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Original commit message from CVS: Next big merge. Added GstBus for mainloop integration. Added GstMessage for sending notifications on the bus. Added GstTask as an abstraction for pipeline entry points. Removed GstThread. Removed Schedulers. Simplified GstQueue for multithreaded core. Made _link threadsafe, removed old capsnego. Added STREAM_LOCK and PREROLL_LOCK in GstPad. Added pad blocking functions. Reworked scheduling functions in GstPad to prepare for scheduling updates soon. Moved events out of data stream. Simplified GstEvent types. Added return values to push/pull. Removed clocking from GstElement. Added prototypes for state change function for next merge. Removed iterate from bins and state change management. Fixed some elements, disabled others for now. Fixed -inspect and -launch. Added check for GstBus.
399 lines
11 KiB
C
399 lines
11 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000,2001,2002,2003,2004,2005 Wim Taymans <wim@fluendo.com>
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*
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*
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* gsttee.c: Tee element, one in N out
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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 "gsttee.h"
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#include <string.h>
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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 (gst_tee_debug);
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#define GST_CAT_DEFAULT gst_tee_debug
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GstElementDetails gst_tee_details = GST_ELEMENT_DETAILS ("Tee pipe fitting",
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"Generic",
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"1-to-N pipe fitting",
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"Erik Walthinsen <omega@cse.ogi.edu>, "
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"Wim \"Tim\" Taymans <wim@fluendo.com>");
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enum
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{
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PROP_0,
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PROP_NUM_SRC_PADS,
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PROP_HAS_SINK_LOOP,
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PROP_HAS_CHAIN,
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PROP_SILENT,
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PROP_LAST_MESSAGE
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/* FILL ME */
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};
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GstStaticPadTemplate tee_src_template = GST_STATIC_PAD_TEMPLATE ("src%d",
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GST_PAD_SRC,
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GST_PAD_REQUEST,
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GST_STATIC_CAPS_ANY);
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
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GST_BOILERPLATE_FULL (GstTee, gst_tee, GstElement, GST_TYPE_ELEMENT, _do_init);
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static GstPad *gst_tee_request_new_pad (GstElement * element,
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GstPadTemplate * temp, const gchar * unused);
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static void gst_tee_finalize (GObject * object);
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static void gst_tee_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_tee_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstFlowReturn gst_tee_chain (GstPad * pad, GstBuffer * buffer);
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static void gst_tee_loop (GstPad * pad);
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static gboolean gst_tee_sink_activate (GstPad * pad, GstActivateMode mode);
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static void
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gst_tee_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sinktemplate));
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gst_element_class_set_details (gstelement_class, &gst_tee_details);
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&tee_src_template));
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}
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static void
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gst_tee_finalize (GObject * object)
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{
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GstTee *tee;
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tee = GST_TEE (object);
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g_free (tee->last_message);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_tee_class_init (GstTeeClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_tee_finalize);
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_tee_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_tee_get_property);
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_NUM_SRC_PADS,
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g_param_spec_int ("num-src-pads", "num-src-pads", "num-src-pads",
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0, G_MAXINT, 0, G_PARAM_READABLE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_HAS_SINK_LOOP,
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g_param_spec_boolean ("has-sink-loop", "has-sink-loop", "has-sink-loop",
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FALSE, G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_HAS_CHAIN,
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g_param_spec_boolean ("has-chain", "has-chain", "has-chain",
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TRUE, G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SILENT,
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g_param_spec_boolean ("silent", "silent", "silent",
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TRUE, G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LAST_MESSAGE,
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g_param_spec_string ("last_message", "last_message", "last_message",
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NULL, G_PARAM_READABLE));
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gstelement_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_tee_request_new_pad);
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}
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static void
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gst_tee_init (GstTee * tee)
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{
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tee->sinkpad =
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gst_pad_new_from_template (gst_static_pad_template_get (&sinktemplate),
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"sink");
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gst_element_add_pad (GST_ELEMENT (tee), tee->sinkpad);
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gst_pad_set_setcaps_function (tee->sinkpad,
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GST_DEBUG_FUNCPTR (gst_pad_proxy_setcaps));
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gst_pad_set_getcaps_function (tee->sinkpad,
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GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
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tee->last_message = NULL;
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}
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static void
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gst_tee_update_pad_functions (GstTee * tee)
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{
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gst_pad_set_activate_function (tee->sinkpad,
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GST_DEBUG_FUNCPTR (gst_tee_sink_activate));
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if (tee->has_chain)
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gst_pad_set_chain_function (tee->sinkpad,
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GST_DEBUG_FUNCPTR (gst_tee_chain));
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else
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gst_pad_set_chain_function (tee->sinkpad, NULL);
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if (tee->has_sink_loop)
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gst_pad_set_loop_function (tee->sinkpad, GST_DEBUG_FUNCPTR (gst_tee_loop));
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else
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gst_pad_set_loop_function (tee->sinkpad, NULL);
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}
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static GstPad *
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gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
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const gchar * unused)
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{
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gchar *name;
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GstPad *srcpad;
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GstTee *tee;
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tee = GST_TEE (element);
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GST_LOCK (tee);
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name = g_strdup_printf ("src%d", tee->pad_counter++);
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GST_UNLOCK (tee);
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srcpad = gst_pad_new_from_template (templ, name);
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g_free (name);
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gst_pad_set_setcaps_function (srcpad,
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GST_DEBUG_FUNCPTR (gst_pad_proxy_setcaps));
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gst_pad_set_getcaps_function (srcpad,
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GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
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gst_element_add_pad (GST_ELEMENT (tee), srcpad);
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return srcpad;
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}
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static void
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gst_tee_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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{
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GstTee *tee = GST_TEE (object);
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GST_LOCK (tee);
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switch (prop_id) {
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case PROP_HAS_SINK_LOOP:
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tee->has_sink_loop = g_value_get_boolean (value);
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gst_tee_update_pad_functions (tee);
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break;
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case PROP_HAS_CHAIN:
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tee->has_chain = g_value_get_boolean (value);
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gst_tee_update_pad_functions (tee);
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break;
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case PROP_SILENT:
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tee->silent = g_value_get_boolean (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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GST_UNLOCK (tee);
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}
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static void
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gst_tee_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstTee *tee = GST_TEE (object);
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GST_LOCK (tee);
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switch (prop_id) {
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case PROP_NUM_SRC_PADS:
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g_value_set_int (value, GST_ELEMENT (tee)->numsrcpads);
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break;
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case PROP_HAS_SINK_LOOP:
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g_value_set_boolean (value, tee->has_sink_loop);
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break;
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case PROP_HAS_CHAIN:
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g_value_set_boolean (value, tee->has_chain);
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break;
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case PROP_SILENT:
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g_value_set_boolean (value, tee->silent);
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break;
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case PROP_LAST_MESSAGE:
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g_value_set_string (value, tee->last_message);
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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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GST_UNLOCK (tee);
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}
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typedef struct
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{
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GstTee *tee;
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GstBuffer *buffer;
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} PushData;
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static gboolean
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gst_tee_do_push (GstPad * pad, GValue * ret, PushData * data)
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{
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GstFlowReturn res;
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if (GST_PAD_DIRECTION (pad) != GST_PAD_SRC || !GST_PAD_IS_USABLE (pad))
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return TRUE;
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if (G_UNLIKELY (!data->tee->silent)) {
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GstTee *tee = data->tee;
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GstBuffer *buf = data->buffer;
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g_free (tee->last_message);
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tee->last_message =
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g_strdup_printf ("chain ******* (%s:%s)t (%d bytes, %"
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G_GUINT64_FORMAT ") %p", GST_DEBUG_PAD_NAME (pad),
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GST_BUFFER_SIZE (buf), GST_BUFFER_TIMESTAMP (buf), buf);
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g_object_notify (G_OBJECT (tee), "last_message");
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}
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res = gst_pad_push (pad, gst_buffer_ref (data->buffer));
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g_value_set_enum (ret, res);
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return (res == GST_FLOW_OK);
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}
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static GstFlowReturn
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gst_tee_handle_buffer (GstTee * tee, GstBuffer * buffer)
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{
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GstIterator *iter;
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PushData data;
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GValue ret = { 0, };
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GstIteratorResult res;
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tee->offset += GST_BUFFER_SIZE (buffer);
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g_value_init (&ret, GST_TYPE_FLOW_RETURN);
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iter = gst_element_iterate_pads (GST_ELEMENT (tee));
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data.tee = tee;
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data.buffer = buffer;
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res = gst_iterator_fold (iter, (GstIteratorFoldFunction) gst_tee_do_push,
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&ret, &data);
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gst_iterator_free (iter);
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gst_buffer_unref (buffer);
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/* no need to unset gvalue */
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return g_value_get_enum (&ret);
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}
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#define WITH_STREAM_LOCK(pad, expr) G_STMT_START {\
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GST_STREAM_LOCK (pad); \
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expr; \
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GST_STREAM_UNLOCK (pad); \
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}G_STMT_END
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static GstFlowReturn
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gst_tee_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstFlowReturn res;
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GstTee *tee;
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tee = GST_TEE (gst_pad_get_parent (pad));
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WITH_STREAM_LOCK (pad, res = gst_tee_handle_buffer (tee, buffer));
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return res;
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}
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#define DEFAULT_SIZE 1024
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static void
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gst_tee_loop (GstPad * pad)
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{
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GstBuffer *buffer;
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GstFlowReturn res;
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GstTee *tee;
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GST_STREAM_LOCK (pad);
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tee = GST_TEE (gst_pad_get_parent (pad));
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res = gst_pad_pull_range (pad, tee->offset, DEFAULT_SIZE, &buffer);
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if (res != GST_FLOW_OK)
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goto pause_task;
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res = gst_tee_handle_buffer (tee, buffer);
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if (res != GST_FLOW_OK)
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goto pause_task;
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GST_STREAM_UNLOCK (pad);
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return;
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pause_task:
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gst_pad_pause_task (pad);
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GST_STREAM_UNLOCK (pad);
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return;
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}
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static gboolean
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gst_tee_sink_activate (GstPad * pad, GstActivateMode mode)
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{
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gboolean result = FALSE;
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GstTee *tee;
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tee = GST_TEE (GST_OBJECT_PARENT (pad));
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switch (mode) {
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case GST_ACTIVATE_PUSH:
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g_return_val_if_fail (tee->has_chain, FALSE);
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result = TRUE;
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break;
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case GST_ACTIVATE_PULL:
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g_return_val_if_fail (tee->has_sink_loop, FALSE);
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if (GST_ELEMENT_SCHEDULER (tee)) {
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GST_STREAM_LOCK (pad);
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GST_RPAD_TASK (pad) =
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gst_scheduler_create_task (GST_ELEMENT_SCHEDULER (tee),
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(GstTaskFunction) gst_tee_loop, pad);
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gst_pad_start_task (pad);
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GST_STREAM_UNLOCK (pad);
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result = TRUE;
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}
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break;
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case GST_ACTIVATE_NONE:
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GST_STREAM_LOCK (pad);
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if (GST_RPAD_TASK (pad)) {
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gst_pad_stop_task (pad);
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gst_object_unref (GST_OBJECT (GST_RPAD_TASK (pad)));
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GST_RPAD_TASK (pad) = NULL;
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}
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GST_STREAM_UNLOCK (pad);
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result = TRUE;
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break;
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}
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tee->sink_mode = mode;
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return result;
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}
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