input_stream: convert to C++ (internally)

test/run_decoder.cxx

@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2003-2011 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"
+extern "C" {
+#include "io_thread.h"
+#include "decoder_list.h"
+}
+#include "decoder_api.h"
+#include "InputInit.hxx"
+#include "input_stream.h"
+#include "audio_format.h"
+#include "stdbin.h"
+
+#include <glib.h>
+
+#include <assert.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+static void
+my_log_func(const gchar *log_domain, G_GNUC_UNUSED GLogLevelFlags log_level,
+	    const gchar *message, G_GNUC_UNUSED gpointer user_data)
+{
+	if (log_domain != NULL)
+		g_printerr("%s: %s\n", log_domain, message);
+	else
+		g_printerr("%s\n", message);
+}
+
+struct decoder {
+	const char *uri;
+
+	const struct decoder_plugin *plugin;
+
+	bool initialized;
+};
+
+void
+decoder_initialized(struct decoder *decoder,
+		    const struct audio_format *audio_format,
+		    G_GNUC_UNUSED bool seekable,
+		    G_GNUC_UNUSED float total_time)
+{
+	struct audio_format_string af_string;
+
+	assert(!decoder->initialized);
+	assert(audio_format_valid(audio_format));
+
+	g_printerr("audio_format=%s\n",
+		   audio_format_to_string(audio_format, &af_string));
+
+	decoder->initialized = true;
+}
+
+enum decoder_command
+decoder_get_command(G_GNUC_UNUSED struct decoder *decoder)
+{
+	return DECODE_COMMAND_NONE;
+}
+
+void decoder_command_finished(G_GNUC_UNUSED struct decoder *decoder)
+{
+}
+
+double decoder_seek_where(G_GNUC_UNUSED struct decoder *decoder)
+{
+	return 1.0;
+}
+
+void decoder_seek_error(G_GNUC_UNUSED struct decoder *decoder)
+{
+}
+
+size_t
+decoder_read(G_GNUC_UNUSED struct decoder *decoder,
+	     struct input_stream *is,
+	     void *buffer, size_t length)
+{
+	return input_stream_lock_read(is, buffer, length, NULL);
+}
+
+void
+decoder_timestamp(G_GNUC_UNUSED struct decoder *decoder,
+		  G_GNUC_UNUSED double t)
+{
+}
+
+enum decoder_command
+decoder_data(G_GNUC_UNUSED struct decoder *decoder,
+	     G_GNUC_UNUSED struct input_stream *is,
+	     const void *data, size_t datalen,
+	     G_GNUC_UNUSED uint16_t kbit_rate)
+{
+	G_GNUC_UNUSED ssize_t nbytes = write(1, data, datalen);
+	return DECODE_COMMAND_NONE;
+}
+
+enum decoder_command
+decoder_tag(G_GNUC_UNUSED struct decoder *decoder,
+	    G_GNUC_UNUSED struct input_stream *is,
+	    G_GNUC_UNUSED const struct tag *tag)
+{
+	return DECODE_COMMAND_NONE;
+}
+
+void
+decoder_replay_gain(G_GNUC_UNUSED struct decoder *decoder,
+		    const struct replay_gain_info *replay_gain_info)
+{
+	const struct replay_gain_tuple *tuple =
+		&replay_gain_info->tuples[REPLAY_GAIN_ALBUM];
+	if (replay_gain_tuple_defined(tuple))
+		g_printerr("replay_gain[album]: gain=%f peak=%f\n",
+			   tuple->gain, tuple->peak);
+
+	tuple = &replay_gain_info->tuples[REPLAY_GAIN_TRACK];
+	if (replay_gain_tuple_defined(tuple))
+		g_printerr("replay_gain[track]: gain=%f peak=%f\n",
+			   tuple->gain, tuple->peak);
+}
+
+void
+decoder_mixramp(G_GNUC_UNUSED struct decoder *decoder,
+		char *mixramp_start, char *mixramp_end)
+{
+	g_free(mixramp_start);
+	g_free(mixramp_end);
+}
+
+int main(int argc, char **argv)
+{
+	GError *error = NULL;
+	const char *decoder_name;
+	struct decoder decoder;
+
+	if (argc != 3) {
+		g_printerr("Usage: run_decoder DECODER URI >OUT\n");
+		return 1;
+	}
+
+	decoder_name = argv[1];
+	decoder.uri = argv[2];
+
+	g_thread_init(NULL);
+	g_log_set_default_handler(my_log_func, NULL);
+
+	io_thread_init();
+	if (!io_thread_start(&error)) {
+		g_warning("%s", error->message);
+		g_error_free(error);
+		return EXIT_FAILURE;
+	}
+
+	if (!input_stream_global_init(&error)) {
+		g_warning("%s", error->message);
+		g_error_free(error);
+		return 2;
+	}
+
+	decoder_plugin_init_all();
+
+	decoder.plugin = decoder_plugin_from_name(decoder_name);
+	if (decoder.plugin == NULL) {
+		g_printerr("No such decoder: %s\n", decoder_name);
+		return 1;
+	}
+
+	decoder.initialized = false;
+
+	if (decoder.plugin->file_decode != NULL) {
+		decoder_plugin_file_decode(decoder.plugin, &decoder,
+					   decoder.uri);
+	} else if (decoder.plugin->stream_decode != NULL) {
+		GMutex *mutex = g_mutex_new();
+		GCond *cond = g_cond_new();
+
+		struct input_stream *is =
+			input_stream_open(decoder.uri, mutex, cond, &error);
+		if (is == NULL) {
+			if (error != NULL) {
+				g_warning("%s", error->message);
+				g_error_free(error);
+			} else
+				g_printerr("input_stream_open() failed\n");
+
+			return 1;
+		}
+
+		decoder_plugin_stream_decode(decoder.plugin, &decoder, is);
+
+		input_stream_close(is);
+
+		g_cond_free(cond);
+		g_mutex_free(mutex);
+	} else {
+		g_printerr("Decoder plugin is not usable\n");
+		return 1;
+	}
+
+	decoder_plugin_deinit_all();
+	input_stream_global_finish();
+	io_thread_deinit();
+
+	if (!decoder.initialized) {
+		g_printerr("Decoding failed\n");
+		return 1;
+	}
+
+	return 0;
+}