Add compress_j2k method and simple benchmark.

[libdcp.git] / src / mono_picture_frame.cc

diff --git a/src/mono_picture_frame.cc b/src/mono_picture_frame.cc
index 7a8634635769903eb8533da72a8ed16de5e6d24f..0a7d7a11bd2a5ff4c3207bf2436ad73735d2678c 100644 (file)
--- a/src/mono_picture_frame.cc
+++ b/src/mono_picture_frame.cc
@@ -28,6 +28,7 @@
 #include "colour_conversion.h"
 #include "KM_fileio.h"
 #include "AS_DCP.h"
+#include "compose.hpp"
 #include <openjpeg.h>
 
 #define DCI_GAMMA 2.6
@@ -72,7 +73,7 @@ MonoPictureFrame::MonoPictureFrame (boost::filesystem::path path, int n, ASDCP::
        _buffer = new ASDCP::JP2K::FrameBuffer (4 * Kumu::Megabyte);
 
        if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer, c))) {
-               boost::throw_exception (DCPReadError ("could not read video frame"));
+               boost::throw_exception (DCPReadError (String::compose ("could not read video frame %1 of %2", n, path.string())));
        }
 }