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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-19 17:03:55 +00:00
b4efdeba11
Too many decode surface would waste GPU memory. Also it seems to be introducing additional latency depending on stream. Since nvcodec sdk version 9.0, CUVID parser API has been providing the minimum required number of surface. By using it, we can save GPU memory and reduce possible latency.
121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*
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* Copyright (C) 2017 Ericsson AB. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstnvdec.h"
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#include "gstnvenc.h"
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GST_DEBUG_CATEGORY (gst_nvcodec_debug);
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GST_DEBUG_CATEGORY (gst_nvdec_debug);
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GST_DEBUG_CATEGORY (gst_nvenc_debug);
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#define GST_CAT_DEFAULT gst_nvcodec_debug
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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CUresult cuda_ret;
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gint dev_count = 0;
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gint i;
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gboolean nvdec_available = TRUE;
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gboolean nvenc_available = TRUE;
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/* hardcoded minimum supported version */
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guint api_major_ver = 8;
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guint api_minor_ver = 1;
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GST_DEBUG_CATEGORY_INIT (gst_nvcodec_debug, "nvcodec", 0, "nvcodec");
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GST_DEBUG_CATEGORY_INIT (gst_nvdec_debug, "nvdec", 0, "nvdec");
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GST_DEBUG_CATEGORY_INIT (gst_nvenc_debug, "nvenc", 0, "nvenc");
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if (!gst_cuda_load_library ()) {
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GST_WARNING ("Failed to load cuda library");
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return TRUE;
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}
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/* get available API version from nvenc and it will be passed to
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* nvdec */
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if (!gst_nvenc_load_library (&api_major_ver, &api_minor_ver)) {
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GST_WARNING ("Failed to load nvenc library");
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nvenc_available = FALSE;
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}
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if (!gst_cuvid_load_library (api_major_ver, api_minor_ver)) {
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GST_WARNING ("Failed to load nvdec library");
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nvdec_available = FALSE;
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}
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if (!nvdec_available && !nvenc_available)
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return TRUE;
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cuda_ret = CuInit (0);
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if (cuda_ret != CUDA_SUCCESS) {
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GST_WARNING ("Failed to init cuda, ret: 0x%x", (gint) cuda_ret);
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return TRUE;
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}
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if (CuDeviceGetCount (&dev_count) != CUDA_SUCCESS || !dev_count) {
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GST_WARNING ("No available device, ret: 0x%x", (gint) cuda_ret);
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return TRUE;
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}
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for (i = 0; i < dev_count; i++) {
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CUdevice cuda_device;
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CUcontext cuda_ctx;
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cuda_ret = CuDeviceGet (&cuda_device, i);
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if (cuda_ret != CUDA_SUCCESS) {
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GST_WARNING ("Failed to get device handle %d, ret: 0x%x", i,
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(gint) cuda_ret);
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continue;
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}
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cuda_ret = CuCtxCreate (&cuda_ctx, 0, cuda_device);
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if (cuda_ret != CUDA_SUCCESS) {
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GST_WARNING ("Failed to create cuda context, ret: 0x%x", (gint) cuda_ret);
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continue;
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}
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CuCtxPopCurrent (NULL);
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if (nvdec_available)
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gst_nvdec_plugin_init (plugin, i, cuda_ctx);
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if (nvenc_available)
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gst_nvenc_plugin_init (plugin, i, cuda_ctx);
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CuCtxDestroy (cuda_ctx);
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}
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, nvcodec,
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"GStreamer NVCODEC plugin", plugin_init, VERSION, "LGPL",
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GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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