From dc219af36ebaf40b1b712cc8f46973dec91171ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Fri, 18 May 2018 11:42:24 +0300
Subject: [PATCH] Add another comment to the appsrc example about the need-data
 callback not being mandatory

---
 examples/src/bin/appsrc.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/src/bin/appsrc.rs b/examples/src/bin/appsrc.rs
index df8326f67..ca6ff3e7b 100644
--- a/examples/src/bin/appsrc.rs
+++ b/examples/src/bin/appsrc.rs
@@ -60,6 +60,11 @@ fn create_pipeline() -> Result<gst::Pipeline, Error> {
 
     // Our frame counter, that is stored in the mutable environment
     // of the closure of the need-data callback
+    //
+    // Alternatively we could also simply start a new thread that
+    // pushes a buffer to the appsrc whenever it wants to, but this
+    // is not really needed here. It is *not required* to use the
+    // need-data callback.
     let mut i = 0;
     appsrc.set_callbacks(
         gst_app::AppSrcCallbacks::new()