diff --git a/modules/gpucodec/include/opencv2/gpucodec.hpp b/modules/gpucodec/include/opencv2/gpucodec.hpp
index f2e298fd70..0439487c5c 100644
--- a/modules/gpucodec/include/opencv2/gpucodec.hpp
+++ b/modules/gpucodec/include/opencv2/gpucodec.hpp
@@ -50,7 +50,7 @@
 
 #include "opencv2/core/gpu.hpp"
 
-namespace cv { namespace gpucodec {
+namespace cv { namespace cudacodec {
 
 ////////////////////////////////// Video Encoding //////////////////////////////////
 
@@ -201,6 +201,6 @@ public:
 CV_EXPORTS Ptr<VideoReader> createVideoReader(const String& filename);
 CV_EXPORTS Ptr<VideoReader> createVideoReader(const Ptr<RawVideoSource>& source);
 
-}} // namespace cv { namespace gpucodec {
+}} // namespace cv { namespace cudacodec {
 
 #endif /* __OPENCV_GPUCODEC_HPP__ */
diff --git a/modules/gpucodec/perf/perf_video.cpp b/modules/gpucodec/perf/perf_video.cpp
index 6e60ed7dcc..39d85d8813 100644
--- a/modules/gpucodec/perf/perf_video.cpp
+++ b/modules/gpucodec/perf/perf_video.cpp
@@ -75,7 +75,7 @@ PERF_TEST_P(FileName, VideoReader, Values("gpu/video/768x576.avi", "gpu/video/19
 
     if (PERF_RUN_GPU())
     {
-        cv::Ptr<cv::gpucodec::VideoReader> d_reader = cv::gpucodec::createVideoReader(inputFile);
+        cv::Ptr<cv::cudacodec::VideoReader> d_reader = cv::cudacodec::createVideoReader(inputFile);
 
         cv::cuda::GpuMat frame;
 
@@ -119,7 +119,7 @@ PERF_TEST_P(FileName, VideoWriter, Values("gpu/video/768x576.avi", "gpu/video/19
 
     if (PERF_RUN_GPU())
     {
-        cv::Ptr<cv::gpucodec::VideoWriter> d_writer;
+        cv::Ptr<cv::cudacodec::VideoWriter> d_writer;
 
         cv::cuda::GpuMat d_frame;
 
@@ -131,7 +131,7 @@ PERF_TEST_P(FileName, VideoWriter, Values("gpu/video/768x576.avi", "gpu/video/19
             d_frame.upload(frame);
 
             if (d_writer.empty())
-                d_writer = cv::gpucodec::createVideoWriter(outputFile, frame.size(), FPS);
+                d_writer = cv::cudacodec::createVideoWriter(outputFile, frame.size(), FPS);
 
             startTimer(); next();
             d_writer->write(d_frame);
diff --git a/modules/gpucodec/src/cuvid_video_source.cpp b/modules/gpucodec/src/cuvid_video_source.cpp
index 477951e931..fd6eac72de 100644
--- a/modules/gpucodec/src/cuvid_video_source.cpp
+++ b/modules/gpucodec/src/cuvid_video_source.cpp
@@ -46,10 +46,10 @@
 #ifdef HAVE_NVCUVID
 
 using namespace cv;
-using namespace cv::gpucodec;
-using namespace cv::gpucodec::detail;
+using namespace cv::cudacodec;
+using namespace cv::cudacodec::detail;
 
-cv::gpucodec::detail::CuvidVideoSource::CuvidVideoSource(const String& fname)
+cv::cudacodec::detail::CuvidVideoSource::CuvidVideoSource(const String& fname)
 {
     CUVIDSOURCEPARAMS params;
     std::memset(&params, 0, sizeof(CUVIDSOURCEPARAMS));
@@ -74,37 +74,37 @@ cv::gpucodec::detail::CuvidVideoSource::CuvidVideoSource(const String& fname)
     format_.height = vidfmt.coded_height;
 }
 
-cv::gpucodec::detail::CuvidVideoSource::~CuvidVideoSource()
+cv::cudacodec::detail::CuvidVideoSource::~CuvidVideoSource()
 {
     cuvidDestroyVideoSource(videoSource_);
 }
 
-FormatInfo cv::gpucodec::detail::CuvidVideoSource::format() const
+FormatInfo cv::cudacodec::detail::CuvidVideoSource::format() const
 {
     return format_;
 }
 
-void cv::gpucodec::detail::CuvidVideoSource::start()
+void cv::cudacodec::detail::CuvidVideoSource::start()
 {
     cuSafeCall( cuvidSetVideoSourceState(videoSource_, cudaVideoState_Started) );
 }
 
-void cv::gpucodec::detail::CuvidVideoSource::stop()
+void cv::cudacodec::detail::CuvidVideoSource::stop()
 {
     cuSafeCall( cuvidSetVideoSourceState(videoSource_, cudaVideoState_Stopped) );
 }
 
-bool cv::gpucodec::detail::CuvidVideoSource::isStarted() const
+bool cv::cudacodec::detail::CuvidVideoSource::isStarted() const
 {
     return (cuvidGetVideoSourceState(videoSource_) == cudaVideoState_Started);
 }
 
-bool cv::gpucodec::detail::CuvidVideoSource::hasError() const
+bool cv::cudacodec::detail::CuvidVideoSource::hasError() const
 {
     return (cuvidGetVideoSourceState(videoSource_) == cudaVideoState_Error);
 }
 
-int CUDAAPI cv::gpucodec::detail::CuvidVideoSource::HandleVideoData(void* userData, CUVIDSOURCEDATAPACKET* packet)
+int CUDAAPI cv::cudacodec::detail::CuvidVideoSource::HandleVideoData(void* userData, CUVIDSOURCEDATAPACKET* packet)
 {
     CuvidVideoSource* thiz = static_cast<CuvidVideoSource*>(userData);
 
diff --git a/modules/gpucodec/src/cuvid_video_source.hpp b/modules/gpucodec/src/cuvid_video_source.hpp
index c2f0e2f571..65f5526bf5 100644
--- a/modules/gpucodec/src/cuvid_video_source.hpp
+++ b/modules/gpucodec/src/cuvid_video_source.hpp
@@ -50,7 +50,7 @@
 #include "opencv2/gpucodec.hpp"
 #include "video_source.hpp"
 
-namespace cv { namespace gpucodec { namespace detail
+namespace cv { namespace cudacodec { namespace detail
 {
 
 class CuvidVideoSource : public VideoSource
diff --git a/modules/gpucodec/src/ffmpeg_video_source.cpp b/modules/gpucodec/src/ffmpeg_video_source.cpp
index 86d1b59313..c98d2c1846 100644
--- a/modules/gpucodec/src/ffmpeg_video_source.cpp
+++ b/modules/gpucodec/src/ffmpeg_video_source.cpp
@@ -46,8 +46,8 @@
 #ifdef HAVE_NVCUVID
 
 using namespace cv;
-using namespace cv::gpucodec;
-using namespace cv::gpucodec::detail;
+using namespace cv::cudacodec;
+using namespace cv::cudacodec::detail;
 
 namespace
 {
@@ -95,7 +95,7 @@ namespace
     }
 }
 
-cv::gpucodec::detail::FFmpegVideoSource::FFmpegVideoSource(const String& fname) :
+cv::cudacodec::detail::FFmpegVideoSource::FFmpegVideoSource(const String& fname) :
     stream_(0)
 {
     CV_Assert( init_MediaStream_FFMPEG() );
@@ -115,18 +115,18 @@ cv::gpucodec::detail::FFmpegVideoSource::FFmpegVideoSource(const String& fname)
     format_.height = height;
 }
 
-cv::gpucodec::detail::FFmpegVideoSource::~FFmpegVideoSource()
+cv::cudacodec::detail::FFmpegVideoSource::~FFmpegVideoSource()
 {
     if (stream_)
         release_InputMediaStream_FFMPEG_p(stream_);
 }
 
-FormatInfo cv::gpucodec::detail::FFmpegVideoSource::format() const
+FormatInfo cv::cudacodec::detail::FFmpegVideoSource::format() const
 {
     return format_;
 }
 
-bool cv::gpucodec::detail::FFmpegVideoSource::getNextPacket(unsigned char** data, int* size, bool* bEndOfFile)
+bool cv::cudacodec::detail::FFmpegVideoSource::getNextPacket(unsigned char** data, int* size, bool* bEndOfFile)
 {
     int endOfFile;
 
diff --git a/modules/gpucodec/src/ffmpeg_video_source.hpp b/modules/gpucodec/src/ffmpeg_video_source.hpp
index 6ea59ddac1..46333bc413 100644
--- a/modules/gpucodec/src/ffmpeg_video_source.hpp
+++ b/modules/gpucodec/src/ffmpeg_video_source.hpp
@@ -48,7 +48,7 @@
 
 struct InputMediaStream_FFMPEG;
 
-namespace cv { namespace gpucodec { namespace detail {
+namespace cv { namespace cudacodec { namespace detail {
 
 class FFmpegVideoSource : public RawVideoSource
 {
diff --git a/modules/gpucodec/src/frame_queue.cpp b/modules/gpucodec/src/frame_queue.cpp
index f9141d84f5..d3c42c902c 100644
--- a/modules/gpucodec/src/frame_queue.cpp
+++ b/modules/gpucodec/src/frame_queue.cpp
@@ -45,7 +45,7 @@
 
 #ifdef HAVE_NVCUVID
 
-cv::gpucodec::detail::FrameQueue::FrameQueue() :
+cv::cudacodec::detail::FrameQueue::FrameQueue() :
     endOfDecode_(0),
     framesInQueue_(0),
     readPosition_(0)
@@ -54,7 +54,7 @@ cv::gpucodec::detail::FrameQueue::FrameQueue() :
     std::memset((void*) isFrameInUse_, 0, sizeof(isFrameInUse_));
 }
 
-bool cv::gpucodec::detail::FrameQueue::waitUntilFrameAvailable(int pictureIndex)
+bool cv::cudacodec::detail::FrameQueue::waitUntilFrameAvailable(int pictureIndex)
 {
     while (isInUse(pictureIndex))
     {
@@ -68,7 +68,7 @@ bool cv::gpucodec::detail::FrameQueue::waitUntilFrameAvailable(int pictureIndex)
     return true;
 }
 
-void cv::gpucodec::detail::FrameQueue::enqueue(const CUVIDPARSERDISPINFO* picParams)
+void cv::cudacodec::detail::FrameQueue::enqueue(const CUVIDPARSERDISPINFO* picParams)
 {
     // Mark the frame as 'in-use' so we don't re-use it for decoding until it is no longer needed
     // for display
@@ -99,7 +99,7 @@ void cv::gpucodec::detail::FrameQueue::enqueue(const CUVIDPARSERDISPINFO* picPar
     } while (!isEndOfDecode());
 }
 
-bool cv::gpucodec::detail::FrameQueue::dequeue(CUVIDPARSERDISPINFO& displayInfo)
+bool cv::cudacodec::detail::FrameQueue::dequeue(CUVIDPARSERDISPINFO& displayInfo)
 {
     AutoLock autoLock(mtx_);
 
diff --git a/modules/gpucodec/src/frame_queue.hpp b/modules/gpucodec/src/frame_queue.hpp
index c3b427b74f..92c88323e4 100644
--- a/modules/gpucodec/src/frame_queue.hpp
+++ b/modules/gpucodec/src/frame_queue.hpp
@@ -49,7 +49,7 @@
 
 #include <nvcuvid.h>
 
-namespace cv { namespace gpucodec { namespace detail
+namespace cv { namespace cudacodec { namespace detail
 {
 
 class FrameQueue
diff --git a/modules/gpucodec/src/thread.cpp b/modules/gpucodec/src/thread.cpp
index b936d8e21a..24e8abd0dd 100644
--- a/modules/gpucodec/src/thread.cpp
+++ b/modules/gpucodec/src/thread.cpp
@@ -45,7 +45,7 @@
 
 #ifdef HAVE_NVCUVID
 
-using namespace cv::gpucodec::detail;
+using namespace cv::cudacodec::detail;
 
 #ifdef WIN32
 
@@ -67,7 +67,7 @@ namespace
     }
 }
 
-class cv::gpucodec::detail::Thread::Impl
+class cv::cudacodec::detail::Thread::Impl
 {
 public:
     Impl(Thread::Func func, void* userData)
@@ -120,7 +120,7 @@ namespace
     }
 }
 
-class cv::gpucodec::detail::Thread::Impl
+class cv::cudacodec::detail::Thread::Impl
 {
 public:
     Impl(Thread::Func func, void* userData)
@@ -148,17 +148,17 @@ private:
 
 #endif
 
-cv::gpucodec::detail::Thread::Thread(Func func, void* userData) :
+cv::cudacodec::detail::Thread::Thread(Func func, void* userData) :
     impl_(new Impl(func, userData))
 {
 }
 
-void cv::gpucodec::detail::Thread::wait()
+void cv::cudacodec::detail::Thread::wait()
 {
     impl_->wait();
 }
 
-void cv::gpucodec::detail::Thread::sleep(int ms)
+void cv::cudacodec::detail::Thread::sleep(int ms)
 {
 #ifdef WIN32
     ::Sleep(ms);
@@ -167,7 +167,7 @@ void cv::gpucodec::detail::Thread::sleep(int ms)
 #endif
 }
 
-template <> void cv::Ptr<cv::gpucodec::detail::Thread::Impl>::delete_obj()
+template <> void cv::Ptr<cv::cudacodec::detail::Thread::Impl>::delete_obj()
 {
     if (obj) delete obj;
 }
diff --git a/modules/gpucodec/src/thread.hpp b/modules/gpucodec/src/thread.hpp
index ccda5b5c7c..67e25dc0cd 100644
--- a/modules/gpucodec/src/thread.hpp
+++ b/modules/gpucodec/src/thread.hpp
@@ -46,7 +46,7 @@
 
 #include "opencv2/core.hpp"
 
-namespace cv { namespace gpucodec { namespace detail {
+namespace cv { namespace cudacodec { namespace detail {
 
 class Thread
 {
@@ -68,7 +68,7 @@ private:
 }}}
 
 namespace cv {
-    template <> void Ptr<cv::gpucodec::detail::Thread::Impl>::delete_obj();
+    template <> void Ptr<cv::cudacodec::detail::Thread::Impl>::delete_obj();
 }
 
 #endif // __THREAD_WRAPPERS_HPP__
diff --git a/modules/gpucodec/src/video_decoder.cpp b/modules/gpucodec/src/video_decoder.cpp
index d734ef363a..35919c3f56 100644
--- a/modules/gpucodec/src/video_decoder.cpp
+++ b/modules/gpucodec/src/video_decoder.cpp
@@ -45,7 +45,7 @@
 
 #ifdef HAVE_NVCUVID
 
-void cv::gpucodec::detail::VideoDecoder::create(const FormatInfo& videoFormat)
+void cv::cudacodec::detail::VideoDecoder::create(const FormatInfo& videoFormat)
 {
     release();
 
@@ -104,7 +104,7 @@ void cv::gpucodec::detail::VideoDecoder::create(const FormatInfo& videoFormat)
     cuSafeCall( cuvidCreateDecoder(&decoder_, &createInfo_) );
 }
 
-void cv::gpucodec::detail::VideoDecoder::release()
+void cv::cudacodec::detail::VideoDecoder::release()
 {
     if (decoder_)
     {
diff --git a/modules/gpucodec/src/video_decoder.hpp b/modules/gpucodec/src/video_decoder.hpp
index 468f6f1e10..90fa50016e 100644
--- a/modules/gpucodec/src/video_decoder.hpp
+++ b/modules/gpucodec/src/video_decoder.hpp
@@ -49,7 +49,7 @@
 #include "opencv2/core/private.gpu.hpp"
 #include "opencv2/gpucodec.hpp"
 
-namespace cv { namespace gpucodec { namespace detail
+namespace cv { namespace cudacodec { namespace detail
 {
 
 class VideoDecoder
diff --git a/modules/gpucodec/src/video_parser.cpp b/modules/gpucodec/src/video_parser.cpp
index 66aab62ad1..737f585118 100644
--- a/modules/gpucodec/src/video_parser.cpp
+++ b/modules/gpucodec/src/video_parser.cpp
@@ -45,7 +45,7 @@
 
 #ifdef HAVE_NVCUVID
 
-cv::gpucodec::detail::VideoParser::VideoParser(VideoDecoder* videoDecoder, FrameQueue* frameQueue) :
+cv::cudacodec::detail::VideoParser::VideoParser(VideoDecoder* videoDecoder, FrameQueue* frameQueue) :
     videoDecoder_(videoDecoder), frameQueue_(frameQueue), unparsedPackets_(0), hasError_(false)
 {
     CUVIDPARSERPARAMS params;
@@ -62,7 +62,7 @@ cv::gpucodec::detail::VideoParser::VideoParser(VideoDecoder* videoDecoder, Frame
     cuSafeCall( cuvidCreateVideoParser(&parser_, &params) );
 }
 
-bool cv::gpucodec::detail::VideoParser::parseVideoData(const unsigned char* data, size_t size, bool endOfStream)
+bool cv::cudacodec::detail::VideoParser::parseVideoData(const unsigned char* data, size_t size, bool endOfStream)
 {
     CUVIDSOURCEDATAPACKET packet;
     std::memset(&packet, 0, sizeof(CUVIDSOURCEDATAPACKET));
@@ -96,7 +96,7 @@ bool cv::gpucodec::detail::VideoParser::parseVideoData(const unsigned char* data
     return !frameQueue_->isEndOfDecode();
 }
 
-int CUDAAPI cv::gpucodec::detail::VideoParser::HandleVideoSequence(void* userData, CUVIDEOFORMAT* format)
+int CUDAAPI cv::cudacodec::detail::VideoParser::HandleVideoSequence(void* userData, CUVIDEOFORMAT* format)
 {
     VideoParser* thiz = static_cast<VideoParser*>(userData);
 
@@ -128,7 +128,7 @@ int CUDAAPI cv::gpucodec::detail::VideoParser::HandleVideoSequence(void* userDat
     return true;
 }
 
-int CUDAAPI cv::gpucodec::detail::VideoParser::HandlePictureDecode(void* userData, CUVIDPICPARAMS* picParams)
+int CUDAAPI cv::cudacodec::detail::VideoParser::HandlePictureDecode(void* userData, CUVIDPICPARAMS* picParams)
 {
     VideoParser* thiz = static_cast<VideoParser*>(userData);
 
@@ -148,7 +148,7 @@ int CUDAAPI cv::gpucodec::detail::VideoParser::HandlePictureDecode(void* userDat
     return true;
 }
 
-int CUDAAPI cv::gpucodec::detail::VideoParser::HandlePictureDisplay(void* userData, CUVIDPARSERDISPINFO* picParams)
+int CUDAAPI cv::cudacodec::detail::VideoParser::HandlePictureDisplay(void* userData, CUVIDPARSERDISPINFO* picParams)
 {
     VideoParser* thiz = static_cast<VideoParser*>(userData);
 
diff --git a/modules/gpucodec/src/video_parser.hpp b/modules/gpucodec/src/video_parser.hpp
index b4dddb3895..96526ea868 100644
--- a/modules/gpucodec/src/video_parser.hpp
+++ b/modules/gpucodec/src/video_parser.hpp
@@ -51,7 +51,7 @@
 #include "frame_queue.hpp"
 #include "video_decoder.hpp"
 
-namespace cv { namespace gpucodec { namespace detail
+namespace cv { namespace cudacodec { namespace detail
 {
 
 class VideoParser
diff --git a/modules/gpucodec/src/video_reader.cpp b/modules/gpucodec/src/video_reader.cpp
index f67833b094..642fdd2375 100644
--- a/modules/gpucodec/src/video_reader.cpp
+++ b/modules/gpucodec/src/video_reader.cpp
@@ -44,12 +44,12 @@
 
 using namespace cv;
 using namespace cv::cuda;
-using namespace cv::gpucodec;
+using namespace cv::cudacodec;
 
 #ifndef HAVE_NVCUVID
 
-Ptr<VideoReader> cv::gpucodec::createVideoReader(const String&) { throw_no_cuda(); return Ptr<VideoReader>(); }
-Ptr<VideoReader> cv::gpucodec::createVideoReader(const Ptr<RawVideoSource>&) { throw_no_cuda(); return Ptr<VideoReader>(); }
+Ptr<VideoReader> cv::cudacodec::createVideoReader(const String&) { throw_no_cuda(); return Ptr<VideoReader>(); }
+Ptr<VideoReader> cv::cudacodec::createVideoReader(const Ptr<RawVideoSource>&) { throw_no_cuda(); return Ptr<VideoReader>(); }
 
 #else // HAVE_NVCUVID
 
@@ -208,7 +208,7 @@ namespace
     }
 }
 
-Ptr<VideoReader> cv::gpucodec::createVideoReader(const String& filename)
+Ptr<VideoReader> cv::cudacodec::createVideoReader(const String& filename)
 {
     CV_Assert( !filename.empty() );
 
@@ -227,7 +227,7 @@ Ptr<VideoReader> cv::gpucodec::createVideoReader(const String& filename)
     return new VideoReaderImpl(videoSource);
 }
 
-Ptr<VideoReader> cv::gpucodec::createVideoReader(const Ptr<RawVideoSource>& source)
+Ptr<VideoReader> cv::cudacodec::createVideoReader(const Ptr<RawVideoSource>& source)
 {
     Ptr<detail::VideoSource> videoSource(new detail::RawVideoSourceWrapper(source));
     return new VideoReaderImpl(videoSource);
diff --git a/modules/gpucodec/src/video_source.cpp b/modules/gpucodec/src/video_source.cpp
index ce6a1bd8c0..be2d79573c 100644
--- a/modules/gpucodec/src/video_source.cpp
+++ b/modules/gpucodec/src/video_source.cpp
@@ -46,50 +46,50 @@
 #ifdef HAVE_NVCUVID
 
 using namespace cv;
-using namespace cv::gpucodec;
-using namespace cv::gpucodec::detail;
+using namespace cv::cudacodec;
+using namespace cv::cudacodec::detail;
 
-bool cv::gpucodec::detail::VideoSource::parseVideoData(const unsigned char* data, size_t size, bool endOfStream)
+bool cv::cudacodec::detail::VideoSource::parseVideoData(const unsigned char* data, size_t size, bool endOfStream)
 {
     return videoParser_->parseVideoData(data, size, endOfStream);
 }
 
-cv::gpucodec::detail::RawVideoSourceWrapper::RawVideoSourceWrapper(const Ptr<RawVideoSource>& source) :
+cv::cudacodec::detail::RawVideoSourceWrapper::RawVideoSourceWrapper(const Ptr<RawVideoSource>& source) :
     source_(source)
 {
     CV_Assert( !source_.empty() );
 }
 
-cv::gpucodec::FormatInfo cv::gpucodec::detail::RawVideoSourceWrapper::format() const
+cv::cudacodec::FormatInfo cv::cudacodec::detail::RawVideoSourceWrapper::format() const
 {
     return source_->format();
 }
 
-void cv::gpucodec::detail::RawVideoSourceWrapper::start()
+void cv::cudacodec::detail::RawVideoSourceWrapper::start()
 {
     stop_ = false;
     hasError_ = false;
     thread_ = new Thread(readLoop, this);
 }
 
-void cv::gpucodec::detail::RawVideoSourceWrapper::stop()
+void cv::cudacodec::detail::RawVideoSourceWrapper::stop()
 {
     stop_ = true;
     thread_->wait();
     thread_.release();
 }
 
-bool cv::gpucodec::detail::RawVideoSourceWrapper::isStarted() const
+bool cv::cudacodec::detail::RawVideoSourceWrapper::isStarted() const
 {
     return !stop_;
 }
 
-bool cv::gpucodec::detail::RawVideoSourceWrapper::hasError() const
+bool cv::cudacodec::detail::RawVideoSourceWrapper::hasError() const
 {
     return hasError_;
 }
 
-void cv::gpucodec::detail::RawVideoSourceWrapper::readLoop(void* userData)
+void cv::cudacodec::detail::RawVideoSourceWrapper::readLoop(void* userData)
 {
     RawVideoSourceWrapper* thiz = static_cast<RawVideoSourceWrapper*>(userData);
 
diff --git a/modules/gpucodec/src/video_source.hpp b/modules/gpucodec/src/video_source.hpp
index b4d930ee09..802424e422 100644
--- a/modules/gpucodec/src/video_source.hpp
+++ b/modules/gpucodec/src/video_source.hpp
@@ -48,7 +48,7 @@
 #include "opencv2/gpucodec.hpp"
 #include "thread.hpp"
 
-namespace cv { namespace gpucodec { namespace detail
+namespace cv { namespace cudacodec { namespace detail
 {
 
 class VideoParser;
diff --git a/modules/gpucodec/src/video_writer.cpp b/modules/gpucodec/src/video_writer.cpp
index a6fe9524cb..c2092c8379 100644
--- a/modules/gpucodec/src/video_writer.cpp
+++ b/modules/gpucodec/src/video_writer.cpp
@@ -45,20 +45,20 @@
 
 using namespace cv;
 using namespace cv::cuda;
-using namespace cv::gpucodec;
+using namespace cv::cudacodec;
 
 #if !defined(HAVE_NVCUVID) || !defined(WIN32)
 
-cv::gpucodec::EncoderParams::EncoderParams() { throw_no_cuda(); }
-cv::gpucodec::EncoderParams::EncoderParams(const String&) { throw_no_cuda(); }
-void cv::gpucodec::EncoderParams::load(const String&) { throw_no_cuda(); }
-void cv::gpucodec::EncoderParams::save(const String&) const { throw_no_cuda(); }
+cv::cudacodec::EncoderParams::EncoderParams() { throw_no_cuda(); }
+cv::cudacodec::EncoderParams::EncoderParams(const String&) { throw_no_cuda(); }
+void cv::cudacodec::EncoderParams::load(const String&) { throw_no_cuda(); }
+void cv::cudacodec::EncoderParams::save(const String&) const { throw_no_cuda(); }
 
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const String&, Size, double, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const String&, Size, double, const EncoderParams&, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const String&, Size, double, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const String&, Size, double, const EncoderParams&, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
 
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const Ptr<EncoderCallBack>&, Size, double, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const Ptr<EncoderCallBack>&, Size, double, const EncoderParams&, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const Ptr<EncoderCallBack>&, Size, double, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const Ptr<EncoderCallBack>&, Size, double, const EncoderParams&, SurfaceFormat) { throw_no_cuda(); return Ptr<VideoWriter>(); }
 
 #else // !defined HAVE_CUDA || !defined WIN32
 
@@ -811,7 +811,7 @@ namespace
 ///////////////////////////////////////////////////////////////////////////
 // EncoderParams
 
-cv::gpucodec::EncoderParams::EncoderParams()
+cv::cudacodec::EncoderParams::EncoderParams()
 {
     P_Interval = 3;
     IDR_Period = 15;
@@ -834,12 +834,12 @@ cv::gpucodec::EncoderParams::EncoderParams()
     DisableSPSPPS = 0;
 }
 
-cv::gpucodec::EncoderParams::EncoderParams(const String& configFile)
+cv::cudacodec::EncoderParams::EncoderParams(const String& configFile)
 {
     load(configFile);
 }
 
-void cv::gpucodec::EncoderParams::load(const String& configFile)
+void cv::cudacodec::EncoderParams::load(const String& configFile)
 {
     FileStorage fs(configFile, FileStorage::READ);
     CV_Assert( fs.isOpened() );
@@ -865,7 +865,7 @@ void cv::gpucodec::EncoderParams::load(const String& configFile)
     read(fs["DisableSPSPPS"  ], DisableSPSPPS, 0);
 }
 
-void cv::gpucodec::EncoderParams::save(const String& configFile) const
+void cv::cudacodec::EncoderParams::save(const String& configFile) const
 {
     FileStorage fs(configFile, FileStorage::WRITE);
     CV_Assert( fs.isOpened() );
@@ -894,24 +894,24 @@ void cv::gpucodec::EncoderParams::save(const String& configFile) const
 ///////////////////////////////////////////////////////////////////////////
 // createVideoWriter
 
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const String& fileName, Size frameSize, double fps, SurfaceFormat format)
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const String& fileName, Size frameSize, double fps, SurfaceFormat format)
 {
     Ptr<EncoderCallBack> encoderCallback(new EncoderCallBackFFMPEG(fileName, frameSize, fps));
     return createVideoWriter(encoderCallback, frameSize, fps, format);
 }
 
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const String& fileName, Size frameSize, double fps, const EncoderParams& params, SurfaceFormat format)
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const String& fileName, Size frameSize, double fps, const EncoderParams& params, SurfaceFormat format)
 {
     Ptr<EncoderCallBack> encoderCallback(new EncoderCallBackFFMPEG(fileName, frameSize, fps));
     return createVideoWriter(encoderCallback, frameSize, fps, params, format);
 }
 
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const Ptr<EncoderCallBack>& encoderCallback, Size frameSize, double fps, SurfaceFormat format)
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const Ptr<EncoderCallBack>& encoderCallback, Size frameSize, double fps, SurfaceFormat format)
 {
     return new VideoWriterImpl(encoderCallback, frameSize, fps, format);
 }
 
-Ptr<VideoWriter> cv::gpucodec::createVideoWriter(const Ptr<EncoderCallBack>& encoderCallback, Size frameSize, double fps, const EncoderParams& params, SurfaceFormat format)
+Ptr<VideoWriter> cv::cudacodec::createVideoWriter(const Ptr<EncoderCallBack>& encoderCallback, Size frameSize, double fps, const EncoderParams& params, SurfaceFormat format)
 {
     return new VideoWriterImpl(encoderCallback, frameSize, fps, params, format);
 }
diff --git a/modules/gpucodec/test/test_video.cpp b/modules/gpucodec/test/test_video.cpp
index 1313be766f..04efd6602a 100644
--- a/modules/gpucodec/test/test_video.cpp
+++ b/modules/gpucodec/test/test_video.cpp
@@ -57,7 +57,7 @@ GPU_TEST_P(Video, Reader)
 
     const std::string inputFile = std::string(cvtest::TS::ptr()->get_data_path()) + "video/" + GET_PARAM(1);
 
-    cv::Ptr<cv::gpucodec::VideoReader> reader = cv::gpucodec::createVideoReader(inputFile);
+    cv::Ptr<cv::cudacodec::VideoReader> reader = cv::cudacodec::createVideoReader(inputFile);
 
     cv::cuda::GpuMat frame;
 
@@ -85,7 +85,7 @@ GPU_TEST_P(Video, Writer)
     cv::VideoCapture reader(inputFile);
     ASSERT_TRUE(reader.isOpened());
 
-    cv::Ptr<cv::gpucodec::VideoWriter> d_writer;
+    cv::Ptr<cv::cudacodec::VideoWriter> d_writer;
 
     cv::Mat frame;
     cv::cuda::GpuMat d_frame;
@@ -98,7 +98,7 @@ GPU_TEST_P(Video, Writer)
         d_frame.upload(frame);
 
         if (d_writer.empty())
-            d_writer = cv::gpucodec::createVideoWriter(outputFile, frame.size(), FPS);
+            d_writer = cv::cudacodec::createVideoWriter(outputFile, frame.size(), FPS);
 
         d_writer->write(d_frame);
     }
diff --git a/modules/superres/src/frame_source.cpp b/modules/superres/src/frame_source.cpp
index 3b366aff96..f20f6182e2 100644
--- a/modules/superres/src/frame_source.cpp
+++ b/modules/superres/src/frame_source.cpp
@@ -222,7 +222,7 @@ namespace
 
     private:
         String fileName_;
-        Ptr<gpucodec::VideoReader> reader_;
+        Ptr<cudacodec::VideoReader> reader_;
         GpuMat frame_;
     };
 
@@ -251,7 +251,7 @@ namespace
 
     void VideoFrameSource_GPU::reset()
     {
-        reader_ = gpucodec::createVideoReader(fileName_);
+        reader_ = cudacodec::createVideoReader(fileName_);
     }
 }
 
diff --git a/samples/gpu/video_reader.cpp b/samples/gpu/video_reader.cpp
index 13f8cb8081..8d088f919a 100644
--- a/samples/gpu/video_reader.cpp
+++ b/samples/gpu/video_reader.cpp
@@ -30,7 +30,7 @@ int main(int argc, const char* argv[])
     cv::VideoCapture reader(fname);
 
     cv::cuda::GpuMat d_frame;
-    cv::Ptr<cv::gpucodec::VideoReader> d_reader = cv::gpucodec::createVideoReader(fname);
+    cv::Ptr<cv::cudacodec::VideoReader> d_reader = cv::cudacodec::createVideoReader(fname);
 
     cv::TickMeter tm;
     std::vector<double> cpu_times;
diff --git a/samples/gpu/video_writer.cpp b/samples/gpu/video_writer.cpp
index c1bcc5d368..470e7e5518 100644
--- a/samples/gpu/video_writer.cpp
+++ b/samples/gpu/video_writer.cpp
@@ -33,7 +33,7 @@ int main(int argc, const char* argv[])
     cv::gpu::printShortCudaDeviceInfo(cv::gpu::getDevice());
 
     cv::VideoWriter writer;
-    cv::Ptr<cv::gpucodec::VideoWriter> d_writer;
+    cv::Ptr<cv::cudacodec::VideoWriter> d_writer;
 
     cv::Mat frame;
     cv::gpu::GpuMat d_frame;
@@ -68,7 +68,7 @@ int main(int argc, const char* argv[])
         {
             std::cout << "Open GPU Writer" << std::endl;
 
-            d_writer = cv::gpucodec::createVideoWriter("output_gpu.avi", frame.size(), FPS);
+            d_writer = cv::cudacodec::createVideoWriter("output_gpu.avi", frame.size(), FPS);
         }
 
         d_frame.upload(frame);