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/********************************************************************
* *
* 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);
}
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