diff options
Diffstat (limited to 'src/asset_writer.cc')
| -rw-r--r-- | src/asset_writer.cc | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/asset_writer.cc b/src/asset_writer.cc index 13adc50e..7a3e9882 100644 --- a/src/asset_writer.cc +++ b/src/asset_writer.cc @@ -33,13 +33,14 @@ using namespace dcp; * @param mxf MXF that we are writing. * @param file File to write to. */ -AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file) +AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file, Standard standard) : _mxf (mxf) , _file (file) , _frames_written (0) , _finalized (false) , _started (false) , _encryption_context (0) + , _hmac_context (0) { if (mxf->key ()) { _encryption_context = new ASDCP::AESEncContext; @@ -53,12 +54,26 @@ AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file) if (ASDCP_FAILURE (_encryption_context->SetIVec (rng.FillRandom (cbc_buffer, ASDCP::CBC_BLOCK_SIZE)))) { throw MiscError ("could not set up CBC initialization vector"); } + + _hmac_context = new ASDCP::HMACContext; + + ASDCP::LabelSet_t type; + if (standard == INTEROP) { + type = ASDCP::LS_MXF_INTEROP; + } else { + type = ASDCP::LS_MXF_SMPTE; + } + + if (ASDCP_FAILURE (_hmac_context->InitKey (mxf->key()->value(), type))) { + throw MiscError ("could not set up HMAC context"); + } } } AssetWriter::~AssetWriter () { delete _encryption_context; + delete _hmac_context; } /** @return true if anything was written by this writer */ |