conform audio to planar in the decoder

app/codec/planarfiledevice.cpp

@@ -0,0 +1,119 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2021 Olive Team
+
+  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 3 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, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "planarfiledevice.h"
+
+namespace olive {
+
+PlanarFileDevice::PlanarFileDevice(QObject *parent) :
+  QObject(parent)
+{
+
+}
+
+PlanarFileDevice::~PlanarFileDevice()
+{
+  close();
+}
+
+bool PlanarFileDevice::open(const QVector<QString> &filenames, QIODevice::OpenMode mode)
+{
+  if (isOpen()) {
+    // Already open
+    return false;
+  }
+
+  files_.resize(filenames.size());
+  files_.fill(nullptr);
+
+  for (int i=0; i<files_.size(); i++) {
+    files_[i] = new QFile(filenames.at(i));
+    if (!files_[i]->open(mode)) {
+      close();
+      return false;
+    }
+  }
+
+  return true;
+}
+
+qint64 PlanarFileDevice::read(char **data, qint64 bytes_per_channel, qint64 offset)
+{
+  qint64 ret = -1;
+
+  if (isOpen()) {
+    for (int i=0; i<files_.size(); i++) {
+      // Kind of clunky but should be largely fine
+      ret = files_[i]->read(data[i] + offset, bytes_per_channel);
+    }
+  }
+
+  return ret;
+}
+
+qint64 PlanarFileDevice::write(const char **data, qint64 bytes_per_channel, qint64 offset)
+{
+  qint64 ret = -1;
+
+  if (isOpen()) {
+    for (int i=0; i<files_.size(); i++) {
+      // Kind of clunky but should be largely fine
+      ret = files_[i]->write(data[i] + offset, bytes_per_channel);
+    }
+  }
+
+  return ret;
+}
+
+qint64 PlanarFileDevice::size() const
+{
+  if (isOpen()) {
+    return files_.first()->size();
+  } else {
+    return 0;
+  }
+}
+
+bool PlanarFileDevice::seek(qint64 pos)
+{
+  bool ret = true;
+
+  for (int i=0; i<files_.size(); i++) {
+    ret = files_[i]->seek(pos) & ret;
+  }
+
+  return ret;
+}
+
+void PlanarFileDevice::close()
+{
+  for (int i=0; i<files_.size(); i++) {
+    QFile *f = files_.at(i);
+    if (f) {
+      if (f->isOpen()) {
+        f->close();
+      }
+      delete f;
+    }
+  }
+  files_.clear();
+}
+
+}