NxWM: Beginning integration of NxPlayer into Nxwm::MediaPlayer. Gets handle, sets device, and releases handle. Lots more to be done

Kconfig

@@ -1130,6 +1130,20 @@ config NXWM_MEDIAPLAYER
 
 if NXWM_MEDIAPLAYER
 
+menu "NxPlayer Integration"
+
+config NXWM_MEDIAPLAYER_PREFERRED_DEVICE
+	string "Preferred audio device"
+	default "pcm0"
+	depends on NXPLAYER_INCLUDE_PREFERRED_DEVICE
+	---help---
+		NxPlayer expects us to specify a preferred audio device.  This
+		selection allows us to identify that preferred audio device.  This
+		device is identified by a simple name string that corresponds to an
+		audio device that can be found under /dev/audio.
+
+endmenu # NxPlayer Integration
+
 menu "Media File Configuration"
 
 config NXWM_MEDIAPLAYER_MEDIAPATH
@@ -1166,7 +1180,7 @@ config NXWM_MEDIAPLAYER_FILTER_WAV
 
 config NXWM_MEDIAPLAYER_FILTER_PCM
 	bool "Accept .pcm extension"
-	default y
+	default n
 	select NXWM_MEDIAPLAYER_FILTER
 
 config NXWM_MEDIAPLAYER_FILTER_MP3

nxwm/include/cmediaplayer.hxx

@@ -115,6 +115,7 @@ namespace NxWM
      * Media player state data.
      */
 
+    FAR struct nxplayer_s   *m_player;     /**< NxPlayer handle */
     enum EMediaPlayerState   m_state;      /**< Media player current state */
     enum EMediaPlayerState   m_prevState;  /**< Media player previous state */
     enum EPendingRelease     m_pending;    /**< Pending image release event */
@@ -184,7 +185,21 @@ namespace NxWM
      * Load media files into the list box.
      */
 
-    inline bool showMediaFiles(const char *mediaPath);
+    inline bool showMediaFiles(FAR const char *mediaPath);
+
+#ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
+    /**
+     * Set the preferred audio device for playback
+     */
+
+    inline bool setDevice(FAR const char *devPath);
+#endif
+
+    /**
+     * Configure the NxPlayer.
+     */
+
+   inline bool configureNxPlayer(void);
 
     /**
      * Create the Media Player controls.  Only start as part of the application

nxwm/include/nxwmconfig.hxx

@@ -632,6 +632,10 @@
  *   Default: CONFIG_NXWM_DEFAULT_FONTID
  */
 
+#ifndef CONFIG_NXWM_MEDIAPLAYER_PREFERRED_DEVICE
+#  define CONFIG_NXWM_MEDIAPLAYER_PREFERRED_DEVICE "pcm0"
+#endif
+
 #ifndef CONFIG_NXWM_MEDIAPLAYER_MEDIAPATH
 #  define CONFIG_NXWM_MEDIAPLAYER_MEDIAPATH "/mnt/sdcard"
 #endif

nxwm/src/cmediaplayer.cxx

@@ -42,9 +42,12 @@
 
 #include <cstdio>
 #include <cstring>
+#include <cerrno>
 #include <dirent.h>
 #include <debug.h>
 
+#include <apps/nxplayer.h>
+
 #include "cwidgetcontrol.hxx"
 
 #include "nxwmconfig.hxx"
@@ -108,6 +111,7 @@ CMediaPlayer::CMediaPlayer(CTaskbar *taskbar, CApplicationWindow *window)
 
   // Initial state is stopped
 
+  m_player         = (FAR struct nxplayer_s   *)0;
   m_state          = MPLAYER_STOPPED;
   m_prevState      = MPLAYER_STOPPED;
   m_pending        = PENDING_NONE;
@@ -199,6 +203,13 @@ CMediaPlayer::~CMediaPlayer(void)
       delete m_volumeBitmap;
     }
 
+  // Release the NxPlayer
+
+  if (m_player)
+    {
+      nxplayer_release(m_player);
+    }
+
   // Although we didn't create it, we are responsible for deleting the
   // application window
 
@@ -250,10 +261,19 @@ NXWidgets::CNxString CMediaPlayer::getName(void)
 
 bool CMediaPlayer::run(void)
 {
-  // Create the widgets (if we have not already done so)
+  // Configure the NxPlayer and create the widgets (if we have not already
+  // done so)
 
-  if (!m_listbox)
+  if (!m_player)
     {
+      // Configure the NxPlayer library and player thread
+
+      if (!configureNxPlayer())
+        {
+          gdbg("ERROR: Failed to configure NxPlayer\n");
+          return false;
+        }
+
       // Create the widgets
 
       if (!createPlayer())
@@ -485,6 +505,92 @@ inline bool CMediaPlayer::showMediaFiles(const char *mediaPath)
   return true;
 }
 
+/**
+ * Set the preferred audio device for playback
+ */
+
+#ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
+bool CMediaPlayer::setDevice(FAR const char *devPath)
+{
+  // First try to open the file using the device name as provided
+
+  int ret = nxplayer_setdevice(m_player, devPath);
+  if (ret == -ENOENT)
+    {
+      char path[32];
+
+      // Append the device path and try again
+
+#ifdef CONFIG_AUDIO_CUSTOM_DEV_PATH
+#ifdef CONFIG_AUDIO_DEV_ROOT
+      std::snprintf(path, sizeof(path), "/dev/%s", devPath);
+#else
+      std::snprintf(path, sizeof(path), CONFIG_AUDIO_DEV_PATH "/%s", devPath);
+#endif
+#else
+      std::snprintf(path, sizeof(path), "/dev/audio/%s", devPath);
+#endif
+      ret = nxplayer_setdevice(m_player, path);
+    }
+
+  // Test if the device file exists
+
+  if (ret == -ENOENT)
+    {
+      // Device doesn't exit.  Report an error
+
+      gdbg("ERROR: Device %s not found\n", devPath);
+      return false;
+    }
+
+  // Test if is is an audio device
+
+  if (ret == -ENODEV)
+    {
+      gdbg("ERROR: Device %s is not an audio device\n", devPath);
+      return false;
+    }
+
+  if (ret < 0)
+    {
+      gdbg("ERROR: Error selecting device %s\n", devPath);
+      return false;
+    }
+
+  // Device set successfully
+
+  return true;
+}
+#endif
+
+/**
+ * Configure the NxPlayer.
+ */
+
+bool CMediaPlayer::configureNxPlayer(void)
+{
+  // Get the NxPlayer handle
+
+  m_player = nxplayer_create();
+  if (!m_player)
+    {
+      gdbg("ERROR: Failed get NxPlayer handle\n");
+      return false;
+    }
+
+#ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
+  // Set the NxPlayer audio device
+
+  if (!setDevice(CONFIG_NXWM_MEDIAPLAYER_PREFERRED_DEVICE))
+    {
+      gdbg("ERROR: Failed select NxPlayer audio device\n");
+      return false;
+    }
+#endif
+
+  return true;
+}
+
 /**
  * Create the media player widgets.  Only start as part of the application
  * start method.
@@ -499,7 +605,7 @@ bool CMediaPlayer::createPlayer(void)
                                   CONFIG_NXWM_TRANSPARENT_COLOR);
   if (!m_font)
     {
-      gdbg("ERROR failed to create font\n");
+      gdbg("ERROR: Failed to create font\n");
       return false;
     }