mirror of
https://github.com/godotengine/godot
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167 lines
5.4 KiB
C
167 lines
5.4 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
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* by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
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* *
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********************************************************************
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function:
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last mod: $Id$
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********************************************************************/
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include "apiwrapper.h"
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const char *theora_version_string(void){
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return th_version_string();
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}
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ogg_uint32_t theora_version_number(void){
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return th_version_number();
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}
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void theora_info_init(theora_info *_ci){
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memset(_ci,0,sizeof(*_ci));
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}
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void theora_info_clear(theora_info *_ci){
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th_api_wrapper *api;
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api=(th_api_wrapper *)_ci->codec_setup;
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memset(_ci,0,sizeof(*_ci));
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if(api!=NULL){
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if(api->clear!=NULL)(*api->clear)(api);
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_ogg_free(api);
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}
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}
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void theora_clear(theora_state *_th){
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/*Provide compatibility with mixed encoder and decoder shared lib versions.*/
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if(_th->internal_decode!=NULL){
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(*((oc_state_dispatch_vtable *)_th->internal_decode)->clear)(_th);
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}
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if(_th->internal_encode!=NULL){
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(*((oc_state_dispatch_vtable *)_th->internal_encode)->clear)(_th);
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}
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if(_th->i!=NULL)theora_info_clear(_th->i);
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memset(_th,0,sizeof(*_th));
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}
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int theora_control(theora_state *_th,int _req,void *_buf,size_t _buf_sz){
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/*Provide compatibility with mixed encoder and decoder shared lib versions.*/
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if(_th->internal_decode!=NULL){
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return (*((oc_state_dispatch_vtable *)_th->internal_decode)->control)(_th,
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_req,_buf,_buf_sz);
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}
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else if(_th->internal_encode!=NULL){
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return (*((oc_state_dispatch_vtable *)_th->internal_encode)->control)(_th,
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_req,_buf,_buf_sz);
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}
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else return TH_EINVAL;
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}
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ogg_int64_t theora_granule_frame(theora_state *_th,ogg_int64_t _gp){
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/*Provide compatibility with mixed encoder and decoder shared lib versions.*/
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if(_th->internal_decode!=NULL){
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return (*((oc_state_dispatch_vtable *)_th->internal_decode)->granule_frame)(
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_th,_gp);
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}
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else if(_th->internal_encode!=NULL){
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return (*((oc_state_dispatch_vtable *)_th->internal_encode)->granule_frame)(
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_th,_gp);
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}
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else return -1;
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}
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double theora_granule_time(theora_state *_th, ogg_int64_t _gp){
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/*Provide compatibility with mixed encoder and decoder shared lib versions.*/
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if(_th->internal_decode!=NULL){
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return (*((oc_state_dispatch_vtable *)_th->internal_decode)->granule_time)(
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_th,_gp);
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}
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else if(_th->internal_encode!=NULL){
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return (*((oc_state_dispatch_vtable *)_th->internal_encode)->granule_time)(
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_th,_gp);
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}
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else return -1;
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}
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void oc_theora_info2th_info(th_info *_info,const theora_info *_ci){
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_info->version_major=_ci->version_major;
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_info->version_minor=_ci->version_minor;
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_info->version_subminor=_ci->version_subminor;
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_info->frame_width=_ci->width;
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_info->frame_height=_ci->height;
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_info->pic_width=_ci->frame_width;
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_info->pic_height=_ci->frame_height;
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_info->pic_x=_ci->offset_x;
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_info->pic_y=_ci->offset_y;
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_info->fps_numerator=_ci->fps_numerator;
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_info->fps_denominator=_ci->fps_denominator;
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_info->aspect_numerator=_ci->aspect_numerator;
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_info->aspect_denominator=_ci->aspect_denominator;
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switch(_ci->colorspace){
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case OC_CS_ITU_REC_470M:_info->colorspace=TH_CS_ITU_REC_470M;break;
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case OC_CS_ITU_REC_470BG:_info->colorspace=TH_CS_ITU_REC_470BG;break;
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default:_info->colorspace=TH_CS_UNSPECIFIED;break;
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}
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switch(_ci->pixelformat){
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case OC_PF_420:_info->pixel_fmt=TH_PF_420;break;
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case OC_PF_422:_info->pixel_fmt=TH_PF_422;break;
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case OC_PF_444:_info->pixel_fmt=TH_PF_444;break;
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default:_info->pixel_fmt=TH_PF_RSVD;
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}
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_info->target_bitrate=_ci->target_bitrate;
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_info->quality=_ci->quality;
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_info->keyframe_granule_shift=_ci->keyframe_frequency_force>0?
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OC_MINI(31,oc_ilog(_ci->keyframe_frequency_force-1)):0;
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}
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int theora_packet_isheader(ogg_packet *_op){
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return th_packet_isheader(_op);
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}
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int theora_packet_iskeyframe(ogg_packet *_op){
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return th_packet_iskeyframe(_op);
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}
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int theora_granule_shift(theora_info *_ci){
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/*This breaks when keyframe_frequency_force is not positive or is larger than
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2**31 (if your int is more than 32 bits), but that's what the original
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function does.*/
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return oc_ilog(_ci->keyframe_frequency_force-1);
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}
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void theora_comment_init(theora_comment *_tc){
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th_comment_init((th_comment *)_tc);
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}
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char *theora_comment_query(theora_comment *_tc,char *_tag,int _count){
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return th_comment_query((th_comment *)_tc,_tag,_count);
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}
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int theora_comment_query_count(theora_comment *_tc,char *_tag){
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return th_comment_query_count((th_comment *)_tc,_tag);
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}
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void theora_comment_clear(theora_comment *_tc){
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th_comment_clear((th_comment *)_tc);
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}
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void theora_comment_add(theora_comment *_tc,char *_comment){
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th_comment_add((th_comment *)_tc,_comment);
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}
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void theora_comment_add_tag(theora_comment *_tc, char *_tag, char *_value){
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th_comment_add_tag((th_comment *)_tc,_tag,_value);
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}
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