test/run_encoder, ...: convert to C++

test/run_encoder.cxx

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+/*
+ * Copyright (C) 2003-2013 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 "encoder_list.h"
+#include "encoder_plugin.h"
+#include "audio_format.h"
+#include "audio_parser.h"
+#include "conf.h"
+#include "stdbin.h"
+
+#include <glib.h>
+
+#include <stddef.h>
+#include <unistd.h>
+
+static void
+encoder_to_stdout(struct encoder *encoder)
+{
+	size_t length;
+	static char buffer[32768];
+
+	while ((length = encoder_read(encoder, buffer, sizeof(buffer))) > 0) {
+		G_GNUC_UNUSED ssize_t ignored = write(1, buffer, length);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	GError *error = NULL;
+	struct audio_format audio_format;
+	bool ret;
+	const char *encoder_name;
+	const struct encoder_plugin *plugin;
+	struct encoder *encoder;
+	struct config_param *param;
+	static char buffer[32768];
+
+	/* parse command line */
+
+	if (argc > 3) {
+		g_printerr("Usage: run_encoder [ENCODER] [FORMAT] <IN >OUT\n");
+		return 1;
+	}
+
+	if (argc > 1)
+		encoder_name = argv[1];
+	else
+		encoder_name = "vorbis";
+
+	audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
+
+	/* create the encoder */
+
+	plugin = encoder_plugin_get(encoder_name);
+	if (plugin == NULL) {
+		g_printerr("No such encoder: %s\n", encoder_name);
+		return 1;
+	}
+
+	param = config_new_param(NULL, -1);
+	config_add_block_param(param, "quality", "5.0", -1);
+
+	encoder = encoder_init(plugin, param, &error);
+	if (encoder == NULL) {
+		g_printerr("Failed to initialize encoder: %s\n",
+			   error->message);
+		g_error_free(error);
+		return 1;
+	}
+
+	/* open the encoder */
+
+	if (argc > 2) {
+		ret = audio_format_parse(&audio_format, argv[2],
+					 false, &error);
+		if (!ret) {
+			g_printerr("Failed to parse audio format: %s\n",
+				   error->message);
+			g_error_free(error);
+			return 1;
+		}
+	}
+
+	if (!encoder_open(encoder, &audio_format, &error)) {
+		g_printerr("Failed to open encoder: %s\n",
+			   error->message);
+		g_error_free(error);
+		return 1;
+	}
+
+	encoder_to_stdout(encoder);
+
+	/* do it */
+
+	ssize_t nbytes;
+	while ((nbytes = read(0, buffer, sizeof(buffer))) > 0) {
+		ret = encoder_write(encoder, buffer, nbytes, &error);
+		if (!ret) {
+			g_printerr("encoder_write() failed: %s\n",
+				   error->message);
+			g_error_free(error);
+			return 1;
+		}
+
+		encoder_to_stdout(encoder);
+	}
+
+	ret = encoder_end(encoder, &error);
+	if (!ret) {
+		g_printerr("encoder_flush() failed: %s\n",
+			   error->message);
+		g_error_free(error);
+		return 1;
+	}
+
+	encoder_to_stdout(encoder);
+}