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From: Sarah Gershuni <sarah556726@gmail.com>
To: linux-media@vger.kernel.org
Cc: Sarah Gershuni <sarah556726@gmail.com>
Subject: [PATCH v4l-utils 1/2] add plane_bytesperline to trace_context
Date: Mon, 16 Mar 2026 15:22:22 +0200	[thread overview]
Message-ID: <20260316132223.7337-2-sarah556726@gmail.com> (raw)
In-Reply-To: <20260316132223.7337-1-sarah556726@gmail.com>

Add plane_bytesperline array to trace_context to store stride per plane for
multiplanar formats. Update g_fmt_setup_trace to initialize the array.

Signed-off-by: Sarah Gershuni <sarah556726@gmail.com>
---
 utils/v4l2-tracer/trace-helper.cpp | 15 +++++++++++++--
 utils/v4l2-tracer/trace.h          |  1 +
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/utils/v4l2-tracer/trace-helper.cpp b/utils/v4l2-tracer/trace-helper.cpp
index 9e5747a2..6c296dbf 100644
--- a/utils/v4l2-tracer/trace-helper.cpp
+++ b/utils/v4l2-tracer/trace-helper.cpp
@@ -399,16 +399,27 @@ void g_fmt_setup_trace(struct v4l2_format *format)
 		ctx_trace.width = format->fmt.pix.width;
 		ctx_trace.height = format->fmt.pix.height;
 		ctx_trace.pixelformat = format->fmt.pix.pixelformat;
+		ctx_trace.plane_bytesperline[0] = format->fmt.pix.bytesperline;
 	}
 	if (format->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 		ctx_trace.width = format->fmt.pix_mp.width;
 		ctx_trace.height = format->fmt.pix_mp.height;
 		ctx_trace.pixelformat = format->fmt.pix_mp.pixelformat;
+
+		for (unsigned i = 0; i < format->fmt.pix_mp.num_planes; i++){
+			ctx_trace.plane_bytesperline[i] = format->fmt.pix_mp.plane_fmt[i].bytesperline;
+		}
 	}
-	if (format->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+	if (format->type == V4L2_BUF_TYPE_VIDEO_OUTPUT){
 		ctx_trace.compression_format = format->fmt.pix.pixelformat;
-	if (format->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		ctx_trace.plane_bytesperline[0] = format->fmt.pix.bytesperline;
+	}
+	if (format->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE){
 		ctx_trace.compression_format = format->fmt.pix_mp.pixelformat;
+		for (unsigned i = 0; i < format->fmt.pix_mp.num_planes; i++){
+			ctx_trace.plane_bytesperline[i] = format->fmt.pix_mp.plane_fmt[i].bytesperline;
+		}
+	}
 }
 
 void s_fmt_setup(struct v4l2_format *format)
diff --git a/utils/v4l2-tracer/trace.h b/utils/v4l2-tracer/trace.h
index a74a5f3f..7f166287 100644
--- a/utils/v4l2-tracer/trace.h
+++ b/utils/v4l2-tracer/trace.h
@@ -32,6 +32,7 @@ struct trace_context {
 	__u32 pixelformat;
 	std::string media_device;
 	__u32 compression_format;
+	__u32 plane_bytesperline[VIDEO_MAX_PLANES];
 	union {
 		struct h264_info h264;
 	} fmt;
-- 
2.43.0


  reply	other threads:[~2026-03-16 13:24 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-16 13:22 [PATCH v4l-utils 0/2] v4l2-tracer: fix expected frame length calculation Sarah Gershuni
2026-03-16 13:22 ` Sarah Gershuni [this message]
2026-03-16 13:22 ` [PATCH v4l-utils 2/2] calculate expected length using v4l2-fwht info Sarah Gershuni
2026-03-17 12:10   ` Hans Verkuil

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