output/recorder: move code to encoder/ToOutputStream.cxx

Makefile.am

@@ -1049,6 +1049,7 @@ libencoder_plugins_a_SOURCES = \
 	src/encoder/EncoderAPI.hxx \
 	src/encoder/EncoderInterface.hxx \
 	src/encoder/EncoderPlugin.hxx \
+	src/encoder/ToOutputStream.cxx src/encoder/ToOutputStream.hxx \
 	src/encoder/plugins/OggStream.hxx \
 	src/encoder/plugins/NullEncoderPlugin.cxx \
 	src/encoder/plugins/NullEncoderPlugin.hxx \

src/encoder/ToOutputStream.cxx

+/*
+ * Copyright (C) 2003-2015 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ToOutputStream.hxx"
+#include "EncoderInterface.hxx"
+#include "fs/io/OutputStream.hxx"
+
+bool
+EncoderToOutputStream(OutputStream &os, Encoder &encoder, Error &error)
+{
+	while (true) {
+		/* read from the encoder */
+
+		char buffer[32768];
+		size_t nbytes = encoder_read(&encoder, buffer, sizeof(buffer));
+		if (nbytes == 0)
+			return true;
+
+		/* write everything to the stream */
+
+		if (!os.Write(buffer, nbytes, error))
+			return false;
+	}
+}

src/encoder/ToOutputStream.hxx

+/*
+ * Copyright (C) 2003-2015 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_ENCODER_TO_OUTPUT_STREAM_HXX
+#define MPD_ENCODER_TO_OUTPUT_STREAM_HXX
+
+#include "check.h"
+
+struct Encoder;
+class OutputStream;
+class Error;
+
+bool
+EncoderToOutputStream(OutputStream &os, Encoder &encoder, Error &error);
+
+#endif

src/output/plugins/RecorderOutputPlugin.cxx

@@ -21,6 +21,7 @@
 #include "RecorderOutputPlugin.hxx"
 #include "../OutputAPI.hxx"
 #include "../Wrapper.hxx"
+#include "encoder/ToOutputStream.hxx"
 #include "encoder/EncoderInterface.hxx"
 #include "encoder/EncoderPlugin.hxx"
 #include "encoder/EncoderList.hxx"
@@ -52,11 +53,6 @@ class RecorderOutput {
 	 */
 	FileOutputStream *file;
 
-	/**
-	 * The buffer for encoder_read().
-	 */
-	char buffer[32768];
-
 	RecorderOutput()
 		:base(recorder_output_plugin),
 		 encoder(nullptr),
@@ -148,18 +144,7 @@ RecorderOutput::EncoderToFile(Error &error)
 	assert(file != nullptr);
 	assert(file->IsDefined());
 
-	while (true) {
-		/* read from the encoder */
-
-		size_t size = encoder_read(encoder, buffer, sizeof(buffer));
-		if (size == 0)
-			return true;
-
-		/* write everything into the file */
-
-		if (!file->Write(buffer, size, error))
-			return false;
-	}
+	return EncoderToOutputStream(*file, *encoder, error);
 }
 
 inline bool