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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2024 Members of the Gmerlin project
* http://github.com/bplaum
*
* 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 2 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/>.
* *****************************************************************/
#include <stdlib.h>
#include <avdec_private.h>
#include <parser.h>
#include <speex/speex.h>
#include <speex/speex_header.h>
static int parse_frame_speex(bgav_packet_parser_t * parser, bgav_packet_t * p)
{
if(p->duration < 0)
p->duration = parser->afmt->samples_per_frame;
return 1;
}
static void reset_speex(bgav_packet_parser_t * parser)
{
}
void bgav_packet_parser_init_speex(bgav_packet_parser_t * parser)
{
void *dec_state;
SpeexHeader *header;
int frame_size;
/* Set functions */
parser->parse_frame = parse_frame_speex;
parser->reset = reset_speex;
/* Get samples per packet */
header = speex_packet_to_header((char*)parser->ci->codec_header.buf,
parser->ci->codec_header.len);
if(!header)
return;
dec_state = speex_decoder_init(speex_mode_list[header->mode]);
if(!dec_state)
{
free(header);
return;
}
speex_decoder_ctl(dec_state, SPEEX_GET_FRAME_SIZE, &frame_size);
speex_decoder_ctl(dec_state, SPEEX_GET_LOOKAHEAD,
&parser->ci->pre_skip);
parser->afmt->samplerate = header->rate;
parser->afmt->samples_per_frame = header->frames_per_packet * frame_size;
parser->afmt->num_channels = header->nb_channels;
gavl_set_channel_setup(parser->afmt);
speex_decoder_destroy(dec_state);
free(header);
}
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