[fbsync] Style fixes (#1766)

Applies style fixes identified in fbcode.

torchaudio/csrc/pybind/sox/effects.cpp

@@ -4,8 +4,7 @@
 
 using namespace torchaudio::sox_utils;
 
-namespace torchaudio {
-namespace sox_effects {
+namespace torchaudio::sox_effects {
 
 // Streaming decoding over file-like object is tricky because libsox operates on
 // FILE pointer. The folloing is what `sox` and `play` commands do
@@ -28,12 +27,12 @@ namespace sox_effects {
 //    fileobj. This will trick libsox as if it keeps reading from the FILE*
 //    continuously.
 // For Step 2. see `fileobj_input_drain` function in effects_chain.cpp
-std::tuple<torch::Tensor, int64_t> apply_effects_fileobj(
+auto apply_effects_fileobj(
     py::object fileobj,
-    std::vector<std::vector<std::string>> effects,
+    const std::vector<std::vector<std::string>>& effects,
     c10::optional<bool> normalize,
     c10::optional<bool> channels_first,
-    c10::optional<std::string> format) {
+    c10::optional<std::string> format) -> std::tuple<torch::Tensor, int64_t> {
   // Prepare the buffer used throughout the lifecycle of SoxEffectChain.
   //
   // For certain format (such as FLAC), libsox keeps reading the content at
@@ -115,5 +114,4 @@ std::tuple<torch::Tensor, int64_t> apply_effects_fileobj(
       tensor, static_cast<int64_t>(chain.getOutputSampleRate()));
 }
 
-} // namespace sox_effects
-} // namespace torchaudio
+} // namespace torchaudio::sox_effects

torchaudio/csrc/pybind/sox/effects.h

@@ -3,17 +3,15 @@
 
 #include <torch/extension.h>
 
-namespace torchaudio {
-namespace sox_effects {
+namespace torchaudio::sox_effects {
 
-std::tuple<torch::Tensor, int64_t> apply_effects_fileobj(
+auto apply_effects_fileobj(
     py::object fileobj,
-    std::vector<std::vector<std::string>> effects,
+    const std::vector<std::vector<std::string>>& effects,
     c10::optional<bool> normalize,
     c10::optional<bool> channels_first,
-    c10::optional<std::string> format);
+    c10::optional<std::string> format) -> std::tuple<torch::Tensor, int64_t>;
 
-} // namespace sox_effects
-} // namespace torchaudio
+} // namespace torchaudio::sox_effects
 
 #endif

torchaudio/csrc/pybind/sox/effects_chain.cpp

@@ -4,8 +4,7 @@
 
 using namespace torchaudio::sox_utils;
 
-namespace torchaudio {
-namespace sox_effects_chain {
+namespace torchaudio::sox_effects_chain {
 
 namespace {
 
@@ -27,7 +26,8 @@ struct FileObjOutputPriv {
 
 /// Callback function to feed byte string
 /// https://github.com/dmkrepo/libsox/blob/b9dd1a86e71bbd62221904e3e59dfaa9e5e72046/src/sox.h#L1268-L1278
-int fileobj_input_drain(sox_effect_t* effp, sox_sample_t* obuf, size_t* osamp) {
+auto fileobj_input_drain(sox_effect_t* effp, sox_sample_t* obuf, size_t* osamp)
+    -> int {
   auto priv = static_cast<FileObjInputPriv*>(effp->priv);
   auto sf = priv->sf;
   auto buffer = priv->buffer;
@@ -115,12 +115,12 @@ int fileobj_input_drain(sox_effect_t* effp, sox_sample_t* obuf, size_t* osamp) {
   return (priv->eof_reached && !*osamp) ? SOX_EOF : SOX_SUCCESS;
 }
 
-int fileobj_output_flow(
+auto fileobj_output_flow(
     sox_effect_t* effp,
     sox_sample_t const* ibuf,
     sox_sample_t* obuf LSX_UNUSED,
     size_t* isamp,
-    size_t* osamp) {
+    size_t* osamp) -> int {
   *osamp = 0;
   if (*isamp) {
     auto priv = static_cast<FileObjOutputPriv*>(effp->priv);
@@ -128,7 +128,6 @@ int fileobj_output_flow(
     auto fp = static_cast<FILE*>(sf->fp);
     auto fileobj = priv->fileobj;
     auto buffer = priv->buffer;
-    auto buffer_size = priv->buffer_size;
 
     // Encode chunk
     auto num_samples_written = sox_write(sf, ibuf, *isamp);
@@ -154,32 +153,32 @@ int fileobj_output_flow(
   return SOX_SUCCESS;
 }
 
-sox_effect_handler_t* get_fileobj_input_handler() {
+auto get_fileobj_input_handler() -> sox_effect_handler_t* {
   static sox_effect_handler_t handler{
       /*name=*/"input_fileobj_object",
-      /*usage=*/NULL,
+      /*usage=*/nullptr,
       /*flags=*/SOX_EFF_MCHAN,
-      /*getopts=*/NULL,
-      /*start=*/NULL,
-      /*flow=*/NULL,
+      /*getopts=*/nullptr,
+      /*start=*/nullptr,
+      /*flow=*/nullptr,
       /*drain=*/fileobj_input_drain,
-      /*stop=*/NULL,
-      /*kill=*/NULL,
+      /*stop=*/nullptr,
+      /*kill=*/nullptr,
       /*priv_size=*/sizeof(FileObjInputPriv)};
   return &handler;
 }
 
-sox_effect_handler_t* get_fileobj_output_handler() {
+auto get_fileobj_output_handler() -> sox_effect_handler_t* {
   static sox_effect_handler_t handler{
       /*name=*/"output_fileobj_object",
-      /*usage=*/NULL,
+      /*usage=*/nullptr,
       /*flags=*/SOX_EFF_MCHAN,
-      /*getopts=*/NULL,
-      /*start=*/NULL,
+      /*getopts=*/nullptr,
+      /*start=*/nullptr,
       /*flow=*/fileobj_output_flow,
-      /*drain=*/NULL,
-      /*stop=*/NULL,
-      /*kill=*/NULL,
+      /*drain=*/nullptr,
+      /*stop=*/nullptr,
+      /*kill=*/nullptr,
       /*priv_size=*/sizeof(FileObjOutputPriv)};
   return &handler;
 }
@@ -225,5 +224,4 @@ void SoxEffectsChainPyBind::addOutputFileObj(
   }
 }
 
-} // namespace sox_effects_chain
-} // namespace torchaudio
+} // namespace torchaudio::sox_effects_chain

torchaudio/csrc/pybind/sox/effects_chain.h

@@ -4,8 +4,7 @@
 #include <torch/extension.h>
 #include <torchaudio/csrc/sox/effects_chain.h>
 
-namespace torchaudio {
-namespace sox_effects_chain {
+namespace torchaudio::sox_effects_chain {
 
 class SoxEffectsChainPyBind : public SoxEffectsChain {
   using SoxEffectsChain::SoxEffectsChain;
@@ -24,7 +23,6 @@ class SoxEffectsChainPyBind : public SoxEffectsChain {
       py::object* fileobj);
 };
 
-} // namespace sox_effects_chain
-} // namespace torchaudio
+} // namespace torchaudio::sox_effects_chain
 
 #endif

torchaudio/csrc/pybind/sox/io.cpp

@@ -5,14 +5,14 @@
 #include <torchaudio/csrc/sox/io.h>
 #include <torchaudio/csrc/sox/types.h>
 
+#include <utility>
+
 using namespace torchaudio::sox_utils;
 
-namespace torchaudio {
-namespace sox_io {
+namespace torchaudio::sox_io {
 
-std::tuple<int64_t, int64_t, int64_t, int64_t, std::string> get_info_fileobj(
-    py::object fileobj,
-    c10::optional<std::string> format) {
+auto get_info_fileobj(py::object fileobj, c10::optional<std::string> format)
+    -> std::tuple<int64_t, int64_t, int64_t, int64_t, std::string> {
   // Prepare in-memory file object
   // When libsox opens a file, it also reads the header.
   // When opening a file there are two functions that might touch FILE* (and the
@@ -71,16 +71,20 @@ std::tuple<int64_t, int64_t, int64_t, int64_t, std::string> get_info_fileobj(
       get_encoding(sf->encoding.encoding));
 }
 
-std::tuple<torch::Tensor, int64_t> load_audio_fileobj(
+auto load_audio_fileobj(
     py::object fileobj,
     c10::optional<int64_t> frame_offset,
     c10::optional<int64_t> num_frames,
     c10::optional<bool> normalize,
     c10::optional<bool> channels_first,
-    c10::optional<std::string> format) {
+    c10::optional<std::string> format) -> std::tuple<torch::Tensor, int64_t> {
   auto effects = get_effects(frame_offset, num_frames);
   return torchaudio::sox_effects::apply_effects_fileobj(
-      fileobj, effects, normalize, channels_first, format);
+      std::move(fileobj),
+      effects,
+      normalize,
+      channels_first,
+      std::move(format));
 }
 
 namespace {
@@ -94,8 +98,8 @@ struct AutoReleaseBuffer {
   AutoReleaseBuffer() : ptr(nullptr), size(0) {}
   AutoReleaseBuffer(const AutoReleaseBuffer& other) = delete;
   AutoReleaseBuffer(AutoReleaseBuffer&& other) = delete;
-  AutoReleaseBuffer& operator=(const AutoReleaseBuffer& other) = delete;
-  AutoReleaseBuffer& operator=(AutoReleaseBuffer&& other) = delete;
+  auto operator=(const AutoReleaseBuffer& other) -> AutoReleaseBuffer& = delete;
+  auto operator=(AutoReleaseBuffer&& other) -> AutoReleaseBuffer& = delete;
   ~AutoReleaseBuffer() {
     if (ptr) {
       free(ptr);
@@ -148,7 +152,11 @@ void save_audio_fileobj(
   const auto signal_info =
       get_signalinfo(&tensor, sample_rate, filetype, channels_first);
   const auto encoding_info = get_encodinginfo_for_save(
-      filetype, tensor.dtype(), compression, encoding, bits_per_sample);
+      filetype,
+      tensor.dtype(),
+      compression,
+      std::move(encoding),
+      bits_per_sample);
 
   AutoReleaseBuffer buffer;
 
@@ -179,5 +187,4 @@ void save_audio_fileobj(
   fileobj.attr("write")(py::bytes(buffer.ptr, buffer.size));
 }
 
-} // namespace sox_io
-} // namespace torchaudio
+} // namespace torchaudio::sox_io

torchaudio/csrc/pybind/sox/io.h

@@ -3,20 +3,18 @@
 
 #include <torch/extension.h>
 
-namespace torchaudio {
-namespace sox_io {
+namespace torchaudio::sox_io {
 
-std::tuple<int64_t, int64_t, int64_t, int64_t, std::string> get_info_fileobj(
-    py::object fileobj,
-    c10::optional<std::string> format);
+auto get_info_fileobj(py::object fileobj, c10::optional<std::string> format)
+    -> std::tuple<int64_t, int64_t, int64_t, int64_t, std::string>;
 
-std::tuple<torch::Tensor, int64_t> load_audio_fileobj(
+auto load_audio_fileobj(
     py::object fileobj,
     c10::optional<int64_t> frame_offset,
     c10::optional<int64_t> num_frames,
     c10::optional<bool> normalize,
     c10::optional<bool> channels_first,
-    c10::optional<std::string> format);
+    c10::optional<std::string> format) -> std::tuple<torch::Tensor, int64_t>;
 
 void save_audio_fileobj(
     py::object fileobj,
@@ -28,7 +26,6 @@ void save_audio_fileobj(
     c10::optional<std::string> encoding,
     c10::optional<int64_t> bits_per_sample);
 
-} // namespace sox_io
-} // namespace torchaudio
+} // namespace torchaudio::sox_io
 
 #endif

torchaudio/csrc/pybind/sox/utils.cpp

 #include <torchaudio/csrc/pybind/sox/utils.h>
 
-namespace torchaudio {
-namespace sox_utils {
+namespace torchaudio::sox_utils {
 
-uint64_t read_fileobj(py::object* fileobj, const uint64_t size, char* buffer) {
+auto read_fileobj(py::object* fileobj, const uint64_t size, char* buffer)
+    -> uint64_t {
   uint64_t num_read = 0;
   while (num_read < size) {
     auto request = size - num_read;
@@ -28,5 +28,4 @@ uint64_t read_fileobj(py::object* fileobj, const uint64_t size, char* buffer) {
   return num_read;
 }
 
-} // namespace sox_utils
-} // namespace torchaudio
+} // namespace torchaudio::sox_utils

torchaudio/csrc/pybind/sox/utils.h

@@ -3,12 +3,10 @@
 
 #include <torch/extension.h>
 
-namespace torchaudio {
-namespace sox_utils {
+namespace torchaudio::sox_utils {
 
-uint64_t read_fileobj(py::object* fileobj, uint64_t size, char* buffer);
+auto read_fileobj(py::object* fileobj, uint64_t size, char* buffer) -> uint64_t;
 
-} // namespace sox_utils
-} // namespace torchaudio
+} // namespace torchaudio::sox_utils
 
 #endif

torchaudio/csrc/sox/effects.cpp

@@ -5,8 +5,7 @@
 
 using namespace torchaudio::sox_utils;
 
-namespace torchaudio {
-namespace sox_effects {
+namespace torchaudio::sox_effects {
 
 namespace {
 
@@ -25,6 +24,7 @@ void initialize_sox_effects() {
         throw std::runtime_error("Failed to initialize sox effects.");
       };
       SOX_RESOURCE_STATE = Initialized;
+      break;
     case Initialized:
       break;
     case ShutDown:
@@ -45,16 +45,17 @@ void shutdown_sox_effects() {
         throw std::runtime_error("Failed to initialize sox effects.");
       };
       SOX_RESOURCE_STATE = ShutDown;
+      break;
     case ShutDown:
       break;
   }
 }
 
-std::tuple<torch::Tensor, int64_t> apply_effects_tensor(
+auto apply_effects_tensor(
     torch::Tensor waveform,
     int64_t sample_rate,
-    std::vector<std::vector<std::string>> effects,
-    bool channels_first) {
+    const std::vector<std::vector<std::string>>& effects,
+    bool channels_first) -> std::tuple<torch::Tensor, int64_t> {
   validate_input_tensor(waveform);
 
   // Create SoxEffectsChain
@@ -81,19 +82,20 @@ std::tuple<torch::Tensor, int64_t> apply_effects_tensor(
       /*num_samples=*/out_buffer.size(),
       /*num_channels=*/chain.getOutputNumChannels(),
       dtype,
-      /*noramlize=*/false,
+      /*normalize=*/false,
       channels_first);
 
   return std::tuple<torch::Tensor, int64_t>(
       out_tensor, chain.getOutputSampleRate());
 }
 
-std::tuple<torch::Tensor, int64_t> apply_effects_file(
-    const std::string path,
-    std::vector<std::vector<std::string>> effects,
+auto apply_effects_file(
+    const std::string& path,
+    const std::vector<std::vector<std::string>>& effects,
     c10::optional<bool> normalize,
     c10::optional<bool> channels_first,
-    const c10::optional<std::string>& format) {
+    const c10::optional<std::string>& format)
+    -> std::tuple<torch::Tensor, int64_t> {
   // Open input file
   SoxFormat sf(sox_open_read(
       path.c_str(),
@@ -150,5 +152,4 @@ TORCH_LIBRARY_FRAGMENT(torchaudio, m) {
       &torchaudio::sox_effects::apply_effects_file);
 }
 
-} // namespace sox_effects
-} // namespace torchaudio
+} // namespace torchaudio::sox_effects

torchaudio/csrc/sox/effects.h

@@ -4,27 +4,26 @@
 #include <torch/script.h>
 #include <torchaudio/csrc/sox/utils.h>
 
-namespace torchaudio {
-namespace sox_effects {
+namespace torchaudio::sox_effects {
 
 void initialize_sox_effects();
 
 void shutdown_sox_effects();
 
-std::tuple<torch::Tensor, int64_t> apply_effects_tensor(
+auto apply_effects_tensor(
     torch::Tensor waveform,
     int64_t sample_rate,
-    std::vector<std::vector<std::string>> effects,
-    bool channels_first);
+    const std::vector<std::vector<std::string>>& effects,
+    bool channels_first) -> std::tuple<torch::Tensor, int64_t>;
 
-std::tuple<torch::Tensor, int64_t> apply_effects_file(
-    const std::string path,
-    std::vector<std::vector<std::string>> effects,
+auto apply_effects_file(
+    const std::string& path,
+    const std::vector<std::vector<std::string>>& effects,
     c10::optional<bool> normalize,
     c10::optional<bool> channels_first,
-    const c10::optional<std::string>& format);
+    const c10::optional<std::string>& format)
+    -> std::tuple<torch::Tensor, int64_t>;
 
-} // namespace sox_effects
-} // namespace torchaudio
+} // namespace torchaudio::sox_effects
 
 #endif

torchaudio/csrc/sox/effects_chain.cpp

@@ -185,7 +185,7 @@ SoxEffect::operator sox_effect_t*() const {
   return se_;
 }
 
-sox_effect_t* SoxEffect::operator->() noexcept {
+auto SoxEffect::operator->() noexcept -> sox_effect_t* {
   return se_;
 }
 

torchaudio/csrc/sox/effects_chain.h

@@ -14,11 +14,11 @@ struct SoxEffect {
   explicit SoxEffect(sox_effect_t* se) noexcept;
   SoxEffect(const SoxEffect& other) = delete;
   SoxEffect(const SoxEffect&& other) = delete;
-  SoxEffect& operator=(const SoxEffect& other) = delete;
-  SoxEffect& operator=(SoxEffect&& other) = delete;
+  auto operator=(const SoxEffect& other) -> SoxEffect& = delete;
+  auto operator=(SoxEffect&& other) -> SoxEffect& = delete;
   ~SoxEffect();
   operator sox_effect_t*() const;
-  sox_effect_t* operator->() noexcept;
+  auto operator->() noexcept -> sox_effect_t*;
 
  private:
   sox_effect_t* se_;

torchaudio/csrc/sox/io.h

@@ -7,9 +7,10 @@
 namespace torchaudio {
 namespace sox_io {
 
-std::vector<std::vector<std::string>> get_effects(
+auto get_effects(
     const c10::optional<int64_t>& frame_offset,
-    const c10::optional<int64_t>& num_frames);
+    const c10::optional<int64_t>& num_frames)
+    -> std::vector<std::vector<std::string>>;
 
 std::tuple<int64_t, int64_t, int64_t, int64_t, std::string> get_info_file(
     const std::string& path,