/* PipeWire */
/* SPDX-FileCopyrightText: Copyright © 2019 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#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
/** \defgroup pw_buffers Buffers
* Buffer handling
*/
/**
* \ addtogroup pw_buffers
* \ {
*/
#define PW_BUFFERS_FLAG_NONE 0
#define PW_BUFFERS_FLAG_NO_MEM (1 <<0 ) /**< don't allocate buffer memory */
#define PW_BUFFERS_FLAG_SHARED (1 <<1 ) /**< buffers can be shared */
#define PW_BUFFERS_FLAG_DYNAMIC (1 <<2 ) /**< buffers have dynamic data */
#define PW_BUFFERS_FLAG_SHARED_MEM (1 <<3 ) /**< buffers need shared memory */
#define PW_BUFFERS_FLAG_IN_PRIORITY (1 <<4 ) /**< input parameters have priority */
#define PW_BUFFERS_FLAG_ASYNC (1 <<5 ) /**< one of the nodes is async */
struct pw_buffers {
struct pw_memblock *mem; /**< allocated buffer memory */
struct spa_buffer **buffers; /**< port buffers */
uint32_t n_buffers; /**< number of port buffers */
uint32_t flags; /**< 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 */
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