decoder.h


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#ifndef DECODER_H
#define DECODER_H

#include "audioformat.h"

#include <glib.h>
#include <gio/gio.h>

struct decoder;

struct decoder_plugin {
	const gchar *name;
	const gchar * const *extensions;

	gboolean (*init)(struct decoder *decoder);
	gssize (*decode)(struct decoder *decoder, GInputStream *input,
			GOutputStream *output, GError **error);
	void (*close)(struct decoder *decoder);
};

struct decoder {
	const struct decoder_plugin *decoder;

	unsigned int rate;
	enum audio_format format;
	unsigned int channels;

	gpointer data;
};

gboolean decoder_init(struct decoder *decoder);
gssize decoder_decode(struct decoder *decoder, GInputStream *input,
		GOutputStream *output, GError **error);
void decoder_close(struct decoder *decoder);

const struct decoder_plugin *decoder_get(const gchar *name);
const struct decoder_plugin *decoder_find(const gchar *filename);

static inline GQuark decoder_quark() {
	return g_quark_from_string("decoder");
}

enum {
	DECODER_CODE_ERROR = 0,
	DECODER_CODE_DONE,
};

#endif