Commit graph

8 commits

Author SHA1 Message Date
Seungha Yang
711e964572 nvcodec: Add H265 stateless codec implementation
Add a new GstCodecs based H265 decoder element

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1357>
2020-06-24 16:25:58 +00:00
Seungha Yang
9c21923f04 nvcodec: Add H264 stateless codec implementation
Introduce GstH264Decoder based Nvidia H.264 decoder element.
Similar the element factory name of to v4l2 stateless codec,
this element can be configured with factory name "gstnvh264sldec".
Note that "sl" in the name stands for "stateless"

For now, existing nvh264dec covers more profile and formats
(e.g., interlaced stream) than this implementation.
However, this implementation allows us to control lower level
parameters such as decoded picture buffer management and therefore
we can get a chance to improve performance in terms of latency.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1198>
2020-04-24 09:23:10 +00:00
Seungha Yang
094e4a9f5c nvcodec: Introduce NVIDA CUDA helpers
New object and helper functions can remove duplicated code
from nvenc/nvdec. Also this is prework for CUDA device context sharing
among nvdec(s)/nvenc(s).
2019-08-07 00:59:36 +00:00
Seungha Yang
694f91da88 nvdec: Make OpenGL dependency optional
By adding system memory support for nvdec, both en/decoder
in the nvcodec plugin are able to be usable regardless of
OpenGL dependency. Besides, the direct use of system memory
might have less overhead than OpenGL memory depending on use cases.
(e.g., transcoding using S/W encoder)
2019-07-26 00:01:23 +00:00
Seungha Yang
367e742e5d nvcodec: Drop system installed cuda.h dependency
... and add our stub cuda header.

Newly introduced stub cuda.h file is defining minimal types in order to
build nvcodec plugin without system installed CUDA toolkit dependency.
This will make cross-compile possible.
2019-07-23 16:32:31 +09:00
Seungha Yang
afe3c7e3ef nvcodec: Drop cudaGL.h dependency
nvcodec does not use any type/define/enum in cudaGL.h.
2019-07-22 23:11:14 +09:00
Marc Leeman
489ff8604f nvcodec: do a generic cuda tests before going into version specifics 2019-07-08 10:37:46 +00:00
Seungha Yang
c18fda03d9 nvdec,nvenc: Port to dynamic library loading
... and put them into new nvcodec plugin.

* nvcodec plugin
Now each nvenc and nvdec element is moved to be a part of nvcodec plugin
for better interoperability.
Additionally, cuda runtime API header dependencies
(i.e., cuda_runtime_api.h and cuda_gl_interop.h) are removed.
Note that cuda runtime APIs have prefix "cuda". Since 1.16 release with
Windows support, only "cuda.h" and "cudaGL.h" dependent symbols have
been used except for some defined types. However, those types could be
replaced with other types which were defined by "cuda.h".

* dynamic library loading
CUDA library will be opened with g_module_open() instead of build-time linking.
On Windows, nvcuda.dll is installed to system path by CUDA Toolkit
installer, and on *nix, user should ensure that libcuda.so.1 can be
loadable (i.e., via LD_LIBRARY_PATH or default dlopen path)
Therefore, NVIDIA_VIDEO_CODEC_SDK_PATH env build time dependency for Windows
is removed.
2019-07-08 10:37:46 +00:00