gstreamer/sys/nvcodec/gstnvh265enc.c

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/* 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 <gst/base/gstbytewriter.h>
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_nv_h265_enc_debug);
#define GST_CAT_DEFAULT gst_nv_h265_enc_debug
#define parent_class gst_nv_h265_enc_parent_class
G_DEFINE_TYPE (GstNvH265Enc, gst_nv_h265_enc, GST_TYPE_NV_BASE_ENC);
static gboolean gst_nv_h265_enc_open (GstVideoEncoder * enc);
static gboolean gst_nv_h265_enc_close (GstVideoEncoder * enc);
static gboolean gst_nv_h265_enc_stop (GstVideoEncoder * enc);
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->stop = GST_DEBUG_FUNCPTR (gst_nv_h265_enc_stop);
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_set_static_metadata (element_class,
"NVENC HEVC Video Encoder",
"Codec/Encoder/Video/Hardware",
"Encode HEVC video streams using NVIDIA's hardware-accelerated NVENC encoder API",
"Tim-Philipp Müller <tim@centricular.com>, "
"Matthew Waters <matthew@centricular.com>, "
2018-11-22 08:18:18 +00:00
"Seungha Yang <pudding8757@gmail.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
gst_nv_h265_enc_open (GstVideoEncoder * enc)
{
GstNvBaseEnc *base = GST_NV_BASE_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 (base->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;
}
}
return TRUE;
}
static gboolean
gst_nv_h265_enc_close (GstVideoEncoder * enc)
{
return GST_VIDEO_ENCODER_CLASS (gst_nv_h265_enc_parent_class)->close (enc);
}
static void
gst_nv_h265_enc_clear_stream_data (GstNvH265Enc * h265enc)
{
gint i;
if (!h265enc->sei_payload)
return;
for (i = 0; i < h265enc->num_sei_payload; i++)
g_free (h265enc->sei_payload[i].payload);
g_free (h265enc->sei_payload);
h265enc->sei_payload = NULL;
h265enc->num_sei_payload = 0;
}
static gboolean
gst_nv_h265_enc_stop (GstVideoEncoder * enc)
{
GstNvH265Enc *h265enc = GST_NV_H265_ENC (enc);
gst_nv_h265_enc_clear_stream_data (h265enc);
return GST_VIDEO_ENCODER_CLASS (gst_nv_h265_enc_parent_class)->stop (enc);
}
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 guint8 *
gst_nv_h265_enc_create_mastering_display_sei_nal (GstNvH265Enc * h265enc,
GstVideoMasteringDisplayInfo * minfo, guint * size)
{
guint sei_size;
guint16 primary_x[3];
guint16 primary_y[3];
guint16 white_x, white_y;
guint32 max_luma;
guint32 min_luma;
const guint chroma_scale = 50000;
const guint luma_scale = 10000;
gint i;
GstByteWriter br;
GST_DEBUG_OBJECT (h265enc, "Apply mastering display info");
GST_LOG_OBJECT (h265enc, "\tRed (%u/%u, %u/%u)", minfo->Rx_n,
minfo->Rx_d, minfo->Ry_n, minfo->Ry_d);
GST_LOG_OBJECT (h265enc, "\tGreen(%u/%u, %u/%u)", minfo->Gx_n,
minfo->Gx_d, minfo->Gy_n, minfo->Gy_d);
GST_LOG_OBJECT (h265enc, "\tBlue (%u/%u, %u/%u)", minfo->Bx_n,
minfo->Bx_d, minfo->By_n, minfo->By_d);
GST_LOG_OBJECT (h265enc, "\tWhite(%u/%u, %u/%u)", minfo->Wx_n,
minfo->Wx_d, minfo->Wy_n, minfo->Wy_d);
GST_LOG_OBJECT (h265enc,
"\tmax_luminance:(%u/%u), min_luminance:(%u/%u)",
minfo->max_luma_n, minfo->max_luma_d, minfo->min_luma_n,
minfo->min_luma_d);
primary_x[0] =
(guint16) gst_util_uint64_scale_round (minfo->Gx_n, chroma_scale,
minfo->Gx_d);
primary_x[1] =
(guint16) gst_util_uint64_scale_round (minfo->Bx_n, chroma_scale,
minfo->Bx_d);
primary_x[2] =
(guint16) gst_util_uint64_scale_round (minfo->Rx_n, chroma_scale,
minfo->Rx_d);
primary_y[0] =
(guint16) gst_util_uint64_scale_round (minfo->Gy_n, chroma_scale,
minfo->Gy_d);
primary_y[1] =
(guint16) gst_util_uint64_scale_round (minfo->By_n, chroma_scale,
minfo->By_d);
primary_y[2] =
(guint16) gst_util_uint64_scale_round (minfo->Ry_n, chroma_scale,
minfo->Ry_d);
white_x =
(guint16) gst_util_uint64_scale_round (minfo->Wx_n, chroma_scale,
minfo->Wx_d);
white_y =
(guint16) gst_util_uint64_scale_round (minfo->Wy_n, chroma_scale,
minfo->Wy_d);
max_luma =
(guint32) gst_util_uint64_scale_round (minfo->max_luma_n, luma_scale,
minfo->max_luma_d);
min_luma =
(guint32) gst_util_uint64_scale_round (minfo->min_luma_n, luma_scale,
minfo->min_luma_d);
/* x, y 16bits per RGB channel
* x, y 16bits white point
* max, min luminance 32bits
*/
sei_size = (2 * 2 * 3) + (2 * 2) + (4 * 2);
gst_byte_writer_init_with_size (&br, sei_size, TRUE);
for (i = 0; i < 3; i++) {
gst_byte_writer_put_uint16_be (&br, primary_x[i]);
gst_byte_writer_put_uint16_be (&br, primary_y[i]);
}
gst_byte_writer_put_uint16_be (&br, white_x);
gst_byte_writer_put_uint16_be (&br, white_y);
gst_byte_writer_put_uint32_be (&br, max_luma);
gst_byte_writer_put_uint32_be (&br, min_luma);
*size = sei_size;
return gst_byte_writer_reset_and_get_data (&br);
}
static guint8 *
gst_nv_h265_enc_create_content_light_level_sei_nal (GstNvH265Enc * h265enc,
GstVideoContentLightLevel * linfo, guint * size)
{
gdouble val;
guint sei_size;
GstByteWriter br;
GST_DEBUG_OBJECT (h265enc, "Apply content light level");
GST_LOG_OBJECT (h265enc, "content light level found");
GST_LOG_OBJECT (h265enc,
"\tmaxCLL:(%u/%u), maxFALL:(%u/%u)", linfo->maxCLL_n, linfo->maxCLL_d,
linfo->maxFALL_n, linfo->maxFALL_d);
/* maxCLL and maxFALL per 16bits */
sei_size = 2 * 2;
gst_byte_writer_init_with_size (&br, sei_size, TRUE);
gst_util_fraction_to_double (linfo->maxCLL_n, linfo->maxCLL_d, &val);
gst_byte_writer_put_uint16_be (&br, (guint16) val);
gst_util_fraction_to_double (linfo->maxFALL_n, linfo->maxFALL_d, &val);
gst_byte_writer_put_uint16_be (&br, (guint16) val);
*size = sei_size;
return gst_byte_writer_reset_and_get_data (&br);
}
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;
GstVideoInfo *info = &state->info;
NV_ENC_CONFIG_HEVC *hevc_config = &config->encodeCodecConfig.hevcConfig;
NV_ENC_CONFIG_HEVC_VUI_PARAMETERS *vui = &hevc_config->hevcVUIParameters;
template_caps =
gst_pad_get_pad_template_caps (GST_VIDEO_ENCODER_SRC_PAD (h265enc));
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 if (g_str_has_prefix (profile, "main-10")) {
selected_profile = NV_ENC_HEVC_PROFILE_MAIN10_GUID;
} else if (g_str_has_prefix (profile, "main-444")) {
selected_profile = NV_ENC_HEVC_PROFILE_FREXT_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;
hevc_config->level = level_idc;
hevc_config->idrPeriod = config->gopLength;
config->encodeCodecConfig.hevcConfig.chromaFormatIDC = 1;
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_Y444 ||
GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_Y444_16LE ||
GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_Y444_16BE) {
GST_DEBUG_OBJECT (h265enc, "have Y444 input, setting config accordingly");
config->profileGUID = NV_ENC_HEVC_PROFILE_FREXT_GUID;
config->encodeCodecConfig.hevcConfig.chromaFormatIDC = 3;
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_Y444_16LE ||
GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_Y444_16BE)
config->encodeCodecConfig.hevcConfig.pixelBitDepthMinus8 = 2;
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
} else if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_P010_10LE) {
#else
} else if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_P010_10BE) {
#endif
config->profileGUID = NV_ENC_HEVC_PROFILE_MAIN10_GUID;
config->encodeCodecConfig.hevcConfig.pixelBitDepthMinus8 = 2;
}
/* FIXME: make property */
hevc_config->outputAUD = 1;
vui->videoSignalTypePresentFlag = 1;
/* NOTE: vui::video_format represents the video format before
* being encoded such as PAL, NTSC, SECAM, and MAC. That's not much informal
* and can be inferred with resolution and framerate by any application.
*/
/* Unspecified video format (5) */
vui->videoFormat = 5;
if (info->colorimetry.range == GST_VIDEO_COLOR_RANGE_0_255) {
vui->videoFullRangeFlag = 1;
} else {
vui->videoFullRangeFlag = 0;
}
vui->colourDescriptionPresentFlag = 1;
vui->colourMatrix = gst_video_color_matrix_to_iso (info->colorimetry.matrix);
vui->colourPrimaries =
gst_video_color_primaries_to_iso (info->colorimetry.primaries);
vui->transferCharacteristics =
gst_video_color_transfer_to_iso (info->colorimetry.transfer);
gst_nv_h265_enc_clear_stream_data (h265enc);
{
GstVideoMasteringDisplayInfo minfo;
GstVideoContentLightLevel linfo;
gboolean have_mastering;
gboolean have_cll;
guint size;
gint i = 0;
have_mastering =
gst_video_mastering_display_info_from_caps (&minfo, state->caps);
have_cll = gst_video_content_light_level_from_caps (&linfo, state->caps);
if (have_mastering)
h265enc->num_sei_payload++;
if (have_cll)
h265enc->num_sei_payload++;
h265enc->sei_payload =
g_new0 (NV_ENC_SEI_PAYLOAD, h265enc->num_sei_payload);
if (have_mastering) {
h265enc->sei_payload[i].payload =
gst_nv_h265_enc_create_mastering_display_sei_nal (h265enc,
&minfo, &size);
h265enc->sei_payload[i].payloadSize = size;
h265enc->sei_payload[i].payloadType = 137;
i++;
}
if (have_cll) {
h265enc->sei_payload[i].payload =
gst_nv_h265_enc_create_content_light_level_sei_nal (h265enc,
&linfo, &size);
h265enc->sei_payload[i].payloadSize = size;
h265enc->sei_payload[i].payloadType = 144;
}
}
return TRUE;
}
static gboolean
gst_nv_h265_enc_set_pic_params (GstNvBaseEnc * enc, GstVideoCodecFrame * frame,
NV_ENC_PIC_PARAMS * pic_params)
{
GstNvH265Enc *h265enc = GST_NV_H265_ENC (enc);
/* encode whole picture in one single slice */
pic_params->codecPicParams.hevcPicParams.sliceMode = 0;
pic_params->codecPicParams.hevcPicParams.sliceModeData = 0;
if (h265enc->sei_payload) {
pic_params->codecPicParams.hevcPicParams.seiPayloadArray =
h265enc->sei_payload;
pic_params->codecPicParams.hevcPicParams.seiPayloadArrayCnt =
h265enc->num_sei_payload;
}
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;
}
}