diff --git a/tools/gource/create_auth_context.h b/tools/gource/create_auth_context.h
new file mode 100644
index 0000000000000000000000000000000000000000..387407bfec5d8e4d106940e5642e46d976df2258
--- /dev/null
+++ b/tools/gource/create_auth_context.h
@@ -0,0 +1,42 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#include <memory>
+
+#include <grpc++/security/auth_context.h>
+#include <grpc/grpc.h>
+
+namespace grpc {
+
+std::shared_ptr<const AuthContext> CreateAuthContext(grpc_call* call);
+
+} // namespace grpc
diff --git a/tools/gource/gen-all-logs.sh b/tools/gource/gen-all-logs.sh
new file mode 100755
index 0000000000000000000000000000000000000000..85352c514e92c8c6f6caef5bdc07c112fafb84c9
--- /dev/null
+++ b/tools/gource/gen-all-logs.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set -ex
+
+outdir=`pwd`
+
+tmpdir=`mktemp -d`
+mkdir -p $tmpdir/logs
+repos="grpc grpc-common grpc-go grpc-java grpc.github.io grpc-tools homebrew-grpc grpc-docker-library"
+for repo in $repos
+do
+ cd $tmpdir
+ git clone https://github.com/grpc/$repo.git
+ cd $repo
+ gource --output-custom-log $tmpdir/logs/$repo
+ sed -i .backup "s,\|/,\|/$repo/,g" $tmpdir/logs/$repo
+done
+rm $tmpdir/logs/*.backup
+cat $tmpdir/logs/* | sort -n > $outdir/all-logs.txt
diff --git a/tools/gource/gource.sh b/tools/gource/gource.sh
index 0199609e9b2ce88ae4cef357d8cc54af3c078524..b3dad5d7c7a42e01b0bd45065e22a96c56d74351 100755
--- a/tools/gource/gource.sh
+++ b/tools/gource/gource.sh
@@ -28,5 +28,13 @@
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-gource --multi-sampling -c 4 -s 0.1 --max-file-lag 0.05 --max-files 0 -e 0.05 --hide filenames,dirnames $*
-
+gource \
+ --multi-sampling \
+ -s 0.1 \
+ --max-file-lag 0.05 \
+ --max-files 0 \
+ -e 0.01 \
+ --hide filenames,dirnames \
+ --disable-auto-rotate \
+ --file-filter '/grpc/doc/ref' \
+ $*
diff --git a/tools/gource/make-video.sh b/tools/gource/make-video.sh
new file mode 100755
index 0000000000000000000000000000000000000000..02d79df81bf66e777b9fb0456e7190224ce6b013
--- /dev/null
+++ b/tools/gource/make-video.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set -ex
+
+dst=$1
+shift
+$(dirname $0)/gource.sh \
+ --disable-progress \
+ --stop-at-end \
+ --output-ppm-stream - \
+ $@ | \
+ffmpeg \
+ -y \
+ -r 60 \
+ -f image2pipe \
+ -vcodec ppm \
+ -i - \
+ -vcodec libx264 \
+ $dst