renamed decoder plugin sources

Make it X_decoder_plugin.c.

src/decoder/modplug_decoder_plugin.c

@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2003-2010 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 "decoder_api.h"
+
+#include <glib.h>
+#include <modplug.h>
+#include <assert.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "modplug"
+
+enum {
+	MODPLUG_FRAME_SIZE = 4096,
+	MODPLUG_PREALLOC_BLOCK = 256 * 1024,
+	MODPLUG_READ_BLOCK = 128 * 1024,
+	MODPLUG_FILE_LIMIT = 100 * 1024 * 1024,
+};
+
+static GByteArray *mod_loadfile(struct decoder *decoder, struct input_stream *is)
+{
+	unsigned char *data;
+	GByteArray *bdatas;
+	size_t ret;
+
+	if (is->size == 0) {
+		g_warning("file is empty");
+		return NULL;
+	}
+
+	if (is->size > MODPLUG_FILE_LIMIT) {
+		g_warning("file too large");
+		return NULL;
+	}
+
+	//known/unknown size, preallocate array, lets read in chunks
+	if (is->size > 0) {
+		bdatas = g_byte_array_sized_new(is->size);
+	} else {
+		bdatas = g_byte_array_sized_new(MODPLUG_PREALLOC_BLOCK);
+	}
+
+	data = g_malloc(MODPLUG_READ_BLOCK);
+
+	while (true) {
+		ret = decoder_read(decoder, is, data, MODPLUG_READ_BLOCK);
+		if (ret == 0) {
+			if (input_stream_eof(is))
+				/* end of file */
+				break;
+
+			/* I/O error - skip this song */
+			g_free(data);
+			g_byte_array_free(bdatas, true);
+			return NULL;
+		}
+
+		if (bdatas->len + ret > MODPLUG_FILE_LIMIT) {
+			g_warning("stream too large\n");
+			g_free(data);
+			g_byte_array_free(bdatas, TRUE);
+			return NULL;
+		}
+
+		g_byte_array_append(bdatas, data, ret);
+	}
+
+	g_free(data);
+
+	return bdatas;
+}
+
+static void
+mod_decode(struct decoder *decoder, struct input_stream *is)
+{
+	ModPlugFile *f;
+	ModPlug_Settings settings;
+	GByteArray *bdatas;
+	struct audio_format audio_format;
+	int ret;
+	char audio_buffer[MODPLUG_FRAME_SIZE];
+	enum decoder_command cmd = DECODE_COMMAND_NONE;
+
+	bdatas = mod_loadfile(decoder, is);
+
+	if (!bdatas) {
+		g_warning("could not load stream\n");
+		return;
+	}
+
+	ModPlug_GetSettings(&settings);
+	/* alter setting */
+	settings.mResamplingMode = MODPLUG_RESAMPLE_FIR; /* RESAMP */
+	settings.mChannels = 2;
+	settings.mBits = 16;
+	settings.mFrequency = 44100;
+	/* insert more setting changes here */
+	ModPlug_SetSettings(&settings);
+
+	f = ModPlug_Load(bdatas->data, bdatas->len);
+	g_byte_array_free(bdatas, TRUE);
+	if (!f) {
+		g_warning("could not decode stream\n");
+		return;
+	}
+
+	audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
+	assert(audio_format_valid(&audio_format));
+
+	decoder_initialized(decoder, &audio_format,
+			    is->seekable, ModPlug_GetLength(f) / 1000.0);
+
+	do {
+		ret = ModPlug_Read(f, audio_buffer, MODPLUG_FRAME_SIZE);
+		if (ret <= 0)
+			break;
+
+		cmd = decoder_data(decoder, NULL,
+				   audio_buffer, ret,
+				   0);
+
+		if (cmd == DECODE_COMMAND_SEEK) {
+			float where = decoder_seek_where(decoder);
+
+			ModPlug_Seek(f, (int)(where * 1000.0));
+
+			decoder_command_finished(decoder);
+		}
+
+	} while (cmd != DECODE_COMMAND_STOP);
+
+	ModPlug_Unload(f);
+}
+
+static struct tag *
+modplug_stream_tag(struct input_stream *is)
+{
+	ModPlugFile *f;
+	struct tag *ret = NULL;
+	GByteArray *bdatas;
+	char *title;
+
+	bdatas = mod_loadfile(NULL, is);
+	if (!bdatas)
+		return NULL;
+
+	f = ModPlug_Load(bdatas->data, bdatas->len);
+	g_byte_array_free(bdatas, TRUE);
+	if (f == NULL)
+		return NULL;
+
+	ret = tag_new();
+	ret->time = ModPlug_GetLength(f) / 1000;
+
+	title = g_strdup(ModPlug_GetName(f));
+	if (title)
+		tag_add_item(ret, TAG_TITLE, title);
+	g_free(title);
+
+	ModPlug_Unload(f);
+
+	return ret;
+}
+
+static const char *const mod_suffixes[] = {
+	"669", "amf", "ams", "dbm", "dfm", "dsm", "far", "it",
+	"med", "mdl", "mod", "mtm", "mt2", "okt", "s3m", "stm",
+	"ult", "umx", "xm",
+	NULL
+};
+
+const struct decoder_plugin modplug_decoder_plugin = {
+	.name = "modplug",
+	.stream_decode = mod_decode,
+	.stream_tag = modplug_stream_tag,
+	.suffixes = mod_suffixes,
+};