git.sesse.net Git - vlc/blob - include/video_parser.h

   1 /*******************************************************************************
   2  * video_parser.h : video parser thread
   3  * (c)1999 VideoLAN
   4  *******************************************************************************
   5  *******************************************************************************
   6  * Requires:
   7  *  "config.h"
   8  *  "common.h"
   9  *  "mtime.h"
  10  *  "vlc_thread.h"
  11  *  "input.h"
  12  *  "video.h"
  13  *  "video_output.h"
  14  *  "decoder_fifo.h"
  15  *  "video_fifo.h"
  16  *******************************************************************************/
  17
  18 /*******************************************************************************
  19  * sequence_t : sequence descriptor
  20  *******************************************************************************
  21  * ??
  22  *******************************************************************************/
  23 typedef struct sequence_s
  24 {
  25     u32                 i_height, i_width;
  26     unsigned int        i_aspect_ratio;
  27     double              frame_rate;
  28 } sequence_t;
  29
  30 /*******************************************************************************
  31  * vpar_thread_t: video parser thread descriptor
  32  *******************************************************************************
  33  * ??
  34  *******************************************************************************/
  35 typedef struct vpar_thread_s
  36 {
  37     /* Thread properties and locks */
  38     boolean_t           b_die;                                   /* `die' flag */
  39     boolean_t           b_run;                                   /* `run' flag */
  40     boolean_t           b_error;                               /* `error' flag */
  41     boolean_t           b_active;                             /* `active' flag */
  42     vlc_thread_t        thread_id;                  /* id for thread functions */
  43
  44     /* Thread configuration */
  45     /* ?? */
  46  /*??*/
  47 //    int *pi_status;
  48
  49
  50     /* Input properties */
  51     decoder_fifo_t      fifo;                                /* PES input fifo */
  52
  53     /* The bit stream structure handles the PES stream at the bit level */
  54     bit_stream_t        bit_stream;
  55
  56     /* Output properties */
  57     vout_thread_t *     p_vout;                         /* video output thread */
  58     int                 i_stream;                           /* video stream id */
  59
  60     /* Decoder properties */
  61     struct vdec_thread_s *      p_vdec[MAX_VDEC];
  62     video_fifo_t                vfifo;
  63     video_buffer_t              vbuffer;
  64
  65     /* Parser properties */
  66     sequence_t          sequence;
  67
  68 #ifdef STATS
  69     /* Statistics */
  70     count_t         c_loops;                               /* number of loops */
  71     count_t         c_idle_loops;                     /* number of idle loops */
  72     count_t         c_sequences;                       /* number of sequences */
  73     count_t         c_pictures;                    /* number of pictures read */
  74     count_t         c_i_pictures;                /* number of I pictures read */
  75     count_t         c_p_pictures;                /* number of P pictures read */
  76     count_t         c_b_pictures;                /* number of B pictures read */
  77     count_t         c_decoded_pictures;         /* number of pictures decoded */
  78     count_t         c_decoded_i_pictures;     /* number of I pictures decoded */
  79     count_t         c_decoded_p_pictures;     /* number of P pictures decoded */
  80     count_t         c_decoded_b_pictures;     /* number of B pictures decoded */
  81 #endif
  82 } vpar_thread_t;
  83
  84 /*******************************************************************************
  85  * Standard start codes
  86  *******************************************************************************/
  87 #define PICTURE_START_CODE      0x100
  88 #define SLICE_START_CODE_MIN    0x101
  89 #define SLICE_START_CODE_MAX    0x1AF
  90 #define USER_DATA_START_CODE    0x1B2
  91 #define SEQUENCE_HEADER_CODE    0x1B3
  92 #define SEQUENCE_ERROR_CODE     0x1B4
  93 #define EXTENSION_START_CODE    0x1B5
  94 #define SEQUENCE_END_CODE       0x1B7
  95 #define GROUP_START_CODE        0x1B8
  96
  97 /*******************************************************************************
  98  * Prototypes
  99  *******************************************************************************/
 100
 101 /* Thread management functions */
 102 vpar_thread_t * vpar_CreateThread       ( /* video_cfg_t *p_cfg, */ input_thread_t *p_input /*,
 103                                           vout_thread_t *p_vout, int *pi_status */ );
 104 void            vpar_DestroyThread      ( vpar_thread_t *p_vpar /*, int *pi_status */ );
 105
 106 /* Time management functions */
 107 /* ?? */
 108
 109 /* Dynamic thread settings */
 110 /* ?? */