libtheora  1.1.1
theoradec.h
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1 /********************************************************************
2  * *
3  * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
5  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
6  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
7  * *
8  * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
9  * by the Xiph.Org Foundation http://www.xiph.org/ *
10  * *
11  ********************************************************************
12 
13  function:
14  last mod: $Id: theora.h,v 1.8 2004/03/15 22:17:32 derf Exp $
15 
16  ********************************************************************/
17 
21 #if !defined(_O_THEORA_THEORADEC_H_)
22 # define _O_THEORA_THEORADEC_H_ (1)
23 # include <stddef.h>
24 # include <ogg/ogg.h>
25 # include "codec.h"
26 
27 #if defined(__cplusplus)
28 extern "C" {
29 #endif
30 
31 
32 
50 #define TH_DECCTL_GET_PPLEVEL_MAX (1)
51 
67 #define TH_DECCTL_SET_PPLEVEL (3)
68 
79 #define TH_DECCTL_SET_GRANPOS (5)
80 
93 #define TH_DECCTL_SET_STRIPE_CB (7)
94 
96 #define TH_DECCTL_SET_TELEMETRY_MBMODE (9)
97 
98 #define TH_DECCTL_SET_TELEMETRY_MV (11)
99 
100 #define TH_DECCTL_SET_TELEMETRY_QI (13)
101 
102 #define TH_DECCTL_SET_TELEMETRY_BITS (15)
103 
138 typedef void (*th_stripe_decoded_func)(void *_ctx,th_ycbcr_buffer _buf,
139  int _yfrag0,int _yfrag_end);
140 
142 typedef struct{
145  void *ctx;
149 
150 
151 
159 typedef struct th_dec_ctx th_dec_ctx;
231 extern int th_decode_headerin(th_info *_info,th_comment *_tc,
232  th_setup_info **_setup,ogg_packet *_op);
255 extern th_dec_ctx *th_decode_alloc(const th_info *_info,
256  const th_setup_info *_setup);
262 extern void th_setup_free(th_setup_info *_setup);
271 extern int th_decode_ctl(th_dec_ctx *_dec,int _req,void *_buf,
272  size_t _buf_sz);
294 extern int th_decode_packetin(th_dec_ctx *_dec,const ogg_packet *_op,
295  ogg_int64_t *_granpos);
311 extern int th_decode_ycbcr_out(th_dec_ctx *_dec,
312  th_ycbcr_buffer _ycbcr);
315 extern void th_decode_free(th_dec_ctx *_dec);
318 
319 
320 
321 #if defined(__cplusplus)
322 }
323 #endif
324 
325 #endif
Theora bitstream information.
Definition: codec.h:204
The comment information.
Definition: codec.h:323
void(* th_stripe_decoded_func)(void *_ctx, th_ycbcr_buffer _buf, int _yfrag0, int _yfrag_end)
A callback function for striped decode.
Definition: theoradec.h:138
th_dec_ctx * th_decode_alloc(const th_info *_info, const th_setup_info *_setup)
Allocates a decoder instance.
The shared libtheoradec and libtheoraenc C API.
int th_decode_ctl(th_dec_ctx *_dec, int _req, void *_buf, size_t _buf_sz)
Decoder control function.
void th_decode_free(th_dec_ctx *_dec)
Frees an allocated decoder instance.
void * ctx
An application-provided context pointer.
Definition: theoradec.h:145
void th_setup_free(th_setup_info *_setup)
Releases all storage used for the decoder setup information.
struct th_setup_info th_setup_info
Setup information.
Definition: theoradec.h:166
th_img_plane th_ycbcr_buffer[3]
A complete image buffer for an uncompressed frame.
Definition: codec.h:168
int th_decode_ycbcr_out(th_dec_ctx *_dec, th_ycbcr_buffer _ycbcr)
Outputs the next available frame of decoded Y&#39;CbCr data.
th_stripe_decoded_func stripe_decoded
The callback function pointer.
Definition: theoradec.h:147
int th_decode_headerin(th_info *_info, th_comment *_tc, th_setup_info **_setup, ogg_packet *_op)
Decodes the header packets of a Theora stream.
struct th_dec_ctx th_dec_ctx
The decoder context.
Definition: theoradec.h:159
int th_decode_packetin(th_dec_ctx *_dec, const ogg_packet *_op, ogg_int64_t *_granpos)
Submits a packet containing encoded video data to the decoder.
The striped decode callback data to pass to TH_DECCTL_SET_STRIPE_CB.
Definition: theoradec.h:142