X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=gtk2_ardour%2Fsfdb_freesound_mootcher.cc;h=51c195657b26dbc4914c2ea0b19e1e020d2bb678;hb=e544934780ac4e3afd5878f3cc02e4acacedbd67;hp=e1501460cadd682e0c762c58d1cc78b0b29c7a72;hpb=97c68cc2b1f302521244e139a8a49019702038e7;p=ardour.git diff --git a/gtk2_ardour/sfdb_freesound_mootcher.cc b/gtk2_ardour/sfdb_freesound_mootcher.cc index e1501460ca..51c195657b 100644 --- a/gtk2_ardour/sfdb_freesound_mootcher.cc +++ b/gtk2_ardour/sfdb_freesound_mootcher.cc @@ -1,464 +1,462 @@ -/* sfdb_freesound_mootcher.cpp ********************************************************************** - - Adapted for Ardour by Ben Loftis, March 2008 - Updated to new Freesound API by Colin Fletcher, November 2011 - - Mootcher 23-8-2005 - - Mootcher Online Access to thefreesoundproject website - http://freesound.iua.upf.edu/ - - GPL 2005 Jorn Lemon - mail for questions/remarks: mootcher@twistedlemon.nl - or go to the freesound website forum - - ----------------------------------------------------------------- - - Includes: - curl.h (version 7.14.0) - Librarys: - libcurl.lib - - ----------------------------------------------------------------- - Licence GPL: - - 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - - -*************************************************************************************/ -#include "sfdb_freesound_mootcher.h" - -#include "pbd/xml++.h" -#include "pbd/error.h" - -#include -#include -#include - -#include -#include - -#include "i18n.h" - -#include "ardour/audio_library.h" -#include "ardour/rc_configuration.h" -#include "pbd/pthread_utils.h" -#include "gui_thread.h" - -using namespace PBD; - -static const std::string base_url = "http://www.freesound.org/api"; -static const std::string api_key = "9d77cb8d841b4bcfa960e1aae62224eb"; // ardour3 - -//------------------------------------------------------------------------ -Mootcher::Mootcher() - : curl(curl_easy_init()) -{ - cancel_download_btn.set_label (_("Cancel")); - progress_hbox.pack_start (progress_bar, true, true); - progress_hbox.pack_end (cancel_download_btn, false, false); - progress_bar.show(); - cancel_download_btn.show(); - cancel_download_btn.signal_clicked().connect(sigc::mem_fun (*this, &Mootcher::cancelDownload)); -}; -//------------------------------------------------------------------------ -Mootcher:: ~Mootcher() -{ - curl_easy_cleanup(curl); -} - -//------------------------------------------------------------------------ - -void Mootcher::ensureWorkingDir () -{ - std::string p = ARDOUR::Config->get_freesound_download_dir(); - - if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) { - if (g_mkdir_with_parents (p.c_str(), 0775) != 0) { - PBD::error << "Unable to create Mootcher working dir" << endmsg; - } - } - basePath = p; -#ifdef PLATFORM_WINDOWS - std::string replace = "/"; - size_t pos = basePath.find("\\"); - while( pos != std::string::npos ){ - basePath.replace(pos, 1, replace); - pos = basePath.find("\\"); - } -#endif -} - - -//------------------------------------------------------------------------ -size_t Mootcher::WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data) -{ - register int realsize = (int)(size * nmemb); - struct MemoryStruct *mem = (struct MemoryStruct *)data; - - mem->memory = (char *)realloc(mem->memory, mem->size + realsize + 1); - - if (mem->memory) { - memcpy(&(mem->memory[mem->size]), ptr, realsize); - mem->size += realsize; - mem->memory[mem->size] = 0; - } - return realsize; -} - - -//------------------------------------------------------------------------ - -std::string Mootcher::sortMethodString(enum sortMethod sort) -{ -// given a sort type, returns the string value to be passed to the API to -// sort the results in the requested way. - - switch (sort) { - case sort_duration_desc: return "duration_desc"; - case sort_duration_asc: return "duration_asc"; - case sort_created_desc: return "created_desc"; - case sort_created_asc: return "created_asc"; - case sort_downloads_desc: return "downloads_desc"; - case sort_downloads_asc: return "downloads_asc"; - case sort_rating_desc: return "rating_desc"; - case sort_rating_asc: return "rating_asc"; - default: return ""; - } -} - -//------------------------------------------------------------------------ -void Mootcher::setcUrlOptions() -{ - // basic init for curl - curl_global_init(CURL_GLOBAL_ALL); - // some servers don't like requests that are made without a user-agent field, so we provide one - curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0"); - // setup curl error buffer - curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorBuffer); - // Allow redirection - curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1); - - // Allow connections to time out (without using signals) - curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); - curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 30); - - -} - -std::string Mootcher::doRequest(std::string uri, std::string params) -{ - std::string result; - struct MemoryStruct xml_page; - xml_page.memory = NULL; - xml_page.size = 0; - - setcUrlOptions(); - curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); - curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *) &xml_page); - - // curl_easy_setopt(curl, CURLOPT_HTTPGET, 1); - // curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postMessage.c_str()); - // curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, -1); - - // the url to get - std::string url = base_url + uri + "?"; - if (params != "") { - url += params + "&api_key=" + api_key + "&format=xml"; - } else { - url += "api_key=" + api_key + "&format=xml"; - } - - curl_easy_setopt(curl, CURLOPT_URL, url.c_str() ); - - // perform online request - CURLcode res = curl_easy_perform(curl); - if( res != 0 ) { - error << string_compose (_("curl error %1 (%2)"), res, curl_easy_strerror(res)) << endmsg; - return ""; - } - - // free the memory - if (xml_page.memory) { - result = xml_page.memory; - } - - free (xml_page.memory); - xml_page.memory = NULL; - xml_page.size = 0; - - return result; -} - - -std::string Mootcher::searchSimilar(std::string id) -{ - std::string params = ""; - - params += "&fields=id,original_filename,duration,filesize,samplerate,license,serve"; - params += "&num_results=100"; - - return doRequest("/sounds/" + id + "/similar", params); -} - -//------------------------------------------------------------------------ - -std::string Mootcher::searchText(std::string query, int page, std::string filter, enum sortMethod sort) -{ - std::string params = ""; - char buf[24]; - - if (page > 1) { - snprintf(buf, 23, "p=%d&", page); - params += buf; - } - - char *eq = curl_easy_escape(curl, query.c_str(), query.length()); - params += "q=\"" + std::string(eq) + "\""; - free(eq); - - if (filter != "") { - char *ef = curl_easy_escape(curl, filter.c_str(), filter.length()); - params += "&f=" + std::string(ef); - free(ef); - } - - if (sort) - params += "&s=" + sortMethodString(sort); - - params += "&fields=id,original_filename,duration,filesize,samplerate,license,serve"; - params += "&sounds_per_page=100"; - - return doRequest("/sounds/search", params); -} - -//------------------------------------------------------------------------ - -std::string Mootcher::getSoundResourceFile(std::string ID) -{ - - std::string originalSoundURI; - std::string audioFileName; - std::string xml; - - - // download the xmlfile into xml_page - xml = doRequest("/sounds/" + ID, ""); - - XMLTree doc; - doc.read_buffer( xml.c_str() ); - XMLNode *freesound = doc.root(); - - // if the page is not a valid xml document with a 'freesound' root - if (freesound == NULL) { - error << _("getSoundResourceFile: There is no valid root in the xml file") << endmsg; - return ""; - } - - if (strcmp(doc.root()->name().c_str(), "response") != 0) { - error << string_compose (_("getSoundResourceFile: root = %1, != response"), doc.root()->name()) << endmsg; - return ""; - } - - XMLNode *name = freesound->child("original_filename"); - - // get the file name and size from xml file - if (name) { - - audioFileName = Glib::build_filename (basePath, ID + "-" + name->child("text")->content()); - - //store all the tags in the database - XMLNode *tags = freesound->child("tags"); - if (tags) { - XMLNodeList children = tags->children(); - XMLNodeConstIterator niter; - std::vector strings; - for (niter = children.begin(); niter != children.end(); ++niter) { - XMLNode *node = *niter; - if( strcmp( node->name().c_str(), "resource") == 0 ) { - XMLNode *text = node->child("text"); - if (text) { - // std::cerr << "tag: " << text->content() << std::endl; - strings.push_back(text->content()); - } - } - } - ARDOUR::Library->set_tags (std::string("//")+audioFileName, strings); - ARDOUR::Library->save_changes (); - } - } - - return audioFileName; -} - -int audioFileWrite(void *buffer, size_t size, size_t nmemb, void *file) -{ - return (int)fwrite(buffer, size, nmemb, (FILE*) file); -}; - -//------------------------------------------------------------------------ - -void * -Mootcher::threadFunc() { -CURLcode res; - - res = curl_easy_perform (curl); - fclose (theFile); - curl_easy_setopt (curl, CURLOPT_NOPROGRESS, 1); // turn off the progress bar - - if (res != CURLE_OK) { - /* it's not an error if the user pressed the stop button */ - if (res != CURLE_ABORTED_BY_CALLBACK) { - error << string_compose (_("curl error %1 (%2)"), res, curl_easy_strerror(res)) << endmsg; - } - remove ( (audioFileName+".part").c_str() ); - } else { - rename ( (audioFileName+".part").c_str(), audioFileName.c_str() ); - // now download the tags &c. - getSoundResourceFile(ID); - } - - return (void *) res; -} - -void -Mootcher::doneWithMootcher() -{ - - // update the sound info pane if the selection in the list box is still us - sfb->refresh_display(ID, audioFileName); - - delete this; // this should be OK to do as long as Progress and Finished signals are always received in the order in which they are emitted -} - -static void * -freesound_download_thread_func(void *arg) -{ - Mootcher *thisMootcher = (Mootcher *) arg; - void *res; - - // std::cerr << "freesound_download_thread_func(" << arg << ")" << std::endl; - res = thisMootcher->threadFunc(); - - thisMootcher->Finished(); /* EMIT SIGNAL */ - return res; -} - - -//------------------------------------------------------------------------ - -bool Mootcher::checkAudioFile(std::string originalFileName, std::string theID) -{ - ensureWorkingDir(); - ID = theID; - audioFileName = Glib::build_filename (basePath, ID + "-" + originalFileName); - - // check to see if audio file already exists - FILE *testFile = g_fopen(audioFileName.c_str(), "r"); - if (testFile) { - fseek (testFile , 0 , SEEK_END); - if (ftell (testFile) > 256) { - fclose (testFile); - return true; - } - - // else file was small, probably an error, delete it - fclose(testFile); - remove( audioFileName.c_str() ); - } - return false; -} - - -bool Mootcher::fetchAudioFile(std::string originalFileName, std::string theID, std::string audioURL, SoundFileBrowser *caller) -{ - ensureWorkingDir(); - ID = theID; - audioFileName = Glib::build_filename (basePath, ID + "-" + originalFileName); - - if (!curl) { - return false; - } - // now download the actual file - theFile = g_fopen( (audioFileName + ".part").c_str(), "wb" ); - - if (!theFile) { - return false; - } - - // create the download url - audioURL += "?api_key=" + api_key; - - setcUrlOptions(); - curl_easy_setopt(curl, CURLOPT_URL, audioURL.c_str() ); - curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, audioFileWrite); - curl_easy_setopt(curl, CURLOPT_WRITEDATA, theFile); - - std::string prog; - prog = string_compose (_("%1"), originalFileName); - progress_bar.set_text(prog); - - Gtk::VBox *freesound_vbox = dynamic_cast (caller->notebook.get_nth_page(2)); - freesound_vbox->pack_start(progress_hbox, Gtk::PACK_SHRINK); - progress_hbox.show(); - cancel_download = false; - sfb = caller; - - curl_easy_setopt (curl, CURLOPT_NOPROGRESS, 0); // turn on the progress bar - curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, progress_callback); - curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, this); - - Progress.connect(*this, invalidator (*this), boost::bind(&Mootcher::updateProgress, this, _1, _2), gui_context()); - Finished.connect(*this, invalidator (*this), boost::bind(&Mootcher::doneWithMootcher, this), gui_context()); - pthread_t freesound_download_thread; - pthread_create_and_store("freesound_import", &freesound_download_thread, freesound_download_thread_func, this); - - return true; -} - -//--------- - -void -Mootcher::updateProgress(double dlnow, double dltotal) -{ - if (dltotal > 0) { - double fraction = dlnow / dltotal; - // std::cerr << "progress idle: " << progress->bar->get_text() << ". " << progress->dlnow << " / " << progress->dltotal << " = " << fraction << std::endl; - if (fraction > 1.0) { - fraction = 1.0; - } else if (fraction < 0.0) { - fraction = 0.0; - } - progress_bar.set_fraction(fraction); - } -} - -int -Mootcher::progress_callback(void *caller, double dltotal, double dlnow, double /*ultotal*/, double /*ulnow*/) -{ - // It may seem curious to pass a pointer to an instance of an object to a static - // member function, but we can't use a normal member function as a curl progress callback, - // and we want access to some private members of Mootcher. - - Mootcher *thisMootcher = (Mootcher *) caller; - - if (thisMootcher->cancel_download) { - return -1; - } - - thisMootcher->Progress(dlnow, dltotal); /* EMIT SIGNAL */ - return 0; -} - +/* sfdb_freesound_mootcher.cpp ********************************************************************** + + Adapted for Ardour by Ben Loftis, March 2008 + Updated to new Freesound API by Colin Fletcher, November 2011 + + Mootcher 23-8-2005 + + Mootcher Online Access to thefreesoundproject website + http://freesound.iua.upf.edu/ + + GPL 2005 Jorn Lemon + mail for questions/remarks: mootcher@twistedlemon.nl + or go to the freesound website forum + + ----------------------------------------------------------------- + + Includes: + curl.h (version 7.14.0) + Librarys: + libcurl.lib + + ----------------------------------------------------------------- + Licence GPL: + + 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + +*************************************************************************************/ +#include "sfdb_freesound_mootcher.h" + +#include "pbd/xml++.h" +#include "pbd/error.h" + +#include +#include +#include + +#include +#include "pbd/gstdio_compat.h" + +#include "pbd/i18n.h" + +#include "ardour/audio_library.h" +#include "ardour/rc_configuration.h" +#include "pbd/pthread_utils.h" +#include "gui_thread.h" + +using namespace PBD; + +static const std::string base_url = "http://www.freesound.org/api"; +static const std::string api_key = "9d77cb8d841b4bcfa960e1aae62224eb"; // ardour3 + +//------------------------------------------------------------------------ +Mootcher::Mootcher() + : curl(curl_easy_init()) +{ + cancel_download_btn.set_label (_("Cancel")); + progress_hbox.pack_start (progress_bar, true, true); + progress_hbox.pack_end (cancel_download_btn, false, false); + progress_bar.show(); + cancel_download_btn.show(); + cancel_download_btn.signal_clicked().connect(sigc::mem_fun (*this, &Mootcher::cancelDownload)); +}; +//------------------------------------------------------------------------ +Mootcher:: ~Mootcher() +{ + curl_easy_cleanup(curl); +} + +//------------------------------------------------------------------------ + +void Mootcher::ensureWorkingDir () +{ + std::string p = ARDOUR::Config->get_freesound_download_dir(); + + if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) { + if (g_mkdir_with_parents (p.c_str(), 0775) != 0) { + PBD::error << "Unable to create Mootcher working dir" << endmsg; + } + } + basePath = p; +#ifdef PLATFORM_WINDOWS + std::string replace = "/"; + size_t pos = basePath.find("\\"); + while( pos != std::string::npos ){ + basePath.replace(pos, 1, replace); + pos = basePath.find("\\"); + } +#endif +} + + +//------------------------------------------------------------------------ +size_t Mootcher::WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data) +{ + int realsize = (int)(size * nmemb); + struct SfdbMemoryStruct *mem = (struct SfdbMemoryStruct *)data; + + mem->memory = (char *)realloc(mem->memory, mem->size + realsize + 1); + + if (mem->memory) { + memcpy(&(mem->memory[mem->size]), ptr, realsize); + mem->size += realsize; + mem->memory[mem->size] = 0; + } + return realsize; +} + + +//------------------------------------------------------------------------ + +std::string Mootcher::sortMethodString(enum sortMethod sort) +{ +// given a sort type, returns the string value to be passed to the API to +// sort the results in the requested way. + + switch (sort) { + case sort_duration_desc: return "duration_desc"; + case sort_duration_asc: return "duration_asc"; + case sort_created_desc: return "created_desc"; + case sort_created_asc: return "created_asc"; + case sort_downloads_desc: return "downloads_desc"; + case sort_downloads_asc: return "downloads_asc"; + case sort_rating_desc: return "rating_desc"; + case sort_rating_asc: return "rating_asc"; + default: return ""; + } +} + +//------------------------------------------------------------------------ +void Mootcher::setcUrlOptions() +{ + // some servers don't like requests that are made without a user-agent field, so we provide one + curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0"); + // setup curl error buffer + curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorBuffer); + // Allow redirection + curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1); + + // Allow connections to time out (without using signals) + curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); + curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 30); + + +} + +std::string Mootcher::doRequest(std::string uri, std::string params) +{ + std::string result; + struct SfdbMemoryStruct xml_page; + xml_page.memory = NULL; + xml_page.size = 0; + + setcUrlOptions(); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *) &xml_page); + + // curl_easy_setopt(curl, CURLOPT_HTTPGET, 1); + // curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postMessage.c_str()); + // curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, -1); + + // the url to get + std::string url = base_url + uri + "?"; + if (params != "") { + url += params + "&api_key=" + api_key + "&format=xml"; + } else { + url += "api_key=" + api_key + "&format=xml"; + } + + curl_easy_setopt(curl, CURLOPT_URL, url.c_str() ); + + // perform online request + CURLcode res = curl_easy_perform(curl); + if( res != 0 ) { + error << string_compose (_("curl error %1 (%2)"), res, curl_easy_strerror(res)) << endmsg; + return ""; + } + + // free the memory + if (xml_page.memory) { + result = xml_page.memory; + } + + free (xml_page.memory); + xml_page.memory = NULL; + xml_page.size = 0; + + return result; +} + + +std::string Mootcher::searchSimilar(std::string id) +{ + std::string params = ""; + + params += "&fields=id,original_filename,duration,filesize,samplerate,license,serve"; + params += "&num_results=100"; + + return doRequest("/sounds/" + id + "/similar", params); +} + +//------------------------------------------------------------------------ + +std::string Mootcher::searchText(std::string query, int page, std::string filter, enum sortMethod sort) +{ + std::string params = ""; + char buf[24]; + + if (page > 1) { + snprintf(buf, 23, "p=%d&", page); + params += buf; + } + + char *eq = curl_easy_escape(curl, query.c_str(), query.length()); + params += "q=\"" + std::string(eq) + "\""; + free(eq); + + if (filter != "") { + char *ef = curl_easy_escape(curl, filter.c_str(), filter.length()); + params += "&f=" + std::string(ef); + free(ef); + } + + if (sort) + params += "&s=" + sortMethodString(sort); + + params += "&fields=id,original_filename,duration,filesize,samplerate,license,serve"; + params += "&sounds_per_page=100"; + + return doRequest("/sounds/search", params); +} + +//------------------------------------------------------------------------ + +std::string Mootcher::getSoundResourceFile(std::string ID) +{ + + std::string originalSoundURI; + std::string audioFileName; + std::string xml; + + + // download the xmlfile into xml_page + xml = doRequest("/sounds/" + ID, ""); + + XMLTree doc; + doc.read_buffer( xml.c_str() ); + XMLNode *freesound = doc.root(); + + // if the page is not a valid xml document with a 'freesound' root + if (freesound == NULL) { + error << _("getSoundResourceFile: There is no valid root in the xml file") << endmsg; + return ""; + } + + if (strcmp(doc.root()->name().c_str(), "response") != 0) { + error << string_compose (_("getSoundResourceFile: root = %1, != response"), doc.root()->name()) << endmsg; + return ""; + } + + XMLNode *name = freesound->child("original_filename"); + + // get the file name and size from xml file + if (name) { + + audioFileName = Glib::build_filename (basePath, ID + "-" + name->child("text")->content()); + + //store all the tags in the database + XMLNode *tags = freesound->child("tags"); + if (tags) { + XMLNodeList children = tags->children(); + XMLNodeConstIterator niter; + std::vector strings; + for (niter = children.begin(); niter != children.end(); ++niter) { + XMLNode *node = *niter; + if( strcmp( node->name().c_str(), "resource") == 0 ) { + XMLNode *text = node->child("text"); + if (text) { + // std::cerr << "tag: " << text->content() << std::endl; + strings.push_back(text->content()); + } + } + } + ARDOUR::Library->set_tags (std::string("//")+audioFileName, strings); + ARDOUR::Library->save_changes (); + } + } + + return audioFileName; +} + +int audioFileWrite(void *buffer, size_t size, size_t nmemb, void *file) +{ + return (int)fwrite(buffer, size, nmemb, (FILE*) file); +}; + +//------------------------------------------------------------------------ + +void * +Mootcher::threadFunc() { +CURLcode res; + + res = curl_easy_perform (curl); + fclose (theFile); + curl_easy_setopt (curl, CURLOPT_NOPROGRESS, 1); // turn off the progress bar + + if (res != CURLE_OK) { + /* it's not an error if the user pressed the stop button */ + if (res != CURLE_ABORTED_BY_CALLBACK) { + error << string_compose (_("curl error %1 (%2)"), res, curl_easy_strerror(res)) << endmsg; + } + remove ( (audioFileName+".part").c_str() ); + } else { + rename ( (audioFileName+".part").c_str(), audioFileName.c_str() ); + // now download the tags &c. + getSoundResourceFile(ID); + } + + return (void *) res; +} + +void +Mootcher::doneWithMootcher() +{ + + // update the sound info pane if the selection in the list box is still us + sfb->refresh_display(ID, audioFileName); + + delete this; // this should be OK to do as long as Progress and Finished signals are always received in the order in which they are emitted +} + +static void * +freesound_download_thread_func(void *arg) +{ + Mootcher *thisMootcher = (Mootcher *) arg; + void *res; + + // std::cerr << "freesound_download_thread_func(" << arg << ")" << std::endl; + res = thisMootcher->threadFunc(); + + thisMootcher->Finished(); /* EMIT SIGNAL */ + return res; +} + + +//------------------------------------------------------------------------ + +bool Mootcher::checkAudioFile(std::string originalFileName, std::string theID) +{ + ensureWorkingDir(); + ID = theID; + audioFileName = Glib::build_filename (basePath, ID + "-" + originalFileName); + + // check to see if audio file already exists + FILE *testFile = g_fopen(audioFileName.c_str(), "r"); + if (testFile) { + fseek (testFile , 0 , SEEK_END); + if (ftell (testFile) > 256) { + fclose (testFile); + return true; + } + + // else file was small, probably an error, delete it + fclose(testFile); + remove( audioFileName.c_str() ); + } + return false; +} + + +bool Mootcher::fetchAudioFile(std::string originalFileName, std::string theID, std::string audioURL, SoundFileBrowser *caller) +{ + ensureWorkingDir(); + ID = theID; + audioFileName = Glib::build_filename (basePath, ID + "-" + originalFileName); + + if (!curl) { + return false; + } + // now download the actual file + theFile = g_fopen( (audioFileName + ".part").c_str(), "wb" ); + + if (!theFile) { + return false; + } + + // create the download url + audioURL += "?api_key=" + api_key; + + setcUrlOptions(); + curl_easy_setopt(curl, CURLOPT_URL, audioURL.c_str() ); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, audioFileWrite); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, theFile); + + std::string prog; + prog = string_compose (_("%1"), originalFileName); + progress_bar.set_text(prog); + + Gtk::VBox *freesound_vbox = dynamic_cast (caller->notebook.get_nth_page(2)); + freesound_vbox->pack_start(progress_hbox, Gtk::PACK_SHRINK); + progress_hbox.show(); + cancel_download = false; + sfb = caller; + + curl_easy_setopt (curl, CURLOPT_NOPROGRESS, 0); // turn on the progress bar + curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, progress_callback); + curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, this); + + Progress.connect(*this, invalidator (*this), boost::bind(&Mootcher::updateProgress, this, _1, _2), gui_context()); + Finished.connect(*this, invalidator (*this), boost::bind(&Mootcher::doneWithMootcher, this), gui_context()); + pthread_t freesound_download_thread; + pthread_create_and_store("freesound_import", &freesound_download_thread, freesound_download_thread_func, this); + + return true; +} + +//--------- + +void +Mootcher::updateProgress(double dlnow, double dltotal) +{ + if (dltotal > 0) { + double fraction = dlnow / dltotal; + // std::cerr << "progress idle: " << progress->bar->get_text() << ". " << progress->dlnow << " / " << progress->dltotal << " = " << fraction << std::endl; + if (fraction > 1.0) { + fraction = 1.0; + } else if (fraction < 0.0) { + fraction = 0.0; + } + progress_bar.set_fraction(fraction); + } +} + +int +Mootcher::progress_callback(void *caller, double dltotal, double dlnow, double /*ultotal*/, double /*ulnow*/) +{ + // It may seem curious to pass a pointer to an instance of an object to a static + // member function, but we can't use a normal member function as a curl progress callback, + // and we want access to some private members of Mootcher. + + Mootcher *thisMootcher = (Mootcher *) caller; + + if (thisMootcher->cancel_download) { + return -1; + } + + thisMootcher->Progress(dlnow, dltotal); /* EMIT SIGNAL */ + return 0; +} +