interlace: Specify interlace-modes in the sink pad template

Especially specify the field-order in the interleaved mode. Otherwise it
might cause the negotiation to fail, because
GST_PAD_SET_ACCEPT_INTERSECT is not set on the sinkpad, and the
field-order is missing in the sink template but can be present in the
outside caps.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2062>

2 files changed, 9 insertions, 3 deletions

diff --git a/docs/plugins/gst_plugins_cache.json b/docs/plugins/gst_plugins_cache.json
index 7ae10c06d..9f995d555 100644
--- a/docs/plugins/gst_plugins_cache.json
+++ b/docs/plugins/gst_plugins_cache.json
@@ -26630,7 +26630,7 @@
                 "long-name": "Interlace filter",
                 "pad-templates": {
                     "sink": {
-                        "caps": "video/x-raw:\n         format: { AYUV64, Y412_BE, Y412_LE, A444_10BE, A444_10LE, AYUV, VUYA, A422_10BE, A422_10LE, A420_10BE, A420_10LE, A420, Y444_16BE, Y444_16LE, Y444_12BE, Y444_12LE, Y410, Y444_10BE, Y444_10LE, v308, IYU2, Y444, NV24, v216, I422_12BE, I422_12LE, Y212_BE, Y212_LE, UYVP, Y210, NV16_10LE32, v210, I422_10BE, I422_10LE, YUY2, UYVY, VYUY, YVYU, Y42B, NV16, NV61, P016_BE, P016_LE, I420_12BE, I420_12LE, P012_BE, P012_LE, NV12_10LE40, NV12_10LE32, I420_10BE, I420_10LE, P010_10BE, P010_10LE, I420, YV12, NV12, NV21, IYU1, Y41B, YUV9, YVU9 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\n",
+                        "caps": "video/x-raw:\n         format: { AYUV64, Y412_BE, Y412_LE, A444_10BE, A444_10LE, AYUV, VUYA, A422_10BE, A422_10LE, A420_10BE, A420_10LE, A420, Y444_16BE, Y444_16LE, Y444_12BE, Y444_12LE, Y410, Y444_10BE, Y444_10LE, v308, IYU2, Y444, NV24, v216, I422_12BE, I422_12LE, Y212_BE, Y212_LE, UYVP, Y210, NV16_10LE32, v210, I422_10BE, I422_10LE, YUY2, UYVY, VYUY, YVYU, Y42B, NV16, NV61, P016_BE, P016_LE, I420_12BE, I420_12LE, P012_BE, P012_LE, NV12_10LE40, NV12_10LE32, I420_10BE, I420_10LE, P010_10BE, P010_10LE, I420, YV12, NV12, NV21, IYU1, Y41B, YUV9, YVU9 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\n interlace-mode: progressive\nvideo/x-raw:\n         format: { AYUV64, Y412_BE, Y412_LE, A444_10BE, A444_10LE, AYUV, VUYA, A422_10BE, A422_10LE, A420_10BE, A420_10LE, A420, Y444_16BE, Y444_16LE, Y444_12BE, Y444_12LE, Y410, Y444_10BE, Y444_10LE, v308, IYU2, Y444, NV24, v216, I422_12BE, I422_12LE, Y212_BE, Y212_LE, UYVP, Y210, NV16_10LE32, v210, I422_10BE, I422_10LE, YUY2, UYVY, VYUY, YVYU, Y42B, NV16, NV61, P016_BE, P016_LE, I420_12BE, I420_12LE, P012_BE, P012_LE, NV12_10LE40, NV12_10LE32, I420_10BE, I420_10LE, P010_10BE, P010_10LE, I420, YV12, NV12, NV21, IYU1, Y41B, YUV9, YVU9 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\n interlace-mode: interleaved\n    field-order: { (string)top-field-first, (string)bottom-field-first }\nvideo/x-raw:\n         format: { AYUV64, Y412_BE, Y412_LE, A444_10BE, A444_10LE, AYUV, VUYA, A422_10BE, A422_10LE, A420_10BE, A420_10LE, A420, Y444_16BE, Y444_16LE, Y444_12BE, Y444_12LE, Y410, Y444_10BE, Y444_10LE, v308, IYU2, Y444, NV24, v216, I422_12BE, I422_12LE, Y212_BE, Y212_LE, UYVP, Y210, NV16_10LE32, v210, I422_10BE, I422_10LE, YUY2, UYVY, VYUY, YVYU, Y42B, NV16, NV61, P016_BE, P016_LE, I420_12BE, I420_12LE, P012_BE, P012_LE, NV12_10LE40, NV12_10LE32, I420_10BE, I420_10LE, P010_10BE, P010_10LE, I420, YV12, NV12, NV21, IYU1, Y41B, YUV9, YVU9 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\n interlace-mode: mixed\n\nvideo/x-raw(format:Interlaced):\n         format: { AYUV64, Y412_BE, Y412_LE, A444_10BE, A444_10LE, AYUV, VUYA, A422_10BE, A422_10LE, A420_10BE, A420_10LE, A420, Y444_16BE, Y444_16LE, Y444_12BE, Y444_12LE, Y410, Y444_10BE, Y444_10LE, v308, IYU2, Y444, NV24, v216, I422_12BE, I422_12LE, Y212_BE, Y212_LE, UYVP, Y210, NV16_10LE32, v210, I422_10BE, I422_10LE, YUY2, UYVY, VYUY, YVYU, Y42B, NV16, NV61, P016_BE, P016_LE, I420_12BE, I420_12LE, P012_BE, P012_LE, NV12_10LE40, NV12_10LE32, I420_10BE, I420_10LE, P010_10BE, P010_10LE, I420, YV12, NV12, NV21, IYU1, Y41B, YUV9, YVU9 }\n          width: [ 1, 2147483647 ]\n         height: [ 1, 2147483647 ]\n      framerate: [ 0/1, 2147483647/1 ]\n interlace-mode: alternate\n",
                         "direction": "sink",
                         "presence": "always"
                     },
diff --git a/gst/interlace/gstinterlace.c b/gst/interlace/gstinterlace.c
index 5cd7d98dd..a49d974d9 100644
--- a/gst/interlace/gstinterlace.c
+++ b/gst/interlace/gstinterlace.c
@@ -211,10 +211,16 @@ static GstStaticPadTemplate gst_interlace_src_template =
     );
 
 static GstStaticPadTemplate gst_interlace_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (VIDEO_FORMATS))
+    GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (VIDEO_FORMATS)
+        ",interlace-mode=progressive ;" GST_VIDEO_CAPS_MAKE (VIDEO_FORMATS)
+        ",interlace-mode=interleaved,field-order={top-field-first,bottom-field-first}; "
+        GST_VIDEO_CAPS_MAKE (VIDEO_FORMATS) ",interlace-mode=mixed ;"
+        GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_FORMAT_INTERLACED,
+            VIDEO_FORMATS)
+        ",interlace-mode=alternate")
     );
 
 GType gst_interlace_get_type (void);