/usr/include/gpac/scene_engine.h is in libgpac-dev 0.5.0+svn4288~dfsg1-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | /*
* GPAC Multimedia Framework
*
* Authors: Cyril Concolato - Jean le Feuvre
* Copyright (c) Telecom ParisTech 2005-2012
* All rights reserved
*
* This file is part of GPAC
*
* GPAC is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GPAC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _GF_SCENEENGINE_H_
#define _GF_SCENEENGINE_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <gpac/scene_manager.h>
#ifndef GPAC_DISABLE_SENG
typedef struct __tag_scene_engine GF_SceneEngine;
typedef void (*gf_seng_callback)(void *udta, u16 ESID, char *data, u32 size, u64 ts);
/**
* @calling_object is the calling object on which call back will be called
* @inputContext is the name of a scene file (bt, xmt or mp4) to initialize the coding context
* @load_type is the prefered loader type for the content (e.g. SVG vs DIMS)
* @dump_path is the path where scenes are dumped
* @embed_resources indicates if images and scripts should be encoded inlined with the content
*
* must be called only one time (by process calling the DLL) before other calls
*/
GF_SceneEngine *gf_seng_init(void *calling_object, char *inputContext, u32 load_type, char *dump_path, Bool embed_resources);
/**
* @calling_object is the calling object on which call back will be called
* @inputContext is an UTF-8 scene description (with or without IOD) in BT or XMT-A format
* @load_type is the prefered loader type for the content (e.g. SVG vs DIMS)
* @width, @height: width and height of scene if no IOD is given in the context.
* @usePixelMetrics: metrics system used in the scene, if no IOD is given in the context.
* @dump_path is the path where scenes are dumped
*
* must be called only one time (by process calling the DLL) before other calls
*/
GF_SceneEngine *gf_seng_init_from_string(void *calling_object, char *inputContext, u32 load_type, u32 width, u32 height, Bool usePixelMetrics, char *dump_path);
/**
* @calling_object is the calling object on which call back will be called
* @ctx is an already loaded scene manager
* @dump_path is the path where scenes are dumped
*
* must be called only one time (by process calling the DLL) before other calls
*/
GF_SceneEngine *gf_seng_init_from_context(void *calling_object, GF_SceneManager *ctx, char *dump_path);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
*
* must be called after gf_seng_init()
*/
u32 gf_seng_get_stream_count(GF_SceneEngine *seng);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @ESID, ID of the stream
* @carousel_period: pointer to store the carousel_period
* @aggregate_on_es_id: pointer to store the target carousel stream ID
*
* must be called after gf_seng_init()
*/
GF_Err gf_seng_get_stream_carousel_info(GF_SceneEngine *seng, u16 ESID, u32 *carousel_period, u16 *aggregate_on_es_id);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @idx: stream index
* @ESID: pointer to the stream ID
* @config: pointer to the encoded BIFS config (memory is not allocated)
* @config_len: length of the buffer
* @streamType: pointer to get stream type
* @objectType: pointer to get object type
* @timeScale: pointer to get time scale
*
* must be called after gf_seng_init()
*/
GF_Err gf_seng_get_stream_config(GF_SceneEngine *seng, u32 idx, u16 *ESID, char * * const config, u32 *config_len, u32 *streamType, u32 *objectType, u32 *timeScale);
/**
* Encodes the AU context which is not encoded when calling BENC_EncodeAUFromString/File
* Should be called after Aggregate.
*
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @AUCallback, pointer on a callback function to get the result of the coding the AU using the current context
*
*/
GF_Err gf_seng_encode_context(GF_SceneEngine *seng, gf_seng_callback callback);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @ESID, target streams when no indication is present in the file (eg, no atES_ID )
* @auFile, name of a file containing a description for an access unit (BT or XMT)
* @AUCallback, pointer on a callback function to get the result of the coding the AU using the current context
*
*/
GF_Err gf_seng_encode_from_file(GF_SceneEngine *seng, u16 ESID, Bool disable_aggregation, char *auFile, gf_seng_callback callback);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @ESID, target streams when no indication is present in the file (eg, no atES_ID )
* @auString, a char string to encode (must one or several complete nodes in BT
* @AUCallback, pointer on a callback function to get the result of the coding the AU using the current context
*
*/
GF_Err gf_seng_encode_from_string(GF_SceneEngine *seng, u16 ESID, Bool disable_aggregation, char *auString, gf_seng_callback callback);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @ESID, indicates the stream to which these commands apply (0 if first scene stream)
* @commans, the list of commands to encode
* @AUCallback, pointer on a callback function to get the result of the coding the AU using the current context
*
*/
GF_Err gf_seng_encode_from_commands(GF_SceneEngine *codec, u16 ESID, Bool disable_aggregation, u32 time, GF_List *commands, gf_seng_callback callback);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @ctxFileName, name of the file to save the current state of the BIFS scene to
*
* save the current context of the seng.
* if you want to save an aggregate context, use BENC_AggregateCurrentContext before
*
*/
GF_Err gf_seng_save_context(GF_SceneEngine *seng, char *ctxFileName);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @ESID, stream ID
* @onESID: set stream aggragation on to the specified stream, or off if onESID is 0
*
* marks the stream as carrying its own "rap" in the first AU of the stream
*/
GF_Err gf_seng_enable_aggregation(GF_SceneEngine *codec, u16 ESID, u16 onESID);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
*
* aggregates the current context of the seng, creates a scene replace
* if @ESID is specified, only aggregate commands for this stream
*/
GF_Err gf_seng_aggregate_context(GF_SceneEngine *seng, u16 ESID);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
*
* release the memory used by this seng, no more call on the seng should happen after this
*
*/
void gf_seng_terminate(GF_SceneEngine *seng);
/**
* @seng, pointer to the GF_SceneEngine returned by gf_seng_init()
* @buf64, pointer to a buffer that will be allocated and will contain the base64 encoded version of the binary IOD
* @buf64, pointer to the size of the buffer
*
* encodes the IOD for this BIFS Engine into Base64
*
*/
char *gf_seng_get_base64_iod(GF_SceneEngine *seng);
GF_Descriptor *gf_seng_get_iod(GF_SceneEngine *seng);
GF_Err gf_seng_dump_rap_on(GF_SceneEngine *seng, Bool dump_rap);
#endif /*GPAC_DISABLE_SENG*/
#ifdef __cplusplus
}
#endif // __cplusplus
#endif /*_GF_SCENEENGINE_H_*/
|