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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* 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 <avdec_private.h>
#include <parser.h>
#include <videoparser_priv.h>
static int parse_frame_mjpa(bgav_video_parser_t * parser,
bgav_packet_t * p,
int64_t prs_orig)
{
uint8_t * ptr;
int i;
uint32_t num = 0;
/* Look for APP1 marker */
ptr = p->data;
for(i = 0; i < p->data_size - 2; i++)
{
num = GAVL_PTR_2_16BE(ptr);
if(num == 0xffe1) // APP1
break;
ptr++;
}
if(num != 0xffe1)
return 0;
/* Parse the mjpa table */
ptr += 2 // Marker
+ 2 // Size
+ 4 // Zero
+ 4 // MJPA
+ 4 // Field size
+ 4; // Padded field size
p->field2_offset = GAVL_PTR_2_32BE(ptr);
return 1;
}
void bgav_video_parser_init_mjpa(bgav_video_parser_t * parser)
{
parser->parse_frame = parse_frame_mjpa;
}
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