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

   1 /*****************************************************************************
   2  * video_decoder.h : video decoder thread
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000 VideoLAN
   5  *
   6  * Authors:
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Requires:
  25  *  "config.h"
  26  *  "common.h"
  27  *  "mtime.h"
  28  *  "threads.h"
  29  *  "input.h"
  30  *  "video.h"
  31  *  "video_output.h"
  32  *  "decoder_fifo.h"
  33  *****************************************************************************/
  34
  35 /*****************************************************************************
  36  * vdec_thread_t: video decoder thread descriptor
  37  *****************************************************************************
  38  * XXX??
  39  *****************************************************************************/
  40 typedef struct vdec_thread_s
  41 {
  42     /* Thread properties and locks */
  43     boolean_t           b_die;                                 /* `die' flag */
  44     boolean_t           b_run;                                 /* `run' flag */
  45     boolean_t           b_error;                             /* `error' flag */
  46     boolean_t           b_active;                           /* `active' flag */
  47     vlc_thread_t        thread_id;                /* id for thread functions */
  48
  49     /* Thread configuration */
  50     /* XXX?? */
  51 //    int *pi_status;
  52
  53 #ifdef OLD_DECODER
  54     /* Input properties */
  55     decoder_fifo_t      fifo;                              /* PES input fifo */
  56
  57     /* The bit stream structure handles the PES stream at the bit level */
  58     bit_stream_t        bit_stream;
  59
  60     /* Output properties */
  61     vout_thread_t *     p_vout;                       /* video output thread */
  62     int                 i_stream;                         /* video stream id */
  63 #else
  64     /* idct iformations */
  65     dctelem_t              p_pre_idct[64*64];
  66
  67     /* Input properties */
  68     struct vpar_thread_s *    p_vpar;                 /* video_parser thread */
  69
  70     /* Lookup tables */
  71 //#ifdef MPEG2_COMPLIANT
  72     u8              pi_crop_buf[VDEC_CROPRANGE];
  73     u8 *            pi_crop;
  74 //#endif
  75 #endif
  76
  77 #ifdef STATS
  78     /* Statistics */
  79     count_t         c_loops;                              /* number of loops */
  80     count_t         c_idle_loops;                    /* number of idle loops */
  81 #ifdef OLD_DECODER
  82     count_t         c_pictures;                   /* number of pictures read */
  83     count_t         c_i_pictures;               /* number of I pictures read */
  84     count_t         c_p_pictures;               /* number of P pictures read */
  85     count_t         c_b_pictures;               /* number of B pictures read */
  86 #endif
  87     count_t         c_decoded_pictures;        /* number of pictures decoded */
  88     count_t         c_decoded_i_pictures;    /* number of I pictures decoded */
  89     count_t         c_decoded_p_pictures;    /* number of P pictures decoded */
  90     count_t         c_decoded_b_pictures;    /* number of B pictures decoded */
  91 #endif
  92 } vdec_thread_t;
  93
  94 /*****************************************************************************
  95  * Prototypes
  96  *****************************************************************************/
  97 #ifndef OLD_DECODER
  98 struct vpar_thread_s;
  99 struct macroblock_s;
 100 #endif
 101
 102 /* Thread management functions */
 103 #ifdef OLD_DECODER
 104 p_vdec_thread_t  vdec_CreateThread       ( /* video_cfg_t *p_cfg, */ input_thread_t *p_input /*,
 105                                           vout_thread_t *p_vout, int *pi_status */ );
 106 void             vdec_DestroyThread      ( vdec_thread_t *p_vdec /*, int *pi_status */ );
 107 #else
 108 #ifndef VDEC_SMP
 109 int             vdec_InitThread         ( struct vdec_thread_s *p_vdec );
 110 void            vdec_DecodeMacroblock   ( struct vdec_thread_s *p_vdec, struct macroblock_s *p_mb );
 111 #endif
 112 vdec_thread_t * vdec_CreateThread       ( struct vpar_thread_s *p_vpar /*, int *pi_status */ );
 113 void vdec_DestroyThread      ( vdec_thread_t *p_vdec /*, int *pi_status */ );
 114 #endif