X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Faudio_filter_graph.cc;h=0eeeb3c4ae5858b094ffd4f5da58ab659f9d3b75;hp=744fdb2b7213d9dfbb0b21964939af543bc383bb;hb=a5be11a965c2c38442e4e069874e7e21b5b43a5c;hpb=b1dc9c3a2f7e55c9afc5bf2d5b465371b048e14f

diff --git a/src/lib/audio_filter_graph.cc b/src/lib/audio_filter_graph.cc
index 744fdb2b7..0eeeb3c4a 100644
--- a/src/lib/audio_filter_graph.cc
+++ b/src/lib/audio_filter_graph.cc
@@ -24,11 +24,14 @@
 extern "C" {
 #include <libavfilter/buffersink.h>
 #include <libavfilter/buffersrc.h>
+#include <libavutil/channel_layout.h>
 }
+#include <iostream>
 
 #include "i18n.h"
 
 using std::string;
+using std::cout;
 using boost::shared_ptr;
 
 AudioFilterGraph::AudioFilterGraph (int sample_rate, int channels)
@@ -104,6 +107,7 @@ AudioFilterGraph::sink_name () const
 void
 AudioFilterGraph::process (shared_ptr<const AudioBuffers> buffers)
 {
+	DCPOMATIC_ASSERT (buffers->frames() > 0);
 	int const process_channels = av_get_channel_layout_nb_channels (_channel_layout);
 	DCPOMATIC_ASSERT (process_channels >= buffers->channels());