qomx_core.h revision 9ec39c64004dda78086849a21087cb217d0bf6ac 
1/*Copyright (c) 2012, 2016, The Linux Foundation. All rights reserved.
2
3Redistribution and use in source and binary forms, with or without
4modification, are permitted provided that the following conditions are
5met:
6    * Redistributions of source code must retain the above copyright
7      notice, this list of conditions and the following disclaimer.
8    * Redistributions in binary form must reproduce the above
9      copyright notice, this list of conditions and the following
10      disclaimer in the documentation and/or other materials provided
11      with the distribution.
12    * Neither the name of The Linux Foundation nor the names of its
13      contributors may be used to endorse or promote products derived
14      from this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
27
28#ifndef QOMX_CORE_H
29#define QOMX_CORE_H
30
31// To remove (after PanoNative is updated)
32#include <string.h>
33
34// System dependencies
35#include <pthread.h>
36
37// OpenMAX dependencies
38#include "OMX_Component.h"
39
40#define TRUE 1
41#define FALSE 0
42#define OMX_COMP_MAX_INSTANCES 3
43#define OMX_CORE_MAX_ROLES 1
44#define OMX_COMP_MAX_NUM 5
45#define OMX_SPEC_VERSION 0x00000101
46
47typedef void *(*get_instance_t)(void);
48typedef void *(*create_comp_func_t)(OMX_PTR aobj);
49
50/** comp_info_t: Structure containing the mapping
51*    between the library name and the corresponding .so name
52*    @comp_name: name of the component
53     @lib_name: Name of the .so library
54**/
55typedef struct comp_info_t {
56  char *comp_name;
57  char *lib_name;
58} comp_info_t;
59
60/** omx_core_component_t: OMX Component structure
61*    @handle: array of number of instances of the component
62*    @roles: array of roles played by the component
63*    @comp_info: Component information such as libname,
64*              component name
65*    @open: Is the component active
66*    @lib_handle: Library handle after dlopen
67*    @obj_ptr: Function ptr to get the instance of the component
68*    @comp_func_ptr: Function ptr to map the functions in the
69*     OMX handle to its respective function implementation in
70*     the component
71**/
72typedef struct _omx_core_component_t {
73  OMX_HANDLETYPE *handle[OMX_COMP_MAX_INSTANCES];  //Instance handle
74  char *roles[OMX_CORE_MAX_ROLES];  //Roles played by the component
75  char *name;  //Component Name
76  uint8_t open;  //Is component active
77  void *lib_handle;
78  get_instance_t get_instance;
79  create_comp_func_t create_comp_func;
80  char *comp_name;
81  char *lib_name;
82} omx_core_component_t;
83
84/** omx_core_t: Global structure that contains all the active
85*   components
86*    @component: array of active components
87*    @is_initialized: Flag to check if the OMX core has been
88*    initialized
89*    @core_lock: Lock to syncronize the omx core operations
90**/
91typedef struct _omx_core_t {
92  omx_core_component_t component[OMX_COMP_MAX_NUM];  //Array of pointers to components
93  int comp_cnt;
94  pthread_mutex_t core_lock;
95} omx_core_t;
96
97#endif
98