gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstcudaipc.cpp

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.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 "gstcudaipc.h"
#include <gst/cuda/gstcuda-private.h>
#include <string.h>
#include <cctype>
#include <locale>
#include <codecvt>
#include <algorithm>
#include <mutex>
#ifdef G_OS_WIN32
#include <windows.h>
#endif
#define GST_CUDA_IPC_MAGIC_NUMBER 0xC0DA10C0
constexpr guint GST_CUDA_IPC_PKT_HAVE_DATA_PAYLOAD_MIN_SIZE =
sizeof (GstClockTime) + sizeof (CUipcMemHandle) +
sizeof (GstCudaIpcMemLayout) + sizeof (guint8);
constexpr guint GST_CUDA_IPC_PKT_RELEASE_DATA_PAYLOAD_SIZE =
sizeof (CUipcMemHandle);
bool
gst_cuda_ipc_pkt_identify (std::vector < guint8 > &buf,
GstCudaIpcPacketHeader & header)
{
g_return_val_if_fail (buf.size () >= GST_CUDA_IPC_PKT_HEADER_SIZE, false);
memcpy (&header, &buf[0], GST_CUDA_IPC_PKT_HEADER_SIZE);
if (header.magic != GST_CUDA_IPC_MAGIC_NUMBER)
return false;
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE + header.payload_size);
return true;
}
bool
gst_cuda_ipc_pkt_build_config (std::vector < guint8 > &buf,
GstCudaPid pid, gboolean use_mmap, GstCaps * caps)
{
GstCudaIpcPacketHeader header;
guint8 *ptr;
gchar *caps_str = nullptr;
guint caps_size = 0;
g_return_val_if_fail (GST_IS_CAPS (caps), false);
caps_str = gst_caps_serialize (caps, GST_SERIALIZE_FLAG_NONE);
if (!caps_str)
return false;
caps_size = strlen (caps_str) + 1;
header.type = GstCudaIpcPktType::CONFIG;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = sizeof (GstCudaPid) + sizeof (gboolean) + caps_size;
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE + header.payload_size);
ptr = &buf[0];
memcpy (ptr, &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
*((GstCudaPid *) ptr) = pid;
ptr += sizeof (GstCudaPid);
*((gboolean *) ptr) = use_mmap;
ptr += sizeof (gboolean);
strcpy ((char *) ptr, caps_str);
g_free (caps_str);
return true;
}
bool
gst_cuda_ipc_pkt_parse_config (std::vector < guint8 > &buf, GstCudaPid * pid,
gboolean * use_mmap, GstCaps ** caps)
{
GstCudaIpcPacketHeader header;
const guint8 *ptr;
std::string str;
g_return_val_if_fail (buf.size () > GST_CUDA_IPC_PKT_HEADER_SIZE, false);
g_return_val_if_fail (caps, false);
ptr = &buf[0];
memcpy (&header, ptr, GST_CUDA_IPC_PKT_HEADER_SIZE);
if (header.type != GstCudaIpcPktType::CONFIG ||
header.magic != GST_CUDA_IPC_MAGIC_NUMBER ||
header.payload_size <= sizeof (GstCudaPid) + sizeof (gboolean)) {
return false;
}
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
memcpy (pid, ptr, sizeof (GstCudaPid));
ptr += sizeof (GstCudaPid);
memcpy (use_mmap, ptr, sizeof (gboolean));
ptr += sizeof (gboolean);
*caps = gst_caps_from_string ((const gchar *) ptr);
if (*caps == nullptr)
return false;
return true;
}
void
gst_cuda_ipc_pkt_build_need_data (std::vector < guint8 > &buf)
{
GstCudaIpcPacketHeader header;
header.type = GstCudaIpcPktType::NEED_DATA;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = 0;
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE);
memcpy (&buf[0], &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
}
/* *INDENT-OFF* */
bool
gst_cuda_ipc_pkt_build_have_data (std::vector < guint8 > &buf, GstClockTime pts,
const GstVideoInfo & info, const CUipcMemHandle & handle, GstCaps * caps)
{
GstCudaIpcPacketHeader header;
GstCudaIpcMemLayout layout;
guint8 *ptr;
gchar *caps_str = nullptr;
guint caps_size = 1;
if (caps) {
caps_str = gst_caps_serialize (caps, GST_SERIALIZE_FLAG_NONE);
if (!caps_str)
return false;
caps_size += strlen (caps_str) + 1;
}
header.type = GstCudaIpcPktType::HAVE_DATA;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = sizeof (GstClockTime) + sizeof (CUipcMemHandle) +
sizeof (GstCudaIpcMemLayout) + caps_size;
layout.size = layout.max_size = info.size;
layout.pitch = info.stride[0];
for (guint i = 0; i < 4; i++)
layout.offset[i] = info.offset[i];
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE + header.payload_size);
ptr = &buf[0];
memcpy (ptr, &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
memcpy (ptr, &pts, sizeof (GstClockTime));
ptr += sizeof (GstClockTime);
memcpy (ptr, &layout, sizeof (GstCudaIpcMemLayout));
ptr += sizeof (GstCudaIpcMemLayout);
memcpy (ptr, &handle, sizeof (CUipcMemHandle));
ptr += sizeof (CUipcMemHandle);
if (caps) {
*ptr = 1;
ptr++;
strcpy ((char *) ptr, caps_str);
} else {
*ptr = 0;
}
g_free (caps_str);
return true;
}
/* *INDENT-ON* */
bool
gst_cuda_ipc_pkt_parse_have_data (const std::vector < guint8 > &buf,
GstClockTime & pts, GstCudaIpcMemLayout & layout, CUipcMemHandle & handle,
GstCaps ** caps)
{
GstCudaIpcPacketHeader header;
const guint8 *ptr;
std::string str;
g_return_val_if_fail (buf.size () >=
GST_CUDA_IPC_PKT_HEADER_SIZE +
GST_CUDA_IPC_PKT_HAVE_DATA_PAYLOAD_MIN_SIZE, false);
g_return_val_if_fail (caps, false);
ptr = &buf[0];
memcpy (&header, ptr, GST_CUDA_IPC_PKT_HEADER_SIZE);
if (header.type != GstCudaIpcPktType::HAVE_DATA ||
header.magic != GST_CUDA_IPC_MAGIC_NUMBER ||
header.payload_size < GST_CUDA_IPC_PKT_HAVE_DATA_PAYLOAD_MIN_SIZE) {
return false;
}
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
memcpy (&pts, ptr, sizeof (GstClockTime));
ptr += sizeof (GstClockTime);
memcpy (&layout, ptr, sizeof (GstCudaIpcMemLayout));
ptr += sizeof (GstCudaIpcMemLayout);
memcpy (&handle, ptr, sizeof (CUipcMemHandle));
ptr += sizeof (CUipcMemHandle);
if (*ptr) {
ptr++;
*caps = gst_caps_from_string ((const gchar *) ptr);
if (*caps == nullptr)
return false;
}
return true;
}
/* *INDENT-OFF* */
bool
gst_cuda_ipc_pkt_build_have_mmap_data (std::vector<guint8> & buf,
GstClockTime pts, const GstVideoInfo & info, guint32 max_size,
GstCudaSharableHandle handle, GstCaps * caps)
{
GstCudaIpcPacketHeader header;
GstCudaIpcMemLayout layout;
guint8 *ptr;
gchar *caps_str = nullptr;
guint caps_size = 1;
if (caps) {
caps_str = gst_caps_serialize (caps, GST_SERIALIZE_FLAG_NONE);
if (!caps_str)
return false;
caps_size = strlen (caps_str) + 1;
}
header.type = GstCudaIpcPktType::HAVE_MMAP_DATA;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = sizeof (GstClockTime) + sizeof (GstCudaIpcMemLayout) +
sizeof (GstCudaSharableHandle) + caps_size;
layout.size = info.size;
layout.max_size = max_size;
layout.pitch = info.stride[0];
for (guint i = 0; i < 4; i++)
layout.offset[i] = info.offset[i];
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE + header.payload_size);
ptr = &buf[0];
memcpy (ptr, &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
memcpy (ptr, &pts, sizeof (GstClockTime));
ptr += sizeof (GstClockTime);
memcpy (ptr, &layout, sizeof (GstCudaIpcMemLayout));
ptr += sizeof (GstCudaIpcMemLayout);
*((GstCudaSharableHandle *) ptr) = handle;
ptr += sizeof (GstCudaSharableHandle);
if (caps) {
*ptr = 1;
ptr++;
strcpy ((char *) ptr, caps_str);
} else {
*ptr = 0;
}
g_free (caps_str);
return true;
}
/* *INDENT-ON* */
bool
gst_cuda_ipc_pkt_parse_have_mmap_data (const std::vector < guint8 > &buf,
GstClockTime & pts, GstCudaIpcMemLayout & layout,
GstCudaSharableHandle * handle, GstCaps ** caps)
{
GstCudaIpcPacketHeader header;
const guint8 *ptr;
std::string str;
g_return_val_if_fail (buf.size () >
GST_CUDA_IPC_PKT_HEADER_SIZE +
sizeof (GstClockTime) + sizeof (GstCudaIpcMemLayout) +
sizeof (GstCudaSharableHandle), false);
g_return_val_if_fail (caps, false);
ptr = &buf[0];
memcpy (&header, ptr, GST_CUDA_IPC_PKT_HEADER_SIZE);
if (header.type != GstCudaIpcPktType::HAVE_MMAP_DATA ||
header.magic != GST_CUDA_IPC_MAGIC_NUMBER ||
header.payload_size <=
sizeof (GstClockTime) + sizeof (GstCudaIpcMemLayout) +
sizeof (GstCudaSharableHandle)) {
return false;
}
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
memcpy (&pts, ptr, sizeof (GstClockTime));
ptr += sizeof (GstClockTime);
memcpy (&layout, ptr, sizeof (GstCudaIpcMemLayout));
ptr += sizeof (GstCudaIpcMemLayout);
*handle = *((GstCudaSharableHandle *) ptr);
ptr += sizeof (GstCudaSharableHandle);
if (*ptr) {
ptr++;
*caps = gst_caps_from_string ((const gchar *) ptr);
if (*caps == nullptr)
return false;
}
return true;
}
void
gst_cuda_ipc_pkt_build_read_done (std::vector < guint8 > &buf)
{
GstCudaIpcPacketHeader header;
header.type = GstCudaIpcPktType::READ_DONE;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = 0;
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE);
memcpy (&buf[0], &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
}
void
gst_cuda_ipc_pkt_build_release_data (std::vector < guint8 > &buf,
const CUipcMemHandle & handle)
{
GstCudaIpcPacketHeader header;
guint8 *ptr;
header.type = GstCudaIpcPktType::RELEASE_DATA;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = sizeof (CUipcMemHandle);
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE +
GST_CUDA_IPC_PKT_RELEASE_DATA_PAYLOAD_SIZE);
ptr = &buf[0];
memcpy (ptr, &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
memcpy (ptr, &handle, GST_CUDA_IPC_PKT_RELEASE_DATA_PAYLOAD_SIZE);
}
bool
gst_cuda_ipc_pkt_parse_release_data (std::vector < guint8 > &buf,
CUipcMemHandle & handle)
{
g_return_val_if_fail (buf.size () >=
GST_CUDA_IPC_PKT_HEADER_SIZE + GST_CUDA_IPC_PKT_RELEASE_DATA_PAYLOAD_SIZE,
false);
memcpy (&handle, &buf[0] + GST_CUDA_IPC_PKT_HEADER_SIZE,
GST_CUDA_IPC_PKT_RELEASE_DATA_PAYLOAD_SIZE);
return true;
}
void
gst_cuda_ipc_pkt_build_release_mmap_data (std::vector < guint8 > &buf,
GstCudaSharableHandle handle)
{
GstCudaIpcPacketHeader header;
guint8 *ptr;
header.type = GstCudaIpcPktType::RELEASE_MMAP_DATA;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = sizeof (GstCudaSharableHandle);
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE + header.payload_size);
ptr = &buf[0];
memcpy (ptr, &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
*((GstCudaSharableHandle *) ptr) = handle;
}
bool
gst_cuda_ipc_pkt_parse_release_mmap_data (std::vector < guint8 > &buf,
GstCudaSharableHandle * handle)
{
guint8 *ptr;
g_return_val_if_fail (buf.size () >=
GST_CUDA_IPC_PKT_HEADER_SIZE + sizeof (GstCudaSharableHandle), false);
ptr = &buf[0];
ptr += GST_CUDA_IPC_PKT_HEADER_SIZE;
*handle = *((GstCudaSharableHandle *) ptr);
return true;
}
void
gst_cuda_ipc_pkt_build_eos (std::vector < guint8 > &buf)
{
GstCudaIpcPacketHeader header;
header.type = GstCudaIpcPktType::EOS;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = 0;
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE);
memcpy (&buf[0], &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
}
void
gst_cuda_ipc_pkt_build_fin (std::vector < guint8 > &buf)
{
GstCudaIpcPacketHeader header;
header.type = GstCudaIpcPktType::FIN;
header.magic = GST_CUDA_IPC_MAGIC_NUMBER;
header.payload_size = 0;
buf.resize (GST_CUDA_IPC_PKT_HEADER_SIZE);
memcpy (&buf[0], &header, GST_CUDA_IPC_PKT_HEADER_SIZE);
}
std::string
gst_cuda_ipc_mem_handle_to_string (const CUipcMemHandle & handle)
{
std::string dump (68, '\0');
guint val[16];
for (guint i = 0; i < 16; i++) {
val[i] = *((guint *) (handle.reserved + i * 4));
}
sprintf (&dump[0], "%x%x%x%x-%x%x%x%x-%x%x%x%x-%x%x%x%x", val[0],
val[1], val[2], val[3], val[4], val[5], val[6], val[7], val[8],
val[9], val[10], val[11], val[12], val[13], val[14], val[15]);
return dump;
}
bool
gst_cuda_ipc_clock_is_system (GstClock * clock)
{
GstClockType clock_type = GST_CLOCK_TYPE_MONOTONIC;
GstClock *mclock;
if (G_OBJECT_TYPE (clock) != GST_TYPE_SYSTEM_CLOCK)
return false;
g_object_get (clock, "clock-type", &clock_type, nullptr);
if (clock_type != GST_CLOCK_TYPE_MONOTONIC)
return false;
mclock = gst_clock_get_master (clock);
if (!mclock)
return true;
gst_object_unref (mclock);
return false;
}
#ifdef G_OS_WIN32
/* *INDENT-OFF* */
static inline void rtrim(std::string &s) {
s.erase (std::find_if (s.rbegin(), s.rend(),
[](unsigned char ch) {
return !std::isspace (ch);
}).base (), s.end ());
}
/* *INDENT-ON* */
std::string
gst_cuda_ipc_win32_error_to_string (guint err)
{
wchar_t buffer[1024];
if (!FormatMessageW (FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM, nullptr, err, 0, buffer, 1024, nullptr)) {
return std::string ("");
}
std::wstring_convert < std::codecvt_utf8 < wchar_t >, wchar_t >converter;
std::string ret = converter.to_bytes (buffer);
rtrim (ret);
return ret;
}
#else
std::string
gst_cuda_ipc_win32_error_to_string (guint err)
{
return std::string ("");
}
#endif /* G_OS_WIN32 */
bool
gst_cuda_ipc_handle_is_equal (const CUipcMemHandle & handle,
const CUipcMemHandle & other)
{
if (memcmp (&handle, &other, sizeof (CUipcMemHandle)) == 0)
return true;
return false;
}