gtk2_ardour/utils_videotl.cc

   1 /*
   2     Copyright (C) 2010-2013 Paul Davis
   3     Author: Robin Gareus <robin@gareus.org>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20 #ifdef WITH_VIDEOTIMELINE
  21
  22 #include <cstdio>
  23 #include <string>
  24 #include <cerrno>
  25 #include <gtkmm.h>
  26 #include <curl/curl.h>
  27
  28 #include "pbd/error.h"
  29 #include "ardour/ardour.h"
  30 #include "ardour/session_directory.h"
  31 #include "video_image_frame.h"
  32 #include "utils_videotl.h"
  33
  34 #include "i18n.h"
  35
  36 using namespace Gtk;
  37 using namespace std;
  38 using namespace PBD;
  39 using namespace ARDOUR;
  40
  41 bool
  42 confirm_video_outfn (std::string outfn, std::string docroot)
  43 {
  44         /* replace docroot's '/' to G_DIR_SEPARATOR for the comparison */
  45         size_t look_here = 0;
  46         size_t found_here;
  47         const char ds = G_DIR_SEPARATOR;
  48         while((found_here = docroot.find('/', look_here)) != string::npos) {
  49                 docroot.replace(found_here, 1, std::string(&ds, 1));
  50                 look_here = found_here + 1;
  51         }
  52
  53         if (!docroot.empty() && docroot.compare(0, docroot.length(), outfn, 0, docroot.length())) {
  54                 ArdourDialog confirm (_("Destination is outside Video Server's docroot. "), true);
  55                 Label m (_("The destination file path is outside of the Video Server's docroot. The file will not be readable by the Video Server. Do you still want to continue?"));
  56                 confirm.get_vbox()->pack_start (m, true, true);
  57                 confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
  58                 confirm.add_button (_("Continue"), Gtk::RESPONSE_ACCEPT);
  59                 confirm.show_all ();
  60                 if (confirm.run() == RESPONSE_CANCEL) { return false; }
  61         }
  62
  63         if (Glib::file_test(outfn, Glib::FILE_TEST_EXISTS)) {
  64                 ArdourDialog confirm (_("Confirm Overwrite"), true);
  65                 Label m (_("A file with the same name already exists.  Do you want to overwrite it?"));
  66                 confirm.get_vbox()->pack_start (m, true, true);
  67                 confirm.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
  68                 confirm.add_button (_("Overwrite"), Gtk::RESPONSE_ACCEPT);
  69                 confirm.show_all ();
  70                 if (confirm.run() == RESPONSE_CANCEL) { return false; }
  71         }
  72
  73         std::string dir = Glib::path_get_dirname (outfn);
  74         if (g_mkdir_with_parents (dir.c_str(), 0755) < 0) {
  75                 error << string_compose(_("Cannot create video folder \"%1\" (%2)"), dir, strerror (errno)) << endmsg;
  76                 return false;
  77         }
  78         return true;
  79 }
  80
  81 std::string
  82 video_dest_dir (const std::string sessiondir, const std::string docroot)
  83 {
  84         std::string dir = docroot;
  85         if (dir.empty() || !dir.compare(0, dir.length(), sessiondir, 0, dir.length())) {
  86                 dir=sessiondir;
  87         }
  88         if ((dir.empty() || dir.at(dir.length()-1) != G_DIR_SEPARATOR)) { dir += G_DIR_SEPARATOR; }
  89
  90         if (g_mkdir_with_parents (dir.c_str(), 0755) < 0) {
  91                 error << string_compose(_("Cannot create video folder \"%1\" (%2)"), dir, strerror (errno)) << endmsg;
  92         }
  93         return dir;
  94 }
  95
  96 std::string
  97 video_get_docroot (ARDOUR::RCConfiguration* config)
  98 {
  99         if (config->get_video_advanced_setup()) {
 100                 return config->get_video_server_docroot();
 101         }
 102         return X_("/");
 103 }
 104
 105 std::string
 106 video_get_server_url (ARDOUR::RCConfiguration* config)
 107 {
 108         if (config->get_video_advanced_setup()) {
 109                 return config->get_video_server_url();
 110         }
 111         return X_("http://localhost:1554");
 112 }
 113
 114
 115 std::string
 116 strip_file_extension (const std::string infile)
 117 {
 118         std::string rv;
 119         char *ext, *bn = strdup(infile.c_str());
 120         if ((ext=strrchr(bn, '.'))) {
 121                 if (!strchr(ext, G_DIR_SEPARATOR)) {
 122                         *ext = 0;
 123                 }
 124         }
 125         rv = std::string(bn);
 126         free(bn);
 127         return rv;
 128 }
 129
 130 std::string
 131 get_file_extension (const std::string infile)
 132 {
 133         std::string rv = "";
 134         char *ext, *bn = strdup(infile.c_str());
 135         if ((ext=strrchr(bn, '.'))) {
 136                 if (!strchr(ext, G_DIR_SEPARATOR)) {
 137                         rv=std::string(ext+1);
 138                 }
 139         }
 140         free(bn);
 141         return rv;
 142 }
 143
 144 std::string
 145 video_dest_file (const std::string dir, const std::string infile)
 146 {
 147         return dir + "a3_" + strip_file_extension(Glib::path_get_basename(infile)) + ".avi";
 148 }
 149
 150 std::string
 151 video_map_path (std::string server_docroot, std::string filepath)
 152 {
 153         std::string rv = filepath;
 154
 155         /* replace all G_DIR_SEPARATOR with '/' */
 156         size_t look_here = 0;
 157         size_t found_here;
 158         while((found_here = rv.find(G_DIR_SEPARATOR, look_here)) != string::npos) {
 159                 rv.replace(found_here, 1, "/");
 160                 look_here = found_here + 1;
 161         }
 162
 163         /* strip docroot */
 164         if (server_docroot.length() > 0) {
 165                 if (rv.compare(0, server_docroot.length(), server_docroot) == 0 ) {
 166                         rv = rv.substr(server_docroot.length());
 167                 }
 168         }
 169
 170         CURL *curl;
 171         char *ue;
 172         curl = curl_easy_init();
 173         ue = curl_easy_escape(curl, rv.c_str(),rv.length());
 174         if (ue) {
 175                 rv = std::string(ue);
 176                 curl_free(ue);
 177         }
 178         curl_easy_cleanup(curl);
 179
 180         return rv;
 181 }
 182
 183 void
 184 ParseCSV (const std::string &csv, std::vector<std::vector<std::string> > &lines)
 185 {
 186         bool inQuote(false);
 187         bool newLine(false);
 188         std::string field;
 189         lines.clear();
 190         std::vector<std::string> line;
 191
 192         std::string::const_iterator aChar = csv.begin();
 193         while (aChar != csv.end()) {
 194                 switch (*aChar) {
 195                 case '"':
 196                  newLine = false;
 197                  inQuote = !inQuote;
 198                  break;
 199
 200                 case ',':
 201                  newLine = false;
 202                  if (inQuote == true) {
 203                                 field += *aChar;
 204                  } else {
 205                                 line.push_back(field);
 206                                 field.clear();
 207                  }
 208                  break;
 209
 210                 case '\n':
 211                 case '\r':
 212                  if (inQuote == true) {
 213                                 field += *aChar;
 214                  } else {
 215                                 if (newLine == false) {
 216                                          line.push_back(field);
 217                                          lines.push_back(line);
 218                                          field.clear();
 219                                          line.clear();
 220                                          newLine = true;
 221                                 }
 222                  }
 223                  break;
 224
 225                 default:
 226                          newLine = false;
 227                          field.push_back(*aChar);
 228                          break;
 229                 }
 230                 aChar++;
 231         }
 232
 233          if (field.size())
 234                 line.push_back(field);
 235
 236          if (line.size())
 237                 lines.push_back(line);
 238 }
 239
 240 bool
 241 video_query_info (
 242                 std::string video_server_url,
 243                 std::string filepath,
 244                 double &video_file_fps,
 245                 long long int &video_duration,
 246                 double &video_start_offset,
 247                 double &video_aspect_ratio
 248                 )
 249 {
 250         char url[2048];
 251
 252         snprintf(url, sizeof(url), "%s%sinfo/?file=%s&format=plain"
 253                         , video_server_url.c_str()
 254                         , (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/"
 255                         , filepath.c_str());
 256         char *res = curl_http_get(url, NULL);
 257         int pid=0;
 258         if (res) {
 259                 char *pch, *pst;
 260                 int version;
 261                 pch = strtok_r(res, "\n", &pst);
 262                 while (pch) {
 263 #if 0 /* DEBUG */
 264                         printf("VideoFileInfo [%i] -> '%s'\n", pid, pch);
 265 #endif
 266                         switch (pid) {
 267                                 case 0:
 268                                   version = atoi(pch);
 269                                         if (version != 1) break;
 270                                 case 1:
 271                                   video_file_fps = atof(pch);
 272                                         break;
 273                                 case 2:
 274                                         video_duration = atoll(pch);
 275                                         break;
 276                                 case 3:
 277                                         video_start_offset = atof(pch);
 278                                         break;
 279                                 case 4:
 280                                         video_aspect_ratio = atof(pch);
 281                                         break;
 282                                 default:
 283                                         break;
 284                         }
 285                         pch = strtok_r(NULL,"\n", &pst);
 286                         ++pid;
 287                 }
 288           free(res);
 289         }
 290         if (pid!=5) {
 291                 return false;
 292         }
 293         return true;
 294 }
 295
 296 void
 297 video_draw_cross (Glib::RefPtr<Gdk::Pixbuf> img)
 298 {
 299
 300         int rowstride = img->get_rowstride();
 301         int n_channels = img->get_n_channels();
 302         guchar *pixels, *p;
 303         pixels = img->get_pixels();
 304
 305         int x,y;
 306         int clip_width = img->get_width();
 307         int clip_height = img->get_height();
 308
 309         for (x=0;x<clip_width;x++) {
 310                 y = clip_height * x / clip_width;
 311                 p = pixels + y * rowstride + x * n_channels;
 312                 p[0] = 192; p[1] = 192; p[2] = 192;
 313                 if (n_channels>3) p[3] = 255;
 314                 p = pixels + y * rowstride + (clip_width-x-1) * n_channels;
 315                 p[0] = 192; p[1] = 192; p[2] = 192;
 316                 if (n_channels>3) p[3] = 255;
 317         }
 318 }
 319
 320 #endif /* WITH_VIDEOTIMELINE */