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control: add support for mixing to UMP

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Check the negotiated control output format and convert to it when
necessary.
This commit is contained in:
Wim Taymans 2024-07-26 15:11:36 +02:00
parent 648ba982d4
commit 0c4ea83b89
1 changed files with 66 additions and 16 deletions
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82
spa/plugins/control/mixer.c
View file

@ -19,6 +19,7 @@
#include <spa/param/audio/format-utils.h>
#include <spa/param/param.h>
#include <spa/control/control.h>
#include <spa/control/ump-utils.h>
#include <spa/pod/filter.h>
#undef SPA_LOG_TOPIC_DEFAULT
@ -50,6 +51,8 @@ struct port {
unsigned int valid:1;
unsigned int have_format:1;
uint32_t types;
struct buffer buffers[MAX_BUFFERS];
uint32_t n_buffers;
@ -449,7 +452,7 @@ static int port_set_format(void *object,
clear_buffers(this, port);
}
} else {
uint32_t media_type, media_subtype;
uint32_t media_type, media_subtype, types = 0;
if ((res = spa_format_parse(format, &media_type, &media_subtype)) < 0)
return res;
@ -457,11 +460,17 @@ static int port_set_format(void *object,
media_subtype != SPA_MEDIA_SUBTYPE_control)
return -EINVAL;
if ((res = spa_pod_parse_object(format,
SPA_TYPE_OBJECT_Format, NULL,
SPA_FORMAT_CONTROL_types, SPA_POD_OPT_Int(&types))) < 0)
return res;
this->have_format = true;
if (!port->have_format) {
this->n_formats++;
port->have_format = true;
port->types = types;
spa_log_debug(this->log, "%p: set format on port %d:%d",
this, direction, port_id);
}
@ -620,6 +629,17 @@ static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t
return queue_buffer(this, port, &port->buffers[buffer_id]);
}
static inline int event_compare(uint8_t s1, uint8_t s2)
{
/* 11 (controller) > 12 (program change) >
* 8 (note off) > 9 (note on) > 10 (aftertouch) >
* 13 (channel pressure) > 14 (pitch bend) */
static int priotab[] = { 5,4,3,7,6,2,1,0 };
if ((s1 & 0xf) != (s2 & 0xf))
return 0;
return priotab[(s2>>4) & 7] - priotab[(s1>>4) & 7];
}
static inline int event_sort(struct spa_pod_control *a, struct spa_pod_control *b)
{
if (a->offset < b->offset)
@ -631,21 +651,20 @@ static inline int event_sort(struct spa_pod_control *a, struct spa_pod_control *
switch(a->type) {
case SPA_CONTROL_Midi:
{
/* 11 (controller) > 12 (program change) >
* 8 (note off) > 9 (note on) > 10 (aftertouch) >
* 13 (channel pressure) > 14 (pitch bend) */
static int priotab[] = { 5,4,3,7,6,2,1,0 };
uint8_t *da, *db;
if (SPA_POD_BODY_SIZE(&a->value) < 1 ||
SPA_POD_BODY_SIZE(&b->value) < 1)
uint8_t *da = SPA_POD_BODY(&a->value), *db = SPA_POD_BODY(&b->value);
if (SPA_POD_BODY_SIZE(&a->value) < 1 || SPA_POD_BODY_SIZE(&b->value) < 1)
return 0;
da = SPA_POD_BODY(&a->value);
db = SPA_POD_BODY(&b->value);
if ((da[0] & 0xf) != (db[0] & 0xf))
return event_compare(da[0], db[0]);
}
case SPA_CONTROL_UMP:
{
uint32_t *da = SPA_POD_BODY(&a->value), *db = SPA_POD_BODY(&b->value);
if (SPA_POD_BODY_SIZE(&a->value) < 4 || SPA_POD_BODY_SIZE(&b->value) < 4)
return 0;
return priotab[(db[0]>>4) & 7] - priotab[(da[0]>>4) & 7];
if ((da[0] >> 28) != 2 || (da[0] >> 28) != 4 ||
(db[0] >> 28) != 2 || (db[0] >> 28) != 4)
return 0;
return event_compare(da[0] >> 16, db[0] >> 16);
}
default:
return 0;
@ -763,8 +782,39 @@ static int impl_node_process(void *object)
if (next == NULL)
break;
spa_pod_builder_control(&builder, next->offset, next->type);
spa_pod_builder_primitive(&builder, &next->value);
if (outport->types && (outport->types & (1u << next->type)) == 0) {
uint8_t *data = SPA_POD_BODY(&next->value);
size_t size = SPA_POD_BODY_SIZE(&next->value);
switch (next->type) {
case SPA_CONTROL_Midi:
{
uint32_t ump[4];
uint64_t state = 0;
while (size > 0) {
int ump_size = spa_ump_from_midi(&data, &size, ump, sizeof(ump), 0, &state);
if (ump_size <= 0)
break;
spa_pod_builder_control(&builder, next->offset, SPA_CONTROL_UMP);
spa_pod_builder_bytes(&builder, ump, ump_size);
}
break;
}
case SPA_CONTROL_UMP:
{
uint8_t ev[8];
int ev_size = spa_ump_to_midi((uint32_t*)data, size, ev, sizeof(ev));
if (ev_size <= 0)
break;
spa_pod_builder_control(&builder, next->offset, SPA_CONTROL_Midi);
spa_pod_builder_bytes(&builder, ev, ev_size);
break;
}
}
} else {
spa_pod_builder_control(&builder, next->offset, next->type);
spa_pod_builder_primitive(&builder, &next->value);
}
ctrl[next_index] = spa_pod_control_next(ctrl[next_index]);
}