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- /*****************************************************************************
- * vlc_vlm.h: VLM core structures
- *****************************************************************************
- * Copyright (C) 2000, 2001 the VideoLAN team
- * $Id: 665cf2db9fa08651be180a317adfcc024a46d0d5 $
- *
- * Authors: Simon Latapie <garf@videolan.org>
- * Laurent Aimar <fenrir@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.
- *****************************************************************************/
-
- #ifndef VLC_VLM_H
- #define VLC_VLM_H 1
-
- /**
- * \file
- * This file defines VLM core functions and structures in vlc
- */
-
- #include <vlc_input.h>
-
- /**
- * \defgroup server VLM
- * VLM is the server core in vlc that allows streaming of multiple media streams
- * at the same time. It provides broadcast, schedule and video on demand features
- * for streaming using several streaming and network protocols.
- * @{
- */
-
- /* VLM media */
- typedef struct
- {
- int64_t id;
- bool b_enabled;
-
- /* */
- char *psz_name;
-
- /* */
- int i_input;
- char **ppsz_input;
-
- int i_option;
- char **ppsz_option;
-
- char *psz_output;
-
- /* */
- bool b_vod;
- struct
- {
- bool b_loop;
- } broadcast;
- struct
- {
- char *psz_mux;
- } vod;
-
- } vlm_media_t;
-
- /* VLM media instance */
- typedef struct
- {
- char *psz_name;
-
- int64_t i_time;
- int64_t i_length;
- double d_position;
- bool b_paused;
- int i_rate; // normal is INPUT_RATE_DEFAULT
- } vlm_media_instance_t;
-
- #if 0
- typedef struct
- {
-
- } vlm_schedule_t
- #endif
-
- /* VLM control query */
- enum vlm_query_e
- {
- /* --- Media control */
- /* Get all medias */
- VLM_GET_MEDIAS, /* arg1=vlm_media_t ***, int *pi_media */
- /* Delete all medias */
- VLM_CLEAR_MEDIAS, /* no arg */
-
- /* Add a new media */
- VLM_ADD_MEDIA, /* arg1=vlm_media_t* arg2=int64_t *p_id res=can fail */
- /* Delete an existing media */
- VLM_DEL_MEDIA, /* arg1=int64_t id */
- /* Change properties of an existing media (all fields but id and b_vod) */
- VLM_CHANGE_MEDIA, /* arg1=vlm_media_t* res=can fail */
- /* Get 1 media by it's ID */
- VLM_GET_MEDIA, /* arg1=int64_t id arg2=vlm_media_t ** */
- /* Get media ID from its name */
- VLM_GET_MEDIA_ID, /* arg1=const char *psz_name arg2=int64_t* */
-
- /* Media instance control XXX VOD control are for internal use only */
- /* Get all media instances */
- VLM_GET_MEDIA_INSTANCES, /* arg1=int64_t id arg2=vlm_media_instance_t *** arg3=int *pi_instance */
- /* Delete all media instances */
- VLM_CLEAR_MEDIA_INSTANCES, /* arg1=int64_t id */
- /* Control broadcast instance */
- VLM_START_MEDIA_BROADCAST_INSTANCE, /* arg1=int64_t id, arg2=const char *psz_instance_name, int i_input_index res=can fail */
- /* Control VOD instance */
- VLM_START_MEDIA_VOD_INSTANCE, /* arg1=int64_t id, arg2=const char *psz_instance_name, int i_input_index char *psz_vod_output res=can fail */
- /* Stop an instance */
- VLM_STOP_MEDIA_INSTANCE, /* arg1=int64_t id, arg2=const char *psz_instance_name res=can fail */
- /* Pause an instance */
- VLM_PAUSE_MEDIA_INSTANCE, /* arg1=int64_t id, arg2=const char *psz_instance_name res=can fail */
- /* Get instance position time (in microsecond) */
- VLM_GET_MEDIA_INSTANCE_TIME, /* arg1=int64_t id, arg2=const char *psz_instance_name arg3=int64_t * */
- /* Set instance position time (in microsecond) */
- VLM_SET_MEDIA_INSTANCE_TIME, /* arg1=int64_t id, arg2=const char *psz_instance_name arg3=int64_t */
- /* Get instance position ([0.0 .. 1.0]) */
- VLM_GET_MEDIA_INSTANCE_POSITION, /* arg1=int64_t id, arg2=const char *psz_instance_name arg3=double * */
- /* Set instance position ([0.0 .. 1.0]) */
- VLM_SET_MEDIA_INSTANCE_POSITION, /* arg1=int64_t id, arg2=const char *psz_instance_name arg3=double */
-
- /* Schedule control */
- VLM_CLEAR_SCHEDULES, /* no arg */
- /* TODO: missing schedule control */
-
- /* */
- };
-
-
- /* VLM specific - structures and functions */
-
- /* ok, here is the structure of a vlm_message:
- The parent node is ( name_of_the_command , NULL ), or
- ( name_of_the_command , message_error ) on error.
- If a node has children, it should not have a value (=NULL).*/
- struct vlm_message_t
- {
- char *psz_name;
- char *psz_value;
-
- int i_child;
- vlm_message_t **child;
- };
-
-
- #ifdef __cpluplus
- extern "C" {
- #endif
-
- #define vlm_New( a ) __vlm_New( VLC_OBJECT(a) )
- VLC_EXPORT( vlm_t *, __vlm_New, ( vlc_object_t * ) );
- VLC_EXPORT( void, vlm_Delete, ( vlm_t * ) );
- VLC_EXPORT( int, vlm_ExecuteCommand, ( vlm_t *, const char *, vlm_message_t ** ) );
- VLC_EXPORT( int, vlm_Control, ( vlm_t *p_vlm, int i_query, ... ) );
-
- VLC_EXPORT( vlm_message_t *, vlm_MessageNew, ( const char *, const char *, ... ) LIBVLC_FORMAT( 2, 3 ) );
- VLC_EXPORT( vlm_message_t *, vlm_MessageAdd, ( vlm_message_t *, vlm_message_t * ) );
- VLC_EXPORT( void, vlm_MessageDelete, ( vlm_message_t * ) );
-
- /* media helpers */
- static inline void vlm_media_Init( vlm_media_t *p_media )
- {
- memset( p_media, 0, sizeof(vlm_media_t) );
- p_media->id = 0; // invalid id
- p_media->psz_name = NULL;
- TAB_INIT( p_media->i_input, p_media->ppsz_input );
- TAB_INIT( p_media->i_option, p_media->ppsz_option );
- p_media->psz_output = NULL;
- p_media->b_vod = false;
-
- p_media->vod.psz_mux = NULL;
- p_media->broadcast.b_loop = false;
- }
-
- static inline void vlm_media_Copy( vlm_media_t *p_dst, vlm_media_t *p_src )
- {
- int i;
-
- memset( p_dst, 0, sizeof(vlm_media_t) );
- p_dst->id = p_src->id;
- p_dst->b_enabled = p_src->b_enabled;
- if( p_src->psz_name )
- p_dst->psz_name = strdup( p_src->psz_name );
-
- for( i = 0; i < p_src->i_input; i++ )
- TAB_APPEND_CPP( char, p_dst->i_input, p_dst->ppsz_input, strdup(p_src->ppsz_input[i]) );
- for( i = 0; i < p_src->i_option; i++ )
- TAB_APPEND_CPP( char, p_dst->i_option, p_dst->ppsz_option, strdup(p_src->ppsz_option[i]) );
-
- if( p_src->psz_output )
- p_dst->psz_output = strdup( p_src->psz_output );
-
- p_dst->b_vod = p_src->b_vod;
- if( p_src->b_vod )
- {
- if( p_src->vod.psz_mux )
- p_dst->vod.psz_mux = strdup( p_src->vod.psz_mux );
- }
- else
- {
- p_dst->broadcast.b_loop = p_src->broadcast.b_loop;
- }
- }
- static inline void vlm_media_Clean( vlm_media_t *p_media )
- {
- int i;
- free( p_media->psz_name );
-
- for( i = 0; i < p_media->i_input; i++ )
- free( p_media->ppsz_input[i]) ;
- TAB_CLEAN(p_media->i_input, p_media->ppsz_input );
-
- for( i = 0; i < p_media->i_option; i++ )
- free( p_media->ppsz_option[i]) ;
- TAB_CLEAN(p_media->i_option, p_media->ppsz_option );
-
- free( p_media->psz_output );
- if( p_media->b_vod )
- free( p_media->vod.psz_mux );
- }
- static inline vlm_media_t *vlm_media_New(void)
- {
- vlm_media_t *p_media = (vlm_media_t *)malloc( sizeof(vlm_media_t) );
- if( p_media )
- vlm_media_Init( p_media );
- return p_media;
- }
- static inline void vlm_media_Delete( vlm_media_t *p_media )
- {
- vlm_media_Clean( p_media );
- free( p_media );
- }
- static inline vlm_media_t *vlm_media_Duplicate( vlm_media_t *p_src )
- {
- vlm_media_t *p_dst = vlm_media_New();
- if( p_dst )
- vlm_media_Copy( p_dst, p_src );
- return p_dst;
- }
-
- /* media instance helpers */
- static inline void vlm_media_instance_Init( vlm_media_instance_t *p_instance )
- {
- memset( p_instance, 0, sizeof(vlm_media_instance_t) );
- p_instance->psz_name = NULL;
- p_instance->i_time = 0;
- p_instance->i_length = 0;
- p_instance->d_position = 0.0;
- p_instance->b_paused = false;
- p_instance->i_rate = INPUT_RATE_DEFAULT;
- }
- static inline void vlm_media_instance_Clean( vlm_media_instance_t *p_instance )
- {
- free( p_instance->psz_name );
- }
- static inline vlm_media_instance_t *vlm_media_instance_New(void)
- {
- vlm_media_instance_t *p_instance = (vlm_media_instance_t *) malloc( sizeof(vlm_media_instance_t) );
- if( p_instance )
- vlm_media_instance_Init( p_instance );
- return p_instance;
- }
- static inline void vlm_media_instance_Delete( vlm_media_instance_t *p_instance )
- {
- vlm_media_instance_Clean( p_instance );
- free( p_instance );
- }
-
- #ifdef __cpluplus
- }
- #endif
-
- /**@}*/
-
- #endif
-