#include <iostream>
#include <iomanip>
#include <boost/filesystem.hpp>
+#include <boost/lexical_cast.hpp>
#include <openssl/sha.h>
+#include <libxml++/nodes/element.h>
+#include <libxml++/document.h>
+#include <xmlsec/xmldsig.h>
+#include <xmlsec/dl.h>
+#include <xmlsec/app.h>
+#include <xmlsec/crypto.h>
#include "KM_util.h"
#include "KM_fileio.h"
#include "AS_DCP.h"
#include "exceptions.h"
#include "types.h"
#include "argb_frame.h"
-#include "lut.h"
+#include "certificates.h"
+#include "gamma_lut.h"
+#include "xyz_frame.h"
-using namespace std;
-using namespace boost;
+using std::string;
+using std::cout;
+using std::stringstream;
+using std::min;
+using std::max;
+using std::list;
+using std::setw;
+using std::setfill;
+using boost::shared_ptr;
+using boost::lexical_cast;
using namespace libdcp;
+/** Create a UUID.
+ * @return UUID.
+ */
string
libdcp::make_uuid ()
{
return string (buffer);
}
+
+/** Create a digest for a file.
+ * @param filename File name.
+ * @param progress Pointer to a progress reporting function, or 0. The function will be called
+ * with a progress value between 0 and 1.
+ * @return Digest.
+ */
string
-libdcp::make_digest (string filename, sigc::signal1<void, float>* progress)
+libdcp::make_digest (string filename, boost::function<void (float)>* progress)
{
- int const file_size = filesystem::file_size (filename);
-
Kumu::FileReader reader;
if (ASDCP_FAILURE (reader.OpenRead (filename.c_str ()))) {
- throw FileError ("could not open file to compute digest", filename);
+ boost::throw_exception (FileError ("could not open file to compute digest", filename));
}
SHA_CTX sha;
SHA1_Init (&sha);
-
- Kumu::ByteString read_buffer (65536);
- int done = 0;
+
+ int const buffer_size = 65536;
+ Kumu::ByteString read_buffer (buffer_size);
+
+ Kumu::fsize_t done = 0;
+ Kumu::fsize_t const size = reader.Size ();
while (1) {
ui32_t read = 0;
Kumu::Result_t r = reader.Read (read_buffer.Data(), read_buffer.Capacity(), &read);
if (r == Kumu::RESULT_ENDOFFILE) {
break;
} else if (ASDCP_FAILURE (r)) {
- throw FileError ("could not read file to compute digest", filename);
+ boost::throw_exception (FileError ("could not read file to compute digest", filename));
}
SHA1_Update (&sha, read_buffer.Data(), read);
- done += read;
if (progress) {
- (*progress) (0.5 + (0.5 * done / file_size));
+ (*progress) (float (done) / size);
+ done += read;
}
}
- byte_t byte_buffer[20];
+ byte_t byte_buffer[SHA_DIGEST_LENGTH];
SHA1_Final (byte_buffer, &sha);
- stringstream s;
char digest[64];
- return Kumu::base64encode (byte_buffer, 20, digest, 64);
+ 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
libdcp::content_kind_to_string (ContentKind kind)
{
assert (false);
}
+/** Convert a string from a <ContentKind> node to a libdcp ContentKind.
+ * Reasonably tolerant about varying case.
+ * @param type Content kind string.
+ * @return libdcp ContentKind.
+ */
libdcp::ContentKind
libdcp::content_kind_from_string (string type)
{
+ /* XXX: should probably just convert type to lower-case and have done with it */
+
if (type == "feature") {
return FEATURE;
} else if (type == "short") {
return SHORT;
- } else if (type == "trailer") {
+ } else if (type == "trailer" || type == "Trailer") {
return TRAILER;
} else if (type == "test") {
return TEST;
return TRANSITIONAL;
} else if (type == "rating") {
return RATING;
- } else if (type == "teaser") {
+ } else if (type == "teaser" || type == "Teaser") {
return TEASER;
} else if (type == "policy") {
return POLICY;
assert (false);
}
-
-bool
-libdcp::ends_with (string big, string little)
-{
- if (little.size() > big.size()) {
- return false;
- }
- return big.compare (big.length() - little.length(), little.length(), little) == 0;
-}
-
-opj_image_t *
-libdcp::decompress_j2k (uint8_t* data, int64_t size)
+/** 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 XYZ image.
+ */
+shared_ptr<libdcp::XYZFrame>
+libdcp::decompress_j2k (uint8_t* data, int64_t size, int reduce)
{
opj_dinfo_t* decoder = opj_create_decompress (CODEC_J2K);
opj_dparameters_t parameters;
opj_set_default_decoder_parameters (¶meters);
+ parameters.cp_reduce = reduce;
opj_setup_decoder (decoder, ¶meters);
opj_cio_t* cio = opj_cio_open ((opj_common_ptr) decoder, data, size);
opj_image_t* image = opj_decode (decoder, cio);
if (!image) {
opj_destroy_decompress (decoder);
opj_cio_close (cio);
- throw DCPReadError ("could not decode JPEG2000 codestream");
+ boost::throw_exception (DCPReadError ("could not decode JPEG2000 codestream of " + lexical_cast<string> (size) + " bytes."));
}
opj_cio_close (cio);
- return image;
+
+ image->x1 = rint (float(image->x1) / pow (2, reduce));
+ image->y1 = rint (float(image->y1) / pow (2, reduce));
+ return shared_ptr<XYZFrame> (new XYZFrame (image));
}
-shared_ptr<ARGBFrame>
-libdcp::xyz_to_rgb (opj_image_t* xyz_frame)
+/** @param s A string.
+ * @return true if the string contains only space, newline or tab characters, or is empty.
+ */
+bool
+libdcp::empty_or_white_space (string s)
{
- struct {
- double x, y, z;
- } s;
-
- struct {
- double r, g, b;
- } d;
-
- int* xyz_x = xyz_frame->comps[0].data;
- int* xyz_y = xyz_frame->comps[1].data;
- int* xyz_z = xyz_frame->comps[2].data;
+ for (size_t i = 0; i < s.length(); ++i) {
+ if (s[i] != ' ' && s[i] != '\n' && s[i] != '\t') {
+ return false;
+ }
+ }
- shared_ptr<ARGBFrame> argb_frame (new ARGBFrame (xyz_frame->x1, xyz_frame->y1));
-
- uint8_t* argb = argb_frame->data ();
-
- for (int y = 0; y < xyz_frame->y1; ++y) {
- uint8_t* argb_line = argb;
- for (int x = 0; x < xyz_frame->x1; ++x) {
-
- assert (*xyz_x >= 0 && *xyz_y >= 0 && *xyz_z >= 0 && *xyz_x < 4096 && *xyz_x < 4096 && *xyz_z < 4096);
-
- /* In gamma LUT */
- s.x = lut_in[*xyz_x++];
- s.y = lut_in[*xyz_y++];
- s.z = lut_in[*xyz_z++];
-
- /* DCI companding */
- s.x /= DCI_COEFFICIENT;
- s.y /= DCI_COEFFICIENT;
- s.z /= DCI_COEFFICIENT;
-
- /* XYZ to RGB */
- d.r = ((s.x * color_matrix[0][0]) + (s.y * color_matrix[0][1]) + (s.z * color_matrix[0][2]));
- d.g = ((s.x * color_matrix[1][0]) + (s.y * color_matrix[1][1]) + (s.z * color_matrix[1][2]));
- d.b = ((s.x * color_matrix[2][0]) + (s.y * color_matrix[2][1]) + (s.z * color_matrix[2][2]));
-
- d.r = min (d.r, 1.0);
- d.r = max (d.r, 0.0);
-
- d.g = min (d.g, 1.0);
- d.g = max (d.g, 0.0);
-
- d.b = min (d.b, 1.0);
- d.b = max (d.b, 0.0);
-
- /* Out gamma LUT */
- *argb_line++ = lut_out[(int) (d.b * COLOR_DEPTH)];
- *argb_line++ = lut_out[(int) (d.g * COLOR_DEPTH)];
- *argb_line++ = lut_out[(int) (d.r * COLOR_DEPTH)];
- *argb_line++ = 0xff;
+ return true;
+}
+
+void
+libdcp::init ()
+{
+ if (xmlSecInit() < 0) {
+ throw MiscError ("could not initialise xmlsec");
+ }
+
+#ifdef XMLSEC_CRYPTO_DYNAMIC_LOADING
+ if (xmlSecCryptoDLLoadLibrary(BAD_CAST XMLSEC_CRYPTO) < 0) {
+ throw MiscError ("unable to load default xmlsec-crypto library");
+ }
+#endif
+
+ if (xmlSecCryptoAppInit(0) < 0) {
+ throw MiscError ("could not initialise crypto");
+ }
+
+ if (xmlSecCryptoInit() < 0) {
+ throw MiscError ("could not initialise xmlsec-crypto");
+ }
+}
+
+bool libdcp::operator== (libdcp::Size const & a, libdcp::Size const & b)
+{
+ return (a.width == b.width && a.height == b.height);
+}
+
+bool libdcp::operator!= (libdcp::Size const & a, libdcp::Size const & b)
+{
+ return !(a == b);
+}
+
+/** The base64 decode routine in KM_util.cpp gives different values to both
+ * this and the command-line base64 for some inputs. Not sure why.
+ */
+int
+libdcp::base64_decode (string const & in, unsigned char* out, int out_length)
+{
+ BIO* b64 = BIO_new (BIO_f_base64 ());
+
+ /* This means the input should have no newlines */
+ BIO_set_flags (b64, BIO_FLAGS_BASE64_NO_NL);
+
+ /* Copy our input string, removing newlines */
+ char in_buffer[in.size() + 1];
+ char* p = in_buffer;
+ for (size_t i = 0; i < in.size(); ++i) {
+ if (in[i] != '\n' && in[i] != '\r') {
+ *p++ = in[i];
}
+ }
- argb += argb_frame->stride ();
+ BIO* bmem = BIO_new_mem_buf (in_buffer, p - in_buffer);
+ bmem = BIO_push (b64, bmem);
+ int const N = BIO_read (bmem, out, out_length);
+ BIO_free_all (bmem);
+
+ return N;
+}
+
+string
+libdcp::tm_to_string (struct tm* tm)
+{
+ char buffer[64];
+ strftime (buffer, 64, "%Y-%m-%dT%I:%M:%S", tm);
+
+ int offset = 0;
+
+#ifdef LIBDCP_POSIX
+ offset = tm->tm_gmtoff / 60;
+#else
+ TIME_ZONE_INFORMATION tz;
+ GetTimeZoneInformation (&tz);
+ offset = tz.Bias;
+#endif
+
+ return string (buffer) + utc_offset_to_string (offset);
+}
+
+/** @param b Offset from UTC to local time in minutes.
+ * @return string of the form e.g. -01:00.
+ */
+string
+libdcp::utc_offset_to_string (int b)
+{
+ bool const negative = (b < 0);
+ b = negative ? -b : b;
+
+ int const hours = b / 60;
+ int const minutes = b % 60;
+
+ stringstream o;
+ if (negative) {
+ o << "-";
+ } else {
+ o << "+";
}
- return argb_frame;
+ o << setw(2) << setfill('0') << hours << ":" << setw(2) << setfill('0') << minutes;
+ return o.str ();
+}
+
+string
+libdcp::ptime_to_string (boost::posix_time::ptime t)
+{
+ struct tm t_tm = boost::posix_time::to_tm (t);
+ return tm_to_string (&t_tm);
}
projects / libdcp.git / blobdiff