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jack: add jack_get_video_image_size extension

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Add a JACK PipeWire extension to get the video size of the DSP
pipeline and use this instead of the hardcoded values in the example.
This commit is contained in:
Wim Taymans 2020-02-07 13:31:49 +01:00
parent 14fbd4f520
commit ed1cf46c31
4 changed files with 94 additions and 18 deletions
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29
pipewire-jack/src/pipewire-jack.c
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@ -46,6 +46,7 @@
#include "extensions/client-node.h"
#include "extensions/metadata.h"
#include "pipewire-jack-extensions.h"
#define JACK_DEFAULT_VIDEO_TYPE "32 bit float RGBA video"
@ -4342,6 +4343,34 @@ uint32_t jack_midi_get_lost_event_count(void *port_buffer)
return mb->lost_events;
}
/** extensions */
SPA_EXPORT
int jack_get_video_image_size(jack_client_t *client, jack_image_size_t *size)
{
struct client *c = (struct client *) client;
struct pw_node_activation *a = c->driver_activation;
printf("1\n");
if (a == NULL)
a = c->activation;
if (a == NULL)
return -EIO;
printf("2\n");
if (!(a->position.video.flags & SPA_IO_VIDEO_SIZE_VALID))
return -EIO;
printf("3\n");
size->width = a->position.video.size.width;
size->height = a->position.video.size.height;
size->stride = a->position.video.stride;
size->flags = 0;
printf("%d %d %d %d\n", size->width, size->height, size->stride, size->flags);
return size->stride * size->height;
}
static void reg(void) __attribute__ ((constructor));
static void reg(void)
{