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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 <string.h>
#include <config.h>
#include <avdec_private.h>
#include <parser.h>
#include <a52_header.h>
#define FRAME_SAMPLES 1536
static int find_frame_boundary_a52(bgav_packet_parser_t * parser, int * skip)
{
int i;
bgav_a52_header_t h;
for(i = parser->buf.pos; i < parser->buf.len - BGAV_A52_HEADER_BYTES; i++)
{
if(bgav_a52_header_read(&h, parser->buf.buf + i))
{
parser->buf.pos = i;
*skip = h.total_bytes;
return 1;
}
}
return 0;
}
static int parse_frame_a52(bgav_packet_parser_t * parser,
bgav_packet_t * p)
{
if(!(parser->parser_flags & PARSER_HAS_HEADER))
{
bgav_a52_header_t h;
if(!bgav_a52_header_read(&h, p->buf.buf))
return 0;
bgav_a52_header_get_format(&h, parser->afmt);
parser->ci->bitrate = h.bitrate;
}
p->duration = FRAME_SAMPLES;
return 1;
}
#if 0
void cleanup_a52(bgav_packet_parser_t * parser)
{
}
void reset_a52(bgav_packet_parser_t * parser)
{
}
#endif
void bgav_packet_parser_init_a52(bgav_packet_parser_t * parser)
{
parser->find_frame_boundary = find_frame_boundary_a52;
parser->parse_frame = parse_frame_a52;
}
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