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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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2280 lines
75 KiB
C
2280 lines
75 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
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* Copyright (C) 2006 Wim Taymans <wim at fluendo dot com>
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* Copyright (C) <2011> Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-multihandlesink
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* @title: multihandlesink
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* @see_also: tcpserversink
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*
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* This plugin writes incoming data to a set of file descriptors. The
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* file descriptors can be added to multihandlesink by emitting the #GstMultiHandleSink::add signal.
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* For each descriptor added, the #GstMultiHandleSink::client-added signal will be called.
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*
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* A client can also be added with the #GstMultiHandleSink::add-full signal
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* that allows for more control over what and how much data a client
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* initially receives.
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*
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* Clients can be removed from multihandlesink by emitting the #GstMultiHandleSink::remove signal. For
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* each descriptor removed, the #GstMultiHandleSink::client-removed signal will be called. The
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* #GstMultiHandleSink::client-removed signal can also be fired when multihandlesink decides that a
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* client is not active anymore or, depending on the value of the
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* #GstMultiHandleSink:recover-policy property, if the client is reading too slowly.
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* In all cases, multihandlesink will never close a file descriptor itself.
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* The user of multihandlesink is responsible for closing all file descriptors.
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* This can for example be done in response to the #GstMultiHandleSink::client-fd-removed signal.
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* Note that multihandlesink still has a reference to the file descriptor when the
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* #GstMultiHandleSink::client-removed signal is emitted, so that "get-stats" can be performed on
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* the descriptor; it is therefore not safe to close the file descriptor in
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* the #GstMultiHandleSink::client-removed signal handler, and you should use the
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* #GstMultiHandleSink::client-fd-removed signal to safely close the fd.
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*
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* Multisocketsink internally keeps a queue of the incoming buffers and uses a
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* separate thread to send the buffers to the clients. This ensures that no
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* client write can block the pipeline and that clients can read with different
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* speeds.
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*
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* When adding a client to multihandlesink, the #GstMultiHandleSink:sync-method property will define
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* which buffer in the queued buffers will be sent first to the client. Clients
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* can be sent the most recent buffer (which might not be decodable by the
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* client if it is not a keyframe), the next keyframe received in
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* multihandlesink (which can take some time depending on the keyframe rate), or the
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* last received keyframe (which will cause a simple burst-on-connect).
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* Multisocketsink will always keep at least one keyframe in its internal buffers
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* when the sync-mode is set to latest-keyframe.
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*
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* There are additional values for the #GstMultiHandleSink:sync-method
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* property to allow finer control over burst-on-connect behaviour. By selecting
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* the 'burst' method a minimum burst size can be chosen, 'burst-keyframe'
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* additionally requires that the burst begin with a keyframe, and
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* 'burst-with-keyframe' attempts to burst beginning with a keyframe, but will
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* prefer a minimum burst size even if it requires not starting with a keyframe.
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*
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* Multisocketsink can be instructed to keep at least a minimum amount of data
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* expressed in time or byte units in its internal queues with the
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* #GstMultiHandleSink:time-min and #GstMultiHandleSink:bytes-min properties respectively.
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* These properties are useful if the application adds clients with the
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* #GstMultiHandleSink::add-full signal to make sure that a burst connect can
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* actually be honored.
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*
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* When streaming data, clients are allowed to read at a different rate than
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* the rate at which multihandlesink receives data. If the client is reading too
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* fast, no data will be send to the client until multihandlesink receives more
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* data. If the client, however, reads too slowly, data for that client will be
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* queued up in multihandlesink. Two properties control the amount of data
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* (buffers) that is queued in multihandlesink: #GstMultiHandleSink:buffers-max and
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* #GstMultiHandleSink:buffers-soft-max. A client that falls behind by
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* #GstMultiHandleSink:buffers-max is removed from multihandlesink forcibly.
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*
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* A client with a lag of at least #GstMultiHandleSink:buffers-soft-max enters the recovery
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* procedure which is controlled with the #GstMultiHandleSink:recover-policy property.
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* A recover policy of NONE will do nothing, RESYNC_LATEST will send the most recently
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* received buffer as the next buffer for the client, RESYNC_SOFT_LIMIT
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* positions the client to the soft limit in the buffer queue and
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* RESYNC_KEYFRAME positions the client at the most recent keyframe in the
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* buffer queue.
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*
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* multihandlesink will by default synchronize on the clock before serving the
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* buffers to the clients. This behaviour can be disabled by setting the sync
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* property to FALSE. Multisocketsink will by default not do QoS and will never
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* drop late buffers.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst-i18n-plugin.h>
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#include "gstmultihandlesink.h"
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifndef G_OS_WIN32
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#include <netinet/in.h>
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#endif
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#include <string.h>
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#define NOT_IMPLEMENTED 0
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (multihandlesink_debug);
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#define GST_CAT_DEFAULT (multihandlesink_debug)
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/* MultiHandleSink signals and args */
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enum
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{
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GST_MULTI_SINK_LAST_SIGNAL,
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/* methods */
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SIGNAL_ADD,
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SIGNAL_ADD_BURST,
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SIGNAL_CLEAR,
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/* signals */
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SIGNAL_CLIENT_ADDED,
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SIGNAL_CLIENT_REMOVED,
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SIGNAL_CLIENT_SOCKET_REMOVED,
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LAST_SIGNAL
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};
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/* this is really arbitrarily chosen */
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#define DEFAULT_BUFFERS_MAX -1
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#define DEFAULT_BUFFERS_SOFT_MAX -1
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#define DEFAULT_TIME_MIN -1
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#define DEFAULT_BYTES_MIN -1
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#define DEFAULT_BUFFERS_MIN -1
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#define DEFAULT_UNIT_FORMAT GST_FORMAT_BUFFERS
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#define DEFAULT_UNITS_MAX -1
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#define DEFAULT_UNITS_SOFT_MAX -1
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#define DEFAULT_RECOVER_POLICY GST_RECOVER_POLICY_NONE
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#define DEFAULT_TIMEOUT 0
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#define DEFAULT_SYNC_METHOD GST_SYNC_METHOD_LATEST
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#define DEFAULT_BURST_FORMAT GST_FORMAT_UNDEFINED
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#define DEFAULT_BURST_VALUE 0
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#define DEFAULT_QOS_DSCP -1
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#define DEFAULT_RESEND_STREAMHEADER TRUE
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enum
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{
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PROP_0,
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PROP_BUFFERS_QUEUED,
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PROP_BYTES_QUEUED,
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PROP_TIME_QUEUED,
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PROP_UNIT_FORMAT,
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PROP_UNITS_MAX,
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PROP_UNITS_SOFT_MAX,
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PROP_BUFFERS_MAX,
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PROP_BUFFERS_SOFT_MAX,
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PROP_TIME_MIN,
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PROP_BYTES_MIN,
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PROP_BUFFERS_MIN,
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PROP_RECOVER_POLICY,
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PROP_TIMEOUT,
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PROP_SYNC_METHOD,
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PROP_BYTES_TO_SERVE,
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PROP_BYTES_SERVED,
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PROP_BURST_FORMAT,
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PROP_BURST_VALUE,
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PROP_QOS_DSCP,
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PROP_RESEND_STREAMHEADER,
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PROP_NUM_HANDLES
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};
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GType
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gst_multi_handle_sink_recover_policy_get_type (void)
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{
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static GType recover_policy_type = 0;
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static const GEnumValue recover_policy[] = {
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{GST_RECOVER_POLICY_NONE,
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"Do not try to recover", "none"},
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{GST_RECOVER_POLICY_RESYNC_LATEST,
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"Resync client to latest buffer", "latest"},
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{GST_RECOVER_POLICY_RESYNC_SOFT_LIMIT,
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"Resync client to soft limit", "soft-limit"},
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{GST_RECOVER_POLICY_RESYNC_KEYFRAME,
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"Resync client to most recent keyframe", "keyframe"},
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{0, NULL, NULL},
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};
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if (!recover_policy_type) {
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recover_policy_type =
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g_enum_register_static ("GstMultiHandleSinkRecoverPolicy",
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recover_policy);
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}
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return recover_policy_type;
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}
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GType
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gst_multi_handle_sink_sync_method_get_type (void)
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{
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static GType sync_method_type = 0;
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static const GEnumValue sync_method[] = {
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{GST_SYNC_METHOD_LATEST,
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"Serve starting from the latest buffer", "latest"},
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{GST_SYNC_METHOD_NEXT_KEYFRAME,
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"Serve starting from the next keyframe", "next-keyframe"},
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{GST_SYNC_METHOD_LATEST_KEYFRAME,
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"Serve everything since the latest keyframe (burst)",
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"latest-keyframe"},
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{GST_SYNC_METHOD_BURST, "Serve burst-value data to client", "burst"},
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{GST_SYNC_METHOD_BURST_KEYFRAME,
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"Serve burst-value data starting on a keyframe",
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"burst-keyframe"},
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{GST_SYNC_METHOD_BURST_WITH_KEYFRAME,
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"Serve burst-value data preferably starting on a keyframe",
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"burst-with-keyframe"},
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{0, NULL, NULL},
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};
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if (!sync_method_type) {
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sync_method_type =
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g_enum_register_static ("GstMultiHandleSinkSyncMethod", sync_method);
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}
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return sync_method_type;
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}
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GType
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gst_multi_handle_sink_client_status_get_type (void)
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{
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static GType client_status_type = 0;
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static const GEnumValue client_status[] = {
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{GST_CLIENT_STATUS_OK, "ok", "ok"},
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{GST_CLIENT_STATUS_CLOSED, "Closed", "closed"},
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{GST_CLIENT_STATUS_REMOVED, "Removed", "removed"},
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{GST_CLIENT_STATUS_SLOW, "Too slow", "slow"},
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{GST_CLIENT_STATUS_ERROR, "Error", "error"},
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{GST_CLIENT_STATUS_DUPLICATE, "Duplicate", "duplicate"},
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{GST_CLIENT_STATUS_FLUSHING, "Flushing", "flushing"},
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{0, NULL, NULL},
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};
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if (!client_status_type) {
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client_status_type =
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g_enum_register_static ("GstMultiHandleSinkClientStatus",
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client_status);
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}
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return client_status_type;
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}
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static void gst_multi_handle_sink_finalize (GObject * object);
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static void gst_multi_handle_sink_clear (GstMultiHandleSink * mhsink);
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static GstFlowReturn gst_multi_handle_sink_render (GstBaseSink * bsink,
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GstBuffer * buf);
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static void gst_multi_handle_sink_queue_buffer (GstMultiHandleSink * mhsink,
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GstBuffer * buffer);
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static gboolean gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink *
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mhsink, GstMultiHandleClient * mhclient, GstBuffer * buffer);
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static GstStateChangeReturn gst_multi_handle_sink_change_state (GstElement *
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element, GstStateChange transition);
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static void gst_multi_handle_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_multi_handle_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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#define gst_multi_handle_sink_parent_class parent_class
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G_DEFINE_TYPE (GstMultiHandleSink, gst_multi_handle_sink, GST_TYPE_BASE_SINK);
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static guint gst_multi_handle_sink_signals[LAST_SIGNAL] = { 0 };
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static gint
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find_syncframe (GstMultiHandleSink * sink, gint idx, gint direction);
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#define find_next_syncframe(s,i) find_syncframe(s,i,1)
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#define find_prev_syncframe(s,i) find_syncframe(s,i,-1)
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static gboolean is_sync_frame (GstMultiHandleSink * sink, GstBuffer * buffer);
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static gboolean gst_multi_handle_sink_stop (GstBaseSink * bsink);
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static gboolean gst_multi_handle_sink_start (GstBaseSink * bsink);
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static gint get_buffers_max (GstMultiHandleSink * sink, gint64 max);
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static gint
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gst_multi_handle_sink_recover_client (GstMultiHandleSink * sink,
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GstMultiHandleClient * client);
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static void gst_multi_handle_sink_setup_dscp (GstMultiHandleSink * mhsink);
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static gboolean
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find_limits (GstMultiHandleSink * sink,
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gint * min_idx, gint bytes_min, gint buffers_min, gint64 time_min,
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gint * max_idx, gint bytes_max, gint buffers_max, gint64 time_max);
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static void
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gst_multi_handle_sink_class_init (GstMultiHandleSinkClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSinkClass *gstbasesink_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesink_class = (GstBaseSinkClass *) klass;
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gobject_class->set_property = gst_multi_handle_sink_set_property;
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gobject_class->get_property = gst_multi_handle_sink_get_property;
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gobject_class->finalize = gst_multi_handle_sink_finalize;
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g_object_class_install_property (gobject_class, PROP_BUFFERS_MAX,
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g_param_spec_int ("buffers-max", "Buffers max",
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"max number of buffers to queue for a client (-1 = no limit)", -1,
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G_MAXINT, DEFAULT_BUFFERS_MAX,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFERS_SOFT_MAX,
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g_param_spec_int ("buffers-soft-max", "Buffers soft max",
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"Recover client when going over this limit (-1 = no limit)", -1,
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G_MAXINT, DEFAULT_BUFFERS_SOFT_MAX,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BYTES_MIN,
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g_param_spec_int ("bytes-min", "Bytes min",
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"min number of bytes to queue (-1 = as little as possible)", -1,
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G_MAXINT, DEFAULT_BYTES_MIN,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_TIME_MIN,
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g_param_spec_int64 ("time-min", "Time min",
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"min amount of time to queue (in nanoseconds) "
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"(-1 = as little as possible)", -1, G_MAXINT64, DEFAULT_TIME_MIN,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFERS_MIN,
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g_param_spec_int ("buffers-min", "Buffers min",
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"min number of buffers to queue (-1 = as few as possible)", -1,
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G_MAXINT, DEFAULT_BUFFERS_MIN,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_UNIT_FORMAT,
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g_param_spec_enum ("unit-format", "Units format",
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"The unit to measure the max/soft-max/queued properties",
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GST_TYPE_FORMAT, DEFAULT_UNIT_FORMAT,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_UNITS_MAX,
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g_param_spec_int64 ("units-max", "Units max",
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"max number of units to queue (-1 = no limit)", -1, G_MAXINT64,
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DEFAULT_UNITS_MAX, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_UNITS_SOFT_MAX,
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g_param_spec_int64 ("units-soft-max", "Units soft max",
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"Recover client when going over this limit (-1 = no limit)", -1,
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G_MAXINT64, DEFAULT_UNITS_SOFT_MAX,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BUFFERS_QUEUED,
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g_param_spec_uint ("buffers-queued", "Buffers queued",
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"Number of buffers currently queued", 0, G_MAXUINT, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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#if NOT_IMPLEMENTED
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g_object_class_install_property (gobject_class, PROP_BYTES_QUEUED,
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g_param_spec_uint ("bytes-queued", "Bytes queued",
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"Number of bytes currently queued", 0, G_MAXUINT, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_TIME_QUEUED,
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g_param_spec_uint64 ("time-queued", "Time queued",
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"Amount of time currently queued (in nanoseconds)", 0, G_MAXUINT64, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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#endif
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g_object_class_install_property (gobject_class, PROP_RECOVER_POLICY,
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g_param_spec_enum ("recover-policy", "Recover Policy",
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"How to recover when client reaches the soft max",
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GST_TYPE_RECOVER_POLICY, DEFAULT_RECOVER_POLICY,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_TIMEOUT,
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g_param_spec_uint64 ("timeout", "Timeout",
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"Maximum inactivity timeout in nanoseconds for a client (0 = no limit)",
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0, G_MAXUINT64, DEFAULT_TIMEOUT,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_SYNC_METHOD,
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g_param_spec_enum ("sync-method", "Sync Method",
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"How to sync new clients to the stream", GST_TYPE_SYNC_METHOD,
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DEFAULT_SYNC_METHOD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BYTES_TO_SERVE,
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g_param_spec_uint64 ("bytes-to-serve", "Bytes to serve",
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"Number of bytes received to serve to clients", 0, G_MAXUINT64, 0,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_BYTES_SERVED,
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|
g_param_spec_uint64 ("bytes-served", "Bytes served",
|
|
"Total number of bytes send to all clients", 0, G_MAXUINT64, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class, PROP_BURST_FORMAT,
|
|
g_param_spec_enum ("burst-format", "Burst format",
|
|
"The format of the burst units (when sync-method is burst[[-with]-keyframe])",
|
|
GST_TYPE_FORMAT, DEFAULT_BURST_FORMAT,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_class, PROP_BURST_VALUE,
|
|
g_param_spec_uint64 ("burst-value", "Burst value",
|
|
"The amount of burst expressed in burst-format", 0, G_MAXUINT64,
|
|
DEFAULT_BURST_VALUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class, PROP_QOS_DSCP,
|
|
g_param_spec_int ("qos-dscp", "QoS diff srv code point",
|
|
"Quality of Service, differentiated services code point (-1 default)",
|
|
-1, 63, DEFAULT_QOS_DSCP,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstMultiHandleSink::resend-streamheader
|
|
*
|
|
* Resend the streamheaders to existing clients when they change.
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_RESEND_STREAMHEADER,
|
|
g_param_spec_boolean ("resend-streamheader", "Resend streamheader",
|
|
"Resend the streamheader if it changes in the caps",
|
|
DEFAULT_RESEND_STREAMHEADER,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class, PROP_NUM_HANDLES,
|
|
g_param_spec_uint ("num-handles", "Number of handles",
|
|
"The current number of client handles",
|
|
0, G_MAXUINT, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstMultiHandleSink::clear:
|
|
* @gstmultihandlesink: the multihandlesink element to emit this signal on
|
|
*
|
|
* Remove all sockets from multihandlesink. Since multihandlesink did not
|
|
* open sockets itself, it does not explicitly close the sockets. The application
|
|
* should do so by connecting to the client-socket-removed callback.
|
|
*/
|
|
gst_multi_handle_sink_signals[SIGNAL_CLEAR] =
|
|
g_signal_new ("clear", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
|
|
G_STRUCT_OFFSET (GstMultiHandleSinkClass, clear), NULL, NULL,
|
|
g_cclosure_marshal_generic, G_TYPE_NONE, 0);
|
|
|
|
gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
|
|
|
|
gst_element_class_set_static_metadata (gstelement_class,
|
|
"Multi socket sink", "Sink/Network",
|
|
"Send data to multiple sockets",
|
|
"Thomas Vander Stichele <thomas at apestaart dot org>, "
|
|
"Wim Taymans <wim@fluendo.com>, "
|
|
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
|
|
|
|
gstelement_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_multi_handle_sink_change_state);
|
|
|
|
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_render);
|
|
klass->client_queue_buffer =
|
|
GST_DEBUG_FUNCPTR (gst_multi_handle_sink_client_queue_buffer);
|
|
|
|
#if 0
|
|
klass->add = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_add);
|
|
klass->add_full = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_add_full);
|
|
klass->remove = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_remove);
|
|
klass->remove_flush = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_remove_flush);
|
|
#endif
|
|
|
|
klass->clear = GST_DEBUG_FUNCPTR (gst_multi_handle_sink_clear);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (multihandlesink_debug, "multihandlesink", 0,
|
|
"Multi socket sink");
|
|
}
|
|
|
|
static void
|
|
gst_multi_handle_sink_init (GstMultiHandleSink * this)
|
|
{
|
|
GST_OBJECT_FLAG_UNSET (this, GST_MULTI_HANDLE_SINK_OPEN);
|
|
|
|
CLIENTS_LOCK_INIT (this);
|
|
this->clients = NULL;
|
|
|
|
this->bufqueue = g_array_new (FALSE, TRUE, sizeof (GstBuffer *));
|
|
this->unit_format = DEFAULT_UNIT_FORMAT;
|
|
this->units_max = DEFAULT_UNITS_MAX;
|
|
this->units_soft_max = DEFAULT_UNITS_SOFT_MAX;
|
|
this->time_min = DEFAULT_TIME_MIN;
|
|
this->bytes_min = DEFAULT_BYTES_MIN;
|
|
this->buffers_min = DEFAULT_BUFFERS_MIN;
|
|
this->recover_policy = DEFAULT_RECOVER_POLICY;
|
|
|
|
this->timeout = DEFAULT_TIMEOUT;
|
|
this->def_sync_method = DEFAULT_SYNC_METHOD;
|
|
|
|
this->def_burst_format = DEFAULT_BURST_FORMAT;
|
|
this->def_burst_value = DEFAULT_BURST_VALUE;
|
|
|
|
this->qos_dscp = DEFAULT_QOS_DSCP;
|
|
|
|
this->resend_streamheader = DEFAULT_RESEND_STREAMHEADER;
|
|
}
|
|
|
|
static void
|
|
gst_multi_handle_sink_finalize (GObject * object)
|
|
{
|
|
GstMultiHandleSink *this;
|
|
|
|
this = GST_MULTI_HANDLE_SINK (object);
|
|
|
|
CLIENTS_LOCK_CLEAR (this);
|
|
g_array_free (this->bufqueue, TRUE);
|
|
g_hash_table_destroy (this->handle_hash);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
gint
|
|
gst_multi_handle_sink_setup_dscp_client (GstMultiHandleSink * sink,
|
|
GstMultiHandleClient * client)
|
|
{
|
|
#if !defined(IP_TOS) || !defined(HAVE_SYS_SOCKET_H)
|
|
return 0;
|
|
#else
|
|
gint tos;
|
|
gint ret;
|
|
int fd;
|
|
union gst_sockaddr
|
|
{
|
|
struct sockaddr sa;
|
|
struct sockaddr_in6 sa_in6;
|
|
struct sockaddr_storage sa_stor;
|
|
} sa;
|
|
socklen_t slen = sizeof (sa);
|
|
gint af;
|
|
GstMultiHandleSinkClass *mhsinkclass = GST_MULTI_HANDLE_SINK_GET_CLASS (sink);
|
|
|
|
/* don't touch */
|
|
if (sink->qos_dscp < 0)
|
|
return 0;
|
|
|
|
fd = mhsinkclass->client_get_fd (client);
|
|
|
|
if ((ret = getsockname (fd, &sa.sa, &slen)) < 0) {
|
|
GST_DEBUG_OBJECT (sink, "could not get sockname: %s", g_strerror (errno));
|
|
return ret;
|
|
}
|
|
|
|
af = sa.sa.sa_family;
|
|
|
|
/* if this is an IPv4-mapped address then do IPv4 QoS */
|
|
if (af == AF_INET6) {
|
|
|
|
GST_DEBUG_OBJECT (sink, "check IP6 socket");
|
|
if (IN6_IS_ADDR_V4MAPPED (&(sa.sa_in6.sin6_addr))) {
|
|
GST_DEBUG_OBJECT (sink, "mapped to IPV4");
|
|
af = AF_INET;
|
|
}
|
|
}
|
|
|
|
/* extract and shift 6 bits of the DSCP */
|
|
tos = (sink->qos_dscp & 0x3f) << 2;
|
|
|
|
switch (af) {
|
|
case AF_INET:
|
|
ret = setsockopt (fd, IPPROTO_IP, IP_TOS, &tos, sizeof (tos));
|
|
break;
|
|
case AF_INET6:
|
|
#ifdef IPV6_TCLASS
|
|
ret = setsockopt (fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof (tos));
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = 0;
|
|
GST_ERROR_OBJECT (sink, "unsupported AF");
|
|
break;
|
|
}
|
|
if (ret)
|
|
GST_DEBUG_OBJECT (sink, "could not set DSCP: %s", g_strerror (errno));
|
|
|
|
return ret;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
gst_multi_handle_sink_client_init (GstMultiHandleClient * client,
|
|
GstSyncMethod sync_method)
|
|
{
|
|
GTimeVal now;
|
|
|
|
client->status = GST_CLIENT_STATUS_OK;
|
|
client->bufpos = -1;
|
|
client->flushcount = -1;
|
|
client->bufoffset = 0;
|
|
client->sending = NULL;
|
|
client->bytes_sent = 0;
|
|
client->dropped_buffers = 0;
|
|
client->avg_queue_size = 0;
|
|
client->first_buffer_ts = GST_CLOCK_TIME_NONE;
|
|
client->last_buffer_ts = GST_CLOCK_TIME_NONE;
|
|
client->new_connection = TRUE;
|
|
client->sync_method = sync_method;
|
|
client->currently_removing = FALSE;
|
|
|
|
/* update start time */
|
|
g_get_current_time (&now);
|
|
client->connect_time = GST_TIMEVAL_TO_TIME (now);
|
|
client->disconnect_time = 0;
|
|
/* set last activity time to connect time */
|
|
client->last_activity_time = client->connect_time;
|
|
}
|
|
|
|
static void
|
|
gst_multi_handle_sink_setup_dscp (GstMultiHandleSink * mhsink)
|
|
{
|
|
GList *clients;
|
|
|
|
CLIENTS_LOCK (mhsink);
|
|
for (clients = mhsink->clients; clients; clients = clients->next) {
|
|
GstMultiHandleClient *client;
|
|
|
|
client = clients->data;
|
|
|
|
gst_multi_handle_sink_setup_dscp_client (mhsink, client);
|
|
}
|
|
CLIENTS_UNLOCK (mhsink);
|
|
}
|
|
|
|
void
|
|
gst_multi_handle_sink_add_full (GstMultiHandleSink * sink,
|
|
GstMultiSinkHandle handle, GstSyncMethod sync_method, GstFormat min_format,
|
|
guint64 min_value, GstFormat max_format, guint64 max_value)
|
|
{
|
|
GstMultiHandleClient *mhclient;
|
|
GList *clink;
|
|
GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
|
|
gchar debug[30];
|
|
GstMultiHandleSinkClass *mhsinkclass =
|
|
GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
|
|
if (!sink->running) {
|
|
g_warning ("Element %s must be set to READY, PAUSED or PLAYING state "
|
|
"before clients can be added", GST_OBJECT_NAME (sink));
|
|
return;
|
|
}
|
|
|
|
mhsinkclass->handle_debug (handle, debug);
|
|
GST_DEBUG_OBJECT (sink, "%s adding client, sync_method %d, "
|
|
"min_format %d, min_value %" G_GUINT64_FORMAT
|
|
", max_format %d, max_value %" G_GUINT64_FORMAT, debug,
|
|
sync_method, min_format, min_value, max_format, max_value);
|
|
|
|
/* do limits check if we can */
|
|
if (min_format == max_format) {
|
|
if (max_value != -1 && min_value != -1 && max_value < min_value)
|
|
goto wrong_limits;
|
|
}
|
|
|
|
CLIENTS_LOCK (sink);
|
|
|
|
/* check the hash to find a duplicate handle */
|
|
clink = g_hash_table_lookup (mhsink->handle_hash,
|
|
mhsinkclass->handle_hash_key (handle));
|
|
if (clink != NULL)
|
|
goto duplicate;
|
|
|
|
/* We do not take ownership of @handle in this function, but we can't take a
|
|
* reference directly as we don't know the concrete type of the handle.
|
|
* GstMultiHandleSink relies on the derived class to take a reference for us
|
|
* in new_client: */
|
|
mhclient = mhsinkclass->new_client (mhsink, handle, sync_method);
|
|
|
|
/* we can add the handle now */
|
|
clink = mhsink->clients = g_list_prepend (mhsink->clients, mhclient);
|
|
g_hash_table_insert (mhsink->handle_hash,
|
|
mhsinkclass->handle_hash_key (mhclient->handle), clink);
|
|
mhsink->clients_cookie++;
|
|
|
|
|
|
mhclient->burst_min_format = min_format;
|
|
mhclient->burst_min_value = min_value;
|
|
mhclient->burst_max_format = max_format;
|
|
mhclient->burst_max_value = max_value;
|
|
|
|
if (mhsinkclass->hash_changed)
|
|
mhsinkclass->hash_changed (mhsink);
|
|
|
|
CLIENTS_UNLOCK (sink);
|
|
|
|
mhsinkclass->emit_client_added (mhsink, handle);
|
|
|
|
return;
|
|
|
|
/* errors */
|
|
wrong_limits:
|
|
{
|
|
GST_WARNING_OBJECT (sink,
|
|
"%s wrong values min =%" G_GUINT64_FORMAT ", max=%"
|
|
G_GUINT64_FORMAT ", unit %d specified when adding client",
|
|
debug, min_value, max_value, min_format);
|
|
return;
|
|
}
|
|
duplicate:
|
|
{
|
|
CLIENTS_UNLOCK (sink);
|
|
GST_WARNING_OBJECT (sink, "%s duplicate client found, refusing", debug);
|
|
mhsinkclass->emit_client_removed (mhsink, handle,
|
|
GST_CLIENT_STATUS_DUPLICATE);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* "add" signal implementation */
|
|
void
|
|
gst_multi_handle_sink_add (GstMultiHandleSink * sink, GstMultiSinkHandle handle)
|
|
{
|
|
gst_multi_handle_sink_add_full (sink, handle, sink->def_sync_method,
|
|
sink->def_burst_format, sink->def_burst_value, sink->def_burst_format,
|
|
-1);
|
|
}
|
|
|
|
/* "remove" signal implementation */
|
|
void
|
|
gst_multi_handle_sink_remove (GstMultiHandleSink * sink,
|
|
GstMultiSinkHandle handle)
|
|
{
|
|
GList *clink;
|
|
GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
|
|
GstMultiHandleSinkClass *mhsinkclass =
|
|
GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
gchar debug[30];
|
|
|
|
mhsinkclass->handle_debug (handle, debug);
|
|
|
|
GST_DEBUG_OBJECT (sink, "%s removing client", debug);
|
|
|
|
CLIENTS_LOCK (sink);
|
|
clink = g_hash_table_lookup (mhsink->handle_hash,
|
|
mhsinkclass->handle_hash_key (handle));
|
|
if (clink != NULL) {
|
|
GstMultiHandleClient *mhclient = (GstMultiHandleClient *) clink->data;
|
|
|
|
if (mhclient->status != GST_CLIENT_STATUS_OK) {
|
|
GST_INFO_OBJECT (sink,
|
|
"%s Client already disconnecting with status %d",
|
|
debug, mhclient->status);
|
|
goto done;
|
|
}
|
|
|
|
mhclient->status = GST_CLIENT_STATUS_REMOVED;
|
|
gst_multi_handle_sink_remove_client_link (GST_MULTI_HANDLE_SINK (sink),
|
|
clink);
|
|
if (mhsinkclass->hash_changed)
|
|
mhsinkclass->hash_changed (mhsink);
|
|
} else {
|
|
GST_WARNING_OBJECT (sink, "%s no client with this handle found!", debug);
|
|
}
|
|
|
|
done:
|
|
CLIENTS_UNLOCK (sink);
|
|
}
|
|
|
|
/* "remove-flush" signal implementation */
|
|
void
|
|
gst_multi_handle_sink_remove_flush (GstMultiHandleSink * sink,
|
|
GstMultiSinkHandle handle)
|
|
{
|
|
GList *clink;
|
|
GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
|
|
GstMultiHandleSinkClass *mhsinkclass =
|
|
GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
gchar debug[30];
|
|
|
|
mhsinkclass->handle_debug (handle, debug);
|
|
|
|
GST_DEBUG_OBJECT (sink, "%s flushing client", debug);
|
|
|
|
CLIENTS_LOCK (sink);
|
|
clink = g_hash_table_lookup (mhsink->handle_hash,
|
|
mhsinkclass->handle_hash_key (handle));
|
|
if (clink != NULL) {
|
|
GstMultiHandleClient *mhclient = (GstMultiHandleClient *) clink->data;
|
|
|
|
if (mhclient->status != GST_CLIENT_STATUS_OK) {
|
|
GST_INFO_OBJECT (sink,
|
|
"%s Client already disconnecting with status %d",
|
|
mhclient->debug, mhclient->status);
|
|
goto done;
|
|
}
|
|
|
|
/* take the position of the client as the number of buffers left to flush.
|
|
* If the client was at position -1, we flush 0 buffers, 0 == flush 1
|
|
* buffer, etc... */
|
|
mhclient->flushcount = mhclient->bufpos + 1;
|
|
/* mark client as flushing. We can not remove the client right away because
|
|
* it might have some buffers to flush in the ->sending queue. */
|
|
mhclient->status = GST_CLIENT_STATUS_FLUSHING;
|
|
} else {
|
|
GST_WARNING_OBJECT (sink, "%s no client with this handle found!", debug);
|
|
}
|
|
done:
|
|
CLIENTS_UNLOCK (sink);
|
|
}
|
|
|
|
/* can be called both through the signal (i.e. from any thread) or when
|
|
* stopping, after the writing thread has shut down */
|
|
static void
|
|
gst_multi_handle_sink_clear (GstMultiHandleSink * mhsink)
|
|
{
|
|
GList *clients, *next;
|
|
guint32 cookie;
|
|
GstMultiHandleSinkClass *mhsinkclass =
|
|
GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
|
|
GST_DEBUG_OBJECT (mhsink, "clearing all clients");
|
|
|
|
CLIENTS_LOCK (mhsink);
|
|
restart:
|
|
cookie = mhsink->clients_cookie;
|
|
for (clients = mhsink->clients; clients; clients = next) {
|
|
GstMultiHandleClient *mhclient;
|
|
|
|
if (cookie != mhsink->clients_cookie) {
|
|
GST_DEBUG_OBJECT (mhsink, "cookie changed while removing all clients");
|
|
goto restart;
|
|
}
|
|
|
|
mhclient = (GstMultiHandleClient *) clients->data;
|
|
next = g_list_next (clients);
|
|
|
|
mhclient->status = GST_CLIENT_STATUS_REMOVED;
|
|
/* the next call changes the list, which is why we iterate
|
|
* with a temporary next pointer */
|
|
gst_multi_handle_sink_remove_client_link (mhsink, clients);
|
|
}
|
|
if (mhsinkclass->hash_changed)
|
|
mhsinkclass->hash_changed (mhsink);
|
|
|
|
CLIENTS_UNLOCK (mhsink);
|
|
}
|
|
|
|
|
|
/* "get-stats" signal implementation
|
|
*/
|
|
GstStructure *
|
|
gst_multi_handle_sink_get_stats (GstMultiHandleSink * sink,
|
|
GstMultiSinkHandle handle)
|
|
{
|
|
GstMultiHandleClient *client;
|
|
GstStructure *result = NULL;
|
|
GList *clink;
|
|
GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (sink);
|
|
GstMultiHandleSinkClass *mhsinkclass =
|
|
GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
gchar debug[30];
|
|
|
|
mhsinkclass->handle_debug (handle, debug);
|
|
|
|
CLIENTS_LOCK (sink);
|
|
clink = g_hash_table_lookup (mhsink->handle_hash,
|
|
mhsinkclass->handle_hash_key (handle));
|
|
if (clink == NULL)
|
|
goto noclient;
|
|
|
|
client = clink->data;
|
|
if (client != NULL) {
|
|
GstMultiHandleClient *mhclient = (GstMultiHandleClient *) client;
|
|
guint64 interval;
|
|
|
|
result = gst_structure_new_empty ("multihandlesink-stats");
|
|
|
|
if (mhclient->disconnect_time == 0) {
|
|
GTimeVal nowtv;
|
|
|
|
g_get_current_time (&nowtv);
|
|
|
|
interval = GST_TIMEVAL_TO_TIME (nowtv) - mhclient->connect_time;
|
|
} else {
|
|
interval = mhclient->disconnect_time - mhclient->connect_time;
|
|
}
|
|
|
|
gst_structure_set (result,
|
|
"bytes-sent", G_TYPE_UINT64, mhclient->bytes_sent,
|
|
"connect-time", G_TYPE_UINT64, mhclient->connect_time,
|
|
"disconnect-time", G_TYPE_UINT64, mhclient->disconnect_time,
|
|
"connect-duration", G_TYPE_UINT64, interval,
|
|
"last-activity-time", G_TYPE_UINT64, mhclient->last_activity_time,
|
|
"buffers-dropped", G_TYPE_UINT64, mhclient->dropped_buffers,
|
|
"first-buffer-ts", G_TYPE_UINT64, mhclient->first_buffer_ts,
|
|
"last-buffer-ts", G_TYPE_UINT64, mhclient->last_buffer_ts, NULL);
|
|
}
|
|
|
|
noclient:
|
|
CLIENTS_UNLOCK (sink);
|
|
|
|
/* python doesn't like a NULL pointer yet */
|
|
if (result == NULL) {
|
|
GST_WARNING_OBJECT (sink, "%s no client with this found!", debug);
|
|
result = gst_structure_new_empty ("multihandlesink-stats");
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/* should be called with the clientslock held.
|
|
* Note that we don't close the fd as we didn't open it in the first
|
|
* place. An application should connect to the client-fd-removed signal and
|
|
* close the fd itself.
|
|
*/
|
|
void
|
|
gst_multi_handle_sink_remove_client_link (GstMultiHandleSink * sink,
|
|
GList * link)
|
|
{
|
|
GTimeVal now;
|
|
GstMultiHandleClient *mhclient = (GstMultiHandleClient *) link->data;
|
|
GstMultiHandleSinkClass *mhsinkclass = GST_MULTI_HANDLE_SINK_GET_CLASS (sink);
|
|
|
|
if (mhclient->currently_removing) {
|
|
GST_WARNING_OBJECT (sink, "%s client is already being removed",
|
|
mhclient->debug);
|
|
return;
|
|
} else {
|
|
mhclient->currently_removing = TRUE;
|
|
}
|
|
|
|
/* FIXME: if we keep track of ip we can log it here and signal */
|
|
switch (mhclient->status) {
|
|
case GST_CLIENT_STATUS_OK:
|
|
GST_WARNING_OBJECT (sink, "%s removing client %p for no reason",
|
|
mhclient->debug, mhclient);
|
|
break;
|
|
case GST_CLIENT_STATUS_CLOSED:
|
|
GST_DEBUG_OBJECT (sink, "%s removing client %p because of close",
|
|
mhclient->debug, mhclient);
|
|
break;
|
|
case GST_CLIENT_STATUS_REMOVED:
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s removing client %p because the app removed it", mhclient->debug,
|
|
mhclient);
|
|
break;
|
|
case GST_CLIENT_STATUS_SLOW:
|
|
GST_INFO_OBJECT (sink,
|
|
"%s removing client %p because it was too slow", mhclient->debug,
|
|
mhclient);
|
|
break;
|
|
case GST_CLIENT_STATUS_ERROR:
|
|
GST_WARNING_OBJECT (sink,
|
|
"%s removing client %p because of error", mhclient->debug, mhclient);
|
|
break;
|
|
case GST_CLIENT_STATUS_FLUSHING:
|
|
default:
|
|
GST_WARNING_OBJECT (sink,
|
|
"%s removing client %p with invalid reason %d", mhclient->debug,
|
|
mhclient, mhclient->status);
|
|
break;
|
|
}
|
|
|
|
mhsinkclass->hash_removing (sink, mhclient);
|
|
|
|
g_get_current_time (&now);
|
|
mhclient->disconnect_time = GST_TIMEVAL_TO_TIME (now);
|
|
|
|
/* free client buffers */
|
|
g_slist_foreach (mhclient->sending, (GFunc) gst_mini_object_unref, NULL);
|
|
g_slist_free (mhclient->sending);
|
|
mhclient->sending = NULL;
|
|
|
|
if (mhclient->caps)
|
|
gst_caps_unref (mhclient->caps);
|
|
mhclient->caps = NULL;
|
|
|
|
/* unlock the mutex before signaling because the signal handler
|
|
* might query some properties */
|
|
CLIENTS_UNLOCK (sink);
|
|
|
|
mhsinkclass->emit_client_removed (sink, mhclient->handle, mhclient->status);
|
|
|
|
/* lock again before we remove the client completely */
|
|
CLIENTS_LOCK (sink);
|
|
|
|
/* handle cannot be reused in the above signal callback so we can safely
|
|
* remove it from the hashtable here */
|
|
if (!g_hash_table_remove (sink->handle_hash,
|
|
mhsinkclass->handle_hash_key (mhclient->handle))) {
|
|
GST_WARNING_OBJECT (sink,
|
|
"%s error removing client %p from hash", mhclient->debug, mhclient);
|
|
}
|
|
/* after releasing the lock above, the link could be invalid, more
|
|
* precisely, the next and prev pointers could point to invalid list
|
|
* links. One optimisation could be to add a cookie to the linked list
|
|
* and take a shortcut when it did not change between unlocking and locking
|
|
* our mutex. For now we just walk the list again. */
|
|
sink->clients = g_list_remove (sink->clients, mhclient);
|
|
sink->clients_cookie++;
|
|
|
|
if (mhsinkclass->removed)
|
|
mhsinkclass->removed (sink, mhclient->handle);
|
|
|
|
CLIENTS_UNLOCK (sink);
|
|
|
|
/* sub-class must implement this to emit the client-$handle-removed signal */
|
|
g_assert (mhsinkclass->client_free != NULL);
|
|
|
|
/* and the handle is really gone now */
|
|
mhsinkclass->client_free (sink, mhclient);
|
|
|
|
g_free (mhclient);
|
|
|
|
CLIENTS_LOCK (sink);
|
|
}
|
|
|
|
static gboolean
|
|
gst_multi_handle_sink_client_queue_buffer (GstMultiHandleSink * mhsink,
|
|
GstMultiHandleClient * mhclient, GstBuffer * buffer)
|
|
{
|
|
GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (mhsink);
|
|
GstCaps *caps;
|
|
|
|
/* TRUE: send them if the new caps have them */
|
|
gboolean send_streamheader = FALSE;
|
|
GstStructure *s;
|
|
|
|
/* before we queue the buffer, we check if we need to queue streamheader
|
|
* buffers (because it's a new client, or because they changed) */
|
|
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (sink));
|
|
|
|
if (!mhclient->caps) {
|
|
if (caps) {
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s no previous caps for this client, send streamheader",
|
|
mhclient->debug);
|
|
send_streamheader = TRUE;
|
|
mhclient->caps = gst_caps_ref (caps);
|
|
}
|
|
} else {
|
|
/* there were previous caps recorded, so compare */
|
|
if (!gst_caps_is_equal (caps, mhclient->caps)) {
|
|
const GValue *sh1, *sh2;
|
|
|
|
/* caps are not equal, but could still have the same streamheader */
|
|
s = gst_caps_get_structure (caps, 0);
|
|
if (!gst_structure_has_field (s, "streamheader")) {
|
|
/* no new streamheader, so nothing new to send */
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s new caps do not have streamheader, not sending",
|
|
mhclient->debug);
|
|
} else {
|
|
/* there is a new streamheader */
|
|
s = gst_caps_get_structure (mhclient->caps, 0);
|
|
if (!gst_structure_has_field (s, "streamheader")) {
|
|
/* no previous streamheader, so send the new one */
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s previous caps did not have streamheader, sending",
|
|
mhclient->debug);
|
|
send_streamheader = TRUE;
|
|
} else {
|
|
/* both old and new caps have streamheader set */
|
|
if (!mhsink->resend_streamheader) {
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s asked to not resend the streamheader, not sending",
|
|
mhclient->debug);
|
|
send_streamheader = FALSE;
|
|
} else {
|
|
sh1 = gst_structure_get_value (s, "streamheader");
|
|
s = gst_caps_get_structure (caps, 0);
|
|
sh2 = gst_structure_get_value (s, "streamheader");
|
|
if (gst_value_compare (sh1, sh2) != GST_VALUE_EQUAL) {
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s new streamheader different from old, sending",
|
|
mhclient->debug);
|
|
send_streamheader = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* Replace the old caps */
|
|
gst_caps_replace (&mhclient->caps, caps);
|
|
}
|
|
|
|
if (G_UNLIKELY (send_streamheader)) {
|
|
const GValue *sh;
|
|
GArray *buffers;
|
|
int i;
|
|
|
|
GST_LOG_OBJECT (sink,
|
|
"%s sending streamheader from caps %" GST_PTR_FORMAT,
|
|
mhclient->debug, caps);
|
|
s = gst_caps_get_structure (caps, 0);
|
|
if (!gst_structure_has_field (s, "streamheader")) {
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s no new streamheader, so nothing to send", mhclient->debug);
|
|
} else {
|
|
GST_LOG_OBJECT (sink,
|
|
"%s sending streamheader from caps %" GST_PTR_FORMAT,
|
|
mhclient->debug, caps);
|
|
sh = gst_structure_get_value (s, "streamheader");
|
|
g_assert (G_VALUE_TYPE (sh) == GST_TYPE_ARRAY);
|
|
buffers = g_value_peek_pointer (sh);
|
|
GST_DEBUG_OBJECT (sink, "%d streamheader buffers", buffers->len);
|
|
for (i = 0; i < buffers->len; ++i) {
|
|
GValue *bufval;
|
|
GstBuffer *buffer;
|
|
|
|
bufval = &g_array_index (buffers, GValue, i);
|
|
g_assert (G_VALUE_TYPE (bufval) == GST_TYPE_BUFFER);
|
|
buffer = g_value_peek_pointer (bufval);
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s queueing streamheader buffer of length %" G_GSIZE_FORMAT,
|
|
mhclient->debug, gst_buffer_get_size (buffer));
|
|
gst_buffer_ref (buffer);
|
|
|
|
mhclient->sending = g_slist_append (mhclient->sending, buffer);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (caps)
|
|
gst_caps_unref (caps);
|
|
caps = NULL;
|
|
|
|
GST_LOG_OBJECT (sink, "%s queueing buffer of length %" G_GSIZE_FORMAT,
|
|
mhclient->debug, gst_buffer_get_size (buffer));
|
|
|
|
gst_buffer_ref (buffer);
|
|
mhclient->sending = g_slist_append (mhclient->sending, buffer);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
is_sync_frame (GstMultiHandleSink * sink, GstBuffer * buffer)
|
|
{
|
|
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
/* find the keyframe in the list of buffers starting the
|
|
* search from @idx. @direction as -1 will search backwards,
|
|
* 1 will search forwards.
|
|
* Returns: the index or -1 if there is no keyframe after idx.
|
|
*/
|
|
gint
|
|
find_syncframe (GstMultiHandleSink * sink, gint idx, gint direction)
|
|
{
|
|
gint i, len, result;
|
|
|
|
/* take length of queued buffers */
|
|
len = sink->bufqueue->len;
|
|
|
|
/* assume we don't find a keyframe */
|
|
result = -1;
|
|
|
|
/* then loop over all buffers to find the first keyframe */
|
|
for (i = idx; i >= 0 && i < len; i += direction) {
|
|
GstBuffer *buf;
|
|
|
|
buf = g_array_index (sink->bufqueue, GstBuffer *, i);
|
|
if (is_sync_frame (sink, buf)) {
|
|
GST_LOG_OBJECT (sink, "found keyframe at %d from %d, direction %d",
|
|
i, idx, direction);
|
|
result = i;
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/* Get the number of buffers from the buffer queue needed to satisfy
|
|
* the maximum max in the configured units.
|
|
* If units are not BUFFERS, and there are insufficient buffers in the
|
|
* queue to satify the limit, return len(queue) + 1 */
|
|
gint
|
|
get_buffers_max (GstMultiHandleSink * sink, gint64 max)
|
|
{
|
|
switch (sink->unit_format) {
|
|
case GST_FORMAT_BUFFERS:
|
|
return max;
|
|
case GST_FORMAT_TIME:
|
|
{
|
|
GstBuffer *buf;
|
|
int i;
|
|
int len;
|
|
gint64 diff;
|
|
GstClockTime first = GST_CLOCK_TIME_NONE;
|
|
|
|
len = sink->bufqueue->len;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
buf = g_array_index (sink->bufqueue, GstBuffer *, i);
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
|
|
if (first == -1)
|
|
first = GST_BUFFER_TIMESTAMP (buf);
|
|
|
|
diff = first - GST_BUFFER_TIMESTAMP (buf);
|
|
|
|
if (diff > max)
|
|
return i + 1;
|
|
}
|
|
}
|
|
return len + 1;
|
|
}
|
|
case GST_FORMAT_BYTES:
|
|
{
|
|
GstBuffer *buf;
|
|
int i;
|
|
int len;
|
|
gint acc = 0;
|
|
|
|
len = sink->bufqueue->len;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
buf = g_array_index (sink->bufqueue, GstBuffer *, i);
|
|
acc += gst_buffer_get_size (buf);
|
|
|
|
if (acc > max)
|
|
return i + 1;
|
|
}
|
|
return len + 1;
|
|
}
|
|
default:
|
|
return max;
|
|
}
|
|
}
|
|
|
|
/* find the positions in the buffer queue where *_min and *_max
|
|
* is satisfied
|
|
*/
|
|
/* count the amount of data in the buffers and return the index
|
|
* that satifies the given limits.
|
|
*
|
|
* Returns: index @idx in the buffer queue so that the given limits are
|
|
* satisfied. TRUE if all the limits could be satisfied, FALSE if not
|
|
* enough data was in the queue.
|
|
*
|
|
* FIXME, this code might now work if any of the units is in buffers...
|
|
*/
|
|
gboolean
|
|
find_limits (GstMultiHandleSink * sink,
|
|
gint * min_idx, gint bytes_min, gint buffers_min, gint64 time_min,
|
|
gint * max_idx, gint bytes_max, gint buffers_max, gint64 time_max)
|
|
{
|
|
GstClockTime first, time;
|
|
gint i, len, bytes;
|
|
gboolean result, max_hit;
|
|
|
|
/* take length of queue */
|
|
len = sink->bufqueue->len;
|
|
|
|
/* this must hold */
|
|
g_assert (len > 0);
|
|
|
|
GST_LOG_OBJECT (sink,
|
|
"bytes_min %d, buffers_min %d, time_min %" GST_TIME_FORMAT
|
|
", bytes_max %d, buffers_max %d, time_max %" GST_TIME_FORMAT, bytes_min,
|
|
buffers_min, GST_TIME_ARGS (time_min), bytes_max, buffers_max,
|
|
GST_TIME_ARGS (time_max));
|
|
|
|
/* do the trivial buffer limit test */
|
|
if (buffers_min != -1 && len < buffers_min) {
|
|
*min_idx = len - 1;
|
|
*max_idx = len - 1;
|
|
return FALSE;
|
|
}
|
|
|
|
result = FALSE;
|
|
/* else count bytes and time */
|
|
first = -1;
|
|
bytes = 0;
|
|
/* unset limits */
|
|
*min_idx = -1;
|
|
*max_idx = -1;
|
|
max_hit = FALSE;
|
|
|
|
i = 0;
|
|
/* loop through the buffers, when a limit is ok, mark it
|
|
* as -1, we have at least one buffer in the queue. */
|
|
do {
|
|
GstBuffer *buf;
|
|
|
|
/* if we checked all min limits, update result */
|
|
if (bytes_min == -1 && time_min == -1 && *min_idx == -1) {
|
|
/* don't go below 0 */
|
|
*min_idx = MAX (i - 1, 0);
|
|
}
|
|
/* if we reached one max limit break out */
|
|
if (max_hit) {
|
|
/* i > 0 when we get here, we subtract one to get the position
|
|
* of the previous buffer. */
|
|
*max_idx = i - 1;
|
|
/* we have valid complete result if we found a min_idx too */
|
|
result = *min_idx != -1;
|
|
break;
|
|
}
|
|
buf = g_array_index (sink->bufqueue, GstBuffer *, i);
|
|
|
|
bytes += gst_buffer_get_size (buf);
|
|
|
|
/* take timestamp and save for the base first timestamp */
|
|
if ((time = GST_BUFFER_TIMESTAMP (buf)) != -1) {
|
|
GST_LOG_OBJECT (sink, "Ts %" GST_TIME_FORMAT " on buffer",
|
|
GST_TIME_ARGS (time));
|
|
if (first == -1)
|
|
first = time;
|
|
|
|
/* increase max usage if we did not fill enough. Note that
|
|
* buffers are sorted from new to old, so the first timestamp is
|
|
* bigger than the next one. */
|
|
if (time_min != -1 && first - time >= time_min)
|
|
time_min = -1;
|
|
if (time_max != -1 && first - time >= time_max)
|
|
max_hit = TRUE;
|
|
} else {
|
|
GST_LOG_OBJECT (sink, "No timestamp on buffer");
|
|
}
|
|
/* time is OK or unknown, check and increase if not enough bytes */
|
|
if (bytes_min != -1) {
|
|
if (bytes >= bytes_min)
|
|
bytes_min = -1;
|
|
}
|
|
if (bytes_max != -1) {
|
|
if (bytes >= bytes_max) {
|
|
max_hit = TRUE;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
while (i < len);
|
|
|
|
/* if we did not hit the max or min limit, set to buffer size */
|
|
if (*max_idx == -1)
|
|
*max_idx = len - 1;
|
|
/* make sure min does not exceed max */
|
|
if (*min_idx == -1)
|
|
*min_idx = *max_idx;
|
|
|
|
return result;
|
|
}
|
|
|
|
/* parse the unit/value pair and assign it to the result value of the
|
|
* right type, leave the other values untouched
|
|
*
|
|
* Returns: FALSE if the unit is unknown or undefined. TRUE otherwise.
|
|
*/
|
|
static gboolean
|
|
assign_value (GstFormat format, guint64 value, gint * bytes, gint * buffers,
|
|
GstClockTime * time)
|
|
{
|
|
gboolean res = TRUE;
|
|
|
|
/* set only the limit of the given format to the given value */
|
|
switch (format) {
|
|
case GST_FORMAT_BUFFERS:
|
|
*buffers = (gint) value;
|
|
break;
|
|
case GST_FORMAT_TIME:
|
|
*time = value;
|
|
break;
|
|
case GST_FORMAT_BYTES:
|
|
*bytes = (gint) value;
|
|
break;
|
|
case GST_FORMAT_UNDEFINED:
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/* count the index in the buffer queue to satisfy the given unit
|
|
* and value pair starting from buffer at index 0.
|
|
*
|
|
* Returns: TRUE if there was enough data in the queue to satisfy the
|
|
* burst values. @idx contains the index in the buffer that contains enough
|
|
* data to satisfy the limits or the last buffer in the queue when the
|
|
* function returns FALSE.
|
|
*/
|
|
static gboolean
|
|
count_burst_unit (GstMultiHandleSink * sink, gint * min_idx,
|
|
GstFormat min_format, guint64 min_value, gint * max_idx,
|
|
GstFormat max_format, guint64 max_value)
|
|
{
|
|
gint bytes_min = -1, buffers_min = -1;
|
|
gint bytes_max = -1, buffers_max = -1;
|
|
GstClockTime time_min = GST_CLOCK_TIME_NONE, time_max = GST_CLOCK_TIME_NONE;
|
|
|
|
assign_value (min_format, min_value, &bytes_min, &buffers_min, &time_min);
|
|
assign_value (max_format, max_value, &bytes_max, &buffers_max, &time_max);
|
|
|
|
return find_limits (sink, min_idx, bytes_min, buffers_min, time_min,
|
|
max_idx, bytes_max, buffers_max, time_max);
|
|
}
|
|
|
|
/* decide where in the current buffer queue this new client should start
|
|
* receiving buffers from.
|
|
* This function is called whenever a client is connected and has not yet
|
|
* received a buffer.
|
|
* If this returns -1, it means that we haven't found a good point to
|
|
* start streaming from yet, and this function should be called again later
|
|
* when more buffers have arrived.
|
|
*/
|
|
gint
|
|
gst_multi_handle_sink_new_client_position (GstMultiHandleSink * sink,
|
|
GstMultiHandleClient * client)
|
|
{
|
|
gint result;
|
|
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s new client, deciding where to start in queue", client->debug);
|
|
GST_DEBUG_OBJECT (sink, "queue is currently %d buffers long",
|
|
sink->bufqueue->len);
|
|
switch (client->sync_method) {
|
|
case GST_SYNC_METHOD_LATEST:
|
|
/* no syncing, we are happy with whatever the client is going to get */
|
|
result = client->bufpos;
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s SYNC_METHOD_LATEST, position %d", client->debug, result);
|
|
break;
|
|
case GST_SYNC_METHOD_NEXT_KEYFRAME:
|
|
{
|
|
/* if one of the new buffers (between client->bufpos and 0) in the queue
|
|
* is a sync point, we can proceed, otherwise we need to keep waiting */
|
|
GST_LOG_OBJECT (sink,
|
|
"%s new client, bufpos %d, waiting for keyframe",
|
|
client->debug, client->bufpos);
|
|
|
|
result = find_prev_syncframe (sink, client->bufpos);
|
|
if (result != -1) {
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s SYNC_METHOD_NEXT_KEYFRAME: result %d", client->debug, result);
|
|
break;
|
|
}
|
|
|
|
/* client is not on a syncbuffer, need to skip these buffers and
|
|
* wait some more */
|
|
GST_LOG_OBJECT (sink,
|
|
"%s new client, skipping buffer(s), no syncpoint found",
|
|
client->debug);
|
|
client->bufpos = -1;
|
|
break;
|
|
}
|
|
case GST_SYNC_METHOD_LATEST_KEYFRAME:
|
|
{
|
|
GST_DEBUG_OBJECT (sink, "%s SYNC_METHOD_LATEST_KEYFRAME", client->debug);
|
|
|
|
/* for new clients we initially scan the complete buffer queue for
|
|
* a sync point when a buffer is added. If we don't find a keyframe,
|
|
* we need to wait for the next keyframe and so we change the client's
|
|
* sync method to GST_SYNC_METHOD_NEXT_KEYFRAME.
|
|
*/
|
|
result = find_next_syncframe (sink, 0);
|
|
if (result != -1) {
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s SYNC_METHOD_LATEST_KEYFRAME: result %d", client->debug, result);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s SYNC_METHOD_LATEST_KEYFRAME: no keyframe found, "
|
|
"switching to SYNC_METHOD_NEXT_KEYFRAME", client->debug);
|
|
/* throw client to the waiting state */
|
|
client->bufpos = -1;
|
|
/* and make client sync to next keyframe */
|
|
client->sync_method = GST_SYNC_METHOD_NEXT_KEYFRAME;
|
|
break;
|
|
}
|
|
case GST_SYNC_METHOD_BURST:
|
|
{
|
|
gboolean ok;
|
|
gint max;
|
|
|
|
/* move to the position where we satisfy the client's burst
|
|
* parameters. If we could not satisfy the parameters because there
|
|
* is not enough data, we just send what we have (which is in result).
|
|
* We use the max value to limit the search
|
|
*/
|
|
ok = count_burst_unit (sink, &result, client->burst_min_format,
|
|
client->burst_min_value, &max, client->burst_max_format,
|
|
client->burst_max_value);
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s SYNC_METHOD_BURST: burst_unit returned %d, result %d",
|
|
client->debug, ok, result);
|
|
|
|
GST_LOG_OBJECT (sink, "min %d, max %d", result, max);
|
|
|
|
/* we hit the max and it is below the min, use that then */
|
|
if (max != -1 && max <= result) {
|
|
result = MAX (max - 1, 0);
|
|
GST_DEBUG_OBJECT (sink,
|
|
"%s SYNC_METHOD_BURST: result above max, taken down to %d",
|
|
client->debug, result);
|
|
}
|
|
break;
|
|
}
|
|
case GST_SYNC_METHOD_BURST_KEYFRAME:
|
|
{
|
|
gint min_idx, max_idx;
|
|
gint next_syncframe, prev_syncframe;
|
|
|
|
/* BURST_KEYFRAME:
|
|
*
|
|
* _always_ start sending a keyframe to the client. We first search
|
|
* a keyframe between min/max limits. If there is none, we send it the
|
|
* last keyframe before min. If there is none, the behaviour is like
|
|
* NEXT_KEYFRAME.
|
|
*/
|
|
/* gather burst limits */
|
|
count_burst_unit (sink, &min_idx, client->burst_min_format,
|
|
client->burst_min_value, &max_idx, client->burst_max_format,
|
|
client->burst_max_value);
|
|
|
|
GST_LOG_OBJECT (sink, "min %d, max %d", min_idx, max_idx);
|
|
|
|
/* first find a keyframe after min_idx */
|
|
next_syncframe = find_next_syncframe (sink, min_idx);
|
|
if (next_syncframe != -1 && next_syncframe < max_idx) {
|
|
/* we have a valid keyframe and it's below the max */
|
|
GST_LOG_OBJECT (sink, "found keyframe in min/max limits");
|
|
result = next_syncframe;
|
|
break;
|
|
}
|
|
|
|
/* no valid keyframe, try to find one below min */
|
|
prev_syncframe = find_prev_syncframe (sink, min_idx);
|
|
if (prev_syncframe != -1) {
|
|
GST_WARNING_OBJECT (sink,
|
|
"using keyframe below min in BURST_KEYFRAME sync mode");
|
|
result = prev_syncframe;
|
|
break;
|
|
}
|
|
|
|
/* no prev keyframe or not enough data */
|
|
GST_WARNING_OBJECT (sink,
|
|
"no prev keyframe found in BURST_KEYFRAME sync mode, waiting for next");
|
|
|
|
/* throw client to the waiting state */
|
|
client->bufpos = -1;
|
|
/* and make client sync to next keyframe */
|
|
client->sync_method = GST_SYNC_METHOD_NEXT_KEYFRAME;
|
|
result = -1;
|
|
break;
|
|
}
|
|
case GST_SYNC_METHOD_BURST_WITH_KEYFRAME:
|
|
{
|
|
gint min_idx, max_idx;
|
|
gint next_syncframe;
|
|
|
|
/* BURST_WITH_KEYFRAME:
|
|
*
|
|
* try to start sending a keyframe to the client. We first search
|
|
* a keyframe between min/max limits. If there is none, we send it the
|
|
* amount of data up 'till min.
|
|
*/
|
|
/* gather enough data to burst */
|
|
count_burst_unit (sink, &min_idx, client->burst_min_format,
|
|
client->burst_min_value, &max_idx, client->burst_max_format,
|
|
client->burst_max_value);
|
|
|
|
GST_LOG_OBJECT (sink, "min %d, max %d", min_idx, max_idx);
|
|
|
|
/* first find a keyframe after min_idx */
|
|
next_syncframe = find_next_syncframe (sink, min_idx);
|
|
if (next_syncframe != -1 && next_syncframe < max_idx) {
|
|
/* we have a valid keyframe and it's below the max */
|
|
GST_LOG_OBJECT (sink, "found keyframe in min/max limits");
|
|
result = next_syncframe;
|
|
break;
|
|
}
|
|
|
|
/* no keyframe, send data from min_idx */
|
|
GST_WARNING_OBJECT (sink, "using min in BURST_WITH_KEYFRAME sync mode");
|
|
|
|
/* make sure we don't go over the max limit */
|
|
if (max_idx != -1 && max_idx <= min_idx) {
|
|
result = MAX (max_idx - 1, 0);
|
|
} else {
|
|
result = min_idx;
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
g_warning ("unknown sync method %d", client->sync_method);
|
|
result = client->bufpos;
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/* calculate the new position for a client after recovery. This function
|
|
* does not update the client position but merely returns the required
|
|
* position.
|
|
*/
|
|
gint
|
|
gst_multi_handle_sink_recover_client (GstMultiHandleSink * sink,
|
|
GstMultiHandleClient * client)
|
|
{
|
|
gint newbufpos;
|
|
|
|
GST_WARNING_OBJECT (sink,
|
|
"%s client %p is lagging at %d, recover using policy %d",
|
|
client->debug, client, client->bufpos, sink->recover_policy);
|
|
|
|
switch (sink->recover_policy) {
|
|
case GST_RECOVER_POLICY_NONE:
|
|
/* do nothing, client will catch up or get kicked out when it reaches
|
|
* the hard max */
|
|
newbufpos = client->bufpos;
|
|
break;
|
|
case GST_RECOVER_POLICY_RESYNC_LATEST:
|
|
/* move to beginning of queue */
|
|
newbufpos = -1;
|
|
break;
|
|
case GST_RECOVER_POLICY_RESYNC_SOFT_LIMIT:
|
|
/* move to beginning of soft max */
|
|
newbufpos = get_buffers_max (sink, sink->units_soft_max);
|
|
break;
|
|
case GST_RECOVER_POLICY_RESYNC_KEYFRAME:
|
|
/* find keyframe in buffers, we search backwards to find the
|
|
* closest keyframe relative to what this client already received. */
|
|
newbufpos = MIN (sink->bufqueue->len - 1,
|
|
get_buffers_max (sink, sink->units_soft_max) - 1);
|
|
|
|
while (newbufpos >= 0) {
|
|
GstBuffer *buf;
|
|
|
|
buf = g_array_index (sink->bufqueue, GstBuffer *, newbufpos);
|
|
if (is_sync_frame (sink, buf)) {
|
|
/* found a buffer that is not a delta unit */
|
|
break;
|
|
}
|
|
newbufpos--;
|
|
}
|
|
break;
|
|
default:
|
|
/* unknown recovery procedure */
|
|
newbufpos = get_buffers_max (sink, sink->units_soft_max);
|
|
break;
|
|
}
|
|
return newbufpos;
|
|
}
|
|
|
|
/* Queue a buffer on the global queue.
|
|
*
|
|
* This function adds the buffer to the front of a GArray. It removes the
|
|
* tail buffer if the max queue size is exceeded, unreffing the queued buffer.
|
|
* Note that unreffing the buffer is not a problem as clients who
|
|
* started writing out this buffer will still have a reference to it in the
|
|
* mhclient->sending queue.
|
|
*
|
|
* After adding the buffer, we update all client positions in the queue. If
|
|
* a client moves over the soft max, we start the recovery procedure for this
|
|
* slow client. If it goes over the hard max, it is put into the slow list
|
|
* and removed.
|
|
*
|
|
* Special care is taken of clients that were waiting for a new buffer (they
|
|
* had a position of -1) because they can proceed after adding this new buffer.
|
|
* This is done by adding the client back into the write fd_set and signaling
|
|
* the select thread that the fd_set changed.
|
|
*/
|
|
static void
|
|
gst_multi_handle_sink_queue_buffer (GstMultiHandleSink * mhsink,
|
|
GstBuffer * buffer)
|
|
{
|
|
GList *clients, *next;
|
|
gint queuelen;
|
|
gboolean hash_changed = FALSE;
|
|
gint max_buffer_usage;
|
|
gint i;
|
|
GTimeVal nowtv;
|
|
GstClockTime now;
|
|
gint max_buffers, soft_max_buffers;
|
|
guint cookie;
|
|
GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (mhsink);
|
|
GstMultiHandleSinkClass *mhsinkclass =
|
|
GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
|
|
CLIENTS_LOCK (mhsink);
|
|
/* add buffer to queue */
|
|
g_array_prepend_val (mhsink->bufqueue, buffer);
|
|
queuelen = mhsink->bufqueue->len;
|
|
|
|
if (mhsink->units_max > 0)
|
|
max_buffers = get_buffers_max (mhsink, mhsink->units_max);
|
|
else
|
|
max_buffers = -1;
|
|
|
|
if (mhsink->units_soft_max > 0)
|
|
soft_max_buffers = get_buffers_max (mhsink, mhsink->units_soft_max);
|
|
else
|
|
soft_max_buffers = -1;
|
|
GST_LOG_OBJECT (sink, "Using max %d, softmax %d", max_buffers,
|
|
soft_max_buffers);
|
|
|
|
/* then loop over the clients and update the positions */
|
|
cookie = mhsink->clients_cookie;
|
|
for (clients = mhsink->clients; clients; clients = clients->next) {
|
|
GstMultiHandleClient *mhclient = clients->data;
|
|
|
|
mhclient->bufpos++;
|
|
GST_LOG_OBJECT (sink, "%s client %p at position %d",
|
|
mhclient->debug, mhclient, mhclient->bufpos);
|
|
|
|
/* check soft max if needed, recover client */
|
|
if (soft_max_buffers > 0 && mhclient->bufpos >= soft_max_buffers) {
|
|
gint newpos;
|
|
|
|
newpos = gst_multi_handle_sink_recover_client (mhsink, mhclient);
|
|
if (newpos != mhclient->bufpos) {
|
|
mhclient->dropped_buffers += mhclient->bufpos - newpos;
|
|
mhclient->bufpos = newpos;
|
|
mhclient->discont = TRUE;
|
|
GST_INFO_OBJECT (sink, "%s client %p position reset to %d",
|
|
mhclient->debug, mhclient, mhclient->bufpos);
|
|
} else {
|
|
GST_INFO_OBJECT (sink,
|
|
"%s client %p not recovering position", mhclient->debug, mhclient);
|
|
}
|
|
}
|
|
}
|
|
|
|
max_buffer_usage = 0;
|
|
g_get_current_time (&nowtv);
|
|
now = GST_TIMEVAL_TO_TIME (nowtv);
|
|
|
|
/* now check for new or slow clients */
|
|
restart:
|
|
cookie = mhsink->clients_cookie;
|
|
for (clients = mhsink->clients; clients; clients = next) {
|
|
GstMultiHandleClient *mhclient = clients->data;
|
|
|
|
if (cookie != mhsink->clients_cookie) {
|
|
GST_DEBUG_OBJECT (sink, "Clients cookie outdated, restarting");
|
|
goto restart;
|
|
}
|
|
|
|
next = g_list_next (clients);
|
|
|
|
/* check hard max and timeout, remove client */
|
|
if ((max_buffers > 0 && mhclient->bufpos >= max_buffers) ||
|
|
(mhsink->timeout > 0
|
|
&& now - mhclient->last_activity_time > mhsink->timeout)) {
|
|
/* remove client */
|
|
GST_WARNING_OBJECT (sink, "%s client %p is too slow, removing",
|
|
mhclient->debug, mhclient);
|
|
/* remove the client, the handle set will be cleared and the select thread
|
|
* will be signaled */
|
|
mhclient->status = GST_CLIENT_STATUS_SLOW;
|
|
/* set client to invalid position while being removed */
|
|
mhclient->bufpos = -1;
|
|
gst_multi_handle_sink_remove_client_link (mhsink, clients);
|
|
hash_changed = TRUE;
|
|
continue;
|
|
} else if (mhclient->bufpos == 0 || mhclient->new_connection) {
|
|
/* can send data to this client now. need to signal the select thread that
|
|
* the handle_set changed */
|
|
mhsinkclass->hash_adding (mhsink, mhclient);
|
|
hash_changed = TRUE;
|
|
}
|
|
|
|
/* keep track of maximum buffer usage */
|
|
if (mhclient->bufpos > max_buffer_usage) {
|
|
max_buffer_usage = mhclient->bufpos;
|
|
}
|
|
}
|
|
|
|
/* make sure we respect bytes-min, buffers-min and time-min when they are set */
|
|
{
|
|
gint usage, max;
|
|
|
|
GST_LOG_OBJECT (sink,
|
|
"extending queue %d to respect time_min %" GST_TIME_FORMAT
|
|
", bytes_min %d, buffers_min %d", max_buffer_usage,
|
|
GST_TIME_ARGS (mhsink->time_min), mhsink->bytes_min,
|
|
mhsink->buffers_min);
|
|
|
|
/* get index where the limits are ok, we don't really care if all limits
|
|
* are ok, we just queue as much as we need. We also don't compare against
|
|
* the max limits. */
|
|
find_limits (mhsink, &usage, mhsink->bytes_min, mhsink->buffers_min,
|
|
mhsink->time_min, &max, -1, -1, -1);
|
|
|
|
max_buffer_usage = MAX (max_buffer_usage, usage);
|
|
GST_LOG_OBJECT (sink, "extended queue to %d", max_buffer_usage);
|
|
}
|
|
|
|
/* now look for sync points and make sure there is at least one
|
|
* sync point in the queue. We only do this if the LATEST_KEYFRAME or
|
|
* BURST_KEYFRAME mode is selected */
|
|
if (mhsink->def_sync_method == GST_SYNC_METHOD_LATEST_KEYFRAME ||
|
|
mhsink->def_sync_method == GST_SYNC_METHOD_BURST_KEYFRAME) {
|
|
/* no point in searching beyond the queue length */
|
|
gint limit = queuelen;
|
|
GstBuffer *buf;
|
|
|
|
/* no point in searching beyond the soft-max if any. */
|
|
if (soft_max_buffers > 0) {
|
|
limit = MIN (limit, soft_max_buffers);
|
|
}
|
|
GST_LOG_OBJECT (sink,
|
|
"extending queue to include sync point, now at %d, limit is %d",
|
|
max_buffer_usage, limit);
|
|
for (i = 0; i < limit; i++) {
|
|
buf = g_array_index (mhsink->bufqueue, GstBuffer *, i);
|
|
if (is_sync_frame (mhsink, buf)) {
|
|
/* found a sync frame, now extend the buffer usage to
|
|
* include at least this frame. */
|
|
max_buffer_usage = MAX (max_buffer_usage, i);
|
|
break;
|
|
}
|
|
}
|
|
GST_LOG_OBJECT (sink, "max buffer usage is now %d", max_buffer_usage);
|
|
}
|
|
|
|
GST_LOG_OBJECT (sink, "len %d, usage %d", queuelen, max_buffer_usage);
|
|
|
|
/* nobody is referencing units after max_buffer_usage so we can
|
|
* remove them from the queue. We remove them in reverse order as
|
|
* this is the most optimal for GArray. */
|
|
for (i = queuelen - 1; i > max_buffer_usage; i--) {
|
|
GstBuffer *old;
|
|
|
|
/* queue exceeded max size */
|
|
queuelen--;
|
|
old = g_array_index (mhsink->bufqueue, GstBuffer *, i);
|
|
mhsink->bufqueue = g_array_remove_index (mhsink->bufqueue, i);
|
|
|
|
/* unref tail buffer */
|
|
gst_buffer_unref (old);
|
|
}
|
|
/* save for stats */
|
|
mhsink->buffers_queued = max_buffer_usage + 1;
|
|
CLIENTS_UNLOCK (sink);
|
|
|
|
/* and send a signal to thread if handle_set changed */
|
|
if (hash_changed && mhsinkclass->hash_changed) {
|
|
mhsinkclass->hash_changed (mhsink);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
buffer_is_in_caps (GstMultiHandleSink * sink, GstBuffer * buf)
|
|
{
|
|
GstCaps *caps;
|
|
GstStructure *s;
|
|
const GValue *v;
|
|
|
|
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (sink));
|
|
if (!caps)
|
|
return FALSE;
|
|
s = gst_caps_get_structure (caps, 0);
|
|
if (!gst_structure_has_field (s, "streamheader")) {
|
|
gst_caps_unref (caps);
|
|
return FALSE;
|
|
}
|
|
|
|
v = gst_structure_get_value (s, "streamheader");
|
|
if (GST_VALUE_HOLDS_ARRAY (v)) {
|
|
guint n = gst_value_array_get_size (v);
|
|
guint i;
|
|
GstMapInfo map;
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
|
|
for (i = 0; i < n; i++) {
|
|
const GValue *v2 = gst_value_array_get_value (v, i);
|
|
GstBuffer *buf2;
|
|
GstMapInfo map2;
|
|
|
|
if (!GST_VALUE_HOLDS_BUFFER (v2))
|
|
continue;
|
|
|
|
buf2 = gst_value_get_buffer (v2);
|
|
if (buf == buf2) {
|
|
gst_caps_unref (caps);
|
|
return TRUE;
|
|
}
|
|
gst_buffer_map (buf2, &map2, GST_MAP_READ);
|
|
if (map.size == map2.size && memcmp (map.data, map2.data, map.size) == 0) {
|
|
gst_buffer_unmap (buf2, &map2);
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_caps_unref (caps);
|
|
return TRUE;
|
|
}
|
|
gst_buffer_unmap (buf2, &map2);
|
|
}
|
|
gst_buffer_unmap (buf, &map);
|
|
}
|
|
|
|
gst_caps_unref (caps);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_multi_handle_sink_render (GstBaseSink * bsink, GstBuffer * buf)
|
|
{
|
|
gboolean is_header, in_caps;
|
|
#if 0
|
|
GstCaps *bufcaps, *padcaps;
|
|
#endif
|
|
|
|
GstMultiHandleSink *sink = GST_MULTI_HANDLE_SINK (bsink);
|
|
|
|
g_return_val_if_fail (GST_OBJECT_FLAG_IS_SET (sink,
|
|
GST_MULTI_HANDLE_SINK_OPEN), GST_FLOW_FLUSHING);
|
|
|
|
#if 0
|
|
/* since we check every buffer for streamheader caps, we need to make
|
|
* sure every buffer has caps set */
|
|
bufcaps = gst_buffer_get_caps (buf);
|
|
padcaps = GST_PAD_CAPS (GST_BASE_SINK_PAD (bsink));
|
|
|
|
/* make sure we have caps on the pad */
|
|
if (!padcaps && !bufcaps)
|
|
goto no_caps;
|
|
#endif
|
|
|
|
/* get HEADER first, code below might mess with the flags */
|
|
is_header = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_HEADER);
|
|
in_caps = is_header && buffer_is_in_caps (sink, buf);
|
|
|
|
#if 0
|
|
/* stamp the buffer with previous caps if no caps set */
|
|
if (!bufcaps) {
|
|
if (!gst_buffer_is_writable (buf)) {
|
|
/* metadata is not writable, copy will be made and original buffer
|
|
* will be unreffed so we need to ref so that we don't lose the
|
|
* buffer in the render method. */
|
|
gst_buffer_ref (buf);
|
|
/* the new buffer is ours only, we keep it out of the scope of this
|
|
* function */
|
|
buf = gst_buffer_make_writable (buf);
|
|
} else {
|
|
/* else the metadata is writable, we ref because we keep the buffer
|
|
* out of the scope of this method */
|
|
gst_buffer_ref (buf);
|
|
}
|
|
/* buffer metadata is writable now, set the caps */
|
|
gst_buffer_set_caps (buf, padcaps);
|
|
} else {
|
|
gst_caps_unref (bufcaps);
|
|
|
|
/* since we keep this buffer out of the scope of this method */
|
|
gst_buffer_ref (buf);
|
|
}
|
|
#endif
|
|
gst_buffer_ref (buf);
|
|
|
|
GST_LOG_OBJECT (sink, "received buffer %p, in_caps: %s, offset %"
|
|
G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT
|
|
", timestamp %" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
|
|
buf, in_caps ? "yes" : "no", GST_BUFFER_OFFSET (buf),
|
|
GST_BUFFER_OFFSET_END (buf),
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
|
|
|
|
/* if the incoming buffer is a streamheader from the caps, then we assume for now
|
|
* it's a streamheader that needs to be sent to each new client.
|
|
*
|
|
* We don't send the buffer to the client, since streamheaders are sent
|
|
* separately when necessary. */
|
|
if (in_caps) {
|
|
GST_DEBUG_OBJECT (sink, "ignoring HEADER buffer with length %"
|
|
G_GSIZE_FORMAT, gst_buffer_get_size (buf));
|
|
gst_buffer_unref (buf);
|
|
} else {
|
|
/* queue the buffer, this is a regular data buffer. */
|
|
gst_multi_handle_sink_queue_buffer (sink, buf);
|
|
|
|
sink->bytes_to_serve += gst_buffer_get_size (buf);
|
|
}
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERRORS */
|
|
#if 0
|
|
no_caps:
|
|
{
|
|
GST_ELEMENT_ERROR (sink, CORE, NEGOTIATION, (NULL),
|
|
("Received first buffer without caps set"));
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
gst_multi_handle_sink_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstMultiHandleSink *multihandlesink;
|
|
|
|
multihandlesink = GST_MULTI_HANDLE_SINK (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_BUFFERS_MAX:
|
|
multihandlesink->units_max = g_value_get_int (value);
|
|
break;
|
|
case PROP_BUFFERS_SOFT_MAX:
|
|
multihandlesink->units_soft_max = g_value_get_int (value);
|
|
break;
|
|
case PROP_TIME_MIN:
|
|
multihandlesink->time_min = g_value_get_int64 (value);
|
|
break;
|
|
case PROP_BYTES_MIN:
|
|
multihandlesink->bytes_min = g_value_get_int (value);
|
|
break;
|
|
case PROP_BUFFERS_MIN:
|
|
multihandlesink->buffers_min = g_value_get_int (value);
|
|
break;
|
|
case PROP_UNIT_FORMAT:
|
|
multihandlesink->unit_format = g_value_get_enum (value);
|
|
break;
|
|
case PROP_UNITS_MAX:
|
|
multihandlesink->units_max = g_value_get_int64 (value);
|
|
break;
|
|
case PROP_UNITS_SOFT_MAX:
|
|
multihandlesink->units_soft_max = g_value_get_int64 (value);
|
|
break;
|
|
case PROP_RECOVER_POLICY:
|
|
multihandlesink->recover_policy = g_value_get_enum (value);
|
|
break;
|
|
case PROP_TIMEOUT:
|
|
multihandlesink->timeout = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_SYNC_METHOD:
|
|
multihandlesink->def_sync_method = g_value_get_enum (value);
|
|
break;
|
|
case PROP_BURST_FORMAT:
|
|
multihandlesink->def_burst_format = g_value_get_enum (value);
|
|
break;
|
|
case PROP_BURST_VALUE:
|
|
multihandlesink->def_burst_value = g_value_get_uint64 (value);
|
|
break;
|
|
case PROP_QOS_DSCP:
|
|
multihandlesink->qos_dscp = g_value_get_int (value);
|
|
gst_multi_handle_sink_setup_dscp (multihandlesink);
|
|
break;
|
|
|
|
case PROP_RESEND_STREAMHEADER:
|
|
multihandlesink->resend_streamheader = g_value_get_boolean (value);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_multi_handle_sink_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstMultiHandleSink *multihandlesink;
|
|
|
|
multihandlesink = GST_MULTI_HANDLE_SINK (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_BUFFERS_MAX:
|
|
g_value_set_int (value, multihandlesink->units_max);
|
|
break;
|
|
case PROP_BUFFERS_SOFT_MAX:
|
|
g_value_set_int (value, multihandlesink->units_soft_max);
|
|
break;
|
|
case PROP_TIME_MIN:
|
|
g_value_set_int64 (value, multihandlesink->time_min);
|
|
break;
|
|
case PROP_BYTES_MIN:
|
|
g_value_set_int (value, multihandlesink->bytes_min);
|
|
break;
|
|
case PROP_BUFFERS_MIN:
|
|
g_value_set_int (value, multihandlesink->buffers_min);
|
|
break;
|
|
case PROP_BUFFERS_QUEUED:
|
|
g_value_set_uint (value, multihandlesink->buffers_queued);
|
|
break;
|
|
case PROP_BYTES_QUEUED:
|
|
g_value_set_uint (value, multihandlesink->bytes_queued);
|
|
break;
|
|
case PROP_TIME_QUEUED:
|
|
g_value_set_uint64 (value, multihandlesink->time_queued);
|
|
break;
|
|
case PROP_UNIT_FORMAT:
|
|
g_value_set_enum (value, multihandlesink->unit_format);
|
|
break;
|
|
case PROP_UNITS_MAX:
|
|
g_value_set_int64 (value, multihandlesink->units_max);
|
|
break;
|
|
case PROP_UNITS_SOFT_MAX:
|
|
g_value_set_int64 (value, multihandlesink->units_soft_max);
|
|
break;
|
|
case PROP_RECOVER_POLICY:
|
|
g_value_set_enum (value, multihandlesink->recover_policy);
|
|
break;
|
|
case PROP_TIMEOUT:
|
|
g_value_set_uint64 (value, multihandlesink->timeout);
|
|
break;
|
|
case PROP_SYNC_METHOD:
|
|
g_value_set_enum (value, multihandlesink->def_sync_method);
|
|
break;
|
|
case PROP_BYTES_TO_SERVE:
|
|
g_value_set_uint64 (value, multihandlesink->bytes_to_serve);
|
|
break;
|
|
case PROP_BYTES_SERVED:
|
|
g_value_set_uint64 (value, multihandlesink->bytes_served);
|
|
break;
|
|
case PROP_BURST_FORMAT:
|
|
g_value_set_enum (value, multihandlesink->def_burst_format);
|
|
break;
|
|
case PROP_BURST_VALUE:
|
|
g_value_set_uint64 (value, multihandlesink->def_burst_value);
|
|
break;
|
|
case PROP_QOS_DSCP:
|
|
g_value_set_int (value, multihandlesink->qos_dscp);
|
|
break;
|
|
case PROP_RESEND_STREAMHEADER:
|
|
g_value_set_boolean (value, multihandlesink->resend_streamheader);
|
|
break;
|
|
case PROP_NUM_HANDLES:
|
|
g_value_set_uint (value,
|
|
g_hash_table_size (multihandlesink->handle_hash));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* create a socket for sending to remote machine */
|
|
static gboolean
|
|
gst_multi_handle_sink_start (GstBaseSink * bsink)
|
|
{
|
|
GstMultiHandleSinkClass *mhsclass;
|
|
GstMultiHandleSink *mhsink;
|
|
|
|
if (GST_OBJECT_FLAG_IS_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN))
|
|
return TRUE;
|
|
|
|
mhsink = GST_MULTI_HANDLE_SINK (bsink);
|
|
mhsclass = GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
|
|
if (!mhsclass->start_pre (mhsink))
|
|
return FALSE;
|
|
|
|
mhsink->bytes_to_serve = 0;
|
|
mhsink->bytes_served = 0;
|
|
|
|
if (mhsclass->init) {
|
|
mhsclass->init (mhsink);
|
|
}
|
|
|
|
mhsink->running = TRUE;
|
|
|
|
mhsink->thread = g_thread_new ("multihandlesink",
|
|
(GThreadFunc) mhsclass->thread, mhsink);
|
|
|
|
GST_OBJECT_FLAG_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_multi_handle_sink_stop (GstBaseSink * bsink)
|
|
{
|
|
GstMultiHandleSinkClass *mhclass;
|
|
GstBuffer *buf;
|
|
gint i;
|
|
GstMultiHandleSink *mhsink = GST_MULTI_HANDLE_SINK (bsink);
|
|
|
|
mhclass = GST_MULTI_HANDLE_SINK_GET_CLASS (mhsink);
|
|
|
|
if (!GST_OBJECT_FLAG_IS_SET (bsink, GST_MULTI_HANDLE_SINK_OPEN))
|
|
return TRUE;
|
|
|
|
mhsink->running = FALSE;
|
|
|
|
mhclass->stop_pre (mhsink);
|
|
|
|
if (mhsink->thread) {
|
|
GST_DEBUG_OBJECT (mhsink, "joining thread");
|
|
g_thread_join (mhsink->thread);
|
|
GST_DEBUG_OBJECT (mhsink, "joined thread");
|
|
mhsink->thread = NULL;
|
|
}
|
|
|
|
/* free the clients */
|
|
mhclass->clear (GST_MULTI_HANDLE_SINK (mhsink));
|
|
|
|
if (mhclass->close)
|
|
mhclass->close (mhsink);
|
|
|
|
mhclass->stop_post (mhsink);
|
|
|
|
/* remove all queued buffers */
|
|
if (mhsink->bufqueue) {
|
|
GST_DEBUG_OBJECT (mhsink, "Emptying bufqueue with %d buffers",
|
|
mhsink->bufqueue->len);
|
|
for (i = mhsink->bufqueue->len - 1; i >= 0; --i) {
|
|
buf = g_array_index (mhsink->bufqueue, GstBuffer *, i);
|
|
GST_LOG_OBJECT (mhsink, "Removing buffer %p (%d) with refcount %d", buf,
|
|
i, GST_MINI_OBJECT_REFCOUNT (buf));
|
|
gst_buffer_unref (buf);
|
|
mhsink->bufqueue = g_array_remove_index (mhsink->bufqueue, i);
|
|
}
|
|
/* freeing the array is done in _finalize */
|
|
}
|
|
GST_OBJECT_FLAG_UNSET (mhsink, GST_MULTI_HANDLE_SINK_OPEN);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_multi_handle_sink_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstMultiHandleSink *sink;
|
|
GstStateChangeReturn ret;
|
|
|
|
sink = GST_MULTI_HANDLE_SINK (element);
|
|
|
|
/* we disallow changing the state from the streaming thread */
|
|
if (g_thread_self () == sink->thread) {
|
|
g_warning
|
|
("\nTrying to change %s's state from its streaming thread would deadlock.\n"
|
|
"You cannot change the state of an element from its streaming\n"
|
|
"thread. Use g_idle_add() or post a GstMessage on the bus to\n"
|
|
"schedule the state change from the main thread.\n",
|
|
GST_ELEMENT_NAME (sink));
|
|
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
if (!gst_multi_handle_sink_start (GST_BASE_SINK (sink)))
|
|
goto start_failed;
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
gst_multi_handle_sink_stop (GST_BASE_SINK (sink));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
start_failed:
|
|
{
|
|
/* error message was posted */
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
}
|