Merge branch 'v0.16.x'

NEWS

@@ -39,6 +39,8 @@ ver 0.16.5 (2010/??/??)
   - ffmpeg: higher precision timestamps
   - ffmpeg: don't require key frame for seeking
   - fix CUE track seeking
+* output:
+  - openal: auto-fallback to mono if channel count is unsupported
 * player:
   - make seeking to CUE track more reliable
   - the "seek" command works when MPD is stopped

configure.ac

@@ -36,7 +36,15 @@ AC_PROG_MAKE_SET
 PKG_PROG_PKG_CONFIG
 AC_ARG_WITH([systemdsystemunitdir],
 	    AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]),
-	    [], [with_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)])
+	    [], [with_systemdsystemunitdir=no])
+if test "x$with_systemdsystemunitdir" = xyes; then
+	AC_MSG_CHECKING(for systemd)
+	with_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
+	if test -z "$with_systemdsystemunitdir"; then
+		AC_MSG_ERROR([Failed to detect systemd])
+	fi
+	AC_MSG_RESULT([$with_systemdsystemunitdir])
+fi
 if test "x$with_systemdsystemunitdir" != xno; then
 	AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
 fi

src/output/alsa_output_plugin.c

@@ -193,6 +193,9 @@ static snd_pcm_format_t
 get_bitformat(enum sample_format sample_format)
 {
 	switch (sample_format) {
+	case SAMPLE_FORMAT_UNDEFINED:
+		return SND_PCM_FORMAT_UNKNOWN;
+
 	case SAMPLE_FORMAT_S8:
 		return SND_PCM_FORMAT_S8;
 
@@ -209,10 +212,10 @@ get_bitformat(enum sample_format sample_format)
 
 	case SAMPLE_FORMAT_S32:
 		return SND_PCM_FORMAT_S32;
+	}
 
-	default:
+	assert(false);
 	return SND_PCM_FORMAT_UNKNOWN;
-	}
 }
 
 static snd_pcm_format_t

src/output/openal_output_plugin.c

@@ -67,26 +67,26 @@ openal_audio_format(struct audio_format *audio_format)
 			return AL_FORMAT_STEREO16;
 		if (audio_format->channels == 1)
 			return AL_FORMAT_MONO16;
-		break;
+
+		/* fall back to mono */
+		audio_format->channels = 1;
+		return openal_audio_format(audio_format);
 
 	case SAMPLE_FORMAT_S8:
 		if (audio_format->channels == 2)
 			return AL_FORMAT_STEREO8;
 		if (audio_format->channels == 1)
 			return AL_FORMAT_MONO8;
-		break;
+
+		/* fall back to mono */
+		audio_format->channels = 1;
+		return openal_audio_format(audio_format);
 
 	default:
 		/* fall back to 16 bit */
 		audio_format->format = SAMPLE_FORMAT_S16;
-		if (audio_format->channels == 2)
-			return AL_FORMAT_STEREO16;
-		if (audio_format->channels == 1)
-			return AL_FORMAT_MONO16;
-		break;
+		return openal_audio_format(audio_format);
 	}
-
-	return 0;
 }
 
 static bool