jpegenc: Adds another test case

Adds a test for jpegenc to check that is possible to negotiate and
push buffers with different resolution one after another.

https://bugzilla.gnome.org/show_bug.cgi?id=637686

tests/check/Makefile.am

@@ -202,6 +202,9 @@ elements_interleave_LDADD = $(GST_PLUGINS_BASE_LIBS) -lgstaudio-$(GST_MAJORMINOR
 elements_imagefreeze_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(AM_CFLAGS)
 elements_imagefreeze_LDADD = $(GST_BASE_LIBS) $(LDADD) -lgstvideo-$(GST_MAJORMINOR)
 
+elements_jpegenc_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(AM_CFLAGS)
+elements_jpegenc_LDADD = $(GST_BASE_LIBS) $(LDADD) -lgstapp-0.10
+
 elements_level_LDADD = $(LDADD) $(LIBM)
 
 elements_matroskamux_LDADD = $(GST_BASE_LIBS) $(LDADD) $(LIBM)

tests/check/elements/jpegenc.c

@@ -23,11 +23,13 @@
 #include <unistd.h>
 
 #include <gst/check/gstcheck.h>
+#include <gst/app/gstappsink.h>
 
 /* For ease of programming we use globals to keep refs for our floating
  * sink pads we create; otherwise we always have to do get_pad,
  * get_peer, and then remove references in every test function */
 static GstPad *mysinkpad;
+static GstPad *mysrcpad;
 
 #define JPEG_CAPS_STRING "image/jpeg"
 
@@ -52,6 +54,12 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS (JPEG_CAPS_RESTRICTIVE));
 
+static GstStaticPadTemplate any_srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+
 static GstElement *
 setup_jpegenc (GstStaticPadTemplate * sinktemplate)
 {
@@ -60,6 +68,8 @@ setup_jpegenc (GstStaticPadTemplate * sinktemplate)
   GST_DEBUG ("setup_jpegenc");
   jpegenc = gst_check_setup_element ("jpegenc");
   mysinkpad = gst_check_setup_sink_pad (jpegenc, sinktemplate, NULL);
+  mysrcpad = gst_check_setup_src_pad (jpegenc, &any_srctemplate, NULL);
+  gst_pad_set_active (mysrcpad, TRUE);
   gst_pad_set_active (mysinkpad, TRUE);
 
   return jpegenc;
@@ -71,11 +81,44 @@ cleanup_jpegenc (GstElement * jpegenc)
   GST_DEBUG ("cleanup_jpegenc");
   gst_element_set_state (jpegenc, GST_STATE_NULL);
 
+  gst_pad_set_active (mysrcpad, FALSE);
   gst_pad_set_active (mysinkpad, FALSE);
   gst_check_teardown_sink_pad (jpegenc);
+  gst_check_teardown_src_pad (jpegenc);
   gst_check_teardown_element (jpegenc);
 }
 
+static GstBuffer *
+create_video_buffer (GstCaps * caps)
+{
+  GstElement *pipeline;
+  GstElement *cf;
+  GstElement *sink;
+  GstBuffer *buffer;
+
+  pipeline =
+      gst_parse_launch
+      ("videotestsrc num-buffers=1 ! capsfilter name=cf ! appsink name=sink",
+      NULL);
+  g_assert (pipeline != NULL);
+
+  cf = gst_bin_get_by_name (GST_BIN (pipeline), "cf");
+  sink = gst_bin_get_by_name (GST_BIN (pipeline), "sink");
+
+  g_object_set (G_OBJECT (cf), "caps", caps, NULL);
+
+  gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+  buffer = gst_app_sink_pull_buffer (GST_APP_SINK (sink));
+
+  gst_element_set_state (pipeline, GST_STATE_NULL);
+  gst_object_unref (pipeline);
+  gst_object_unref (sink);
+  gst_object_unref (cf);
+  return buffer;
+}
+
+
 GST_START_TEST (test_jpegenc_getcaps)
 {
   GstElement *jpegenc;
@@ -129,6 +172,50 @@ GST_START_TEST (test_jpegenc_getcaps)
 
 GST_END_TEST;
 
+
+GST_START_TEST (test_jpegenc_different_caps)
+{
+  GstElement *jpegenc;
+  GstBuffer *buffer;
+  GstCaps *caps;
+  GstCaps *allowed_caps;
+
+  /* now use a more restricted one and check the resulting caps */
+  jpegenc = setup_jpegenc (&any_sinktemplate);
+  gst_element_set_state (jpegenc, GST_STATE_PLAYING);
+
+  /* push first buffer with 800x600 resolution */
+  caps = gst_caps_new_simple ("video/x-raw-yuv", "width", G_TYPE_INT,
+      800, "height", G_TYPE_INT, 600, "framerate",
+      GST_TYPE_FRACTION, 1, 1, "format", GST_TYPE_FOURCC,
+      GST_MAKE_FOURCC ('I', '4', '2', '0'), NULL);
+  buffer = create_video_buffer (caps);
+  gst_caps_unref (caps);
+  fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
+
+  /* check the allowed caps to see if a second buffer with a different
+   * caps could be negotiated */
+  allowed_caps = gst_pad_get_allowed_caps (mysrcpad);
+
+  /* the caps we want to negotiate to */
+  caps = gst_caps_new_simple ("video/x-raw-yuv", "width", G_TYPE_INT,
+      640, "height", G_TYPE_INT, 480, "framerate",
+      GST_TYPE_FRACTION, 1, 1, "format", GST_TYPE_FOURCC,
+      GST_MAKE_FOURCC ('I', '4', '2', '0'), NULL);
+  fail_unless (gst_caps_can_intersect (allowed_caps, caps));
+
+  /* push second buffer with 640x480 resolution */
+  buffer = create_video_buffer (caps);
+  gst_caps_unref (caps);
+  fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
+
+  gst_caps_unref (allowed_caps);
+  gst_element_set_state (jpegenc, GST_STATE_NULL);
+  cleanup_jpegenc (jpegenc);
+}
+
+GST_END_TEST;
+
 static Suite *
 jpegenc_suite (void)
 {
@@ -137,6 +224,7 @@ jpegenc_suite (void)
 
   suite_add_tcase (s, tc_chain);
   tcase_add_test (tc_chain, test_jpegenc_getcaps);
+  tcase_add_test (tc_chain, test_jpegenc_different_caps);
 
   return s;
 }