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authorDafna Hirschfeld <dafna3@gmail.com>2019-01-31 06:44:26 (GMT)
committerHans Verkuil <hverkuil-cisco@xs4all.nl>2019-01-31 08:31:13 (GMT)
commitfaa97e1548184bd3408d2eca3291dfa27e78c76e (patch)
tree88e4ee741599289a0d41e96840a0bcc76c90f1ad
parent9e375c965f200538817ab712330a86a123124394 (diff)
v4l2-ctl: add function vidcap_get_and_update_fmt
add a function vidcap_get_and_update_fmt to set the format from cmd params. Use it in capture_setup. Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
-rw-r--r--utils/v4l2-ctl/v4l2-ctl-streaming.cpp15
-rw-r--r--utils/v4l2-ctl/v4l2-ctl-vidcap.cpp134
-rw-r--r--utils/v4l2-ctl/v4l2-ctl.h1
3 files changed, 89 insertions, 61 deletions
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index d6c3f6a..766872b 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -1894,7 +1894,6 @@ static int capture_setup(cv4l_fd &fd, cv4l_queue &in, cv4l_fd *exp_fd)
fprintf(stderr, "%s: fd.streamoff error\n", __func__);
return -1;
}
- get_cap_compose_rect(fd);
/* release any buffer allocated */
if (in.reqbufs(&fd)) {
@@ -1902,17 +1901,31 @@ static int capture_setup(cv4l_fd &fd, cv4l_queue &in, cv4l_fd *exp_fd)
return -1;
}
+ if (options[OptSetVideoFormat]) {
+ cv4l_fmt fmt;
+
+ if (vidcap_get_and_update_fmt(fd, fmt)) {
+ fprintf(stderr, "%s: vidcap_get_and_update_fmt error\n",
+ __func__);
+ return -1;
+ }
+ fd.s_fmt(fmt, in.g_type());
+ }
+ get_cap_compose_rect(fd);
+
if (in.reqbufs(&fd, reqbufs_count_cap)) {
fprintf(stderr, "%s: in.reqbufs %u error\n", __func__,
reqbufs_count_cap);
return -1;
}
+
if (exp_fd && in.export_bufs(exp_fd, exp_fd->g_type()))
return -1;
if (in.obtain_bufs(&fd) || in.queue_all(&fd)) {
fprintf(stderr, "%s: in.obtain_bufs error\n", __func__);
return -1;
}
+
if (fd.streamon(in.g_type())) {
fprintf(stderr, "%s: fd.streamon error\n", __func__);
return -1;
diff --git a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
index dc17a86..1e32fd2 100644
--- a/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-vidcap.cpp
@@ -153,74 +153,88 @@ void vidcap_cmd(int ch, char *optarg)
}
}
-void vidcap_set(cv4l_fd &_fd)
+int vidcap_get_and_update_fmt(cv4l_fd &_fd, struct v4l2_format &vfmt)
{
int fd = _fd.g_fd();
int ret;
- if (options[OptSetVideoFormat] || options[OptTryVideoFormat]) {
- struct v4l2_format vfmt;
+ memset(&vfmt, 0, sizeof(vfmt));
+ vfmt.fmt.pix.priv = priv_magic;
+ vfmt.type = vidcap_buftype;
- memset(&vfmt, 0, sizeof(vfmt));
- vfmt.fmt.pix.priv = priv_magic;
- vfmt.type = vidcap_buftype;
+ ret = doioctl(fd, VIDIOC_G_FMT, &vfmt);
+ if (ret)
+ return ret;
- if (doioctl(fd, VIDIOC_G_FMT, &vfmt) == 0) {
- if (is_multiplanar) {
- if (set_fmts & FmtWidth)
- vfmt.fmt.pix_mp.width = width;
- if (set_fmts & FmtHeight)
- vfmt.fmt.pix_mp.height = height;
- if (set_fmts & FmtPixelFormat) {
- vfmt.fmt.pix_mp.pixelformat = pixfmt;
- if (vfmt.fmt.pix_mp.pixelformat < 256) {
- vfmt.fmt.pix_mp.pixelformat =
- find_pixel_format(fd, vfmt.fmt.pix_mp.pixelformat,
- false, true);
- }
- }
- if (set_fmts & FmtField)
- vfmt.fmt.pix_mp.field = field;
- if (set_fmts & FmtFlags)
- vfmt.fmt.pix_mp.flags = flags;
- if (set_fmts & FmtBytesPerLine) {
- for (unsigned i = 0; i < VIDEO_MAX_PLANES; i++)
- vfmt.fmt.pix_mp.plane_fmt[i].bytesperline =
- bytesperline[i];
- } else {
- /* G_FMT might return bytesperline values > width,
- * reset them to 0 to force the driver to update them
- * to the closest value for the new width. */
- for (unsigned i = 0; i < vfmt.fmt.pix_mp.num_planes; i++)
- vfmt.fmt.pix_mp.plane_fmt[i].bytesperline = 0;
- }
- } else {
- if (set_fmts & FmtWidth)
- vfmt.fmt.pix.width = width;
- if (set_fmts & FmtHeight)
- vfmt.fmt.pix.height = height;
- if (set_fmts & FmtPixelFormat) {
- vfmt.fmt.pix.pixelformat = pixfmt;
- if (vfmt.fmt.pix.pixelformat < 256) {
- vfmt.fmt.pix.pixelformat =
- find_pixel_format(fd, vfmt.fmt.pix.pixelformat,
- false, false);
- }
- }
- if (set_fmts & FmtField)
- vfmt.fmt.pix.field = field;
- if (set_fmts & FmtFlags)
- vfmt.fmt.pix.flags = flags;
- if (set_fmts & FmtBytesPerLine) {
- vfmt.fmt.pix.bytesperline = bytesperline[0];
- } else {
- /* G_FMT might return a bytesperline value > width,
- * reset this to 0 to force the driver to update it
- * to the closest value for the new width. */
- vfmt.fmt.pix.bytesperline = 0;
- }
+ if (is_multiplanar) {
+ if (set_fmts & FmtWidth)
+ vfmt.fmt.pix_mp.width = width;
+ if (set_fmts & FmtHeight)
+ vfmt.fmt.pix_mp.height = height;
+ if (set_fmts & FmtPixelFormat) {
+ vfmt.fmt.pix_mp.pixelformat = pixfmt;
+ if (vfmt.fmt.pix_mp.pixelformat < 256) {
+ vfmt.fmt.pix_mp.pixelformat =
+ find_pixel_format(fd, vfmt.fmt.pix_mp.pixelformat,
+ false, true);
+ }
+ }
+ if (set_fmts & FmtField)
+ vfmt.fmt.pix_mp.field = field;
+ if (set_fmts & FmtFlags)
+ vfmt.fmt.pix_mp.flags = flags;
+ if (set_fmts & FmtBytesPerLine) {
+ for (unsigned i = 0; i < VIDEO_MAX_PLANES; i++)
+ vfmt.fmt.pix_mp.plane_fmt[i].bytesperline =
+ bytesperline[i];
+ } else {
+ /*
+ * G_FMT might return bytesperline values > width,
+ * reset them to 0 to force the driver to update them
+ * to the closest value for the new width.
+ */
+ for (unsigned i = 0; i < vfmt.fmt.pix_mp.num_planes; i++)
+ vfmt.fmt.pix_mp.plane_fmt[i].bytesperline = 0;
+ }
+ } else {
+ if (set_fmts & FmtWidth)
+ vfmt.fmt.pix.width = width;
+ if (set_fmts & FmtHeight)
+ vfmt.fmt.pix.height = height;
+ if (set_fmts & FmtPixelFormat) {
+ vfmt.fmt.pix.pixelformat = pixfmt;
+ if (vfmt.fmt.pix.pixelformat < 256) {
+ vfmt.fmt.pix.pixelformat =
+ find_pixel_format(fd, vfmt.fmt.pix.pixelformat,
+ false, false);
}
+ }
+ if (set_fmts & FmtField)
+ vfmt.fmt.pix.field = field;
+ if (set_fmts & FmtFlags)
+ vfmt.fmt.pix.flags = flags;
+ if (set_fmts & FmtBytesPerLine) {
+ vfmt.fmt.pix.bytesperline = bytesperline[0];
+ } else {
+ /*
+ * G_FMT might return a bytesperline value > width,
+ * reset this to 0 to force the driver to update it
+ * to the closest value for the new width.
+ */
+ vfmt.fmt.pix.bytesperline = 0;
+ }
+ }
+ return 0;
+}
+
+void vidcap_set(cv4l_fd &_fd)
+{
+ if (options[OptSetVideoFormat] || options[OptTryVideoFormat]) {
+ int fd = _fd.g_fd();
+ int ret;
+ struct v4l2_format vfmt;
+ if (vidcap_get_and_update_fmt(_fd, vfmt) == 0) {
if (options[OptSetVideoFormat])
ret = doioctl(fd, VIDIOC_S_FMT, &vfmt);
else
diff --git a/utils/v4l2-ctl/v4l2-ctl.h b/utils/v4l2-ctl/v4l2-ctl.h
index dcc39b5..739dc5a 100644
--- a/utils/v4l2-ctl/v4l2-ctl.h
+++ b/utils/v4l2-ctl/v4l2-ctl.h
@@ -348,6 +348,7 @@ void stds_list(cv4l_fd &fd);
// v4l2-ctl-vidcap.cpp
void vidcap_usage(void);
void vidcap_cmd(int ch, char *optarg);
+int vidcap_get_and_update_fmt(cv4l_fd &_fd, struct v4l2_format &vfmt);
void vidcap_set(cv4l_fd &fd);
void vidcap_get(cv4l_fd &fd);
void vidcap_list(cv4l_fd &fd);

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