Commit graph

19 commits

Author SHA1 Message Date
Julian Bouzas
32b0afb608 nvcodec: Report latency in decoder based on max-display-delay
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1633>
2020-10-16 15:56:49 +00:00
Julian Bouzas
1d4b6299dc nvcodec: Add max-display-delay decoder property
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1633>
2020-10-16 15:56:49 +00:00
Seungha Yang
8635d12929 nvdec: Support CUDA buffer pool
If downstream can accept CUDA memory caps feature (currently nvenc only),
always CUDA memory is preferred.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1633>
2020-10-16 15:56:49 +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
Nicolas Dufresne
a28ce16b3f nvdec: Tell the parser we have complete pictures
This sets the CUVID_PKT_ENDOFPICTURE flag in order to inform the decoder that
we have a complete picture. This should remove one frame latency otherwise
introduce by NVidia parser.
2020-01-25 13:39:03 +00:00
Seungha Yang
49bccf0433 nvcodec: Refactor plugin initialization
Create CUDA context per device, instead of per codec and encoder/decoder.
Allocating CUDA context is heavy operation so we should reuse it
as much as possible.

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/1130
2019-12-24 08:10:14 +00:00
Seungha Yang
14b9a1cffd nvdec: Add support for mpeg4 video decoding with codec_data
Decoder should handle codec_data of mpeg4 video which includes essential
config data.
2019-09-11 14:00:48 +00:00
Seungha Yang
39f800c449 nvdec: Re-negotiate whenever output format is changed
Input stream might be silently changed without ::set_format() call.
Since nvdec has internal parser, nvdec element can figure out the format change
by itself.
2019-08-30 01:36:41 +09:00
Seungha Yang
5615e9258f nvdec: Don't use default CUDA stream
Async CUDA operation with default stream (NULL CUstream) is not much
beneficial than blocking operation since all CUDA operations which belong
to the CUDA context will be synchronized with the default stream's operation.
Note that CUDA stream will share all resources of the corresponding CUDA context
but which can help parallel operation similar to the relation between thread and process
2019-08-19 01:18:52 +00:00
Seungha Yang
d69b590683 nvdec: Port to GstCUDAContext
... and drop CUvideoctxlock usage. The CUvideoctxlock basically
has the identical role of cuda context push/pop but nvdec specific
way. Since we can share the CUDA context among encoders and decoders,
use CUDA context directly for accessing GPU API.
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
733c109ce9 nvcodec: Clean up pointless return values around plugin init
Any plugin which returned FALSE from plugin_init will be blacklisted
so the plugin will be unusable even if an user install required runtime
dependency next time. So that's the reason why nvcodec returns TRUE always.

This commit is to remove possible misreading code.
2019-07-25 08:47:50 +00:00
Seungha Yang
e5a98cf9d8 nvdec: Add support for 10bits 4:2:0 decoding
This commit includes h265 main-10 profile support if the device can
decode it.

Note that since h264 10bits decoding is not supported by nvidia GPU for now,
the additional code path for h264 high-10 profile is a preparation for
the future Nvidia's enhancement.
2019-07-25 08:06:26 +00:00
Seungha Yang
0239152bca nvdec: Create CUDA context with registered device id
Only the default device has been used by NVDEC so far.
This commit make it possible to use registered device id.
To simplify device id selection, GstNvDecCudaContext usage is removed.
2019-07-22 17:39:45 +00:00
Seungha Yang
1df2f13d0c nvdec: Register elements per device/codec with capability check
By this commit, each codec has its own element factory so the
nvdec element factory is removed. Also, if there are more than one device,
additional nvdec element factory will be created per
device like nvh264device{device-id}dec, so that the element factory
can expose the exact capability of the device for the codec.
2019-07-22 17:39:45 +00:00
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
Seungha Yang
48a6641717 nvdec: Fix video stuttering issue with VP9
Address nvidia driver specific behavior to avoid unexpected frame mismatch
between GStreamer and NVDEC.
2019-07-19 18:44:32 +09:00
Seungha Yang
8018fa2526 nvdec: Drop async queue and handle data on callback of CUvideoparser
Callbacks of CUvideoparser is called on the streaming thread.
So the use of async queue has no benefit.

Make control flow straightforward instead of long while/switch loop.
2019-07-19 18:44:32 +09:00
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
Renamed from sys/nvdec/gstnvdec.h (Browse further)