New 3D OpenGL audio spectrum visualization.

NEWS

@@ -19,6 +19,9 @@ Video Filter:
 libVLC:
  * add equalizer API libvlc_audio_equalizer_* functions
 
+Visualizations:
+ * Add a 3D OpenGL spectrum visualization.
+
 Removed modules:
  * ios video output: use ios2
 

configure.ac

@@ -3942,6 +3942,16 @@ AS_IF([test "${enable_atmo}" != no], [
   ])
 ])
 
+dnl
+dnl  glSpectrum
+dnl
+AC_ARG_ENABLE(glspectrum,
+  [  --enable-glspectrum    3D OpenGL spectrum visualization (default auto)])
+if test "${enable_glspectrum}" != "no" && test "${have_gl}" = "yes"
+then
+    VLC_ADD_PLUGIN([glspectrum])
+    VLC_ADD_LIBS([glspectrum],[$GL_LIBS])
+fi
 
 EXTEND_HELP_STRING([Service Discovery plugins:])
 dnl

modules/LIST

@@ -141,6 +141,7 @@ $Id$
  * gles1: OpenGL ES video output using the generic OpenGL provider
  * gles2: OpenGL ES2 video output using the generic OpenGL provider
  * globalhotkeys: module to catch hotkeys when application doesn't have the focus
+ * glspectrum: 3D OpenGL spectrum visualization
  * glwin32: a opengl provider using DirectX OpenGL
  * glx: GLX extension for OpenGL
  * gme: old console games music playback using Game Music Emu

modules/visualization/Modules.am

@@ -13,3 +13,5 @@ endif
 libvlc_LTLIBRARIES += libvisual_plugin.la
 
 SOURCES_vsxu = vsxu.cpp cyclic_buffer.h
+
+SOURCES_glspectrum = glspectrum.c visual/fft.c visual/fft.h

src/audio_output/filters.c

@@ -296,7 +296,8 @@ static int VisualizationCallback (vlc_object_t *obj, const char *var,
      * separate "visual" (external) and "audio-visual" (internal) variables...
      * The visual plugin should have one submodule per effect instead. */
     if (strcasecmp (mode, "none") && strcasecmp (mode, "goom")
-     && strcasecmp (mode, "projectm") && strcasecmp (mode, "vsxu"))
+     && strcasecmp (mode, "projectm") && strcasecmp (mode, "vsxu")
+     && strcasecmp (mode, "glspectrum"))
     {
         var_Create (obj, "effect-list", VLC_VAR_STRING);
         var_SetString (obj, "effect-list", mode);

src/audio_output/output.c

@@ -252,6 +252,13 @@ audio_output_t *aout_New (vlc_object_t *parent)
         text.psz_string = (char*)"Vovoid VSXu";
         var_Change (aout, "visual", VLC_VAR_ADDCHOICE, &val, &text);
     }
+    /* Look for glspectrum plugin */
+    if (module_exists ("glspectrum"))
+    {
+        val.psz_string = (char *)"glspectrum";
+        text.psz_string = (char*)"3D spectrum";
+        var_Change (aout, "visual", VLC_VAR_ADDCHOICE, &val, &text);
+    }
     str = var_GetNonEmptyString (aout, "effect-list");
     if (str != NULL)
     {