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authorViliam Mateicka <viliam.mateicka@gmail.com>2009-10-24 19:01:15 +0200
committerViliam Mateicka <viliam.mateicka@gmail.com>2009-10-24 19:01:15 +0200
commit2bfddd43109171accbb307ec136d5a517e52bfff (patch)
tree959c3a7e05d6fc00cd54978830bdbdd0686c89fc /src/encoder
parent7b343eaf5042513e14f4e2f0d0b698ea7c851e15 (diff)
downloadmpd-2bfddd43109171accbb307ec136d5a517e52bfff.tar.gz
mpd-2bfddd43109171accbb307ec136d5a517e52bfff.tar.xz
mpd-2bfddd43109171accbb307ec136d5a517e52bfff.zip
encoder: new encoder plugin which just pass data through
Diffstat (limited to 'src/encoder')
-rw-r--r--src/encoder/none_encoder.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/src/encoder/none_encoder.c b/src/encoder/none_encoder.c
new file mode 100644
index 000000000..a51f47259
--- /dev/null
+++ b/src/encoder/none_encoder.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2003-2009 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 "encoder_api.h"
+#include "encoder_plugin.h"
+#include "audio_format.h"
+
+#include <assert.h>
+#include <string.h>
+
+#define MAX_BUFFER 32768
+
+struct none_encoder {
+ struct encoder encoder;
+
+ struct audio_format audio_format;
+
+ unsigned char buffer[MAX_BUFFER];
+ size_t buffer_length;
+};
+
+extern const struct encoder_plugin none_encoder_plugin;
+
+static inline GQuark
+none_encoder_quark(void)
+{
+ return g_quark_from_static_string("none_encoder");
+}
+
+static struct encoder *
+none_encoder_init(G_GNUC_UNUSED const struct config_param *param,
+ G_GNUC_UNUSED GError **error)
+{
+ struct none_encoder *encoder;
+
+ encoder = g_new(struct none_encoder, 1);
+ encoder_struct_init(&encoder->encoder, &none_encoder_plugin);
+
+ return &encoder->encoder;
+}
+
+static void
+none_encoder_finish(struct encoder *_encoder)
+{
+ struct none_encoder *encoder = (struct none_encoder *)_encoder;
+
+ g_free(encoder);
+}
+
+static bool
+none_encoder_open(struct encoder *_encoder, struct audio_format *audio_format,
+ G_GNUC_UNUSED GError **error)
+{
+ struct none_encoder *encoder = (struct none_encoder *)_encoder;
+
+ encoder->audio_format = *audio_format;
+ encoder->buffer_length = 0;
+
+ return true;
+}
+
+static void
+none_encoder_close(G_GNUC_UNUSED struct encoder *_encoder)
+{
+}
+
+static bool
+none_encoder_write(struct encoder *_encoder,
+ const void *data, size_t length,
+ G_GNUC_UNUSED GError **error)
+{
+ struct none_encoder *encoder = (struct none_encoder *)_encoder;
+
+ assert(length + encoder->buffer_length < MAX_BUFFER);
+
+ memcpy(encoder->buffer+encoder->buffer_length,
+ data, length);
+
+ encoder->buffer_length += length;
+ return true;
+}
+
+static size_t
+none_encoder_read(struct encoder *_encoder, void *dest, size_t length)
+{
+ struct none_encoder *encoder = (struct none_encoder *)_encoder;
+
+ if (length > encoder->buffer_length)
+ length = encoder->buffer_length;
+
+ memcpy(dest, encoder->buffer, length);
+
+ encoder->buffer_length -= length;
+ memmove(encoder->buffer, encoder->buffer + length,
+ encoder->buffer_length);
+
+ return length;
+}
+
+const struct encoder_plugin none_encoder_plugin = {
+ .name = "none",
+ .init = none_encoder_init,
+ .finish = none_encoder_finish,
+ .open = none_encoder_open,
+ .close = none_encoder_close,
+ .write = none_encoder_write,
+ .read = none_encoder_read,
+};