git.sesse.net Git - vlc/blob - src/input/input.h

   1 /* Communication plugin -> input */
   2
   3 #define INPUT_READ_ONCE     7   /* We live in a world dominated by Ethernet. *
   4                                  * Ethernet MTU is 1500 bytes, so in a UDP   *
   5                                  * packet we can put : 1500/188 = 7 TS       *
   6                                  * packets. Have a nice day and merry Xmas.  */
   7
   8 /*****************************************************************************
   9  * input_capabilities_t
  10  *****************************************************************************
  11  * This structure gives pointers to the useful methods of the plugin
  12  *****************************************************************************/
  13 typedef struct input_capabilities_s
  14 {
  15     /* Plugin properties */
  16     int                     i_weight; /* for a given stream type, the plugin *
  17                                        * with higher weight will be used     */
  18
  19     /* Init/End */
  20     int                  (* pf_probe)( struct input_thread_s * );
  21     void                 (* pf_init)( struct input_thread_s * );
  22     void                 (* pf_end)( struct input_thread_s * );
  23
  24     /* Read & Demultiplex */
  25     void                 (* pf_read)( struct input_thread_s *,
  26                           struct data_packet_s * pp_packets[INPUT_READ_ONCE] );
  27     void                 (* pf_demux)( struct input_thread_s *,
  28                                        struct data_packet_s * );
  29
  30     /* Packet management facilities */
  31     struct data_packet_s *(* pf_new_packet)( void *, size_t );
  32     struct pes_packet_s *(* pf_new_pes)( void * );
  33     void                 (* pf_delete_packet)( void *,
  34                                                struct data_packet_s * );
  35     void                 (* pf_delete_pes)( void *, struct pes_packet_s * );
  36
  37     /* Stream control capabilities */
  38     int                  (* pf_rewind)( struct input_thread_s * );
  39                                            /* NULL if we don't support going *
  40                                             * backwards (it's gonna be fun)  */
  41     int                  (* pf_seek)( struct input_thread_s *, off_t );
  42 } input_capabilities_t;
  43
  44 /*****************************************************************************
  45  * Prototypes from input_ext-dec.c
  46  *****************************************************************************/
  47 void InitBitstream  ( struct bit_stream_s *, struct decoder_fifo_s * );
  48 void NextDataPacket ( struct bit_stream_s * );
  49
  50 /*****************************************************************************
  51  * Prototypes from input_programs.c
  52  *****************************************************************************/
  53 void input_InitStream( struct input_thread_s *, size_t );
  54 struct pgrm_descriptor_s * input_AddProgram( struct input_thread_s *,
  55                                              u16, size_t );
  56 void input_DelProgram( struct input_thread_s *, u16 );
  57 struct es_descriptor_s * input_AddES( struct input_thread_s *,
  58                                       struct pgrm_descriptor_s *, u16,
  59                                       size_t );
  60 void input_DelES( struct input_thread_s *, u16 );
  61 int input_SelectES( struct input_thread_s *, struct es_descriptor_s * );
  62