v4l2src: fix support for bayer format

- Define a new function that identify if the v4l2object is raw based
on pixel format
- Only consider setting delta flag on buffer if the video is not raw.

Sponsored by Living Optics Ltd.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4867>

diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2bufferpool.c b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2bufferpool.c
index f6c1ba6..3e1098d 100644 (file)
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2bufferpool.c
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2bufferpool.c
@@ -1378,7 +1378,7 @@ gst_v4l2_buffer_pool_dqbuf (GstV4l2BufferPool * pool, GstBuffer ** buffer,
       break;
   }
 
-  if (GST_VIDEO_INFO_FORMAT (&obj->info) == GST_VIDEO_FORMAT_ENCODED) {
+  if (!gst_v4l2_object_is_raw (obj)) {
     if ((group->buffer.flags & V4L2_BUF_FLAG_KEYFRAME) ||
         GST_V4L2_PIXELFORMAT (obj) == V4L2_PIX_FMT_MJPEG ||
         GST_V4L2_PIXELFORMAT (obj) == V4L2_PIX_FMT_JPEG ||

diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
index 1c08b45..6d8a725 100644 (file)
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
@@ -1668,6 +1668,22 @@ done:
   return template;
 }
 
+gboolean
+gst_v4l2_object_is_raw (GstV4l2Object * v4l2object)
+{
+  gint i;
+
+  if (GST_VIDEO_INFO_FORMAT (&v4l2object->info) != GST_VIDEO_FORMAT_ENCODED)
+    return TRUE;
+
+  for (i = 0; i < GST_V4L2_FORMAT_COUNT; i++) {
+    if (gst_v4l2_formats[i].format == GST_V4L2_PIXELFORMAT (v4l2object)) {
+      return ! !(gst_v4l2_formats[i].flags & GST_V4L2_RAW);
+    }
+  }
+  return FALSE;
+}
+
 /* Add an 'alternate' variant of the caps with the feature */
 static void
 add_alternate_variant (GstV4l2Object * v4l2object, GstCaps * caps,

diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.h b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.h
index f749e62..407b9a2 100644 (file)
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.h
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.h
@@ -320,6 +320,8 @@ GstStructure * gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc);
 GstFlowReturn  gst_v4l2_object_poll (GstV4l2Object * v4l2object, GstClockTime timeout);
 gboolean       gst_v4l2_object_subscribe_event (GstV4l2Object * v4l2object, guint32 event);
 
+gboolean     gst_v4l2_object_is_raw (GstV4l2Object * obj);
+
 /* crop / compose */
 gboolean     gst_v4l2_object_set_crop (GstV4l2Object * obj, struct v4l2_rect *result);
 gboolean     gst_v4l2_object_get_crop_bounds (GstV4l2Object * obj, struct v4l2_rect *bounds);