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60735deded
Adding new encoder elements nvd3d11{h264,h265}enc for Direct3D11
input support and re-written nvcuda{h264,h265}enc elements.
Newly writeen elements have some differences compared with old
nv{h264,h265}enc including non-backward compatible changes.
* RGBA is not a supported input format any more:
New elements will support only YUV formats to avoid implicit conversion
done by hardware. Ideally it should be done by upstream element
in order to have more control on it. Moreover, RGBA support can cause
redundant RGBA -> YUV conversion if multiple encoders are
used for the same RGBA input
* Subsampled planar format support is dropped:
I420 and YV12 format are not supported formats for Direct3D11.
Although it's supported in CUDA mode, it's not a hardware friendly
memory layout and it will waste GPU memory since UV planes
will have large padding due to the memory layout requirement of NVENC.
* GL support is dropped: Similar to the RGBA case,
GL support in encoder would be suboptimal if GL input is
used by multiple encoders, because each encoder will copy GL memory
into CUDA memory.
Upstream cudaupload element can be used for GL <-> CUDA
interop instead.
* No more pre-allocation of encoder input surfaces. New implementation
will use input CUDA memory without copy (zero-copy) or
will copy into a NVENC's input buffer struct in case of
system memory input.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1997>
97 lines
3.5 KiB
C
97 lines
3.5 KiB
C
/* GStreamer NVENC plugin
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* Copyright (C) 2015 Centricular Ltd
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_NVENC_H_INCLUDED__
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#define __GST_NVENC_H_INCLUDED__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstcudaloader.h"
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#include "nvEncodeAPI.h"
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G_BEGIN_DECLS
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gboolean gst_nvenc_cmp_guid (GUID g1, GUID g2);
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NV_ENC_BUFFER_FORMAT gst_nvenc_get_nv_buffer_format (GstVideoFormat fmt);
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gboolean gst_nvenc_get_supported_input_formats (gpointer encoder,
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GUID codec_id,
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GValue ** formats);
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GValue * gst_nvenc_get_interlace_modes (gpointer enc,
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GUID codec_id);
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GValue * gst_nvenc_get_supported_codec_profiles (gpointer enc,
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GUID codec_id);
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void gst_nvenc_plugin_init (GstPlugin * plugin,
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guint device_index,
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CUcontext cuda_ctx);
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guint32 gst_nvenc_get_api_version (void);
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guint32 gst_nvenc_get_caps_param_version (void);
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guint32 gst_nvenc_get_encode_out_params_version (void);
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guint32 gst_nvenc_get_create_input_buffer_version (void);
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guint32 gst_nvenc_get_create_bitstream_buffer_version (void);
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guint32 gst_nvenc_get_create_mv_buffer_version (void);
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guint32 gst_nvenc_get_rc_params_version (void);
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guint32 gst_nvenc_get_config_version (void);
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guint32 gst_nvenc_get_initialize_params_version (void);
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guint32 gst_nvenc_get_reconfigure_params_version (void);
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guint32 gst_nvenc_get_preset_config_version (void);
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guint32 gst_nvenc_get_pic_params_version (void);
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guint32 gst_nvenc_get_meonly_params_version (void);
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guint32 gst_nvenc_get_lock_bitstream_version (void);
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guint32 gst_nvenc_get_lock_input_buffer_version (void);
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guint32 gst_nvenc_get_map_input_resource_version (void);
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guint32 gst_nvenc_get_register_resource_version (void);
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guint32 gst_nvenc_get_stat_version (void);
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guint32 gst_nvenc_get_sequence_param_payload_version (void);
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guint32 gst_nvenc_get_event_params_version (void);
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guint32 gst_nvenc_get_open_encode_session_ex_params_version (void);
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gboolean gst_nvenc_load_library (guint * api_major_ver,
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guint * api_minor_ver);
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G_END_DECLS
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#endif /* __GST_NVENC_H_INCLUDED__ */
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