eyetv.m
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:12k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * eyetv.c : Access module to connect to our plugin running within EyeTV
- *****************************************************************************
- * Copyright (C) 2006-2007 the VideoLAN team
- * $Id: 6933e233bb1b27dbbfc1dee5590bfc2bf6081061 $
- *
- * Author: Felix Kühne <fkuehne at videolan dot 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_access.h>
- #include <vlc_network.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <sys/un.h>
- #include <unistd.h>
- #import <Foundation/Foundation.h>
- #define MTU 65535
- /* TODO:
- * watch for PluginQuit or DeviceRemoved to stop output to VLC's core then */
- /*****************************************************************************
- * Module descriptior
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close( vlc_object_t * );
- #define CHANNEL_TEXT N_("Channel number")
- #define CHANNEL_LONGTEXT N_(
- "EyeTV program number, or use 0 for last channel, "
- "-1 for S-Video input, -2 for Composite input" )
- #define CACHING_TEXT N_("Caching value in ms")
- #define CACHING_LONGTEXT N_(
- "Caching value for EyeTV captures. This "
- "value should be set in milliseconds." )
- vlc_module_begin ()
- set_shortname( "EyeTV" )
- set_description( N_("EyeTV input") )
- set_category( CAT_INPUT )
- set_subcategory( SUBCAT_INPUT_ACCESS )
- add_integer( "eyetv-channel", 0, NULL,
- CHANNEL_TEXT, CHANNEL_LONGTEXT, false )
- set_capability( "access", 0 )
- add_shortcut( "eyetv" )
- set_callbacks( Open, Close )
- add_integer( "eyetv-caching", DEFAULT_PTS_DELAY / 1000, NULL,
- CACHING_TEXT, CACHING_LONGTEXT, true);
- vlc_module_end ()
- /*****************************************************************************
- * Access: local prototypes
- *****************************************************************************/
- struct access_sys_t
- {
- int eyetvSock;
- int i_pts_delay;
- };
- static block_t *BlockRead( access_t *);
- static int Control( access_t *, int, va_list );
- static void selectChannel( vlc_object_t *p_this, int theChannelNum )
- {
- NSAppleScript *script;
- NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
- switch( theChannelNum )
- {
- case -2: // Composite
- script = [[NSAppleScript alloc] initWithSource:
- @"tell application "EyeTV"n"
- " input_change input source composite video inputn"
- " volume_change level 0n"
- " show player_windown"
- " tell application "System Events" to set visible of process "EyeTV" to falsen"
- "end tell"];
- break;
- case -1: // S-Video
- script = [[NSAppleScript alloc] initWithSource:
- @"tell application "EyeTV"n"
- " input_change input source S video inputn"
- " volume_change level 0n"
- " show player_windown"
- " tell application "System Events" to set visible of process "EyeTV" to falsen"
- "end tell"];
- break;
- case 0: // Last
- script = [[NSAppleScript alloc] initWithSource:
- @"tell application "EyeTV"n"
- " volume_change level 0n"
- " show player_windown"
- " tell application "System Events" to set visible of process "EyeTV" to falsen"
- "end tell"];
- break;
- default:
- if( theChannelNum > 0 )
- {
- NSString *channel_change = [NSString stringWithFormat:
- @"tell application "EyeTV"n"
- " channel_change channel number %dn"
- " volume_change level 0n"
- " show player_windown"
- " tell application "System Events" to set visible of process "EyeTV" to falsen"
- "end tell", theChannelNum];
- script = [[NSAppleScript alloc] initWithSource:channel_change];
- }
- else
- return;
- }
- NSDictionary *errorDict;
- NSAppleEventDescriptor *descriptor = [script executeAndReturnError:&errorDict];
- if( nil == descriptor )
- {
- NSString *errorString = [errorDict objectForKey:NSAppleScriptErrorMessage];
- msg_Err( p_this, "EyeTV source change failed with error status '%s'", [errorString UTF8String] );
- }
- [script release];
- [pool release];
- }
- /*****************************************************************************
- * Open: sets up the module and its threads
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- access_t *p_access = (access_t *)p_this;
- access_sys_t *p_sys;
- struct sockaddr_un publicAddr, peerAddr;
- int publicSock;
- /* Init p_access */
- access_InitFields( p_access );
- ACCESS_SET_CALLBACKS( NULL, BlockRead, Control, NULL );
- p_sys = p_access->p_sys = calloc( 1, sizeof( access_sys_t ) );
- if( !p_sys )
- return VLC_ENOMEM;
- p_sys->i_pts_delay = var_CreateGetInteger( p_access, "eyetv-caching" );
- int val = var_CreateGetInteger( p_access, "eyetv-channel" );
- msg_Dbg( p_access, "coming up" );
- selectChannel( p_this, val );
- /* socket */
- memset(&publicAddr, 0, sizeof(publicAddr));
- publicAddr.sun_family = AF_UNIX;
- strncpy(publicAddr.sun_path, "/tmp/.vlc-eyetv-bridge", sizeof(publicAddr.sun_path)-1);
- /* remove previous public path if it wasn't cleanly removed */
- if( (0 != unlink(publicAddr.sun_path)) && (ENOENT != errno) )
- {
- msg_Err( p_access, "local socket path is not usable (errno=%d)", errno );
- free( p_sys );
- return VLC_EGENERIC;
- }
- publicSock = socket(PF_UNIX, SOCK_STREAM, 0);
- if( publicSock == -1 )
- {
- msg_Err( p_access, "create local socket failed (errno=%d)", errno );
- free( p_sys );
- return VLC_EGENERIC;
- }
- if( bind(publicSock, (struct sockaddr *)&publicAddr, sizeof(struct sockaddr_un)) == -1 )
- {
- msg_Err( p_access, "bind local socket failed (errno=%d)", errno );
- close( publicSock );
- free( p_sys );
- return VLC_EGENERIC;
- }
- /* we are not expecting more than one connection */
- if( listen(publicSock, 1) == -1 )
- {
- msg_Err( p_access, "cannot accept connection (errno=%d)", errno );
- close( publicSock );
- free( p_sys );
- return VLC_EGENERIC;
- }
- else
- {
- socklen_t peerSockLen = sizeof(struct sockaddr_un);
- int peerSock;
- /* tell the EyeTV plugin to open start sending */
- CFNotificationCenterPostNotification( CFNotificationCenterGetDistributedCenter (),
- CFSTR("VLCAccessStartDataSending"),
- CFSTR("VLCEyeTVSupport"),
- /*userInfo*/ NULL,
- TRUE );
- msg_Dbg( p_access, "plugin notified" );
- peerSock = accept(publicSock, (struct sockaddr *)&peerAddr, &peerSockLen);
- if( peerSock == -1 )
- {
- msg_Err( p_access, "cannot wait for connection (errno=%d)", errno );
- close( publicSock );
- free( p_sys );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_access, "plugin connected" );
- p_sys->eyetvSock = peerSock;
- /* remove public access */
- close(publicSock);
- unlink(publicAddr.sun_path);
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close: closes msg-port, free resources
- *****************************************************************************/
- static void Close( vlc_object_t *p_this )
- {
- access_t *p_access = (access_t *)p_this;
- access_sys_t *p_sys = p_access->p_sys;
- msg_Dbg( p_access, "closing" );
- /* tell the EyeTV plugin to close its msg port and stop sending */
- CFNotificationCenterPostNotification( CFNotificationCenterGetDistributedCenter (),
- CFSTR("VLCAccessStopDataSending"),
- CFSTR("VLCEyeTVSupport"),
- /*userInfo*/ NULL,
- TRUE );
- msg_Dbg( p_access, "plugin notified" );
- close(p_sys->eyetvSock);
- msg_Dbg( p_access, "msg port closed and freed" );
- free( p_sys );
- }
- /*****************************************************************************
- * BlockRead: forwarding data from EyeTV plugin which was received above
- *****************************************************************************/
- static block_t *BlockRead( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- block_t *p_block;
- ssize_t len;
- if( p_access->info.b_eof )
- return NULL;
- /* Read data */
- p_block = block_New( p_access, MTU );
- len = net_Read( p_access, p_sys->eyetvSock, NULL,
- p_block->p_buffer, MTU, false );
- if( len < 0 )
- {
- block_Release( p_block );
- return NULL;
- }
- return block_Realloc( p_block, 0, p_block->i_buffer = len );
- }
- /*****************************************************************************
- * Control:
- *****************************************************************************/
- static int Control( access_t *p_access, int i_query, va_list args )
- {
- bool *pb_bool;
- int *pi_int;
- int64_t *pi_64;
- access_sys_t *p_sys = (access_sys_t *) p_access->p_sys;
- switch( i_query )
- {
- case ACCESS_CAN_SEEK:
- case ACCESS_CAN_FASTSEEK:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = false;
- break;
- case ACCESS_CAN_PAUSE:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = false;
- break;
- case ACCESS_CAN_CONTROL_PACE:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = false;
- break;
- /* */
- case ACCESS_GET_PTS_DELAY:
- pi_64 = (int64_t*)va_arg( args, int64_t * );
- *pi_64 = (int64_t) p_sys->i_pts_delay * 1000;
- break;
- case ACCESS_SET_PAUSE_STATE:
- case ACCESS_GET_TITLE_INFO:
- case ACCESS_SET_TITLE:
- case ACCESS_SET_SEEKPOINT:
- case ACCESS_SET_PRIVATE_ID_STATE:
- case ACCESS_GET_CONTENT_TYPE:
- return VLC_EGENERIC;
- default:
- msg_Warn( p_access, "unimplemented query in control" );
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }