Added command line option to control omx rotation

src/config.c

@@ -67,6 +67,7 @@ static struct option long_options[] = {
   {"unsupported", no_argument, NULL, 'y'},
   {"quitappafter", no_argument, NULL, '1'},
   {"viewonly", no_argument, NULL, '2'},
+  {"rotate", required_argument, NULL, '3'},
   {"verbose", no_argument, NULL, 'z'},
   {"debug", no_argument, NULL, 'Z'},
   {0, 0, 0, 0},
@@ -220,6 +221,9 @@ static void parse_argument(int c, char* value, PCONFIGURATION config) {
   case '2':
     config->viewonly = true;
     break;
+  case '3':
+    config->rotate = atoi(value);
+    break;
   case 'z':
     config->debug_level = 1;
     break;
@@ -295,6 +299,8 @@ void config_save(char* filename, PCONFIGURATION config) {
     write_config_bool(fd, "quitappafter", config->quitappafter);
   if (config->viewonly)
     write_config_bool(fd, "viewonly", config->viewonly);
+  if (config->rotate != 0)
+    write_config_int(fd, "rotate", config->rotate);
 
   if (strcmp(config->app, "Steam") != 0)
     write_config_string(fd, "app", config->app);
@@ -327,6 +333,7 @@ void config_parse(int argc, char* argv[], PCONFIGURATION config) {
   config->unsupported = false;
   config->quitappafter = false;
   config->viewonly = false;
+  config->rotate = 0;
   config->codec = CODEC_UNSPECIFIED;
 
   config->inputsCount = 0;

src/config.h

@@ -39,6 +39,7 @@ typedef struct _CONFIGURATION {
   bool sops;
   bool localaudio;
   bool fullscreen;
+  int rotate;
   bool unsupported;
   bool quitappafter;
   bool viewonly;

src/main.c

@@ -118,6 +118,18 @@ static void stream(PSERVER_DATA server, PCONFIGURATION config, enum platform sys
   if (config->fullscreen)
     drFlags |= DISPLAY_FULLSCREEN;
 
+  switch (config->rotate) {
+  case 90:
+    drFlags |= DISPLAY_ROTATE_90;
+    break;
+  case 180:
+    drFlags |= DISPLAY_ROTATE_180;
+    break;
+  case 270:
+    drFlags |= DISPLAY_ROTATE_270;
+    break;
+  }
+
   if (config->debug_level > 0) {
     printf("Stream %d x %d, %d fps, %d kbps\n", config->stream.width, config->stream.height, config->stream.fps, config->stream.bitrate);
     connection_debug = true;
@@ -179,6 +191,9 @@ static void help() {
   printf("\t-4k\t\t\tUse 3840x2160 resolution\n");
   printf("\t-width <width>\t\tHorizontal resolution (default 1280)\n");
   printf("\t-height <height>\tVertical resolution (default 720)\n");
+  #if defined(HAVE_PI)
+  printf("\t-rotate <height>\tRotate display: 0/90/180/270 (default 0)\n");
+  #endif
   printf("\t-fps <fps>\t\tSpecify the fps to use (default -1)\n");
   printf("\t-bitrate <bitrate>\tSpecify the bitrate in Kbps\n");
   printf("\t-packetsize <size>\tSpecify the maximum packetsize in bytes\n");

src/video/pi.c

@@ -143,10 +143,22 @@ static int decoder_renderer_setup(int videoFormat, int width, int height, int re
   }
 
   OMX_CONFIG_ROTATIONTYPE rotationType;
+  memset(&rotationType, 0, sizeof(OMX_CONFIG_ROTATIONTYPE));
   rotationType.nSize = sizeof(OMX_CONFIG_ROTATIONTYPE);
   rotationType.nVersion.nVersion = OMX_VERSION;
   rotationType.nPortIndex = 90;
-  rotationType.nRotation = 90;
+  int displayRotation = drFlags & DISPLAY_ROTATE_MASK;
+  switch (displayRotation) {
+  case DISPLAY_ROTATE_90:
+    rotationType.nRotation = 90;
+    break;
+  case DISPLAY_ROTATE_180:
+    rotationType.nRotation = 180;
+    break;
+  case DISPLAY_ROTATE_270:
+    rotationType.nRotation = 270;
+    break;
+  }
 
   if(OMX_SetParameter(ILC_GET_HANDLE(video_render), OMX_IndexConfigCommonRotate, &rotationType) != OMX_ErrorNone) {
     fprintf(stderr, "Failed to set video rotation\n");

src/video/video.h

@@ -24,6 +24,10 @@
 #define DISPLAY_FULLSCREEN 1
 #define ENABLE_HARDWARE_ACCELERATION_1 2
 #define ENABLE_HARDWARE_ACCELERATION_2 4
+#define DISPLAY_ROTATE_MASK 24
+#define DISPLAY_ROTATE_90 8
+#define DISPLAY_ROTATE_180 16
+#define DISPLAY_ROTATE_270 24
 
 #define INIT_EGL 1
 #define INIT_VDPAU 2