initial commit, 4.5 stable

thirdparty/libtheora/apiwrapper.c

@@ -0,0 +1,166 @@
+/********************************************************************
+ *                                                                  *
+ * 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                      *
+ * https://www.xiph.org/                                            *
+ *                                                                  *
+ ********************************************************************
+
+  function:
+
+ ********************************************************************/
+
+#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);
+}