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pipewire/pinos/gst/gstpinosportsrc.c

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Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
/* GStreamer
* Copyright (C) <2015> Wim Taymans <wim.taymans@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.
*/
/**
* SECTION:element-pinosportsrc
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v pinosportsrc ! videoconvert ! ximagesink
* ]| Shows pinos output in an X window.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstpinosportsrc.h"
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <unistd.h>
#include <gio/gunixfdmessage.h>
#include <gst/net/gstnetclientclock.h>
#include <gst/allocators/gstfdmemory.h>
#include <gst/video/video.h>
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
static GQuark process_mem_data_quark;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
GST_DEBUG_CATEGORY_STATIC (pinos_port_src_debug);
#define GST_CAT_DEFAULT pinos_port_src_debug
enum
{
PROP_0,
PROP_PORT,
};
#define PINOSS_VIDEO_CAPS GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL)
static GstStaticPadTemplate gst_pinos_port_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY
);
#define gst_pinos_port_src_parent_class parent_class
G_DEFINE_TYPE (GstPinosPortSrc, gst_pinos_port_src, GST_TYPE_PUSH_SRC);
static GstStateChangeReturn
gst_pinos_port_src_change_state (GstElement * element, GstStateChange transition);
static GstCaps *gst_pinos_port_src_getcaps (GstBaseSrc * bsrc, GstCaps * filter);
static GstFlowReturn gst_pinos_port_src_create (GstPushSrc * psrc,
GstBuffer ** buffer);
static gboolean gst_pinos_port_src_start (GstBaseSrc * basesrc);
static gboolean gst_pinos_port_src_stop (GstBaseSrc * basesrc);
static gboolean gst_pinos_port_src_event (GstBaseSrc * src, GstEvent * event);
static gboolean gst_pinos_port_src_query (GstBaseSrc * src, GstQuery * query);
typedef struct {
GstPinosPortSrc *src;
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
PinosPacketProcessMem p;
} ProcessMemData;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
static void
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
process_mem_data_destroy (gpointer user_data)
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
{
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
ProcessMemData *data = user_data;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
GstPinosPortSrc *this = data->src;
PinosBufferBuilder b;
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
PinosPacketReuseMem r;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
PinosBuffer pbuf;
r.id = data->p.id;
GST_DEBUG_OBJECT (this, "destroy %d", r.id);
reintroduce channels Bring back the channel object. Making a node and port on the client side was rather awkward because of the async nature of many methods. It feels better to have a specific communication channel object to interface with a server side port. Use port activate/deactivate to start/stop streams Remove links from the ports. We let other objects install a callback on the port to receive and route buffers.
2016-07-20 17:29:34 +02:00
pinos_buffer_builder_init (&b);
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
pinos_buffer_builder_add_reuse_mem (&b, &r);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
pinos_buffer_builder_end (&b, &pbuf);
pinos_port_send_buffer (this->port, &pbuf, NULL);
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
pinos_buffer_unref (&pbuf);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
gst_object_unref (this);
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
g_slice_free (ProcessMemData, data);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
}
reintroduce channels Bring back the channel object. Making a node and port on the client side was rather awkward because of the async nature of many methods. It feels better to have a specific communication channel object to interface with a server side port. Use port activate/deactivate to start/stop streams Remove links from the ports. We let other objects install a callback on the port to receive and route buffers.
2016-07-20 17:29:34 +02:00
static gboolean
on_received_buffer (PinosPort *port,
PinosBuffer *pbuf,
GError **error,
gpointer user_data)
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
{
GstPinosPortSrc *this = user_data;
PinosBufferIter it;
GstBuffer *buf = NULL;
GST_LOG_OBJECT (this, "got new buffer");
pinos_buffer_iter_init (&it, pbuf);
while (pinos_buffer_iter_next (&it)) {
switch (pinos_buffer_iter_get_type (&it)) {
case PINOS_PACKET_TYPE_HEADER:
{
PinosPacketHeader hdr;
if (!pinos_buffer_iter_parse_header (&it, &hdr))
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
break;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
if (buf == NULL)
buf = gst_buffer_new ();
GST_INFO ("pts %" G_GUINT64_FORMAT ", dts_offset %"G_GUINT64_FORMAT, hdr.pts, hdr.dts_offset);
if (GST_CLOCK_TIME_IS_VALID (hdr.pts)) {
GST_BUFFER_PTS (buf) = hdr.pts;
if (GST_BUFFER_PTS (buf) + hdr.dts_offset > 0)
GST_BUFFER_DTS (buf) = GST_BUFFER_PTS (buf) + hdr.dts_offset;
}
GST_BUFFER_OFFSET (buf) = hdr.seq;
break;
}
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
case PINOS_PACKET_TYPE_ADD_MEM:
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
{
GstMemory *fdmem = NULL;
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
PinosPacketAddMem p;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
int fd;
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
if (!pinos_buffer_iter_parse_add_mem (&it, &p))
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
break;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
fd = pinos_buffer_get_fd (pbuf, p.fd_index);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
if (fd == -1)
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
break;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
fdmem = gst_fd_allocator_alloc (this->fd_allocator, dup (fd),
p.offset + p.size, GST_FD_MEMORY_FLAG_NONE);
gst_memory_resize (fdmem, p.offset, p.size);
g_hash_table_insert (this->mem_ids, GINT_TO_POINTER (p.id), fdmem);
break;
}
case PINOS_PACKET_TYPE_REMOVE_MEM:
{
PinosPacketRemoveMem p;
if (!pinos_buffer_iter_parse_remove_mem (&it, &p))
break;
g_hash_table_remove (this->mem_ids, GINT_TO_POINTER (p.id));
break;
}
case PINOS_PACKET_TYPE_PROCESS_MEM:
{
GstMemory *fdmem = NULL;
ProcessMemData data;
if (!pinos_buffer_iter_parse_process_mem (&it, &data.p))
break;
if (!(fdmem = g_hash_table_lookup (this->mem_ids, GINT_TO_POINTER (data.p.id))))
break;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
if (buf == NULL)
buf = gst_buffer_new ();
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
fdmem = gst_memory_share (fdmem, data.p.offset, data.p.size);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
gst_buffer_append_memory (buf, fdmem);
data.src = gst_object_ref (this);
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (fdmem),
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
process_mem_data_quark,
g_slice_dup (ProcessMemData, &data),
process_mem_data_destroy);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
break;
}
case PINOS_PACKET_TYPE_FORMAT_CHANGE:
{
PinosPacketFormatChange change;
GstCaps *caps;
if (!pinos_buffer_iter_parse_format_change (&it, &change))
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
break;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
GST_DEBUG ("got format change %d %s", change.id, change.format);
caps = gst_caps_from_string (change.format);
gst_base_src_set_caps (GST_BASE_SRC (this), caps);
gst_caps_unref (caps);
break;
}
default:
break;
}
}
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
pinos_buffer_iter_end (&it);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
if (buf) {
g_queue_push_tail (&this->queue, buf);
g_cond_signal (&this->cond);
}
reintroduce channels Bring back the channel object. Making a node and port on the client side was rather awkward because of the async nature of many methods. It feels better to have a specific communication channel object to interface with a server side port. Use port activate/deactivate to start/stop streams Remove links from the ports. We let other objects install a callback on the port to receive and route buffers.
2016-07-20 17:29:34 +02:00
return TRUE;
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
}
static void
set_port (GstPinosPortSrc *this, PinosPort *port)
{
g_debug ("set port %p", port);
if (this->port)
g_object_unref (this->port);
this->port = port;
pinos_port_set_received_buffer_cb (port, on_received_buffer, this, NULL);
}
static void
gst_pinos_port_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (object);
switch (prop_id) {
case PROP_PORT:
set_port (this, g_value_dup_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_pinos_port_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (object);
switch (prop_id) {
case PROP_PORT:
g_value_set_object (value, this->port);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstClock *
gst_pinos_port_src_provide_clock (GstElement * elem)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (elem);
GstClock *clock;
GST_OBJECT_LOCK (this);
if (!GST_OBJECT_FLAG_IS_SET (this, GST_ELEMENT_FLAG_PROVIDE_CLOCK))
goto clock_disabled;
if (this->clock)
clock = GST_CLOCK_CAST (gst_object_ref (this->clock));
else
clock = NULL;
GST_OBJECT_UNLOCK (this);
return clock;
/* ERRORS */
clock_disabled:
{
GST_DEBUG_OBJECT (this, "clock provide disabled");
GST_OBJECT_UNLOCK (this);
return NULL;
}
}
static gboolean
gst_pinos_port_src_unlock (GstBaseSrc * basesrc)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (basesrc);
GST_DEBUG_OBJECT (this, "setting flushing");
GST_OBJECT_LOCK (this);
this->flushing = TRUE;
g_cond_signal (&this->cond);
GST_OBJECT_UNLOCK (this);
return TRUE;
}
static gboolean
gst_pinos_port_src_unlock_stop (GstBaseSrc * basesrc)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (basesrc);
GST_DEBUG_OBJECT (this, "unsetting flushing");
this->flushing = FALSE;
return TRUE;
}
static void
gst_pinos_port_src_finalize (GObject * object)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (object);
g_queue_foreach (&this->queue, (GFunc) gst_mini_object_unref, NULL);
g_queue_clear (&this->queue);
g_cond_clear (&this->cond);
g_object_unref (this->fd_allocator);
g_object_unref (this->port);
if (this->clock)
gst_object_unref (this->clock);
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
g_hash_table_unref (this->mem_ids);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_pinos_port_src_class_init (GstPinosPortSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpushsrc_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesrc_class = (GstBaseSrcClass *) klass;
gstpushsrc_class = (GstPushSrcClass *) klass;
gobject_class->finalize = gst_pinos_port_src_finalize;
gobject_class->set_property = gst_pinos_port_src_set_property;
gobject_class->get_property = gst_pinos_port_src_get_property;
g_object_class_install_property (gobject_class, PROP_PORT,
g_param_spec_object ("port", "Port",
"The pinos port object",
PINOS_TYPE_PORT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gstelement_class->provide_clock = gst_pinos_port_src_provide_clock;
gstelement_class->change_state = gst_pinos_port_src_change_state;
gst_element_class_set_static_metadata (gstelement_class,
"Pinos source", "Source/Video",
"Uses pinos to create video", "Wim Taymans <wim.taymans@gmail.com>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_pinos_port_src_template));
gstbasesrc_class->get_caps = gst_pinos_port_src_getcaps;
gstbasesrc_class->unlock = gst_pinos_port_src_unlock;
gstbasesrc_class->unlock_stop = gst_pinos_port_src_unlock_stop;
gstbasesrc_class->start = gst_pinos_port_src_start;
gstbasesrc_class->stop = gst_pinos_port_src_stop;
gstbasesrc_class->event = gst_pinos_port_src_event;
gstbasesrc_class->query = gst_pinos_port_src_query;
gstpushsrc_class->create = gst_pinos_port_src_create;
GST_DEBUG_CATEGORY_INIT (pinos_port_src_debug, "pinosportsrc", 0,
"Pinos Source");
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
process_mem_data_quark = g_quark_from_static_string ("GstPinosPortSrcProcessMemQuark");
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
}
static void
gst_pinos_port_src_init (GstPinosPortSrc * src)
{
/* we operate in time */
gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
GST_OBJECT_FLAG_SET (src, GST_ELEMENT_FLAG_PROVIDE_CLOCK);
g_cond_init (&src->cond);
g_queue_init (&src->queue);
src->fd_allocator = gst_fd_allocator_new ();
work on stream negotiation and start Add more buffer types to add and remove memory shared memory between the server and client. We would like to send buffers only once and then simply reference them by index. Do format negotiation and stream start with a START message.
2016-07-21 18:38:24 +02:00
src->mem_ids = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) gst_memory_unref);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
}
static void
parse_stream_properties (GstPinosPortSrc *this, PinosProperties *props)
{
const gchar *var;
var = pinos_properties_get (props, "pinos.latency.is-live");
this->is_live = var ? (atoi (var) == 1) : FALSE;
gst_base_src_set_live (GST_BASE_SRC (this), this->is_live);
var = pinos_properties_get (props, "pinos.latency.min");
this->min_latency = var ? (GstClockTime) atoi (var) : 0;
var = pinos_properties_get (props, "pinos.latency.max");
this->max_latency = var ? (GstClockTime) atoi (var) : GST_CLOCK_TIME_NONE;
var = pinos_properties_get (props, "pinos.clock.type");
if (var != NULL) {
GST_DEBUG_OBJECT (this, "got clock type %s", var);
if (strcmp (var, "gst.net.time.provider") == 0) {
const gchar *address;
gint port;
GstClockTime base_time;
address = pinos_properties_get (props, "pinos.clock.address");
port = atoi (pinos_properties_get (props, "pinos.clock.port"));
base_time = atoll (pinos_properties_get (props, "pinos.clock.base-time"));
GST_DEBUG_OBJECT (this, "making net clock for %s:%d %" G_GUINT64_FORMAT, address, port, base_time);
if (this->clock)
gst_object_unref (this->clock);
this->clock = gst_net_client_clock_new ("pinosclock", address, port, base_time);
gst_element_post_message (GST_ELEMENT_CAST (this),
gst_message_new_clock_provide (GST_OBJECT_CAST (this),
this->clock, TRUE));
}
}
}
static GstCaps *
gst_pinos_port_src_getcaps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstPinosPortSrc *this = GST_PINOS_PORT_SRC (bsrc);
GBytes *format;
GstCaps *caps = NULL;
GST_DEBUG ("getting caps");
g_object_get (this->port, "format", &format, NULL);
if (format) {
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
GST_DEBUG ("have format %s", (gchar *)g_bytes_get_data (format, NULL));
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
caps = gst_caps_from_string (g_bytes_get_data (format, NULL));
g_bytes_unref (format);
}
return caps;
}
static gboolean
gst_pinos_port_src_event (GstBaseSrc * src, GstEvent * event)
{
gboolean res = FALSE;
GstPinosPortSrc *this;
this = GST_PINOS_PORT_SRC (src);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_UPSTREAM:
if (gst_video_event_is_force_key_unit (event)) {
GstClockTime running_time;
gboolean all_headers;
guint count;
PinosPacketRefreshRequest refresh;
PinosBufferBuilder b;
PinosBuffer pbuf;
gst_video_event_parse_upstream_force_key_unit (event,
&running_time, &all_headers, &count);
refresh.last_id = 0;
refresh.request_type = all_headers ? 1 : 0;
refresh.pts = running_time;
reintroduce channels Bring back the channel object. Making a node and port on the client side was rather awkward because of the async nature of many methods. It feels better to have a specific communication channel object to interface with a server side port. Use port activate/deactivate to start/stop streams Remove links from the ports. We let other objects install a callback on the port to receive and route buffers.
2016-07-20 17:29:34 +02:00
pinos_buffer_builder_init (&b);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
pinos_buffer_builder_add_refresh_request (&b, &refresh);
pinos_buffer_builder_end (&b, &pbuf);
GST_DEBUG_OBJECT (this, "send refresh request");
pinos_port_send_buffer (this->port, &pbuf, NULL);
buffer: improve memory management Add refcounting to buffers. Use static memory on ports for buffer input and output memory. Improve negotiation, let format and properties be negotiated on ports as the data passes. Improve some debug info.
2016-05-17 20:14:06 +02:00
pinos_buffer_unref (&pbuf);
Rework how clients connect. Add buffer flags. The idea is to make it possible to easily check when a buffer contains control information that we need to parse to update the port fields. Make the client create remote nodes and ports and set up proxies for them. Make a port base class implementing most of the logic to pass buffers locally and remotely. Remove most code from stream.c, it's now in the port. Make a portsink and portsrc that can write and read to/from any port. We use these in the server to send and receive data. Rework format negotiation. The final format is now sent in-line before the data. The server will select a format on output ports.
2016-05-17 09:38:30 +02:00
res = TRUE;
} else {
res = GST_BASE_SRC_CLASS (parent_class)->event (src, event);
}
break;
default:
res = GST_BASE_SRC_CLASS (parent_class)->event (src, event);
break;
}
return res;
}
static gboolean
gst_pinos_port_src_query (GstBaseSrc * src, GstQuery * query)
{
gboolean res = FALSE;
GstPinosPortSrc *this;
this = GST_PINOS_PORT_SRC (src);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
gst_query_set_latency (query, this->is_live, this->min_latency, this->max_latency);
res = TRUE;
break;
default:
res = GST_BASE_SRC_CLASS (parent_class)->query (src, query);
break;
}
return res;
}
static GstFlowReturn
gst_pinos_port_src_create (GstPushSrc * psrc, GstBuffer ** buffer)
{
GstPinosPortSrc *this;
GstClockTime pts, dts, base_time;
this = GST_PINOS_PORT_SRC (psrc);
GST_OBJECT_LOCK (this);
while (TRUE) {
if (this->flushing)
goto streaming_stopped;
*buffer = g_queue_pop_head (&this->queue);
if (*buffer != NULL)
break;
g_cond_wait (&this->cond, GST_OBJECT_GET_LOCK (this));
}
GST_OBJECT_UNLOCK (this);
base_time = GST_ELEMENT_CAST (psrc)->base_time;
pts = GST_BUFFER_PTS (*buffer);
dts = GST_BUFFER_DTS (*buffer);
if (GST_CLOCK_TIME_IS_VALID (pts))
pts = (pts >= base_time ? pts - base_time : 0);
if (GST_CLOCK_TIME_IS_VALID (dts))
dts = (dts >= base_time ? dts - base_time : 0);
GST_INFO ("pts %" G_GUINT64_FORMAT ", dts %"G_GUINT64_FORMAT
", base-time %"GST_TIME_FORMAT" -> %"GST_TIME_FORMAT", %"GST_TIME_FORMAT,
GST_BUFFER_PTS (*buffer), GST_BUFFER_DTS (*buffer), GST_TIME_ARGS (base_time),
GST_TIME_ARGS (pts), GST_TIME_ARGS (dts));
GST_BUFFER_PTS (*buffer) = pts;
GST_BUFFER_DTS (*buffer) = dts;
return GST_FLOW_OK;
streaming_stopped:
{
GST_OBJECT_UNLOCK (this);
return GST_FLOW_FLUSHING;
}
}
static gboolean
gst_pinos_port_src_start (GstBaseSrc * basesrc)
{
PinosProperties *props;
GstPinosPortSrc *this;
this = GST_PINOS_PORT_SRC (basesrc);
props = pinos_port_get_properties (this->port);
if (props)
parse_stream_properties (this, props);
return TRUE;
}
static void
clear_queue (GstPinosPortSrc *this)
{
g_queue_foreach (&this->queue, (GFunc) gst_mini_object_unref, NULL);
g_queue_clear (&this->queue);
}
static gboolean
gst_pinos_port_src_stop (GstBaseSrc * basesrc)
{
GstPinosPortSrc *this;
this = GST_PINOS_PORT_SRC (basesrc);
clear_queue (this);
return TRUE;
}
static GstStateChangeReturn
gst_pinos_port_src_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
/* uncork and start recording */
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
/* stop recording ASAP by corking */
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (gst_base_src_is_live (GST_BASE_SRC (element)))
ret = GST_STATE_CHANGE_NO_PREROLL;
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
Reference in a new issue Copy permalink