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links: to avoid overrun limit amount of buffers enqueued on v4l2

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This commit is contained in:
Kamil Trzcinski 2023-02-24 20:01:07 +01:00
parent d57feb0359
commit 19302b93d1
1 changed files with 13 additions and 0 deletions
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13
device/links.c
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@ -11,6 +11,9 @@
#define CAPTURE_TIMEOUT_US (1000*1000) #define CAPTURE_TIMEOUT_US (1000*1000)
#define N_FDS 50 #define N_FDS 50
#define MAX_CAPTURED_ON_CAMERA 2
#define MAX_CAPTURED_ON_M2M 2
typedef struct link_pool_s typedef struct link_pool_s
{ {
struct pollfd fds[N_FDS]; struct pollfd fds[N_FDS];
@ -119,12 +122,22 @@ static bool links_enqueue_capture_buffers(buffer_list_t *capture_list, int *time
// no output, just give back capture_buf // no output, just give back capture_buf
if (!output_list) { if (!output_list) {
// limit amount of buffers enqueued by camera
if (buffer_list_count_enqueued(capture_list) >= MAX_CAPTURED_ON_CAMERA) {
return false;
}
buffer_consumed(capture_buf, "enqueued"); buffer_consumed(capture_buf, "enqueued");
if (capture_list->fmt.interval_us > 0) if (capture_list->fmt.interval_us > 0)
return false; return false;
return true; return true;
} }
// limit amount of buffers enqueued by m2m
if (buffer_list_count_enqueued(output_list) >= MAX_CAPTURED_ON_M2M) {
return false;
}
// try to find matching output slot, ignore if not present // try to find matching output slot, ignore if not present
if (!buffer_list_find_slot(output_list)) { if (!buffer_list_find_slot(output_list)) {
return false; return false;