/* -*- c-basic-offset: 8; -*- */

/* speex.c: Ogg Speex data handlers for libshout

 *

 *  Copyright (C) 2005 the Icecast team <team@icecast.org>

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Library General Public

 *  License as published by the Free Software Foundation; either

 *  version 2 of the License, or (at your option) any later version.

 *

 *  This library 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

 *  Library General Public License for more details.

 *

 *  You should have received a copy of the GNU Library General Public

 *  License along with this library; if not, write to the Free

 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <speex/speex.h>

#include <speex/speex_header.h>

#include "shout_private.h"

#include "shout_ogg.h"

/* -- local data structures -- */

typedef struct {

	SpeexHeader *sh;

} speex_data_t;

/* -- local prototypes -- */

static int read_speex_page(ogg_codec_t *codec, ogg_page *page);

static void free_speex_data(void *codec_data);

/* -- speex functions -- */

int _shout_open_speex(ogg_codec_t *codec, ogg_page *page)

{

	speex_data_t *speex_data = calloc(1, sizeof(speex_data_t));

	ogg_packet packet;

	if (!speex_data)

		return SHOUTERR_MALLOC;

	ogg_stream_packetout(&codec->os, &packet);

	if (!(speex_data->sh = speex_packet_to_header(packet.packet,packet.bytes))) {

		free_speex_data(speex_data);

		return SHOUTERR_UNSUPPORTED;

	}

	codec->codec_data = speex_data;

	codec->read_page = read_speex_page;

	codec->free_data = free_speex_data;

	return SHOUTERR_SUCCESS;

}

static int read_speex_page(ogg_codec_t *codec, ogg_page *page)

{

	ogg_packet packet;

	speex_data_t *speex_data = codec->codec_data;

	uint64_t samples = 0;

	while (ogg_stream_packetout (&codec->os, &packet) > 0)

		samples += speex_data->sh->frames_per_packet * speex_data->sh->frame_size;

	codec->senttime += ((samples * 1000000) / speex_data->sh->rate);

	return SHOUTERR_SUCCESS;

}

static void free_speex_data(void *codec_data)

{

	speex_data_t *speex_data = (speex_data_t *)codec_data;

	if (speex_data->sh)

		free(speex_data->sh);

	free(speex_data);

}