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