[svn] / branches / dev-api-4 / xvidcore / src / plugins / plugin_2pass1.c Repository:
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revision 977, Tue Apr 8 14:01:35 2003 UTC revision 1105, Tue Jul 29 23:02:34 2003 UTC
# Line 3  Line 3 
3   * XviD Bit Rate Controller Library   * XviD Bit Rate Controller Library
4   * - VBR 2 pass bitrate controler implementation -   * - VBR 2 pass bitrate controler implementation -
5   *   *
6   * Copyright (C) 2002 Edouard Gomez <ed.gomez@wanadoo.fr>   *  Copyright (C) 2002-2003 Edouard Gomez <ed.gomez@free.fr>
7   *   *
8   * The curve treatment algorithm is the one implemented by Foxer <email?> and   * The curve treatment algorithm is the one implemented by Foxer <email?> and
9   * Dirk Knop <dknop@gwdg.de> for the XviD vfw dynamic library.   * Dirk Knop <dknop@gwdg.de> for the XviD vfw dynamic library.
# Line 22  Line 22 
22   * along with this program; if not, write to the Free Software   * along with this program; if not, write to the Free Software
23   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
24   *   *
25   * $Id: plugin_2pass1.c,v 1.1.2.2 2003-04-08 14:01:09 suxen_drol Exp $   * $Id: plugin_2pass1.c,v 1.1.2.6 2003-07-29 23:02:34 edgomez Exp $
26   *   *
27   *****************************************************************************/   *****************************************************************************/
28    
# Line 36  Line 36 
36  typedef struct  typedef struct
37  {  {
38          FILE * stat_file;          FILE * stat_file;
39    
40        double fq_error;
41  } rc_2pass1_t;  } rc_2pass1_t;
42    
43    
# Line 46  Line 48 
48          rc_2pass1_t * rc;          rc_2pass1_t * rc;
49    
50      /* check filename */      /* check filename */
51      if (param->filename == NULL || param->filename[0] == '\0')      if ((param->filename == NULL) ||
52                    (param->filename != NULL && param->filename[0] == '\0'))
53          return XVID_ERR_FAIL;          return XVID_ERR_FAIL;
54    
55      /* allocate context struct */      /* allocate context struct */
# Line 63  Line 66 
66          /*          /*
67           * The File Header           * The File Header
68           */           */
69          /* fprintf(rc->stat_file, "# XviD 2pass stat file\n");  #if 0
70            fprintf(rc->stat_file, "# XviD 2pass stat file\n");
71      fprintf(rc->stat_file, "version %i.%i.%i\n",XVID_MAJOR(XVID_VERSION), XVID_MINOR(XVID_VERSION), XVID_PATCH(XVID_VERSION));      fprintf(rc->stat_file, "version %i.%i.%i\n",XVID_MAJOR(XVID_VERSION), XVID_MINOR(XVID_VERSION), XVID_PATCH(XVID_VERSION));
72          fprintf(rc->stat_file, "start\n");          fprintf(rc->stat_file, "start\n");
73      fprintf(rc->stat_file, "type quantizer length kblocks mblocks ublocks\n");  */      fprintf(rc->stat_file, "type quantizer length kblocks mblocks ublocks\n");
74    #endif
75    
76        rc->fq_error = 0;
77    
78      *handle = rc;      *handle = rc;
79          return(0);          return(0);
# Line 75  Line 82 
82    
83  static int rc_2pass1_destroy(rc_2pass1_t * rc, xvid_plg_destroy_t * destroy)  static int rc_2pass1_destroy(rc_2pass1_t * rc, xvid_plg_destroy_t * destroy)
84  {  {
     //fprintf(rc->stat_file, "stop\n");  
85          fclose(rc->stat_file);          fclose(rc->stat_file);
86    
87          free(rc);          free(rc);
# Line 85  Line 91 
91    
92  static int rc_2pass1_before(rc_2pass1_t * rc, xvid_plg_data_t * data)  static int rc_2pass1_before(rc_2pass1_t * rc, xvid_plg_data_t * data)
93  {  {
94         if (data->quant <= 0) {
95            if (data->zone && data->zone->mode == XVID_ZONE_QUANT) {
96                rc->fq_error += (double)data->zone->increment / (double)data->zone->base;
97                data->quant = (int)rc->fq_error;
98                rc->fq_error -= data->quant;
99    
100            }else {
101      data->quant = 2;      data->quant = 2;
102      data->type = XVID_TYPE_AUTO;          }
103        }
104      return 0;      return 0;
105  }  }
106    
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