/* -*- 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);
}