camerabin2: Add flags prop to toggle encodebin conversion elements

A flags property has been added to encodebin to toggle whether the
conversion elements (ffmpegcolorspace, videoscale, audioconvert,
audioresample, audiorate) are created and linked into the appropriate
branches of encodebin.

Not including these elements avoids some slow caps negotiation and
allows the first buffers to flow through encodebin much more quickly.
However, it imposes that the uncompressed input is appropriate for the
target profile and elements selected to meet that profile.

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/examples/camerabin2/gst-camerabin2-test.c b/tests/examples/camerabin2/gst-camerabin2-test.c
index abeeb9d02..4e7492764 100644
--- a/tests/examples/camerabin2/gst-camerabin2-test.c
+++ b/tests/examples/camerabin2/gst-camerabin2-test.c
@@ -217,6 +217,7 @@ static gchar *viewfinder_caps_str = NULL;
 static gchar *video_capture_caps_str = NULL;
 static gboolean performance_measure = FALSE;
 static gchar *performance_targets_str = NULL;
+static gchar *camerabin2_flags = NULL;
 
 
 #define MODE_VIDEO 2
@@ -676,6 +677,8 @@ setup_pipeline (void)
 
   GST_INFO_OBJECT (camerabin, "camerabin2 created");
 
+  gst_util_set_object_arg (camerabin, "flags", camerabin2_flags);
+
   if (videosrc_name) {
     GstElement *wrapper;
     GstElement *videosrc;
@@ -1234,6 +1237,8 @@ main (int argc, char *argv[])
           ", shot to snapshot, shot to shot, preview to shot, shot to buffer. "
           "e.g. 3.5,1.0,5.0,2.5,5.0,1.5,1.0",
         NULL},
+    {"flags", '\0', 0, G_OPTION_ARG_STRING, &camerabin2_flags,
+        "camerabin2 element flags (default = 0)", NULL},
     {NULL}
   };