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authorCarl Hetherington <cth@carlh.net>2013-09-25 21:31:10 +0100
committerCarl Hetherington <cth@carlh.net>2013-09-25 21:31:10 +0100
commit566608b965e8ec0e08d9de128405d22ec7fedcd6 (patch)
tree2fda53a5d6adb9427d0f1f5c1a5af050eddc44d9 /src/mono_picture_asset_writer.cc
parentf76647abae551840a43bb8f07189051ec20bab6d (diff)
Split up some files.
Diffstat (limited to 'src/mono_picture_asset_writer.cc')
-rw-r--r--src/mono_picture_asset_writer.cc105
1 files changed, 105 insertions, 0 deletions
diff --git a/src/mono_picture_asset_writer.cc b/src/mono_picture_asset_writer.cc
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+++ b/src/mono_picture_asset_writer.cc
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+/*
+ Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "AS_DCP.h"
+#include "KM_fileio.h"
+#include "mono_picture_asset_writer.h"
+#include "exceptions.h"
+#include "picture_asset.h"
+
+#include "picture_asset_writer_common.cc"
+
+using std::istream;
+using std::ostream;
+using std::string;
+using boost::shared_ptr;
+using namespace libdcp;
+
+struct MonoPictureAssetWriter::ASDCPState : public ASDCPStateBase
+{
+ ASDCP::JP2K::MXFWriter mxf_writer;
+};
+
+/** @param a Asset to write to. `a' must not be deleted while
+ * this writer class still exists, or bad things will happen.
+ */
+MonoPictureAssetWriter::MonoPictureAssetWriter (PictureAsset* asset, bool overwrite)
+ : PictureAssetWriter (asset, overwrite)
+ , _state (new MonoPictureAssetWriter::ASDCPState)
+{
+ _state->encryption_context = asset->encryption_context ();
+}
+
+void
+MonoPictureAssetWriter::start (uint8_t* data, int size)
+{
+ libdcp::start (this, _state, _asset, data, size);
+}
+
+FrameInfo
+MonoPictureAssetWriter::write (uint8_t* data, int size)
+{
+ assert (!_finalized);
+
+ if (!_started) {
+ start (data, size);
+ }
+
+ if (ASDCP_FAILURE (_state->j2k_parser.OpenReadFrame (data, size, _state->frame_buffer))) {
+ boost::throw_exception (MiscError ("could not parse J2K frame"));
+ }
+
+ uint64_t const before_offset = _state->mxf_writer.Tell ();
+
+ string hash;
+ if (ASDCP_FAILURE (_state->mxf_writer.WriteFrame (_state->frame_buffer, _state->encryption_context, 0, &hash))) {
+ boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string()));
+ }
+
+ ++_frames_written;
+ return FrameInfo (before_offset, _state->mxf_writer.Tell() - before_offset, hash);
+}
+
+void
+MonoPictureAssetWriter::fake_write (int size)
+{
+ assert (_started);
+ assert (!_finalized);
+
+ if (ASDCP_FAILURE (_state->mxf_writer.FakeWriteFrame (size))) {
+ boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string()));
+ }
+
+ ++_frames_written;
+}
+
+void
+MonoPictureAssetWriter::finalize ()
+{
+ assert (!_finalized);
+
+ if (ASDCP_FAILURE (_state->mxf_writer.Finalize())) {
+ boost::throw_exception (MXFFileError ("error in finalizing video MXF", _asset->path().string()));
+ }
+
+ _finalized = true;
+ _asset->set_intrinsic_duration (_frames_written);
+ _asset->set_duration (_frames_written);
+}
+