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
|
// SPDX-License-Identifier: LGPL-2.1-or-later
// amf_helper.c: AMD Advanced Media Framework helper
// Copyright © 2024 VideoLabs, VLC authors and VideoLAN
// Authors: Steve Lhomme <robux4@videolabs.io>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "amf_helper.h"
#include <vlc_common.h>
int vlc_AMFCreateContext(struct vlc_amf_context *c)
{
#ifdef _WIN32
# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
HMODULE hLib = LoadLibraryA(AMF_DLL_NAMEA);
if (hLib == NULL)
return (-ENOTSUP);
c->Version = 0;
AMF_RESULT res;
AMFQueryVersion_Fn queryVersion = (AMFQueryVersion_Fn)GetProcAddress(hLib, AMF_QUERY_VERSION_FUNCTION_NAME);
if (unlikely(queryVersion == NULL))
goto error;
res = queryVersion(&c->Version);
if (unlikely(res != AMF_OK))
goto error;
c->pFactory = NULL;
c->Context = NULL;
AMFInit_Fn init = (AMFInit_Fn)GetProcAddress(hLib, AMF_INIT_FUNCTION_NAME);
res = init(AMF_FULL_VERSION, &c->pFactory);
if (unlikely(res != AMF_OK))
goto error;
res = c->pFactory->pVtbl->CreateContext(c->pFactory, &c->Context);
if (res != AMF_OK || c->Context == NULL)
goto error;
c->Private = hLib;
return VLC_SUCCESS;
error:
FreeLibrary(hLib);
return (-ENOTSUP);
# else // !WINAPI_PARTITION_DESKTOP
// we can't load external DLLs in UWP
return (-ENOTSUP);
# endif // !WINAPI_PARTITION_DESKTOP
#else
return NULL; // TODO
#endif
}
void vlc_AMFReleaseContext(struct vlc_amf_context *c)
{
c->Context->pVtbl->Terminate(c->Context);
c->Context->pVtbl->Release(c->Context);
#ifdef _WIN32
FreeLibrary(c->Private);
#endif
}
|
