X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fresampler.cc;h=d897bf562dc4a97dcf5c314a8e7242e050f93e2f;hb=797c7543dc7fe5a9f9ddaf4c2035f9b9a7188758;hp=565fb69c29b127240b956b64e75f744bce5df8e9;hpb=8bdc282a88cbd0446b06866b9436c43200886314;p=dcpomatic.git

diff --git a/src/lib/resampler.cc b/src/lib/resampler.cc
index 565fb69c2..d897bf562 100644
--- a/src/lib/resampler.cc
+++ b/src/lib/resampler.cc
@@ -23,10 +23,13 @@ extern "C" {
 #include "resampler.h"
 #include "audio_buffers.h"
 #include "exceptions.h"
+#include "compose.hpp"
 
 #include "i18n.h"
 
 using std::cout;
+using std::pair;
+using std::make_pair;
 using boost::shared_ptr;
 
 Resampler::Resampler (int in, int out, int channels)
@@ -61,9 +64,11 @@ Resampler::~Resampler ()
 	swr_free (&_swr_context);
 }
 
-shared_ptr<const AudioBuffers>
-Resampler::run (shared_ptr<const AudioBuffers> in)
+pair<shared_ptr<const AudioBuffers>, AudioContent::Frame>
+Resampler::run (shared_ptr<const AudioBuffers> in, AudioContent::Frame frame)
 {
+	AudioContent::Frame const resamp_time = swr_next_pts (_swr_context, frame * _out_rate) / _in_rate;
+		
 	/* Compute the resampled frames count and add 32 for luck */
 	int const max_resampled_frames = ceil ((double) in->frames() * _out_rate / _in_rate) + 32;
 	shared_ptr<AudioBuffers> resampled (new AudioBuffers (_channels, max_resampled_frames));
@@ -73,14 +78,15 @@ Resampler::run (shared_ptr<const AudioBuffers> in)
 		);
 	
 	if (resampled_frames < 0) {
-		throw EncodeError (_("could not run sample-rate converter"));
+		char buf[256];
+		av_strerror (resampled_frames, buf, sizeof(buf));
+		throw EncodeError (String::compose (_("could not run sample-rate converter for %1 samples (%2) (%3)"), in->frames(), resampled_frames, buf));
 	}
 	
 	resampled->set_frames (resampled_frames);
-	return resampled;
+	return make_pair (resampled, resamp_time);
 }	
 
-/* XXX: no-one calls this */
 shared_ptr<const AudioBuffers>
 Resampler::flush ()
 {