splitmux: Implement new elements for splitting files at mux level.

Implement 2 new elements - splitmuxsink and splitmuxsrc.

splitmuxsink is a bin which wraps a muxer and takes 1 video stream,
plus audio/subtitle streams, and starts a new file
whenever necessary to avoid overrunning a threshold of either bytes
or time. New files are started at a keyframe, and corresponding audio
and subtitle streams are split at packet boundaries to match
video GOP timestamps.

splitmuxsrc is a corresponding source element which handles
the splitmux:// URL and plays back all component files,
reconstructing the original elementary streams as it goes.

3 files changed, 128 insertions, 1 deletions

diff --git a/tests/check/Makefile.am b/tests/check/Makefile.am
index 0d3288acd..407e11ff4 100644
--- a/tests/check/Makefile.am
+++ b/tests/check/Makefile.am
@@ -198,7 +198,7 @@ check_matroska =
 endif
 
 if USE_PLUGIN_MULTIFILE
-check_multifile = elements/multifile
+check_multifile = elements/multifile elements/splitmux
 else
 check_multifile =
 endif
diff --git a/tests/check/elements/.gitignore b/tests/check/elements/.gitignore
index e2b47de91..dcfa3eac7 100644
--- a/tests/check/elements/.gitignore
+++ b/tests/check/elements/.gitignore
@@ -58,6 +58,7 @@ rtprtx
 shapewipe
 souphttpsrc
 spectrum
+splitmux
 sunaudio
 udpsink
 udpsrc
diff --git a/tests/check/elements/splitmux.c b/tests/check/elements/splitmux.c
new file mode 100644
index 000000000..00698e24b
--- /dev/null
+++ b/tests/check/elements/splitmux.c
@@ -0,0 +1,126 @@
+/* GStreamer unit test for splitmuxsrc/sink elements
+ *
+ * Copyright (C) 2007 David A. Schleef <ds@schleef.org>
+ * Copyright (C) 2015 Jan Schmidt <jan@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <glib/gstdio.h>
+#include <unistd.h>
+
+#include <gst/check/gstcheck.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+gchar *tmpdir = NULL;
+
+static void
+tempdir_setup (void)
+{
+  const gchar *systmp = g_get_tmp_dir ();
+  tmpdir = g_build_filename (systmp, "splitmux-test-XXXXXX", NULL);
+  /* Rewrites tmpdir template input: */
+  tmpdir = g_mkdtemp (tmpdir);
+}
+
+static void
+tempdir_cleanup (void)
+{
+  GDir *d;
+  const gchar *f;
+
+  fail_if (tmpdir == NULL);
+
+  d = g_dir_open (tmpdir, 0, NULL);
+  fail_if (d == NULL);
+
+  while ((f = g_dir_read_name (d)) != NULL)
+    fail_if (g_remove (f) != 0);
+  g_dir_close (d);
+
+  fail_if (g_remove (tmpdir) != 0);
+
+  g_free (tmpdir);
+  tmpdir = NULL;
+}
+
+static GstMessage *
+run_pipeline (GstElement * pipeline)
+{
+  GstBus *bus = gst_element_get_bus (GST_ELEMENT (pipeline));
+  GstMessage *msg;
+
+  gst_element_set_state (pipeline, GST_STATE_PLAYING);
+  msg = gst_bus_poll (bus, GST_MESSAGE_EOS | GST_MESSAGE_ERROR, -1);
+  gst_element_set_state (pipeline, GST_STATE_NULL);
+
+  gst_object_unref (bus);
+
+  return msg;
+}
+
+GST_START_TEST (test_splitmuxsrc)
+{
+  GstMessage *msg;
+  GstElement *pipeline;
+  GstElement *fakesink;
+  gchar *in_pattern;
+  gchar *uri;
+
+  pipeline = gst_element_factory_make ("playbin", NULL);
+  fail_if (pipeline == NULL);
+
+  fakesink = gst_element_factory_make ("fakesink", NULL);
+  fail_if (fakesink == NULL);
+  g_object_set (G_OBJECT (pipeline), "video-sink", fakesink, NULL);
+
+  in_pattern = g_build_filename (GST_TEST_FILES_PATH, "splitvideo*.ogg", NULL);
+  uri = g_strdup_printf ("splitmux://%s", in_pattern);
+  g_free (in_pattern);
+
+  g_object_set (G_OBJECT (pipeline), "uri", uri, NULL);
+  g_free (uri);
+
+  msg = run_pipeline (pipeline);
+  gst_object_unref (pipeline);
+
+  fail_if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR);
+  gst_message_unref (msg);
+}
+
+GST_END_TEST;
+
+static Suite *
+splitmux_suite (void)
+{
+  Suite *s = suite_create ("splitmux");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+
+  tcase_add_checked_fixture (tc_chain, tempdir_setup, tempdir_cleanup);
+
+  tcase_add_test (tc_chain, test_splitmuxsrc);
+
+  return s;
+}
+
+GST_CHECK_MAIN (splitmux);