From 6925a7583117a29cdc65c02b3c78879c90e157b4 Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Sun, 15 Sep 2019 18:01:38 -0400
Subject: [PATCH] codec not ready is not an error.  Make it a debug

---
 src/zm_ffmpeg.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/zm_ffmpeg.cpp b/src/zm_ffmpeg.cpp
index 81506cad2..339b54c6c 100644
--- a/src/zm_ffmpeg.cpp
+++ b/src/zm_ffmpeg.cpp
@@ -547,8 +547,14 @@ int zm_send_packet_receive_frame(
   }
 
   if ( (ret = avcodec_receive_frame(context, frame)) < 0 ) {
-    Error("Unable to send packet %s, continuing",
-        av_make_error_string(ret).c_str());
+    if ( AVERROR(EAGAIN) == ret ) {
+      // The codec may need more samples than it has, perfectly valid
+      Debug(2, "Codec not ready to give us a frame");
+      return 0;
+    } else {
+      Error("Could not recieve frame (error %d = '%s')", ret,
+          av_make_error_string(ret).c_str());
+    }
     return ret;
   }
 # else