pipewire: fix build with libcamera-0.2

Add a backport patch to fix this issue with libcamera-0.2:
| In file included from ../git/spa/plugins/libcamera/libcamera-source.cpp:188:
| ../git/spa/plugins/libcamera/libcamera-utils.cpp:719:9: error: 'Transform' does not name a type

https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/3782

Signed-off-by: Markus Volk <f_l_k@t-online.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 86 insertions, 1 deletions

diff --git a/meta-multimedia/recipes-multimedia/pipewire/pipewire/fd33d2d3bb6333c7d6e74cbaa806bff2d908f589.patch b/meta-multimedia/recipes-multimedia/pipewire/pipewire/fd33d2d3bb6333c7d6e74cbaa806bff2d908f589.patch
new file mode 100644
index 000000000..9c62df19e
--- /dev/null
+++ b/meta-multimedia/recipes-multimedia/pipewire/pipewire/fd33d2d3bb6333c7d6e74cbaa806bff2d908f589.patch
@@ -0,0 +1,82 @@
+From fd33d2d3bb6333c7d6e74cbaa806bff2d908f589 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Barnab=C3=A1s=20P=C5=91cze?= <pobrn@protonmail.com>
+Date: Sat, 28 Oct 2023 02:09:06 +0200
+Subject: [PATCH] spa: libcamera: use `CameraConfiguration::orientation`
+
+libcamera commit cc65629b68d49d ("libcamera: camera: Introduce Orientation") [0]
+introduced to the `CameraConfiguration::orientation` member to describe the
+orientation of the image in the received memory buffers.
+
+Then c65e40b8480ffb ("libcamera: Use CameraConfiguration::orientation") [1]
+removed `CameraConfiguration::transform`, which broke the libcamera plugin.
+
+Fix that by using the new `orientation` member.
+
+[0]: https://git.linuxtv.org/libcamera.git/commit/?id=cc65629b68d49d5f2a4d61537584c56ba510a335
+[1]: https://git.linuxtv.org/libcamera.git/commit/?id=c65e40b8480ffb5f50e01a4e6713164c7194a937
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/pipewire/pipewire/-/commit/fd33d2d3bb6333c7d6e74cbaa806bff2d908f589]
+---
+ spa/plugins/libcamera/libcamera-utils.cpp | 36 +++++++++++------------
+ 1 file changed, 17 insertions(+), 19 deletions(-)
+
+diff --git a/spa/plugins/libcamera/libcamera-utils.cpp b/spa/plugins/libcamera/libcamera-utils.cpp
+index 2b1aea5a76..c197248d30 100644
+--- a/spa/plugins/libcamera/libcamera-utils.cpp
++++ b/spa/plugins/libcamera/libcamera-utils.cpp
+@@ -716,25 +716,23 @@ static int spa_libcamera_use_buffers(struct impl *impl, struct port *port,
+ }
+ 
+ static const struct {
+-       Transform libcamera_transform;
+-       uint32_t spa_transform_value;
+-} transform_map[] = {
+-       { Transform::Identity, SPA_META_TRANSFORMATION_None },
+-       { Transform::Rot0, SPA_META_TRANSFORMATION_None },
+-       { Transform::HFlip, SPA_META_TRANSFORMATION_Flipped },
+-       { Transform::VFlip, SPA_META_TRANSFORMATION_Flipped180 },
+-       { Transform::HVFlip, SPA_META_TRANSFORMATION_180 },
+-       { Transform::Rot180, SPA_META_TRANSFORMATION_180 },
+-       { Transform::Transpose, SPA_META_TRANSFORMATION_Flipped90 },
+-       { Transform::Rot90, SPA_META_TRANSFORMATION_90 },
+-       { Transform::Rot270, SPA_META_TRANSFORMATION_270 },
+-       { Transform::Rot180Transpose, SPA_META_TRANSFORMATION_Flipped270 },
++       Orientation libcamera_orientation; /* clockwise rotation then horizontal mirroring */
++       uint32_t spa_transform_value; /* horizontal mirroring then counter-clockwise rotation */
++} orientation_map[] = {
++       { Orientation::Rotate0, SPA_META_TRANSFORMATION_None },
++       { Orientation::Rotate0Mirror, SPA_META_TRANSFORMATION_Flipped },
++       { Orientation::Rotate90, SPA_META_TRANSFORMATION_270 },
++       { Orientation::Rotate90Mirror, SPA_META_TRANSFORMATION_Flipped90 },
++       { Orientation::Rotate180, SPA_META_TRANSFORMATION_180 },
++       { Orientation::Rotate180Mirror, SPA_META_TRANSFORMATION_Flipped180 },
++       { Orientation::Rotate270, SPA_META_TRANSFORMATION_90 },
++       { Orientation::Rotate270Mirror, SPA_META_TRANSFORMATION_Flipped270 },
+ };
+ 
+-static uint32_t libcamera_transform_to_spa_transform_value(Transform transform)
++static uint32_t libcamera_orientation_to_spa_transform_value(Orientation orientation)
+ {
+-       for (const auto& t : transform_map) {
+-               if (t.libcamera_transform == transform)
++       for (const auto& t : orientation_map) {
++               if (t.libcamera_orientation == orientation)
+                        return t.spa_transform_value;
+        }
+        return SPA_META_TRANSFORMATION_None;
+@@ -788,9 +786,9 @@ mmap_init(struct impl *impl, struct port *port,
+                        buffers[i], SPA_META_VideoTransform, sizeof(*b->videotransform));
+                if (b->videotransform) {
+                        b->videotransform->transform =
+-                               libcamera_transform_to_spa_transform_value(impl->config->transform);
+-                       spa_log_debug(impl->log, "Setting videotransform for buffer %d to %u (from %s)",
+-                               i, b->videotransform->transform, transformToString(impl->config->transform));
++                               libcamera_orientation_to_spa_transform_value(impl->config->orientation);
++                       spa_log_debug(impl->log, "Setting videotransform for buffer %u to %u",
++                               i, b->videotransform->transform);
+ 
+                }
+ 
+-- 
+GitLab
+
diff --git a/meta-multimedia/recipes-multimedia/pipewire/pipewire_1.0.1.bb b/meta-multimedia/recipes-multimedia/pipewire/pipewire_1.0.1.bb
index a312594ad..f1b1ce586 100644
--- a/meta-multimedia/recipes-multimedia/pipewire/pipewire_1.0.1.bb
+++ b/meta-multimedia/recipes-multimedia/pipewire/pipewire_1.0.1.bb
@@ -13,7 +13,10 @@ LIC_FILES_CHKSUM = " \
 DEPENDS = "dbus ncurses"
 
 SRCREV = "79b98884af80329f59596906231da5597bcdb7b6"
-SRC_URI = "git://gitlab.freedesktop.org/pipewire/pipewire.git;branch=1.0;protocol=https"
+SRC_URI = " \
+        git://gitlab.freedesktop.org/pipewire/pipewire.git;branch=1.0;protocol=https \
+        file://fd33d2d3bb6333c7d6e74cbaa806bff2d908f589.patch \
+"
 
 S = "${WORKDIR}/git"