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nvh265enc: Add Nvidia GPU based HEVC encoder

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=795037
This commit is contained in:
Seungha Yang 2018-04-06 23:22:26 +09:00 committed by Jan Schmidt
parent 5f95094f39
commit 3f318ecb96
4 changed files with 500 additions and 2 deletions
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6
sys/nvenc/Makefile.am
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@ -3,12 +3,14 @@ plugin_LTLIBRARIES = libgstnvenc.la
libgstnvenc_la_SOURCES = \
gstnvenc.c \
gstnvbaseenc.c \
gstnvh264enc.c
gstnvh264enc.c \
gstnvh265enc.c
noinst_HEADERS = \
gstnvenc.h \
gstnvbaseenc.h \
gstnvh264enc.h
gstnvh264enc.h \
gstnvh265enc.h
libgstnvenc_la_CFLAGS = \
$(GST_PLUGINS_BAD_CFLAGS) \

3
sys/nvenc/gstnvenc.c
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@ -23,6 +23,7 @@
#include "gstnvenc.h"
#include "gstnvh264enc.h"
#include "gstnvh265enc.h"
GST_DEBUG_CATEGORY (gst_nvenc_debug);
#define GST_CAT_DEFAULT gst_nvenc_debug
@ -335,6 +336,8 @@ plugin_init (GstPlugin * plugin)
gst_element_register (plugin, "nvh264enc", GST_RANK_PRIMARY * 2,
gst_nv_h264_enc_get_type ());
gst_element_register (plugin, "nvh265enc", GST_RANK_PRIMARY * 2,
gst_nv_h265_enc_get_type ());
}
return TRUE;

433
sys/nvenc/gstnvh265enc.c Normal file
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@ -0,0 +1,433 @@
/* GStreamer NVENC plugin
* Copyright (C) 2015 Centricular Ltd
* Copyright (C) 2018 Seungha Yang <pudding8757@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnvh265enc.h"
#include <gst/pbutils/codec-utils.h>
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_nv_h265_enc_debug);
#define GST_CAT_DEFAULT gst_nv_h265_enc_debug
#if HAVE_GST_GL
#include <cuda.h>
#include <cuda_runtime_api.h>
#include <cuda_gl_interop.h>
#define GST_USE_UNSTABLE_API
#include <gst/gl/gl.h>
#endif
#define parent_class gst_nv_h265_enc_parent_class
G_DEFINE_TYPE (GstNvH265Enc, gst_nv_h265_enc, GST_TYPE_NV_BASE_ENC);
/* *INDENT-OFF* */
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, " "format = (string) { NV12, I420 }, " // TODO: YV12, Y444 support
"width = (int) [ 16, 4096 ], height = (int) [ 16, 2160 ], "
"framerate = (fraction) [0, MAX] "
#if HAVE_NVENC_GST_GL
";"
"video/x-raw(memory:GLMemory), "
"format = (string) { NV12, Y444 }, "
"width = (int) [ 16, 4096 ], height = (int) [ 16, 2160 ], "
"framerate = (fraction) [0, MAX] "
#endif
));
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h265, "
"width = (int) [ 1, 4096 ], height = (int) [ 1, 2160 ], "
"framerate = (fraction) [0/1, MAX], "
"stream-format = (string) byte-stream, "
"alignment = (string) au, "
"profile = (string) { main }") // TODO: a couple of others
);
/* *INDENT-ON* */
static gboolean gst_nv_h265_enc_open (GstVideoEncoder * enc);
static gboolean gst_nv_h265_enc_close (GstVideoEncoder * enc);
static GstCaps *gst_nv_h265_enc_getcaps (GstVideoEncoder * enc,
GstCaps * filter);
static gboolean gst_nv_h265_enc_set_src_caps (GstNvBaseEnc * nvenc,
GstVideoCodecState * state);
static gboolean gst_nv_h265_enc_set_encoder_config (GstNvBaseEnc * nvenc,
GstVideoCodecState * state, NV_ENC_CONFIG * config);
static gboolean gst_nv_h265_enc_set_pic_params (GstNvBaseEnc * nvenc,
GstVideoCodecFrame * frame, NV_ENC_PIC_PARAMS * pic_params);
static void gst_nv_h265_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_nv_h265_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_nv_h265_enc_finalize (GObject * obj);
static void
gst_nv_h265_enc_class_init (GstNvH265EncClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoEncoderClass *videoenc_class = GST_VIDEO_ENCODER_CLASS (klass);
GstNvBaseEncClass *nvenc_class = GST_NV_BASE_ENC_CLASS (klass);
gobject_class->set_property = gst_nv_h265_enc_set_property;
gobject_class->get_property = gst_nv_h265_enc_get_property;
gobject_class->finalize = gst_nv_h265_enc_finalize;
videoenc_class->open = GST_DEBUG_FUNCPTR (gst_nv_h265_enc_open);
videoenc_class->close = GST_DEBUG_FUNCPTR (gst_nv_h265_enc_close);
videoenc_class->getcaps = GST_DEBUG_FUNCPTR (gst_nv_h265_enc_getcaps);
nvenc_class->codec_id = NV_ENC_CODEC_HEVC_GUID;
nvenc_class->set_encoder_config = gst_nv_h265_enc_set_encoder_config;
nvenc_class->set_src_caps = gst_nv_h265_enc_set_src_caps;
nvenc_class->set_pic_params = gst_nv_h265_enc_set_pic_params;
gst_element_class_add_static_pad_template (element_class, &sink_factory);
gst_element_class_add_static_pad_template (element_class, &src_factory);
gst_element_class_set_static_metadata (element_class,
"NVENC HEVC Video Encoder",
"Codec/Encoder/Video",
"Encode HEVC video streams using NVIDIA's hardware-accelerated NVENC encoder API",
"Tim-Philipp Müller <tim@centricular.com>, "
"Matthew Waters <matthew@centricular.com>, "
"Seungha Yang <pudding8757@gmail.com.com>");
GST_DEBUG_CATEGORY_INIT (gst_nv_h265_enc_debug,
"nvh265enc", 0, "Nvidia HEVC encoder");
}
static void
gst_nv_h265_enc_init (GstNvH265Enc * nvenc)
{
}
static void
gst_nv_h265_enc_finalize (GObject * obj)
{
G_OBJECT_CLASS (gst_nv_h265_enc_parent_class)->finalize (obj);
}
static gboolean
_get_supported_profiles (GstNvH265Enc * nvenc)
{
NVENCSTATUS nv_ret;
GUID profile_guids[64];
GValue list = G_VALUE_INIT;
GValue val = G_VALUE_INIT;
guint i, n, n_profiles;
nv_ret =
NvEncGetEncodeProfileGUIDCount (GST_NV_BASE_ENC (nvenc)->encoder,
NV_ENC_CODEC_HEVC_GUID, &n);
if (nv_ret != NV_ENC_SUCCESS)
return FALSE;
nv_ret =
NvEncGetEncodeProfileGUIDs (GST_NV_BASE_ENC (nvenc)->encoder,
NV_ENC_CODEC_HEVC_GUID, profile_guids, G_N_ELEMENTS (profile_guids), &n);
if (nv_ret != NV_ENC_SUCCESS)
return FALSE;
n_profiles = 0;
g_value_init (&list, GST_TYPE_LIST);
for (i = 0; i < n; i++) {
g_value_init (&val, G_TYPE_STRING);
if (gst_nvenc_cmp_guid (profile_guids[i], NV_ENC_HEVC_PROFILE_MAIN_GUID)) {
g_value_set_static_string (&val, "main");
gst_value_list_append_value (&list, &val);
n_profiles++;
}
/* TODO: map MAIN10, FREXT */
g_value_unset (&val);
}
if (n_profiles == 0)
return FALSE;
GST_OBJECT_LOCK (nvenc);
g_free (nvenc->supported_profiles);
nvenc->supported_profiles = g_memdup (&list, sizeof (GValue));
GST_OBJECT_UNLOCK (nvenc);
return TRUE;
}
static gboolean
gst_nv_h265_enc_open (GstVideoEncoder * enc)
{
GstNvH265Enc *nvenc = GST_NV_H265_ENC (enc);
if (!GST_VIDEO_ENCODER_CLASS (gst_nv_h265_enc_parent_class)->open (enc))
return FALSE;
/* Check if HEVC is supported */
{
uint32_t i, num = 0;
GUID guids[16];
NvEncGetEncodeGUIDs (GST_NV_BASE_ENC (nvenc)->encoder, guids,
G_N_ELEMENTS (guids), &num);
for (i = 0; i < num; ++i) {
if (gst_nvenc_cmp_guid (guids[i], NV_ENC_CODEC_HEVC_GUID))
break;
}
GST_INFO_OBJECT (enc, "HEVC encoding %ssupported", (i == num) ? "un" : "");
if (i == num) {
gst_nv_h265_enc_close (enc);
return FALSE;
}
}
/* query supported input formats */
if (!_get_supported_profiles (nvenc)) {
GST_WARNING_OBJECT (nvenc, "No supported encoding profiles");
gst_nv_h265_enc_close (enc);
return FALSE;
}
return TRUE;
}
static gboolean
gst_nv_h265_enc_close (GstVideoEncoder * enc)
{
GstNvH265Enc *nvenc = GST_NV_H265_ENC (enc);
GST_OBJECT_LOCK (nvenc);
g_free (nvenc->supported_profiles);
nvenc->supported_profiles = NULL;
GST_OBJECT_UNLOCK (nvenc);
return GST_VIDEO_ENCODER_CLASS (gst_nv_h265_enc_parent_class)->close (enc);
}
static GstCaps *
gst_nv_h265_enc_getcaps (GstVideoEncoder * enc, GstCaps * filter)
{
GstNvH265Enc *nvenc = GST_NV_H265_ENC (enc);
GstCaps *supported_incaps = NULL;
GstCaps *template_caps, *caps;
GValue *input_formats = GST_NV_BASE_ENC (enc)->input_formats;
GST_OBJECT_LOCK (nvenc);
if (input_formats != NULL) {
template_caps = gst_pad_get_pad_template_caps (enc->sinkpad);
supported_incaps = gst_caps_copy (template_caps);
gst_caps_set_value (supported_incaps, "format", input_formats);
GST_LOG_OBJECT (enc, "codec input caps %" GST_PTR_FORMAT, supported_incaps);
GST_LOG_OBJECT (enc, " template caps %" GST_PTR_FORMAT, template_caps);
caps = gst_caps_intersect (template_caps, supported_incaps);
gst_caps_unref (template_caps);
gst_caps_unref (supported_incaps);
supported_incaps = caps;
GST_LOG_OBJECT (enc, " supported caps %" GST_PTR_FORMAT, supported_incaps);
}
GST_OBJECT_UNLOCK (nvenc);
caps = gst_video_encoder_proxy_getcaps (enc, supported_incaps, filter);
if (supported_incaps)
gst_caps_unref (supported_incaps);
GST_DEBUG_OBJECT (nvenc, " returning caps %" GST_PTR_FORMAT, caps);
return caps;
}
static gboolean
gst_nv_h265_enc_set_level_tier_and_profile (GstNvH265Enc * nvenc,
GstCaps * caps)
{
#define N_BYTES_VPS 128
guint8 vps[N_BYTES_VPS];
NV_ENC_SEQUENCE_PARAM_PAYLOAD spp = { 0, };
NVENCSTATUS nv_ret;
guint32 seq_size;
spp.version = NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER;
spp.inBufferSize = N_BYTES_VPS;
spp.spsId = 0;
spp.ppsId = 0;
spp.spsppsBuffer = &vps;
spp.outSPSPPSPayloadSize = &seq_size;
nv_ret = NvEncGetSequenceParams (GST_NV_BASE_ENC (nvenc)->encoder, &spp);
if (nv_ret != NV_ENC_SUCCESS) {
GST_ELEMENT_ERROR (nvenc, STREAM, ENCODE, ("Encode header failed."),
("NvEncGetSequenceParams return code=%d", nv_ret));
return FALSE;
}
if (seq_size < 8) {
GST_ELEMENT_ERROR (nvenc, STREAM, ENCODE, ("Encode header failed."),
("NvEncGetSequenceParams returned incomplete data"));
return FALSE;
}
GST_MEMDUMP ("Header", spp.spsppsBuffer, seq_size);
/* skip nal header and identifier */
gst_codec_utils_h265_caps_set_level_tier_and_profile (caps,
&vps[6], seq_size - 6);
return TRUE;
#undef N_BYTES_VPS
}
static gboolean
gst_nv_h265_enc_set_src_caps (GstNvBaseEnc * nvenc, GstVideoCodecState * state)
{
GstNvH265Enc *h265enc = GST_NV_H265_ENC (nvenc);
GstVideoCodecState *out_state;
GstStructure *s;
GstCaps *out_caps;
out_caps = gst_caps_new_empty_simple ("video/x-h265");
s = gst_caps_get_structure (out_caps, 0);
/* TODO: add support for hvc1,hev1 format as well */
gst_structure_set (s, "stream-format", G_TYPE_STRING, "byte-stream",
"alignment", G_TYPE_STRING, "au", NULL);
if (!gst_nv_h265_enc_set_level_tier_and_profile (h265enc, out_caps)) {
gst_caps_unref (out_caps);
return FALSE;
}
out_state = gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (nvenc),
out_caps, state);
GST_INFO_OBJECT (nvenc, "output caps: %" GST_PTR_FORMAT, out_state->caps);
/* encoder will keep it around for us */
gst_video_codec_state_unref (out_state);
/* TODO: would be nice to also send some tags with the codec name */
return TRUE;
}
static gboolean
gst_nv_h265_enc_set_encoder_config (GstNvBaseEnc * nvenc,
GstVideoCodecState * state, NV_ENC_CONFIG * config)
{
GstNvH265Enc *h265enc = GST_NV_H265_ENC (nvenc);
GstCaps *allowed_caps, *template_caps;
GUID selected_profile = NV_ENC_CODEC_PROFILE_AUTOSELECT_GUID;
int level_idc = NV_ENC_LEVEL_AUTOSELECT;
template_caps = gst_static_pad_template_get_caps (&src_factory);
allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (h265enc));
if (template_caps == allowed_caps) {
GST_INFO_OBJECT (h265enc, "downstream has ANY caps");
} else if (allowed_caps) {
GstStructure *s;
const gchar *profile;
const gchar *level;
if (gst_caps_is_empty (allowed_caps)) {
gst_caps_unref (allowed_caps);
gst_caps_unref (template_caps);
return FALSE;
}
allowed_caps = gst_caps_make_writable (allowed_caps);
allowed_caps = gst_caps_fixate (allowed_caps);
s = gst_caps_get_structure (allowed_caps, 0);
profile = gst_structure_get_string (s, "profile");
/* FIXME: only support main profile only for now */
if (profile) {
if (!strcmp (profile, "main")) {
selected_profile = NV_ENC_HEVC_PROFILE_MAIN_GUID;
} else {
g_assert_not_reached ();
}
}
level = gst_structure_get_string (s, "level");
if (level)
/* matches values stored in NV_ENC_LEVEL */
level_idc = gst_codec_utils_h265_get_level_idc (level);
gst_caps_unref (allowed_caps);
}
gst_caps_unref (template_caps);
/* override some defaults */
GST_LOG_OBJECT (h265enc, "setting parameters");
config->profileGUID = selected_profile;
config->encodeCodecConfig.hevcConfig.level = level_idc;
config->encodeCodecConfig.hevcConfig.idrPeriod = config->gopLength;
/* FIXME: make property */
config->encodeCodecConfig.hevcConfig.outputAUD = 1;
return TRUE;
}
static gboolean
gst_nv_h265_enc_set_pic_params (GstNvBaseEnc * enc, GstVideoCodecFrame * frame,
NV_ENC_PIC_PARAMS * pic_params)
{
/* encode whole picture in one single slice */
pic_params->codecPicParams.hevcPicParams.sliceMode = 0;
pic_params->codecPicParams.hevcPicParams.sliceModeData = 0;
return TRUE;
}
static void
gst_nv_h265_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_nv_h265_enc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}

60
sys/nvenc/gstnvh265enc.h Normal file
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@ -0,0 +1,60 @@
/* GStreamer NVENC plugin
* Copyright (C) 2015 Centricular Ltd
* Copyright (C) 2018 Seungha Yang <pudding8757@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_NV_HEVC_ENC_H_INCLUDED__
#define __GST_NV_HEVC_ENC_H_INCLUDED__
#include "gstnvbaseenc.h"
#define GST_TYPE_NV_H265_ENC \
(gst_nv_h265_enc_get_type())
#define GST_NV_H265_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_NV_H265_ENC,GstNvH265Enc))
#define GST_NV_H265_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_NV_H265_ENC,GstNvH265EncClass))
#define GST_NV_H265_ENC_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_NV_H265_ENC,GstNvH265EncClass))
#define GST_IS_NV_H265_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_NV_H265_ENC))
#define GST_IS_NV_H265_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_NV_H265_ENC))
typedef struct {
GstNvBaseEnc base_nvenc;
/* the supported input formats */
GValue * supported_profiles; /* OBJECT LOCK */
GstVideoCodecState *input_state;
gboolean gl_input;
/* supported interlacing input modes.
* 0 = none, 1 = fields, 2 = interleaved */
gint interlace_modes;
} GstNvH265Enc;
typedef struct {
GstNvBaseEncClass video_encoder_class;
} GstNvH265EncClass;
G_GNUC_INTERNAL
GType gst_nv_h265_enc_get_type (void);
#endif /* __GST_NV_HEVC_ENC_H_INCLUDED__ */