Try to handle EAGAIN from avcodec_send_packet() properly.

The docs say on EAGAIN we should call avcodec_receive_frame()
and then re-send the same packet again.  This should do that.

This is a fix for errors trigged by the accompanying test.

1 files changed, 7 insertions, 0 deletions

diff --git a/test/ffmpeg_examiner_test.cc b/test/ffmpeg_examiner_test.cc
index c460830fb..2c244f541 100644
--- a/test/ffmpeg_examiner_test.cc
+++ b/test/ffmpeg_examiner_test.cc
@@ -76,3 +76,10 @@ BOOST_AUTO_TEST_CASE (ffmpeg_examiner_vob_test)
 	auto examiner = make_shared<FFmpegExaminer>(content);
 }
 
+
+/** Check that another file can be examined without error */
+BOOST_AUTO_TEST_CASE (ffmpeg_examiner_mkv_test)
+{
+	auto content = make_shared<FFmpegContent>(TestPaths::private_data() / "sample.mkv");
+	auto examiner = make_shared<FFmpegExaminer>(content);
+}