summaryrefslogtreecommitdiffstats
path: root/media/libtheora/lib/apiwrapper.c
blob: dc959b8d13aeee2114243adcddea40b0e8ea9a9f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
/********************************************************************
 *                                                                  *
 * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
 *                                                                  *
 * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009                *
 * by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
 *                                                                  *
 ********************************************************************

  function:
    last mod: $Id: apiwrapper.c 16503 2009-08-22 18:14:02Z giles $

 ********************************************************************/

#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "apiwrapper.h"



const char *theora_version_string(void){
  return th_version_string();
}

ogg_uint32_t theora_version_number(void){
  return th_version_number();
}

void theora_info_init(theora_info *_ci){
  memset(_ci,0,sizeof(*_ci));
}

void theora_info_clear(theora_info *_ci){
  th_api_wrapper *api;
  api=(th_api_wrapper *)_ci->codec_setup;
  memset(_ci,0,sizeof(*_ci));
  if(api!=NULL){
    if(api->clear!=NULL)(*api->clear)(api);
    _ogg_free(api);
  }
}

void theora_clear(theora_state *_th){
  /*Provide compatibility with mixed encoder and decoder shared lib versions.*/
  if(_th->internal_decode!=NULL){
    (*((oc_state_dispatch_vtable *)_th->internal_decode)->clear)(_th);
  }
  if(_th->internal_encode!=NULL){
    (*((oc_state_dispatch_vtable *)_th->internal_encode)->clear)(_th);
  }
  if(_th->i!=NULL)theora_info_clear(_th->i);
  memset(_th,0,sizeof(*_th));
}

int theora_control(theora_state *_th,int _req,void *_buf,size_t _buf_sz){
  /*Provide compatibility with mixed encoder and decoder shared lib versions.*/
  if(_th->internal_decode!=NULL){
    return (*((oc_state_dispatch_vtable *)_th->internal_decode)->control)(_th,
     _req,_buf,_buf_sz);
  }
  else if(_th->internal_encode!=NULL){
    return (*((oc_state_dispatch_vtable *)_th->internal_encode)->control)(_th,
     _req,_buf,_buf_sz);
  }
  else return TH_EINVAL;
}

ogg_int64_t theora_granule_frame(theora_state *_th,ogg_int64_t _gp){
  /*Provide compatibility with mixed encoder and decoder shared lib versions.*/
  if(_th->internal_decode!=NULL){
    return (*((oc_state_dispatch_vtable *)_th->internal_decode)->granule_frame)(
     _th,_gp);
  }
  else if(_th->internal_encode!=NULL){
    return (*((oc_state_dispatch_vtable *)_th->internal_encode)->granule_frame)(
     _th,_gp);
  }
  else return -1;
}

double theora_granule_time(theora_state *_th, ogg_int64_t _gp){
  /*Provide compatibility with mixed encoder and decoder shared lib versions.*/
  if(_th->internal_decode!=NULL){
    return (*((oc_state_dispatch_vtable *)_th->internal_decode)->granule_time)(
     _th,_gp);
  }
  else if(_th->internal_encode!=NULL){
    return (*((oc_state_dispatch_vtable *)_th->internal_encode)->granule_time)(
     _th,_gp);
  }
  else return -1;
}

void oc_theora_info2th_info(th_info *_info,const theora_info *_ci){
  _info->version_major=_ci->version_major;
  _info->version_minor=_ci->version_minor;
  _info->version_subminor=_ci->version_subminor;
  _info->frame_width=_ci->width;
  _info->frame_height=_ci->height;
  _info->pic_width=_ci->frame_width;
  _info->pic_height=_ci->frame_height;
  _info->pic_x=_ci->offset_x;
  _info->pic_y=_ci->offset_y;
  _info->fps_numerator=_ci->fps_numerator;
  _info->fps_denominator=_ci->fps_denominator;
  _info->aspect_numerator=_ci->aspect_numerator;
  _info->aspect_denominator=_ci->aspect_denominator;
  switch(_ci->colorspace){
    case OC_CS_ITU_REC_470M:_info->colorspace=TH_CS_ITU_REC_470M;break;
    case OC_CS_ITU_REC_470BG:_info->colorspace=TH_CS_ITU_REC_470BG;break;
    default:_info->colorspace=TH_CS_UNSPECIFIED;break;
  }
  switch(_ci->pixelformat){
    case OC_PF_420:_info->pixel_fmt=TH_PF_420;break;
    case OC_PF_422:_info->pixel_fmt=TH_PF_422;break;
    case OC_PF_444:_info->pixel_fmt=TH_PF_444;break;
    default:_info->pixel_fmt=TH_PF_RSVD;
  }
  _info->target_bitrate=_ci->target_bitrate;
  _info->quality=_ci->quality;
  _info->keyframe_granule_shift=_ci->keyframe_frequency_force>0?
   OC_MINI(31,oc_ilog(_ci->keyframe_frequency_force-1)):0;
}

int theora_packet_isheader(ogg_packet *_op){
  return th_packet_isheader(_op);
}

int theora_packet_iskeyframe(ogg_packet *_op){
  return th_packet_iskeyframe(_op);
}

int theora_granule_shift(theora_info *_ci){
  /*This breaks when keyframe_frequency_force is not positive or is larger than
     2**31 (if your int is more than 32 bits), but that's what the original
     function does.*/
  return oc_ilog(_ci->keyframe_frequency_force-1);
}

void theora_comment_init(theora_comment *_tc){
  th_comment_init((th_comment *)_tc);
}

char *theora_comment_query(theora_comment *_tc,char *_tag,int _count){
  return th_comment_query((th_comment *)_tc,_tag,_count);
}

int theora_comment_query_count(theora_comment *_tc,char *_tag){
  return th_comment_query_count((th_comment *)_tc,_tag);
}

void theora_comment_clear(theora_comment *_tc){
  th_comment_clear((th_comment *)_tc);
}

void theora_comment_add(theora_comment *_tc,char *_comment){
  th_comment_add((th_comment *)_tc,_comment);
}

void theora_comment_add_tag(theora_comment *_tc, char *_tag, char *_value){
  th_comment_add_tag((th_comment *)_tc,_tag,_value);
}