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filter-chain: Support null inputs/outputs

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Handle null inputs by ignoring the port
Handle null output by clearing the buffer.
Make sure we only have one input and output linked.
This commit is contained in:
Wim Taymans 2021-05-12 20:17:15 +02:00
parent 2017de6da8
commit e94a977dcd
1 changed files with 81 additions and 26 deletions
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107
src/modules/module-filter-chain.c
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@ -136,6 +136,7 @@ struct port {
struct spa_list link_list; struct spa_list link_list;
uint32_t n_links; uint32_t n_links;
uint32_t external;
LADSPA_Data control_data; LADSPA_Data control_data;
LADSPA_Data *audio_data[MAX_HNDL]; LADSPA_Data *audio_data[MAX_HNDL];
@ -278,7 +279,8 @@ static void capture_process(void *d)
for (i = 0; i < in->buffer->n_datas; i++) { for (i = 0; i < in->buffer->n_datas; i++) {
struct spa_data *ds = &in->buffer->datas[i]; struct spa_data *ds = &in->buffer->datas[i];
struct graph_port *port = &graph->input[i]; struct graph_port *port = &graph->input[i];
port->desc->connect_port(port->hndl, port->port, if (port->desc)
port->desc->connect_port(port->hndl, port->port,
SPA_MEMBER(ds->data, ds->chunk->offset, void)); SPA_MEMBER(ds->data, ds->chunk->offset, void));
size = SPA_MAX(size, ds->chunk->size); size = SPA_MAX(size, ds->chunk->size);
stride = SPA_MAX(stride, ds->chunk->stride); stride = SPA_MAX(stride, ds->chunk->stride);
@ -286,7 +288,10 @@ static void capture_process(void *d)
for (i = 0; i < out->buffer->n_datas; i++) { for (i = 0; i < out->buffer->n_datas; i++) {
struct spa_data *dd = &out->buffer->datas[i]; struct spa_data *dd = &out->buffer->datas[i];
struct graph_port *port = &graph->output[i]; struct graph_port *port = &graph->output[i];
port->desc->connect_port(port->hndl, port->port, dd->data); if (port->desc)
port->desc->connect_port(port->hndl, port->port, dd->data);
else
memset(dd->data, 0, size);
dd->chunk->offset = 0; dd->chunk->offset = 0;
dd->chunk->size = size; dd->chunk->size = size;
dd->chunk->stride = stride; dd->chunk->stride = stride;
@ -862,8 +867,8 @@ static struct ladspa_descriptor *ladspa_descriptor_load(struct impl *impl,
} }
} }
} }
if (desc->n_input == 0 || desc->n_output == 0) { if (desc->n_input == 0 && desc->n_output == 0) {
pw_log_error("plugin has no input or no output ports"); pw_log_error("plugin has no input and no output ports");
res = -ENOTSUP; res = -ENOTSUP;
goto exit; goto exit;
} }
@ -949,7 +954,16 @@ static int parse_link(struct graph *graph, struct spa_json *json)
pw_log_error("unknown input port %s", input); pw_log_error("unknown input port %s", input);
return -ENOENT; return -ENOENT;
} }
if (in_port->external != SPA_ID_INVALID) {
pw_log_info("%s already used as graph input %d, use mixer",
input, in_port->external);
return -EINVAL;
}
if (out_port->external != SPA_ID_INVALID) {
pw_log_info("%s already used as graph output %d, use copy",
output, out_port->external);
return -EINVAL;
}
if (in_port->n_links > 0) { if (in_port->n_links > 0) {
pw_log_info("Can't have more than 1 link to %s, use a mixer", input); pw_log_info("Can't have more than 1 link to %s, use a mixer", input);
return -ENOTSUP; return -ENOTSUP;
@ -1062,6 +1076,7 @@ static int load_node(struct graph *graph, struct spa_json *json)
struct port *port = &node->input_port[i]; struct port *port = &node->input_port[i];
port->node = node; port->node = node;
port->idx = i; port->idx = i;
port->external = SPA_ID_INVALID;
port->p = desc->input[i]; port->p = desc->input[i];
spa_list_init(&port->link_list); spa_list_init(&port->link_list);
} }
@ -1069,6 +1084,7 @@ static int load_node(struct graph *graph, struct spa_json *json)
struct port *port = &node->output_port[i]; struct port *port = &node->output_port[i];
port->node = node; port->node = node;
port->idx = i; port->idx = i;
port->external = SPA_ID_INVALID;
port->p = desc->output[i]; port->p = desc->output[i];
spa_list_init(&port->link_list); spa_list_init(&port->link_list);
} }
@ -1076,6 +1092,7 @@ static int load_node(struct graph *graph, struct spa_json *json)
struct port *port = &node->control_port[i]; struct port *port = &node->control_port[i];
port->node = node; port->node = node;
port->idx = i; port->idx = i;
port->external = SPA_ID_INVALID;
port->p = desc->control[i]; port->p = desc->control[i];
spa_list_init(&port->link_list); spa_list_init(&port->link_list);
port->control_data = desc->default_control[i]; port->control_data = desc->default_control[i];
@ -1084,6 +1101,7 @@ static int load_node(struct graph *graph, struct spa_json *json)
struct port *port = &node->notify_port[i]; struct port *port = &node->notify_port[i];
port->node = node; port->node = node;
port->idx = i; port->idx = i;
port->external = SPA_ID_INVALID;
port->p = desc->notify[i]; port->p = desc->notify[i];
spa_list_init(&port->link_list); spa_list_init(&port->link_list);
} }
@ -1104,8 +1122,10 @@ static void node_free(struct node *node)
for (i = 0; i < node->n_hndl; i++) { for (i = 0; i < node->n_hndl; i++) {
for (j = 0; j < node->desc->n_output; j++) for (j = 0; j < node->desc->n_output; j++)
free(node->output_port[j].audio_data[i]); free(node->output_port[j].audio_data[i]);
if (d->activate) if (node->hndl[i] == NULL)
d->activate(node->hndl[i]); continue;
if (d->deactivate)
d->deactivate(node->hndl[i]);
d->cleanup(node->hndl[i]); d->cleanup(node->hndl[i]);
} }
ladspa_descriptor_unref(node->desc); ladspa_descriptor_unref(node->desc);
@ -1285,19 +1305,36 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
} else { } else {
struct spa_json it = *inputs; struct spa_json it = *inputs;
while (spa_json_get_string(&it, v, sizeof(v)) > 0) { while (spa_json_get_string(&it, v, sizeof(v)) > 0) {
if ((port = find_port(first, v, LADSPA_PORT_INPUT)) == NULL) { gp = &graph->input[graph->n_input];
if (strcmp(v, "null") == 0) {
gp->desc = NULL;
pw_log_info("ignore input port %d", graph->n_input);
} else if ((port = find_port(first, v, LADSPA_PORT_INPUT)) == NULL) {
res = -ENOENT; res = -ENOENT;
pw_log_error("input port %s not found", v); pw_log_error("input port %s not found", v);
goto error; goto error;
} else {
desc = port->node->desc;
d = desc->desc;
if (port->external != SPA_ID_INVALID) {
pw_log_error("input port %s[%d]:%s already used as input %d, use mixer",
port->node->name, i, d->PortNames[port->p],
graph->n_input);
goto error;
}
if (port->n_links > 0) {
pw_log_error("input port %s[%d]:%s already used by link, use mixer",
port->node->name, i, d->PortNames[port->p]);
goto error;
}
pw_log_info("input port %s[%d]:%s",
port->node->name, i, d->PortNames[port->p]);
port->external = graph->n_input;
gp->desc = d;
gp->hndl = port->node->hndl[i];
gp->port = port->p;
} }
gp = &graph->input[graph->n_input++]; graph->n_input++;
desc = port->node->desc;
d = desc->desc;
pw_log_info("input port %s[%d]:%s",
port->node->name, i, d->PortNames[port->p]);
gp->desc = d;
gp->hndl = port->node->hndl[i];
gp->port = port->p;
} }
} }
if (outputs == NULL) { if (outputs == NULL) {
@ -1314,19 +1351,36 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
} else { } else {
struct spa_json it = *outputs; struct spa_json it = *outputs;
while (spa_json_get_string(&it, v, sizeof(v)) > 0) { while (spa_json_get_string(&it, v, sizeof(v)) > 0) {
if ((port = find_port(last, v, LADSPA_PORT_OUTPUT)) == NULL) { gp = &graph->output[graph->n_output];
if (strcmp(v, "null") == 0) {
gp->desc = NULL;
pw_log_info("silence output port %d", graph->n_output);
} else if ((port = find_port(last, v, LADSPA_PORT_OUTPUT)) == NULL) {
res = -ENOENT; res = -ENOENT;
pw_log_error("output port %s not found", v); pw_log_error("output port %s not found", v);
goto error; goto error;
} else {
desc = port->node->desc;
d = desc->desc;
if (port->external != SPA_ID_INVALID) {
pw_log_error("output port %s[%d]:%s already used as output %d, use copy",
port->node->name, i, d->PortNames[port->p],
graph->n_output);
goto error;
}
if (port->n_links > 0) {
pw_log_error("output port %s[%d]:%s already used by link, use copy",
port->node->name, i, d->PortNames[port->p]);
goto error;
}
pw_log_info("output port %s[%d]:%s",
port->node->name, i, d->PortNames[port->p]);
port->external = graph->n_output;
gp->desc = d;
gp->hndl = port->node->hndl[i];
gp->port = port->p;
} }
gp = &graph->output[graph->n_output++]; graph->n_output++;
desc = port->node->desc;
d = desc->desc;
pw_log_info("output port %s[%d]:%s",
port->node->name, i, d->PortNames[port->p]);
gp->desc = d;
gp->hndl = port->node->hndl[i];
gp->port = port->p;
} }
} }
} }
@ -1356,11 +1410,12 @@ static int setup_graph(struct graph *graph, struct spa_json *inputs, struct spa_
error: error:
spa_list_for_each(node, &graph->node_list, link) { spa_list_for_each(node, &graph->node_list, link) {
for (i = 0; i < n_hndl; i++) { for (i = 0; i < node->n_hndl; i++) {
if (node->hndl[i] != NULL) if (node->hndl[i] != NULL)
node->desc->desc->cleanup(node->hndl[i]); node->desc->desc->cleanup(node->hndl[i]);
node->hndl[i] = NULL; node->hndl[i] = NULL;
} }
node->n_hndl = 0;
} }
return res; return res;
} }