remove cuda header from Encoder.cpp

Author: Dan-Flores

src/torchcodec/_core/Encoder.cpp

@@ -6,7 +6,6 @@
 
 extern "C" {
 #include <libavutil/hwcontext.h>
-#include <libavutil/hwcontext_cuda.h>
 #include <libavutil/opt.h>
 #include <libavutil/pixdesc.h>
 }

src/torchcodec/_core/custom_ops.cpp

@@ -415,7 +415,6 @@ void _add_video_stream(
   }
 
   validateDeviceInterface(std::string(device), std::string(device_variant));
-
   videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.deviceVariant = device_variant;
 
@@ -648,11 +647,10 @@ void encode_video_to_file(
     std::optional<std::string_view> preset = std::nullopt,
     std::optional<std::vector<std::string>> extra_options = std::nullopt) {
   VideoStreamOptions videoStreamOptions;
+  videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.codec = std::move(codec);
   videoStreamOptions.pixelFormat = std::move(pixel_format);
   videoStreamOptions.crf = crf;
-
-  videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.preset = preset;
 
   if (extra_options.has_value()) {
@@ -680,11 +678,10 @@ at::Tensor encode_video_to_tensor(
     std::optional<std::vector<std::string>> extra_options = std::nullopt) {
   auto avioContextHolder = std::make_unique<AVIOToTensorContext>();
   VideoStreamOptions videoStreamOptions;
+  videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.codec = std::move(codec);
   videoStreamOptions.pixelFormat = std::move(pixel_format);
   videoStreamOptions.crf = crf;
-
-  videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.preset = preset;
 
   if (extra_options.has_value()) {
@@ -719,10 +716,10 @@ void _encode_video_to_file_like(
   std::unique_ptr<AVIOFileLikeContext> avioContextHolder(fileLikeContext);
 
   VideoStreamOptions videoStreamOptions;
+  videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.codec = std::move(codec);
   videoStreamOptions.pixelFormat = std::move(pixel_format);
   videoStreamOptions.crf = crf;
-  videoStreamOptions.device = torch::Device(std::string(device));
   videoStreamOptions.preset = preset;
 
   if (extra_options.has_value()) {