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More work on implementing remote protocol

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Rework things so that we negotiate buffer pools beforehand and only pass
buffer ids around We can then remove the refcount of buffers, events and
commands.
More work on buffer reuse
Use the node state changes to trigger the next step in the configuration
sequence.
Move most of the client-node to a plugin
Do buffer allocation in the port link.
This commit is contained in:
Wim Taymans 2016-08-02 16:34:44 +02:00
parent 05829f33e6
commit 3ace7e9648
36 changed files with 1780 additions and 1450 deletions
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53
spa/include/spa/node.h
View file

@ -26,6 +26,24 @@ extern "C" {
typedef struct _SpaNode SpaNode;
/**
* SpaNodeState:
* @SPA_NODE_STATE_INIT: the node is initializing
* @SPA_NODE_STATE_CONFIGURE: the node needs at least one port format
* @SPA_NODE_STATE_READY: the node is ready for memory allocation
* @SPA_NODE_STATE_STREAMING: the node is streaming
* @SPA_NODE_STATE_ERROR: the node is in error
*/
typedef enum {
SPA_NODE_STATE_INIT,
SPA_NODE_STATE_CONFIGURE,
SPA_NODE_STATE_READY,
SPA_NODE_STATE_PAUSED,
SPA_NODE_STATE_STREAMING,
SPA_NODE_STATE_ERROR
} SpaNodeState;
#include <spa/defs.h>
#include <spa/plugin.h>
#include <spa/props.h>
@ -62,18 +80,19 @@ typedef enum {
* SpaInputInfo:
* @port_id: the port id
* @flags: extra flags
* @buffer_id: a buffer id
* @offset: offset of data in @id
* @size: size of data in @id
* @id: a buffer id
* @status: status
*
* Input information for a node.
*/
typedef struct {
uint32_t port_id;
SpaInputFlags flags;
uint32_t buffer_id;
off_t offset;
size_t size;
uint32_t id;
SpaResult status;
} SpaInputInfo;
@ -96,36 +115,22 @@ typedef enum {
* SpaOutputInfo:
* @port_id: the port id
* @flags: extra flags
* @buffer_id: a buffer id will be set
* @offset: offset to get
* @size: size to get
* @id: a buffer id will be set
* @event: an event
* @status: a status
*
* Output information for a node.
*/
typedef struct {
uint32_t port_id;
SpaOutputFlags flags;
uint32_t buffer_id;
off_t offset;
size_t size;
uint32_t id;
SpaResult status;
} SpaOutputInfo;
/**
* SpaNodeState:
* @SPA_NODE_STATE_INIT: the node is initializing
* @SPA_NODE_STATE_CONFIGURE: the node needs at least one port format
* @SPA_NODE_STATE_READY: the node is ready for memory allocation
* @SPA_NODE_STREAMING: the node is streaming
*/
typedef enum {
SPA_NODE_STATE_INIT,
SPA_NODE_STATE_CONFIGURE,
SPA_NODE_STATE_READY,
SPA_NODE_STATE_STREAMING
} SpaNodeState;
/**
* SpaEventCallback:
* @node: a #SpaNode emiting the event
@ -371,6 +376,9 @@ struct _SpaNode {
* will be set by @node so that buffers will be reused when the refcount
* reaches 0.
*
* Passing %NULL as @buffers will remove the reference that the port has
* on the buffers.
*
* Returns: #SPA_RESULT_OK on success
*/
SpaResult (*port_use_buffers) (SpaNode *node,
@ -404,6 +412,12 @@ struct _SpaNode {
SpaBuffer **buffers,
unsigned int *n_buffers);
SpaResult (*port_reuse_buffer) (SpaNode *node,
uint32_t port_id,
uint32_t buffer_id,
off_t offset,
size_t size);
SpaResult (*port_get_status) (SpaNode *node,
uint32_t port_id,
const SpaPortStatus **status);
@ -473,6 +487,7 @@ struct _SpaNode {
#define spa_node_port_set_props(n,...) (n)->port_set_props((n),__VA_ARGS__)
#define spa_node_port_use_buffers(n,...) (n)->port_use_buffers((n),__VA_ARGS__)
#define spa_node_port_alloc_buffers(n,...) (n)->port_alloc_buffers((n),__VA_ARGS__)
#define spa_node_port_reuse_buffer(n,...) (n)->port_reuse_buffer((n),__VA_ARGS__)
#define spa_node_port_get_status(n,...) (n)->port_get_status((n),__VA_ARGS__)
#define spa_node_port_push_input(n,...) (n)->port_push_input((n),__VA_ARGS__)
#define spa_node_port_pull_output(n,...) (n)->port_pull_output((n),__VA_ARGS__)