libtheora: theoradec.h Source File

00001 /********************************************************************
00002  *                                                                  *
00003  * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
00004  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
00005  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
00006  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
00007  *                                                                  *
00008  * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2007                *
00009  * by the Xiph.Org Foundation http://www.xiph.org/                  *
00010  *                                                                  *
00011  ********************************************************************
00012 
00013   function:
00014   last mod: $Id: theora.h,v 1.8 2004/03/15 22:17:32 derf Exp $
00015 
00016  ********************************************************************/
00017 
00021 #if !defined(_O_THEORA_THEORADEC_H_)
00022 # define _O_THEORA_THEORADEC_H_ (1)
00023 # include <ogg/ogg.h>
00024 # include "codec.h"
00025 
00026 #if defined(__cplusplus)
00027 extern "C" {
00028 #endif
00029 
00030 
00031 
00045 #define TH_DECCTL_GET_PPLEVEL_MAX (1)
00046 
00058 #define TH_DECCTL_SET_PPLEVEL (3)
00059 
00070 #define TH_DECCTL_SET_GRANPOS (5)
00071 
00084 #define TH_DECCTL_SET_STRIPE_CB (7)
00085 
00120 typedef void (*th_stripe_decoded_func)(void *_ctx,th_ycbcr_buffer _buf,
00121  int _yfrag0,int _yfrag_end);
00122 
00124 typedef struct{
00127   void                   *ctx;
00129   th_stripe_decoded_func  stripe_decoded;
00130 }th_stripe_callback;
00131 
00132 
00133 
00141 typedef struct th_dec_ctx    th_dec_ctx;
00148 typedef struct th_setup_info th_setup_info;
00213 extern int th_decode_headerin(th_info *_info,th_comment *_tc,
00214  th_setup_info **_setup,ogg_packet *_op);
00221 extern th_dec_ctx *th_decode_alloc(const th_info *_info,
00222  const th_setup_info *_setup);
00228 extern void th_setup_free(th_setup_info *_setup);
00237 extern int th_decode_ctl(th_dec_ctx *_dec,int _req,void *_buf,
00238  size_t _buf_sz);
00260 extern int th_decode_packetin(th_dec_ctx *_dec,const ogg_packet *_op,
00261  ogg_int64_t *_granpos);
00276 extern int th_decode_ycbcr_out(th_dec_ctx *_dec,
00277  th_ycbcr_buffer _ycbcr);
00280 extern void th_decode_free(th_dec_ctx *_dec);
00283 
00284 
00285 
00286 #if defined(__cplusplus)
00287 }
00288 #endif
00289 
00290 #endif