mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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293 lines
9.2 KiB
C
293 lines
9.2 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Vivia Nikolaidou <vivia@toolsonair.com>
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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-errorignore
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* @title: errorignore
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*
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* Passes through all packets, until it encounters GST_FLOW_ERROR or
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* GST_FLOW_NOT_NEGOTIATED (configurable). At that point it will unref the
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* buffers and return GST_FLOW_OK (configurable) - until the next
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* READY_TO_PAUSED, RECONFIGURE or FLUSH_STOP.
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*
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* ## Example launch line
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* |[
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* gst-launch-1.0 videotestsrc ! errorignore ! autovideosink
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* ]|
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*
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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 "gstdebugutilsbadelements.h"
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#include "gsterrorignore.h"
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#define GST_CAT_DEFAULT gst_error_ignore_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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enum
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{
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PROP_0,
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PROP_IGNORE_ERROR,
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PROP_IGNORE_NOTLINKED,
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PROP_IGNORE_NOTNEGOTIATED,
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PROP_IGNORE_EOS,
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PROP_CONVERT_TO
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};
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static void gst_error_ignore_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_error_ignore_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstStaticPadTemplate sink_template = 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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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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#define parent_class gst_error_ignore_parent_class
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G_DEFINE_TYPE (GstErrorIgnore, gst_error_ignore, GST_TYPE_ELEMENT);
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GST_ELEMENT_REGISTER_DEFINE (errorignore, "errorignore",
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GST_RANK_NONE, gst_error_ignore_get_type ());
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static GstFlowReturn gst_error_ignore_sink_chain (GstPad * pad,
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GstObject * parent, GstBuffer * inbuf);
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static gboolean gst_error_ignore_sink_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static GstStateChangeReturn gst_error_ignore_change_state (GstElement * element,
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GstStateChange transition);
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static void
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gst_error_ignore_class_init (GstErrorIgnoreClass * klass)
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{
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GstElementClass *gstelement_class;
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GST_DEBUG_CATEGORY_INIT (gst_error_ignore_debug, "errorignore", 0,
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"Convert some GstFlowReturn types into others");
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gstelement_class = (GstElementClass *) klass;
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gst_element_class_set_static_metadata (gstelement_class,
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"Convert some GstFlowReturn types into others", "Generic",
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"Pass through all packets but ignore some GstFlowReturn types",
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"Vivia Nikolaidou <vivia@toolsonair.com>");
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gst_element_class_add_static_pad_template (gstelement_class, &src_template);
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gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
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gstelement_class->change_state = gst_error_ignore_change_state;
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/* define virtual function pointers */
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object_class->set_property = gst_error_ignore_set_property;
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object_class->get_property = gst_error_ignore_get_property;
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/* define properties */
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g_object_class_install_property (object_class, PROP_IGNORE_ERROR,
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g_param_spec_boolean ("ignore-error", "Ignore GST_FLOW_ERROR",
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"Whether to ignore GST_FLOW_ERROR",
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TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (object_class, PROP_IGNORE_NOTLINKED,
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g_param_spec_boolean ("ignore-notlinked", "Ignore GST_FLOW_NOT_LINKED",
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"Whether to ignore GST_FLOW_NOT_LINKED",
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FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (object_class, PROP_IGNORE_NOTNEGOTIATED,
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g_param_spec_boolean ("ignore-notnegotiated",
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"Ignore GST_FLOW_NOT_NEGOTIATED",
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"Whether to ignore GST_FLOW_NOT_NEGOTIATED",
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TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstErrorIgnore:ignore-eos:
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*
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* Since: 1.20
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*/
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g_object_class_install_property (object_class, PROP_IGNORE_EOS,
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g_param_spec_boolean ("ignore-eos",
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"Ignore GST_FLOW_EOS", "Whether to ignore GST_FLOW_EOS",
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FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (object_class, PROP_CONVERT_TO,
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g_param_spec_enum ("convert-to", "GstFlowReturn to convert to",
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"Which GstFlowReturn value we should convert to when ignoring",
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GST_TYPE_FLOW_RETURN,
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GST_FLOW_NOT_LINKED, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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}
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static void
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gst_error_ignore_init (GstErrorIgnore * self)
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{
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self->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
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gst_pad_set_chain_function (self->sinkpad,
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GST_DEBUG_FUNCPTR (gst_error_ignore_sink_chain));
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gst_pad_set_event_function (self->sinkpad,
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GST_DEBUG_FUNCPTR (gst_error_ignore_sink_event));
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GST_PAD_SET_PROXY_ALLOCATION (self->sinkpad);
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GST_PAD_SET_PROXY_CAPS (self->sinkpad);
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GST_PAD_SET_PROXY_SCHEDULING (self->sinkpad);
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gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
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self->srcpad = gst_pad_new_from_static_template (&src_template, "src");
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gst_pad_use_fixed_caps (self->srcpad);
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GST_PAD_SET_PROXY_ALLOCATION (self->srcpad);
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GST_PAD_SET_PROXY_CAPS (self->srcpad);
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GST_PAD_SET_PROXY_SCHEDULING (self->srcpad);
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gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
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self->keep_pushing = TRUE;
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self->ignore_error = TRUE;
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self->ignore_notlinked = FALSE;
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self->ignore_notnegotiated = TRUE;
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self->ignore_eos = FALSE;
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self->convert_to = GST_FLOW_NOT_LINKED;
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}
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static void
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gst_error_ignore_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstErrorIgnore *self = GST_ERROR_IGNORE (object);
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switch (prop_id) {
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case PROP_IGNORE_ERROR:
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self->ignore_error = g_value_get_boolean (value);
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break;
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case PROP_IGNORE_NOTLINKED:
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self->ignore_notlinked = g_value_get_boolean (value);
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break;
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case PROP_IGNORE_NOTNEGOTIATED:
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self->ignore_notnegotiated = g_value_get_boolean (value);
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break;
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case PROP_IGNORE_EOS:
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self->ignore_eos = g_value_get_boolean (value);
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break;
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case PROP_CONVERT_TO:
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self->convert_to = g_value_get_enum (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_error_ignore_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstErrorIgnore *self = GST_ERROR_IGNORE (object);
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switch (prop_id) {
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case PROP_IGNORE_ERROR:
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g_value_set_boolean (value, self->ignore_error);
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break;
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case PROP_IGNORE_NOTLINKED:
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g_value_set_boolean (value, self->ignore_notlinked);
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break;
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case PROP_IGNORE_NOTNEGOTIATED:
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g_value_set_boolean (value, self->ignore_notnegotiated);
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break;
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case PROP_IGNORE_EOS:
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g_value_set_boolean (value, self->ignore_eos);
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break;
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case PROP_CONVERT_TO:
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g_value_set_enum (value, self->convert_to);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gst_error_ignore_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstErrorIgnore *self = GST_ERROR_IGNORE (parent);
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gboolean ret;
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GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_CAPS:
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case GST_EVENT_FLUSH_STOP:
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self->keep_pushing = TRUE;
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/* fall through */
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default:
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ret = gst_pad_event_default (pad, parent, event);
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break;
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}
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return ret;
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}
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static GstFlowReturn
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gst_error_ignore_sink_chain (GstPad * pad, GstObject * parent,
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GstBuffer * inbuf)
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{
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GstErrorIgnore *self = GST_ERROR_IGNORE (parent);
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GstFlowReturn ret = GST_FLOW_OK;
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if (gst_pad_check_reconfigure (pad))
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self->keep_pushing = TRUE;
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if (self->keep_pushing) {
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ret = gst_pad_push (self->srcpad, inbuf);
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self->keep_pushing = (ret == GST_FLOW_OK);
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} else {
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gst_buffer_unref (inbuf);
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}
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if ((ret == GST_FLOW_ERROR && self->ignore_error) ||
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(ret == GST_FLOW_NOT_LINKED && self->ignore_notlinked) ||
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(ret == GST_FLOW_EOS && self->ignore_eos) ||
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(ret == GST_FLOW_NOT_NEGOTIATED && self->ignore_notnegotiated))
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return self->convert_to;
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else
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return ret;
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}
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static GstStateChangeReturn
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gst_error_ignore_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GstErrorIgnore *self = GST_ERROR_IGNORE (element);
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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if (ret == GST_STATE_CHANGE_FAILURE)
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return ret;
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switch (transition) {
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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self->keep_pushing = TRUE;
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break;
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default:
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break;
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}
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return ret;
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}
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