Don't bother making AVPackets if x264 has no data for us.

Also gives the first SEI a more sane timestamp.

diff --git a/x264_encoder.cpp b/x264_encoder.cpp
index f909f55e555bea9ee3369b62ad8509f207c324ee..6006e0e6843b0c32204411c4681d89edef754e25 100644 (file)
--- a/x264_encoder.cpp
+++ b/x264_encoder.cpp
@@ -278,6 +278,8 @@ void X264Encoder::encode_frame(X264Encoder::QueuedFrame qf)
                speed_control->after_frame();
        }
 
+       if (num_nal == 0) return;
+
        // We really need one AVPacket for the entire frame, it seems,
        // so combine it all.
        size_t num_bytes = buffered_sei.size();