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https://gitlab.freedesktop.org/pipewire/pipewire.git
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92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
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/* Simple Plugin Interface
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __SPI_PORT_H__
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#define __SPI_PORT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <spi/defs.h>
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/**
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* SpiPortInfoFlags:
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* @SPI_PORT_INFO_FLAG_NONE: no flags
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* @SPI_PORT_INFO_FLAG_REMOVABLE: port can be removed
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* @SPI_PORT_INFO_FLAG_OPTIONAL: processing on port is optional
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* @SPI_PORT_INFO_FLAG_CAN_GIVE_BUFFER: the port can give a buffer
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* @SPI_PORT_INFO_FLAG_CAN_USE_BUFFER: the port can use a provided buffer
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* @SPI_PORT_INFO_FLAG_IN_PLACE: the port can process data in-place and will need
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* a writable input buffer when no output buffer is specified.
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* @SPI_PORT_INFO_FLAG_NO_REF: the port does not keep a ref on the buffer
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*/
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typedef enum {
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SPI_PORT_INFO_FLAG_NONE = 0,
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SPI_PORT_INFO_FLAG_REMOVABLE = 1 << 0,
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SPI_PORT_INFO_FLAG_OPTIONAL = 1 << 1,
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SPI_PORT_INFO_FLAG_CAN_GIVE_BUFFER = 1 << 2,
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SPI_PORT_INFO_FLAG_CAN_USE_BUFFER = 1 << 3,
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SPI_PORT_INFO_FLAG_IN_PLACE = 1 << 4,
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SPI_PORT_INFO_FLAG_NO_REF = 1 << 5,
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} SpiPortInfoFlags;
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/**
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* SpiPortInfo
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* @flags: extra port flags
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* @size: minimum size of the buffers or 0 when not specified
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* @align: required alignment of the data
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* @maxbuffering: the maximum amount of bytes that the element will keep
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* around internally
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* @latency: latency on this port in nanoseconds
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* @features: NULL terminated array of extra port features
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*
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*/
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typedef struct {
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SpiPortInfoFlags flags;
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size_t minsize;
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uint32_t align;
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unsigned int maxbuffering;
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uint64_t latency;
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const char **features;
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} SpiPortInfo;
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/**
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* SpiPortStatusFlags:
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* @SPI_PORT_STATUS_FLAG_NONE: no status flags
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* @SPI_PORT_STATUS_FLAG_HAVE_OUTPUT: port has output
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* @SPI_PORT_STATUS_FLAG_NEED_INPUT: port needs input
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*/
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typedef enum {
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SPI_PORT_STATUS_FLAG_NONE = 0,
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SPI_PORT_STATUS_FLAG_HAVE_OUTPUT = 1 << 0,
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SPI_PORT_STATUS_FLAG_NEED_INPUT = 1 << 1,
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} SpiPortStatusFlags;
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typedef struct {
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SpiPortStatusFlags flags;
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} SpiPortStatus;
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* __SPI_PORT_H__ */
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