diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e86e50aba..40381ae35 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -285,12 +285,14 @@ jobs:
             os-arch: x86_64
             os: macos-10.15
             cmake-gen: Ninja
+            min-deploy: 10.13
           - build-type: RelWithDebInfo
             compiler-name: Clang LLVM
             os-name: macOS
             os-arch: arm64
             os: macos-11.0
             cmake-gen: Ninja
+            min-deploy: 11.0
     env:
       DEP_LOCATION: /opt/olive-editor
     name: |
@@ -349,7 +351,7 @@ jobs:
           brew install ninja
           PATH=$DEP_LOCATION:$DEP_LOCATION/bin:$DEP_LOCATION/include:$DEP_LOCATION/lib:$DEP_LOCATION/crashpad:$PATH \
             cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} \
-              -DCMAKE_OSX_DEPLOYMENT_TARGET=10.13 -G "${{ matrix.cmake-gen }}" \
+              -DCMAKE_OSX_DEPLOYMENT_TARGET=${{ matrix.min-deploy }} -G "${{ matrix.cmake-gen }}" \
               -DCMAKE_OSX_ARCHITECTURES="${{ matrix.os-arch }}"
 
       - name: Build
@@ -367,10 +369,9 @@ jobs:
 
       - name: Create Package
         working-directory: ${{ runner.workspace }}/build
-        env:
-          BUNDLE_NAME: "Olive.app"
         shell: bash
         run: |
+          BUNDLE_NAME="Olive.app"
           brew install dylibbundler
 
           if [ "${{ matrix.os-arch }}" == "x86_64" ]
@@ -383,12 +384,12 @@ jobs:
           dylibbundler -b -ns -x "$BUNDLE_NAME/Contents/MacOS/Olive" -s "$DEP_LOCATION/lib" -d "$BUNDLE_NAME/Contents/Frameworks" -p "@executable_path/../Frameworks" $DYLIBBUNDLER_EXTRA_ARGS
 
           # Copy Qt frameworks and plugins
-          cp -R $DEP_LOCATION/lib/Qt*.framework $BUNDLE_NAME/Contents/Frameworks
-          cp -R $DEP_LOCATION/plugins $BUNDLE_NAME/Contents
+          cp -Ra $DEP_LOCATION/lib/Qt*.framework $BUNDLE_NAME/Contents/Frameworks
+          cp -Ra $DEP_LOCATION/plugins $BUNDLE_NAME/Contents
 
           # HACK: On x86_64, dylibbundler doesn't resolve this symlink. Weirdly it does on ARM64,
           #       but perhaps I'll bring it up with them soon.
-          cp $BUNDLE_NAME/Contents/Frameworks/libpng16.16.37.0.dylib $BUNDLE_NAME/Contents/Frameworks/libpng16.16.dylib
+          cp -a $BUNDLE_NAME/Contents/Frameworks/libpng16.16.37.0.dylib $BUNDLE_NAME/Contents/Frameworks/libpng16.16.dylib
 
           if [ "${{ matrix.os-arch }}" == "x86_64" ]
           then
@@ -400,6 +401,42 @@ jobs:
             mv Olive.sym "$SYM_DIR"
           fi
 
+      - name: Sign Application
+        working-directory: ${{ runner.workspace }}/build
+        shell: bash
+        env:
+          BUILD_CERTIFICATE_BASE64: ${{ secrets.BUILD_CERTIFICATE_BASE64 }}
+          P12_PASSWORD: ${{ secrets.P12_PASSWORD }}
+          KEYCHAIN_PASSWORD: ${{ secrets.KEYCHAIN_PASSWORD }}
+        run: |
+          BUNDLE_NAME="Olive.app"
+
+          # Install certificate
+          CERTIFICATE_PATH=$RUNNER_TEMP/build_certificate.p12
+          KEYCHAIN_PATH=$RUNNER_TEMP/app-signing.keychain-db
+
+          # import certificate from secrets
+          echo -n "$BUILD_CERTIFICATE_BASE64" | base64 --decode --output $CERTIFICATE_PATH
+
+          # create temporary keychain
+          security create-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+          security set-keychain-settings -lut 21600 $KEYCHAIN_PATH
+          security unlock-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
+
+          # import certificate to keychain
+          security import $CERTIFICATE_PATH -P "$P12_PASSWORD" -A -t cert -f pkcs12 -k $KEYCHAIN_PATH
+          security list-keychain -d user -s $KEYCHAIN_PATH
+
+          # HACK: Remove unsignable frameworks
+          rm -r $BUNDLE_NAME/Contents/Frameworks/QtUiPlugin.framework
+          if [ "${{ matrix.os-arch }}" == "arm64" ]
+          then
+            rm -r $BUNDLE_NAME/Contents/Frameworks/QtZlib.framework
+          fi
+
+          # Sign application
+          codesign --deep --sign "Developer ID Application: Olive Studios LLC" $BUNDLE_NAME
+
       - name: Deploy Packages
         working-directory: ${{ runner.workspace }}/build
         shell: bash
diff --git a/app/audio/CMakeLists.txt b/app/audio/CMakeLists.txt
index 6efe27768..5d190af1f 100644
--- a/app/audio/CMakeLists.txt
+++ b/app/audio/CMakeLists.txt
@@ -22,6 +22,8 @@ set(OLIVE_SOURCES
   audio/audiovisualwaveform.h
   audio/packedprocessor.cpp
   audio/packedprocessor.h
+  audio/planarprocessor.cpp
+  audio/planarprocessor.h
   audio/tempoprocessor.cpp
   audio/tempoprocessor.h
   PARENT_SCOPE
diff --git a/app/audio/packedprocessor.cpp b/app/audio/packedprocessor.cpp
index 10eb9ea18..f748da5c2 100644
--- a/app/audio/packedprocessor.cpp
+++ b/app/audio/packedprocessor.cpp
@@ -76,17 +76,12 @@ QByteArray PackedProcessor::Convert(SampleBufferPtr planar)
     return QByteArray();
   }
 
-  int nb_channels = planar->audio_params().channel_count();
-
   QByteArray output(planar->audio_params().samples_to_bytes(nb_samples), Qt::Uninitialized);
   uint8_t *output_data = reinterpret_cast<uint8_t*>(output.data());
 
-  QVector<const uint8_t*> input_arrays(nb_channels);
-  for (int i=0; i<nb_channels; i++) {
-    input_arrays[i] = reinterpret_cast<const uint8_t*>(planar->data(i));
-  }
-
-  int ret = swr_convert(swr_ctx_, &output_data, nb_samples, input_arrays.data(), nb_samples);
+  int ret = swr_convert(swr_ctx_, &output_data, nb_samples,
+                        const_cast<const uint8_t**>(reinterpret_cast<uint8_t**>(planar->to_raw_ptrs())),
+                        nb_samples);
   if (ret < 0) {
     char buf[200];
     av_strerror(ret, buf, 200);
diff --git a/app/audio/planarprocessor.cpp b/app/audio/planarprocessor.cpp
new file mode 100644
index 000000000..abd2be85b
--- /dev/null
+++ b/app/audio/planarprocessor.cpp
@@ -0,0 +1,104 @@
+/***
+
+  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 "planarprocessor.h"
+
+#include "common/ffmpegutils.h"
+
+namespace olive {
+
+PlanarProcessor::PlanarProcessor() :
+  swr_ctx_(nullptr)
+{
+}
+
+PlanarProcessor::~PlanarProcessor()
+{
+  Close();
+}
+
+bool PlanarProcessor::Open(const AudioParams &params)
+{
+  if (IsOpen()) {
+    return true;
+  }
+
+  swr_ctx_ = swr_alloc_set_opts(nullptr,
+                                params.channel_layout(),
+                                FFmpegUtils::GetFFmpegSampleFormat(params.format(), true),
+                                params.sample_rate(),
+                                params.channel_layout(),
+                                FFmpegUtils::GetFFmpegSampleFormat(params.format(), false),
+                                params.sample_rate(),
+                                0,
+                                nullptr);
+
+  if (!swr_ctx_) {
+    qCritical() << "Failed to allocate resample context";
+    return false;
+  }
+
+  if (swr_init(swr_ctx_) < 0) {
+    qCritical() << "Failed to init resample context";
+    swr_free(&swr_ctx_);
+    return false;
+  }
+
+  params_ = params;
+
+  return true;
+}
+
+SampleBufferPtr PlanarProcessor::Convert(const QByteArray &packed)
+{
+  if (!IsOpen()) {
+    qCritical() << "Tried to convert while closed";
+    return nullptr;
+  }
+
+  if (packed.isEmpty()) {
+    return nullptr;
+  }
+
+  int nb_samples_per_channel = params_.bytes_to_samples(packed.size());
+
+  SampleBufferPtr output = SampleBuffer::CreateAllocated(params_, nb_samples_per_channel);
+
+  const uint8_t *input = reinterpret_cast<const uint8_t*>(packed.constData());
+  int ret = swr_convert(swr_ctx_,
+                        reinterpret_cast<uint8_t**>(output->to_raw_ptrs()), nb_samples_per_channel,
+                        &input, nb_samples_per_channel);
+  if (ret < 0) {
+    char buf[200];
+    av_strerror(ret, buf, 200);
+    qDebug() << "Planar processor failed with error:" << buf << ret;
+  }
+
+  return output;
+}
+
+void PlanarProcessor::Close()
+{
+  if (swr_ctx_) {
+    swr_free(&swr_ctx_);
+  }
+}
+
+}
diff --git a/app/audio/planarprocessor.h b/app/audio/planarprocessor.h
new file mode 100644
index 000000000..ad5167a95
--- /dev/null
+++ b/app/audio/planarprocessor.h
@@ -0,0 +1,62 @@
+/***
+
+  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/>.
+
+***/
+
+#ifndef PLANARPROCESSOR_H
+#define PLANARPROCESSOR_H
+
+extern "C" {
+#include <libswresample/swresample.h>
+}
+
+#include "codec/samplebuffer.h"
+#include "render/audioparams.h"
+
+namespace olive {
+
+class PlanarProcessor
+{
+public:
+  PlanarProcessor();
+
+  ~PlanarProcessor();
+
+  DISABLE_COPY_MOVE(PlanarProcessor)
+
+  bool Open(const AudioParams &params);
+
+  SampleBufferPtr Convert(const QByteArray &packed);
+
+  void Close();
+
+  bool IsOpen() const
+  {
+    return swr_ctx_;
+  }
+
+private:
+  SwrContext *swr_ctx_;
+
+  AudioParams params_;
+
+};
+
+}
+
+#endif // PLANARPROCESSOR_H
diff --git a/app/audio/tempoprocessor.cpp b/app/audio/tempoprocessor.cpp
index 0a0aa777e..f22946227 100644
--- a/app/audio/tempoprocessor.cpp
+++ b/app/audio/tempoprocessor.cpp
@@ -36,7 +36,6 @@ TempoProcessor::TempoProcessor() :
   filter_graph_(nullptr),
   buffersrc_ctx_(nullptr),
   buffersink_ctx_(nullptr),
-  processed_frame_(nullptr),
   open_(false)
 {
 }
@@ -150,47 +149,42 @@ bool TempoProcessor::Open(const AudioParams &params, const double& speed)
   return true;
 }
 
-void TempoProcessor::Push(const char *data, int length)
+void TempoProcessor::Push(const QByteArray &packed)
 {
-  if (flushed_) {
-    if (length > 0) {
-      qCritical() << "Tried to push" << length << "bytes after TempoProcessor was closed";
-    }
+  if (!IsOpen()) {
+    qWarning() << "Tried to push to closed TempoProcessor";
     return;
   }
 
-  AVFrame* src_frame;
-
-  if (length == 0) {
-    // No audio data, flush the last out of the filter graph
-    src_frame = nullptr;
-    flushed_ = true;
-  } else {
-    src_frame = av_frame_alloc();
-
-    if (!src_frame) {
-      qCritical() << "Failed to allocate source frame";
-      return;
-    }
-
-    // Allocate a buffer for the number of samples we got
-    src_frame->sample_rate = params_.sample_rate();
-    src_frame->format = FFmpegUtils::GetFFmpegSampleFormat(params_.format());
-    src_frame->channel_layout = params_.channel_layout();
-    src_frame->nb_samples = params_.bytes_to_samples(length);
-    src_frame->pts = timestamp_;
-    timestamp_ += src_frame->nb_samples;
-
-    if (av_frame_get_buffer(src_frame, 0) < 0) {
-      qCritical() << "Failed to allocate buffer for source frame";
-      av_frame_free(&src_frame);
-      return;
-    }
-
-    // Copy buffer from data array to frame
-    memcpy(src_frame->data[0], data, static_cast<size_t>(length));
+  if (flushed_) {
+    qWarning() << "Tried to push to flushed TempoProcessor";
+    return;
   }
 
+  AVFrame* src_frame = av_frame_alloc();
+
+  if (!src_frame) {
+    qCritical() << "Failed to allocate source frame";
+    return;
+  }
+
+  // Allocate a buffer for the number of samples we got
+  src_frame->sample_rate = params_.sample_rate();
+  src_frame->format = FFmpegUtils::GetFFmpegSampleFormat(params_.format());
+  src_frame->channel_layout = params_.channel_layout();
+  src_frame->nb_samples = params_.bytes_to_samples(packed.size());
+  src_frame->pts = timestamp_;
+  timestamp_ += src_frame->nb_samples;
+
+  if (av_frame_get_buffer(src_frame, 0) < 0) {
+    qCritical() << "Failed to allocate buffer for source frame";
+    av_frame_free(&src_frame);
+    return;
+  }
+
+  // Copy buffer from data array to frame
+  memcpy(src_frame->data[0], packed, packed.size());
+
   int ret = av_buffersrc_add_frame_flags(buffersrc_ctx_, src_frame, AV_BUFFERSRC_FLAG_KEEP_REF);
 
   if (ret < 0) {
@@ -202,46 +196,45 @@ void TempoProcessor::Push(const char *data, int length)
   }
 }
 
-int TempoProcessor::Pull(char *data, int max_length)
+void TempoProcessor::Flush()
 {
-  if (!processed_frame_) {
-    processed_frame_ = av_frame_alloc();
-
-    // Try to pull samples from the buffersink
-    int ret = av_buffersink_get_frame(buffersink_ctx_, processed_frame_);
-
+  if (!flushed_) {
+    int ret = av_buffersrc_add_frame_flags(buffersrc_ctx_, nullptr, AV_BUFFERSRC_FLAG_KEEP_REF);
     if (ret < 0) {
-      // We couldn't pull for some reason, if the error was EAGAIN, we just need to send more samples. Otherwise the
-      // error might be fatal...
-      if (ret != AVERROR(EAGAIN)) {
-        qCritical() << "Failed to pull from buffersink" << ret;
-      }
+      qCritical() << "Failed to feed buffer source" << ret;
+    }
+    flushed_ = true;
+  }
+}
 
-      av_frame_free(&processed_frame_);
+QByteArray TempoProcessor::Pull()
+{
+  QByteArray b;
+  AVFrame *processed_frame = av_frame_alloc();
 
-      return 0;
+  // Try to pull samples from the buffersink
+  int ret = av_buffersink_get_frame(buffersink_ctx_, processed_frame);
+
+  if (ret < 0) {
+    // We couldn't pull for some reason, if the error was EAGAIN, we just need to send more samples. Otherwise the
+    // error might be fatal...
+    if (ret != AVERROR(EAGAIN)) {
+      qCritical() << "Failed to pull from buffersink" << ret;
     }
 
-    processed_frame_byte_index_ = 0;
-    processed_frame_max_bytes_ = params_.samples_to_bytes(processed_frame_->nb_samples);
+    av_frame_free(&processed_frame);
+    return b;
   }
 
-  // Determine how many bytes we should copy into the data array
-  int copy_length = qMin(max_length, processed_frame_max_bytes_ - processed_frame_byte_index_);
+  b.resize(params_.samples_to_bytes(processed_frame->nb_samples));
 
   // Copy the bytes
-  memcpy(data, processed_frame_->data[0] + processed_frame_byte_index_, static_cast<size_t>(copy_length));
-
-  // Add the copied amount to the current index
-  processed_frame_byte_index_ += copy_length;
+  memcpy(b.data(), processed_frame->data[0], b.size());
 
   // If the index has reached the limit of this processed frame, we can dispose of the frame now
-  if (processed_frame_byte_index_ == processed_frame_max_bytes_) {
-    av_frame_free(&processed_frame_);
-    processed_frame_ = nullptr;
-  }
+  av_frame_free(&processed_frame);
 
-  return copy_length;
+  return b;
 }
 
 void TempoProcessor::Close()
@@ -253,11 +246,6 @@ void TempoProcessor::Close()
     filter_graph_ = nullptr;
   }
 
-  if (processed_frame_) {
-    av_frame_free(&processed_frame_);
-    processed_frame_ = nullptr;
-  }
-
   buffersrc_ctx_ = nullptr;
   buffersink_ctx_ = nullptr;
 }
diff --git a/app/audio/tempoprocessor.h b/app/audio/tempoprocessor.h
index bac242751..c56eafc5d 100644
--- a/app/audio/tempoprocessor.h
+++ b/app/audio/tempoprocessor.h
@@ -52,9 +52,11 @@ public:
 
   bool Open(const AudioParams& params, const double &speed);
 
-  void Push(const char *data, int length);
+  void Push(const QByteArray &packed);
 
-  int Pull(char* data, int max_length);
+  void Flush();
+
+  QByteArray Pull();
 
   void Close();
 
@@ -67,10 +69,6 @@ private:
 
   AVFilterContext* buffersink_ctx_;
 
-  AVFrame* processed_frame_;
-  int processed_frame_byte_index_;
-  int processed_frame_max_bytes_;
-
   AudioParams params_;
 
   int64_t timestamp_;
diff --git a/app/codec/exportcodec.cpp b/app/codec/exportcodec.cpp
index 947f9da63..254a9989c 100644
--- a/app/codec/exportcodec.cpp
+++ b/app/codec/exportcodec.cpp
@@ -44,6 +44,8 @@ QString ExportCodec::GetCodecName(ExportCodec::Codec c)
     return tr("PNG");
   case kCodecProRes:
     return tr("ProRes");
+    case kCodecCineform:
+    return tr("Cineform");
   case kCodecTIFF:
     return tr("TIFF");
   case kCodecMP2:
@@ -79,6 +81,7 @@ bool ExportCodec::IsCodecAStillImage(ExportCodec::Codec c)
   case kCodecH264rgb:
   case kCodecH265:
   case kCodecProRes:
+  case kCodecCineform:
   case kCodecMP2:
   case kCodecMP3:
   case kCodecAAC:
diff --git a/app/codec/exportcodec.h b/app/codec/exportcodec.h
index 1b5d1df47..f4d17dfa0 100644
--- a/app/codec/exportcodec.h
+++ b/app/codec/exportcodec.h
@@ -42,6 +42,7 @@ public:
     kCodecOpenEXR,
     kCodecPNG,
     kCodecProRes,
+    kCodecCineform,
     kCodecTIFF,
     kCodecVP9,
 
diff --git a/app/codec/exportformat.cpp b/app/codec/exportformat.cpp
index e89110142..59561d50b 100644
--- a/app/codec/exportformat.cpp
+++ b/app/codec/exportformat.cpp
@@ -117,7 +117,7 @@ QList<ExportCodec::Codec> ExportFormat::GetVideoCodecs(ExportFormat::Format f)
   case kFormatTIFF:
     return {ExportCodec::kCodecTIFF};
   case kFormatQuickTime:
-    return {ExportCodec::kCodecH264, ExportCodec::kCodecH264rgb, ExportCodec::kCodecH265, ExportCodec::kCodecProRes};
+    return {ExportCodec::kCodecH264, ExportCodec::kCodecH264rgb, ExportCodec::kCodecH265, ExportCodec::kCodecProRes, ExportCodec::kCodecCineform};
   case kFormatWebM:
     return {ExportCodec::kCodecVP9};
   case kFormatOgg:
diff --git a/app/codec/ffmpeg/ffmpegdecoder.cpp b/app/codec/ffmpeg/ffmpegdecoder.cpp
index fba94088d..9b2a0da1b 100644
--- a/app/codec/ffmpeg/ffmpegdecoder.cpp
+++ b/app/codec/ffmpeg/ffmpegdecoder.cpp
@@ -268,7 +268,7 @@ FootageDescription FFmpegDecoder::Probe(const QString &filename, const QAtomicIn
       AVStream* avstream = fmt_ctx->streams[i];
 
       // Find decoder for this stream, if it exists we can proceed
-      AVCodec* decoder = avcodec_find_decoder(avstream->codecpar->codec_id);
+      const AVCodec* decoder = avcodec_find_decoder(avstream->codecpar->codec_id);
 
       if (decoder
           && (avstream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO
@@ -1010,7 +1010,7 @@ bool FFmpegDecoder::Instance::Open(const char *filename, int stream_index)
   avstream_ = fmt_ctx_->streams[stream_index];
 
   // Find decoder
-  AVCodec* codec = avcodec_find_decoder(avstream_->codecpar->codec_id);
+  const AVCodec* codec = avcodec_find_decoder(avstream_->codecpar->codec_id);
 
   // Handle failure to find decoder
   if (codec == nullptr) {
diff --git a/app/codec/ffmpeg/ffmpegencoder.cpp b/app/codec/ffmpeg/ffmpegencoder.cpp
index a6ee5c68c..c1ea0927a 100644
--- a/app/codec/ffmpeg/ffmpegencoder.cpp
+++ b/app/codec/ffmpeg/ffmpegencoder.cpp
@@ -50,7 +50,7 @@ QStringList FFmpegEncoder::GetPixelFormatsForCodec(ExportCodec::Codec c) const
 {
   QStringList pix_fmts;
 
-  AVCodec* codec_info = GetEncoder(c);
+  const AVCodec* codec_info = GetEncoder(c);
 
   if (codec_info) {
     for (int i=0; codec_info->pix_fmts[i]!=-1; i++) {
@@ -570,7 +570,7 @@ bool FFmpegEncoder::InitializeStream(AVMediaType type, AVStream** stream_ptr, AV
   }
 
   // Find encoder
-  AVCodec* encoder = GetEncoder(codec);
+  const AVCodec* encoder = GetEncoder(codec);
   if (!encoder) {
     SetError(tr("Failed to find codec for 0x%1").arg(codec, 16));
     return false;
@@ -669,7 +669,7 @@ bool FFmpegEncoder::InitializeStream(AVMediaType type, AVStream** stream_ptr, AV
   return true;
 }
 
-bool FFmpegEncoder::InitializeCodecContext(AVStream **stream, AVCodecContext **codec_ctx, AVCodec* codec)
+bool FFmpegEncoder::InitializeCodecContext(AVStream **stream, AVCodecContext **codec_ctx, const AVCodec* codec)
 {
   *stream = avformat_new_stream(fmt_ctx_, nullptr);
   if (!(*stream)) {
@@ -687,7 +687,7 @@ bool FFmpegEncoder::InitializeCodecContext(AVStream **stream, AVCodecContext **c
   return true;
 }
 
-bool FFmpegEncoder::SetupCodecContext(AVStream* stream, AVCodecContext* codec_ctx, AVCodec* codec)
+bool FFmpegEncoder::SetupCodecContext(AVStream* stream, AVCodecContext* codec_ctx, const AVCodec* codec)
 {
   int error_code;
 
@@ -833,7 +833,7 @@ bool FFmpegEncoder::InitializeResampleContext(SampleBufferPtr audio)
   return true;
 }
 
-AVCodec *FFmpegEncoder::GetEncoder(ExportCodec::Codec c)
+const AVCodec *FFmpegEncoder::GetEncoder(ExportCodec::Codec c)
 {
   switch (c) {
   case ExportCodec::kCodecH264:
@@ -844,6 +844,8 @@ AVCodec *FFmpegEncoder::GetEncoder(ExportCodec::Codec c)
     return avcodec_find_encoder(AV_CODEC_ID_DNXHD);
   case ExportCodec::kCodecProRes:
     return avcodec_find_encoder(AV_CODEC_ID_PRORES);
+    case ExportCodec::kCodecCineform:
+    return avcodec_find_encoder(AV_CODEC_ID_CFHD);
   case ExportCodec::kCodecH265:
     return avcodec_find_encoder(AV_CODEC_ID_HEVC);
   case ExportCodec::kCodecVP9:
diff --git a/app/codec/ffmpeg/ffmpegencoder.h b/app/codec/ffmpeg/ffmpegencoder.h
index 1d643f4d3..d75d3f4ea 100644
--- a/app/codec/ffmpeg/ffmpegencoder.h
+++ b/app/codec/ffmpeg/ffmpegencoder.h
@@ -22,6 +22,7 @@
 #define FFMPEGENCODER_H
 
 extern "C" {
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libswscale/swscale.h>
 #include <libswresample/swresample.h>
@@ -69,15 +70,15 @@ private:
   bool WriteAVFrame(AVFrame* frame, AVCodecContext *codec_ctx, AVStream *stream);
 
   bool InitializeStream(enum AVMediaType type, AVStream** stream, AVCodecContext** codec_ctx, const ExportCodec::Codec &codec);
-  bool InitializeCodecContext(AVStream** stream, AVCodecContext** codec_ctx, AVCodec* codec);
-  bool SetupCodecContext(AVStream *stream, AVCodecContext *codec_ctx, AVCodec *codec);
+  bool InitializeCodecContext(AVStream** stream, AVCodecContext** codec_ctx, const AVCodec* codec);
+  bool SetupCodecContext(AVStream *stream, AVCodecContext *codec_ctx, const AVCodec *codec);
 
   void FlushEncoders();
   void FlushCodecCtx(AVCodecContext* codec_ctx, AVStream *stream);
 
   bool InitializeResampleContext(SampleBufferPtr audio);
 
-  static AVCodec *GetEncoder(ExportCodec::Codec c);
+  static const AVCodec *GetEncoder(ExportCodec::Codec c);
 
   AVFormatContext* fmt_ctx_;
 
diff --git a/app/common/ffmpegutils.h b/app/common/ffmpegutils.h
index 3e5ff105d..2262dc299 100644
--- a/app/common/ffmpegutils.h
+++ b/app/common/ffmpegutils.h
@@ -22,6 +22,7 @@
 #define FFMPEGABSTRACTION_H
 
 extern "C" {
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 }
 
diff --git a/app/common/timecodefunctions.cpp b/app/common/timecodefunctions.cpp
index eedf4d0f4..b80f8b237 100644
--- a/app/common/timecodefunctions.cpp
+++ b/app/common/timecodefunctions.cpp
@@ -157,10 +157,12 @@ int64_t Timecode::timecode_to_timestamp(const QString &timecode, const rational
     // Convert values to integers
     QList<int64_t> timecode_numbers;
 
+    bool negative = timecode.trimmed().startsWith('-');
+
     foreach (const QString& element, timecode_split) {
       valid = true;
 
-      timecode_numbers.append((element.isEmpty()) ? 0 : element.toLong(&valid));
+      timecode_numbers.append((element.isEmpty()) ? 0 : qAbs(element.toLong(&valid)));
 
       // If element cannot be converted to a number,
       if (!valid) {
@@ -203,6 +205,9 @@ int64_t Timecode::timecode_to_timestamp(const QString &timecode, const rational
     }
 
     if (ok) *ok = true;
+
+    if (negative) timestamp = -timestamp;
+
     return timestamp;
   }
   case kMilliseconds:
diff --git a/app/dialog/export/codec/CMakeLists.txt b/app/dialog/export/codec/CMakeLists.txt
index 7f4e2b5c8..1669edd70 100644
--- a/app/dialog/export/codec/CMakeLists.txt
+++ b/app/dialog/export/codec/CMakeLists.txt
@@ -16,11 +16,15 @@
 
 set(OLIVE_SOURCES
   ${OLIVE_SOURCES}
-  dialog/export/codec/codecsection.h
+  dialog/export/codec/cineformsection.cpp
+  dialog/export/codec/cineformsection.h
   dialog/export/codec/codecsection.cpp
-  dialog/export/codec/h264section.h
+  dialog/export/codec/codecsection.h
+  dialog/export/codec/codecstack.cpp
+  dialog/export/codec/codecstack.h
   dialog/export/codec/h264section.cpp
-  dialog/export/codec/imagesection.h
+  dialog/export/codec/h264section.h
   dialog/export/codec/imagesection.cpp
+  dialog/export/codec/imagesection.h
   PARENT_SCOPE
 )
diff --git a/app/dialog/export/codec/cineformsection.cpp b/app/dialog/export/codec/cineformsection.cpp
new file mode 100644
index 000000000..dedecb32e
--- /dev/null
+++ b/app/dialog/export/codec/cineformsection.cpp
@@ -0,0 +1,85 @@
+/***
+
+  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 "cineformsection.h"
+
+#include <QGridLayout>
+#include <QLabel>
+
+namespace olive {
+
+CineformSection::CineformSection(QWidget *parent) :
+  CodecSection(parent)
+{
+  QGridLayout *layout = new QGridLayout(this);
+
+  layout->setMargin(0);
+
+  int row = 0;
+
+  layout->addWidget(new QLabel(tr("Quality:")), row, 0);
+
+  quality_combobox_ = new QComboBox();
+
+  /* Correspond to the following indexes for FFmpeg
+   *
+   *   -quality           <int>        E..V....... set quality (from 0 to 12) (default film3+)
+   *     film3+          0            E..V.......
+   *     film3           1            E..V.......
+   *     film2+          2            E..V.......
+   *     film2           3            E..V.......
+   *     film1.5         4            E..V.......
+   *     film1+          5            E..V.......
+   *     film1           6            E..V.......
+   *     high+           7            E..V.......
+   *     high            8            E..V.......
+   *     medium+         9            E..V.......
+   *     medium          10           E..V.......
+   *     low+            11           E..V.......
+   *     low             12           E..V.......
+   *
+   */
+
+  quality_combobox_->addItem(tr("Film Scan 3+"));
+  quality_combobox_->addItem(tr("Film Scan 3"));
+  quality_combobox_->addItem(tr("Film Scan 2+"));
+  quality_combobox_->addItem(tr("Film Scan 2"));
+  quality_combobox_->addItem(tr("Film Scan 1.5"));
+  quality_combobox_->addItem(tr("Film Scan 1+"));
+  quality_combobox_->addItem(tr("Film Scan 1"));
+  quality_combobox_->addItem(tr("High+"));
+  quality_combobox_->addItem(tr("High"));
+  quality_combobox_->addItem(tr("Medium+"));
+  quality_combobox_->addItem(tr("Medium"));
+  quality_combobox_->addItem(tr("Low+"));
+  quality_combobox_->addItem(tr("Low"));
+
+  // Default to "medium"
+  quality_combobox_->setCurrentIndex(10);
+
+  layout->addWidget(quality_combobox_, row, 1);
+}
+
+void CineformSection::AddOpts(EncodingParams *params)
+{
+  params->set_video_option(QStringLiteral("quality"), QString::number(quality_combobox_->currentIndex()));
+}
+
+}
diff --git a/app/dialog/export/codec/cineformsection.h b/app/dialog/export/codec/cineformsection.h
new file mode 100644
index 000000000..6dc09f2d0
--- /dev/null
+++ b/app/dialog/export/codec/cineformsection.h
@@ -0,0 +1,45 @@
+/***
+
+  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/>.
+
+***/
+
+#ifndef CINEFORMSECTION_H
+#define CINEFORMSECTION_H
+
+#include <QComboBox>
+
+#include "codecsection.h"
+
+namespace olive {
+
+class CineformSection : public CodecSection
+{
+  Q_OBJECT
+public:
+  CineformSection(QWidget *parent = nullptr);
+
+  virtual void AddOpts(EncodingParams* params) override;
+
+private:
+  QComboBox *quality_combobox_;
+
+};
+
+}
+
+#endif // CINEFORMSECTION_H
diff --git a/app/dialog/export/codec/codecstack.cpp b/app/dialog/export/codec/codecstack.cpp
new file mode 100644
index 000000000..cdffb12cd
--- /dev/null
+++ b/app/dialog/export/codec/codecstack.cpp
@@ -0,0 +1,53 @@
+/***
+
+  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 "codecstack.h"
+
+namespace olive {
+
+#define super QStackedWidget
+
+CodecStack::CodecStack(QWidget *parent)
+  : super{parent}
+{
+  connect(this, &CodecStack::currentChanged, this, &CodecStack::OnChange);
+}
+
+void CodecStack::addWidget(QWidget *widget)
+{
+  super::addWidget(widget);
+
+  OnChange(currentIndex());
+}
+
+void CodecStack::OnChange(int index)
+{
+  for (int i=0; i<count(); i++) {
+    if (i == index) {
+      widget(i)->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    } else {
+      widget(i)->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
+    }
+    widget(i)->adjustSize();
+  }
+  adjustSize();
+}
+
+}
diff --git a/app/dialog/export/codec/codecstack.h b/app/dialog/export/codec/codecstack.h
new file mode 100644
index 000000000..116f8754c
--- /dev/null
+++ b/app/dialog/export/codec/codecstack.h
@@ -0,0 +1,45 @@
+/***
+
+  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/>.
+
+***/
+
+#ifndef CODECSTACK_H
+#define CODECSTACK_H
+
+#include <QStackedWidget>
+
+namespace olive {
+
+class CodecStack : public QStackedWidget
+{
+  Q_OBJECT
+public:
+  explicit CodecStack(QWidget *parent = nullptr);
+
+  void addWidget(QWidget *widget);
+
+signals:
+
+private slots:
+  void OnChange(int index);
+
+};
+
+}
+
+#endif // CODECSTACK_H
diff --git a/app/dialog/export/codec/h264section.cpp b/app/dialog/export/codec/h264section.cpp
index 101bf388f..6b15be526 100644
--- a/app/dialog/export/codec/h264section.cpp
+++ b/app/dialog/export/codec/h264section.cpp
@@ -42,6 +42,31 @@ H264Section::H264Section(int default_crf, QWidget *parent) :
   layout->setMargin(0);
 
   int row = 0;
+  layout->addWidget(new QLabel(tr("Encode Speed:")), row, 0);
+
+
+  preset_combobox_ = new QComboBox();
+  preset_combobox_->setToolTip(tr("This setting allows you to tweak the ratio of export speed to compression quality. \n\n"
+    "If using Constant Rate Factor, slower speeds will result in smaller file sizes for the same quality. \n\n"
+    "If using Target Bit Rate or Target File Size, slower speeds will result in higher quality for the same bitrate/filesize. \n\n"
+    "This setting is equivalent to the `preset` setting in libx264."));
+
+  preset_combobox_->addItem(tr("Ultra Fast"));
+  preset_combobox_->addItem(tr("Super Fast"));
+  preset_combobox_->addItem(tr("Very Fast"));
+  preset_combobox_->addItem(tr("Faster"));
+  preset_combobox_->addItem(tr("Fast"));
+  preset_combobox_->addItem(tr("Medium"));
+  preset_combobox_->addItem(tr("Slow"));
+  preset_combobox_->addItem(tr("Slower"));
+  preset_combobox_->addItem(tr("Very Slow"));
+  
+  //Default to "medium"
+  preset_combobox_->setCurrentIndex(5);
+
+  layout->addWidget(preset_combobox_, row, 1);
+
+  row++;
 
   layout->addWidget(new QLabel(tr("Compression Method:")), row, 0);
 
@@ -110,6 +135,8 @@ void H264Section::AddOpts(EncodingParams *params)
     params->set_video_buffer_size(2000000);
 
   }
+  
+  params->set_video_option(QStringLiteral("preset"), QString::number(preset_combobox_->currentIndex()));
 }
 
 H264CRFSection::H264CRFSection(int default_crf, QWidget *parent) :
diff --git a/app/dialog/export/codec/h264section.h b/app/dialog/export/codec/h264section.h
index 95f7fa84a..78fbef19a 100644
--- a/app/dialog/export/codec/h264section.h
+++ b/app/dialog/export/codec/h264section.h
@@ -23,6 +23,7 @@
 
 #include <QSlider>
 #include <QStackedWidget>
+#include <QComboBox>
 
 #include "codecsection.h"
 #include "widget/slider/floatslider.h"
@@ -111,6 +112,7 @@ private:
 
   H264FileSizeSection* filesize_section_;
 
+  QComboBox *preset_combobox_;
 };
 
 class H265Section : public H264Section
diff --git a/app/dialog/export/exportadvancedvideodialog.cpp b/app/dialog/export/exportadvancedvideodialog.cpp
index 9e38969fb..71143b50b 100644
--- a/app/dialog/export/exportadvancedvideodialog.cpp
+++ b/app/dialog/export/exportadvancedvideodialog.cpp
@@ -48,6 +48,7 @@ ExportAdvancedVideoDialog::ExportAdvancedVideoDialog(const QList<QString> &pix_f
     thread_slider_ = new IntegerSlider();
     thread_slider_->SetMinimum(0);
     thread_slider_->SetDefaultValue(0);
+    thread_slider_->InsertLabelSubstitution(0, tr("Auto"));
     performance_layout->addWidget(thread_slider_, row, 1);
 
     row++;
diff --git a/app/dialog/export/exportvideotab.cpp b/app/dialog/export/exportvideotab.cpp
index f8908cea3..d99cc59b0 100644
--- a/app/dialog/export/exportvideotab.cpp
+++ b/app/dialog/export/exportvideotab.cpp
@@ -173,7 +173,7 @@ QWidget *ExportVideoTab::SetupCodecSection()
 
   row++;
 
-  codec_stack_ = new QStackedWidget();
+  codec_stack_ = new CodecStack();
   codec_layout->addWidget(codec_stack_, row, 0, 1, 2);
 
   image_section_ = new ImageSection();
@@ -185,6 +185,9 @@ QWidget *ExportVideoTab::SetupCodecSection()
   h265_section_ = new H265Section();
   codec_stack_->addWidget(h265_section_);
 
+  cineform_section_ = new CineformSection();
+  codec_stack_->addWidget(cineform_section_);
+
   row++;
 
   QPushButton* advanced_btn = new QPushButton(tr("Advanced"));
@@ -240,6 +243,9 @@ void ExportVideoTab::VideoCodecChanged()
     case ExportCodec::kCodecH265:
       SetCodecSection(h265_section_);
       break;
+    case ExportCodec::kCodecCineform:
+      SetCodecSection(cineform_section_);
+      break;
     default:
       SetCodecSection(ExportCodec::IsCodecAStillImage(codec) ? image_section_ : nullptr);
   }
@@ -251,7 +257,6 @@ void ExportVideoTab::VideoCodecChanged()
   } else {
     pix_fmt_.clear();
   }
-  qDebug() << "Set default pix fmt" << pix_fmt_;
 }
 
 void ExportVideoTab::SetTime(const rational &time)
diff --git a/app/dialog/export/exportvideotab.h b/app/dialog/export/exportvideotab.h
index ce74d5a0a..4a952fb15 100644
--- a/app/dialog/export/exportvideotab.h
+++ b/app/dialog/export/exportvideotab.h
@@ -26,6 +26,8 @@
 #include <QWidget>
 
 #include "common/rational.h"
+#include "dialog/export/codec/cineformsection.h"
+#include "dialog/export/codec/codecstack.h"
 #include "dialog/export/codec/h264section.h"
 #include "dialog/export/codec/imagesection.h"
 #include "node/color/colormanager/colormanager.h"
@@ -155,10 +157,11 @@ private:
   QCheckBox* maintain_aspect_checkbox_;
   QComboBox* scaling_method_combobox_;
 
-  QStackedWidget* codec_stack_;
+  CodecStack* codec_stack_;
   ImageSection* image_section_;
   H264Section* h264_section_;
   H264Section* h265_section_;
+  CineformSection *cineform_section_;
 
   ColorSpaceChooser* color_space_chooser_;
 
diff --git a/app/dialog/sequence/sequencedialogpresettab.cpp b/app/dialog/sequence/sequencedialogpresettab.cpp
index a52258fa0..c3e471b9c 100644
--- a/app/dialog/sequence/sequencedialogpresettab.cpp
+++ b/app/dialog/sequence/sequencedialogpresettab.cpp
@@ -31,6 +31,7 @@
 
 #include "common/filefunctions.h"
 #include "config/config.h"
+#include "render/audioparams.h"
 #include "render/videoparams.h"
 #include "ui/icons/icons.h"
 #include "widget/menu/menu.h"
diff --git a/app/dialog/speedduration/speeddurationdialog.cpp b/app/dialog/speedduration/speeddurationdialog.cpp
index f5308e8c3..cf6af022a 100644
--- a/app/dialog/speedduration/speeddurationdialog.cpp
+++ b/app/dialog/speedduration/speeddurationdialog.cpp
@@ -22,6 +22,7 @@
 
 #include <QDialogButtonBox>
 #include <QGridLayout>
+#include <QGroupBox>
 #include <QMessageBox>
 
 #include "core.h"
@@ -39,58 +40,82 @@ SpeedDurationDialog::SpeedDurationDialog(const QVector<ClipBlock *> &clips, cons
 {
   setWindowTitle(tr("Speed/Duration"));
 
-  QGridLayout *layout = new QGridLayout(this);
+  QVBoxLayout *layout = new QVBoxLayout(this);
 
-  int row = 0;
+  {
+    QGroupBox *speed_group = new QGroupBox();
+    layout->addWidget(speed_group);
 
-  layout->addWidget(new QLabel(tr("Speed:")), row, 0);
+    QGridLayout *speed_layout = new QGridLayout(speed_group);
 
-  speed_slider_ = new FloatSlider();
-  speed_slider_->SetDisplayType(FloatSlider::kPercentage);
-  connect(speed_slider_, &FloatSlider::ValueChanged, this, &SpeedDurationDialog::SpeedChanged);
-  layout->addWidget(speed_slider_, row, 1);
+    int row = 0;
 
-  row++;
+    speed_layout->addWidget(new QLabel(tr("Speed:")), row, 0);
 
-  layout->addWidget(new QLabel(tr("Duration:")), row, 0);
+    speed_slider_ = new FloatSlider();
+    speed_slider_->SetDisplayType(FloatSlider::kPercentage);
+    connect(speed_slider_, &FloatSlider::ValueChanged, this, &SpeedDurationDialog::SpeedChanged);
+    speed_layout->addWidget(speed_slider_, row, 1);
 
-  dur_slider_ = new RationalSlider();
-  dur_slider_->SetTimebase(timebase);
-  dur_slider_->SetDisplayType(RationalSlider::kTime);
-  connect(dur_slider_, &RationalSlider::ValueChanged, this, &SpeedDurationDialog::DurationChanged);
-  layout->addWidget(dur_slider_, row, 1);
+    row++;
 
-  row++;
+    speed_layout->addWidget(new QLabel(tr("Duration:")), row, 0);
 
-  link_box_ = new QCheckBox(tr("Link Speed and Duration"));
-  link_box_->setChecked(true);
-  layout->addWidget(link_box_, row, 0, 1, 2);
+    dur_slider_ = new RationalSlider();
+    dur_slider_->SetTimebase(timebase);
+    dur_slider_->SetDisplayType(RationalSlider::kTime);
+    connect(dur_slider_, &RationalSlider::ValueChanged, this, &SpeedDurationDialog::DurationChanged);
+    speed_layout->addWidget(dur_slider_, row, 1);
 
-  row++;
+    row++;
+
+    link_box_ = new QCheckBox(tr("Link Speed and Duration"));
+    link_box_->setChecked(true);
+    speed_layout->addWidget(link_box_, row, 0, 1, 2);
+  }
+
+  reverse_box_ = new QCheckBox(tr("Reverse"));
+  layout->addWidget(reverse_box_);
+
+  maintain_audio_pitch_box_ = new QCheckBox(tr("Maintain Audio Pitch"));
+  layout->addWidget(maintain_audio_pitch_box_);
 
   ripple_box_ = new QCheckBox(tr("Ripple Trailing Clips"));
-  layout->addWidget(ripple_box_, row, 0, 1, 2);
-
-  row++;
+  layout->addWidget(ripple_box_);
 
   QDialogButtonBox *btns = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
   btns->setCenterButtons(true);
   connect(btns, &QDialogButtonBox::accepted, this, &SpeedDurationDialog::accept);
   connect(btns, &QDialogButtonBox::rejected, this, &SpeedDurationDialog::reject);
-  layout->addWidget(btns, row, 0, 1, 2);
+  layout->addWidget(btns);
 
   // Determine which speed value to use
   start_speed_ = clips.first()->speed();
   start_duration_ = clips.first()->length();
+  start_reverse_ = clips.first()->reverse();
+  start_maintain_audio_pitch_ = clips.first()->maintain_audio_pitch();
   for (int i=1; i<clips.size(); i++) {
-    if (!qIsNaN(start_speed_) && !qFuzzyCompare(start_speed_, clips.at(i)->speed())) {
+    ClipBlock *c = clips.at(i);
+
+    if (!qIsNaN(start_speed_) && !qFuzzyCompare(start_speed_, c->speed())) {
       // Speed differs per clip
       start_speed_ = qSNaN();
     }
 
-    if (start_duration_ != -1 && clips.at(i)->length() != start_duration_) {
+    if (start_duration_ != -1 && c->length() != start_duration_) {
       start_duration_ = -1;
     }
+
+    // Yes, in theory a bool should only ever be 0 or 1 anyway, but MSVC complained and it is
+    // *possible* that a bool could be something else, so this code is safer
+    int clip_reverse = c->reverse() ? 1 : 0;
+    int clip_maintain_pitch = c->maintain_audio_pitch() ? 1 : 0;
+    if (start_reverse_ != -1 && clip_reverse != start_reverse_) {
+      start_reverse_ = -1;
+    }
+    if (start_maintain_audio_pitch_ != -1 && clip_maintain_pitch != start_maintain_audio_pitch_) {
+      start_maintain_audio_pitch_ = -1;
+    }
   }
 
   if (qIsNaN(start_speed_)) {
@@ -104,6 +129,18 @@ SpeedDurationDialog::SpeedDurationDialog(const QVector<ClipBlock *> &clips, cons
   } else {
     dur_slider_->SetValue(start_duration_);
   }
+
+  if (start_reverse_ == -1) {
+    reverse_box_->setTristate();
+  } else {
+    reverse_box_->setChecked(start_reverse_);
+  }
+
+  if (start_maintain_audio_pitch_ == -1) {
+    maintain_audio_pitch_box_->setTristate();
+  } else {
+    maintain_audio_pitch_box_->setChecked(start_maintain_audio_pitch_);
+  }
 }
 
 void SpeedDurationDialog::accept()
@@ -133,6 +170,20 @@ void SpeedDurationDialog::accept()
     }
   }
 
+  // Set reverse values
+  if (!reverse_box_->isTristate()) {
+    foreach (ClipBlock *c, clips_) {
+      command->add_child(new NodeParamSetStandardValueCommand(NodeKeyframeTrackReference(NodeInput(c, ClipBlock::kReverseInput)), reverse_box_->isChecked()));
+    }
+  }
+
+  // Set reverse values
+  if (!maintain_audio_pitch_box_->isTristate()) {
+    foreach (ClipBlock *c, clips_) {
+      command->add_child(new NodeParamSetStandardValueCommand(NodeKeyframeTrackReference(NodeInput(c, ClipBlock::kMaintainAudioPitchInput)), maintain_audio_pitch_box_->isChecked()));
+    }
+  }
+
   // Set duration values
   foreach (ClipBlock *c, clips_) {
     rational proposed_length = c->length();
diff --git a/app/dialog/speedduration/speeddurationdialog.h b/app/dialog/speedduration/speeddurationdialog.h
index 135f77434..be24ec9d6 100644
--- a/app/dialog/speedduration/speeddurationdialog.h
+++ b/app/dialog/speedduration/speeddurationdialog.h
@@ -56,8 +56,16 @@ private:
 
   QCheckBox *link_box_;
 
+  QCheckBox *reverse_box_;
+
+  QCheckBox *maintain_audio_pitch_box_;
+
   QCheckBox *ripple_box_;
 
+  int start_reverse_;
+
+  int start_maintain_audio_pitch_;
+
   double start_speed_;
 
   rational start_duration_;
diff --git a/app/node/block/clip/clip.cpp b/app/node/block/clip/clip.cpp
index d966098a0..efd46e316 100644
--- a/app/node/block/clip/clip.cpp
+++ b/app/node/block/clip/clip.cpp
@@ -33,6 +33,7 @@ const QString ClipBlock::kBufferIn = QStringLiteral("buffer_in");
 const QString ClipBlock::kMediaInInput = QStringLiteral("media_in_in");
 const QString ClipBlock::kSpeedInput = QStringLiteral("speed_in");
 const QString ClipBlock::kReverseInput = QStringLiteral("reverse_in");
+const QString ClipBlock::kMaintainAudioPitchInput = QStringLiteral("maintain_audio_pitch_in");
 
 ClipBlock::ClipBlock() :
   in_transition_(nullptr),
@@ -52,6 +53,8 @@ ClipBlock::ClipBlock() :
   AddInput(kReverseInput, NodeValue::kBoolean, false, InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable));
   IgnoreHashingFrom(kReverseInput);
 
+  AddInput(kMaintainAudioPitchInput, NodeValue::kBoolean, false, InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable));
+
   PrependInput(kBufferIn, NodeValue::kNone, InputFlags(kInputFlagNotKeyframable));
   SetValueHintForInput(kBufferIn, ValueHint(NodeValue::kBuffer));
 }
diff --git a/app/node/block/clip/clip.h b/app/node/block/clip/clip.h
index ee8eef2e8..82350d89f 100644
--- a/app/node/block/clip/clip.h
+++ b/app/node/block/clip/clip.h
@@ -71,6 +71,21 @@ public:
     return GetStandardValue(kReverseInput).toBool();
   }
 
+  void set_reverse(bool e)
+  {
+    SetStandardValue(kReverseInput, e);
+  }
+
+  bool maintain_audio_pitch() const
+  {
+    return GetStandardValue(kMaintainAudioPitchInput).toBool();
+  }
+
+  void set_maintain_audio_pitch(bool e)
+  {
+    SetStandardValue(kMaintainAudioPitchInput, e);
+  }
+
   TransitionBlock* in_transition()
   {
     return in_transition_;
@@ -110,6 +125,7 @@ public:
   static const QString kMediaInInput;
   static const QString kSpeedInput;
   static const QString kReverseInput;
+  static const QString kMaintainAudioPitchInput;
 
 protected:
   virtual void LinkChangeEvent() override;
diff --git a/app/node/distort/CMakeLists.txt b/app/node/distort/CMakeLists.txt
index 2962e21ca..375232ccc 100644
--- a/app/node/distort/CMakeLists.txt
+++ b/app/node/distort/CMakeLists.txt
@@ -14,6 +14,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+add_subdirectory(cornerpin)
 add_subdirectory(crop)
 add_subdirectory(flip)
 add_subdirectory(transform)
diff --git a/app/node/distort/cornerpin/CMakeLists.txt b/app/node/distort/cornerpin/CMakeLists.txt
new file mode 100644
index 000000000..e89b0f94f
--- /dev/null
+++ b/app/node/distort/cornerpin/CMakeLists.txt
@@ -0,0 +1,22 @@
+# 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/>.
+
+set(OLIVE_SOURCES
+  ${OLIVE_SOURCES}
+  node/distort/cornerpin/cornerpindistortnode.cpp
+  node/distort/cornerpin/cornerpindistortnode.h
+  PARENT_SCOPE
+)
diff --git a/app/node/distort/cornerpin/cornerpindistortnode.cpp b/app/node/distort/cornerpin/cornerpindistortnode.cpp
new file mode 100644
index 000000000..b14909fe7
--- /dev/null
+++ b/app/node/distort/cornerpin/cornerpindistortnode.cpp
@@ -0,0 +1,226 @@
+/***
+
+  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 "cornerpindistortnode.h"
+
+#include "common/lerp.h"
+#include "core.h"
+#include "widget/slider/floatslider.h"
+
+namespace olive {
+
+const QString CornerPinDistortNode::kTextureInput = QStringLiteral("tex_in");
+const QString CornerPinDistortNode::kTopLeftInput = QStringLiteral("top_left_in");
+const QString CornerPinDistortNode::kTopRightInput = QStringLiteral("top_right_in");
+const QString CornerPinDistortNode::kBottomRightInput = QStringLiteral("bottom_right_in");
+const QString CornerPinDistortNode::kBottomLeftInput = QStringLiteral("bottom_left_in");
+const QString CornerPinDistortNode::kPerspectiveInput = QStringLiteral("perspective_in");
+
+CornerPinDistortNode::CornerPinDistortNode()
+{
+  AddInput(kTextureInput, NodeValue::kTexture, InputFlags(kInputFlagNotKeyframable));
+  AddInput(kPerspectiveInput, NodeValue::kBoolean, true);
+  AddInput(kTopLeftInput, NodeValue::kVec2, QVector2D(0.0, 0.0));
+  AddInput(kTopRightInput, NodeValue::kVec2, QVector2D(0.0, 0.0));
+  AddInput(kBottomRightInput, NodeValue::kVec2, QVector2D(0.0, 0.0));
+  AddInput(kBottomLeftInput, NodeValue::kVec2, QVector2D(0.0, 0.0));
+}
+
+void CornerPinDistortNode::Retranslate()
+{
+  SetInputName(kTextureInput, tr("Texture"));
+  SetInputName(kPerspectiveInput, tr("Perspective"));
+  SetInputName(kTopLeftInput, tr("Top Left"));
+  SetInputName(kTopRightInput, tr("Top Right"));
+  SetInputName(kBottomRightInput, tr("Bottom Right"));
+  SetInputName(kBottomLeftInput, tr("Bottom Left"));
+}
+
+void CornerPinDistortNode::Value(const NodeValueRow &value, const NodeGlobals &globals, NodeValueTable *table) const
+{
+  ShaderJob job;
+  job.InsertValue(value);
+  job.SetAlphaChannelRequired(GenerateJob::kAlphaForceOn);
+  job.InsertValue(QStringLiteral("resolution_in"), NodeValue(NodeValue::kVec2, globals.resolution(), this));
+
+  // Convert slider values to their pixel values and then convert to clip space (-1.0 ... 1.0) for overriding the
+  // vertex coordinates.
+  const QVector2D &resolution = globals.resolution();
+  QVector2D half_resolution = resolution * 0.5;
+  QVector2D top_left = QVector2D(ValueToPixel(0, value, resolution)) / half_resolution - QVector2D(1.0, 1.0);
+  QVector2D top_right = QVector2D(ValueToPixel(1, value, resolution)) / half_resolution - QVector2D(1.0, 1.0);
+  QVector2D bottom_right = QVector2D(ValueToPixel(2, value, resolution)) / half_resolution - QVector2D(1.0, 1.0);
+  QVector2D bottom_left = QVector2D(ValueToPixel(3, value, resolution)) / half_resolution - QVector2D(1.0, 1.0);
+
+  // Override default vertex coordinates.
+  QVector<float> adjusted_vertices = {top_left.x(), top_left.y(), 0.0f,
+                                  top_right.x(), top_right.y(), 0.0f,
+                                  bottom_right.x(),  bottom_right.y(), 0.0f,
+
+                                  top_left.x(), top_left.y(), 0.0f,
+                                  bottom_left.x(),  bottom_left.y(), 0.0f,
+                                  bottom_right.x(),  bottom_right.y(), 0.0f};
+  job.SetVertexCoordinates(adjusted_vertices);
+
+  // If no texture do nothing
+  if (!job.GetValue(kTextureInput).data().isNull()) {
+    // In the special case that all sliders are in their default position just
+    // push the texture.
+    if (!(job.GetValue(kTopLeftInput).data().value<QVector2D>().isNull()
+        && job.GetValue(kTopRightInput).data().value<QVector2D>().isNull() &&
+        job.GetValue(kBottomRightInput).data().value<QVector2D>().isNull() &&
+        job.GetValue(kBottomLeftInput).data().value<QVector2D>().isNull())) {
+      table->Push(NodeValue::kShaderJob, QVariant::fromValue(job), this);
+    } else {
+      table->Push(NodeValue::kTexture, job.GetValue(kTextureInput).data(), this);
+    }
+  }
+}
+
+ShaderCode CornerPinDistortNode::GetShaderCode(const QString &shader_id) const
+{
+  Q_UNUSED(shader_id)
+  QString frag = FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/cornerpin.frag"));
+  QString vert = FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/cornerpin.vert"));
+
+  // HACK: No good, very bad hack
+#ifndef Q_OS_MAC
+  frag.prepend(QStringLiteral("#version 130\n\n"));
+  vert.prepend(QStringLiteral("#version 130\n\n"));
+#else
+  vert.prepend(QStringLiteral("#extension GL_EXT_gpu_shader4 : require\n\n"));
+#endif
+
+  return ShaderCode(frag, vert);
+}
+
+QPointF CornerPinDistortNode::ValueToPixel(int value, const NodeValueRow& row, const QVector2D &resolution) const
+{
+  Q_ASSERT(value >= 0 && value <= 3);
+  switch (value) {
+    case 0: // Top left
+      return QPointF(row[kTopLeftInput].data().value<QVector2D>().x(),
+                     row[kTopLeftInput].data().value<QVector2D>().y());
+      break;
+    case 1: // Top right
+      return QPointF(resolution.x() + row[kTopRightInput].data().value<QVector2D>().x(),
+                     row[kTopRightInput].data().value<QVector2D>().y());
+      break;
+    case 2: // Bottom right
+      return QPointF(resolution.x() + row[kBottomRightInput].data().value<QVector2D>().x(),
+                     resolution.y() + row[kBottomRightInput].data().value<QVector2D>().y());
+      break;
+    case 3: //Bottom left
+      return QPointF(row[kBottomLeftInput].data().value<QVector2D>().x(),
+                     row[kBottomLeftInput].data().value<QVector2D>().y() + resolution.y());
+      break;
+    default: // We should never get here
+      return QPointF();
+  }
+}
+
+void CornerPinDistortNode::DrawGizmos(const NodeValueRow &row, const NodeGlobals &globals, QPainter *p)
+{
+  const QVector2D &resolution = globals.resolution();
+
+  const double handle_radius = GetGizmoHandleRadius(p->transform());
+
+  p->setPen(QPen(Qt::white, 0));
+
+  QPointF top_left = ValueToPixel(0, row, resolution);
+  QPointF top_right = ValueToPixel(1, row, resolution);
+  QPointF bottom_right = ValueToPixel(2, row, resolution);
+  QPointF bottom_left = ValueToPixel(3, row, resolution);
+
+  // Add the correct offset to each slider
+  SetInputProperty(kTopLeftInput, QStringLiteral("offset"), QVector2D(0.0, 0.0));
+  SetInputProperty(kTopRightInput, QStringLiteral("offset"), QVector2D(resolution.x() , 0.0));
+  SetInputProperty(kBottomRightInput, QStringLiteral("offset"), resolution);
+  SetInputProperty(kBottomLeftInput, QStringLiteral("offset"), QVector2D(0.0, resolution.y()));
+
+  // Draw bounding box
+  p->drawLine(QLineF(top_left, top_right));
+  p->drawLine(QLineF(top_right, bottom_right));
+  p->drawLine(QLineF(bottom_right, bottom_left));
+  p->drawLine(QLineF(bottom_left, top_left));
+
+  // Create handles
+  gizmo_resize_handle_[0] = CreateGizmoHandleRect(top_left, handle_radius);
+  gizmo_resize_handle_[1] = CreateGizmoHandleRect(top_right, handle_radius);
+  gizmo_resize_handle_[2] = CreateGizmoHandleRect(bottom_right, handle_radius);
+  gizmo_resize_handle_[3] = CreateGizmoHandleRect(bottom_left, handle_radius);
+
+  // Draw handles
+  DrawAndExpandGizmoHandles(p, handle_radius, gizmo_resize_handle_, kGizmoCornerCount);
+}
+
+bool CornerPinDistortNode::GizmoPress(const NodeValueRow &row, const NodeGlobals &globals, const QPointF &p)
+{
+  bool gizmo_active[kGizmoCornerCount] = {false};
+
+  for (int i = 0; i < kGizmoCornerCount; i++) {
+    gizmo_active[i] = gizmo_resize_handle_[i].contains(p);
+
+    if (gizmo_active[i]) {
+      gizmo_drag_start_ = p;
+      gizmo_res_ = globals.resolution();
+      gizmo_drag_ = i;
+      return true;
+    }
+  }
+
+  return false;
+}
+
+void CornerPinDistortNode::GizmoMove(const QPointF &p, const rational &time, const Qt::KeyboardModifiers &modifiers)
+{
+  if (gizmo_dragger_.isEmpty()) {
+    gizmo_dragger_.resize(2);
+    if (gizmo_drag_ == 0) {
+      gizmo_dragger_[0].Start(NodeKeyframeTrackReference(NodeInput(this, kTopLeftInput), 0), time);
+      gizmo_dragger_[1].Start(NodeKeyframeTrackReference(NodeInput(this, kTopLeftInput), 1), time);
+    }
+    if (gizmo_drag_ == 1) {
+      gizmo_dragger_[0].Start(NodeKeyframeTrackReference(NodeInput(this, kTopRightInput), 0), time);
+      gizmo_dragger_[1].Start(NodeKeyframeTrackReference(NodeInput(this, kTopRightInput), 1), time);
+    }
+    if (gizmo_drag_ == 2) {
+      gizmo_dragger_[0].Start(NodeKeyframeTrackReference(NodeInput(this, kBottomRightInput), 0), time);
+      gizmo_dragger_[1].Start(NodeKeyframeTrackReference(NodeInput(this, kBottomRightInput), 1), time);
+    }
+    if (gizmo_drag_ == 3) {
+      gizmo_dragger_[0].Start(NodeKeyframeTrackReference(NodeInput(this, kBottomLeftInput), 0), time);
+      gizmo_dragger_[1].Start(NodeKeyframeTrackReference(NodeInput(this, kBottomLeftInput), 1), time);
+    }
+  }
+
+  QPointF diff = p - gizmo_drag_start_;
+  gizmo_dragger_[0].Drag(gizmo_dragger_[0].GetStartValue().toDouble() + diff.x());
+  gizmo_dragger_[1].Drag(gizmo_dragger_[1].GetStartValue().toDouble() + diff.y());
+}
+
+void CornerPinDistortNode::GizmoRelease(MultiUndoCommand *command) {
+  for (NodeInputDragger &i : gizmo_dragger_) {
+    i.End(command);
+  }
+  gizmo_dragger_.clear();
+}
+
+}
diff --git a/app/node/distort/cornerpin/cornerpindistortnode.h b/app/node/distort/cornerpin/cornerpindistortnode.h
new file mode 100644
index 000000000..6261d7e1a
--- /dev/null
+++ b/app/node/distort/cornerpin/cornerpindistortnode.h
@@ -0,0 +1,109 @@
+/***
+
+  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/>.
+
+***/
+
+#ifndef CORNERPINDISTORTNODE_H
+#define CORNERPINDISTORTNODE_H
+
+#include <QVector2D>
+
+#include "node/inputdragger.h"
+#include "node/node.h"
+
+namespace olive {
+class CornerPinDistortNode : public Node
+{
+  Q_OBJECT
+public:
+  CornerPinDistortNode();
+
+  NODE_DEFAULT_DESTRUCTOR(CornerPinDistortNode)
+
+  virtual Node* copy() const override
+  {
+    return new CornerPinDistortNode();
+  }
+
+  virtual QString Name() const override
+  {
+    return tr("Corner Pin");
+  }
+
+  virtual QString id() const override
+  {
+    return QStringLiteral("org.olivevideoeditor.Olive.cornerpin");
+  }
+
+  virtual QVector<CategoryID> Category() const override
+  {
+    return {kCategoryDistort};
+  }
+
+  virtual QString Description() const override
+  {
+    return tr("Distort the image by dragging the corners.");
+  }
+
+  virtual void Retranslate() override;
+
+  virtual void Value(const NodeValueRow& value, const NodeGlobals &globals, NodeValueTable *table) const override;
+
+  virtual ShaderCode GetShaderCode(const QString &shader_id) const override;
+
+  virtual bool HasGizmos() const override
+  {
+    return true;
+  }
+
+  virtual void DrawGizmos(const NodeValueRow& row, const NodeGlobals &globals, QPainter *p) override;
+
+  virtual bool GizmoPress(const NodeValueRow& row, const NodeGlobals &globals, const QPointF &p) override;
+  virtual void GizmoMove(const QPointF &p, const rational &time, const Qt::KeyboardModifiers &modifiers) override;
+  virtual void GizmoRelease(MultiUndoCommand *command) override;
+
+  /**
+   * @brief Convenience function - converts the 2D slider values from being
+   * an offset to the actual pixel value.
+   */
+  QPointF ValueToPixel(int value, const NodeValueRow &row, const QVector2D &resolution) const;
+
+  static const QString kTextureInput;
+  static const QString kPerspectiveInput;
+  static const QString kTopLeftInput;
+  static const QString kTopRightInput;
+  static const QString kBottomRightInput;
+  static const QString kBottomLeftInput;
+
+private:
+  // Gizmo variables
+  static const int kGizmoCornerCount = 4;
+  QRectF gizmo_resize_handle_[kGizmoCornerCount];
+  QRectF gizmo_whole_rect_;
+
+  int gizmo_drag_;
+  QVector<NodeInputDragger> gizmo_dragger_;
+  QPointF gizmo_drag_start_;
+  QVector2D gizmo_res_;
+
+};
+
+}
+
+
+#endif // CORNERPINDISTORTNODE_H
diff --git a/app/node/factory.cpp b/app/node/factory.cpp
index ef6d262f0..f2dd7934c 100644
--- a/app/node/factory.cpp
+++ b/app/node/factory.cpp
@@ -30,6 +30,7 @@
 #include "block/transition/crossdissolve/crossdissolvetransition.h"
 #include "block/transition/diptocolor/diptocolortransition.h"
 #include "color/displaytransform/displaytransform.h"
+#include "distort/cornerpin/cornerpindistortnode.h"
 #include "distort/crop/cropdistortnode.h"
 #include "distort/flip/flipdistortnode.h"
 #include "distort/transform/transformdistortnode.h"
@@ -54,6 +55,7 @@
 #include "project/folder/folder.h"
 #include "project/footage/footage.h"
 #include "project/sequence/sequence.h"
+#include "time/timeoffset/timeoffsetnode.h"
 #include "time/timeremap/timeremap.h"
 
 namespace olive {
@@ -262,6 +264,10 @@ Node *NodeFactory::CreateFromFactoryIndex(const NodeFactory::InternalID &id)
     return new FlipDistortNode();
   case kNoiseGenerator:
     return new NoiseGeneratorNode();
+  case kTimeOffsetNode:
+    return new TimeOffsetNode();
+  case kCornerPinDistort:
+    return new CornerPinDistortNode();
   case kDisplayTransform:
     return new DisplayTransformNode();
 
diff --git a/app/node/factory.h b/app/node/factory.h
index e7cca6a1e..58e2673a9 100644
--- a/app/node/factory.h
+++ b/app/node/factory.h
@@ -65,6 +65,8 @@ public:
     kOpacityEffect,
     kFlipDistort,
     kNoiseGenerator,
+    kTimeOffsetNode,
+    kCornerPinDistort,
     kDisplayTransform,
 
     // Count value
diff --git a/app/node/time/CMakeLists.txt b/app/node/time/CMakeLists.txt
index bd780b985..a038672fb 100644
--- a/app/node/time/CMakeLists.txt
+++ b/app/node/time/CMakeLists.txt
@@ -14,6 +14,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+add_subdirectory(timeoffset)
 add_subdirectory(timeremap)
 
 set(OLIVE_SOURCES
diff --git a/app/node/time/timeoffset/CMakeLists.txt b/app/node/time/timeoffset/CMakeLists.txt
new file mode 100644
index 000000000..b3976d54b
--- /dev/null
+++ b/app/node/time/timeoffset/CMakeLists.txt
@@ -0,0 +1,22 @@
+# 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/>.
+
+set(OLIVE_SOURCES
+  ${OLIVE_SOURCES}
+  node/time/timeoffset/timeoffsetnode.cpp
+  node/time/timeoffset/timeoffsetnode.h
+  PARENT_SCOPE
+)
diff --git a/app/node/time/timeoffset/timeoffsetnode.cpp b/app/node/time/timeoffset/timeoffsetnode.cpp
new file mode 100644
index 000000000..d137847ee
--- /dev/null
+++ b/app/node/time/timeoffset/timeoffsetnode.cpp
@@ -0,0 +1,91 @@
+/***
+
+  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 "timeoffsetnode.h"
+
+#include "widget/slider/rationalslider.h"
+
+namespace olive {
+
+const QString TimeOffsetNode::kTimeInput = QStringLiteral("time_in");
+const QString TimeOffsetNode::kInputInput = QStringLiteral("input_in");
+
+#define super Node
+
+TimeOffsetNode::TimeOffsetNode()
+{
+  AddInput(kTimeInput, NodeValue::kRational, QVariant::fromValue(rational(0)), InputFlags(kInputFlagNotConnectable));
+  SetInputProperty(kTimeInput, QStringLiteral("view"), RationalSlider::kTime);
+  SetInputProperty(kTimeInput, QStringLiteral("viewlock"), true);
+  IgnoreHashingFrom(kTimeInput);
+
+  AddInput(kInputInput, NodeValue::kNone, InputFlags(kInputFlagNotKeyframable));
+}
+
+void TimeOffsetNode::Retranslate()
+{
+  SetInputName(kTimeInput, QStringLiteral("Time"));
+  SetInputName(kInputInput, QStringLiteral("Input"));
+}
+
+TimeRange TimeOffsetNode::InputTimeAdjustment(const QString &input, int element, const TimeRange &input_time) const
+{
+  if (input == kInputInput) {
+    return TimeRange(GetRemappedTime(input_time.in()), GetRemappedTime(input_time.out()));
+  } else {
+    return super::InputTimeAdjustment(input, element, input_time);
+  }
+}
+
+TimeRange TimeOffsetNode::OutputTimeAdjustment(const QString &input, int element, const TimeRange &input_time) const
+{
+  /*if (input == kInputInput) {
+    rational target_time = GetValueAtTime(kTimeInput, input_time.in()).value<rational>();
+
+    return TimeRange(target_time, target_time + input_time.length());
+  } else {
+    return super::OutputTimeAdjustment(input, element, input_time);
+  }*/
+  return super::OutputTimeAdjustment(input, element, input_time);
+}
+
+void TimeOffsetNode::Value(const NodeValueRow &value, const NodeGlobals &globals, NodeValueTable *table) const
+{
+  table->Push(value[kInputInput]);
+}
+
+void TimeOffsetNode::Hash(QCryptographicHash &hash, const NodeGlobals &globals, const VideoParams &video_params) const
+{
+  // Don't hash anything of our own, just pass-through to the connected node at the remapped tmie
+  if (IsInputConnected(kInputInput)) {
+    Node *out = GetConnectedOutput(kInputInput);
+
+    NodeGlobals new_globals = globals;
+    new_globals.set_time(TimeRange(GetRemappedTime(globals.time().in()), GetRemappedTime(globals.time().out())));
+    Node::Hash(out, GetValueHintForInput(kInputInput), hash, new_globals, video_params);
+  }
+}
+
+rational TimeOffsetNode::GetRemappedTime(const rational &input) const
+{
+  return input + GetValueAtTime(kTimeInput, input).value<rational>();
+}
+
+}
diff --git a/app/node/time/timeoffset/timeoffsetnode.h b/app/node/time/timeoffset/timeoffsetnode.h
new file mode 100644
index 000000000..aa712891f
--- /dev/null
+++ b/app/node/time/timeoffset/timeoffsetnode.h
@@ -0,0 +1,76 @@
+/***
+
+  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/>.
+
+***/
+
+#ifndef TIMEOFFSETNODE_H
+#define TIMEOFFSETNODE_H
+
+#include "node/node.h"
+
+namespace olive {
+
+class TimeOffsetNode : public Node
+{
+public:
+  TimeOffsetNode();
+
+  NODE_DEFAULT_DESTRUCTOR(TimeOffsetNode)
+  NODE_COPY_FUNCTION(TimeOffsetNode)
+
+  virtual QString Name() const override
+  {
+    return tr("Time Offset");
+  }
+
+  virtual QString id() const override
+  {
+    return QStringLiteral("org.olivevideoeditor.Olive.timeoffset");
+  }
+
+  virtual QVector<CategoryID> Category() const override
+  {
+    return {kCategoryGeneral};
+  }
+
+  virtual QString Description() const override
+  {
+    return tr("Offset time passing through the graph.");
+  }
+
+  virtual TimeRange InputTimeAdjustment(const QString& input, int element, const TimeRange& input_time) const override;
+  virtual TimeRange OutputTimeAdjustment(const QString& input, int element, const TimeRange& input_time) const override;
+
+  virtual void Retranslate() override;
+
+  virtual void Value(const NodeValueRow& value, const NodeGlobals &globals, NodeValueTable *table) const override;
+
+  static const QString kTimeInput;
+  static const QString kInputInput;
+
+protected:
+  virtual void Hash(QCryptographicHash &hash, const NodeGlobals &globals, const VideoParams& video_params) const override;
+
+private:
+  rational GetRemappedTime(const rational& input) const;
+
+};
+
+}
+
+#endif // TIMEOFFSETNODE_H
diff --git a/app/render/audioparams.h b/app/render/audioparams.h
index bb9e86b3b..bf2e6f08b 100644
--- a/app/render/audioparams.h
+++ b/app/render/audioparams.h
@@ -21,6 +21,10 @@
 #ifndef AUDIOPARAMS_H
 #define AUDIOPARAMS_H
 
+extern "C" {
+#include <libavutil/channel_layout.h>
+}
+
 #include <QtMath>
 #include <QXmlStreamReader>
 #include <QXmlStreamWriter>
diff --git a/app/render/job/shaderjob.h b/app/render/job/shaderjob.h
index ba5ad1427..335d442b5 100644
--- a/app/render/job/shaderjob.h
+++ b/app/render/job/shaderjob.h
@@ -22,6 +22,7 @@
 #define SHADERJOB_H
 
 #include <QMatrix4x4>
+#include <QVector>
 
 #include "generatejob.h"
 #include "render/colorprocessor.h"
@@ -119,7 +120,15 @@ public:
     shader_desc_ = shader_desc;
   }
 
+  void SetVertexCoordinates(const QVector<float> &vertex_coords)
+  {
+    vertex_overrides_ = vertex_coords;
+  }
 
+  const QVector<float>& GetVertexCoordinates()
+  {
+    return vertex_overrides_;
+  }
 
 private:
   QString shader_id_;
@@ -133,7 +142,10 @@ private:
   bool use_ocio_;
 
   ColorProcessorPtr color_processor_;
+  
   OCIO::GpuShaderDescRcPtr shader_desc_;
+  
+  QVector<float> vertex_overrides_;
 
 };
 
diff --git a/app/render/opengl/openglrenderer.cpp b/app/render/opengl/openglrenderer.cpp
index 37e43e88d..7aa0955cb 100644
--- a/app/render/opengl/openglrenderer.cpp
+++ b/app/render/opengl/openglrenderer.cpp
@@ -569,7 +569,13 @@ void OpenGLRenderer::Blit(QVariant s, ShaderJob job, Texture *destination, Video
   QOpenGLBuffer vert_vbo_;
   vert_vbo_.create();
   vert_vbo_.bind();
-  vert_vbo_.allocate(blit_vertices.constData(), blit_vertices.size() * sizeof(GLfloat));
+  // If the job has vertex coordinate overrides use them instead of the defaults.
+  if (!job.GetVertexCoordinates().isEmpty()) {
+    Q_ASSERT(job.GetVertexCoordinates().size() == 18);
+    vert_vbo_.allocate(job.GetVertexCoordinates().constData(), job.GetVertexCoordinates().size() * sizeof(float));
+  } else {
+    vert_vbo_.allocate(blit_vertices.constData(), blit_vertices.size() * sizeof(GLfloat));
+  }
   vert_vbo_.release();
 
   QOpenGLBuffer frag_vbo_;
@@ -886,7 +892,11 @@ GLuint OpenGLRenderer::CompileShader(GLenum type, const QString &code)
       QStringLiteral("#version 120\n\n");
 #endif
 
-  QString complete_code = shader_preamble;
+  QString complete_code;
+
+  if (!code.startsWith(QStringLiteral("#version"))) {
+    complete_code = shader_preamble;
+  }
 
   if (code.isEmpty()) {
     // Use default code
diff --git a/app/render/renderprocessor.cpp b/app/render/renderprocessor.cpp
index fc6c04456..1769393c2 100644
--- a/app/render/renderprocessor.cpp
+++ b/app/render/renderprocessor.cpp
@@ -25,6 +25,9 @@
 #include <QVector3D>
 #include <QVector4D>
 
+#include "audio/packedprocessor.h"
+#include "audio/planarprocessor.h"
+#include "audio/tempoprocessor.h"
 #include "node/block/clip/clip.h"
 #include "node/block/transition/transition.h"
 #include "node/project/project.h"
@@ -288,8 +291,35 @@ NodeValueTable RenderProcessor::GenerateBlockTable(const Track *track, const Tim
               // Just silence, don't think there's any other practical application of 0 speed audio
               samples_from_this_block->silence();
             } else if (!qFuzzyCompare(speed_value, 1.0)) {
-              // Multiply time
-              samples_from_this_block->speed(speed_value);
+              if (clip_cast->maintain_audio_pitch()) {
+                PackedProcessor packer;
+                packer.Open(samples_from_this_block->audio_params());
+
+                QByteArray packed = packer.Convert(samples_from_this_block);
+
+                if (!packed.isEmpty()) {
+                  TempoProcessor tp;
+                  tp.Open(samples_from_this_block->audio_params(), speed_value);
+
+                  // FIXME: This is not the best way to do this, the TempoProcessor works best
+                  //        when it's given a continuous stream of audio, which is challenging
+                  //        in our current "modular" audio system. This should still work reasonably
+                  //        well on export (assuming audio is all generated at once on export), but
+                  //        users may hear clicks and pops in the audio during preview due to this
+                  //        approach.
+                  tp.Push(packed);
+                  tp.Flush();
+                  packed = tp.Pull();
+                  tp.Close();
+
+                  PlanarProcessor planar;
+                  planar.Open(samples_from_this_block->audio_params());
+                  samples_from_this_block = planar.Convert(packed);
+                }
+              } else {
+                // Multiply time
+                samples_from_this_block->speed(speed_value);
+              }
             }
 
             if (reversed) {
diff --git a/app/shaders/cornerpin.frag b/app/shaders/cornerpin.frag
new file mode 100644
index 000000000..7dd7e3306
--- /dev/null
+++ b/app/shaders/cornerpin.frag
@@ -0,0 +1,48 @@
+// Input texture
+uniform sampler2D ove_maintex;
+uniform sampler2D tex_in;
+uniform bool perspective_in;
+
+// Input texture coordinate
+varying vec2 ove_texcoord;
+
+varying vec2 q;
+varying vec2 b1;
+varying vec2 b2;
+varying vec2 b3;
+
+float Wedge2D(vec2 v, vec2 w) {
+	return (v.x*w.y) - (v.y*w.x);
+}
+
+void main() {
+    if(perspective_in){
+        gl_FragColor = texture2D(tex_in, ove_texcoord);
+    } else {
+	    float A = Wedge2D(b2, b3);
+		float B = Wedge2D(b3, q) - Wedge2D(b1, b2);
+		float C = Wedge2D(b1, q);
+
+		vec2 uv;
+
+		// solve for v
+		if (abs(A) < 0.001) {
+			uv.y = -C/B;
+		} else {
+			float discrim = B*B - 4.0*A*C;
+			uv.y = 0.5 * (-B + sqrt(discrim)) / A;
+		}
+
+		// solve for u
+		vec2 denom = b1 + uv.y * b3;
+		if (abs(denom.x) > abs(denom.y)) {
+			uv.x = (q.x - b2.x * uv.y) / denom.x;
+		} else {
+			uv.x = (q.y - b2.y * uv.y) / denom.y;
+		}
+
+		uv.y = 1.0 - uv.y;
+
+		gl_FragColor = texture2D(tex_in, uv);
+	}
+}
diff --git a/app/shaders/cornerpin.vert b/app/shaders/cornerpin.vert
new file mode 100644
index 000000000..1eadf95fe
--- /dev/null
+++ b/app/shaders/cornerpin.vert
@@ -0,0 +1,99 @@
+uniform bool perspective_in;
+uniform vec2 top_left_in;
+uniform vec2 top_right_in;
+uniform vec2 bottom_left_in;
+uniform vec2 bottom_right_in;
+
+uniform vec2 resolution_in;
+
+uniform mat4 ove_mvpmat;
+
+attribute vec4 a_position;
+attribute vec2 a_texcoord;
+
+varying vec2 ove_texcoord;
+
+varying vec2 q;
+varying vec2 b1;
+varying vec2 b2;
+varying vec2 b3;
+
+void main() {
+    // The slider inputs only contain the amount they have changed rather than
+    // their pixel locations so we adjust them here.
+    vec2 t_l = top_left_in;
+    vec2 t_r = top_right_in + vec2(resolution_in.x, 0.0);
+    vec2 b_r = bottom_right_in + resolution_in;
+    vec2 b_l = bottom_left_in + vec2(0.0, resolution_in.y);
+
+    gl_Position = ove_mvpmat * a_position;
+
+    if (perspective_in){
+        // Find the center of the quadrilateral by finding where the two diagonals intersect.
+        // https://www.reedbeta.com/blog/quadrilateral-interpolation-part-1/
+
+        // Here we calculate the gradient and constant (y = mx + c) for each diagonal.
+        float m1 = (t_r.y - b_l.y)/(t_r.x - b_l.x);
+        float c1 = b_l.y - m1 * b_l.x;
+        float m2 = (b_r.y - t_l.y)/(b_r.x - t_l.x);
+        float c2 = t_l.y - m2 * t_l.x;
+    
+        // Find the intersection by setting the two line equations equal and rearrange.
+        float mid_x = (c2 - c1) / (m1 - m2);
+        float mid_y = m1 * mid_x + c1;
+
+        // Find the distance from each corner to our center point
+        float d0 = length(vec2(mid_x - b_l.x, mid_y - b_l.y));
+        float d1 = length(vec2(b_r.x - mid_x, mid_y - b_r.y));
+        float d2 = length(vec2(t_r.x - mid_x, t_r.y - mid_y));
+        float d3 = length(vec2(mid_x - t_l.x, t_l.y - mid_y));
+
+        float q  = 1.0;
+
+        /*
+        Vertex IDs (aspect ratio irrelevant):
+             0_____1
+            3|\    |
+             | \   |
+             |  \  |
+             |   \ |
+             |____\|2
+             4     5
+        */
+
+        if (gl_VertexID == 0 || gl_VertexID == 3) {
+            q = (d1+d3)/d3;
+        } else if (gl_VertexID == 1) {
+            q = (d0+d2)/d2;
+        } else if (gl_VertexID == 2 || gl_VertexID == 5) {
+            q = (d3+d1)/d1;
+        } else {
+            q = (d2+d0)/d0;
+        }
+    
+        gl_Position[0] *= q;
+        gl_Position[1] *= q;
+        gl_Position[3] = q;
+    } else{
+        // https://www.reedbeta.com/blog/quadrilateral-interpolation-part-2/
+        vec2 pos;
+
+        if (gl_VertexID == 0 || gl_VertexID == 3) { // top left
+            pos = t_l;
+        } else if (gl_VertexID == 1) { // top right
+            pos = t_r;
+        } else if (gl_VertexID == 2 || gl_VertexID == 5) { // bottom right
+            pos = b_r;
+        } else if (gl_VertexID == 4) { // bottom left
+            pos = b_l;
+        }
+
+        q = pos - b_l;
+        b1 = b_r - b_l;
+        b2 = t_l - b_l;
+        b3 = b_l - b_r - t_l + t_r;
+    }
+    
+
+    ove_texcoord = a_texcoord;
+}
diff --git a/app/ts/es_ES.ts b/app/ts/es_ES.ts
index c28761a8e..71bce4706 100644
--- a/app/ts/es_ES.ts
+++ b/app/ts/es_ES.ts
@@ -4883,7 +4883,7 @@ y salida.</translation>
     <message>
         <location filename="../widget/viewer/viewer.cpp" line="928"/>
         <source>On</source>
-        <translation>Avtivado</translation>
+        <translation>Activado</translation>
     </message>
     <message>
         <location filename="../widget/viewer/viewer.cpp" line="933"/>
diff --git a/app/ts/zh_CN.ts b/app/ts/zh_CN.ts
old mode 100755
new mode 100644
diff --git a/app/ts/zh_TW.ts b/app/ts/zh_TW.ts
old mode 100755
new mode 100644
diff --git a/app/widget/slider/base/sliderbase.cpp b/app/widget/slider/base/sliderbase.cpp
index 116a61c71..7ca14d1f0 100644
--- a/app/widget/slider/base/sliderbase.cpp
+++ b/app/widget/slider/base/sliderbase.cpp
@@ -104,7 +104,17 @@ void SliderBase::changeEvent(QEvent *e)
 
 void SliderBase::UpdateLabel()
 {
-  label_->setText(tristate_ ? tr("---") : GetFormattedValueToString());
+  QString s;
+
+  if (tristate_) {
+    s = tr("---");
+  } else if (label_substitutions_.contains(GetValueInternal())) {
+    s = label_substitutions_.value(GetValueInternal());
+  } else {
+    s = GetFormattedValueToString();
+  }
+
+  label_->setText(s);
 }
 
 QVariant SliderBase::AdjustValue(const QVariant &value) const
diff --git a/app/widget/slider/base/sliderbase.h b/app/widget/slider/base/sliderbase.h
index 2643ca674..64d4ed2f4 100644
--- a/app/widget/slider/base/sliderbase.h
+++ b/app/widget/slider/base/sliderbase.h
@@ -49,6 +49,12 @@ public:
 
   QString GetFormattedValueToString(const QVariant& v) const;
 
+  void InsertLabelSubstitution(const QVariant &value, const QString &label)
+  {
+    label_substitutions_.insert(value, label);
+    UpdateLabel();
+  }
+
 public slots:
   void ShowEditor();
 
@@ -92,6 +98,8 @@ private:
 
   bool format_plural_;
 
+  QMap<QVariant, QString> label_substitutions_;
+
 private slots:
   void LineEditConfirmed();
 
diff --git a/app/widget/viewer/viewer.cpp b/app/widget/viewer/viewer.cpp
index d8827a7c0..206fe9719 100644
--- a/app/widget/viewer/viewer.cpp
+++ b/app/widget/viewer/viewer.cpp
@@ -466,11 +466,8 @@ void ViewerWidget::ReceivedAudioBufferForPlayback()
 
         // If the tempo must be adjusted, adjust now
         if (tempo_processor_.IsOpen()) {
-          tempo_processor_.Push(pack.data(), pack.size());
-          int actual = tempo_processor_.Pull(pack.data(), pack.size());
-          if (actual != pack.size()) {
-            pack.resize(actual);
-          }
+          tempo_processor_.Push(pack);
+          pack = tempo_processor_.Pull();
         }
 
         // TempoProcessor may have emptied the array