diff options
Diffstat (limited to 'src/asset.cc')
| -rw-r--r-- | src/asset.cc | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/asset.cc b/src/asset.cc index 740dc592..86bd54c5 100644 --- a/src/asset.cc +++ b/src/asset.cc @@ -22,6 +22,7 @@ */ #include <iostream> +#include <fstream> #include <boost/filesystem.hpp> #include "AS_DCP.h" #include "KM_util.h" @@ -93,3 +94,45 @@ Asset::mxf_path () const p /= _mxf_name; return p; } + +list<string> +Asset::equals (Asset const & other, EqualityFlags flags) const +{ + list<string> notes; + + switch (flags) { + case LIBDCP_METADATA: + break; + case MXF_BITWISE: + if (filesystem::file_size (mxf_path()) != filesystem::file_size (other.mxf_path())) { + notes.push_back (mxf_path().string() + " and " + other.mxf_path().string() + " sizes differ"); + return notes; + } + + ifstream a (mxf_path().c_str(), ios::binary); + ifstream b (other.mxf_path().c_str(), ios::binary); + + int buffer_size = 65536; + char abuffer[buffer_size]; + char bbuffer[buffer_size]; + + int n = filesystem::file_size (mxf_path ()); + + while (n) { + int const t = min (n, buffer_size); + a.read (abuffer, t); + b.read (bbuffer, t); + + for (int i = 0; i < t; ++i) { + if (abuffer[i] != bbuffer[i]) { + notes.push_back (mxf_path().string() + " and " + other.mxf_path().string() + " content differs"); + return notes; + } + } + + n -= t; + } + } + + return notes; +} |