-/* Structures exported to the interface */
+/*****************************************************************************
+ * input_ext-intf.h: structures of the input exported to the interface
+ * This header provides structures to read the stream descriptors and
+ * control the pace of reading.
+ *****************************************************************************
+ * Copyright (C) 1999, 2000 VideoLAN
+ * $Id: input_ext-intf.h,v 1.38 2001/05/30 17:03:11 sam Exp $
+ *
+ * Authors: Christophe Massiot <massiot@via.ecp.fr>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
/*
* Communication input -> interface
*/
#define INPUT_MAX_PLUGINS 1
+/* FIXME ! */
+#define REQUESTED_MPEG 1
+#define REQUESTED_AC3 2
+#define REQUESTED_LPCM 3
+#define REQUESTED_NOAUDIO 255
+
+#define OFFSETTOTIME_MAX_SIZE 10
/*****************************************************************************
* es_descriptor_t: elementary stream descriptor
u16 i_id; /* stream ID for PS, PID for TS */
u8 i_stream_id; /* stream ID defined in the PES */
u8 i_type; /* stream type */
+ boolean_t b_audio; /* is the stream an audio stream that
+ * will need to be discarded with
+ * fast forward and slow motion ? */
+ u8 i_cat; /* stream category: video, audio,
+ * spu, other */
+
+ char psz_desc[20]; /* description of ES: audio language
+ * for instance ; NULL if not
+ * available */
/* Demultiplexer information */
void * p_demux_data;
struct pgrm_descriptor_s *
p_pgrm; /* very convenient in the demultiplexer */
- boolean_t b_discontinuity;
/* PES parser information */
struct pes_packet_s * p_pes; /* Current PES */
#define MPEG1_AUDIO_ES 0x03
#define MPEG2_AUDIO_ES 0x04
#define AC3_AUDIO_ES 0x81
-#define DVD_SPU_ES 0x82 /* 0x82 might violate the norm */
+/* These ones might violate the norm : */
+#define DVD_SPU_ES 0x82
#define LPCM_AUDIO_ES 0x83
-
+#define UNKNOWN_ES 0xFF
+
+/* ES Categories to be used by interface plugins */
+#define VIDEO_ES 0x00
+#define AUDIO_ES 0x01
+#define SPU_ES 0x02
+#define NAV_ES 0x03
+#define UNKNOWN_ES 0xFF
/*****************************************************************************
* pgrm_descriptor_t
*****************************************************************************
char * psz_srv_name;
/* Synchronization information */
- /* system_date = PTS_date + delta_cr + delta_absolute */
mtime_t delta_cr;
- mtime_t delta_absolute;
- mtime_t last_cr;
+ mtime_t cr_ref, sysdate_ref;
+ mtime_t last_cr; /* reference to detect unexpected stream
+ * discontinuities */
count_t c_average_count;
/* counter used to compute dynamic average values */
int i_synchro_state;
/* Demultiplexer data */
void * p_demux_data;
- /* Decoders control */
- struct vout_thread_s * p_vout;
- struct aout_thread_s * p_aout;
-
int i_es_number; /* size of the following array */
es_descriptor_t ** pp_es; /* array of pointers to ES */
} pgrm_descriptor_t;
/* Synchro states */
#define SYNCHRO_OK 0
-#define SYNCHRO_NOT_STARTED 1
-#define SYNCHRO_START 2
-#define SYNCHRO_REINIT 3
+#define SYNCHRO_START 1
+#define SYNCHRO_REINIT 2
+
+/*****************************************************************************
+ * input_area_t
+ *****************************************************************************
+ * Attributes for current area (title for DVD)
+ *****************************************************************************/
+typedef struct input_area_s
+{
+ /* selected area attributes */
+ int i_id; /* identificator for area */
+ off_t i_start; /* start offset of area */
+ off_t i_size; /* total size of the area
+ * (in arbitrary units) */
+
+ /* navigation parameters */
+ off_t i_tell; /* actual location in the area
+ * (in arbitrary units) */
+ off_t i_seek; /* next requested location
+ * (changed by the interface thread */
+
+ /* area subdivision */
+ int i_part_nb; /* number of parts (chapter for DVD)*/
+ int i_part; /* currently selected part */
+
+ int i_angle_nb; /* number of angles/title units */
+ int i_angle;
+
+ /* offset to plugin related data */
+ off_t i_plugin_data;
+} input_area_t;
/*****************************************************************************
* stream_descriptor_t
typedef struct stream_descriptor_s
{
u16 i_stream_id; /* stream id */
+ boolean_t b_changed; /* if stream has been changed,
+ we have to inform the interface */
vlc_mutex_t stream_lock; /* to be taken every time you read
* or modify stream, pgrm or es */
/* Input method data */
+ int i_method; /* input method for stream: file,
+ disc or network */
boolean_t b_pace_control; /* can we read when we want ? */
boolean_t b_seekable; /* can we do lseek() ? */
+
/* if (b_seekable) : */
- off_t i_size; /* total size of the file (in bytes) */
- off_t i_tell;/* actual location in the file (in bytes) */
+ int i_area_nb;
+ input_area_t ** pp_areas; /* list of areas in stream == offset
+ * interval with own properties */
+ input_area_t * p_selected_area;
+ input_area_t * p_new_area; /* Newly selected area from
+ * the interface */
+
+ u32 i_mux_rate; /* the rate we read the stream (in
+ * units of 50 bytes/s) ; 0 if undef */
+
+ /* New status and rate requested by the interface */
+ int i_new_status, i_new_rate;
+ vlc_cond_t stream_wait; /* interface -> input in case of a
+ * status change request */
/* Demultiplexer data */
void * p_demux_data;
- /* Programs description */
+ /* Programs descriptions */
int i_pgrm_number; /* size of the following array */
pgrm_descriptor_t ** pp_programs; /* array of pointers to pgrm */
+ /* ES descriptions */
+ int i_es_number;
+ es_descriptor_t ** pp_es; /* carried elementary streams */
+ int i_selected_es_number;
+ es_descriptor_t ** pp_selected_es; /* ES with a decoder */
+ es_descriptor_t * p_newly_selected_es; /* ES selected from
+ * the interface */
+ es_descriptor_t * p_removed_es; /* ES removed from the interface */
+
+
/* Stream control */
stream_ctrl_t control;
} stream_descriptor_t;
*****************************************************************************
* This structure includes all the local static variables of an input thread
*****************************************************************************/
-struct aout_thread_s;
struct vout_thread_s;
typedef struct input_thread_s
/* Thread properties and locks */
boolean_t b_die; /* 'die' flag */
boolean_t b_error;
+ boolean_t b_eof;
vlc_thread_t thread_id; /* id for thread functions */
int * pi_status; /* temporary status flag */
- struct input_config_s * p_config;
+ /* Input module */
+ struct module_s * p_input_module;
+
+ /* Init/End */
+ void (* pf_init)( struct input_thread_s * );
+ void (* pf_open)( struct input_thread_s * );
+ void (* pf_close)( struct input_thread_s * );
+ void (* pf_end)( struct input_thread_s * );
+
+ /* Read & Demultiplex */
+ int (* pf_read)( struct input_thread_s *,
+ struct data_packet_s * pp_packets[] );
+ void (* pf_demux)( struct input_thread_s *,
+ struct data_packet_s * );
+
+ /* Packet management facilities */
+ struct data_packet_s *(*pf_new_packet)( void *, size_t );
+ struct pes_packet_s *(* pf_new_pes)( void * );
+ void (* pf_delete_packet)( void *,
+ struct data_packet_s * );
+ void (* pf_delete_pes)( void *, struct pes_packet_s * );
+
+ /* Stream control capabilities */
+ int (* pf_set_area)( struct input_thread_s *,
+ struct input_area_s * );
+ int (* pf_rewind)( struct input_thread_s * );
+ /* NULL if we don't support going *
+ * backwards (it's gonna be fun) */
+ void (* pf_seek)( struct input_thread_s *, off_t );
+
+ /* Special callback functions */
+ void (* pf_file_open ) ( struct input_thread_s * );
+ void (* pf_file_close ) ( struct input_thread_s * );
+#if !defined( SYS_BEOS ) && !defined( SYS_NTO )
+ void (* pf_network_open ) ( struct input_thread_s * );
+ void (* pf_network_close ) ( struct input_thread_s * );
+#endif
- struct input_capabilities_s *
- pp_plugins[INPUT_MAX_PLUGINS];/* list of plugins */
- struct input_capabilities_s *
- p_plugin; /* selected plugin */
i_p_config_t i_p_config; /* plugin configuration */
+ char * p_source;
int i_handle; /* socket or file descriptor */
- void * p_method_data;
+ int i_read_once; /* number of packet read by
+ * pf_read once */
+ void * p_method_data; /* data of the packet manager */
+ void * p_plugin_data; /* data of the plugin */
/* General stream description */
stream_descriptor_t stream; /* PAT tables */
- es_descriptor_t p_es[INPUT_MAX_ES];
- /* carried elementary streams */
-
- /* List of streams to demux */
- es_descriptor_t * pp_selected_es[INPUT_MAX_SELECTED_ES];
-
- /* For auto-launch of decoders */
- struct aout_thread_s * p_default_aout;
- struct vout_thread_s * p_default_vout;
#ifdef STATS
count_t c_loops;
#endif
} input_thread_t;
-
-/*
- * Communication interface -> input
- */
-
-/*****************************************************************************
- * input_config_t
- *****************************************************************************
- * This structure is given by the interface to an input thread
- *****************************************************************************/
-typedef struct input_config_s
-{
- /* Input method description */
- int i_method; /* input method */
- char * p_source; /* source */
-
- /* For auto-launch of decoders */
- struct aout_thread_s * p_default_aout;
- struct vout_thread_s * p_default_vout;
-} input_config_t;
-
/* Input methods */
-#define INPUT_METHOD_NONE 0 /* input thread is inactive */
-#define INPUT_METHOD_FILE 10 /* stream is read from file p_source */
-#define INPUT_METHOD_UCAST 20 /* UDP unicast */
-#define INPUT_METHOD_MCAST 21 /* UDP multicast */
-#define INPUT_METHOD_BCAST 22 /* UDP broadcast */
-#define INPUT_METHOD_VLAN_BCAST 32 /* UDP broadcast with VLANs */
+/* The first figure is a general method that can be used in interface plugins ;
+ * The second figure is a detailed sub-method */
+#define INPUT_METHOD_NONE 0x0 /* input thread is inactive */
+#define INPUT_METHOD_FILE 0x10 /* stream is read from file p_source */
+#define INPUT_METHOD_DISC 0x20 /* stream is read directly from disc */
+#define INPUT_METHOD_DVD 0x21 /* stream is read from DVD */
+#define INPUT_METHOD_VCD 0x22 /* stream is read from VCD */
+#define INPUT_METHOD_NETWORK 0x30 /* stream is read from network */
+#define INPUT_METHOD_UCAST 0x31 /* UDP unicast */
+#define INPUT_METHOD_MCAST 0x32 /* UDP multicast */
+#define INPUT_METHOD_BCAST 0x33 /* UDP broadcast */
+#define INPUT_METHOD_VLAN_BCAST 0x34 /* UDP broadcast with VLANs */
+
+
+/* Status changing methods */
+#define INPUT_STATUS_END 0
+#define INPUT_STATUS_PLAY 1
+#define INPUT_STATUS_PAUSE 2
+#define INPUT_STATUS_FASTER 3
+#define INPUT_STATUS_SLOWER 4
/*****************************************************************************
* Prototypes
*****************************************************************************/
-struct input_thread_s * input_CreateThread( struct input_config_s *,
- int *pi_status );
-void input_DestroyThread( struct input_thread_s *,
+struct input_thread_s * input_CreateThread ( struct playlist_item_s *,
int *pi_status );
-void input_PauseProgram( struct input_thread_s *,
- struct pgrm_descriptor_s * );
-void input_PlayProgram( struct input_thread_s *,
- struct pgrm_descriptor_s * );
-void input_FFProgram( struct input_thread_s *,
- struct pgrm_descriptor_s * );
-void input_SMProgram( struct input_thread_s *,
- struct pgrm_descriptor_s * );
-void input_RewindProgram( struct input_thread_s *,
- struct pgrm_descriptor_s * );
+void input_DestroyThread( struct input_thread_s *, int *pi_status );
+
+void input_SetStatus( struct input_thread_s *, int );
+void input_SetRate ( struct input_thread_s *, int );
+void input_Seek ( struct input_thread_s *, off_t );
+void input_DumpStream( struct input_thread_s * );
+char * input_OffsetToTime( struct input_thread_s *, char * psz_buffer, off_t );
+int input_ChangeES ( struct input_thread_s *, struct es_descriptor_s *, u8 );
+int input_ToggleES ( struct input_thread_s *,
+ struct es_descriptor_s *,
+ boolean_t );
+int input_ChangeArea( input_thread_t *, input_area_t * );
+
projects / vlc / blobdiff