#include "asset_writer.h"
#include "mxf.h"
#include "dcp_assert.h"
-#include "AS_DCP.h"
-#include "KM_prng.h"
+#include "crypto_context.h"
+#include <asdcp/AS_DCP.h>
+#include <asdcp/KM_prng.h>
using namespace dcp;
* @param mxf MXF that we are writing.
* @param file File to write to.
*/
-AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file, Standard standard)
+AssetWriter::AssetWriter (MXF* mxf, boost::filesystem::path file)
: _mxf (mxf)
, _file (file)
, _frames_written (0)
, _finalized (false)
, _started (false)
- , _encryption_context (0)
- , _hmac_context (0)
+ , _crypto_context (new EncryptionContext (mxf->key(), mxf->standard()))
{
- if (mxf->key ()) {
- _encryption_context = new ASDCP::AESEncContext;
- if (ASDCP_FAILURE (_encryption_context->InitKey (mxf->key()->value ()))) {
- throw MiscError ("could not set up encryption context");
- }
- uint8_t cbc_buffer[ASDCP::CBC_BLOCK_SIZE];
-
- Kumu::FortunaRNG rng;
- 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 */