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60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* veejay - Linux VeeJay
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* (C) 2002-2004 Niels Elburg <elburg@hio.hen.nl>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef VJ_SHM
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#define VJ_SHM
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#include <config.h>
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#include <stdint.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>
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#include <sys/shm.h>
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#ifdef _SYS_SEM_H
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union semun
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{
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int val;
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struct semid_ds *buf;
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unsigned short *array;
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struct seminfo *__buf;
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};
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#endif
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typedef struct video_segment_t
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{
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int semaphore_id;
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int segment_id;
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void *data;
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union semun my_semun;
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struct shmid_ds my_shmid_ds;
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int memory_size;
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} video_segment;
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void del_segment( video_segment *seg);
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int get_segment_id(void *arg);
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int get_semaphore_id(void *arg);
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video_segment *new_segment( int len );
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video_segment *new_c_segment(int semid, int shmid);
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void attach_segment(video_segment *seg, int flag );
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void produce(void *arg, uint8_t *src[3], int len);
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void consume(void *arg, uint8_t *dst[3], int len);
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#endif
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