msvc: updated code for higher warning level

app/CMakeLists.txt

@@ -64,7 +64,7 @@ endif()
 target_compile_definitions(${OLIVE_TARGET} PRIVATE ${OLIVE_DEFINITIONS})
 
 if(MSVC)
-  target_compile_options(${OLIVE_TARGET} PRIVATE /WX /W4 /experimental:external /external:anglebrackets /external:W0 "$<$<CONFIG:RELEASE>:/O2>")
+  target_compile_options(${OLIVE_TARGET} PRIVATE /WX /W4 /wd4127 /wd4456 /wd4706 /experimental:external /external:anglebrackets /external:W0 "$<$<CONFIG:RELEASE>:/O2>")
 else()
   target_compile_options(${OLIVE_TARGET} PRIVATE -O2 -Werror -Wuninitialized -pedantic-errors -Wall -Wextra -Wconversion -Wsign-conversion)
 endif()

app/codec/ffmpeg/ffmpegdecoder.cpp

@@ -358,14 +358,14 @@ FramePtr FFmpegDecoder::RetrieveAudio(const rational &timecode, const rational &
   WaveInput input(GetConformedFilename(params));
 
   if (input.open()) {
-    const AudioRenderingParams& params = input.params();
+    const AudioRenderingParams& input_params = input.params();
 
     FramePtr audio_frame = Frame::Create();
-    audio_frame->set_audio_params(params);
-    audio_frame->set_sample_count(params.time_to_samples(length));
+    audio_frame->set_audio_params(input_params);
+    audio_frame->set_sample_count(input_params.time_to_samples(length));
     audio_frame->allocate();
 
-    input.read(params.time_to_bytes(timecode),
+    input.read(input_params.time_to_bytes(timecode),
                audio_frame->data(),
                audio_frame->allocated_size());
 
@@ -883,7 +883,7 @@ void FFmpegDecoder::IndexAudio(AVPacket *pkt, AVFrame *frame)
           data_frame->format = dst_sample_fmt;
           av_frame_make_writable(data_frame);
 
-          int ret = swr_convert_frame(resampler, data_frame, frame);
+          ret = swr_convert_frame(resampler, data_frame, frame);
 
           if (ret != 0) {
             char err_str[50];

app/dialog/export/exportaudiotab.cpp

@@ -37,8 +37,8 @@ ExportAudioTab::ExportAudioTab(QWidget* parent) :
 
   channel_layout_combobox_ = new QComboBox();
   channel_layouts_ = Core::SupportedChannelLayouts();
-  foreach (const uint64_t& layout, channel_layouts_) {
-    channel_layout_combobox_->addItem(Core::ChannelLayoutToString(layout), QVariant::fromValue(layout));
+  foreach (const uint64_t& ch_layout, channel_layouts_) {
+    channel_layout_combobox_->addItem(Core::ChannelLayoutToString(ch_layout), QVariant::fromValue(layout));
   }
   layout->addWidget(channel_layout_combobox_, row, 1);
 

app/dialog/sequence/sequence.cpp

@@ -115,8 +115,8 @@ SequenceDialog::SequenceDialog(Sequence* s, Type t, QWidget* parent) :
 
   // Set up available channel layouts
   QList<uint64_t> channel_layouts = Core::SupportedChannelLayouts();
-  foreach (const uint64_t& layout, channel_layouts) {
-    audio_channels_field_->addItem(Core::ChannelLayoutToString(layout), QVariant::fromValue(layout));
+  foreach (const uint64_t& ch_layout, channel_layouts) {
+    audio_channels_field_->addItem(Core::ChannelLayoutToString(ch_layout), QVariant::fromValue(layout));
   }
 
   // Set values based on input sequence

app/render/diskmanager.cpp

@@ -137,8 +137,8 @@ void DiskManager::CreatedFile(const QString &file_name, const QByteArray &hash)
 
   lock_.unlock();
 
-  foreach (const QByteArray& hash, deleted_hashes) {
-    emit DeletedFrame(hash);
+  foreach (const QByteArray& h, deleted_hashes) {
+    emit DeletedFrame(h);
   }
 }