test/test_vorbis_encoder: program to debug the vorbis encoder

Makefile.am

@@ -1003,6 +1003,26 @@ test_run_encoder_LDADD = $(MPD_LIBS) \
 	$(GLIB_LIBS)
 endif
 
+if ENABLE_VORBIS_ENCODER
+noinst_PROGRAMS += test/test_vorbis_encoder
+test_test_vorbis_encoder_SOURCES = test/test_vorbis_encoder.c \
+	test/stdbin.h \
+	src/conf.c src/tokenizer.c \
+	src/utils.c \
+	src/tag.c src/tag_pool.c \
+	src/audio_check.c \
+	src/audio_format.c \
+	src/audio_parser.c \
+	src/pcm_buffer.c \
+	src/fifo_buffer.c src/growing_fifo.c \
+	$(ENCODER_SRC)
+test_test_vorbis_encoder_CPPFLAGS = $(AM_CPPFLAGS) \
+	$(ENCODER_CFLAGS)
+test_test_vorbis_encoder_LDADD = $(MPD_LIBS) \
+	$(ENCODER_LIBS) \
+	$(GLIB_LIBS)
+endif
+
 test_software_volume_SOURCES = test/software_volume.c \
 	test/stdbin.h \
 	src/audio_check.c \

test/test_vorbis_encoder.c

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2003-2012 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 "conf.h"
+#include "stdbin.h"
+#include "tag.h"
+
+#include <glib.h>
+
+#include <stddef.h>
+#include <unistd.h>
+
+static uint8_t zero[256];
+
+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(G_GNUC_UNUSED int argc, G_GNUC_UNUSED char **argv)
+{
+	G_GNUC_UNUSED bool success;
+
+	/* create the encoder */
+
+	const struct encoder_plugin *plugin = encoder_plugin_get("vorbis");
+	assert(plugin != NULL);
+
+	struct config_param *param = config_new_param(NULL, -1);
+	config_add_block_param(param, "quality", "5.0", -1, NULL);
+
+	struct encoder *encoder = encoder_init(plugin, param, NULL);
+	assert(encoder != NULL);
+
+	/* open the encoder */
+
+	struct audio_format audio_format;
+
+	audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
+	success = encoder_open(encoder, &audio_format, NULL);
+	assert(success);
+
+	/* write a block of data */
+
+	success = encoder_write(encoder, zero, sizeof(zero), NULL);
+	assert(success);
+
+	encoder_to_stdout(encoder);
+
+	/* write a tag */
+
+	success = encoder_pre_tag(encoder, NULL);
+	assert(success);
+
+	encoder_to_stdout(encoder);
+
+	struct tag *tag = tag_new();
+	tag_add_item(tag, TAG_ARTIST, "Foo");
+	tag_add_item(tag, TAG_TITLE, "Bar");
+
+	success = encoder_tag(encoder, tag, NULL);
+	assert(success);
+
+	tag_free(tag);
+
+	encoder_to_stdout(encoder);
+
+	/* write another block of data */
+
+	success = encoder_write(encoder, zero, sizeof(zero), NULL);
+	assert(success);
+
+	/* finish */
+
+	success = encoder_flush(encoder, NULL);
+	assert(success);
+
+	encoder_to_stdout(encoder);
+
+	encoder_close(encoder);
+	encoder_finish(encoder);
+}