/***
    This file is part of snapcast
    Copyright (C) 2015  Johannes Pohl

    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 3 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, see <http://www.gnu.org/licenses/>.
***/

#ifndef OGG_DECODER_H
#define OGG_DECODER_H
#include "decoder.h"
#include <vorbis/codec.h>


class OggDecoder : public Decoder
{
public:
	OggDecoder();
	virtual ~OggDecoder();
	virtual bool decode(msg::PcmChunk* chunk);
	virtual bool setHeader(msg::Header* chunk);

private:
	bool decodePayload(msg::PcmChunk* chunk);

	ogg_sync_state   oy; /* sync and verify incoming physical bitstream */
	ogg_stream_state os; /* take physical pages, weld into a logical
		                  stream of packets */
	ogg_page         og; /* one Ogg bitstream page. Vorbis packets are inside */
	ogg_packet       op; /* one raw packet of data for decode */

	vorbis_info      vi; /* struct that stores all the static vorbis bitstream
		                  settings */
	vorbis_comment   vc; /* struct that stores all the bitstream user comments */
	vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
	vorbis_block     vb; /* local working space for packet->PCM decode */

	ogg_int16_t* convbuffer; /* take 8k out of the data segment, not the stack */
	int convsize;

	char *buffer;
	int  bytes;
};


#endif