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 GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public
  19  * License along with this program; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Requires:
  26  *  "config.h"
  27  *  "common.h"
  28  *  "mtime.h"
  29  *  "threads.h"
  30  *  "input.h"
  31  *  "video.h"
  32  *  "video_output.h"
  33  *  "decoder_fifo.h"
  34  *****************************************************************************/
  35
  36 /*****************************************************************************
  37  * vdec_thread_t: video decoder thread descriptor
  38  *****************************************************************************
  39  * XXX??
  40  *****************************************************************************/
  41 typedef struct vdec_thread_s
  42 {
  43     /* Thread properties and locks */
  44     boolean_t           b_die;                                 /* `die' flag */
  45     boolean_t           b_run;                                 /* `run' flag */
  46     boolean_t           b_error;                             /* `error' flag */
  47     boolean_t           b_active;                           /* `active' flag */
  48     vlc_thread_t        thread_id;                /* id for thread functions */
  49
  50     /* Thread configuration */
  51     /* XXX?? */
  52 //    int *pi_status;
  53
  54 #ifdef OLD_DECODER
  55     /* Input properties */
  56     decoder_fifo_t      fifo;                              /* PES input fifo */
  57
  58     /* The bit stream structure handles the PES stream at the bit level */
  59     bit_stream_t        bit_stream;
  60
  61     /* Output properties */
  62     vout_thread_t *     p_vout;                       /* video output thread */
  63     int                 i_stream;                         /* video stream id */
  64 #else
  65     /* idct iformations */
  66     dctelem_t              p_pre_idct[64*64];
  67
  68     /* Input properties */
  69     struct vpar_thread_s *    p_vpar;                 /* video_parser thread */
  70
  71     /* Lookup tables */
  72 //#ifdef MPEG2_COMPLIANT
  73     u8              pi_crop_buf[VDEC_CROPRANGE];
  74     u8 *            pi_crop;
  75 //#endif
  76 #endif
  77
  78 #ifdef STATS
  79     /* Statistics */
  80     count_t         c_loops;                              /* number of loops */
  81     count_t         c_idle_loops;                    /* number of idle loops */
  82 #ifdef OLD_DECODER
  83     count_t         c_pictures;                   /* number of pictures read */
  84     count_t         c_i_pictures;               /* number of I pictures read */
  85     count_t         c_p_pictures;               /* number of P pictures read */
  86     count_t         c_b_pictures;               /* number of B pictures read */
  87 #endif
  88     count_t         c_decoded_pictures;        /* number of pictures decoded */
  89     count_t         c_decoded_i_pictures;    /* number of I pictures decoded */
  90     count_t         c_decoded_p_pictures;    /* number of P pictures decoded */
  91     count_t         c_decoded_b_pictures;    /* number of B pictures decoded */
  92 #endif
  93 } vdec_thread_t;
  94
  95 /*****************************************************************************
  96  * Prototypes
  97  *****************************************************************************/
  98 #ifndef OLD_DECODER
  99 struct vpar_thread_s;
 100 struct macroblock_s;
 101 #endif
 102
 103 /* Thread management functions */
 104 #ifdef OLD_DECODER
 105 p_vdec_thread_t  vdec_CreateThread       ( /* video_cfg_t *p_cfg, */ input_thread_t *p_input /*,
 106                                           vout_thread_t *p_vout, int *pi_status */ );
 107 void             vdec_DestroyThread      ( vdec_thread_t *p_vdec /*, int *pi_status */ );
 108 #else
 109 #ifndef VDEC_SMP
 110 int             vdec_InitThread         ( struct vdec_thread_s *p_vdec );
 111 void            vdec_DecodeMacroblock   ( struct vdec_thread_s *p_vdec, struct macroblock_s *p_mb );
 112 #endif
 113 vdec_thread_t * vdec_CreateThread       ( struct vpar_thread_s *p_vpar /*, int *pi_status */ );
 114 void vdec_DestroyThread      ( vdec_thread_t *p_vdec /*, int *pi_status */ );
 115 #endif