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Redo the control code

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Make a simple connection object that you can use to send and receive our
commands.
This commit is contained in:
Wim Taymans 2016-10-17 18:29:05 +02:00
parent d8903b708d
commit d711e15f0a
6 changed files with 1007 additions and 1535 deletions
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209
pinos/client/connection.h Normal file
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@ -0,0 +1,209 @@
/* Simple Plugin API
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SPA_CONTROL_H__
#define __SPA_CONTROL_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <spa/defs.h>
#include <spa/props.h>
#include <spa/format.h>
#include <spa/port.h>
#include <spa/node.h>
typedef struct _SpaConnection SpaConnection;
typedef enum {
SPA_CONTROL_CMD_INVALID = 0,
/* client to server */
SPA_CONTROL_CMD_NODE_UPDATE = 1,
SPA_CONTROL_CMD_PORT_UPDATE = 2,
SPA_CONTROL_CMD_NODE_STATE_CHANGE = 3,
SPA_CONTROL_CMD_PORT_STATUS_CHANGE = 4,
/* server to client */
SPA_CONTROL_CMD_ADD_PORT = 32,
SPA_CONTROL_CMD_REMOVE_PORT = 33,
SPA_CONTROL_CMD_SET_FORMAT = 34,
SPA_CONTROL_CMD_SET_PROPERTY = 35,
SPA_CONTROL_CMD_NODE_COMMAND = 36,
/* both */
SPA_CONTROL_CMD_ADD_MEM = 64,
SPA_CONTROL_CMD_REMOVE_MEM = 65,
SPA_CONTROL_CMD_USE_BUFFERS = 66,
SPA_CONTROL_CMD_PROCESS_BUFFER = 67,
SPA_CONTROL_CMD_NODE_EVENT = 68,
} SpaControlCmd;
/* SPA_CONTROL_CMD_NODE_UPDATE */
typedef struct {
#define SPA_CONTROL_CMD_NODE_UPDATE_MAX_INPUTS (1 << 0)
#define SPA_CONTROL_CMD_NODE_UPDATE_MAX_OUTPUTS (1 << 1)
#define SPA_CONTROL_CMD_NODE_UPDATE_PROPS (1 << 2)
uint32_t change_mask;
unsigned int max_input_ports;
unsigned int max_output_ports;
const SpaProps *props;
} SpaControlCmdNodeUpdate;
/* SPA_CONTROL_CMD_PORT_UPDATE */
typedef struct {
SpaDirection direction;
uint32_t port_id;
#define SPA_CONTROL_CMD_PORT_UPDATE_POSSIBLE_FORMATS (1 << 0)
#define SPA_CONTROL_CMD_PORT_UPDATE_FORMAT (1 << 1)
#define SPA_CONTROL_CMD_PORT_UPDATE_PROPS (1 << 2)
#define SPA_CONTROL_CMD_PORT_UPDATE_INFO (1 << 3)
uint32_t change_mask;
unsigned int n_possible_formats;
SpaFormat **possible_formats;
SpaFormat *format;
const SpaProps *props;
const SpaPortInfo *info;
} SpaControlCmdPortUpdate;
/* SPA_CONTROL_CMD_PORT_STATUS_CHANGE */
/* SPA_CONTROL_CMD_NODE_STATE_CHANGE */
typedef struct {
SpaNodeState state;
} SpaControlCmdNodeStateChange;
/* SPA_CONTROL_CMD_ADD_PORT */
typedef struct {
uint32_t seq;
SpaDirection direction;
uint32_t port_id;
} SpaControlCmdAddPort;
/* SPA_CONTROL_CMD_REMOVE_PORT */
typedef struct {
uint32_t seq;
SpaDirection direction;
uint32_t port_id;
} SpaControlCmdRemovePort;
/* SPA_CONTROL_CMD_SET_FORMAT */
typedef struct {
uint32_t seq;
SpaDirection direction;
uint32_t port_id;
SpaPortFormatFlags flags;
SpaFormat *format;
} SpaControlCmdSetFormat;
/* SPA_CONTROL_CMD_SET_PROPERTY */
typedef struct {
uint32_t seq;
SpaDirection direction;
uint32_t port_id;
uint32_t id;
size_t size;
void *value;
} SpaControlCmdSetProperty;
/* SPA_CONTROL_CMD_NODE_COMMAND */
typedef struct {
uint32_t seq;
SpaNodeCommand *command;
} SpaControlCmdNodeCommand;
/* SPA_CONTROL_CMD_ADD_MEM */
typedef struct {
SpaDirection direction;
uint32_t port_id;
uint32_t mem_id;
SpaDataType type;
unsigned int fd_index;
uint32_t flags;
off_t offset;
size_t size;
} SpaControlCmdAddMem;
/* SPA_CONTROL_CMD_REMOVE_MEM */
typedef struct {
SpaDirection direction;
uint32_t port_id;
uint32_t mem_id;
} SpaControlCmdRemoveMem;
typedef struct {
uint32_t mem_id;
off_t offset;
size_t size;
} SpaControlMemRef;
/* SPA_CONTROL_CMD_USE_BUFFERS */
typedef struct {
uint32_t seq;
SpaDirection direction;
uint32_t port_id;
unsigned int n_buffers;
SpaControlMemRef *buffers;
} SpaControlCmdUseBuffers;
/* SPA_CONTROL_CMD_PROCESS_BUFFER */
typedef struct {
SpaDirection direction;
uint32_t port_id;
uint32_t buffer_id;
} SpaControlCmdProcessBuffer;
/* SPA_CONTROL_CMD_NODE_EVENT */
typedef struct {
SpaNodeEvent *event;
} SpaControlCmdNodeEvent;
SpaConnection * spa_connection_new (int fd);
void spa_connection_free (SpaConnection *conn);
SpaResult spa_connection_has_next (SpaConnection *conn);
SpaControlCmd spa_connection_get_cmd (SpaConnection *conn);
SpaResult spa_connection_parse_cmd (SpaConnection *conn,
void *command);
int spa_connection_get_fd (SpaConnection *conn,
unsigned int index,
bool close);
int spa_connection_add_fd (SpaConnection *conn,
int fd,
bool close);
SpaResult spa_connection_add_cmd (SpaConnection *conn,
SpaControlCmd cmd,
void *command);
SpaResult spa_connection_flush (SpaConnection *conn);
SpaResult spa_connection_clear (SpaConnection *conn);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __SPA_CONTROL_H__ */