logo.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:32k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * logo.c : logo video plugin for vlc
- *****************************************************************************
- * Copyright (C) 2003-2006 the VideoLAN team
- * $Id: 92dd9c2ca8f08c4954cfcbb42c6d519c1afc8073 $
- *
- * Authors: Gildas Bazin <gbazin@videolan.org>
- * Simon Latapie <garf@videolan.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 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
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_plugin.h>
- #include <vlc_vout.h>
- #include <assert.h>
- #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 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 "
- "<image>[,<delay in ms>[,<alpha>]][;<image>[,<delay>[,<alpha>]]][;...]. "
- "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 const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
- static const char *const 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_capability( "sub filter", 0 )
- set_callbacks( CreateFilter, DestroyFilter )
- set_description( N_("Logo sub filter") )
- set_shortname( N_("Logo overlay") )
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_SUBPIC )
- add_shortcut( "logo" )
- add_file( CFG_PREFIX "file", NULL, NULL, FILE_TEXT, FILE_LONGTEXT, false )
- add_integer( CFG_PREFIX "x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, true )
- add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, true )
- /* default to 1000 ms per image, continuously cycle through them */
- add_integer( CFG_PREFIX "delay", 1000, NULL, DELAY_TEXT, DELAY_LONGTEXT, true )
- add_integer( CFG_PREFIX "repeat", -1, NULL, REPEAT_TEXT, REPEAT_LONGTEXT, true )
- add_integer_with_range( CFG_PREFIX "transparency", 255, 0, 255, NULL,
- TRANS_TEXT, TRANS_LONGTEXT, false )
- add_integer( CFG_PREFIX "position", -1, NULL, POS_TEXT, POS_LONGTEXT, false )
- change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
- /* video output filter submodule */
- add_submodule ()
- set_capability( "video filter", 0 )
- set_callbacks( Create, Destroy )
- set_description( N_("Logo video filter") )
- add_shortcut( "logo" )
- vlc_module_end ()
- static const char *const 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: <logo>[,[<delay>[,[<alpha>]]]][;...] */
- 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 ) )
- {
- /* <logo>,<delay>[,<alpha>] type */
- if( p_c2[1] != ',' && p_c2[1] != ';' && p_c2[1] != ' ' )
- p_logo[i].i_delay = atoi( p_c2+1 );
- *p_c2 = ' ';
- if( ( p_c2 = strchr( p_c2+1, ',' ) )
- && ( p_c2 < p_c || !p_c ) && p_c2[1] != ';' && p_c2[1] != ' ' )
- p_logo[i].i_alpha = atoi( p_c2 + 1 );
- }
- else
- {
- /* <logo> type */
- if( p_c ) *p_c = ' ';
- }
- 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 )
- {
- picture_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 )
- return VLC_ENOMEM;
- p_logo_list = p_sys->p_logo_list = malloc( sizeof( logo_list_t ) );
- if( p_logo_list == NULL )
- {
- free( p_sys );
- return VLC_ENOMEM;
- }
- 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" );
- free( p_logo_list->psz_filename );
- free( p_sys );
- return VLC_EGENERIC;
- }
- 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;
- 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 = var_CreateGetIntegerCommand( p_vout, "logo-delay" );
- p_logo_list->i_delay = __MAX( __MIN( p_logo_list->i_delay, 60000 ), 0 );
- p_logo_list->i_repeat = var_CreateGetIntegerCommand( p_vout, "logo-repeat");
- p_logo_list->i_alpha = var_CreateGetIntegerCommand( p_vout,
- "logo-transparency" );
- p_logo_list->i_alpha = __MAX( __MIN( p_logo_list->i_alpha, 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;
- 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_out.video.i_chroma = p_vout->output.i_chroma;
- p_sys->p_blend->fmt_out.video.i_rmask = p_vout->output.i_rmask;
- p_sys->p_blend->fmt_out.video.i_gmask = p_vout->output.i_gmask;
- p_sys->p_blend->fmt_out.video.i_bmask = p_vout->output.i_bmask;
- p_sys->p_blend->fmt_out.video.i_rrshift= p_vout->output.i_rrshift;
- p_sys->p_blend->fmt_out.video.i_rgshift= p_vout->output.i_rgshift;
- p_sys->p_blend->fmt_out.video.i_rbshift= p_vout->output.i_rbshift;
- p_sys->p_blend->fmt_out.video.i_lrshift= p_vout->output.i_lrshift;
- p_sys->p_blend->fmt_out.video.i_lgshift= p_vout->output.i_lgshift;
- p_sys->p_blend->fmt_out.video.i_lbshift= p_vout->output.i_lbshift;
- 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", NULL, false );
- 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_release( 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;
- }
- vout_filter_AllocateDirectBuffers( p_vout, VOUT_MAX_PICTURES );
- vout_filter_AddChild( p_vout, p_sys->p_vout, MouseEvent );
- 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;
- vout_filter_DelChild( p_vout, p_sys->p_vout, MouseEvent );
- vout_CloseAndRelease( p_sys->p_vout );
- vout_filter_ReleaseDirectBuffers( 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_release( 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;
- 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( !vlc_object_alive (p_vout) || p_vout->b_error ) return;
- msleep( VOUT_OUTMEM_SLEEP );
- }
- picture_Copy( p_outpic, p_inpic );
- if( p_pic )
- p_sys->p_blend->pf_video_blend( p_sys->p_blend, 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 );
- }
- /*****************************************************************************
- * 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 = p_data;
- assert( p_this == VLC_OBJECT(p_vout->p_sys->p_vout) );
- VLC_UNUSED(oldval);
- vout_sys_t *p_sys = p_vout->p_sys;
- const int i_delta = newval.i_int - oldval.i_int;
- const int i_bdown = var_GetInteger( p_sys->p_vout, "mouse-button-down" );
- if( (i_bdown & 0x1) == 0 )
- goto forward;
- int i_x, i_y;
- int i_dx = 0;
- int i_dy = 0;
- if( psz_var[6] == 'x' )
- {
- i_y = var_GetInteger( p_sys->p_vout, "mouse-y" );
- i_x = newval.i_int;
- i_dx = i_delta;
- }
- else if( psz_var[6] == 'y' )
- {
- i_y = newval.i_int;
- i_x = var_GetInteger( p_sys->p_vout, "mouse-x" );
- i_dy = i_delta;
- }
- else
- {
- goto forward;
- }
- /* FIXME missing lock */
- if( i_x < (int)p_sys->posx ||
- i_y < (int)p_sys->posy ||
- i_x > (int)(p_sys->posx + p_sys->i_width) ||
- i_y > (int)(p_sys->posy + p_sys->i_height) )
- goto forward;
- p_sys->posx = __MIN( __MAX( p_sys->posx + i_dx, 0 ),
- p_vout->output.i_width - p_sys->i_width );
- p_sys->posy = __MIN( __MAX( p_sys->posy + i_dy, 0 ),
- p_vout->output.i_height - p_sys->i_height );
- return VLC_SUCCESS;
- forward:
- return var_Set( p_vout, psz_var, newval );
- }
- /*****************************************************************************
- * 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 );
- }
- /*****************************************************************************
- * filter_sys_t: logo filter descriptor
- *****************************************************************************/
- struct filter_sys_t
- {
- logo_list_t *p_logo_list;
- int pos, posx, posy;
- bool b_absolute;
- mtime_t i_last_date;
- /* On the fly control variable */
- bool 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 )
- return VLC_ENOMEM;
- p_logo_list = p_sys->p_logo_list = malloc( sizeof( logo_list_t ) );
- if( p_logo_list == NULL )
- {
- 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 = var_CreateGetIntegerCommand( p_filter,
- "logo-transparency");
- p_logo_list->i_alpha = __MAX( __MIN( p_logo_list->i_alpha, 255 ), 0 );
- p_logo_list->i_delay =
- var_CreateGetIntegerCommand( p_filter, "logo-delay" );
- p_logo_list->i_repeat =
- var_CreateGetIntegerCommand( p_filter, "logo-repeat" );
- vlc_mutex_init( &p_logo_list->lock );
- LoadLogoList( p_this, p_logo_list );
- 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 );
- /* Misc init */
- p_filter->pf_sub_filter = Filter;
- p_sys->b_need_update = 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;
- /* 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" );
- vlc_mutex_destroy( &p_sys->p_logo_list->lock );
- FreeLogoList( p_sys->p_logo_list );
- free( p_sys->p_logo_list );
- free( p_sys );
- }
- /*****************************************************************************
- * 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 = filter_NewSubpicture( 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 = true;
- p_sys->b_need_update = 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 = subpicture_region_New( &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;
- }
- /* FIXME the copy is probably not needed anymore */
- picture_Copy( p_region->p_picture, p_pic );
- vlc_mutex_unlock( &p_logo_list->lock );
- /* where to locate the logo: */
- if( p_sys->pos < 0 )
- { /* set to an absolute xy */
- p_region->i_align = OSD_ALIGN_RIGHT | OSD_ALIGN_TOP;
- p_spu->b_absolute = true;
- }
- else
- { /* set to one of the 9 relative locations */
- p_region->i_align = p_sys->pos;
- p_spu->b_absolute = false;
- }
- p_region->i_x = p_sys->posx;
- p_region->i_y = p_sys->posy;
- 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 )
- {
- VLC_UNUSED(oldval);
- filter_sys_t *p_sys = (filter_sys_t *)p_data;
- logo_list_t *p_logo_list = p_sys->p_logo_list;
- if( !strcmp( psz_var, "logo-file" ) )
- {
- 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 );
- }
- else if ( !strcmp( psz_var, "logo-x" ) )
- {
- p_sys->posx = newval.i_int;
- }
- else if ( !strcmp( psz_var, "logo-y" ) )
- {
- p_sys->posy = newval.i_int;
- }
- else if ( !strcmp( psz_var, "logo-position" ) )
- {
- p_sys->pos = newval.i_int;
- }
- else if ( !strcmp( psz_var, "logo-transparency" ) )
- {
- 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 ( !strcmp( psz_var, "logo-repeat" ) )
- {
- 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 = true;
- return VLC_SUCCESS;
- }