[libcamera-devel] [PATCH v2 6/7] v4l2: v4l2_camera_proxy: Set the compressed flag in enum_fmt

Paul Elder paul.elder at ideasonboard.com
Wed Sep 8 10:14:36 CEST 2021


Set the compressed flag in ENUM_FMT if the format is MJPEG. As the only
compressed format that libcamera currently supports is MJPEG, this
should be sufficient.

Signed-off-by: Paul Elder <paul.elder at ideasonboard.com>
---
 src/v4l2/v4l2_camera_proxy.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 5fbfcdd7..9de94fa1 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -276,8 +276,7 @@ int V4L2CameraProxy::vidioc_enum_fmt(V4L2CameraFile *file, struct v4l2_fmtdesc *
 	PixelFormat format = streamConfig_.formats().pixelformats()[arg->index];
 	const V4L2PixelFormat &v4l2Format = V4L2PixelFormat::fromPixelFormat(format);
 
-	/* \todo Set V4L2_FMT_FLAG_COMPRESSED for compressed formats. */
-	arg->flags = 0;
+	arg->flags = format == formats::MJPEG ? V4L2_FMT_FLAG_COMPRESSED : 0;
 	utils::strlcpy(reinterpret_cast<char *>(arg->description),
 		       v4l2Format.toDescription(), sizeof(arg->description));
 	arg->pixelformat = v4l2Format;
-- 
2.27.0



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