From: bnvandana@gmail.com (Vandana BN)
Subject: [Linux-kernel-mentees] [PATCH] v4l2-ctl: support for metadata output
Date: Thu, 3 Oct 2019 12:36:15 +0530 [thread overview]
Message-ID: <20191003070615.23129-1-bnvandana@gmail.com> (raw)
Message-ID: <20191003070615.76V2c146-qz6ABZ_rLeqMnnc7Y0unXLJRX3iYNTW2Y8@z> (raw)
Adds support to test metadata output format V4L2_META_FMT_VIVID.
Signed-off-by: Vandana BN <bnvandana at gmail.com>
---
contrib/freebsd/include/linux/videodev2.h | 1 +
include/linux/videodev2.h | 1 +
utils/v4l2-ctl/v4l2-ctl-meta.cpp | 31 +++++++++++++++++++++++
utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 12 ++++++---
utils/v4l2-ctl/v4l2-ctl.h | 1 +
5 files changed, 43 insertions(+), 3 deletions(-)
diff --git a/contrib/freebsd/include/linux/videodev2.h b/contrib/freebsd/include/linux/videodev2.h
index 0c12d27f..d14ca0aa 100644
--- a/contrib/freebsd/include/linux/videodev2.h
+++ b/contrib/freebsd/include/linux/videodev2.h
@@ -783,6 +783,7 @@ struct v4l2_pix_format {
#define V4L2_META_FMT_VSP1_HGT v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
#define V4L2_META_FMT_UVC v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
#define V4L2_META_FMT_D4XX v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
+#define V4L2_META_FMT_VIVID v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Output Metadata */
/* priv field value to indicates that subsequent fields are valid. */
#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index e2847759..be4727da 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -749,6 +749,7 @@ struct v4l2_pix_format {
#define V4L2_META_FMT_VSP1_HGT v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
#define V4L2_META_FMT_UVC v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
#define V4L2_META_FMT_D4XX v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
+#define V4L2_META_FMT_VIVID v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Output Metadata */
/* priv field value to indicates that subsequent fields are valid. */
#define V4L2_PIX_FMT_PRIV_MAGIC 0xfeedcafe
diff --git a/utils/v4l2-ctl/v4l2-ctl-meta.cpp b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
index eae7438f..2b5781a7 100644
--- a/utils/v4l2-ctl/v4l2-ctl-meta.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-meta.cpp
@@ -139,10 +139,18 @@ struct vivid_uvc_meta_buf {
#define UVC_STREAM_SCR (1 << 3)
#define UVC_STREAM_PTS (1 << 2)
+struct vivid_meta_out_buf {
+ __u8 brightness;
+ __u8 contrast;
+ __u8 saturation;
+ __s16 hue;
+};
+
void print_meta_buffer(FILE *f, cv4l_buffer &buf, cv4l_fmt &fmt, cv4l_queue &q)
{
struct vivid_uvc_meta_buf *vbuf;
int buf_off = 0;
+ struct vivid_meta_out_buf *vbuf_out;
switch (fmt.g_pixelformat()) {
case V4L2_META_FMT_UVC:
@@ -164,5 +172,28 @@ void print_meta_buffer(FILE *f, cv4l_buffer &buf, cv4l_fmt &fmt, cv4l_queue &q)
le16toh(*(__u16*)(vbuf->buf + buf_off + 4)));
fprintf(f, "\n");
break;
+ case V4L2_META_FMT_VIVID:
+ fprintf(f, "VIVID:");
+ vbuf_out = (vivid_meta_out_buf *)q.g_dataptr(buf.g_index(), 0);
+
+ fprintf(f, " brightness: %u", vbuf_out->brightness);
+ fprintf(f, " contrast: %u", vbuf_out->contrast);
+ fprintf(f, " saturation: %u", vbuf_out->saturation);
+ fprintf(f, " hue: %d\n", vbuf_out->hue);
+ break;
+ }
+}
+
+void meta_fillbuffer(int idx, cv4l_fmt &fmt, cv4l_queue &q)
+{
+ struct vivid_meta_out_buf *vbuf;
+ switch (fmt.g_pixelformat()) {
+ case V4L2_META_FMT_VIVID:
+ vbuf = (vivid_meta_out_buf *)q.g_dataptr(idx, 0);
+ vbuf->brightness = 228;
+ vbuf->contrast = 228;
+ vbuf->saturation = 228;
+ vbuf->hue = 100;
+ break;
}
}
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 47b7d3f8..fc82d483 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -1146,6 +1146,7 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf
bool can_fill = false;
bool is_video = q.g_type() == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
q.g_type() == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ bool is_meta = q.g_type() == V4L2_BUF_TYPE_META_OUTPUT;
if (q.obtain_bufs(&fd))
return QUEUE_ERROR;
@@ -1177,7 +1178,6 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf
if (V4L2_FIELD_HAS_T_OR_B(field))
output_field = (stream_out_std & V4L2_STD_525_60) ?
V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP;
-
if (is_video) {
tpg_init(&tpg, 640, 360);
tpg_alloc(&tpg, fmt.g_width());
@@ -1244,6 +1244,9 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf
if (fin && !fill_buffer_from_file(fd, q, buf, fmt, fin))
return QUEUE_STOPPED;
+ if (is_meta)
+ meta_fillbuffer(i, fmt, q);
+
if (fmt.g_pixelformat() == V4L2_PIX_FMT_FWHT_STATELESS) {
int media_fd = mi_get_media_fd(fd.g_fd());
@@ -1266,7 +1269,6 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf
}
if (qbuf) {
fps_timestamps fps_ts;
-
set_time_stamp(buf);
if (fd.qbuf(buf))
return QUEUE_ERROR;
@@ -1480,6 +1482,7 @@ static int do_handle_out(cv4l_fd &fd, cv4l_queue &q, FILE *fin, cv4l_buffer *cap
bool stopped, bool ignore_count_skip)
{
cv4l_buffer buf(q);
+ bool is_meta = q.g_type() == V4L2_BUF_TYPE_META_OUTPUT;
int ret = 0;
if (cap) {
@@ -1522,6 +1525,7 @@ static int do_handle_out(cv4l_fd &fd, cv4l_queue &q, FILE *fin, cv4l_buffer *cap
fprintf(stderr, ", dropped buffers: %u", dropped);
fprintf(stderr, "\n");
}
+
if (stopped)
return 0;
@@ -1542,6 +1546,8 @@ static int do_handle_out(cv4l_fd &fd, cv4l_queue &q, FILE *fin, cv4l_buffer *cap
tpg_fillbuffer(&tpg, stream_out_std, j,
(u8 *)q.g_dataptr(buf.g_index(), j));
}
+ if (is_meta)
+ meta_fillbuffer(buf.g_index(), fmt, q);
if (fmt.g_pixelformat() == V4L2_PIX_FMT_FWHT_STATELESS) {
if (ioctl(buf.g_request_fd(), MEDIA_REQUEST_IOC_REINIT, NULL)) {
@@ -2039,7 +2045,7 @@ static void streaming_set_out(cv4l_fd &fd, cv4l_fd &exp_fd)
if (!(capabilities & (V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OUTPUT_MPLANE |
V4L2_CAP_VBI_OUTPUT | V4L2_CAP_SLICED_VBI_OUTPUT |
- V4L2_CAP_SDR_OUTPUT |
+ V4L2_CAP_SDR_OUTPUT | V4L2_CAP_META_OUTPUT |
V4L2_CAP_VIDEO_M2M | V4L2_CAP_VIDEO_M2M_MPLANE))) {
fprintf(stderr, "unsupported stream type\n");
return;
diff --git a/utils/v4l2-ctl/v4l2-ctl.h b/utils/v4l2-ctl/v4l2-ctl.h
index 2c861d82..a12a2ba7 100644
--- a/utils/v4l2-ctl/v4l2-ctl.h
+++ b/utils/v4l2-ctl/v4l2-ctl.h
@@ -409,6 +409,7 @@ void meta_set(cv4l_fd &fd);
void meta_get(cv4l_fd &fd);
void meta_list(cv4l_fd &fd);
void print_meta_buffer(FILE *f, cv4l_buffer &buf, cv4l_fmt &fmt, cv4l_queue &q);
+void meta_fillbuffer(int idx, cv4l_fmt &fmt, cv4l_queue &q);
// v4l2-ctl-subdev.cpp
void subdev_usage(void);
--
2.17.1
next reply other threads:[~2019-10-03 7:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 7:06 bnvandana [this message]
2019-10-03 7:06 ` [Linux-kernel-mentees] [PATCH] v4l2-ctl: support for metadata output Vandana BN
2019-10-03 7:20 ` hverkuil
2019-10-03 7:20 ` Hans Verkuil
2019-10-03 10:54 ` [Linux-kernel-mentees] [PATCH v2] " bnvandana
2019-10-03 10:54 ` Vandana BN
2019-10-14 11:44 ` hverkuil
2019-10-14 11:44 ` Hans Verkuil
2019-10-14 13:46 ` hverkuil
2019-10-14 13:46 ` Hans Verkuil
2019-10-15 12:30 ` [Linux-kernel-mentees] [PATCH v3] " bnvandana
2019-10-15 12:30 ` Vandana BN
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