I want to capture video using Media Foundation transform library.
I have used
HRESULT hr = S_OK;
D3D_FEATURE_LEVEL FeatureLevel;
ID3D11DeviceContext* pDX11DeviceContext;
hr = CreateDX11Device(&g_pDX11Device, &pDX11DeviceContext, &FeatureLevel);
if (SUCCEEDED(hr))
{
hr = MFCreateDXGIDeviceManager(&g_ResetToken, &g_pDXGIMan);
}
On building the vcpp application I received error:
unresolved external symbol MFCreateDXGIDeviceManagerv
For this, I used
#pragma comment(lib, "mf") // For MFEnumDevices
#pragma comment(lib, "mfplat")
#pragma comment(lib, "mfreadwrite")
#pragma comment(lib, "dxva2")
#pragma comment(lib, "d3d11")
#pragma comment(lib, "mfuuid")
to include libraries related to MFCreateDXGIDeviceManagerv. Still I am getting same error.
Please suggest the solution.
MFCreateDXGIDeviceManager is in MshtmlMedia.dll on Windows 7, and in the MFPlat.dll on Windows 8 and higher.
Related
I'm the owner the Digispark micro and gm009605v4 OLED display. But I'm not able compile this project
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define OLED_Address 0x3C
Adafruit_SSD1306 oled(1);
void setup() {
oled.begin(SSD1306_SWITCHCAPVCC, OLED_Address);
}
void loop() {
oled.clearDisplay();
oled.setTextColor(WHITE);
oled.setCursor(0,0);
oled.println("Hello!");
oled.display();
}
The error message is
Arduino: 1.8.12 (Windows 10), Board: "Digispark (Default - 16.5mhz)"
In file included from C:\Users\lin\Documents\Arduino\sketch_jun11a\sketch_jun11a.ino:1:0:
C:\Users\lin\Documents\Arduino\libraries\Adafruit-GFX-Library-master/Adafruit_GFX.h:113:28: error: '__FlashStringHelper' does not name a type
void getTextBounds(const __FlashStringHelper *s, int16_t x, int16_t y,
^
C:\Users\lin\Documents\Arduino\libraries\Adafruit-GFX-Library-master/Adafruit_GFX.h:113:49: error: ISO C++ forbids declaration of 's' with no type [-fpermissive]
void getTextBounds(const __FlashStringHelper *s, int16_t x, int16_t y,
^
In file included from c:\users\lin\appdata\local\arduino15\packages\arduino\tools\avr-gcc\4.8.1-arduino5\avr\include\avr\io.h:99:0,
from c:\users\lin\appdata\local\arduino15\packages\arduino\tools\avr-gcc\4.8.1-arduino5\avr\include\avr\interrupt.h:38,
from C:\Users\lin\AppData\Local\Arduino15\packages\digistump\hardware\avr\1.6.7\cores\tiny/WProgram.h:8,
from C:\Users\lin\AppData\Local\Arduino15\packages\digistump\hardware\avr\1.6.7\cores\tiny/Arduino.h:4,
from sketch\sketch_jun11a.ino.cpp:1:
And more....
Can you help me, please? I have installed latest Adafruit SSD1306. Or is there another library for work with this display? Noone example I found and tried worked for me
Adafruit has stated the following:
It will compile if you set the processor to digispark pro.
Why it is that way is known to them.
EDIT: The problem was solved - New problem TwoWire does not name a type. Solution for that:
The adafruit library is directly referencing the TwoWire class which is normally defined in wire.h. For the Digistump boards, they have a similar class but it is called WUI_TWI, not TwoWire.
Probably the easiest way to fix this would be to modify the wire.h file that came from Digistump. add this near the end of the file wire.h
extern USI_TWI Wire;
#define TwoWire USI_TWI // add this line
#endif
The wire.h file (in windows) will be located in
C:\Users\YOUR_USERNAME\AppData\Local\Arduino15\packages\digistump\hardware\avr\1.6.7\libraries\Wire
make sure it is this one for digistump with the USI_TWI class, not the standard arduino one with the TwoWire class
In order to test some functions of a Qt application (named qtapp), I build the Qt application as lib/dll library. The ctor and dtor have been correctly exported in the library. However compiling the test project (a Qt console project named consoleTest) is always running to the following link errors:
Link:
1> Bibliothek "C:\Users\gmbh\test\x64\Debug\consoleTest.lib" und Objekt C:\Users\gmbh\test\x64\Debug\consoleTest.exp" werden erstellt.
1>moc_testFour.obj : error LNK2001: Nicht aufgelöstes externes Symbol ""public: static struct QMetaObject const qtapp::staticMetaObject" (?staticMetaObject#qtapp##2UQMetaObject##B)".
1>testFour.obj : error LNK2001: Nicht aufgelöstes externes Symbol ""public: static struct QMetaObject const qtapp::staticMetaObject" (?staticMetaObject#qtapp##2UQMetaObject##B)".
1>C:\Users\gmbh\test\x64\Debug\consoleTest.exe : fatal error LNK1120: 1 nicht aufgelöste Externe
The Qt application is quite simple:
#ifndef QTAPP_H
#define QTAPP_H
#include <QtWidgets/QMainWindow>
#include "ui_qtapp.h"
class __declspec(dllexport) qtapp : public QMainWindow
{
Q_OBJECT
public:
qtapp(QWidget* parent = 0);
~qtapp();
private:
Ui::qtappClass ui;
};
#endif // QTAPP_H
Implementation:
#include "qtapp.h"
__declspec(dllexport) qtapp::qtapp(QWidget* parent)
: QMainWindow(parent)
{
ui.setupUi(this);
}
__declspec(dllexport) qtapp::~qtapp()
{
}
If I simply include #include "qtapp.h" in the test project, the compiler yields the above error.
My questions:
What are the causes for the errors?
How to correctly deploy a Qt
application as lib?
My compiler is visual studio 2013, qt has the version of 5.4.2
That's actually a question independent of Qt. When linking an application against the library you need to have __declspec(dllimport) instead of __declspec(dllexport).
To achieve that, one usually uses defines that change when linking the library vs linking the application against the library. Microsoft has a help page on that "Importing into an Application Using __declspec(dllimport)".
The Qt documentation provides another one. The one thing where Qt can help, is replacing the __declspec by a cross-platform Q_DECL_IMPORT.
I have recently installed MS Visual Studio 2015 with the Arduino plugin "Visual Micro".
Everything works fine, upload a sketch etc. Except when I try to compile my code when I use FreeRTOS. I downloaded the FreeRTOS libary through the Arduino IDE (library manager). Therefore(in MS VS 2015) I could chose to include the library in MS VS 2015. So I included the library in one of my sketches. Below you see my code example. Within the Arduino IDE i can compile the code and upload it to the device, but in MS VS there are some errors.
#include <timers.h>
#include <task.h>
#include <StackMacros.h>
#include <semphr.h>
#include <queue.h>
#include <projdefs.h>
#include <portmacro.h>
#include <portable.h>
#include <mpu_wrappers.h>
#include <list.h>
#include <FreeRTOSVariant.h>
#include <FreeRTOSConfig.h>
#include <event_groups.h>
#include <croutine.h>
#include <Arduino_FreeRTOS.h>
//define Tasks
void TaskBlinkSlow(void *pvParameters);
void TaskBlinkFast(void *pvParameters);
void setup()
{
/* add setup code here */
xTaskCreate(TaskBlinkSlow, "TaskSlow", 128, NULL, 1, NULL);
xTaskCreate(TaskBlinkFast, "TaskFast", 128, NULL, 2, NULL);
pinMode(13, OUTPUT);
}
void loop()
{
//Empty, things are done in tasks!!!
}
void TaskBlinkSlow(void * pvParameters)
{
for (;;) {
for (int i = 0; i < 8; i++) {
digitalWrite(13, HIGH);
delay(1000);
digitalWrite(13, LOW);
delay(1000);
}
vTaskDelay(5000 / portTICK_PERIOD_MS);
}
}
void TaskBlinkFast(void * pvParameters)
{
for (;;) {
digitalWrite(13, HIGH);
delay(500);
digitalWrite(13, LOW);
delay(500);
}
}
At the end of this post you will find the short snippet of the compilers error log. Maybe someone already came around the same issue and has a quick fix.
An example debugger breakpoint has been created. To switch the demo
breakpoint off, deselect Visual Micro>Tutorial Mode.
Compiling debug version of 'FreeRTOS' for 'Arduino/Genuino Uno'
FreeRTOS.ino:In file included from timers.h:75:3: error: #error
"include Arduino_FreeRTOS.h must appear in source files before include
timers.h" :#error "include Arduino_FreeRTOS.h must appear in source
files before include timers.h" timers.h:In file included from
FreeRTOS.ino:from task.h:75:3: error: #error "include
Arduino_FreeRTOS.h must appear in source files before include task.h"
:#error "include Arduino_FreeRTOS.h must appear in source files before
include task.h" task.h:In file included from timers.h:from
FreeRTOS.ino:from list.h:99:3: error: #error Arduino_FreeRTOS.h must
be included before list.h :#error Arduino_FreeRTOS.h must be included
before list.h FreeRTOS.ino:In file included from semphr.h:74:3: error:
error "include Arduino_FreeRTOS.h" must appear in source files before "include semphr.h" :#error "include Arduino_FreeRTOS.h" must appear in
source files before "include semphr.h" semphr.h:In file included from
FreeRTOS.ino:from queue.h:75:3: error: #error "include
Arduino_FreeRTOS.h" must appear in source files before "include
queue.h" :#error "include Arduino_FreeRTOS.h" must appear in source
files before "include queue.h" FreeRTOS.ino:In file included from
list.h:99:3: error: #error Arduino_FreeRTOS.h must be included before
list.h :#error Arduino_FreeRTOS.h must be included before list.h
task.h:In file included from timers.h:from FreeRTOS.ino:from
list.h:184:22: error: 'TickType_t' does not name a type
:configLIST_VOLATILE TickType_t xItemValue; *< The value being
listed. In most cases this is used to sort the list in descending
order. * list.h:196:22: error: 'TickType_t' does not name a type
:configLIST_VOLATILE TickType_t xItemValue list.h:208:22: error:
'UBaseType_t' does not name a type :configLIST_VOLATILE UBaseType_t
uxNumberOfItems list.h:386:47: error: expected initializer before
'PRIVILEGED_FUNCTION :void vListInitialise( List_t * const pxList )
PRIVILEGED_FUNCTION list.h:397:55: error: expected initializer before
'PRIVILEGED_FUNCTION :void vListInitialiseItem( ListItem_t * const
pxItem ) PRIVILEGED_FUNCTION list.h:410:77: error: expected
initializer before 'PRIVILEGED_FUNCTION :void vListInsert( List_t *
const pxList, ListItem_t * const pxNewListItem ) PRIVILEGED_FUNCTION
list.h:431:80: error: expected initializer before 'PRIVILEGED_FUNCTION
:void vListInsertEnd( List_t * const pxList, ListItem_t * const
pxNewListItem ) PRIVILEGED_FUNCTION list.h:446:1: error: 'UBaseType_t'
does not name a type :UBaseType_t uxListRemove( ListItem_t * const
pxItemToRemove ) PRIVILEGED_FUNCTION timers.h:In file included from
FreeRTOS.ino:from task.h:109:20: error: ISO C++ forbids declaration of
'BaseType_t' with no type [-fpermissive] :typedef BaseType_t
(*TaskHookFunction_t)( void * ) task.h:109:20: error: typedef
'BaseType_t' is initialized (use decltype instead) task.h:109:22:
error: 'TaskHookFunction_t' was not declared in this scope :typedef
BaseType_t (*TaskHookFunction_t)( void * ) timers.h:In file included
from FreeRTOS.ino:from task.h:136:2: error: 'BaseType_t' does not name
a type :BaseType_t xOverflowCount task.h:137:2: error: 'TickType_t'
does not name a type :TickType_t xTimeOnEntering task.h:146:2: error:
'uint32_t' does not name a type :uint32_t ulLengthInBytes
task.h:147:2: error: 'uint32_t' does not name a type :uint32_t
ulParameters task.h:155:2: error: 'TaskFunction_t' does not name a
type :TaskFunction_t pvTaskCode task.h:157:2: error: 'uint16_t' does
not name a type :uint16_t usStackDepth task.h:159:2: error:
'UBaseType_t' does not name a type :UBaseType_t uxPriority
task.h:160:2: error: 'StackType_t' does not name a type :StackType_t
*puxStackBuffer task.h:161:27: error: 'portNUM_CONFIGURABLE_REGIONS' was not declared in this scope :MemoryRegion_t xRegions[
portNUM_CONFIGURABLE_REGIONS ] task.h:170:2: error: 'UBaseType_t' does
not name a type :UBaseType_t xTaskNumber; * A number unique to the
task. * task.h:172:2: error: 'UBaseType_t' does not name a type
:UBaseType_t uxCurrentPriority; * The priority at which the task was
running (may be inherited) when the structure was populated. *
task.h:173:2: error: 'UBaseType_t' does not name a type :UBaseType_t
uxBasePriority; * The priority to which the task will return if the
task's current priority has been inherited to avoid unbounded priority
inversion when obtaining a mutex. Only valid if configUSE_MUTEXES is
defined as 1 in FreeRTOSConfig.h. * timers.h:In file include
If you read the error messages, the issue is explained clearly.
include Arduino_FreeRTOS.h must appear first.
Your example shows it included last.
Put it first and the errors will go away.
Arduino_FreeRTOS.h includes many definitions that are used in other places, hence the need for it to be first.
Unrelated to your question, but using delay() is nasty as it consumes CPU cycles needlessly. Try vTaskDelay() as alternative which defers (or blocks) to the Scheduler to unblock other Tasks or run the idle Task which is the Arduino loop() function.
The loop() function can then put the CPU to sleep, reducing power consumption. See the feilipu.me post on topic for more.
vTaskDelay() counts Ticks, so hence the need to divide by the Tick period in milliseconds. i.e.
Time in ms / portTICK_PERIOD_MS = Ticks
#include <Arduino_FreeRTOS.h>
#include <croutine.h>
#include <event_groups.h>
#include <FreeRTOSConfig.h>
#include <FreeRTOSVariant.h>
#include <list.h>
#include <mpu_wrappers.h>
#include <portable.h>
#include <portmacro.h>
#include <projdefs.h>
#include <queue.h>
#include <semphr.h>
#include <Stack_Macros.h>
#include <task.h>
#include <timers.h>
void setup()
{
}
void loop()
{
}
Found the issue, the includes where in the wrong order: dont know why;).
You cant only include freeRTOS in MS VS you need to correct the order of the includes by yourself.
Here is the correct order:
#include <Arduino_FreeRTOS.h>
#include <croutine.h>
#include <event_groups.h>
#include <FreeRTOSConfig.h>
#include <FreeRTOSVariant.h>
#include <list.h>
#include <mpu_wrappers.h>
#include <portable.h>
#include <portmacro.h>
#include <projdefs.h>
#include <queue.h>
#include <semphr.h>
#include <StackMacros.h>
#include <task.h>
#include <timers.h>
I'm not sure about the Arduino code you are referring to, but normally there is no reason to include FreeRTOSConfig.h directly - instead include FreeRTOS.h first, and that will get the ordering of the port layer files and FreeRTOSConfig.h files correct for you, then include the header files that contain the API functions you want to use.
I want to test the SIMD intrinsic of xeon phi. So I wrote following code:
#pragma offload target(mic) in(a:length(N))
#pragma omp parallel for
for(int i=0;i<16;++i){
__m512i p ;
p = _mm512_loadunpackhi_epi64(p, &a[i*10]);
}
When compiling, icpc gave me undefined reference error
/tmp/icpc3kLMRg.o: In function `main':
./src/test.cc:(.text+0x2e8): undefined reference to `_mm512_extloadunpackhi_epi64'
make: *** [test.cc] Error 1
Is there any other header files to be included besides immintrin.h
The compiler compiles for the host as well as for the xeon phi. The host doesn't support the function you are trying to call so you need to do this:
#ifdef __MIC__
#pragma offload target(mic) in(a:length(N))
#pragma omp parallel for
for(int i=0;i<16;++i){
__m512i p ;
p = _mm512_loadunpackhi_epi64(p, &a[i*10]);
}
#else
<do something differnt on the host (or nothing)>
#endif
I would like to know whether I am missing something:
//this is test.idl
typedef foo foo_t;
// end of test.idl
When I compile test.idl with the following command:
midl /W4 test.idl
I get this output
Microsoft (R) 32b/64b MIDL Compiler Version 6.00.0366
Copyright (c) Microsoft Corporation 1991-2002. All rights reserved.
Processing .\test.idl
test.idl
and I get a wrong test.h (at the bottom of this message) which has
only
typedef foo_t;
where the unknown foo type was silently discarded.
I would have expected an error message stating "foo is an unknown
type", am I wrong?
Do I need to pass any particular arguments to the MIDL command?
I got the same result with MIDL compiler version 7.00.0500
/* this ALWAYS GENERATED file contains the definitions for the
interfaces */
/* File created by MIDL compiler version 6.00.0366 */
/* at Thu Nov 13 11:47:40 2008
*/
/* Compiler settings for test.idl:
Oicf, W4, Zp8, env=Win32 (32b run)
protocol : dce , ms_ext, c_ext, robust
error checks: allocation ref bounds_check enum stub_data
VC __declspec() decoration level:
__declspec(uuid()), __declspec(selectany), __declspec
(novtable)
DECLSPEC_UUID(), MIDL_INTERFACE()
*/
//##MIDL_FILE_HEADING( )
#pragma warning( disable: 4049 ) /* more than 64k source lines */
/* verify that the <rpcndr.h> version is high enough to compile this
file*/
#ifndef __REQUIRED_RPCNDR_H_VERSION__
#define __REQUIRED_RPCNDR_H_VERSION__ 475
#endif
#include "rpc.h"
#include "rpcndr.h"
#ifndef __RPCNDR_H_VERSION__
#error this stub requires an updated version of <rpcndr.h>
#endif // __RPCNDR_H_VERSION__
#ifndef __test_h__
#define __test_h__
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
#pragma once
#endif
/* Forward Declarations */
#ifdef __cplusplus
extern "C"{
#endif
void * __RPC_USER MIDL_user_allocate(size_t);
void __RPC_USER MIDL_user_free( void * );
/* interface __MIDL_itf_test_0000 */
/* [local] */
typedef foo_t;
extern RPC_IF_HANDLE __MIDL_itf_test_0000_v0_0_c_ifspec;
extern RPC_IF_HANDLE __MIDL_itf_test_0000_v0_0_s_ifspec;
/* Additional Prototypes for ALL interfaces */
/* end of Additional Prototypes */
#ifdef __cplusplus
}
#endif
#endif
I submitted the following bug to Microsoft:
MIDL does not report an error if a typedef uses an unknown type