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filter-chain: optimize copy plugin

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A copy plugin at the input ports can be replaced by directly writing
into the peer input ports so that we can avoid a memcpy.
This commit is contained in:
Wim Taymans 2022-11-27 11:52:54 +01:00
parent f673764e58
commit 5f000b007d
3 changed files with 55 additions and 20 deletions
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73
src/modules/module-filter-chain.c
View file

@ -505,6 +505,7 @@ struct node {
unsigned int n_deps;
unsigned int visited:1;
unsigned int disabled:1;
};
struct link {
@ -521,6 +522,7 @@ struct graph_port {
const struct fc_descriptor *desc;
void **hndl;
uint32_t port;
unsigned next:1;
};
struct graph_hndl {
@ -599,7 +601,7 @@ static void playback_process(void *d)
struct impl *impl = d;
struct pw_buffer *in, *out;
struct graph *graph = &impl->graph;
uint32_t i, insize = 0, outsize = 0, n_hndl = graph->n_hndl;
uint32_t i, j, insize = 0, outsize = 0, n_hndl = graph->n_hndl;
int32_t stride = 0;
struct graph_port *port;
struct spa_data *bd;
@ -613,7 +615,7 @@ static void playback_process(void *d)
if (in == NULL || out == NULL)
goto done;
for (i = 0; i < in->buffer->n_datas; i++) {
for (i = 0, j = 0; i < in->buffer->n_datas; i++) {
uint32_t offs, size;
bd = &in->buffer->datas[i];
@ -621,12 +623,15 @@ static void playback_process(void *d)
offs = SPA_MIN(bd->chunk->offset, bd->maxsize);
size = SPA_MIN(bd->chunk->size, bd->maxsize - offs);
port = i < graph->n_input ? &graph->input[i] : NULL;
if (port && port->desc)
port->desc->connect_port(*port->hndl, port->port,
SPA_PTROFF(bd->data, offs, void));
while (j < graph->n_input) {
port = &graph->input[j++];
if (port->desc)
port->desc->connect_port(*port->hndl, port->port,
SPA_PTROFF(bd->data, offs, void));
if (!port->next)
break;
}
insize = i == 0 ? size : SPA_MIN(insize, size);
stride = SPA_MAX(stride, bd->chunk->stride);
}
@ -1849,7 +1854,7 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
n_nodes++;
}
graph->n_input = 0;
graph->input = calloc(n_input * n_hndl, sizeof(struct graph_port));
graph->input = calloc(n_input * 16 * n_hndl, sizeof(struct graph_port));
graph->n_output = 0;
graph->output = calloc(n_output * n_hndl, sizeof(struct graph_port));
@ -1869,8 +1874,8 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
} else {
struct spa_json it = *inputs;
while (spa_json_get_string(&it, v, sizeof(v)) > 0) {
gp = &graph->input[graph->n_input];
if (spa_streq(v, "null")) {
gp = &graph->input[graph->n_input++];
gp->desc = NULL;
pw_log_info("ignore input port %d", graph->n_input);
} else if ((port = find_port(first, v, FC_PORT_INPUT)) == NULL) {
@ -1893,14 +1898,41 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
res = -EBUSY;
goto error;
}
pw_log_info("input port %s[%d]:%s",
if (d->flags & FC_DESCRIPTOR_COPY) {
for (j = 0; j < desc->n_output; j++) {
struct port *p = &port->node->output_port[j];
struct link *link;
gp = NULL;
spa_list_for_each(link, &p->link_list, output_link) {
struct port *peer = link->input;
pw_log_info("copy input port %s[%d]:%s",
port->node->name, i,
d->ports[port->p].name);
peer->external = graph->n_input;
gp = &graph->input[graph->n_input++];
gp->desc = peer->node->desc->desc;
gp->hndl = &peer->node->hndl[i];
gp->port = peer->p;
gp->next = true;
}
if (gp != NULL)
gp->next = false;
}
port->node->disabled = true;
} else {
pw_log_info("input port %s[%d]:%s",
port->node->name, i, d->ports[port->p].name);
port->external = graph->n_input;
gp->desc = d;
gp->hndl = &port->node->hndl[i];
gp->port = port->p;
port->external = graph->n_input;
gp = &graph->input[graph->n_input++];
gp->desc = d;
gp->hndl = &port->node->hndl[i];
gp->port = port->p;
gp->next = false;
}
}
graph->n_input++;
}
}
if (outputs == NULL) {
@ -1965,11 +1997,12 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
desc = node->desc;
d = desc->desc;
for (i = 0; i < n_hndl; i++) {
gh = &graph->hndl[graph->n_hndl++];
gh->hndl = &node->hndl[i];
gh->desc = d;
if (!node->disabled) {
for (i = 0; i < n_hndl; i++) {
gh = &graph->hndl[graph->n_hndl++];
gh->hndl = &node->hndl[i];
gh->desc = d;
}
}
for (i = 0; i < desc->n_output; i++) {
spa_list_for_each(link, &node->output_port[i].link_list, output_link)

1
src/modules/module-filter-chain/builtin_plugin.c
View file

@ -101,6 +101,7 @@ static struct fc_port copy_ports[] = {
static const struct fc_descriptor copy_desc = {
.name = "copy",
.flags = FC_DESCRIPTOR_COPY,
.n_ports = 2,
.ports = copy_ports,

1
src/modules/module-filter-chain/plugin.h
View file

@ -64,6 +64,7 @@ struct fc_port {
struct fc_descriptor {
const char *name;
#define FC_DESCRIPTOR_SUPPORTS_NULL_DATA (1ULL << 0)
#define FC_DESCRIPTOR_COPY (1ULL << 1)
uint64_t flags;
void (*free) (const struct fc_descriptor *desc);