X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fsound_asset.cc;h=a8b6372748c83069221fc95790bc5b8b36f6215e;hb=bc09fbc79580f56c93e35de25230af18b30e0e1e;hp=71d1d9ff0a29e0f5185a98ea818e1c677da7cfb3;hpb=8d94e57248b7957d62350083a93aa479457f9385;p=libdcp.git

diff --git a/src/sound_asset.cc b/src/sound_asset.cc
index 71d1d9ff..a8b63727 100644
--- a/src/sound_asset.cc
+++ b/src/sound_asset.cc
@@ -232,7 +232,7 @@ SoundAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt) const
 			}
 
 			if (buffer_A.Size() != buffer_B.Size()) {
-				notes.push_back ("sizes of video data for frame " + lexical_cast<string>(i) + " differ");
+				notes.push_back ("sizes of audio data for frame " + lexical_cast<string>(i) + " differ");
 				continue;
 			}
 
@@ -245,3 +245,22 @@ SoundAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt) const
 
 	return notes;
 }
+
+
+int
+SoundAsset::sampling_rate () const
+{
+	ASDCP::PCM::MXFReader reader;
+	if (ASDCP_FAILURE (reader.OpenRead (mxf_path().string().c_str()))) {
+		throw FileError ("could not open MXF file for reading", mxf_path().string());
+	}
+
+	
+	ASDCP::PCM::AudioDescriptor desc;
+	if (ASDCP_FAILURE (reader.FillAudioDescriptor (desc))) {
+		throw DCPReadError ("could not read audio MXF information");
+	}
+
+	return desc.AudioSamplingRate.Numerator / desc.AudioSamplingRate.Denominator;
+}
+