/*
Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of libdcp.
+
+ libdcp 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,
+ libdcp 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.
-
+ along with libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
*/
/** @file src/util.cc
#include "openjpeg_image.h"
#include "dcp_assert.h"
#include "compose.hpp"
-#include "KM_util.h"
-#include "KM_fileio.h"
-#include "AS_DCP.h"
#include <openjpeg.h>
+#include <asdcp/KM_util.h>
+#include <asdcp/KM_fileio.h>
+#include <asdcp/AS_DCP.h>
#include <xmlsec/xmldsig.h>
#include <xmlsec/dl.h>
#include <xmlsec/app.h>
#include <openssl/sha.h>
#include <boost/filesystem.hpp>
#include <boost/algorithm/string.hpp>
+#include <boost/foreach.hpp>
#include <stdexcept>
-#include <sstream>
#include <iostream>
#include <iomanip>
using std::string;
using std::wstring;
using std::cout;
-using std::stringstream;
using std::min;
using std::max;
using std::list;
return string (buffer);
}
+string
+dcp::make_digest (Data data)
+{
+ SHA_CTX sha;
+ SHA1_Init (&sha);
+ SHA1_Update (&sha, data.data().get(), data.size());
+ byte_t byte_buffer[SHA_DIGEST_LENGTH];
+ SHA1_Final (byte_buffer, &sha);
+ char digest[64];
+ return Kumu::base64encode (byte_buffer, SHA_DIGEST_LENGTH, digest, 64);
+}
/** Create a digest for a file.
* @param filename File name.
return Kumu::base64encode (byte_buffer, SHA_DIGEST_LENGTH, digest, 64);
}
-/** Convert a content kind to a string which can be used in a
- * <ContentKind> node.
- * @param kind ContentKind.
- * @return string.
- */
-string
-dcp::content_kind_to_string (ContentKind kind)
-{
- switch (kind) {
- case FEATURE:
- return "feature";
- case SHORT:
- return "short";
- case TRAILER:
- return "trailer";
- case TEST:
- return "test";
- case TRANSITIONAL:
- return "transitional";
- case RATING:
- return "rating";
- case TEASER:
- return "teaser";
- case POLICY:
- return "policy";
- case PUBLIC_SERVICE_ANNOUNCEMENT:
- return "psa";
- case ADVERTISEMENT:
- return "advertisement";
- }
-
- DCP_ASSERT (false);
-}
-
-/** Convert a string from a <ContentKind> node to a libdcp ContentKind.
- * Reasonably tolerant about varying case.
- * @param kind Content kind string.
- * @return libdcp ContentKind.
- */
-dcp::ContentKind
-dcp::content_kind_from_string (string kind)
-{
- transform (kind.begin(), kind.end(), kind.begin(), ::tolower);
-
- if (kind == "feature") {
- return FEATURE;
- } else if (kind == "short") {
- return SHORT;
- } else if (kind == "trailer") {
- return TRAILER;
- } else if (kind == "test") {
- return TEST;
- } else if (kind == "transitional") {
- return TRANSITIONAL;
- } else if (kind == "rating") {
- return RATING;
- } else if (kind == "teaser") {
- return TEASER;
- } else if (kind == "policy") {
- return POLICY;
- } else if (kind == "psa") {
- return PUBLIC_SERVICE_ANNOUNCEMENT;
- } else if (kind == "advertisement") {
- return ADVERTISEMENT;
- }
-
- DCP_ASSERT (false);
-}
-
-shared_ptr<dcp::OpenJPEGImage>
-dcp::decompress_j2k (Data data, int reduce)
-{
- return dcp::decompress_j2k (data.data.get(), data.size, reduce);
-}
-
-class ReadBuffer
-{
-public:
- ReadBuffer (uint8_t* data, int64_t size)
- : _data (data)
- , _size (size)
- , _offset (0)
- {}
-
- OPJ_SIZE_T read (void* buffer, OPJ_SIZE_T nb_bytes)
- {
- int64_t N = min (nb_bytes, _size - _offset);
- memcpy (buffer, _data + _offset, N);
- _offset += N;
- return N;
- }
-
-private:
- uint8_t* _data;
- OPJ_SIZE_T _size;
- OPJ_SIZE_T _offset;
-};
-
-static OPJ_SIZE_T
-read_function (void* buffer, OPJ_SIZE_T nb_bytes, void* data)
-{
- return reinterpret_cast<ReadBuffer*>(data)->read (buffer, nb_bytes);
-}
-
-static void
-read_free_function (void* data)
-{
- delete reinterpret_cast<ReadBuffer*>(data);
-}
-
-/** Decompress a JPEG2000 image to a bitmap.
- * @param data JPEG2000 data.
- * @param size Size of data in bytes.
- * @param reduce A power of 2 by which to reduce the size of the decoded image;
- * e.g. 0 reduces by (2^0 == 1), ie keeping the same size.
- * 1 reduces by (2^1 == 2), ie halving the size of the image.
- * This is useful for scaling 4K DCP images down to 2K.
- * @return OpenJPEGImage.
- */
-shared_ptr<dcp::OpenJPEGImage>
-dcp::decompress_j2k (uint8_t* data, int64_t size, int reduce)
-{
- uint8_t const jp2_magic[] = {
- 0x00,
- 0x00,
- 0x00,
- 0x0c,
- 'j',
- 'P',
- 0x20,
- 0x20
- };
-
- OPJ_CODEC_FORMAT format = OPJ_CODEC_J2K;
- if (size >= int (sizeof (jp2_magic)) && memcmp (data, jp2_magic, sizeof (jp2_magic)) == 0) {
- format = OPJ_CODEC_JP2;
- }
-
- opj_codec_t* decoder = opj_create_decompress (format);
- if (!decoder) {
- boost::throw_exception (DCPReadError ("could not create JPEG2000 decompresser"));
- }
- opj_dparameters_t parameters;
- opj_set_default_decoder_parameters (¶meters);
- parameters.cp_reduce = reduce;
- opj_setup_decoder (decoder, ¶meters);
-
- opj_stream_t* stream = opj_stream_default_create (OPJ_TRUE);
- if (!stream) {
- throw MiscError ("could not create JPEG2000 stream");
- }
-
- opj_stream_set_read_function (stream, read_function);
- ReadBuffer* buffer = new ReadBuffer (data, size);
- opj_stream_set_user_data (stream, buffer, read_free_function);
- opj_stream_set_user_data_length (stream, size);
-
- opj_image_t* image = 0;
- opj_read_header (stream, decoder, &image);
- if (opj_decode (decoder, stream, image) == OPJ_FALSE) {
- opj_destroy_codec (decoder);
- opj_stream_destroy (stream);
- if (format == OPJ_CODEC_J2K) {
- boost::throw_exception (DCPReadError (String::compose ("could not decode JPEG2000 codestream of %1 bytes.", size)));
- } else {
- boost::throw_exception (DCPReadError (String::compose ("could not decode JP2 file of %1 bytes.", size)));
- }
- }
-
- opj_destroy_codec (decoder);
- opj_stream_destroy (stream);
-
- image->x1 = rint (float(image->x1) / pow (2, reduce));
- image->y1 = rint (float(image->y1) / pow (2, reduce));
- return shared_ptr<OpenJPEGImage> (new OpenJPEGImage (image));
-}
-
-class WriteBuffer
-{
-public:
-/* XXX: is there a better strategy for this? */
-#define MAX_J2K_SIZE (1024 * 1024 * 2)
- WriteBuffer ()
- : _data (shared_array<uint8_t> (new uint8_t[MAX_J2K_SIZE]), MAX_J2K_SIZE)
- , _offset (0)
- {}
-
- OPJ_SIZE_T write (void* buffer, OPJ_SIZE_T nb_bytes)
- {
- DCP_ASSERT ((_offset + nb_bytes) < MAX_J2K_SIZE);
- memcpy (_data.data.get() + _offset, buffer, nb_bytes);
- _offset += nb_bytes;
- return nb_bytes;
- }
-
- Data data () const {
- return _data;
- }
-
-private:
- Data _data;
- OPJ_SIZE_T _offset;
-};
-
-static OPJ_SIZE_T
-write_function (void* buffer, OPJ_SIZE_T nb_bytes, void* data)
-{
- return reinterpret_cast<WriteBuffer*>(data)->write (buffer, nb_bytes);
-}
-
-static void
-write_free_function (void* data)
-{
- delete reinterpret_cast<WriteBuffer*>(data);
-}
-
-Data
-dcp::compress_j2k (shared_ptr<const OpenJPEGImage> xyz, int bandwidth, int frames_per_second, bool threed, bool fourk)
-{
- /* XXX: should probably use opj_set_*_handler */
-
- /* Set the max image and component sizes based on frame_rate */
- int max_cs_len = ((float) bandwidth) / 8 / frames_per_second;
- if (threed) {
- /* In 3D we have only half the normal bandwidth per eye */
- max_cs_len /= 2;
- }
- int const max_comp_size = max_cs_len / 1.25;
-
- /* get a J2K compressor handle */
- opj_codec_t* encoder = opj_create_compress (OPJ_CODEC_J2K);
- if (encoder == 0) {
- throw MiscError ("could not create JPEG2000 encoder");
- }
-
- /* Set encoding parameters to default values */
- opj_cparameters_t parameters;
- opj_set_default_encoder_parameters (¶meters);
-
- /* Set default cinema parameters */
- parameters.tile_size_on = OPJ_FALSE;
- parameters.cp_tdx = 1;
- parameters.cp_tdy = 1;
-
- /* Tile part */
- parameters.tp_flag = 'C';
- parameters.tp_on = 1;
-
- /* Tile and Image shall be at (0,0) */
- parameters.cp_tx0 = 0;
- parameters.cp_ty0 = 0;
- parameters.image_offset_x0 = 0;
- parameters.image_offset_y0 = 0;
-
- /* Codeblock size = 32x32 */
- parameters.cblockw_init = 32;
- parameters.cblockh_init = 32;
- parameters.csty |= 0x01;
-
- /* The progression order shall be CPRL */
- parameters.prog_order = OPJ_CPRL;
-
- /* No ROI */
- parameters.roi_compno = -1;
-
- parameters.subsampling_dx = 1;
- parameters.subsampling_dy = 1;
-
- /* 9-7 transform */
- parameters.irreversible = 1;
-
- parameters.tcp_rates[0] = 0;
- parameters.tcp_numlayers++;
- parameters.cp_disto_alloc = 1;
- parameters.cp_rsiz = fourk ? OPJ_CINEMA4K : OPJ_CINEMA2K;
- if (fourk) {
- parameters.numpocs = 2;
- parameters.POC[0].tile = 1;
- parameters.POC[0].resno0 = 0;
- parameters.POC[0].compno0 = 0;
- parameters.POC[0].layno1 = 1;
- parameters.POC[0].resno1 = parameters.numresolution - 1;
- parameters.POC[0].compno1 = 3;
- parameters.POC[0].prg1 = OPJ_CPRL;
- parameters.POC[1].tile = 1;
- parameters.POC[1].resno0 = parameters.numresolution - 1;
- parameters.POC[1].compno0 = 0;
- parameters.POC[1].layno1 = 1;
- parameters.POC[1].resno1 = parameters.numresolution;
- parameters.POC[1].compno1 = 3;
- parameters.POC[1].prg1 = OPJ_CPRL;
- }
-
- parameters.cp_comment = strdup ("libdcp");
- parameters.cp_cinema = fourk ? OPJ_CINEMA4K_24 : OPJ_CINEMA2K_24;
-
- /* 3 components, so use MCT */
- parameters.tcp_mct = 1;
-
- /* set max image */
- parameters.max_comp_size = max_comp_size;
- parameters.tcp_rates[0] = ((float) (3 * xyz->size().width * xyz->size().height * 12)) / (max_cs_len * 8);
-
- /* Setup the encoder parameters using the current image and user parameters */
- opj_setup_encoder (encoder, ¶meters, xyz->opj_image());
-
- opj_stream_t* stream = opj_stream_default_create (OPJ_FALSE);
- if (!stream) {
- throw MiscError ("could not create JPEG2000 stream");
- }
-
- opj_stream_set_write_function (stream, write_function);
- WriteBuffer* buffer = new WriteBuffer ();
- opj_stream_set_user_data (stream, buffer, write_free_function);
-
- if (!opj_start_compress (encoder, xyz->opj_image(), stream)) {
- throw MiscError ("could not start JPEG2000 encoding");
- }
-
- if (!opj_encode (encoder, stream)) {
- opj_destroy_codec (encoder);
- opj_stream_destroy (stream);
- throw MiscError ("JPEG2000 encoding failed");
- }
-
- if (!opj_end_compress (encoder, stream)) {
- throw MiscError ("could not end JPEG2000 encoding");
- }
-
- Data enc (buffer->data ());
-
- free (parameters.cp_comment);
- opj_destroy_codec (encoder);
- opj_stream_destroy (stream);
-
- return enc;
-}
-
/** @param s A string.
* @return true if the string contains only space, newline or tab characters, or is empty.
*/
#ifdef XMLSEC_CRYPTO_DYNAMIC_LOADING
if (xmlSecCryptoDLLoadLibrary(BAD_CAST XMLSEC_CRYPTO) < 0) {
- throw MiscError ("unable to load default xmlsec-crypto library");
+ throw MiscError (String::compose("unable to load default xmlsec-crypto library '%1'", reinterpret_cast<const char*>((XMLSEC_CRYPTO))));
}
#endif
if (xmlSecCryptoInit() < 0) {
throw MiscError ("could not initialise xmlsec-crypto");
}
-}
-bool dcp::operator== (dcp::Size const & a, dcp::Size const & b)
-{
- return (a.width == b.width && a.height == b.height);
-}
-
-bool dcp::operator!= (dcp::Size const & a, dcp::Size const & b)
-{
- return !(a == b);
-}
-
-ostream& dcp::operator<< (ostream& s, dcp::Size const & a)
-{
- s << a.width << "x" << a.height;
- return s;
+ OpenSSL_add_all_algorithms();
}
/** Decode a base64 string. The base64 decode routine in KM_util.cpp
{
uintmax_t len = boost::filesystem::file_size (p);
if (len > max_length) {
- throw MiscError ("Unexpectedly long file");
+ throw MiscError (String::compose ("Unexpectedly long file (%1)", p.string()));
}
FILE* f = fopen_boost (p, "r");
DCP_ASSERT (i != c.end ());
return *i;
}
+
+string
+dcp::remove_urn_uuid (string raw)
+{
+ DCP_ASSERT (raw.substr(0, 9) == "urn:uuid:");
+ return raw.substr (9);
+}
+
+string
+dcp::openjpeg_version ()
+{
+ return opj_version ();
+}
+
+string
+dcp::spaces (int n)
+{
+ string s = "";
+ for (int i = 0; i < n; ++i) {
+ s += " ";
+ }
+ return s;
+}
+
+void
+dcp::indent (xmlpp::Element* element, int initial)
+{
+ xmlpp::Node* last = 0;
+ BOOST_FOREACH (xmlpp::Node * n, element->get_children()) {
+ xmlpp::Element* e = dynamic_cast<xmlpp::Element*>(n);
+ if (e) {
+ element->add_child_text_before (e, "\n" + spaces(initial + 2));
+ indent (e, initial + 2);
+ last = n;
+ }
+ }
+ if (last) {
+ element->add_child_text (last, "\n" + spaces(initial));
+ }
+}
+
+/** @return true if the day represented by \ref a is less than or
+ * equal to the one represented by \ref b, ignoring the time parts.
+ */
+bool
+dcp::day_less_than_or_equal (LocalTime a, LocalTime b)
+{
+ if (a.year() != b.year()) {
+ return a.year() < b.year();
+ }
+
+ if (a.month() != b.month()) {
+ return a.month() < b.month();
+ }
+
+ return a.day() <= b.day();
+}
+
+/** @return true if the day represented by \ref a is greater than or
+ * equal to the one represented by \ref b, ignoring the time parts.
+ */
+bool
+dcp::day_greater_than_or_equal (LocalTime a, LocalTime b)
+{
+ if (a.year() != b.year()) {
+ return a.year() > b.year();
+ }
+
+ if (a.month() != b.month()) {
+ return a.month() > b.month();
+ }
+
+ return a.day() >= b.day();
+}
+
+/** Try quite hard to find a string which starts with \ref base and is
+ * not in \ref existing.
+ */
+string
+dcp::unique_string (list<string> existing, string base)
+{
+ int const max_tries = existing.size() + 1;
+ for (int i = 0; i < max_tries; ++i) {
+ string trial = String::compose("%1%2", base, i);
+ if (find(existing.begin(), existing.end(), trial) == existing.end()) {
+ return trial;
+ }
+ }
+
+ DCP_ASSERT (false);
+}
projects / libdcp.git / blobdiff