* control the pace of reading.
*****************************************************************************
* Copyright (C) 1999, 2000 VideoLAN
- * $Id: input_ext-intf.h,v 1.46 2001/11/11 18:15:41 sam Exp $
+ * $Id: input_ext-intf.h,v 1.78 2002/11/11 14:39:11 sam Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
+#ifndef _VLC_INPUT_EXT_INTF_H
+#define _VLC_INPUT_EXT_INTF_H 1
+
/*
* Communication input -> interface
*/
-#define INPUT_MAX_PLUGINS 1
/* FIXME ! */
#define REQUESTED_MPEG 1
-#define REQUESTED_AC3 2
+#define REQUESTED_A52 2
#define REQUESTED_LPCM 3
#define REQUESTED_NOAUDIO 255
* Describes an elementary stream, and includes fields required to handle and
* demultiplex this elementary stream.
*****************************************************************************/
-struct decoder_fifo_s; /* defined in input_ext-dec.h */
-struct pgrm_descriptor_s;
-
-typedef struct es_descriptor_s
+struct es_descriptor_t
{
- 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 */
-
+ uint16_t i_id; /* stream ID for PS, PID for TS */
+ uint8_t i_stream_id; /* stream ID defined in the PES */
+ vlc_fourcc_t i_fourcc; /* stream type */
+ uint8_t i_cat; /* stream category (audio, video, spu) */
+ int i_demux_fd; /* used to store demux device
+ file handle */
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 */
+ es_sys_t * p_demux_data;
+ pgrm_descriptor_t * p_pgrm; /* very convenient in the demultiplexer */
/* PES parser information */
- struct pes_packet_s * p_pes; /* Current PES */
- struct data_packet_s * p_last; /* The last packet gathered at present */
+ pes_packet_t * p_pes; /* Current PES */
int i_pes_real_size; /* as indicated by the header */
/* Decoder information */
- struct decoder_fifo_s * p_decoder_fifo;
- vlc_thread_t thread_id; /* ID of the decoder */
+ decoder_fifo_t * p_decoder_fifo;
count_t c_packets; /* total packets read */
count_t c_invalid_packets; /* invalid packets read */
-} es_descriptor_t;
+};
/* Special PID values - note that the PID is only on 13 bits, and that values
* greater than 0x1fff have no meaning in a stream */
#define CONDITIONNAL_ACCESS_TABLE_PID 0x0001 /* not used */
#define EMPTY_ID 0xffff /* empty record in a table */
-/* ES streams types - see ISO/IEC 13818-1 table 2-29 numbers */
-#define MPEG1_VIDEO_ES 0x01
-#define MPEG2_VIDEO_ES 0x02
-#define MPEG1_AUDIO_ES 0x03
-#define MPEG2_AUDIO_ES 0x04
-#define AC3_AUDIO_ES 0x81
-/* 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
+#define UNKNOWN_ES 0x00
+#define VIDEO_ES 0x01
+#define AUDIO_ES 0x02
+#define SPU_ES 0x03
+#define NAV_ES 0x04
+
/*****************************************************************************
* pgrm_descriptor_t
*****************************************************************************
* Describes a program and list associated elementary streams. It is build by
* the PSI decoder upon the informations carried in program map sections
*****************************************************************************/
-typedef struct pgrm_descriptor_s
+struct pgrm_descriptor_t
{
/* Program characteristics */
- u16 i_number; /* program number */
- u8 i_version; /* version number */
- boolean_t b_is_ok; /* Is the description up to date ? */
+ uint16_t i_number; /* program number */
+ uint8_t i_version; /* version number */
+ vlc_bool_t b_is_ok; /* Is the description up to date ? */
/* Service Descriptor (program name) - DVB extension */
- u8 i_srv_type;
+ uint8_t i_srv_type;
char * psz_srv_name;
/* Synchronization information */
int i_synchro_state;
/* Demultiplexer data */
- void * p_demux_data;
+ pgrm_sys_t * p_demux_data;
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
*****************************************************************************
* Attributes for current area (title for DVD)
*****************************************************************************/
-typedef struct input_area_s
+struct input_area_t
{
/* selected area attributes */
int i_id; /* identificator for area */
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;
+};
+
+/**
+ * \brief A list of info items.
+ *
+ * Composes a linked list of name/value pairs intended to inform the
+ * user about the current stream
+ * \see input_AddInfo
+ */
+struct input_info_t {
+ /**
+ * Name of this item
+ */
+ char * psz_name;
+
+ /**
+ * Value of this item
+ */
+ char * psz_value;
+
+ /**
+ * Pointer to next item in list, or NULL it at end of list
+ */
+ input_info_t * p_next;
+};
+
+/**
+ * \brief A list of info categories.
+ *
+ * Composes a NULL terminated linked list of categories in which to
+ * place info about the stream.
+ *
+ * \see input_InfoCategory
+ */
+struct input_info_category_t {
+ /**
+ * The name of this category
+ */
+ char * psz_name;
+
+ /**
+ * first element of a linked list containing info items
+ */
+ input_info_t * p_info;
+
+ /**
+ * Pointer to next element in this list, or NULL if at end of list
+ */
+ input_info_category_t * p_next;
+};
/*****************************************************************************
- * stream_descriptor_t
+* stream_descriptor_t
*****************************************************************************
* Describes a stream and list its associated programs. Build upon
* the information carried in program association sections (for instance)
*****************************************************************************/
-typedef struct stream_descriptor_s
+struct stream_descriptor_t
{
- u16 i_stream_id; /* stream id */
- boolean_t b_changed; /* if stream has been changed,
+ uint16_t i_stream_id; /* stream id */
+ vlc_bool_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() ? */
+ vlc_bool_t b_pace_control; /* can we read when we want ? */
+ vlc_bool_t b_seekable; /* can we do lseek() ? */
/* if (b_seekable) : */
int i_area_nb;
input_area_t * p_new_area; /* Newly selected area from
* the interface */
- u32 i_mux_rate; /* the rate we read the stream (in
+ uint32_t 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 */
* status change request */
/* Demultiplexer data */
- void * p_demux_data;
+ stream_sys_t * p_demux_data;
/* Programs descriptions */
int i_pgrm_number; /* size of the following array */
pgrm_descriptor_t ** pp_programs; /* array of pointers to pgrm */
-
+ pgrm_descriptor_t * p_selected_program; /* currently
+ selected program */
+ pgrm_descriptor_t * p_new_program; /* Newly selected program */
/* ES descriptions */
int i_es_number;
es_descriptor_t ** pp_es; /* carried elementary streams */
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;
+ /* Optional stream output */
+ sout_instance_t * p_sout;
+
+ /* Input info */
+ input_info_category_t * p_info;
+
/* Statistics */
count_t c_packets_read; /* packets read */
count_t c_packets_trashed; /* trashed packets */
-} stream_descriptor_t;
+};
+
+/*****************************************************************************
+ * stream_position_t
+ *****************************************************************************
+ * Describes the current position in the stream.
+ *****************************************************************************/
+struct stream_position_t
+{
+ off_t i_tell; /* actual location in the area (in arbitrary units) */
+ off_t i_size; /* total size of the area (in arbitrary units) */
+
+ uint32_t i_mux_rate; /* the rate we read the stream (in
+ * units of 50 bytes/s) ; 0 if undef */
+};
#define MUTE_NO_CHANGE -1
*****************************************************************************
* This structure includes all the local static variables of an input thread
*****************************************************************************/
-struct vout_thread_s;
-struct bit_stream_s;
-
-typedef struct input_thread_s
+struct input_thread_t
{
- /* 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 */
-
- /* 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 * );
- void (* pf_init_bit_stream)( struct bit_stream_s *,
- struct decoder_fifo_s *,
- void (* pf_bitstream_callback)( struct bit_stream_s *,
- boolean_t ),
- void * );
-
- /* 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 * );
+ VLC_COMMON_MEMBERS
+
+ /* Thread properties */
+ vlc_bool_t b_eof;
+
+ /* Access module */
+ module_t * p_access;
+ ssize_t (* pf_read ) ( input_thread_t *, byte_t *, size_t );
+ int (* pf_set_program )( input_thread_t *, pgrm_descriptor_t * );
+ int (* pf_set_area )( input_thread_t *, input_area_t * );
+ void (* pf_seek ) ( input_thread_t *, off_t );
+ access_sys_t * p_access_data;
+ size_t i_mtu;
+
+ /* Demux module */
+ module_t * p_demux;
+ int (* pf_demux ) ( input_thread_t * );
+ int (* pf_rewind ) ( input_thread_t * );
/* NULL if we don't support going *
* backwards (it's gonna be fun) */
- void (* pf_seek)( struct input_thread_s *, off_t );
+ demux_sys_t * p_demux_data; /* data of the demux */
- char * p_source;
-
- int i_handle; /* socket or file descriptor */
- FILE * p_stream; /* if applicable */
- void * p_handle; /* if i_handle isn't suitable */
- 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 */
+ /* Buffer manager */
+ input_buffers_t *p_method_data; /* data of the packet manager */
+ data_buffer_t * p_data_buffer;
+ byte_t * p_current_data;
+ byte_t * p_last_data;
+ size_t i_bufsize;
/* General stream description */
- stream_descriptor_t stream; /* PAT tables */
+ stream_descriptor_t stream;
+
+ /* Playlist item */
+ char * psz_source;
+ char * psz_access;
+ char * psz_demux;
+ char * psz_name;
- count_t c_loops;
-} input_thread_t;
+ count_t c_loops;
+};
/* Input methods */
/* The first figure is a general method that can be used in interface plugins ;
#define INPUT_METHOD_MCAST 0x32 /* UDP multicast */
#define INPUT_METHOD_BCAST 0x33 /* UDP broadcast */
#define INPUT_METHOD_VLAN_BCAST 0x34 /* UDP broadcast with VLANs */
-
+#define INPUT_METHOD_SATELLITE 0x40 /* stream is read from a */
+ /* satellite card */
/* Status changing methods */
#define INPUT_STATUS_END 0
#define INPUT_STATUS_FASTER 3
#define INPUT_STATUS_SLOWER 4
+/* Seek modes */
+#define INPUT_SEEK_SET 0x00
+#define INPUT_SEEK_CUR 0x01
+#define INPUT_SEEK_END 0x02
+#define INPUT_SEEK_BYTES 0x00
+#define INPUT_SEEK_SECONDS 0x10
+#define INPUT_SEEK_PERCENT 0x20
+
/*****************************************************************************
* Prototypes
*****************************************************************************/
-struct input_thread_s * input_CreateThread ( struct playlist_item_s *,
- int *pi_status );
-void input_DestroyThread( struct input_thread_s *, int *pi_status );
-
-void input_SetStatus( 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( struct input_thread_s *, struct input_area_s * );
-int input_ToggleGrayscale( struct input_thread_s * );
-int input_ToggleMute( struct input_thread_s * );
-int input_SetSMP( struct input_thread_s *, int );
+#define input_CreateThread(a,b,c) __input_CreateThread(VLC_OBJECT(a),b,c)
+input_thread_t * __input_CreateThread ( vlc_object_t *,
+ playlist_item_t *, int * );
+void input_StopThread ( input_thread_t * );
+void input_DestroyThread ( input_thread_t * );
+
+#define input_SetStatus(a,b) __input_SetStatus(VLC_OBJECT(a),b)
+VLC_EXPORT( void, __input_SetStatus, ( vlc_object_t *, int ) );
+
+#define input_Seek(a,b,c) __input_Seek(VLC_OBJECT(a),b,c)
+VLC_EXPORT( void, __input_Seek, ( vlc_object_t *, off_t, int ) );
+
+#define input_Tell(a,b) __input_Tell(VLC_OBJECT(a),b)
+VLC_EXPORT( void, __input_Tell, ( vlc_object_t *, stream_position_t * ) );
+
+VLC_EXPORT( void, input_DumpStream, ( input_thread_t * ) );
+VLC_EXPORT( char *, input_OffsetToTime, ( input_thread_t *, char *, off_t ) );
+VLC_EXPORT( int, input_ToggleES, ( input_thread_t *, es_descriptor_t *, vlc_bool_t ) );
+VLC_EXPORT( int, input_ChangeArea, ( input_thread_t *, input_area_t * ) );
+VLC_EXPORT( int, input_ChangeProgram, ( input_thread_t *, uint16_t ) );
+
+int input_ToggleGrayscale( input_thread_t * );
+int input_ToggleMute ( input_thread_t * );
+#endif /* "input_ext-intf.h" */
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