mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4f846540cb
Windows supports various IPC methods but that's completely different form that of *nix from implementation point of view. So, instead of adding shared memory functionality to existing shm plugin, new WIN32 shared memory source/sink elements are implemented in this commit. Each videosink (server) and videosrc (client) pair will communicate using WIN32 named pipe and thus user should configure unique/proper pipe name to them (e.g., \\.\pipe\MyPipeName). Once connection is established, videosink will create named shared memory object per frame and client will be able to consume the object (i.e., memory mapped file handle) without additional copy operation. Note that implementations under "protocol" directory are almost pure C/C++ with WIN32 APIs except for a few defines and debug functions. So, applications can take only the protocol part so that the application can send/receive shared-memory object from/to the other end even if it's not an actual GStreamer element. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3441>
244 lines
8.4 KiB
C
244 lines
8.4 KiB
C
/* GStreamer
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* Copyright (C) 2022 Seungha Yang <seungha@centricular.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <windows.h>
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#include <gst/gst.h>
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G_BEGIN_DECLS
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/*
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* Communication Sequence
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*
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* +--------+ +--------+
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* | client | | server |
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* +--------+ +--------+
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* | |
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* +--------- NEED-DATA ---------->|
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* | +-------+
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* | | prepare named
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* | | shared-memory
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* | +<------+
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* +<-- HAVE-DATA (w/ shm name) ---|
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* +--------+ |
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* Open named | |
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* shared-memory | |
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* +------->+ |
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* |--------- READ-DONE ---------->|
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*/
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typedef enum
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{
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WIN32_IPC_PKT_UNKNOWN,
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WIN32_IPC_PKT_NEED_DATA,
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WIN32_IPC_PKT_HAVE_DATA,
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WIN32_IPC_PKT_READ_DONE,
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} Win32IpcPktType;
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/* Same as GstVideoFormat */
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typedef enum
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{
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WIN32_IPC_VIDEO_FORMAT_UNKNOWN,
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WIN32_IPC_VIDEO_FORMAT_ENCODED,
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WIN32_IPC_VIDEO_FORMAT_I420,
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WIN32_IPC_VIDEO_FORMAT_YV12,
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WIN32_IPC_VIDEO_FORMAT_YUY2,
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WIN32_IPC_VIDEO_FORMAT_UYVY,
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WIN32_IPC_VIDEO_FORMAT_AYUV,
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WIN32_IPC_VIDEO_FORMAT_RGBx,
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WIN32_IPC_VIDEO_FORMAT_BGRx,
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WIN32_IPC_VIDEO_FORMAT_xRGB,
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WIN32_IPC_VIDEO_FORMAT_xBGR,
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WIN32_IPC_VIDEO_FORMAT_RGBA,
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WIN32_IPC_VIDEO_FORMAT_BGRA,
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WIN32_IPC_VIDEO_FORMAT_ARGB,
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WIN32_IPC_VIDEO_FORMAT_ABGR,
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WIN32_IPC_VIDEO_FORMAT_RGB,
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WIN32_IPC_VIDEO_FORMAT_BGR,
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WIN32_IPC_VIDEO_FORMAT_Y41B,
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WIN32_IPC_VIDEO_FORMAT_Y42B,
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WIN32_IPC_VIDEO_FORMAT_YVYU,
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WIN32_IPC_VIDEO_FORMAT_Y444,
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WIN32_IPC_VIDEO_FORMAT_v210,
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WIN32_IPC_VIDEO_FORMAT_v216,
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WIN32_IPC_VIDEO_FORMAT_NV12,
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WIN32_IPC_VIDEO_FORMAT_NV21,
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WIN32_IPC_VIDEO_FORMAT_GRAY8,
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WIN32_IPC_VIDEO_FORMAT_GRAY16_BE,
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WIN32_IPC_VIDEO_FORMAT_GRAY16_LE,
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WIN32_IPC_VIDEO_FORMAT_v308,
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WIN32_IPC_VIDEO_FORMAT_RGB16,
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WIN32_IPC_VIDEO_FORMAT_BGR16,
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WIN32_IPC_VIDEO_FORMAT_RGB15,
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WIN32_IPC_VIDEO_FORMAT_BGR15,
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WIN32_IPC_VIDEO_FORMAT_UYVP,
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WIN32_IPC_VIDEO_FORMAT_A420,
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WIN32_IPC_VIDEO_FORMAT_RGB8P,
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WIN32_IPC_VIDEO_FORMAT_YUV9,
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WIN32_IPC_VIDEO_FORMAT_YVU9,
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WIN32_IPC_VIDEO_FORMAT_IYU1,
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WIN32_IPC_VIDEO_FORMAT_ARGB64,
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WIN32_IPC_VIDEO_FORMAT_AYUV64,
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WIN32_IPC_VIDEO_FORMAT_r210,
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WIN32_IPC_VIDEO_FORMAT_I420_10BE,
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WIN32_IPC_VIDEO_FORMAT_I420_10LE,
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WIN32_IPC_VIDEO_FORMAT_I422_10BE,
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WIN32_IPC_VIDEO_FORMAT_I422_10LE,
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WIN32_IPC_VIDEO_FORMAT_Y444_10BE,
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WIN32_IPC_VIDEO_FORMAT_Y444_10LE,
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WIN32_IPC_VIDEO_FORMAT_GBR,
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WIN32_IPC_VIDEO_FORMAT_GBR_10BE,
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WIN32_IPC_VIDEO_FORMAT_GBR_10LE,
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WIN32_IPC_VIDEO_FORMAT_NV16,
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WIN32_IPC_VIDEO_FORMAT_NV24,
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WIN32_IPC_VIDEO_FORMAT_NV12_64Z32,
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WIN32_IPC_VIDEO_FORMAT_A420_10BE,
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WIN32_IPC_VIDEO_FORMAT_A420_10LE,
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WIN32_IPC_VIDEO_FORMAT_A422_10BE,
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WIN32_IPC_VIDEO_FORMAT_A422_10LE,
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WIN32_IPC_VIDEO_FORMAT_A444_10BE,
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WIN32_IPC_VIDEO_FORMAT_A444_10LE,
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WIN32_IPC_VIDEO_FORMAT_NV61,
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WIN32_IPC_VIDEO_FORMAT_P010_10BE,
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WIN32_IPC_VIDEO_FORMAT_P010_10LE,
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WIN32_IPC_VIDEO_FORMAT_IYU2,
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WIN32_IPC_VIDEO_FORMAT_VYUY,
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WIN32_IPC_VIDEO_FORMAT_GBRA,
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WIN32_IPC_VIDEO_FORMAT_GBRA_10BE,
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WIN32_IPC_VIDEO_FORMAT_GBRA_10LE,
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WIN32_IPC_VIDEO_FORMAT_GBR_12BE,
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WIN32_IPC_VIDEO_FORMAT_GBR_12LE,
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WIN32_IPC_VIDEO_FORMAT_GBRA_12BE,
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WIN32_IPC_VIDEO_FORMAT_GBRA_12LE,
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WIN32_IPC_VIDEO_FORMAT_I420_12BE,
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WIN32_IPC_VIDEO_FORMAT_I420_12LE,
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WIN32_IPC_VIDEO_FORMAT_I422_12BE,
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WIN32_IPC_VIDEO_FORMAT_I422_12LE,
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WIN32_IPC_VIDEO_FORMAT_Y444_12BE,
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WIN32_IPC_VIDEO_FORMAT_Y444_12LE,
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WIN32_IPC_VIDEO_FORMAT_GRAY10_LE32,
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WIN32_IPC_VIDEO_FORMAT_NV12_10LE32,
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WIN32_IPC_VIDEO_FORMAT_NV16_10LE32,
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WIN32_IPC_VIDEO_FORMAT_NV12_10LE40,
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WIN32_IPC_VIDEO_FORMAT_Y210,
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WIN32_IPC_VIDEO_FORMAT_Y410,
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WIN32_IPC_VIDEO_FORMAT_VUYA,
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WIN32_IPC_VIDEO_FORMAT_BGR10A2_LE,
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WIN32_IPC_VIDEO_FORMAT_RGB10A2_LE,
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WIN32_IPC_VIDEO_FORMAT_Y444_16BE,
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WIN32_IPC_VIDEO_FORMAT_Y444_16LE,
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WIN32_IPC_VIDEO_FORMAT_P016_BE,
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WIN32_IPC_VIDEO_FORMAT_P016_LE,
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WIN32_IPC_VIDEO_FORMAT_P012_BE,
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WIN32_IPC_VIDEO_FORMAT_P012_LE,
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WIN32_IPC_VIDEO_FORMAT_Y212_BE,
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WIN32_IPC_VIDEO_FORMAT_Y212_LE,
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WIN32_IPC_VIDEO_FORMAT_Y412_BE,
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WIN32_IPC_VIDEO_FORMAT_Y412_LE,
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WIN32_IPC_VIDEO_FORMAT_NV12_4L4,
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WIN32_IPC_VIDEO_FORMAT_NV12_32L32,
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WIN32_IPC_VIDEO_FORMAT_RGBP,
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WIN32_IPC_VIDEO_FORMAT_BGRP,
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WIN32_IPC_VIDEO_FORMAT_AV12,
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WIN32_IPC_VIDEO_FORMAT_ARGB64_LE,
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WIN32_IPC_VIDEO_FORMAT_ARGB64_BE,
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WIN32_IPC_VIDEO_FORMAT_RGBA64_LE,
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WIN32_IPC_VIDEO_FORMAT_RGBA64_BE,
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WIN32_IPC_VIDEO_FORMAT_BGRA64_LE,
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WIN32_IPC_VIDEO_FORMAT_BGRA64_BE,
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WIN32_IPC_VIDEO_FORMAT_ABGR64_LE,
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WIN32_IPC_VIDEO_FORMAT_ABGR64_BE,
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WIN32_IPC_VIDEO_FORMAT_NV12_16L32S,
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WIN32_IPC_VIDEO_FORMAT_NV12_8L128,
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WIN32_IPC_VIDEO_FORMAT_NV12_10BE_8L128,
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} Win32IpcVideoFormat;
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typedef struct
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{
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Win32IpcVideoFormat format;
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UINT32 width;
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UINT32 height;
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UINT32 fps_n;
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UINT32 fps_d;
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UINT32 par_n;
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UINT32 par_d;
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/* the size of memory */
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UINT64 size;
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/* plane offsets */
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UINT64 offset[4];
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/* stride of each plane */
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UINT32 stride[4];
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/* QPC time */
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UINT64 qpc;
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} Win32IpcVideoInfo;
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/* 1 byte (type) + 8 byte (seq-num) */
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#define WIN32_IPC_PKT_NEED_DATA_SIZE 9
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/* 1 byte (type) + 8 byte (seq-num) + N bytes (name) + 4 (format) +
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* 4 (width) + 4 (height) + 4 (fps_n) + 4 (fps_d) + 4 (par_n) + 4 (par_d) +
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* 8 (size) + 8 * 4 (offset) + 4 * 4 (stride) + 8 (timestamp) */
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#define WIN32_IPC_PKT_HAVE_DATA_SIZE 101
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/* 1 byte (type) + 8 byte (seq-num) */
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#define WIN32_IPC_PKT_READ_DONE_SIZE 5
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const char * win32_ipc_pkt_type_to_string (Win32IpcPktType type);
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Win32IpcPktType win32_ipc_pkt_type_from_raw (UINT8 type);
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UINT8 win32_ipc_pkt_type_to_raw (Win32IpcPktType type);
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UINT32 win32_ipc_pkt_build_need_data (UINT8 * pkt,
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UINT32 pkt_size,
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UINT64 seq_num);
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BOOL win32_ipc_pkt_parse_need_data (UINT8 * pkt,
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UINT32 pkt_size,
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UINT64 * seq_num);
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UINT32 win32_ipc_pkt_build_have_data (UINT8 * pkt,
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UINT32 pkt_size,
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UINT64 seq_num,
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const char * mmf_name,
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const Win32IpcVideoInfo * info);
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BOOL win32_ipc_pkt_parse_have_data (UINT8 * pkt,
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UINT32 pkt_size,
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UINT64 * seq_num,
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char * mmf_name,
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Win32IpcVideoInfo * info);
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UINT32 win32_ipc_pkt_build_read_done (UINT8 * pkt,
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UINT32 pkt_size,
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UINT64 seq_num);
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BOOL win32_ipc_pkt_parse_read_done (UINT8 * pkt,
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UINT32 pkt_size,
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UINT64 * seq_num);
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G_END_DECLS
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