buffers.h

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/* PipeWire
 *
 * Copyright © 2019 Wim Taymans
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#ifndef PIPEWIRE_BUFFERS_H
#define PIPEWIRE_BUFFERS_H
 
#include <spa/node/node.h>
 
#include <pipewire/context.h>
#include <pipewire/mem.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define PW_BUFFERS_FLAG_NONE            0
#define PW_BUFFERS_FLAG_NO_MEM          (1<<0)  
#define PW_BUFFERS_FLAG_SHARED          (1<<1)  
#define PW_BUFFERS_FLAG_DYNAMIC         (1<<2)  
#define PW_BUFFERS_FLAG_SHARED_MEM      (1<<3)  
struct pw_buffers {
        struct pw_memblock *mem;        
        struct spa_buffer **buffers;    
        uint32_t n_buffers;             
        uint32_t flags;                 
};
 
int pw_buffers_negotiate(struct pw_context *context, uint32_t flags,
                struct spa_node *outnode, uint32_t out_port_id,
                struct spa_node *innode, uint32_t in_port_id,
                struct pw_buffers *result);
 
void pw_buffers_clear(struct pw_buffers *buffers);
 
#ifdef __cplusplus
}
#endif
 
#endif /* PIPEWIRE_BUFFERS_H */