/***************************************************************************** * vout_intf.c : video output interface ***************************************************************************** * Copyright (C) 2000-2007 the VideoLAN team * * Authors: Gildas Bazin <gbazin@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 <stdio.h> #include <stdlib.h> /* free() */ #include <sys/types.h> /* opendir() */ #include <sys/stat.h> #include <dirent.h> /* opendir() */ #include <assert.h> #include <time.h> /* strftime */ #include <vlc_interface.h> #include <vlc_block.h> #include <vlc_playlist.h> #include <vlc_vout.h> #include <vlc_window.h> #include <vlc_image.h> #include <vlc_osd.h> #include <vlc_charset.h> #include <vlc_strings.h> #include <vlc_charset.h> #include "../libvlc.h" #include "vout_internal.h" /***************************************************************************** * Local prototypes *****************************************************************************/ static void InitWindowSize( vout_thread_t *, unsigned *, unsigned * ); /* Object variables callbacks */ static int ZoomCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int CropCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int AspectCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int ScalingCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int OnTopCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int FullscreenCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int SnapshotCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int TitleShowCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int TitleTimeoutCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); static int TitlePositionCallback( vlc_object_t *, char const *, vlc_value_t, vlc_value_t, void * ); /** * Creates a video output window. * On Unix systems, this is an X11 drawable (handle). * On Windows, this is a Win32 window (handle). * Video output plugins are supposed to called this function and display the * video within the resulting window, while in windowed mode. * * @param p_vout video output thread to create a window for * @param psz_cap VLC module capability (window system type) * @param pi_x_hint pointer to store the recommended horizontal position [OUT] * @param pi_y_hint pointer to store the recommended vertical position [OUT] * @param pi_width_hint pointer to store the recommended width [OUT] * @param pi_height_hint pointer to store the recommended height [OUT] * * @return a vout_window_t object, or NULL in case of failure. * The window is released with vout_ReleaseWindow(). */ vout_window_t *vout_RequestWindow( vout_thread_t *p_vout, const char *psz_cap, int *pi_x_hint, int *pi_y_hint, unsigned int *pi_width_hint, unsigned int *pi_height_hint ) { /* Get requested coordinates */ *pi_x_hint = var_GetInteger( p_vout, "video-x" ); *pi_y_hint = var_GetInteger( p_vout, "video-y" ); *pi_width_hint = p_vout->i_window_width; *pi_height_hint = p_vout->i_window_height; vout_window_t *wnd = vlc_custom_create (VLC_OBJECT(p_vout), sizeof (*wnd), VLC_OBJECT_GENERIC, "window"); if (wnd == NULL) return NULL; wnd->vout = p_vout; wnd->width = *pi_width_hint; wnd->height = *pi_height_hint; wnd->pos_x = *pi_x_hint; wnd->pos_y = *pi_y_hint; vlc_object_attach (wnd, p_vout); wnd->module = module_need (wnd, psz_cap, NULL, false); if (wnd->module == NULL) { msg_Dbg (wnd, "no \"%s\" window provider available", psz_cap); vlc_object_release (wnd); return NULL; } *pi_width_hint = wnd->width; *pi_height_hint = wnd->height; *pi_x_hint = wnd->pos_x; *pi_y_hint = wnd->pos_y; return wnd; } /** * Releases a window handle obtained with vout_RequestWindow(). * @param p_vout video output thread that allocated the window * (if this is NULL; this fnction is a no-op). */ void vout_ReleaseWindow( vout_window_t *wnd ) { if (wnd == NULL) return; assert (wnd->module); module_unneed (wnd, wnd->module); vlc_object_release (wnd); } int vout_ControlWindow( vout_window_t *wnd, int i_query, va_list args ) { if (wnd == NULL) return VLC_EGENERIC; assert (wnd->control); return wnd->control (wnd, i_query, args); } /***************************************************************************** * vout_IntfInit: called during the vout creation to initialise misc things. *****************************************************************************/ static const struct { double f_value; const char *psz_label; } p_zoom_values[] = { { 0.25, N_("1:4 Quarter") }, { 0.5, N_("1:2 Half") }, { 1, N_("1:1 Original") }, { 2, N_("2:1 Double") }, { 0, NULL } }; static const struct { const char *psz_value; const char *psz_label; } p_crop_values[] = { { "", N_("Default") }, { "16:10", "16:10" }, { "16:9", "16:9" }, { "185:100", "1.85:1" }, { "221:100", "2.21:1" }, { "235:100", "2.35:1" }, { "239:100", "2.39:1" }, { "5:3", "5:3" }, { "4:3", "4:3" }, { "5:4", "5:4" }, { "1:1", "1:1" }, { NULL, NULL } }; static const struct { const char *psz_value; const char *psz_label; } p_aspect_ratio_values[] = { { "", N_("Default") }, { "1:1", "1:1" }, { "4:3", "4:3" }, { "16:9", "16:9" }, { "16:10", "16:10" }, { "221:100", "2.21:1" }, { "5:4", "5:4" }, { NULL, NULL } }; static void AddCustomRatios( vout_thread_t *p_vout, const char *psz_var, char *psz_list ) { if( psz_list && *psz_list ) { char *psz_cur = psz_list; char *psz_next; while( psz_cur && *psz_cur ) { vlc_value_t val, text; psz_next = strchr( psz_cur, ',' ); if( psz_next ) { *psz_next = '\0'; psz_next++; } val.psz_string = psz_cur; text.psz_string = psz_cur; var_Change( p_vout, psz_var, VLC_VAR_ADDCHOICE, &val, &text); psz_cur = psz_next; } } } void vout_IntfInit( vout_thread_t *p_vout ) { vlc_value_t val, text, old_val; bool b_force_par = false; char *psz_buf; int i; /* Create a few object variables we'll need later on */ var_Create( p_vout, "snapshot-path", VLC_VAR_STRING | VLC_VAR_DOINHERIT ); var_Create( p_vout, "snapshot-prefix", VLC_VAR_STRING | VLC_VAR_DOINHERIT ); var_Create( p_vout, "snapshot-format", VLC_VAR_STRING | VLC_VAR_DOINHERIT ); var_Create( p_vout, "snapshot-preview", VLC_VAR_BOOL | VLC_VAR_DOINHERIT ); var_Create( p_vout, "snapshot-sequential", VLC_VAR_BOOL | VLC_VAR_DOINHERIT ); var_Create( p_vout, "snapshot-num", VLC_VAR_INTEGER ); var_SetInteger( p_vout, "snapshot-num", 1 ); var_Create( p_vout, "snapshot-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); var_Create( p_vout, "snapshot-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); p_vout->i_alignment = var_CreateGetInteger( p_vout, "align" ); var_Create( p_vout, "video-x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); var_Create( p_vout, "video-y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); var_Create( p_vout, "mouse-hide-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); p_vout->p->b_title_show = var_CreateGetBool( p_vout, "video-title-show" ); p_vout->p->i_title_timeout = (mtime_t)var_CreateGetInteger( p_vout, "video-title-timeout" ); p_vout->p->i_title_position = var_CreateGetInteger( p_vout, "video-title-position" ); p_vout->p->psz_title = NULL; var_AddCallback( p_vout, "video-title-show", TitleShowCallback, NULL ); var_AddCallback( p_vout, "video-title-timeout", TitleTimeoutCallback, NULL ); var_AddCallback( p_vout, "video-title-position", TitlePositionCallback, NULL ); /* Zoom object var */ var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_ISCOMMAND | VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT ); text.psz_string = _("Zoom"); var_Change( p_vout, "zoom", VLC_VAR_SETTEXT, &text, NULL ); var_Get( p_vout, "zoom", &old_val ); for( i = 0; p_zoom_values[i].f_value; i++ ) { if( old_val.f_float == p_zoom_values[i].f_value ) var_Change( p_vout, "zoom", VLC_VAR_DELCHOICE, &old_val, NULL ); val.f_float = p_zoom_values[i].f_value; text.psz_string = _( p_zoom_values[i].psz_label ); var_Change( p_vout, "zoom", VLC_VAR_ADDCHOICE, &val, &text ); } var_Set( p_vout, "zoom", old_val ); /* Is this really needed? */ var_AddCallback( p_vout, "zoom", ZoomCallback, NULL ); /* Crop offset vars */ var_Create( p_vout, "crop-left", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND ); var_Create( p_vout, "crop-top", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND ); var_Create( p_vout, "crop-right", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND ); var_Create( p_vout, "crop-bottom", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND ); var_AddCallback( p_vout, "crop-left", CropCallback, NULL ); var_AddCallback( p_vout, "crop-top", CropCallback, NULL ); var_AddCallback( p_vout, "crop-right", CropCallback, NULL ); var_AddCallback( p_vout, "crop-bottom", CropCallback, NULL ); /* Crop object var */ var_Create( p_vout, "crop", VLC_VAR_STRING | VLC_VAR_ISCOMMAND | VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT ); text.psz_string = _("Crop"); var_Change( p_vout, "crop", VLC_VAR_SETTEXT, &text, NULL ); val.psz_string = (char*)""; var_Change( p_vout, "crop", VLC_VAR_DELCHOICE, &val, 0 ); for( i = 0; p_crop_values[i].psz_value; i++ ) { val.psz_string = (char*)p_crop_values[i].psz_value; text.psz_string = _( p_crop_values[i].psz_label ); var_Change( p_vout, "crop", VLC_VAR_ADDCHOICE, &val, &text ); } /* update triggered every time the vout's crop parameters are changed */ var_Create( p_vout, "crop-update", VLC_VAR_VOID ); /* Add custom crop ratios */ psz_buf = config_GetPsz( p_vout, "custom-crop-ratios" ); AddCustomRatios( p_vout, "crop", psz_buf ); free( psz_buf ); var_AddCallback( p_vout, "crop", CropCallback, NULL ); var_Get( p_vout, "crop", &old_val ); if( old_val.psz_string && *old_val.psz_string ) var_TriggerCallback( p_vout, "crop" ); free( old_val.psz_string ); /* Monitor pixel aspect-ratio */ var_Create( p_vout, "monitor-par", VLC_VAR_STRING | VLC_VAR_DOINHERIT ); var_Get( p_vout, "monitor-par", &val ); if( val.psz_string && *val.psz_string ) { char *psz_parser = strchr( val.psz_string, ':' ); unsigned int i_aspect_num = 0, i_aspect_den = 0; float i_aspect = 0; if( psz_parser ) { i_aspect_num = strtol( val.psz_string, 0, 10 ); i_aspect_den = strtol( ++psz_parser, 0, 10 ); } else { i_aspect = atof( val.psz_string ); vlc_ureduce( &i_aspect_num, &i_aspect_den, i_aspect *VOUT_ASPECT_FACTOR, VOUT_ASPECT_FACTOR, 0 ); } if( !i_aspect_num || !i_aspect_den ) i_aspect_num = i_aspect_den = 1; p_vout->p->i_par_num = i_aspect_num; p_vout->p->i_par_den = i_aspect_den; vlc_ureduce( &p_vout->p->i_par_num, &p_vout->p->i_par_den, p_vout->p->i_par_num, p_vout->p->i_par_den, 0 ); msg_Dbg( p_vout, "overriding monitor pixel aspect-ratio: %i:%i", p_vout->p->i_par_num, p_vout->p->i_par_den ); b_force_par = true; } free( val.psz_string ); /* Aspect-ratio object var */ var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_ISCOMMAND | VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT ); text.psz_string = _("Aspect-ratio"); var_Change( p_vout, "aspect-ratio", VLC_VAR_SETTEXT, &text, NULL ); val.psz_string = (char*)""; var_Change( p_vout, "aspect-ratio", VLC_VAR_DELCHOICE, &val, 0 ); for( i = 0; p_aspect_ratio_values[i].psz_value; i++ ) { val.psz_string = (char*)p_aspect_ratio_values[i].psz_value; text.psz_string = _( p_aspect_ratio_values[i].psz_label ); var_Change( p_vout, "aspect-ratio", VLC_VAR_ADDCHOICE, &val, &text ); } /* Add custom aspect ratios */ psz_buf = config_GetPsz( p_vout, "custom-aspect-ratios" ); AddCustomRatios( p_vout, "aspect-ratio", psz_buf ); free( psz_buf ); var_AddCallback( p_vout, "aspect-ratio", AspectCallback, NULL ); var_Get( p_vout, "aspect-ratio", &old_val ); if( (old_val.psz_string && *old_val.psz_string) || b_force_par ) var_TriggerCallback( p_vout, "aspect-ratio" ); free( old_val.psz_string ); /* Add variables to manage scaling video */ var_Create( p_vout, "autoscale", VLC_VAR_BOOL | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND ); text.psz_string = _("Autoscale video"); var_Change( p_vout, "autoscale", VLC_VAR_SETTEXT, &text, NULL ); var_AddCallback( p_vout, "autoscale", ScalingCallback, NULL ); p_vout->b_autoscale = var_GetBool( p_vout, "autoscale" ); var_Create( p_vout, "scale", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND ); text.psz_string = _("Scale factor"); var_Change( p_vout, "scale", VLC_VAR_SETTEXT, &text, NULL ); var_AddCallback( p_vout, "scale", ScalingCallback, NULL ); p_vout->i_zoom = (int)( ZOOM_FP_FACTOR * var_GetFloat( p_vout, "scale" ) ); /* Initialize the dimensions of the video window */ InitWindowSize( p_vout, &p_vout->i_window_width, &p_vout->i_window_height ); /* Add a variable to indicate if the window should be on top of others */ var_Create( p_vout, "video-on-top", VLC_VAR_BOOL | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND ); text.psz_string = _("Always on top"); var_Change( p_vout, "video-on-top", VLC_VAR_SETTEXT, &text, NULL ); var_AddCallback( p_vout, "video-on-top", OnTopCallback, NULL ); /* Add a variable to indicate whether we want window decoration or not */ var_Create( p_vout, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT ); /* Add a fullscreen variable */ if( var_CreateGetBoolCommand( p_vout, "fullscreen" ) ) { /* user requested fullscreen */ p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE; } text.psz_string = _("Fullscreen"); var_Change( p_vout, "fullscreen", VLC_VAR_SETTEXT, &text, NULL ); var_AddCallback( p_vout, "fullscreen", FullscreenCallback, NULL ); /* Add a snapshot variable */ var_Create( p_vout, "video-snapshot", VLC_VAR_VOID | VLC_VAR_ISCOMMAND ); text.psz_string = _("Snapshot"); var_Change( p_vout, "video-snapshot", VLC_VAR_SETTEXT, &text, NULL ); var_AddCallback( p_vout, "video-snapshot", SnapshotCallback, NULL ); /* Mouse coordinates */ var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER ); var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER ); var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER ); var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL ); var_Create( p_vout, "mouse-clicked", VLC_VAR_BOOL ); var_Create( p_vout, "intf-change", VLC_VAR_BOOL ); var_SetBool( p_vout, "intf-change", true ); } /***************************************************************************** * vout_Snapshot: generates a snapshot. *****************************************************************************/ /** * This function will inject a subpicture into the vout with the provided * picture */ static int VoutSnapshotPip( vout_thread_t *p_vout, picture_t *p_pic ) { video_format_t fmt_in = p_pic->format; video_format_t fmt_out; picture_t *p_pip; subpicture_t *p_subpic; /* */ memset( &fmt_out, 0, sizeof(fmt_out) ); fmt_out = fmt_in; fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A'); /* */ image_handler_t *p_image = image_HandlerCreate( p_vout ); if( !p_image ) return VLC_EGENERIC; p_pip = image_Convert( p_image, p_pic, &fmt_in, &fmt_out ); image_HandlerDelete( p_image ); if( !p_pip ) return VLC_EGENERIC; p_subpic = subpicture_New(); if( !p_subpic ) { picture_Release( p_pip ); return VLC_EGENERIC; } p_subpic->i_channel = 0; p_subpic->i_start = mdate(); p_subpic->i_stop = mdate() + 4000000; p_subpic->b_ephemer = true; p_subpic->b_fade = true; p_subpic->i_original_picture_width = fmt_out.i_width * 4; p_subpic->i_original_picture_height = fmt_out.i_height * 4; fmt_out.i_aspect = 0; fmt_out.i_sar_num = fmt_out.i_sar_den = 0; p_subpic->p_region = subpicture_region_New( &fmt_out ); if( p_subpic->p_region ) { picture_Release( p_subpic->p_region->p_picture ); p_subpic->p_region->p_picture = p_pip; } else { picture_Release( p_pip ); } spu_DisplaySubpicture( p_vout->p_spu, p_subpic ); return VLC_SUCCESS; } /** * This function will return the default directory used for snapshots */ static char *VoutSnapshotGetDefaultDirectory( void ) { char *psz_path = NULL; #if defined(__APPLE__) || defined(SYS_BEOS) if( asprintf( &psz_path, "%s/Desktop", config_GetHomeDir() ) == -1 ) psz_path = NULL; #elif defined(WIN32) && !defined(UNDER_CE) /* Get the My Pictures folder path */ char *p_mypicturesdir = NULL; typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD, LPWSTR ); #ifndef CSIDL_FLAG_CREATE # define CSIDL_FLAG_CREATE 0x8000 #endif #ifndef CSIDL_MYPICTURES # define CSIDL_MYPICTURES 0x27 #endif #ifndef SHGFP_TYPE_CURRENT # define SHGFP_TYPE_CURRENT 0 #endif HINSTANCE shfolder_dll; SHGETFOLDERPATH SHGetFolderPath ; /* load the shfolder dll to retrieve SHGetFolderPath */ if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL ) { wchar_t wdir[PATH_MAX]; SHGetFolderPath = (void *)GetProcAddress( shfolder_dll, _T("SHGetFolderPathW") ); if ((SHGetFolderPath != NULL ) && SUCCEEDED (SHGetFolderPath (NULL, CSIDL_MYPICTURES | CSIDL_FLAG_CREATE, NULL, SHGFP_TYPE_CURRENT, wdir))) p_mypicturesdir = FromWide (wdir); FreeLibrary( shfolder_dll ); } if( p_mypicturesdir == NULL ) psz_path = strdup( config_GetHomeDir() ); else psz_path = p_mypicturesdir; #else /* XXX: This saves in the data directory. Shouldn't we try saving * to psz_homedir/Desktop or something nicer ? */ char *psz_datadir = config_GetUserDataDir(); if( psz_datadir ) { if( asprintf( &psz_path, "%s", psz_datadir ) == -1 ) psz_path = NULL; free( psz_datadir ); } #endif return psz_path; } /** * This function will save a video snapshot to a file */ static int VoutWriteSnapshot( vout_thread_t *p_vout, char **ppsz_filename, const block_t *p_image, const char *psz_path, const char *psz_format, const char *psz_prefix_fmt ) { /* */ char *psz_filename; DIR *p_path = utf8_opendir( psz_path ); if( p_path != NULL ) { /* The use specified a directory path */ closedir( p_path ); /* */ char *psz_prefix = NULL; if( psz_prefix_fmt ) psz_prefix = str_format( p_vout, psz_prefix_fmt ); if( !psz_prefix ) { psz_prefix = strdup( "vlcsnap-" ); if( !psz_prefix ) goto error; } if( var_GetBool( p_vout, "snapshot-sequential" ) ) { int i_num = var_GetInteger( p_vout, "snapshot-num" ); for( ; ; i_num++ ) { struct stat st; if( asprintf( &psz_filename, "%s" DIR_SEP "%s%05d.%s", psz_path, psz_prefix, i_num++, psz_format ) < 0 ) { free( psz_prefix ); goto error; } if( utf8_stat( psz_filename, &st ) ) break; free( psz_filename ); } var_SetInteger( p_vout, "snapshot-num", i_num ); } else { struct tm curtime; time_t lcurtime = time( NULL ) ; if( !localtime_r( &lcurtime, &curtime ) ) { const unsigned int i_id = (p_image->i_pts / 100000) & 0xFFFFFF; msg_Warn( p_vout, "failed to get current time. Falling back to legacy snapshot naming" ); if( asprintf( &psz_filename, "%s" DIR_SEP "%s%u.%s", psz_path, psz_prefix, i_id, psz_format ) < 0 ) psz_filename = NULL; } else { /* suffix with the last decimal digit in 10s of seconds resolution * FIXME gni ? */ const int i_id = (p_image->i_pts / (100*1000)) & 0xFF; char psz_curtime[128]; if( !strftime( psz_curtime, sizeof(psz_curtime), "%Y-%m-%d-%Hh%Mm%Ss", &curtime ) ) strcpy( psz_curtime, "error" ); if( asprintf( &psz_filename, "%s" DIR_SEP "%s%s%1u.%s", psz_path, psz_prefix, psz_curtime, i_id, psz_format ) < 0 ) psz_filename = NULL; } } free( psz_prefix ); } else { /* The user specified a full path name (including file name) */ psz_filename = str_format( p_vout, psz_path ); path_sanitize( psz_filename ); } if( !psz_filename ) goto error; /* Save the snapshot */ FILE *p_file = utf8_fopen( psz_filename, "wb" ); if( !p_file ) { msg_Err( p_vout, "Failed to open '%s'", psz_filename ); free( psz_filename ); goto error; } if( fwrite( p_image->p_buffer, p_image->i_buffer, 1, p_file ) != 1 ) { msg_Err( p_vout, "Failed to write to '%s'", psz_filename ); fclose( p_file ); free( psz_filename ); goto error; } fclose( p_file ); /* */ if( ppsz_filename ) *ppsz_filename = psz_filename; else free( psz_filename ); return VLC_SUCCESS; error: msg_Err( p_vout, "could not save snapshot" ); return VLC_EGENERIC; } /** * This function will display the name and a PIP of the provided snapshot */ static void VoutOsdSnapshot( vout_thread_t *p_vout, picture_t *p_pic, const char *psz_filename ) { msg_Dbg( p_vout, "snapshot taken (%s)", psz_filename ); vout_OSDMessage( VLC_OBJECT( p_vout ), DEFAULT_CHAN, "%s", psz_filename ); if( var_GetBool( p_vout, "snapshot-preview" ) ) { if( VoutSnapshotPip( p_vout, p_pic ) ) msg_Warn( p_vout, "Failed to display snapshot" ); } } /* */ int vout_GetSnapshot( vout_thread_t *p_vout, block_t **pp_image, picture_t **pp_picture, video_format_t *p_fmt, const char *psz_format, mtime_t i_timeout ) { vout_thread_sys_t *p_sys = p_vout->p; vlc_mutex_lock( &p_sys->snapshot.lock ); p_sys->snapshot.i_request++; const mtime_t i_deadline = mdate() + i_timeout; while( p_sys->snapshot.b_available && !p_sys->snapshot.p_picture && mdate() < i_deadline ) { vlc_cond_timedwait( &p_sys->snapshot.wait, &p_sys->snapshot.lock, i_timeout ); } picture_t *p_picture = p_sys->snapshot.p_picture; if( p_picture ) p_sys->snapshot.p_picture = p_picture->p_next; else if( p_sys->snapshot.i_request > 0 ) p_sys->snapshot.i_request--; vlc_mutex_unlock( &p_sys->snapshot.lock ); if( !p_picture ) { msg_Err( p_vout, "Failed to grab a snapshot" ); return VLC_EGENERIC; } if( pp_image ) { vlc_fourcc_t i_format = VLC_FOURCC('p','n','g',' '); if( psz_format && image_Type2Fourcc( psz_format ) ) i_format = image_Type2Fourcc( psz_format ); const int i_override_width = var_GetInteger( p_vout, "snapshot-width" ); const int i_override_height = var_GetInteger( p_vout, "snapshot-height" ); if( picture_Export( VLC_OBJECT(p_vout), pp_image, p_fmt, p_picture, i_format, i_override_width, i_override_height ) ) { msg_Err( p_vout, "Failed to convert image for snapshot" ); picture_Release( p_picture ); return VLC_EGENERIC; } } if( pp_picture ) *pp_picture = p_picture; else picture_Release( p_picture ); return VLC_SUCCESS; } /** * This function will handle a snapshot request */ static void VoutSaveSnapshot( vout_thread_t *p_vout ) { char *psz_path = var_GetNonEmptyString( p_vout, "snapshot-path" ); char *psz_format = var_GetNonEmptyString( p_vout, "snapshot-format" ); char *psz_prefix = var_GetNonEmptyString( p_vout, "snapshot-prefix" ); /* */ picture_t *p_picture; block_t *p_image; video_format_t fmt; /* 500ms timeout * XXX it will cause trouble with low fps video (< 2fps) */ if( vout_GetSnapshot( p_vout, &p_image, &p_picture, &fmt, psz_format, 500*1000 ) ) { p_picture = NULL; p_image = NULL; goto exit; } if( !psz_path ) { psz_path = VoutSnapshotGetDefaultDirectory(); if( !psz_path ) { msg_Err( p_vout, "no path specified for snapshots" ); goto exit; } } char *psz_filename; if( VoutWriteSnapshot( p_vout, &psz_filename, p_image, psz_path, psz_format, psz_prefix ) ) goto exit; VoutOsdSnapshot( p_vout, p_picture, psz_filename ); /* Generate a media player event - Right now just trigger a global libvlc var CHECK: Could not find a more local object. The goal is to communicate vout_thread with libvlc_media_player or its input_thread */ var_SetString( p_vout->p_libvlc, "vout-snapshottaken", psz_filename ); free( psz_filename ); exit: if( p_image ) block_Release( p_image ); if( p_picture ) picture_Release( p_picture ); free( psz_prefix ); free( psz_format ); free( psz_path ); } /***************************************************************************** * Handle filters *****************************************************************************/ void vout_EnableFilter( vout_thread_t *p_vout, char *psz_name, bool b_add, bool b_setconfig ) { char *psz_parser; char *psz_string = config_GetPsz( p_vout, "vout-filter" ); /* Todo : Use some generic chain manipulation functions */ if( !psz_string ) psz_string = strdup(""); psz_parser = strstr( psz_string, psz_name ); if( b_add ) { if( !psz_parser ) { psz_parser = psz_string; if( asprintf( &psz_string, (*psz_string) ? "%s:%s" : "%s%s", psz_string, psz_name ) == -1 ) { free( psz_parser ); return; } free( psz_parser ); } else return; } else { if( psz_parser ) { memmove( psz_parser, psz_parser + strlen(psz_name) + (*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ), strlen(psz_parser + strlen(psz_name)) + 1 ); /* Remove trailing : : */ if( *(psz_string+strlen(psz_string ) -1 ) == ':' ) { *(psz_string+strlen(psz_string ) -1 ) = '\0'; } } else { free( psz_string ); return; } } if( b_setconfig ) config_PutPsz( p_vout, "vout-filter", psz_string ); var_SetString( p_vout, "vout-filter", psz_string ); free( psz_string ); } /***************************************************************************** * InitWindowSize: find the initial dimensions the video window should have. ***************************************************************************** * This function will check the "width", "height" and "zoom" config options and * will calculate the size that the video window should have. *****************************************************************************/ static void InitWindowSize( vout_thread_t *p_vout, unsigned *pi_width, unsigned *pi_height ) { #define FP_FACTOR 1000 /* our fixed point factor */ int i_width = var_GetInteger( p_vout, "width" ); int i_height = var_GetInteger( p_vout, "height" ); float f_zoom = var_GetFloat( p_vout, "zoom" ); uint64_t ll_zoom = (uint64_t)( FP_FACTOR * f_zoom ); if( i_width > 0 && i_height > 0) { *pi_width = (int)( i_width * ll_zoom / FP_FACTOR ); *pi_height = (int)( i_height * ll_zoom / FP_FACTOR ); } else if( i_width > 0 ) { *pi_width = (int)( i_width * ll_zoom / FP_FACTOR ); *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom * p_vout->fmt_in.i_sar_den * i_width / p_vout->fmt_in.i_sar_num / FP_FACTOR / p_vout->fmt_in.i_visible_width ); } else if( i_height > 0 ) { *pi_height = (int)( i_height * ll_zoom / FP_FACTOR ); *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom * p_vout->fmt_in.i_sar_num * i_height / p_vout->fmt_in.i_sar_den / FP_FACTOR / p_vout->fmt_in.i_visible_height ); } else if( p_vout->fmt_in.i_sar_num == 0 || p_vout->fmt_in.i_sar_den == 0 ) { msg_Warn( p_vout, "aspect ratio screwed up" ); *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom / FP_FACTOR ); *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom /FP_FACTOR); } else if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den ) { *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom * p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den / FP_FACTOR ); *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom / FP_FACTOR ); } else { *pi_width = (int)( p_vout->fmt_in.i_visible_width * ll_zoom / FP_FACTOR ); *pi_height = (int)( p_vout->fmt_in.i_visible_height * ll_zoom * p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num / FP_FACTOR ); } msg_Dbg( p_vout, "window size: %ux%u", *pi_width, *pi_height ); #undef FP_FACTOR } /***************************************************************************** * Object variables callbacks *****************************************************************************/ static int ZoomCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; (void)psz_cmd; (void)oldval; (void)newval; (void)p_data; InitWindowSize( p_vout, &p_vout->i_window_width, &p_vout->i_window_height ); vout_Control( p_vout, VOUT_SET_SIZE, p_vout->i_window_width, p_vout->i_window_height ); return VLC_SUCCESS; } static int CropCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; int64_t i_aspect_num, i_aspect_den; unsigned int i_width, i_height; (void)oldval; (void)p_data; /* Restore defaults */ p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset; p_vout->fmt_in.i_visible_width = p_vout->fmt_render.i_visible_width; p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset; p_vout->fmt_in.i_visible_height = p_vout->fmt_render.i_visible_height; if( !strcmp( psz_cmd, "crop" ) ) { char *psz_end = NULL, *psz_parser = strchr( newval.psz_string, ':' ); if( psz_parser ) { /* We're using the 3:4 syntax */ i_aspect_num = strtol( newval.psz_string, &psz_end, 10 ); if( psz_end == newval.psz_string || !i_aspect_num ) goto crop_end; i_aspect_den = strtol( ++psz_parser, &psz_end, 10 ); if( psz_end == psz_parser || !i_aspect_den ) goto crop_end; i_width = p_vout->fmt_in.i_sar_den*p_vout->fmt_render.i_visible_height * i_aspect_num / i_aspect_den / p_vout->fmt_in.i_sar_num; i_height = p_vout->fmt_render.i_visible_width*p_vout->fmt_in.i_sar_num * i_aspect_den / i_aspect_num / p_vout->fmt_in.i_sar_den; if( i_width < p_vout->fmt_render.i_visible_width ) { p_vout->fmt_in.i_x_offset = p_vout->fmt_render.i_x_offset + (p_vout->fmt_render.i_visible_width - i_width) / 2; p_vout->fmt_in.i_visible_width = i_width; } else { p_vout->fmt_in.i_y_offset = p_vout->fmt_render.i_y_offset + (p_vout->fmt_render.i_visible_height - i_height) / 2; p_vout->fmt_in.i_visible_height = i_height; } } else { psz_parser = strchr( newval.psz_string, 'x' ); if( psz_parser ) { /* Maybe we're using the <width>x<height>+<left>+<top> syntax */ unsigned int i_crop_width, i_crop_height, i_crop_top, i_crop_left; i_crop_width = strtol( newval.psz_string, &psz_end, 10 ); if( psz_end != psz_parser ) goto crop_end; psz_parser = strchr( ++psz_end, '+' ); i_crop_height = strtol( psz_end, &psz_end, 10 ); if( psz_end != psz_parser ) goto crop_end; psz_parser = strchr( ++psz_end, '+' ); i_crop_left = strtol( psz_end, &psz_end, 10 ); if( psz_end != psz_parser ) goto crop_end; psz_end++; i_crop_top = strtol( psz_end, &psz_end, 10 ); if( *psz_end != '\0' ) goto crop_end; if( i_crop_top + i_crop_height >= p_vout->fmt_render.i_visible_height || i_crop_left + i_crop_width >= p_vout->fmt_render.i_visible_width ) { msg_Err( p_vout, "Unable to crop over picture boundaries"); return VLC_EGENERIC; } i_width = i_crop_width; p_vout->fmt_in.i_visible_width = i_width; i_height = i_crop_height; p_vout->fmt_in.i_visible_height = i_height; p_vout->fmt_in.i_x_offset = i_crop_left; p_vout->fmt_in.i_y_offset = i_crop_top; } else { /* Maybe we're using the <left>+<top>+<right>+<bottom> syntax */ unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right; psz_parser = strchr( newval.psz_string, '+' ); i_crop_left = strtol( newval.psz_string, &psz_end, 10 ); if( psz_end != psz_parser ) goto crop_end; psz_parser = strchr( ++psz_end, '+' ); i_crop_top = strtol( psz_end, &psz_end, 10 ); if( psz_end != psz_parser ) goto crop_end; psz_parser = strchr( ++psz_end, '+' ); i_crop_right = strtol( psz_end, &psz_end, 10 ); if( psz_end != psz_parser ) goto crop_end; psz_end++; i_crop_bottom = strtol( psz_end, &psz_end, 10 ); if( *psz_end != '\0' ) goto crop_end; if( i_crop_top + i_crop_bottom >= p_vout->fmt_render.i_visible_height || i_crop_right + i_crop_left >= p_vout->fmt_render.i_visible_width ) { msg_Err( p_vout, "Unable to crop over picture boundaries" ); return VLC_EGENERIC; } i_width = p_vout->fmt_render.i_visible_width - i_crop_left - i_crop_right; p_vout->fmt_in.i_visible_width = i_width; i_height = p_vout->fmt_render.i_visible_height - i_crop_top - i_crop_bottom; p_vout->fmt_in.i_visible_height = i_height; p_vout->fmt_in.i_x_offset = i_crop_left; p_vout->fmt_in.i_y_offset = i_crop_top; } } } else if( !strcmp( psz_cmd, "crop-top" ) || !strcmp( psz_cmd, "crop-left" ) || !strcmp( psz_cmd, "crop-bottom" ) || !strcmp( psz_cmd, "crop-right" ) ) { unsigned int i_crop_top, i_crop_left, i_crop_bottom, i_crop_right; i_crop_top = var_GetInteger( p_vout, "crop-top" ); i_crop_left = var_GetInteger( p_vout, "crop-left" ); i_crop_right = var_GetInteger( p_vout, "crop-right" ); i_crop_bottom = var_GetInteger( p_vout, "crop-bottom" ); if( i_crop_top + i_crop_bottom >= p_vout->fmt_render.i_visible_height || i_crop_right + i_crop_left >= p_vout->fmt_render.i_visible_width ) { msg_Err( p_vout, "Unable to crop over picture boundaries" ); return VLC_EGENERIC; } i_width = p_vout->fmt_render.i_visible_width - i_crop_left - i_crop_right; p_vout->fmt_in.i_visible_width = i_width; i_height = p_vout->fmt_render.i_visible_height - i_crop_top - i_crop_bottom; p_vout->fmt_in.i_visible_height = i_height; p_vout->fmt_in.i_x_offset = i_crop_left; p_vout->fmt_in.i_y_offset = i_crop_top; } crop_end: InitWindowSize( p_vout, &p_vout->i_window_width, &p_vout->i_window_height ); p_vout->i_changes |= VOUT_CROP_CHANGE; msg_Dbg( p_vout, "cropping picture %ix%i to %i,%i,%ix%i", p_vout->fmt_in.i_width, p_vout->fmt_in.i_height, p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset, p_vout->fmt_in.i_visible_width, p_vout->fmt_in.i_visible_height ); var_SetVoid( p_vout, "crop-update" ); return VLC_SUCCESS; } static int AspectCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; unsigned int i_aspect_num, i_aspect_den, i_sar_num, i_sar_den; vlc_value_t val; char *psz_end, *psz_parser = strchr( newval.psz_string, ':' ); (void)psz_cmd; (void)oldval; (void)p_data; /* Restore defaults */ p_vout->fmt_in.i_sar_num = p_vout->fmt_render.i_sar_num; p_vout->fmt_in.i_sar_den = p_vout->fmt_render.i_sar_den; p_vout->fmt_in.i_aspect = p_vout->fmt_render.i_aspect; p_vout->render.i_aspect = p_vout->fmt_render.i_aspect; if( !psz_parser ) goto aspect_end; i_aspect_num = strtol( newval.psz_string, &psz_end, 10 ); if( psz_end == newval.psz_string || !i_aspect_num ) goto aspect_end; i_aspect_den = strtol( ++psz_parser, &psz_end, 10 ); if( psz_end == psz_parser || !i_aspect_den ) goto aspect_end; i_sar_num = i_aspect_num * p_vout->fmt_render.i_visible_height; i_sar_den = i_aspect_den * p_vout->fmt_render.i_visible_width; vlc_ureduce( &i_sar_num, &i_sar_den, i_sar_num, i_sar_den, 0 ); p_vout->fmt_in.i_sar_num = i_sar_num; p_vout->fmt_in.i_sar_den = i_sar_den; p_vout->fmt_in.i_aspect = i_aspect_num * VOUT_ASPECT_FACTOR / i_aspect_den; p_vout->render.i_aspect = p_vout->fmt_in.i_aspect; aspect_end: if( p_vout->p->i_par_num && p_vout->p->i_par_den ) { p_vout->fmt_in.i_sar_num *= p_vout->p->i_par_den; p_vout->fmt_in.i_sar_den *= p_vout->p->i_par_num; p_vout->fmt_in.i_aspect = p_vout->fmt_in.i_aspect * p_vout->p->i_par_den / p_vout->p->i_par_num; p_vout->render.i_aspect = p_vout->fmt_in.i_aspect; } p_vout->i_changes |= VOUT_ASPECT_CHANGE; vlc_ureduce( &i_aspect_num, &i_aspect_den, p_vout->fmt_in.i_aspect, VOUT_ASPECT_FACTOR, 0 ); msg_Dbg( p_vout, "new aspect-ratio %i:%i, sample aspect-ratio %i:%i", i_aspect_num, i_aspect_den, p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den ); if( var_Get( p_vout, "crop", &val ) ) return VLC_EGENERIC; int i_ret = CropCallback( p_this, "crop", val, val, 0 ); free( val.psz_string ); return i_ret; } static int ScalingCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; (void)oldval; (void)newval; (void)p_data; vlc_mutex_lock( &p_vout->change_lock ); if( !strcmp( psz_cmd, "autoscale" ) ) { p_vout->i_changes |= VOUT_SCALE_CHANGE; } else if( !strcmp( psz_cmd, "scale" ) ) { p_vout->i_changes |= VOUT_ZOOM_CHANGE; } vlc_mutex_unlock( &p_vout->change_lock ); return VLC_SUCCESS; } static int OnTopCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; vlc_mutex_lock( &p_vout->change_lock ); p_vout->i_changes |= VOUT_ON_TOP_CHANGE; p_vout->b_on_top = newval.b_bool; vlc_mutex_unlock( &p_vout->change_lock ); /* Modify libvlc as well because the vout might have to be restarted */ var_Create( p_vout->p_libvlc, "video-on-top", VLC_VAR_BOOL ); var_Set( p_vout->p_libvlc, "video-on-top", newval ); (void)psz_cmd; (void)oldval; (void)p_data; return VLC_SUCCESS; } static int FullscreenCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; vlc_value_t val; (void)psz_cmd; (void)oldval; (void)p_data; p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE; /* Modify libvlc as well because the vout might have to be restarted */ var_Create( p_vout->p_libvlc, "fullscreen", VLC_VAR_BOOL ); var_Set( p_vout->p_libvlc, "fullscreen", newval ); val.b_bool = true; var_Set( p_vout, "intf-change", val ); return VLC_SUCCESS; } static int SnapshotCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { vout_thread_t *p_vout = (vout_thread_t *)p_this; VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(newval); VLC_UNUSED(p_data); VoutSaveSnapshot( p_vout ); return VLC_SUCCESS; } static int TitleShowCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data); vout_thread_t *p_vout = (vout_thread_t *)p_this; p_vout->p->b_title_show = newval.b_bool; return VLC_SUCCESS; } static int TitleTimeoutCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data); vout_thread_t *p_vout = (vout_thread_t *)p_this; p_vout->p->i_title_timeout = (mtime_t) newval.i_int; return VLC_SUCCESS; } static int TitlePositionCallback( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data); vout_thread_t *p_vout = (vout_thread_t *)p_this; p_vout->p->i_title_position = newval.i_int; return VLC_SUCCESS; }