diff options
Diffstat (limited to 'Build/source/libs/poppler/poppler-0.24.1/poppler/Sound.cc')
-rw-r--r-- | Build/source/libs/poppler/poppler-0.24.1/poppler/Sound.cc | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/Build/source/libs/poppler/poppler-0.24.1/poppler/Sound.cc b/Build/source/libs/poppler/poppler-0.24.1/poppler/Sound.cc new file mode 100644 index 00000000000..6129fdcb47d --- /dev/null +++ b/Build/source/libs/poppler/poppler-0.24.1/poppler/Sound.cc @@ -0,0 +1,145 @@ +/* Sound.cc - an object that holds the sound structure + * Copyright (C) 2006-2007, Pino Toscano <pino@kde.org> + * Copyright (C) 2009, Albert Astals Cid <aacid@kde.org> + * + * 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, 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 "GooString.h" +#include "Object.h" +#include "Sound.h" +#include "Stream.h" +#include "FileSpec.h" + +Sound *Sound::parseSound(Object *obj) +{ + // let's try to see if this Object is a Sound, according to the PDF specs + // (section 9.2) + Stream *str = NULL; + // the Object must be a Stream + if (obj->isStream()) { + str = obj->getStream(); + } else { + return NULL; + } + // the Stream must have a Dict + Dict *dict = str->getDict(); + if (dict == NULL) + return NULL; + Object tmp; + // the Dict must have the 'R' key of type num + dict->lookup("R", &tmp); + if (tmp.isNum()) { + return new Sound(obj); + } else { + return NULL; + } +} + +Sound::Sound(Object *obj, bool readAttrs) +{ + streamObj = new Object(); + streamObj->initNull(); + obj->copy(streamObj); + + fileName = NULL; + samplingRate = 0.0; + channels = 1; + bitsPerSample = 8; + encoding = soundRaw; + + if (readAttrs) + { + Object tmp; + Dict *dict = streamObj->getStream()->getDict(); + dict->lookup("F", &tmp); + if (!tmp.isNull()) { + Object obj1; + // valid 'F' key -> external file + kind = soundExternal; + if (getFileSpecNameForPlatform (&tmp, &obj1)) { + fileName = obj1.getString()->copy(); + obj1.free(); + } + } else { + // no file specification, then the sound data have to be + // extracted from the stream + kind = soundEmbedded; + } + tmp.free(); + // sampling rate + dict->lookup("R", &tmp); + if (tmp.isNum()) { + samplingRate = tmp.getNum(); + } + tmp.free(); + // sound channels + dict->lookup("C", &tmp); + if (tmp.isInt()) { + channels = tmp.getInt(); + } + tmp.free(); + // bits per sample + dict->lookup("B", &tmp); + if (tmp.isInt()) { + bitsPerSample = tmp.getInt(); + } + tmp.free(); + // encoding format + dict->lookup("E", &tmp); + if (tmp.isName()) + { + const char *enc = tmp.getName(); + if (strcmp("Raw", enc) == 0) { + encoding = soundRaw; + } else if (strcmp("Signed", enc) == 0) { + encoding = soundSigned; + } else if (strcmp("muLaw", enc) == 0) { + encoding = soundMuLaw; + } else if (strcmp("ALaw", enc) == 0) { + encoding = soundALaw; + } + } + tmp.free(); + } +} + +Sound::~Sound() +{ + delete fileName; + streamObj->free(); + delete streamObj; +} + +Stream *Sound::getStream() +{ + return streamObj->getStream(); +} + +Sound *Sound::copy() +{ + Sound *newsound = new Sound(streamObj, false); + + newsound->kind = kind; + if (fileName) { + newsound->fileName = fileName->copy(); + } + newsound->samplingRate = samplingRate; + newsound->channels = channels; + newsound->bitsPerSample = bitsPerSample; + newsound->encoding = encoding; + + return newsound; +} |