dynamicoverlay_commands.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:29k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * dynamicoverlay_commands.c : dynamic overlay plugin commands
- *****************************************************************************
- * Copyright (C) 2008 the VideoLAN team
- * $Id: d847aaf8e4be308f91a9a1cb59b149994e6f1041 $
- *
- * Author: Søren Bøg <avacore@videolan.org>
- * Jean-Paul Saman <jpsaman@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.
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_arrays.h>
- #include <vlc_vout.h>
- #include <vlc_filter.h>
- #include <vlc_osd.h>
- #include <string.h>
- #include <ctype.h>
- #if defined(HAVE_SYS_SHM_H)
- #include <sys/shm.h>
- #endif
- #include "dynamicoverlay.h"
- /*****************************************************************************
- * overlay_t: Overlay descriptor
- *****************************************************************************/
- overlay_t *OverlayCreate( void )
- {
- overlay_t *p_ovl = malloc( sizeof( overlay_t ) );
- if( p_ovl == NULL )
- return NULL;
- memset( p_ovl, 0, sizeof( overlay_t ) );
- p_ovl->i_x = p_ovl->i_y = 0;
- p_ovl->i_alpha = 0xFF;
- p_ovl->b_active = false;
- vout_InitFormat( &p_ovl->format, VLC_FOURCC( ' ',' ',' ',' ') , 0, 0,
- VOUT_ASPECT_FACTOR );
- memcpy( &p_ovl->fontstyle, &default_text_style, sizeof(struct text_style_t) );
- p_ovl->data.p_text = NULL;
- return p_ovl;
- }
- int OverlayDestroy( overlay_t *p_ovl )
- {
- if( p_ovl->data.p_text != NULL )
- free( p_ovl->data.p_text );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Command parsers
- *****************************************************************************/
- static int skip_space( char **psz_command )
- {
- char *psz_temp = *psz_command;
- while( isspace( *psz_temp ) )
- {
- ++psz_temp;
- }
- if( psz_temp == *psz_command )
- {
- return VLC_EGENERIC;
- }
- *psz_command = psz_temp;
- return VLC_SUCCESS;
- }
- static int parse_digit( char **psz_command, int32_t *value )
- {
- char *psz_temp;
- *value = strtol( *psz_command, &psz_temp, 10 );
- if( psz_temp == *psz_command )
- {
- return VLC_EGENERIC;
- }
- *psz_command = psz_temp;
- return VLC_SUCCESS;
- }
- static int parse_char( char **psz_command, char **psz_end,
- int count, char *psz_value )
- {
- if( *psz_end - *psz_command < count )
- {
- return VLC_EGENERIC;
- }
- memcpy( psz_value, *psz_command, count );
- *psz_command += count;
- return VLC_SUCCESS;
- }
- static int parser_DataSharedMem( char *psz_command,
- char *psz_end,
- commandparams_t *p_params )
- {
- /* Parse: 0 128 128 RGBA 9404459 */
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_width ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_height ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isascii( *psz_command ) )
- {
- if( parse_char( &psz_command, &psz_end, 4, (char*)&p_params->fourcc )
- == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_shmid ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int parser_Id( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int parser_None( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_command);
- VLC_UNUSED(psz_end);
- VLC_UNUSED(p_params);
- return VLC_SUCCESS;
- }
- static int parser_SetAlpha( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_alpha ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int parser_SetPosition( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_x ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_y ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int parser_SetTextAlpha( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->fontstyle.i_font_alpha ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int parser_SetTextColor( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- int r = 0, g = 0, b = 0;
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &r ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &g ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &b ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- p_params->fontstyle.i_font_color = (r<<16) | (g<<8) | (b<<0);
- return VLC_SUCCESS;
- }
- static int parser_SetTextSize( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->fontstyle.i_font_size ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int parser_SetVisibility( char *psz_command, char *psz_end,
- commandparams_t *p_params )
- {
- VLC_UNUSED(psz_end);
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- if( parse_digit( &psz_command, &p_params->i_id ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- }
- skip_space( &psz_command );
- if( isdigit( *psz_command ) )
- {
- int32_t i_vis = 0;
- if( parse_digit( &psz_command, &i_vis ) == VLC_EGENERIC )
- return VLC_EGENERIC;
- p_params->b_visible = (i_vis == 1) ? true : false;
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Command unparser functions
- *****************************************************************************/
- static int unparse_default( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- VLC_UNUSED(p_results);
- VLC_UNUSED(p_output);
- return VLC_SUCCESS;
- }
- static int unparse_GenImage( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", p_results->i_id );
- if( ret != VLC_SUCCESS )
- return ret;
- return VLC_SUCCESS;
- }
- static int unparse_GetAlpha( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", p_results->i_alpha );
- if( ret != VLC_SUCCESS )
- return ret;
- return VLC_SUCCESS;
- }
- static int unparse_GetPosition( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", p_results->i_x );
- if( ret != VLC_SUCCESS )
- return ret;
- ret = BufferPrintf( p_output, " %d", p_results->i_y );
- if( ret != VLC_SUCCESS )
- return ret;
- return VLC_SUCCESS;
- }
- static int unparse_GetTextAlpha( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", p_results->fontstyle.i_font_alpha );
- if( ret != VLC_SUCCESS )
- return ret;
- return VLC_SUCCESS;
- }
- static int unparse_GetTextColor( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", (p_results->fontstyle.i_font_color & 0xff0000)>>16 );
- if( ret != VLC_SUCCESS )
- return ret;
- ret = BufferPrintf( p_output, " %d", (p_results->fontstyle.i_font_color & 0x00ff00)>>8 );
- if( ret != VLC_SUCCESS )
- return ret;
- ret = BufferPrintf( p_output, " %d", (p_results->fontstyle.i_font_color & 0x0000ff) );
- if( ret != VLC_SUCCESS )
- return ret;
- return VLC_SUCCESS;
- }
- static int unparse_GetTextSize( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", p_results->fontstyle.i_font_size );
- if( ret != VLC_SUCCESS )
- return ret;
- return VLC_SUCCESS;
- }
- static int unparse_GetVisibility( const commandparams_t *p_results,
- buffer_t *p_output )
- {
- int ret = BufferPrintf( p_output, " %d", (p_results->b_visible ? 1 : 0) );
- if( ret != VLC_SUCCESS ) {
- return ret;
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Command functions
- *****************************************************************************/
- static int exec_DataSharedMem( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- #if defined(HAVE_SYS_SHM_H)
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- struct shmid_ds shminfo;
- overlay_t *p_ovl;
- size_t i_size;
- VLC_UNUSED(p_results);
- p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- {
- msg_Err( p_filter, "Invalid overlay: %d", p_params->i_id );
- return VLC_EGENERIC;
- }
- if( shmctl( p_params->i_shmid, IPC_STAT, &shminfo ) == -1 )
- {
- msg_Err( p_filter, "Unable to access shared memory" );
- return VLC_EGENERIC;
- }
- i_size = shminfo.shm_segsz;
- if( p_params->fourcc == VLC_FOURCC('T','E','X','T') )
- {
- char *p_data;
- if( (p_params->i_height != 1) || (p_params->i_width < 1) )
- {
- msg_Err( p_filter,
- "Invalid width and/or height. when specifing text height "
- "must be 1 and width the number of bytes in the string, "
- "including the null terminator" );
- return VLC_EGENERIC;
- }
- if( (size_t)p_params->i_width > i_size )
- {
- msg_Err( p_filter,
- "Insufficient data in shared memory. need %d, got %zu",
- p_params->i_width, i_size );
- return VLC_EGENERIC;
- }
- p_ovl->data.p_text = malloc( p_params->i_width );
- if( p_ovl->data.p_text == NULL )
- {
- msg_Err( p_filter, "Unable to allocate string storage" );
- return VLC_ENOMEM;
- }
- vout_InitFormat( &p_ovl->format, VLC_FOURCC('T','E','X','T'),
- 0, 0, 0 );
- p_data = shmat( p_params->i_shmid, NULL, SHM_RDONLY );
- if( p_data == NULL )
- {
- msg_Err( p_filter, "Unable to attach to shared memory" );
- free( p_ovl->data.p_text );
- p_ovl->data.p_text = NULL;
- return VLC_ENOMEM;
- }
- memcpy( p_ovl->data.p_text, p_data, p_params->i_width );
- shmdt( p_data );
- }
- else
- {
- uint8_t *p_data, *p_in;
- size_t i_neededsize = 0;
- p_ovl->data.p_pic = malloc( sizeof( picture_t ) );
- if( p_ovl->data.p_pic == NULL )
- return VLC_ENOMEM;
- vout_InitFormat( &p_ovl->format, p_params->fourcc,
- p_params->i_width, p_params->i_height,
- VOUT_ASPECT_FACTOR );
- if( vout_AllocatePicture( p_filter, p_ovl->data.p_pic,
- p_ovl->format.i_chroma, p_params->i_width,
- p_params->i_height, p_ovl->format.i_aspect ) )
- {
- msg_Err( p_filter, "Unable to allocate picture" );
- free( p_ovl->data.p_pic );
- p_ovl->data.p_pic = NULL;
- return VLC_ENOMEM;
- }
- for( size_t i_plane = 0; i_plane < (size_t)p_ovl->data.p_pic->i_planes;
- ++i_plane )
- {
- i_neededsize += p_ovl->data.p_pic->p[i_plane].i_visible_lines *
- p_ovl->data.p_pic->p[i_plane].i_visible_pitch;
- }
- if( i_neededsize > i_size )
- {
- msg_Err( p_filter,
- "Insufficient data in shared memory. need %zu, got %zu",
- i_neededsize, i_size );
- picture_Release( p_ovl->data.p_pic );
- free( p_ovl->data.p_pic );
- p_ovl->data.p_pic = NULL;
- return VLC_EGENERIC;
- }
- p_data = shmat( p_params->i_shmid, NULL, SHM_RDONLY );
- if( p_data == NULL )
- {
- msg_Err( p_filter, "Unable to attach to shared memory" );
- picture_Release( p_ovl->data.p_pic );
- free( p_ovl->data.p_pic );
- p_ovl->data.p_pic = NULL;
- return VLC_ENOMEM;
- }
- p_in = p_data;
- for( size_t i_plane = 0; i_plane < (size_t)p_ovl->data.p_pic->i_planes;
- ++i_plane )
- {
- uint8_t *p_out = p_ovl->data.p_pic->p[i_plane].p_pixels;
- for( size_t i_line = 0;
- i_line < (size_t)p_ovl->data.p_pic->p[i_plane].i_visible_lines;
- ++i_line )
- {
- vlc_memcpy( p_out, p_in,
- p_ovl->data.p_pic->p[i_plane].i_visible_pitch );
- p_out += p_ovl->data.p_pic->p[i_plane].i_pitch;
- p_in += p_ovl->data.p_pic->p[i_plane].i_visible_pitch;
- }
- }
- shmdt( p_data );
- }
- p_sys->b_updated = p_ovl->b_active;
- return VLC_SUCCESS;
- #else
- VLC_UNUSED(p_params);
- VLC_UNUSED(p_results);
- msg_Err( p_filter, "system doesn't support shared memory" );
- return VLC_EGENERIC;
- #endif
- }
- static int exec_DeleteImage( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- p_sys->b_updated = true;
- return ListRemove( &p_sys->overlays, p_params->i_id );
- }
- static int exec_EndAtomic( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_params);
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- QueueTransfer( &p_sys->pending, &p_sys->atomic );
- p_sys->b_atomic = false;
- return VLC_SUCCESS;
- }
- static int exec_GenImage( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_params);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = OverlayCreate();
- if( p_ovl == NULL )
- return VLC_ENOMEM;
- ssize_t i_idx = ListAdd( &p_sys->overlays, p_ovl );
- if( i_idx < 0 )
- return i_idx;
- p_results->i_id = i_idx;
- return VLC_SUCCESS;
- }
- static int exec_GetAlpha( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_results->i_alpha = p_ovl->i_alpha;
- return VLC_SUCCESS;
- }
- static int exec_GetPosition( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_results->i_x = p_ovl->i_x;
- p_results->i_y = p_ovl->i_y;
- return VLC_SUCCESS;
- }
- static int exec_GetTextAlpha( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_results->fontstyle.i_font_alpha = p_ovl->fontstyle.i_font_alpha;
- return VLC_SUCCESS;
- }
- static int exec_GetTextColor( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_results->fontstyle.i_font_color = p_ovl->fontstyle.i_font_color;
- return VLC_SUCCESS;
- }
- static int exec_GetTextSize( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_results->fontstyle.i_font_size = p_ovl->fontstyle.i_font_size;
- return VLC_SUCCESS;
- }
- static int exec_GetVisibility( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_results->b_visible = ( p_ovl->b_active == true ) ? 1 : 0;
- return VLC_SUCCESS;
- }
- static int exec_SetAlpha( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_ovl->i_alpha = p_params->i_alpha;
- p_sys->b_updated = p_ovl->b_active;
- return VLC_SUCCESS;
- }
- static int exec_SetPosition( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_ovl->i_x = p_params->i_x;
- p_ovl->i_y = p_params->i_y;
- p_sys->b_updated = p_ovl->b_active;
- return VLC_SUCCESS;
- }
- static int exec_SetTextAlpha( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_ovl->fontstyle.i_font_alpha = p_params->fontstyle.i_font_alpha;
- p_sys->b_updated = p_ovl->b_active;
- return VLC_SUCCESS;
- }
- static int exec_SetTextColor( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_ovl->fontstyle.i_font_color = p_params->fontstyle.i_font_color;
- p_sys->b_updated = p_ovl->b_active;
- return VLC_SUCCESS;
- }
- static int exec_SetTextSize( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_ovl->fontstyle.i_font_size = p_params->fontstyle.i_font_size;
- p_sys->b_updated = p_ovl->b_active;
- return VLC_SUCCESS;
- }
- static int exec_SetVisibility( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- VLC_UNUSED(p_results);
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- overlay_t *p_ovl = ListGet( &p_sys->overlays, p_params->i_id );
- if( p_ovl == NULL )
- return VLC_EGENERIC;
- p_ovl->b_active = p_params->b_visible;// ? false : true;
- p_sys->b_updated = true;
- return VLC_SUCCESS;
- }
- static int exec_StartAtomic( filter_t *p_filter,
- const commandparams_t *p_params,
- commandparams_t *p_results )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- VLC_UNUSED(p_params);
- VLC_UNUSED(p_results);
- p_sys->b_atomic = true;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Command functions
- *****************************************************************************/
- static const commanddesc_t p_commands[] =
- {
- { .psz_command = "DataSharedMem",
- .b_atomic = true,
- .pf_parser = parser_DataSharedMem,
- .pf_execute = exec_DataSharedMem,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "DeleteImage",
- .b_atomic = true,
- .pf_parser = parser_Id,
- .pf_execute = exec_DeleteImage,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "EndAtomic",
- .b_atomic = false,
- .pf_parser = parser_None,
- .pf_execute = exec_EndAtomic,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "GenImage",
- .b_atomic = false,
- .pf_parser = parser_None,
- .pf_execute = exec_GenImage,
- .pf_unparse = unparse_GenImage,
- },
- { .psz_command = "GetAlpha",
- .b_atomic = false,
- .pf_parser = parser_Id,
- .pf_execute = exec_GetAlpha,
- .pf_unparse = unparse_GetAlpha,
- },
- { .psz_command = "GetPosition",
- .b_atomic = false,
- .pf_parser = parser_Id,
- .pf_execute = exec_GetPosition,
- .pf_unparse = unparse_GetPosition,
- },
- { .psz_command = "GetTextAlpha",
- .b_atomic = false,
- .pf_parser = parser_Id,
- .pf_execute = exec_GetTextAlpha,
- .pf_unparse = unparse_GetTextAlpha,
- },
- { .psz_command = "GetTextColor",
- .b_atomic = false,
- .pf_parser = parser_Id,
- .pf_execute = exec_GetTextColor,
- .pf_unparse = unparse_GetTextColor,
- },
- { .psz_command = "GetTextSize",
- .b_atomic = true,
- .pf_parser = parser_Id,
- .pf_execute = exec_GetTextSize,
- .pf_unparse = unparse_GetTextSize,
- },
- { .psz_command = "GetVisibility",
- .b_atomic = false,
- .pf_parser = parser_Id,
- .pf_execute = exec_GetVisibility,
- .pf_unparse = unparse_GetVisibility,
- },
- { .psz_command = "SetAlpha",
- .b_atomic = true,
- .pf_parser = parser_SetAlpha,
- .pf_execute = exec_SetAlpha,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "SetPosition",
- .b_atomic = true,
- .pf_parser = parser_SetPosition,
- .pf_execute = exec_SetPosition,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "SetTextAlpha",
- .b_atomic = true,
- .pf_parser = parser_SetTextAlpha,
- .pf_execute = exec_SetTextAlpha,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "SetTextColor",
- .b_atomic = true,
- .pf_parser = parser_SetTextColor,
- .pf_execute = exec_SetTextColor,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "SetTextSize",
- .b_atomic = true,
- .pf_parser = parser_SetTextSize,
- .pf_execute = exec_SetTextSize,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "SetVisibility",
- .b_atomic = true,
- .pf_parser = parser_SetVisibility,
- .pf_execute = exec_SetVisibility,
- .pf_unparse = unparse_default,
- },
- { .psz_command = "StartAtomic",
- .b_atomic = true,
- .pf_parser = parser_None,
- .pf_execute = exec_StartAtomic,
- .pf_unparse = unparse_default,
- }
- };
- void RegisterCommand( filter_t *p_filter )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- size_t i_index = 0;
- p_sys->i_commands = ARRAY_SIZE(p_commands);
- p_sys->pp_commands = (commanddesc_t **) calloc( p_sys->i_commands, sizeof(commanddesc_t*) );
- if( !p_sys->pp_commands ) return;
- for( i_index = 0; i_index < p_sys->i_commands; i_index ++ )
- {
- p_sys->pp_commands[i_index] = (commanddesc_t *) malloc( sizeof(commanddesc_t) );
- if( !p_sys->pp_commands[i_index] ) return;
- p_sys->pp_commands[i_index]->psz_command = strdup( p_commands[i_index].psz_command );
- p_sys->pp_commands[i_index]->b_atomic = p_commands[i_index].b_atomic;
- p_sys->pp_commands[i_index]->pf_parser = p_commands[i_index].pf_parser;
- p_sys->pp_commands[i_index]->pf_execute = p_commands[i_index].pf_execute;
- p_sys->pp_commands[i_index]->pf_unparse = p_commands[i_index].pf_unparse;
- }
- msg_Dbg( p_filter, "%zu commands are available", p_sys->i_commands );
- for( size_t i_index = 0; i_index < p_sys->i_commands; i_index++ )
- msg_Dbg( p_filter, " %s", p_sys->pp_commands[i_index]->psz_command );
- }
- void UnregisterCommand( filter_t *p_filter )
- {
- filter_sys_t *p_sys = (filter_sys_t*) p_filter->p_sys;
- size_t i_index = 0;
- for( i_index = 0; i_index < p_sys->i_commands; i_index++ )
- {
- free( p_sys->pp_commands[i_index]->psz_command );
- free( p_sys->pp_commands[i_index] );
- }
- free( p_sys->pp_commands );
- p_sys->pp_commands = NULL;
- p_sys->i_commands = 0;
- }