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-rw-r--r--media/libtheora/lib/apiwrapper.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/media/libtheora/lib/apiwrapper.c b/media/libtheora/lib/apiwrapper.c
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+++ b/media/libtheora/lib/apiwrapper.c
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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);
+}