Added encoder and decoder stream converters.

1 files changed, 87 insertions, 0 deletions

diff --git a/decode_converter.c b/decode_converter.c
new file mode 100644
index 0000000..102d059
--- /dev/null
+++ b/decode_converter.c
@@ -0,0 +1,87 @@
+#include "decode_converter.h"
+
+#include <gio/gio.h>
+
+static void decode_converter_interface_init(GConverterIface *iface);
+static void decode_converter_finalize(GObject *object);
+
+static GConverterResult decoder_converter_convert(GConverter *converter,
+		const void *inbuf, gsize inbuf_size, void *outbuf, gsize outbuf_size,
+		GConverterFlags flags, gsize *bytes_read, gsize *bytes_written,
+		GError **error);
+static void decode_converter_reset(GConverter *converter);
+
+static GObjectClass *parent_class = NULL;
+
+G_DEFINE_TYPE_WITH_CODE(DecodeConverter, decode_converter, G_TYPE_OBJECT,
+		G_IMPLEMENT_INTERFACE(G_TYPE_CONVERTER,
+			decode_converter_interface_init));
+
+static void decode_converter_class_init(DecodeConverterClass *klass) {
+	GObjectClass *object_class;
+
+	parent_class = (GObjectClass*)g_type_class_peek_parent(klass);
+	object_class = (GObjectClass*)klass;
+	object_class->finalize = decode_converter_finalize;
+}
+
+static void decode_converter_interface_init(GConverterIface *iface) {
+	iface->convert = decoder_converter_convert;
+	iface->reset = decode_converter_reset;
+}
+
+static void decode_converter_init(DecodeConverter *self) {
+}
+
+static void decode_converter_finalize(GObject *object) {
+	DecodeConverter *dc;
+
+	g_assert(CONVERTER_IS_DECODE(object));
+
+	dc = DECODE_CONVERTER(object);
+
+	dc->decoder.decoder->close(dc->decoder.data);
+}
+
+static GConverterResult decoder_converter_convert(GConverter *converter,
+		const void *inbuf, gsize inbuf_size, void *outbuf, gsize outbuf_size,
+		GConverterFlags flags, gsize *bytes_read, gsize *bytes_written,
+		GError **error) {
+	DecodeConverter *dc;
+
+	dc = (DecodeConverter*)converter;
+
+	gssize size = dc->decoder.decoder->decode(dc->decoder.data, inbuf, inbuf_size, outbuf, outbuf_size);
+
+	if(size < 0) {
+		*error = g_error_new(g_quark_from_string("DecodeConverter"),
+				size, "decode() returned %ld", size);
+		return G_CONVERTER_ERROR;
+	} else if(size == 0) {
+		return G_CONVERTER_FINISHED;
+	}
+	*bytes_read = inbuf_size;
+	*bytes_written = size;
+	return G_CONVERTER_CONVERTED;
+}
+
+static void decode_converter_reset(GConverter *converter) {
+	DecodeConverter *dc;
+
+	dc = (DecodeConverter*)converter;
+
+	dc->decoder.decoder->close(&dc->decoder.data);
+}
+
+DecodeConverter *decode_converter_new(const struct decoder_plugin *decoder_plugin) {
+	DecodeConverter *dc;
+
+	dc = (DecodeConverter*)g_object_new(CONVERTER_TYPE_DECODE, NULL);
+
+	g_assert(dc != NULL);
+
+	dc->decoder.decoder = decoder_plugin;
+	dc->decoder.decoder->init(&dc->decoder.data);
+
+	return dc;
+}