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msdk: Add function to get the implementation description

Browse source 
Through the implementation description, we can dynamically obtain
the codec capabilities supported by the platform.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4177>
This commit is contained in:
Yinhang Liu 2023-02-22 10:23:00 +08:00 committed by GStreamer Marge Bot
parent 34a812a0c0
commit f773752bd8
2 changed files with 55 additions and 1 deletions
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50
subprojects/gst-plugins-bad/sys/msdk/msdk.c
View file

@ -179,6 +179,40 @@ msdk_get_platform_codename (mfxSession session)
#if (MFX_VERSION >= 2000)
gpointer
msdk_get_impl_description (const mfxLoader * loader, mfxU32 impl_idx)
{
mfxImplDescription *desc = NULL;
mfxStatus status = MFX_ERR_NONE;
g_return_val_if_fail (loader != NULL, NULL);
status = MFXEnumImplementations (*loader, impl_idx,
MFX_IMPLCAPS_IMPLDESCSTRUCTURE, (mfxHDL *) & desc);
if (status != MFX_ERR_NONE) {
GST_ERROR ("Failed to get implementation description, %s",
msdk_status_to_string (status));
return NULL;
}
return desc;
}
gboolean
msdk_release_impl_description (const mfxLoader * loader, gpointer impl_desc)
{
mfxStatus status = MFX_ERR_NONE;
mfxImplDescription *desc = (mfxImplDescription *) impl_desc;
g_return_val_if_fail (loader != NULL, FALSE);
status = MFXDispReleaseImplDescription (*loader, desc);
if (status != MFX_ERR_NONE)
return FALSE;
return TRUE;
}
mfxStatus
msdk_init_msdk_session (mfxIMPL impl, mfxVersion * pver,
MsdkSession * msdk_session)
@ -258,8 +292,10 @@ msdk_init_msdk_session (mfxIMPL impl, mfxVersion * pver,
sts = MFXCreateSession (loader, impl_idx, &session);
MFXDispReleaseImplDescription (loader, impl_desc);
if (sts == MFX_ERR_NONE)
if (sts == MFX_ERR_NONE) {
msdk_session->impl_idx = impl_idx;
break;
}
impl_idx++;
}
@ -282,6 +318,18 @@ msdk_init_msdk_session (mfxIMPL impl, mfxVersion * pver,
#else
gpointer
msdk_get_impl_description (const mfxLoader * loader, mfxU32 impl_idx)
{
return NULL;
}
gboolean
msdk_release_impl_description (const mfxLoader * loader, gpointer impl_desc)
{
return TRUE;
}
mfxStatus
msdk_init_msdk_session (mfxIMPL impl, mfxVersion * pver,
MsdkSession * msdk_session)

6
subprojects/gst-plugins-bad/sys/msdk/msdk.h
View file

@ -106,6 +106,7 @@ typedef struct _MsdkSession MsdkSession;
struct _MsdkSession
{
mfxU32 impl_idx;
mfxSession session;
mfxLoader loader;
};
@ -154,6 +155,11 @@ mfxStatus
msdk_init_msdk_session (mfxIMPL impl, mfxVersion * pver,
MsdkSession * msdk_session);
gpointer
msdk_get_impl_description (const mfxLoader * loader, mfxU32 impl_idx);
gboolean
msdk_release_impl_description (const mfxLoader * loader, gpointer impl_desc);
G_END_DECLS
#endif /* __MSDK_H__ */