gstreamer/subprojects/gst-plugins-bad/gst/unixfd/gstunixfd.h
Xavier Claessens f076a9bf2f unixfd: Serialize buffer metas
Serialize every GstMeta that supports serialization into the NEW_BUFFER
payload. This is especially important for GstVideoMeta in the case of
multiplanar buffers, or if stride!=width.

Sponsored-by: Netflix Inc.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5355>
2023-12-17 16:13:26 +00:00

89 lines
2.5 KiB
C

/* GStreamer unix file-descriptor source/sink
*
* Copyright (C) 2023 Netflix Inc.
* Author: Xavier Claessens <xavier.claessens@collabora.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.
*/
#pragma once
#include <gst/gst.h>
#include <gio/gio.h>
#include <gio/gunixfdlist.h>
G_BEGIN_DECLS
typedef enum
{
COMMAND_TYPE_NEW_BUFFER = 0,
COMMAND_TYPE_RELEASE_BUFFER = 1,
COMMAND_TYPE_CAPS = 2,
COMMAND_TYPE_EOS = 3,
} CommandType;
typedef enum
{
MEMORY_TYPE_DEFAULT = 0,
MEMORY_TYPE_DMABUF = 1,
MEMORY_TYPE_LAST,
} MemoryType;
typedef struct {
guint64 size;
guint64 offset;
} MemoryPayload;
typedef struct {
guint64 id;
guint64 pts;
guint64 dts;
guint64 duration;
guint64 offset;
guint64 offset_end;
guint32 flags;
guint8 type;
guint8 n_memory;
guint16 n_meta;
MemoryPayload memories[];
} NewBufferPayload;
typedef struct {
guint64 id;
} ReleaseBufferPayload;
gboolean gst_unix_fd_send_command(GSocket * socket, CommandType type,
GUnixFDList * fds, const guint8 * payload, gsize payload_size,
GError ** error);
gboolean gst_unix_fd_receive_command (GSocket *socket,
GCancellable *cancellable, CommandType *type, GUnixFDList **fds,
guint8 **payload, gsize *payload_size, GError **error);
gboolean gst_unix_fd_parse_new_buffer (guint8 *payload, gsize payload_size,
NewBufferPayload **new_buffer, guint32 *consumed);
gboolean gst_unix_fd_parse_release_buffer(guint8 *payload, gsize payload_size,
ReleaseBufferPayload **release_buffer);
gboolean gst_unix_fd_parse_caps (guint8 *payload, gsize payload_size,
gchar **caps_str);
GSocket *gst_unix_fd_socket_new(const gchar *socket_path,
GUnixSocketAddressType socket_type, GSocketAddress **address,
GError **error);
GST_ELEMENT_REGISTER_DECLARE (unixfdsrc);
GST_ELEMENT_REGISTER_DECLARE (unixfdsink);
G_END_DECLS