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always capture maximum possible fps

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This commit is contained in:
Maxim Devaev
2026-01-20 05:16:02 +02:00
parent ec2e6c313b
commit cf7f8947ef
6 changed files with 18 additions and 26 deletions
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11
src/libs/capture.c
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@@ -828,8 +828,6 @@ static int _capture_open_format(us_capture_s *cap, bool first) {
static void _capture_open_hw_fps(us_capture_s *cap) {
us_capture_runtime_s *const run = cap->run;
run->hw_fps = 0;
struct v4l2_streamparm setfps = {.type = run->capture_type};
_LOG_DEBUG("Querying HW FPS ...");
if (us_xioctl(run->fd, VIDIOC_G_PARM, &setfps) < 0) {
@@ -851,7 +849,7 @@ static void _capture_open_hw_fps(us_capture_s *cap) {
US_MEMSET_ZERO(setfps);
setfps.type = run->capture_type;
SETFPS_TPF(numerator) = 1;
SETFPS_TPF(denominator) = (cap->desired_fps == 0 ? 255 : cap->desired_fps);
SETFPS_TPF(denominator) = -1; // Request maximum possible FPS
if (us_xioctl(run->fd, VIDIOC_S_PARM, &setfps) < 0) {
_LOG_PERROR("Can't set HW FPS");
@@ -868,12 +866,7 @@ static void _capture_open_hw_fps(us_capture_s *cap) {
return;
}
run->hw_fps = SETFPS_TPF(denominator);
if (cap->desired_fps != run->hw_fps) {
_LOG_INFO("Using HW FPS: %u -> %u (coerced)", cap->desired_fps, run->hw_fps);
} else {
_LOG_INFO("Using HW FPS: %u", run->hw_fps);
}
_LOG_INFO("Using HW FPS: %u/%u", SETFPS_TPF(numerator), SETFPS_TPF(denominator));
# undef SETFPS_TPF
}

2
src/libs/capture.h
View File

@@ -58,7 +58,6 @@ typedef struct {
uint format;
uint stride;
float hz;
uint hw_fps;
uint jpeg_quality;
uz raw_size;
uint n_bufs;
@@ -113,7 +112,6 @@ typedef struct {
uint n_bufs;
bool dma_export;
bool dma_required;
uint desired_fps;
uz min_frame_size;
bool allow_truncated_frames;
bool persistent;