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Conflicts: common ext/pulse/pulsesink.c ext/soup/gstsouphttpclientsink.c gst/audioparsers/gstaacparse.c gst/audioparsers/gstac3parse.c gst/rtp/gstrtph264depay.c gst/rtpmanager/gstrtpjitterbuffer.c gst/rtpmanager/rtpjitterbuffer.c gst/rtsp/gstrtspsrc.c sys/ximage/gstximagesrc.c
389 lines
11 KiB
C
389 lines
11 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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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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/*
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* This file was (probably) generated from gstnavseek.c,
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* gstnavseek.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
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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 "gstnavseek.h"
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#include <string.h>
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#include <math.h>
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enum
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{
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ARG_0,
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ARG_SEEKOFFSET
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};
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GstStaticPadTemplate navseek_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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GstStaticPadTemplate navseek_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 gboolean gst_navseek_sink_event (GstBaseTransform * trans,
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GstEvent * event);
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static GstFlowReturn gst_navseek_transform_ip (GstBaseTransform * basetrans,
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GstBuffer * buf);
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static gboolean gst_navseek_src_event (GstBaseTransform * trans,
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GstEvent * event);
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static gboolean gst_navseek_stop (GstBaseTransform * trans);
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static gboolean gst_navseek_start (GstBaseTransform * trans);
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static void gst_navseek_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_navseek_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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GType gst_navseek_get_type (void);
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#define gst_navseek_parent_class parent_class
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G_DEFINE_TYPE (GstNavSeek, gst_navseek, GST_TYPE_BASE_TRANSFORM);
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static void
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gst_navseek_class_init (GstNavSeekClass * klass)
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{
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GstBaseTransformClass *gstbasetrans_class;
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GstElementClass *element_class;
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GObjectClass *gobject_class;
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gobject_class = G_OBJECT_CLASS (klass);
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element_class = GST_ELEMENT_CLASS (klass);
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gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (klass);
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gobject_class->set_property = gst_navseek_set_property;
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gobject_class->get_property = gst_navseek_get_property;
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g_object_class_install_property (gobject_class,
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ARG_SEEKOFFSET, g_param_spec_double ("seek-offset", "Seek Offset",
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"Time in seconds to seek by", 0.0, G_MAXDOUBLE, 5.0,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&navseek_sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&navseek_src_template));
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gst_element_class_set_details_simple (element_class,
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"Seek based on left-right arrows", "Filter/Video",
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"Seek based on navigation keys left-right",
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"Jan Schmidt <thaytan@mad.scientist.com>");
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gstbasetrans_class->src_event = GST_DEBUG_FUNCPTR (gst_navseek_src_event);
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gstbasetrans_class->sink_event = GST_DEBUG_FUNCPTR (gst_navseek_sink_event);
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gstbasetrans_class->transform_ip =
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GST_DEBUG_FUNCPTR (gst_navseek_transform_ip);
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gstbasetrans_class->start = GST_DEBUG_FUNCPTR (gst_navseek_start);
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gstbasetrans_class->stop = GST_DEBUG_FUNCPTR (gst_navseek_stop);
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}
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static void
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gst_navseek_init (GstNavSeek * navseek)
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{
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gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (navseek), TRUE);
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navseek->seek_offset = 5.0;
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navseek->loop = FALSE;
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navseek->grab_seg_start = FALSE;
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navseek->grab_seg_end = FALSE;
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navseek->segment_start = GST_CLOCK_TIME_NONE;
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navseek->segment_end = GST_CLOCK_TIME_NONE;
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}
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static void
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gst_navseek_seek (GstNavSeek * navseek, gint64 offset)
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{
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gboolean ret;
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GstPad *peer_pad;
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gint64 peer_value;
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/* Query for the current time then attempt to set to time + offset */
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peer_pad = gst_pad_get_peer (GST_BASE_TRANSFORM (navseek)->sinkpad);
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ret = gst_pad_query_position (peer_pad, GST_FORMAT_TIME, &peer_value);
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if (ret) {
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GstEvent *event;
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peer_value += offset;
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if (peer_value < 0)
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peer_value = 0;
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event = gst_event_new_seek (1.0, GST_FORMAT_TIME,
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GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_FLUSH,
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GST_SEEK_TYPE_SET, peer_value, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
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gst_pad_send_event (peer_pad, event);
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}
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gst_object_unref (peer_pad);
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}
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static void
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gst_navseek_change_playback_rate (GstNavSeek * navseek, gdouble rate)
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{
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gboolean ret;
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GstPad *peer_pad;
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gint64 current_position;
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peer_pad = gst_pad_get_peer (GST_BASE_TRANSFORM (navseek)->sinkpad);
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ret = gst_pad_query_position (peer_pad, GST_FORMAT_TIME, ¤t_position);
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if (ret) {
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GstEvent *event;
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gint64 start;
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gint64 stop;
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if (rate > 0.0) {
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start = current_position;
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stop = -1;
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} else {
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/* negative rate: we play from stop to start */
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start = 0;
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stop = current_position;
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}
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event = gst_event_new_seek (rate, GST_FORMAT_TIME,
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GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_SKIP,
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GST_SEEK_TYPE_SET, start, GST_SEEK_TYPE_SET, stop);
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gst_pad_send_event (peer_pad, event);
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}
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}
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static void
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gst_navseek_segseek (GstNavSeek * navseek)
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{
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GstEvent *event;
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GstPad *peer_pad;
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if ((navseek->segment_start == GST_CLOCK_TIME_NONE) ||
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(navseek->segment_end == GST_CLOCK_TIME_NONE) ||
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(!GST_PAD_IS_LINKED (GST_BASE_TRANSFORM (navseek)->sinkpad))) {
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return;
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}
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if (navseek->loop) {
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event =
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gst_event_new_seek (1.0, GST_FORMAT_TIME,
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GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_SEGMENT,
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GST_SEEK_TYPE_SET, navseek->segment_start, GST_SEEK_TYPE_SET,
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navseek->segment_end);
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} else {
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event =
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gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_ACCURATE,
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GST_SEEK_TYPE_SET, navseek->segment_start, GST_SEEK_TYPE_SET,
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navseek->segment_end);
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}
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peer_pad = gst_pad_get_peer (GST_BASE_TRANSFORM (navseek)->sinkpad);
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gst_pad_send_event (peer_pad, event);
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gst_object_unref (peer_pad);
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}
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static void
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gst_navseek_toggle_play_pause (GstNavSeek * navseek)
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{
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GstStateChangeReturn sret;
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GstState current, pending, state;
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sret = gst_element_get_state (GST_ELEMENT (navseek), ¤t, &pending, 0);
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if (sret == GST_STATE_CHANGE_FAILURE)
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return;
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state = (pending != GST_STATE_VOID_PENDING) ? pending : current;
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gst_element_post_message (GST_ELEMENT (navseek),
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gst_message_new_request_state (GST_OBJECT (navseek),
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(state == GST_STATE_PLAYING) ? GST_STATE_PAUSED : GST_STATE_PLAYING));
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}
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static gboolean
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gst_navseek_src_event (GstBaseTransform * trans, GstEvent * event)
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{
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GstNavSeek *navseek;
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gboolean ret = TRUE;
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navseek = GST_NAVSEEK (trans);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_NAVIGATION:
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{
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/* Check for a keyup and convert left/right to a seek event */
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const GstStructure *structure;
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const gchar *event_type;
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structure = gst_event_get_structure (event);
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g_return_val_if_fail (structure != NULL, FALSE);
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event_type = gst_structure_get_string (structure, "event");
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g_return_val_if_fail (event_type != NULL, FALSE);
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if (strcmp (event_type, "key-press") == 0) {
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const gchar *key;
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key = gst_structure_get_string (structure, "key");
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g_return_val_if_fail (key != NULL, FALSE);
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if (strcmp (key, "Left") == 0) {
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/* Seek backward by 5 secs */
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gst_navseek_seek (navseek, -1.0 * navseek->seek_offset * GST_SECOND);
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} else if (strcmp (key, "Right") == 0) {
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/* Seek forward */
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gst_navseek_seek (navseek, navseek->seek_offset * GST_SECOND);
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} else if (strcmp (key, "s") == 0) {
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/* Grab the next frame as the start frame of a segment */
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navseek->grab_seg_start = TRUE;
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} else if (strcmp (key, "e") == 0) {
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/* Grab the next frame as the end frame of a segment */
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navseek->grab_seg_end = TRUE;
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} else if (strcmp (key, "l") == 0) {
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/* Toggle the loop flag. If we have both start and end segment times send a seek */
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navseek->loop = !navseek->loop;
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gst_navseek_segseek (navseek);
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} else if (strcmp (key, "f") == 0) {
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/* fast forward */
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gst_navseek_change_playback_rate (navseek, 2.0);
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} else if (strcmp (key, "r") == 0) {
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/* rewind */
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gst_navseek_change_playback_rate (navseek, -2.0);
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} else if (strcmp (key, "n") == 0) {
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/* normal speed */
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gst_navseek_change_playback_rate (navseek, 1.0);
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} else if (strcmp (key, "space") == 0) {
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gst_navseek_toggle_play_pause (navseek);
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}
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} else {
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break;
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}
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gst_event_unref (event);
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event = NULL;
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break;
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}
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default:
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break;
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}
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if (event)
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ret = GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans, event);
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return ret;
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}
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static void
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gst_navseek_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstNavSeek *navseek = GST_NAVSEEK (object);
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switch (prop_id) {
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case ARG_SEEKOFFSET:
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GST_OBJECT_LOCK (navseek);
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navseek->seek_offset = g_value_get_double (value);
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GST_OBJECT_UNLOCK (navseek);
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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_navseek_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstNavSeek *navseek = GST_NAVSEEK (object);
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switch (prop_id) {
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case ARG_SEEKOFFSET:
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GST_OBJECT_LOCK (navseek);
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g_value_set_double (value, navseek->seek_offset);
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GST_OBJECT_UNLOCK (navseek);
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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_navseek_sink_event (GstBaseTransform * trans, GstEvent * event)
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{
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GstNavSeek *navseek = GST_NAVSEEK (trans);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_EOS:
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GST_OBJECT_LOCK (navseek);
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if (navseek->loop)
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gst_navseek_segseek (navseek);
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GST_OBJECT_UNLOCK (navseek);
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break;
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default:
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break;
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}
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return GST_BASE_TRANSFORM_CLASS (parent_class)->sink_event (trans, event);
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}
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static GstFlowReturn
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gst_navseek_transform_ip (GstBaseTransform * basetrans, GstBuffer * buf)
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{
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GstNavSeek *navseek = GST_NAVSEEK (basetrans);
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GST_OBJECT_LOCK (navseek);
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if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
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if (navseek->grab_seg_start) {
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navseek->segment_start = GST_BUFFER_TIMESTAMP (buf);
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navseek->segment_end = GST_CLOCK_TIME_NONE;
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navseek->grab_seg_start = FALSE;
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}
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if (navseek->grab_seg_end) {
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navseek->segment_end = GST_BUFFER_TIMESTAMP (buf);
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navseek->grab_seg_end = FALSE;
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gst_navseek_segseek (navseek);
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}
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}
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GST_OBJECT_UNLOCK (navseek);
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return GST_FLOW_OK;
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}
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static gboolean
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gst_navseek_start (GstBaseTransform * trans)
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{
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/* anything we should be doing here? */
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return TRUE;
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}
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static gboolean
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gst_navseek_stop (GstBaseTransform * trans)
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{
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/* anything we should be doing here? */
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return TRUE;
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}
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