finally merging everyting together, thanks @buldo for your windows work

QOpenHD.pro

@@ -32,7 +32,6 @@ CONFIG(debug, debug|release) {
 } else:CONFIG(release, debug|release) {
     DEFINES += QT_NO_DEBUG
     CONFIG += installer
-    CONFIG += force_debug_info
     DESTDIR = $${OUT_PWD}/release
     DEFINES += QMLJSDEBUGGER
 }
@@ -103,6 +102,12 @@ LinuxBuild {
     include(app/videostreaming/gstreamer/gst_video.pri)
 }
 
+# gst Qt plugins in windows is hard
+WindowsBuild {
+    # In future is better to use windows decoding and rendering api
+    include(app/videostreaming/avcodec/avcodec_video.pri)
+}
+
 # All Generic files / files that literally have 0!! dependencies other than qt
 SOURCES += \
     app/adsb/adsbvehicle.cpp \
@@ -125,6 +130,7 @@ HEADERS += \
     app/common/util_fs.h \
     app/common/StringHelper.hpp \
     app/common/TimeHelper.hpp \
+    app/common/SchedulingHelper.hpp \
     app/logging/hudlogmessagesmodel.h \
     app/logging/loghelper.h \
     app/logging/logmessagesmodel.h \
@@ -234,17 +240,6 @@ JetsonBuild {
 WindowsBuild {
     # This aparently makes qt use absolute paths, otherwise we get compile issues ?
     QMAKE_PROJECT_DEPTH = 0
-    #include(app/videostreaming/gstreamer/gst_video.pri)
-    #include(app/videostreaming/avcodec/avcodec_video.pri)
-    # Path to FFmpeg headers
-    #   INCLUDEPATH += C:/ffmpeg
-    #INCLUDEPATH += C:/ffmpeg/libavutil/
-
-    # Path to FFmpeg libraries
-    #LIBS += -LC:/ffmpeg/lib
-
-    # Link against the required FFmpeg libraries
-    #LIBS += -lavcodec -lavformat -lavutil -lswscale -lswresample
 }
 
 AndroidBuild {

README.windows.md

@@ -0,0 +1,10 @@
+How to:
+1. Create folder `build-libs-windows` in repository root
+2. Download and extract `ffmpeg-release-full-shared.7z` into `build-libs-windows` ( from https://www.gyan.dev/ffmpeg/builds/ )
+   Maybe it will be good idea to fix version and put this version in download script
+3. Rename extracted folder to `ffmpeg`. Chech that `ffmpeg` folder contains `bin`, `include`, etc. folders.
+4. Trying to use prebuild angle from https://github.com/mmozeiko/build-angle
+   Download latest release and extract to `build-libs-windows`.
+   Maybe it better to clone/adjust this build pipeline
+
+5. After build you need to copy `bin` folders content to folder with `.exe`

app/common/SchedulingHelper.hpp

@@ -6,41 +6,29 @@
 #define WIFIBROADCAST_SCHEDULINGHELPER_H
 
 #include <pthread.h>
-#include <sys/resource.h>
 #include <unistd.h>
 #include <string>
 #include <iostream>
 #include <qdebug.h>
+#ifdef __windows__
+#include <windows.h>
+#endif
 
 namespace SchedulingHelper {
 
-static void printCurrentThreadPriority(const std::string& name) {
-  int which = PRIO_PROCESS;
-  id_t pid = (id_t) getpid();
-  int priority = getpriority(which, pid);
-  //wifibroadcast::log::get_default()->debug("{} has priority {}",name,priority);
-}
-
-static void printCurrentThreadSchedulingPolicy(const std::string& name) {
-  auto self = pthread_self();
-  int policy;
-  sched_param param{};
-  auto result = pthread_getschedparam(self, &policy, &param);
-  if (result != 0) {
-     qDebug()<<"Cannot get thread scheduling policy";
-  }
-  //wifibroadcast::log::get_default()->debug("{} has policy {} and priority {}",name,policy,param.sched_priority);
-}
-
 // this thread should run as close to realtime as possible
 static void setThreadParamsMaxRealtime(pthread_t target) {
-  int policy = SCHED_FIFO;
+
+// TODO: windows.h contains THREAD_PRIORITY_TIME_CRITICAL but not working
+#ifndef __windows__
+    int policy = SCHED_FIFO;
   sched_param param{};
   param.sched_priority = sched_get_priority_max(policy);
   auto result = pthread_setschedparam(target, policy, &param);
   if (result != 0) {
     qDebug()<<"cannot set ThreadParamsMaxRealtime";
   }
+#endif
 }
 
 static void setThreadParamsMaxRealtime() {

app/main.cpp

@@ -235,6 +235,10 @@ static void android_check_permissions(){
 
 int main(int argc, char *argv[]) {
 
+#if defined(__windows__)
+    QCoreApplication::setAttribute(Qt::AA_UseOpenGLES);
+#endif
+
     QCoreApplication::setOrganizationName("OpenHD");
     QCoreApplication::setOrganizationDomain("openhd");
     QCoreApplication::setApplicationName("QOpenHD");

app/telemetry/tutil/geodesi_helper.cpp

@@ -3,7 +3,7 @@
 #include <QtGlobal>
 
 extern "C" {
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) || defined(Q_OS_WIN)
 #include "lib/geographiclib-c-2.0/src/geodesic.h"
 #else
 #include "geodesic.h"

app/videostreaming/avcodec/avcodec_helper.hpp

@@ -16,8 +16,7 @@ extern "C" {
 #include <libavutil/imgutils.h>
 #include <libavutil/buffer.h>
 #include <libavutil/frame.h>
-//
-#include "libavutil/frame.h"
+#include <libavutil/mem.h>
 #include "libavutil/hwcontext.h"
 #include "libavutil/hwcontext_drm.h"
 #include "libavutil/pixdesc.h"

app/videostreaming/avcodec/avcodec_video.pri

@@ -5,6 +5,18 @@ LIBS += -LC:/ffmpeg/lib -lavcodec -lavutil -lavformat
 # TODO dirty
 LIBS += -lGLESv2 -lEGL
 
+win32 {
+    INCLUDEPATH += $$PWD/../../../build-libs-windows/ffmpeg/include
+    LIBS += -L$$PWD/../../../build-libs-windows/ffmpeg/lib -lavcodec -lavutil -lavformat
+
+    INCLUDEPATH += $$PWD/../../../build-libs-windows/angle-x64/include
+    LIBS += -L$$PWD/../../../build-libs-windows/angle-x64/bin -lGLESv2 -lEGL
+
+    DEFINES += EGL_EGLEXT_PROTOTYPES
+    DEFINES += GL_GLEXT_PROTOTYPES
+#    LIBS += -lOpengl32
+}
+
 # just using the something something webrtc from stephen was the easiest solution.
 #include(../../lib/h264/h264.pri)
 

app/videostreaming/avcodec/color_helper.h

@@ -9,14 +9,20 @@
 #include <cstdint>
 
 static uint32_t create_pixel_rgba(uint8_t r,uint8_t g,uint8_t b,uint8_t a){
-  uint8_t rgba[4];
-  rgba[0]=r;
-  rgba[1]=g;
-  rgba[2]=b;
-  rgba[3]=a;
-  uint32_t ret;
-  memcpy(&ret,rgba,4);
-  return ret;
+#ifdef __windows__
+    return ((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)g << 8) | (uint32_t)r;
+#else
+    uint8_t rgba[4];
+    rgba[0]=r;
+    rgba[1]=g;
+    rgba[2]=b;
+    rgba[3]=a;
+    uint32_t ret;
+    memcpy(&ret,rgba,4);
+    return ret;
+#endif
+
+
 }
 
 // --------------------------------------------------- from drm-howto ---------------------------------------------------

app/videostreaming/avcodec/gl/gl_shaders.cpp

@@ -111,9 +111,9 @@ static const GLchar* fragment_shader_source_NV12 =
 	"		texture2D(s_texture_uv,v_texCoord).xy\n"
 	"	);"
 	"	mat3 colorMatrix = mat3(\n"
-	"		1.1644f, 1.1644f, 1.1644f,\n"
-	"        0.0f, -0.3917f, 2.0172f,\n"
-	"        1.5960f, -0.8129f, 0.0f"
+    "		1.1644, 1.1644, 1.1644,\n"
+    "        0.0, -0.3917, 2.0172,\n"
+    "        1.5960, -0.8129, 0.0"
 	"		);\n"
     "	gl_FragColor = vec4(clamp(YCbCr*colorMatrix,0.0,1.0), 1.0);\n"
 	"}\n";

app/videostreaming/avcodec/gl/gl_videorenderer.cpp

@@ -5,7 +5,12 @@
 #include "gl_videorenderer.h"
 #include "../color_helper.h"
 #include <GL/gl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2ext.h>
 #include <chrono>
+#include "../avcodec_helper.hpp"
+#include <libavutil/error.h>
+#include <vector>
 
 static EGLint texgen_attrs[] = {
 	EGL_DMA_BUF_PLANE0_FD_EXT,
@@ -34,9 +39,10 @@ static void create_rgba_texture(GLuint& tex_id,uint32_t color_rgba){
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
   const int width=1280;
   const int height=720;
-  uint8_t pixels[4*width*height];
-  fillFrame(pixels,width,height,width*4, color_rgba);
-  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+  std::vector<uint8_t> pixels(4*width*height);
+
+  fillFrame(pixels.data(), width, height, width*4, color_rgba);
+  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels.data());
   glBindTexture(GL_TEXTURE_2D,0);
 }
 

app/videostreaming/avcodec/gl/glhelp.h

@@ -1,6 +1,7 @@
 #ifndef GLHELP_H
 #define GLHELP_H
 
+extern "C" {
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
 // Crude hack for QT on the rpi. Fucking hell, how annyoing this QT crap with redefining opengl is !
@@ -11,12 +12,14 @@
 
 //#include <GLES3/gl32.h>
 //#include <GLES3/gl3ext.h>
-
+}
 #include <cassert>
 
 /// Some gl extensions that don't seem to be part of raspberry gl. 
 /// I think you could get these from other places like GLAD or libepoxy.
 ///
+
+#ifndef __windows__
 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list) __attribute__((weak)); // May not be in libEGL symbol table, resolve manually :(
 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list)
 {
@@ -61,6 +64,8 @@ void glEGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image)
 	}
 	imageTargetTexture2DOES(target, image);
 }
+
+#endif
 /// END Gl Extensions --------------------------------------------------