mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-05 07:56:35 +00:00
810 lines
26 KiB
C++
810 lines
26 KiB
C++
/*############################################################################
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# Copyright (C) Intel Corporation
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#
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# SPDX-License-Identifier: MIT
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############################################################################*/
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#include <assert.h>
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#include <dlfcn.h>
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#include <string.h>
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#include <unistd.h>
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#include <algorithm>
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#include <list>
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#include <memory>
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#include <mutex>
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#include <utility>
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#include <vector>
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#include "vpl/mfxvideo.h"
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#include "linux/device_ids.h"
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#include "linux/mfxloader.h"
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namespace MFX {
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#if defined(__x86_64__) || (INTPTR_MAX == INT64_MAX)
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#define LIBMFXSW "libmfxsw64.so.1"
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#define LIBMFXHW "libmfxhw64.so.1"
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#define ONEVPLSW "libvplswref64.so.1"
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#define ONEVPLHW "libmfx-gen.so.1.2"
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#elif defined(__i386__) || (INTPTR_MAX == INT32_MAX)
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#define LIBMFXSW "libmfxsw32.so.1"
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#define LIBMFXHW "libmfxhw32.so.1"
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#define ONEVPLSW "libvplswref32.so.1"
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#define ONEVPLHW "libmfx-gen.so.1.2"
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#else
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#error Unsupported architecture
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#endif
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#undef FUNCTION
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#define FUNCTION(return_value, func_name, formal_param_list, actual_param_list) e##func_name,
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enum Function {
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eMFXInit,
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eMFXInitEx,
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eMFXClose,
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eMFXJoinSession,
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#include "linux/mfxvideo_functions.h"
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eFunctionsNum,
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eNoMoreFunctions = eFunctionsNum
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};
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// new functions for API 2.x
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enum Function2 {
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// 2.0
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eMFXQueryImplsDescription = 0,
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eMFXReleaseImplDescription,
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eMFXMemory_GetSurfaceForVPP,
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eMFXMemory_GetSurfaceForEncode,
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eMFXMemory_GetSurfaceForDecode,
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eMFXInitialize,
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// 2.1
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eMFXMemory_GetSurfaceForVPPOut,
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eMFXVideoDECODE_VPP_Init,
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eMFXVideoDECODE_VPP_DecodeFrameAsync,
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eMFXVideoDECODE_VPP_Reset,
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eMFXVideoDECODE_VPP_GetChannelParam,
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eMFXVideoDECODE_VPP_Close,
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eMFXVideoVPP_ProcessFrameAsync,
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eFunctionsNum2,
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};
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struct FunctionsTable {
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Function id;
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const char *name;
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mfxVersion version;
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};
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struct FunctionsTable2 {
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Function2 id;
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const char *name;
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mfxVersion version;
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};
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#define VERSION(major, minor) \
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{ \
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{ minor, major } \
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}
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#undef FUNCTION
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#define FUNCTION(return_value, func_name, formal_param_list, actual_param_list) \
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{ e##func_name, #func_name, API_VERSION },
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static const FunctionsTable g_mfxFuncTable[] = {
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{ eMFXInit, "MFXInit", VERSION(1, 0) },
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{ eMFXInitEx, "MFXInitEx", VERSION(1, 14) },
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{ eMFXClose, "MFXClose", VERSION(1, 0) },
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{ eMFXJoinSession, "MFXJoinSession", VERSION(1, 1) },
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#include "linux/mfxvideo_functions.h" // NOLINT(build/include)
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{ eNoMoreFunctions }
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};
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static const FunctionsTable2 g_mfxFuncTable2[] = {
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{ eMFXQueryImplsDescription, "MFXQueryImplsDescription", VERSION(2, 0) },
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{ eMFXReleaseImplDescription, "MFXReleaseImplDescription", VERSION(2, 0) },
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{ eMFXMemory_GetSurfaceForVPP, "MFXMemory_GetSurfaceForVPP", VERSION(2, 0) },
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{ eMFXMemory_GetSurfaceForEncode, "MFXMemory_GetSurfaceForEncode", VERSION(2, 0) },
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{ eMFXMemory_GetSurfaceForDecode, "MFXMemory_GetSurfaceForDecode", VERSION(2, 0) },
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{ eMFXInitialize, "MFXInitialize", VERSION(2, 0) },
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{ eMFXMemory_GetSurfaceForVPPOut, "MFXMemory_GetSurfaceForVPPOut", VERSION(2, 1) },
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{ eMFXVideoDECODE_VPP_Init, "MFXVideoDECODE_VPP_Init", VERSION(2, 1) },
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{ eMFXVideoDECODE_VPP_DecodeFrameAsync, "MFXVideoDECODE_VPP_DecodeFrameAsync", VERSION(2, 1) },
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{ eMFXVideoDECODE_VPP_Reset, "MFXVideoDECODE_VPP_Reset", VERSION(2, 1) },
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{ eMFXVideoDECODE_VPP_GetChannelParam, "MFXVideoDECODE_VPP_GetChannelParam", VERSION(2, 1) },
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{ eMFXVideoDECODE_VPP_Close, "MFXVideoDECODE_VPP_Close", VERSION(2, 1) },
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{ eMFXVideoVPP_ProcessFrameAsync, "MFXVideoVPP_ProcessFrameAsync", VERSION(2, 1) },
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};
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class LoaderCtx {
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public:
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mfxStatus Init(mfxInitParam &par,
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mfxInitializationParam &vplParam,
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mfxU16 *pDeviceID,
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char *dllName,
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bool bCloneSession = false);
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mfxStatus Close();
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inline void *getFunction(Function func) const {
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return m_table[func];
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}
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inline void *getFunction2(Function2 func) const {
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return m_table2[func];
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}
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inline mfxSession getSession() const {
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return m_session;
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}
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inline mfxIMPL getImpl() const {
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return m_implementation;
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}
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inline mfxVersion getVersion() const {
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return m_version;
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}
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inline void *getHandle() const {
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return m_dlh.get();
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}
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inline const char *getLibPath() const {
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return m_libToLoad.c_str();
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}
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// special operations to set session pointer and version from MFXCloneSession()
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inline void setSession(const mfxSession session) {
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m_session = session;
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}
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inline void setVersion(const mfxVersion version) {
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m_version = version;
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}
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private:
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std::shared_ptr<void> m_dlh;
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mfxVersion m_version{};
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mfxIMPL m_implementation{};
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mfxSession m_session = nullptr;
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void *m_table[eFunctionsNum]{};
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void *m_table2[eFunctionsNum2]{};
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std::string m_libToLoad;
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};
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std::shared_ptr<void> make_dlopen(const char *filename, int flags) {
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return std::shared_ptr<void>(dlopen(filename, flags), [](void *handle) {
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if (handle)
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dlclose(handle);
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});
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}
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mfxStatus LoaderCtx::Init(mfxInitParam &par,
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mfxInitializationParam &vplParam,
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mfxU16 *pDeviceID,
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char *dllName,
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bool bCloneSession) {
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mfxStatus mfx_res = MFX_ERR_NONE;
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std::vector<std::string> libs;
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std::vector<Device> devices;
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eMFXHWType msdk_platform;
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// query graphics device_id
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// if it is found on list of legacy devices, load MSDK RT
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// otherwise load oneVPL RT
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mfxU16 deviceID = 0;
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mfx_res = get_devices(devices);
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if (mfx_res == MFX_ERR_NOT_FOUND) {
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// query failed
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msdk_platform = MFX_HW_UNKNOWN;
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}
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else {
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// query succeeded:
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// may be a valid platform from listLegalDevIDs[] or MFX_HW_UNKNOWN
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// if underlying device_id is unrecognized (i.e. new platform)
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msdk_platform = devices[0].platform;
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deviceID = devices[0].device_id;
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}
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if (pDeviceID)
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*pDeviceID = deviceID;
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if (dllName) {
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// attempt to load only this DLL, fail if unsuccessful
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// this may also be used later by MFXCloneSession()
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m_libToLoad = dllName;
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libs.emplace_back(m_libToLoad);
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}
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else {
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mfxIMPL implType = MFX_IMPL_BASETYPE(par.Implementation);
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// add HW lib
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if (implType == MFX_IMPL_AUTO || implType == MFX_IMPL_AUTO_ANY ||
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(implType & MFX_IMPL_HARDWARE) || (implType & MFX_IMPL_HARDWARE_ANY)) {
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if (msdk_platform == MFX_HW_UNKNOWN) {
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// if not on list of known MSDK platforms, prefer oneVPL
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libs.emplace_back(ONEVPLHW);
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libs.emplace_back(MFX_MODULES_DIR "/" ONEVPLHW);
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}
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// use MSDK (fallback if oneVPL is not installed)
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libs.emplace_back(LIBMFXHW);
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libs.emplace_back(MFX_MODULES_DIR "/" LIBMFXHW);
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}
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// add SW lib (oneVPL only)
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if (implType == MFX_IMPL_AUTO || implType == MFX_IMPL_AUTO_ANY ||
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(implType & MFX_IMPL_SOFTWARE)) {
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libs.emplace_back(ONEVPLSW);
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libs.emplace_back(MFX_MODULES_DIR "/" ONEVPLSW);
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}
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}
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// fail if libs is empty (invalid Implementation)
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mfx_res = MFX_ERR_UNSUPPORTED;
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for (auto &lib : libs) {
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std::shared_ptr<void> hdl = make_dlopen(lib.c_str(), RTLD_LOCAL | RTLD_NOW);
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if (hdl) {
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do {
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/* Loading functions table */
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bool wrong_version = false;
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for (int i = 0; i < eFunctionsNum; ++i) {
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assert(i == g_mfxFuncTable[i].id);
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m_table[i] = dlsym(hdl.get(), g_mfxFuncTable[i].name);
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if (!m_table[i] && ((g_mfxFuncTable[i].version <= par.Version))) {
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wrong_version = true;
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break;
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}
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}
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// if version >= 2.0, load these functions as well
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if (par.Version.Major >= 2) {
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for (int i = 0; i < eFunctionsNum2; ++i) {
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assert(i == g_mfxFuncTable2[i].id);
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m_table2[i] = dlsym(hdl.get(), g_mfxFuncTable2[i].name);
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if (!m_table2[i] && (g_mfxFuncTable2[i].version <= par.Version)) {
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wrong_version = true;
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break;
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}
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}
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}
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if (wrong_version) {
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mfx_res = MFX_ERR_UNSUPPORTED;
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break;
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}
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if (bCloneSession == true) {
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// success - exit loop since caller will create session with MFXCloneSession()
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mfx_res = MFX_ERR_NONE;
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break;
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}
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if (par.Version.Major >= 2) {
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// for API >= 2.0 call MFXInitialize instead of MFXInitEx
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mfx_res =
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((decltype(MFXInitialize) *)m_table2[eMFXInitialize])(vplParam, &m_session);
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}
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else {
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if (m_table[eMFXInitEx]) {
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// initialize with MFXInitEx if present (API >= 1.14)
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mfx_res = ((decltype(MFXInitEx) *)m_table[eMFXInitEx])(par, &m_session);
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}
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else {
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// initialize with MFXInit for API < 1.14
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mfx_res = ((decltype(MFXInit) *)m_table[eMFXInit])(par.Implementation,
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&(par.Version),
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&m_session);
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}
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}
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if (MFX_ERR_NONE != mfx_res) {
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break;
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}
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// Below we just get some data and double check that we got what we have expected
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// to get. Some of these checks are done inside mediasdk init function
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mfx_res =
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((decltype(MFXQueryVersion) *)m_table[eMFXQueryVersion])(m_session, &m_version);
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if (MFX_ERR_NONE != mfx_res) {
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break;
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}
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if (m_version < par.Version) {
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mfx_res = MFX_ERR_UNSUPPORTED;
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break;
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}
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mfx_res = ((decltype(MFXQueryIMPL) *)m_table[eMFXQueryIMPL])(m_session,
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&m_implementation);
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if (MFX_ERR_NONE != mfx_res) {
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mfx_res = MFX_ERR_UNSUPPORTED;
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break;
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}
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} while (false);
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if (MFX_ERR_NONE == mfx_res) {
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m_dlh = std::move(hdl);
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break;
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}
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else {
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Close();
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}
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}
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}
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return mfx_res;
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}
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mfxStatus LoaderCtx::Close() {
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auto proc = (decltype(MFXClose) *)m_table[eMFXClose];
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mfxStatus mfx_res = (proc) ? (*proc)(m_session) : MFX_ERR_NONE;
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m_implementation = {};
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m_version = {};
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m_session = nullptr;
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std::fill(std::begin(m_table), std::end(m_table), nullptr);
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return mfx_res;
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}
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} // namespace MFX
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// internal function - load a specific DLL, return unsupported if it fails
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// vplParam is required for API >= 2.0 (load via MFXInitialize)
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mfxStatus MFXInitEx2(mfxVersion version,
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mfxInitializationParam vplParam,
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mfxIMPL hwImpl,
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mfxSession *session,
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mfxU16 *deviceID,
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char *dllName) {
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if (!session)
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return MFX_ERR_NULL_PTR;
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*deviceID = 0;
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// fill minimal 1.x parameters for Init to choose correct initialization path
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mfxInitParam par = {};
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par.Version = version;
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// select first adapter if not specified
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// only relevant for MSDK-via-MFXLoad path
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if (!hwImpl)
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hwImpl = MFX_IMPL_HARDWARE;
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switch (vplParam.AccelerationMode) {
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case MFX_ACCEL_MODE_NA:
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par.Implementation = MFX_IMPL_SOFTWARE;
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break;
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case MFX_ACCEL_MODE_VIA_D3D9:
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par.Implementation = hwImpl | MFX_IMPL_VIA_D3D9;
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break;
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case MFX_ACCEL_MODE_VIA_D3D11:
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par.Implementation = hwImpl | MFX_IMPL_VIA_D3D11;
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break;
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case MFX_ACCEL_MODE_VIA_VAAPI:
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par.Implementation = hwImpl | MFX_IMPL_VIA_VAAPI;
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break;
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default:
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par.Implementation = hwImpl;
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break;
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}
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// also pass extBuf array (if any) to MFXInitEx for 1.x API
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par.NumExtParam = vplParam.NumExtParam;
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par.ExtParam = (vplParam.NumExtParam ? vplParam.ExtParam : nullptr);
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#ifdef ONEVPL_EXPERIMENTAL
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// if GPUCopy is enabled via MFXSetConfigProperty(DeviceCopy), set corresponding
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// flag in mfxInitParam for legacy RTs
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par.GPUCopy = vplParam.DeviceCopy;
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#endif
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try {
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std::unique_ptr<MFX::LoaderCtx> loader;
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loader.reset(new MFX::LoaderCtx{});
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mfxStatus mfx_res = loader->Init(par, vplParam, deviceID, dllName);
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if (MFX_ERR_NONE == mfx_res) {
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*session = (mfxSession)loader.release();
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}
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else {
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*session = nullptr;
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}
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return mfx_res;
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}
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catch (...) {
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return MFX_ERR_MEMORY_ALLOC;
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}
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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mfxStatus MFXInit(mfxIMPL impl, mfxVersion *ver, mfxSession *session) {
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mfxInitParam par{};
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par.Implementation = impl;
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if (ver) {
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par.Version = *ver;
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}
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else {
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par.Version = VERSION(MFX_VERSION_MAJOR, MFX_VERSION_MINOR);
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}
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return MFXInitEx(par, session);
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}
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mfxStatus MFXInitEx(mfxInitParam par, mfxSession *session) {
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if (!session)
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return MFX_ERR_NULL_PTR;
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const mfxIMPL implMethod = par.Implementation & (MFX_IMPL_VIA_ANY - 1);
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mfxInitializationParam vplParam = {};
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if (implMethod == MFX_IMPL_SOFTWARE) {
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vplParam.AccelerationMode = MFX_ACCEL_MODE_NA;
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}
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else {
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vplParam.AccelerationMode = MFX_ACCEL_MODE_VIA_VAAPI;
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}
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try {
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std::unique_ptr<MFX::LoaderCtx> loader;
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loader.reset(new MFX::LoaderCtx{});
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mfxStatus mfx_res = loader->Init(par, vplParam, nullptr, nullptr);
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if (MFX_ERR_NONE == mfx_res) {
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*session = (mfxSession)loader.release();
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}
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else {
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*session = nullptr;
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}
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return mfx_res;
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}
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catch (...) {
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return MFX_ERR_MEMORY_ALLOC;
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}
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}
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mfxStatus MFXClose(mfxSession session) {
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if (!session)
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return MFX_ERR_INVALID_HANDLE;
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try {
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std::unique_ptr<MFX::LoaderCtx> loader((MFX::LoaderCtx *)session);
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mfxStatus mfx_res = loader->Close();
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if (mfx_res == MFX_ERR_UNDEFINED_BEHAVIOR) {
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// It is possible, that there is an active child session.
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// Can't unload library in this case.
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loader.release();
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}
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return mfx_res;
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}
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catch (...) {
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return MFX_ERR_MEMORY_ALLOC;
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}
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}
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// passthrough functions to implementation
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mfxStatus MFXMemory_GetSurfaceForVPP(mfxSession session, mfxFrameSurface1 **surface) {
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if (!session)
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return MFX_ERR_INVALID_HANDLE;
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MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
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auto proc = (decltype(MFXMemory_GetSurfaceForVPP) *)loader->getFunction2(
|
|
MFX::eMFXMemory_GetSurfaceForVPP);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), surface);
|
|
}
|
|
|
|
mfxStatus MFXMemory_GetSurfaceForVPPOut(mfxSession session, mfxFrameSurface1 **surface) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc = (decltype(MFXMemory_GetSurfaceForVPPOut) *)loader->getFunction2(
|
|
MFX::eMFXMemory_GetSurfaceForVPPOut);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), surface);
|
|
}
|
|
|
|
mfxStatus MFXMemory_GetSurfaceForEncode(mfxSession session, mfxFrameSurface1 **surface) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc = (decltype(MFXMemory_GetSurfaceForEncode) *)loader->getFunction2(
|
|
MFX::eMFXMemory_GetSurfaceForEncode);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), surface);
|
|
}
|
|
|
|
mfxStatus MFXMemory_GetSurfaceForDecode(mfxSession session, mfxFrameSurface1 **surface) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc = (decltype(MFXMemory_GetSurfaceForDecode) *)loader->getFunction2(
|
|
MFX::eMFXMemory_GetSurfaceForDecode);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), surface);
|
|
}
|
|
|
|
mfxStatus MFXVideoDECODE_VPP_Init(mfxSession session,
|
|
mfxVideoParam *decode_par,
|
|
mfxVideoChannelParam **vpp_par_array,
|
|
mfxU32 num_vpp_par) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc =
|
|
(decltype(MFXVideoDECODE_VPP_Init) *)loader->getFunction2(MFX::eMFXVideoDECODE_VPP_Init);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), decode_par, vpp_par_array, num_vpp_par);
|
|
}
|
|
|
|
mfxStatus MFXVideoDECODE_VPP_DecodeFrameAsync(mfxSession session,
|
|
mfxBitstream *bs,
|
|
mfxU32 *skip_channels,
|
|
mfxU32 num_skip_channels,
|
|
mfxSurfaceArray **surf_array_out) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc = (decltype(MFXVideoDECODE_VPP_DecodeFrameAsync) *)loader->getFunction2(
|
|
MFX::eMFXVideoDECODE_VPP_DecodeFrameAsync);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), bs, skip_channels, num_skip_channels, surf_array_out);
|
|
}
|
|
|
|
mfxStatus MFXVideoDECODE_VPP_Reset(mfxSession session,
|
|
mfxVideoParam *decode_par,
|
|
mfxVideoChannelParam **vpp_par_array,
|
|
mfxU32 num_vpp_par) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc =
|
|
(decltype(MFXVideoDECODE_VPP_Reset) *)loader->getFunction2(MFX::eMFXVideoDECODE_VPP_Reset);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), decode_par, vpp_par_array, num_vpp_par);
|
|
}
|
|
|
|
mfxStatus MFXVideoDECODE_VPP_GetChannelParam(mfxSession session,
|
|
mfxVideoChannelParam *par,
|
|
mfxU32 channel_id) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc = (decltype(MFXVideoDECODE_VPP_GetChannelParam) *)loader->getFunction2(
|
|
MFX::eMFXVideoDECODE_VPP_GetChannelParam);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), par, channel_id);
|
|
}
|
|
|
|
mfxStatus MFXVideoDECODE_VPP_Close(mfxSession session) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc =
|
|
(decltype(MFXVideoDECODE_VPP_Close) *)loader->getFunction2(MFX::eMFXVideoDECODE_VPP_Close);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession());
|
|
}
|
|
|
|
mfxStatus MFXVideoVPP_ProcessFrameAsync(mfxSession session,
|
|
mfxFrameSurface1 *in,
|
|
mfxFrameSurface1 **out) {
|
|
if (!session)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
auto proc = (decltype(MFXVideoVPP_ProcessFrameAsync) *)loader->getFunction2(
|
|
MFX::eMFXVideoVPP_ProcessFrameAsync);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), in, out);
|
|
}
|
|
|
|
mfxStatus MFXJoinSession(mfxSession session, mfxSession child_session) {
|
|
if (!session || !child_session) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
MFX::LoaderCtx *child_loader = (MFX::LoaderCtx *)child_session;
|
|
|
|
if (loader->getVersion().Version != child_loader->getVersion().Version) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
auto proc = (decltype(MFXJoinSession) *)loader->getFunction(MFX::eMFXJoinSession);
|
|
if (!proc) {
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
}
|
|
|
|
return (*proc)(loader->getSession(), child_loader->getSession());
|
|
}
|
|
|
|
static mfxStatus AllocateCloneLoader(MFX::LoaderCtx *parentLoader, MFX::LoaderCtx **cloneLoader) {
|
|
// initialization param structs are not used when bCloneSession == true
|
|
mfxInitParam par = {};
|
|
mfxInitializationParam vplParam = {};
|
|
mfxU16 deviceID = 0;
|
|
|
|
// initialization extBufs are not saved at this level
|
|
// the RT should save these when the parent session is created and may use
|
|
// them when creating the cloned session
|
|
par.NumExtParam = 0;
|
|
|
|
try {
|
|
std::unique_ptr<MFX::LoaderCtx> cl;
|
|
|
|
cl.reset(new MFX::LoaderCtx{});
|
|
|
|
mfxStatus mfx_res =
|
|
cl->Init(par, vplParam, &deviceID, (char *)parentLoader->getLibPath(), true);
|
|
if (MFX_ERR_NONE == mfx_res) {
|
|
*cloneLoader = cl.release();
|
|
}
|
|
else {
|
|
*cloneLoader = nullptr;
|
|
}
|
|
|
|
return mfx_res;
|
|
}
|
|
catch (...) {
|
|
return MFX_ERR_MEMORY_ALLOC;
|
|
}
|
|
}
|
|
|
|
mfxStatus MFXCloneSession(mfxSession session, mfxSession *clone) {
|
|
if (!session || !clone)
|
|
return MFX_ERR_INVALID_HANDLE;
|
|
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
mfxVersion version = loader->getVersion();
|
|
*clone = nullptr;
|
|
|
|
// initialize the clone session
|
|
// for runtimes with 1.x API, call MFXInit followed by MFXJoinSession
|
|
// for runtimes with 2.x API, use RT implementation of MFXCloneSession (passthrough)
|
|
if (version.Major == 1) {
|
|
mfxStatus mfx_res = MFXInit(loader->getImpl(), &version, clone);
|
|
if (MFX_ERR_NONE != mfx_res) {
|
|
return mfx_res;
|
|
}
|
|
|
|
// join the sessions
|
|
mfx_res = MFXJoinSession(session, *clone);
|
|
if (MFX_ERR_NONE != mfx_res) {
|
|
MFXClose(*clone);
|
|
*clone = nullptr;
|
|
return mfx_res;
|
|
}
|
|
}
|
|
else if (version.Major == 2) {
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session;
|
|
|
|
// MFXCloneSession not included in function pointer search during init
|
|
// for bwd-compat, check for it here and fail gracefully if missing
|
|
void *libHandle = loader->getHandle();
|
|
auto proc = (decltype(MFXCloneSession) *)(dlsym(libHandle, "MFXCloneSession"));
|
|
if (!proc)
|
|
return MFX_ERR_UNSUPPORTED;
|
|
|
|
// allocate new dispatcher-level session object and copy
|
|
// state from parent session (function pointer tables, impl type, etc.)
|
|
MFX::LoaderCtx *cloneLoader;
|
|
mfxStatus mfx_res = AllocateCloneLoader(loader, &cloneLoader);
|
|
if (mfx_res != MFX_ERR_NONE)
|
|
return mfx_res;
|
|
|
|
// call RT implementation of MFXCloneSession
|
|
mfxSession cloneRT;
|
|
mfx_res = (*proc)(loader->getSession(), &cloneRT);
|
|
|
|
if (mfx_res != MFX_ERR_NONE || cloneRT == NULL) {
|
|
// RT call failed, delete cloned loader (no valid session created)
|
|
delete cloneLoader;
|
|
return MFX_ERR_UNSUPPORTED;
|
|
}
|
|
cloneLoader->setSession(cloneRT);
|
|
|
|
// get version of cloned session
|
|
mfxVersion cloneVersion = {};
|
|
mfx_res = MFXQueryVersion((mfxSession)cloneLoader, &cloneVersion);
|
|
cloneLoader->setVersion(cloneVersion);
|
|
if (mfx_res != MFX_ERR_NONE) {
|
|
MFXClose((mfxSession)cloneLoader);
|
|
return mfx_res;
|
|
}
|
|
|
|
*clone = (mfxSession)cloneLoader;
|
|
}
|
|
else {
|
|
return MFX_ERR_UNSUPPORTED;
|
|
}
|
|
|
|
return MFX_ERR_NONE;
|
|
}
|
|
|
|
#undef FUNCTION
|
|
#define FUNCTION(return_value, func_name, formal_param_list, actual_param_list) \
|
|
return_value MFX_CDECL func_name formal_param_list { \
|
|
/* get the function's address and make a call */ \
|
|
if (!session) \
|
|
return MFX_ERR_INVALID_HANDLE; \
|
|
\
|
|
MFX::LoaderCtx *loader = (MFX::LoaderCtx *)session; \
|
|
\
|
|
auto proc = (decltype(func_name) *)loader->getFunction(MFX::e##func_name); \
|
|
if (!proc) \
|
|
return MFX_ERR_INVALID_HANDLE; \
|
|
\
|
|
/* get the real session pointer */ \
|
|
session = loader->getSession(); \
|
|
/* pass down the call */ \
|
|
return (*proc)actual_param_list; \
|
|
}
|
|
|
|
#include "linux/mfxvideo_functions.h" // NOLINT(build/include)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|