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Diffstat (limited to 'v4l2-apps/util/v4l2-ctl.cpp')
-rw-r--r--v4l2-apps/util/v4l2-ctl.cpp108
1 files changed, 107 insertions, 1 deletions
diff --git a/v4l2-apps/util/v4l2-ctl.cpp b/v4l2-apps/util/v4l2-ctl.cpp
index b2246c557..60ebc5474 100644
--- a/v4l2-apps/util/v4l2-ctl.cpp
+++ b/v4l2-apps/util/v4l2-ctl.cpp
@@ -77,6 +77,8 @@ enum Option {
OptSetTuner = 't',
OptGetVideoFormat = 'V',
OptSetVideoFormat = 'v',
+ OptGetParm = 'P',
+ OptSetParm = 'p',
OptGetSlicedVbiOutFormat = 128,
OptGetOverlayFormat,
@@ -134,6 +136,8 @@ enum Option {
OptGetModulator,
OptSetModulator,
OptListDevices,
+ OptGetOutputParm,
+ OptSetOutputParm,
OptLast = 256
};
@@ -222,6 +226,10 @@ static struct option long_options[] = {
{"list-formats", no_argument, 0, OptListFormats},
{"get-standard", no_argument, 0, OptGetStandard},
{"set-standard", required_argument, 0, OptSetStandard},
+ {"get-parm", no_argument, 0, OptGetParm},
+ {"set-parm", required_argument, 0, OptSetParm},
+ {"get-output-parm", no_argument, 0, OptGetOutputParm},
+ {"set-output-parm", required_argument, 0, OptSetOutputParm},
{"info", no_argument, 0, OptGetDriverInfo},
{"list-ctrls", no_argument, 0, OptListCtrls},
{"list-ctrls-menus", no_argument, 0, OptListCtrlsMenus},
@@ -306,6 +314,9 @@ static void usage(void)
" ntsc-X (X = M/J/K) or just 'ntsc' (V4L2_STD_NTSC)\n"
" secam-X (X = B/G/H/D/K/L/Lc) or just 'secam' (V4L2_STD_SECAM)\n"
" --list-standards display supported video standards [VIDIOC_ENUMSTD]\n"
+ " -P, --get-parm display video parameters [VIDIOC_G_PARM]\n"
+ " -p, --set-parm=<fps>\n"
+ " set video framerate in <fps> [VIDIOC_S_PARM]\n"
" -T, --get-tuner query the tuner settings [VIDIOC_G_TUNER]\n"
" -t, --set-tuner=<mode>\n"
" set the audio mode of the tuner [VIDIOC_S_TUNER]\n"
@@ -418,6 +429,9 @@ static void usage(void)
" bilingual: Modulate as bilingual\n"
" mono-sap: Modulate as mono with Second Audio Program\n"
" stereo-sap: Modulate as stereo with Second Audio Program\n"
+ " --get-output-parm display output video parameters [VIDIOC_G_PARM]\n"
+ " --set-output-parm=<fps>\n"
+ " set output video framerate in <fps> [VIDIOC_S_PARM]\n"
"\n");
printf("Expert options:\n"
" --streamoff turn the stream off [VIDIOC_STREAMOFF]\n"
@@ -824,7 +838,7 @@ static void printcropcap(const struct v4l2_cropcap &cropcap)
printf("\tPixel Aspect: %u/%u\n", cropcap.pixelaspect.numerator, cropcap.pixelaspect.denominator);
}
-static void printfmt(struct v4l2_format vfmt)
+static void printfmt(const struct v4l2_format &vfmt)
{
const flag_def vbi_def[] = {
{ V4L2_VBI_UNSYNC, "unsynchronized" },
@@ -1419,11 +1433,14 @@ int main(int argc, char **argv)
struct v4l2_rect vcrop_out_overlay; /* crop rect */
struct v4l2_framebuffer fbuf; /* fbuf */
struct v4l2_jpegcompression jpegcomp; /* jpeg compression */
+ struct v4l2_streamparm parm; /* get/set parm */
int input; /* set_input/get_input */
int output; /* set_output/get_output */
int txsubchans; /* set_modulator */
v4l2_std_id std; /* get_std/set_std */
double freq = 0; /* get/set frequency */
+ double fps = 0; /* set framerate speed, in fps */
+ double output_fps = 0; /* set framerate speed, in fps */
struct v4l2_frequency vf; /* get_freq/set_freq */
struct v4l2_standard vs; /* list_std */
int overlay; /* overlay */
@@ -1690,6 +1707,12 @@ int main(int argc, char **argv)
std = strtol(optarg, 0L, 0) | (1ULL << 63);
}
break;
+ case OptSetParm:
+ fps = strtod(optarg, NULL);
+ break;
+ case OptSetOutputParm:
+ output_fps = strtod(optarg, NULL);
+ break;
case OptGetCtrl:
subs = optarg;
while (*subs != '\0') {
@@ -1915,6 +1938,8 @@ int main(int argc, char **argv)
options[OptGetAudioInput] = 1;
options[OptGetAudioOutput] = 1;
options[OptGetStandard] = 1;
+ options[OptGetParm] = 1;
+ options[OptGetOutputParm] = 1;
options[OptGetFreq] = 1;
options[OptGetTuner] = 1;
options[OptGetModulator] = 1;
@@ -1976,6 +2001,43 @@ int main(int argc, char **argv)
printf("Standard set to %08llx\n", (unsigned long long)std);
}
+
+ if (options[OptSetParm]) {
+ memset(&parm, 0, sizeof(parm));
+ parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ parm.parm.capture.timeperframe.numerator = 1000;
+ parm.parm.capture.timeperframe.denominator =
+ fps * parm.parm.capture.timeperframe.numerator;
+
+ if (doioctl(fd, VIDIOC_S_PARM, &parm, "VIDIOC_S_PARM") == 0) {
+ struct v4l2_fract *tf = &parm.parm.capture.timeperframe;
+
+ if (!tf->denominator || !tf->numerator)
+ printf("Invalid frame rate\n");
+ else
+ printf("Frame rate set to %.3f fps\n",
+ 1.0 * tf->denominator / tf->numerator);
+ }
+ }
+
+ if (options[OptSetOutputParm]) {
+ memset(&parm, 0, sizeof(parm));
+ parm.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ parm.parm.output.timeperframe.numerator = 1000;
+ parm.parm.output.timeperframe.denominator =
+ fps * parm.parm.output.timeperframe.numerator;
+
+ if (doioctl(fd, VIDIOC_S_PARM, &parm, "VIDIOC_S_PARM") == 0) {
+ struct v4l2_fract *tf = &parm.parm.output.timeperframe;
+
+ if (!tf->denominator || !tf->numerator)
+ printf("Invalid frame rate\n");
+ else
+ printf("Frame rate set to %.3f fps\n",
+ 1.0 * tf->denominator / tf->numerator);
+ }
+ }
+
if (options[OptSetInput]) {
if (doioctl(fd, VIDIOC_S_INPUT, &input, "VIDIOC_S_INPUT") == 0) {
printf("Video input set to %d", input);
@@ -2451,6 +2513,50 @@ set_vid_fmt_error:
}
}
+ if (options[OptGetParm]) {
+ memset(&parm, 0, sizeof(parm));
+ parm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ if (doioctl(fd, VIDIOC_G_PARM, &parm, "VIDIOC_G_PARM") == 0) {
+ const struct v4l2_fract &tf = parm.parm.capture.timeperframe;
+
+ printf("Streaming Parameters %s:\n", buftype2s(parm.type).c_str());
+ if (parm.parm.capture.capability & V4L2_CAP_TIMEPERFRAME)
+ printf("\tCapabilities : timeperframe\n");
+ if (parm.parm.capture.capturemode & V4L2_MODE_HIGHQUALITY)
+ printf("\tCapture mode : high quality\n");
+ if (!tf.denominator || !tf.numerator)
+ printf("\tFrames per second: invalid (%d/%d)\n",
+ tf.denominator, tf.numerator);
+ else
+ printf("\tFrames per second: %.3f (%d/%d)\n",
+ (1.0 * tf.denominator) / tf.numerator,
+ tf.denominator, tf.numerator);
+ printf("\tRead buffers : %d\n", parm.parm.output.writebuffers);
+ }
+ }
+
+ if (options[OptGetOutputParm]) {
+ memset(&parm, 0, sizeof(parm));
+ parm.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ if (doioctl(fd, VIDIOC_G_PARM, &parm, "VIDIOC_G_PARM") == 0) {
+ const struct v4l2_fract &tf = parm.parm.output.timeperframe;
+
+ printf("Streaming Parameters %s:\n", buftype2s(parm.type).c_str());
+ if (parm.parm.output.capability & V4L2_CAP_TIMEPERFRAME)
+ printf("\tCapabilities : timeperframe\n");
+ if (parm.parm.output.outputmode & V4L2_MODE_HIGHQUALITY)
+ printf("\tOutput mode : high quality\n");
+ if (!tf.denominator || !tf.numerator)
+ printf("\tFrames per second: invalid (%d/%d)\n",
+ tf.denominator, tf.numerator);
+ else
+ printf("\tFrames per second: %.3f (%d/%d)\n",
+ (1.0 * tf.denominator) / tf.numerator,
+ tf.denominator, tf.numerator);
+ printf("\tWrite buffers : %d\n", parm.parm.output.writebuffers);
+ }
+ }
+
if (options[OptGetCtrl] && !get_ctrls.empty()) {
struct v4l2_ext_controls ctrls = { 0 };
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-02 20:59:02 +0000