouseEvent, p_vout); if( p_sys->p_vout ) { DEL_CALLBACKS( p_sys->p_vout, SendEvents ); vlc_object_detach( p_sys->p_vout ); vout_Destroy( p_sys->p_vout ); } if( p_sys->p_blend->p_module ) module_Unneed( p_sys->p_blend, p_sys->p_blend->p_module ); vlc_object_detach( p_sys->p_blend ); vlc_object_destroy( p_sys->p_blend ); } /***************************************************************************** * Destroy: destroy logo video thread output method *****************************************************************************/ static void Destroy( vlc_object_t *p_this ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; vout_sys_t *p_sys = p_vout->p_sys; DEL_PARENT_CALLBACKS( SendEventsToChild ); FreeLogoList( p_sys->p_logo_list ); free( p_sys->p_logo_list ); free( p_sys ); } /***************************************************************************** * Render: render the logo onto the video *****************************************************************************/ static void Render( vout_thread_t *p_vout, picture_t *p_inpic ) { vout_sys_t *p_sys = p_vout->p_sys; picture_t *p_outpic; picture_t *p_pic; logo_list_t *p_logo_list; logo_t * p_logo; p_logo_list = p_sys->p_logo_list; if( p_logo_list->i_next_pic < p_inpic->date ) { /* It's time to use a new logo */ p_logo_list->i_counter = ( p_logo_list->i_counter + 1 )%p_logo_list->i_count; p_logo = &p_logo_list->p_logo[p_sys->p_logo_list->i_counter]; p_pic = p_logo->p_pic; p_logo_list->i_next_pic = p_inpic->date + ( p_logo->i_delay != -1 ? p_logo->i_delay : p_logo_list->i_delay ) * 1000; if( p_pic ) { p_sys->i_width = p_sys->p_blend->fmt_in.video.i_width = p_sys->p_blend->fmt_in.video.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch; p_sys->i_height = p_sys->p_blend->fmt_in.video.i_height = p_sys->p_blend->fmt_in.video.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines; if( p_sys->pos ) { if( p_sys->pos & SUBPICTURE_ALIGN_BOTTOM ) { p_sys->posy = p_vout->render.i_height - p_sys->i_height; } else if ( !(p_sys->pos & SUBPICTURE_ALIGN_TOP) ) { p_sys->posy = p_vout->render.i_height/2 - p_sys->i_height/2; } if( p_sys->pos & SUBPICTURE_ALIGN_RIGHT ) { p_sys->posx = p_vout->render.i_width - p_sys->i_width; } else if ( !(p_sys->pos & SUBPICTURE_ALIGN_LEFT) ) { p_sys->posx = p_vout->render.i_width/2 - p_sys->i_width/2; } } } } else { p_logo = &p_logo_list->p_logo[p_sys->p_logo_list->i_counter]; p_pic = p_logo->p_pic; } /* This is a new frame. Get a structure from the video_output. */ while( !(p_outpic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 )) ) { if( p_vout->b_die || p_vout->b_error ) return; msleep( VOUT_OUTMEM_SLEEP ); } vout_CopyPicture( p_vout, p_outpic, p_inpic ); vout_DatePicture( p_sys->p_vout, p_outpic, p_inpic->date ); if( p_pic ) p_sys->p_blend->pf_video_blend( p_sys->p_blend, p_outpic, p_outpic, p_pic, p_sys->posx, p_sys->posy, p_logo->i_alpha != -1 ? p_logo->i_alpha : p_logo_list->i_alpha ); vout_DisplayPicture( p_sys->p_vout, p_outpic ); } /***************************************************************************** * SendEvents: forward mouse and keyboard events to the parent p_vout *****************************************************************************/ static int SendEvents( vlc_object_t *p_this, char const *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { var_Set( (vlc_object_t *)p_data, psz_var, newval ); return VLC_SUCCESS; } /***************************************************************************** * MouseEvent: callback for mouse events *****************************************************************************/ static int MouseEvent( vlc_object_t *p_this, char const *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t*)p_data; vout_sys_t *p_sys = p_vout->p_sys; vlc_value_t valb; int i_delta; var_Get( p_vout->p_sys->p_vout, "mouse-button-down", &valb ); i_delta = newval.i_int - oldval.i_int; if( (valb.i_int & 0x1) == 0 ) { return VLC_SUCCESS; } if( psz_var[6] == 'x' ) { vlc_value_t valy; var_Get( p_vout->p_sys->p_vout, "mouse-y", &valy ); if( newval.i_int >= (int)p_sys->posx && valy.i_int >= (int)p_sys->posy && newval.i_int <= (int)(p_sys->posx + p_sys->i_width) && valy.i_int <= (int)(p_sys->posy + p_sys->i_height) ) { p_sys->posx = __MIN( __MAX( p_sys->posx + i_delta, 0 ), p_vout->output.i_width - p_sys->i_width ); } } else if( psz_var[6] == 'y' ) { vlc_value_t valx; var_Get( p_vout->p_sys->p_vout, "mouse-x", &valx ); if( valx.i_int >= (int)p_sys->posx && newval.i_int >= (int)p_sys->posy && valx.i_int <= (int)(p_sys->posx + p_sys->i_width) && newval.i_int <= (int)(p_sys->posy + p_sys->i_height) ) { p_sys->posy = __MIN( __MAX( p_sys->posy + i_delta, 0 ), p_vout->output.i_height - p_sys->i_height ); } } return VLC_SUCCESS; } /***************************************************************************** * Control: control facility for the vout (forwards to child vout) *****************************************************************************/ static int Control( vout_thread_t *p_vout, int i_query, va_list args ) { return vout_vaControl( p_vout->p_sys->p_vout, i_query, args ); } /***************************************************************************** * SendEventsToChild: forward events to the child/children vout *****************************************************************************/ static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; var_Set( p_vout->p_sys->p_vout, psz_var, newval ); return VLC_SUCCESS; } /***************************************************************************** * filter_sys_t: logo filter descriptor *****************************************************************************/ struct filter_sys_t { logo_list_t *p_logo_list; int pos, posx, posy; vlc_bool_t b_absolute; mtime_t i_last_date; /* On the fly control variable */ vlc_bool_t b_need_update; }; static subpicture_t *Filter( filter_t *, mtime_t ); /***************************************************************************** * CreateFilter: allocates logo video filter *****************************************************************************/ static int CreateFilter( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t *)p_this; filter_sys_t *p_sys; logo_list_t *p_logo_list; /* Allocate structure */ p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) ); if( p_sys == NULL ) { msg_Err( p_filter, "out of memory" ); return VLC_ENOMEM; } p_logo_list = p_sys->p_logo_list = malloc( sizeof( logo_list_t ) ); if( p_logo_list == NULL ) { msg_Err( p_filter, "out of memory" ); free( p_sys ); return VLC_ENOMEM; } config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options, p_filter->p_cfg ); /* Hook used for callback variables */ p_logo_list->psz_filename = var_CreateGetStringCommand( p_filter, "logo-file" ); if( !p_logo_list->psz_filename || !*p_logo_list->psz_filename ) { msg_Err( p_this, "logo file not specified" ); free( p_sys ); free( p_logo_list ); return VLC_EGENERIC; } p_sys->posx = var_CreateGetIntegerCommand( p_filter, "logo-x" ); p_sys->posy = var_CreateGetIntegerCommand( p_filter, "logo-y" ); p_sys->pos = var_CreateGetIntegerCommand( p_filter, "logo-position" ); p_logo_list->i_alpha = __MAX( __MIN( var_CreateGetIntegerCommand( p_filter, "logo-transparency"), 255 ), 0 ); p_logo_list->i_delay = var_CreateGetIntegerCommand( p_filter, "logo-delay" ); p_logo_list->i_repeat = var_CreateGetIntegerCommand( p_filter, "logo-repeat" ); var_AddCallback( p_filter, "logo-file", LogoCallback, p_sys ); var_AddCallback( p_filter, "logo-x", LogoCallback, p_sys ); var_AddCallback( p_filter, "logo-y", LogoCallback, p_sys ); var_AddCallback( p_filter, "logo-position", LogoCallback, p_sys ); var_AddCallback( p_filter, "logo-transparency", LogoCallback, p_sys ); var_AddCallback( p_filter, "logo-repeat", LogoCallback, p_sys ); vlc_mutex_init( p_filter, &p_logo_list->lock ); vlc_mutex_lock( &p_logo_list->lock ); LoadLogoList( p_this, p_logo_list ); vlc_mutex_unlock( &p_logo_list->lock ); /* Misc init */ p_filter->pf_sub_filter = Filter; p_sys->b_need_update = VLC_TRUE; p_sys->i_last_date = 0; return VLC_SUCCESS; } /***************************************************************************** * DestroyFilter: destroy logo video filter *****************************************************************************/ static void DestroyFilter( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t *)p_this; filter_sys_t *p_sys = p_filter->p_sys; vlc_mutex_destroy( &p_sys->p_logo_list->lock ); FreeLogoList( p_sys->p_logo_list ); free( p_sys->p_logo_list ); free( p_sys ); /* Delete the logo variables from INPUT */ var_Destroy( p_filter->p_libvlc, "logo-file" ); var_Destroy( p_filter->p_libvlc, "logo-x" ); var_Destroy( p_filter->p_libvlc, "logo-y" ); var_Destroy( p_filter->p_libvlc, "logo-delay" ); var_Destroy( p_filter->p_libvlc, "logo-repeat" ); var_Destroy( p_filter->p_libvlc, "logo-position" ); var_Destroy( p_filter->p_libvlc, "logo-transparency" ); } /***************************************************************************** * Filter: the whole thing ***************************************************************************** * This function outputs subpictures at regular time intervals. *****************************************************************************/ static subpicture_t *Filter( filter_t *p_filter, mtime_t date ) { filter_sys_t *p_sys = p_filter->p_sys; logo_list_t *p_logo_list = p_sys->p_logo_list; subpicture_t *p_spu; subpicture_region_t *p_region; video_format_t fmt; picture_t *p_pic; logo_t *p_logo; vlc_mutex_lock( &p_logo_list->lock ); /* Basic test: b_need_update occurs on a dynamic change, & i_next_pic is the general timer, when to look at updating the logo image */ if( ( ( !p_sys->b_need_update ) && ( p_logo_list->i_next_pic > date ) ) || !p_logo_list->i_repeat ) { vlc_mutex_unlock( &p_logo_list->lock ); return 0; } /* prior code tested on && p_sys->i_last_date +5000000 > date ) return 0; */ /* adjust index to the next logo */ p_logo_list->i_counter = ( p_logo_list->i_counter + 1 )%p_logo_list->i_count; p_logo = &p_logo_list->p_logo[p_logo_list->i_counter]; p_pic = p_logo->p_pic; /* Allocate the subpicture internal data. */ p_spu = p_filter->pf_sub_buffer_new( p_filter ); if( !p_spu ) { vlc_mutex_unlock( &p_logo_list->lock ); return NULL; } p_spu->b_absolute = p_sys->b_absolute; p_spu->i_start = p_sys->i_last_date = date; p_spu->i_stop = 0; p_spu->b_ephemer = VLC_TRUE; p_sys->b_need_update = VLC_FALSE; p_logo_list->i_next_pic = date + ( p_logo->i_delay != -1 ? p_logo->i_delay : p_logo_list->i_delay ) * 1000; if( p_logo_list->i_repeat != -1 && p_logo_list->i_counter == 0 ) { p_logo_list->i_repeat--; if( p_logo_list->i_repeat == 0 ) { vlc_mutex_unlock( &p_logo_list->lock ); return p_spu; } } if( !p_pic || !p_logo->i_alpha || ( p_logo->i_alpha == -1 && !p_logo_list->i_alpha ) ) { /* Send an empty subpicture to clear the display */ vlc_mutex_unlock( &p_logo_list->lock ); return p_spu; } /* Create new SPU region */ memset( &fmt, 0, sizeof(video_format_t) ); fmt.i_chroma = VLC_FOURCC('Y','U','V','A'); fmt.i_aspect = VOUT_ASPECT_FACTOR; fmt.i_sar_num = fmt.i_sar_den = 1; fmt.i_width = fmt.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch; fmt.i_height = fmt.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines; fmt.i_x_offset = fmt.i_y_offset = 0; p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt ); if( !p_region ) { msg_Err( p_filter, "cannot allocate SPU region" ); p_filter->pf_sub_buffer_del( p_filter, p_spu ); vlc_mutex_unlock( &p_logo_list->lock ); return NULL; } vout_CopyPicture( p_filter, &p_region->picture, p_pic ); vlc_mutex_unlock( &p_logo_list->lock ); /* where to locate the logo: */ if( p_sys->posx < 0 || p_sys->posy < 0 ) { /* set to one of the 9 relative locations */ p_region->i_align = p_sys->pos; p_spu->i_x = 0; p_spu->i_y = 0; p_spu->b_absolute = VLC_FALSE; } else { /* set to an absolute xy, referenced to upper left corner */ p_region->i_align = OSD_ALIGN_LEFT | OSD_ALIGN_TOP; p_spu->i_x = p_sys->posx; p_spu->i_y = p_sys->posy; p_spu->b_absolute = VLC_TRUE; } p_spu->p_region = p_region; p_spu->i_alpha = ( p_logo->i_alpha != -1 ? p_logo->i_alpha : p_logo_list->i_alpha ); return p_spu; } /***************************************************************************** * Callback to update params on the fly *****************************************************************************/ static int LogoCallback( vlc_object_t *p_this, char const *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { filter_sys_t *p_sys = (filter_sys_t *)p_data; logo_list_t *p_logo_list = p_sys->p_logo_list; if( !strncmp( psz_var, "logo-file", 6 ) ) { vlc_mutex_lock( &p_logo_list->lock ); FreeLogoList( p_logo_list ); p_logo_list->psz_filename = strdup( newval.psz_string ); LoadLogoList( p_this, p_logo_list ); vlc_mutex_unlock( &p_logo_list->lock ); p_sys->b_need_update = VLC_TRUE; } else if ( !strncmp( psz_var, "logo-x", 6 ) ) { p_sys->posx = newval.i_int; } else if ( !strncmp( psz_var, "logo-y", 6 ) ) { p_sys->posy = newval.i_int; } else if ( !strncmp( psz_var, "logo-position", 12 ) ) { p_sys->pos = newval.i_int; } else if ( !strncmp( psz_var, "logo-transparency", 9 ) ) { vlc_mutex_lock( &p_logo_list->lock ); p_logo_list->i_alpha = __MAX( __MIN( newval.i_int, 255 ), 0 ); vlc_mutex_unlock( &p_logo_list->lock ); } else if ( !strncmp( psz_var, "logo-repeat", 11 ) ) { vlc_mutex_lock( &p_logo_list->lock ); p_logo_list->i_repeat = newval.i_int; vlc_mutex_unlock( &p_logo_list->lock ); } p_sys->b_need_update = VLC_TRUE; return VLC_SUCCESS; }