gstreamer/gst/debug/gstnavseek.c

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* This file was (probably) generated from gstnavseek.c,
* gstnavseek.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnavseek.h"
#include <string.h>
#include <math.h>
enum
{
ARG_0,
ARG_SEEKOFFSET
};
GstStaticPadTemplate navseek_src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GstStaticPadTemplate navseek_sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
Define GstElementDetails as const and also static (when defined as global) Original commit message from CVS: * ext/aalib/gstaasink.c: * ext/annodex/gstcmmldec.c: * ext/annodex/gstcmmlenc.c: * ext/cairo/gsttextoverlay.c: * ext/cairo/gsttimeoverlay.c: * ext/cdio/gstcdiocddasrc.c: * ext/dv/gstdvdec.c: * ext/dv/gstdvdemux.c: * ext/esd/esdmon.c: * ext/esd/esdsink.c: * ext/flac/gstflacenc.c: * ext/flac/gstflactag.c: * ext/gconf/gstgconfaudiosink.c: (gst_gconf_audio_sink_base_init): * ext/gconf/gstgconfaudiosrc.c: (gst_gconf_audio_src_base_init): * ext/gconf/gstgconfvideosink.c: (gst_gconf_video_sink_base_init): * ext/gconf/gstgconfvideosrc.c: (gst_gconf_video_src_base_init): * ext/gdk_pixbuf/pixbufscale.c: * ext/hal/gsthalaudiosink.c: (gst_hal_audio_sink_base_init): * ext/hal/gsthalaudiosrc.c: (gst_hal_audio_src_base_init): * ext/jpeg/gstjpegdec.c: * ext/jpeg/gstjpegenc.c: * ext/jpeg/gstsmokedec.c: * ext/jpeg/gstsmokeenc.c: * ext/libcaca/gstcacasink.c: * ext/libmng/gstmngdec.c: * ext/libmng/gstmngenc.c: * ext/libpng/gstpngdec.c: * ext/libpng/gstpngenc.c: * ext/mikmod/gstmikmod.c: * ext/raw1394/gstdv1394src.c: * ext/shout2/gstshout2.c: (gst_shout2send_init): * ext/shout2/gstshout2.h: * ext/speex/gstspeexdec.c: * ext/speex/gstspeexenc.c: * gst/alpha/gstalpha.c: * gst/alpha/gstalphacolor.c: * gst/apetag/gstapedemux.c: * gst/auparse/gstauparse.c: * gst/autodetect/gstautoaudiosink.c: (gst_auto_audio_sink_base_init): * gst/autodetect/gstautovideosink.c: (gst_auto_video_sink_base_init): * gst/avi/gstavidemux.c: (gst_avi_demux_base_init): * gst/avi/gstavimux.c: (gst_avimux_base_init): * gst/cutter/gstcutter.c: * gst/debug/breakmydata.c: * gst/debug/efence.c: * gst/debug/gstnavigationtest.c: * gst/debug/gstnavseek.c: * gst/debug/negotiation.c: * gst/debug/progressreport.c: * gst/debug/testplugin.c: * gst/effectv/gstaging.c: * gst/effectv/gstdice.c: * gst/effectv/gstedge.c: * gst/effectv/gstquark.c: * gst/effectv/gstrev.c: * gst/effectv/gstshagadelic.c: * gst/effectv/gstvertigo.c: * gst/effectv/gstwarp.c: * gst/flx/gstflxdec.c: * gst/goom/gstgoom.c: * gst/icydemux/gsticydemux.c: * gst/id3demux/gstid3demux.c: * gst/interleave/deinterleave.c: * gst/interleave/interleave.c: * gst/law/alaw-decode.c: (gst_alawdec_base_init): * gst/law/alaw-encode.c: (gst_alawenc_base_init): * gst/law/mulaw-decode.c: (gst_mulawdec_base_init): * gst/law/mulaw-encode.c: (gst_mulawenc_base_init): * gst/level/gstlevel.c: * gst/matroska/matroska-demux.c: (gst_matroska_demux_base_init): * gst/matroska/matroska-mux.c: (gst_matroska_mux_base_init): * gst/median/gstmedian.c: * gst/monoscope/gstmonoscope.c: * gst/multipart/multipartdemux.c: * gst/multipart/multipartmux.c: * gst/oldcore/gstaggregator.c: * gst/oldcore/gstfdsink.c: * gst/oldcore/gstmd5sink.c: * gst/oldcore/gstmultifilesrc.c: * gst/oldcore/gstpipefilter.c: * gst/oldcore/gstshaper.c: * gst/oldcore/gststatistics.c: * gst/rtp/gstasteriskh263.c: * gst/rtp/gstrtpL16depay.c: * gst/rtp/gstrtpL16pay.c: * gst/rtp/gstrtpamrdepay.c: * gst/rtp/gstrtpamrpay.c: * gst/rtp/gstrtpdepay.c: * gst/rtp/gstrtpgsmpay.c: * gst/rtp/gstrtph263pay.c: * gst/rtp/gstrtph263pdepay.c: * gst/rtp/gstrtph263ppay.c: * gst/rtp/gstrtpilbcdepay.c: * gst/rtp/gstrtpmp4gpay.c: * gst/rtp/gstrtpmp4vdepay.c: * gst/rtp/gstrtpmp4vpay.c: * gst/rtp/gstrtpmpadepay.c: * gst/rtp/gstrtpmpapay.c: * gst/rtp/gstrtppcmadepay.c: * gst/rtp/gstrtppcmapay.c: * gst/rtp/gstrtppcmudepay.c: * gst/rtp/gstrtppcmupay.c: * gst/rtp/gstrtpspeexdepay.c: * gst/rtp/gstrtpspeexpay.c: * gst/rtsp/gstrtpdec.c: * gst/rtsp/gstrtspsrc.c: * gst/smpte/gstsmpte.c: * gst/udp/gstdynudpsink.c: * gst/udp/gstmultiudpsink.c: * gst/udp/gstudpsink.c: * gst/udp/gstudpsrc.c: * gst/videobox/gstvideobox.c: * gst/videofilter/gstgamma.c: (gst_gamma_base_init): * gst/videofilter/gstvideobalance.c: * gst/videofilter/gstvideoflip.c: * gst/videofilter/gstvideotemplate.c: (gst_videotemplate_base_init): * gst/videomixer/videomixer.c: * gst/wavparse/gstwavparse.c: (gst_wavparse_base_init), (gst_wavparse_class_init), (gst_wavparse_dispose), (gst_wavparse_reset), (gst_wavparse_init), (gst_wavparse_perform_seek), (gst_wavparse_peek_chunk_info), (gst_wavparse_peek_chunk), (gst_wavparse_stream_headers), (gst_wavparse_parse_stream_init), (gst_wavparse_send_event), (gst_wavparse_add_src_pad), (gst_wavparse_stream_data), (gst_wavparse_chain), (gst_wavparse_srcpad_event), (gst_wavparse_sink_activate), (gst_wavparse_sink_activate_pull), (gst_wavparse_change_state): * gst/wavparse/gstwavparse.h: * sys/oss/gstossmixerelement.c: * sys/oss/gstosssink.c: * sys/oss/gstosssrc.c: * sys/osxaudio/gstosxaudioelement.c: * sys/osxaudio/gstosxaudiosink.c: * sys/osxaudio/gstosxaudiosrc.c: * sys/sunaudio/gstsunaudiomixer.c: * sys/sunaudio/gstsunaudiosink.c: Define GstElementDetails as const and also static (when defined as global)
2006-04-25 21:39:46 +00:00
static const GstElementDetails navseek_details =
GST_ELEMENT_DETAILS ("Seek based on left-right arrows",
"Filter/Video",
"Seek based on navigation keys left-right",
"Jan Schmidt <thaytan@mad.scientist.com>");
static gboolean gst_navseek_event (GstBaseTransform * trans, GstEvent * event);
static GstFlowReturn gst_navseek_transform_ip (GstBaseTransform * basetrans,
GstBuffer * buf);
static gboolean gst_navseek_handle_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_navseek_stop (GstBaseTransform * trans);
static gboolean gst_navseek_start (GstBaseTransform * trans);
static void gst_navseek_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_navseek_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
GST_BOILERPLATE (GstNavSeek, gst_navseek, GstBaseTransform,
GST_TYPE_BASE_TRANSFORM);
static void
gst_navseek_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&navseek_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&navseek_src_template));
gst_element_class_set_details (element_class, &navseek_details);
}
static void
gst_navseek_class_init (GstNavSeekClass * klass)
{
GstBaseTransformClass *gstbasetrans_class;
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_navseek_set_property;
gobject_class->get_property = gst_navseek_get_property;
g_object_class_install_property (gobject_class,
ARG_SEEKOFFSET, g_param_spec_double ("seek-offset", "Seek Offset",
"Time in seconds to seek by", 0.0, G_MAXDOUBLE, 5.0,
G_PARAM_READWRITE));
gstbasetrans_class->event = GST_DEBUG_FUNCPTR (gst_navseek_event);
gstbasetrans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_navseek_transform_ip);
gstbasetrans_class->start = GST_DEBUG_FUNCPTR (gst_navseek_start);
gstbasetrans_class->stop = GST_DEBUG_FUNCPTR (gst_navseek_stop);
}
static void
gst_navseek_init (GstNavSeek * navseek, GstNavSeekClass * g_class)
{
gst_pad_set_event_function (GST_BASE_TRANSFORM (navseek)->srcpad,
GST_DEBUG_FUNCPTR (gst_navseek_handle_src_event));
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (navseek), TRUE);
navseek->seek_offset = 5.0;
navseek->loop = FALSE;
navseek->grab_seg_start = FALSE;
navseek->grab_seg_end = FALSE;
navseek->segment_start = GST_CLOCK_TIME_NONE;
navseek->segment_end = GST_CLOCK_TIME_NONE;
}
static void
gst_navseek_seek (GstNavSeek * navseek, gint64 offset)
{
GstFormat peer_format = GST_FORMAT_TIME;
gboolean ret;
GstPad *peer_pad;
gint64 peer_value;
/* Query for the current time then attempt to set to time + offset */
peer_pad = gst_pad_get_peer (GST_BASE_TRANSFORM (navseek)->sinkpad);
ret = gst_pad_query_position (peer_pad, &peer_format, &peer_value);
if (ret && peer_format == GST_FORMAT_TIME) {
GstEvent *event;
peer_value += offset;
if (peer_value < 0)
peer_value = 0;
event = gst_event_new_seek (1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, peer_value, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
gst_pad_send_event (peer_pad, event);
}
gst_object_unref (peer_pad);
}
static void
gst_navseek_segseek (GstNavSeek * navseek)
{
GstEvent *event;
GstPad *peer_pad;
if ((navseek->segment_start == GST_CLOCK_TIME_NONE) ||
(navseek->segment_end == GST_CLOCK_TIME_NONE) ||
(!GST_PAD_IS_LINKED (GST_BASE_TRANSFORM (navseek)->sinkpad))) {
return;
}
if (navseek->loop) {
event =
gst_event_new_seek (1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_SEGMENT,
GST_SEEK_TYPE_SET, navseek->segment_start, GST_SEEK_TYPE_SET,
navseek->segment_end);
} else {
event =
gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_ACCURATE,
GST_SEEK_TYPE_SET, navseek->segment_start, GST_SEEK_TYPE_SET,
navseek->segment_end);
}
peer_pad = gst_pad_get_peer (GST_BASE_TRANSFORM (navseek)->sinkpad);
gst_pad_send_event (peer_pad, event);
gst_object_unref (peer_pad);
}
static gboolean
gst_navseek_handle_src_event (GstPad * pad, GstEvent * event)
{
GstNavSeek *navseek;
gboolean ret = TRUE;
navseek = GST_NAVSEEK (GST_PAD_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NAVIGATION:
/* Check for a keyup and convert left/right to a seek event */
{
const GstStructure *structure;
const gchar *event_type;
structure = gst_event_get_structure (event);
g_return_val_if_fail (structure != NULL, FALSE);
event_type = gst_structure_get_string (structure, "event");
g_return_val_if_fail (event_type != NULL, FALSE);
if (strcmp (event_type, "key-press") == 0) {
const gchar *key;
key = gst_structure_get_string (structure, "key");
g_return_val_if_fail (key != NULL, FALSE);
if (strcmp (key, "Left") == 0) {
/* Seek backward by 5 secs */
gst_navseek_seek (navseek, -1.0 * navseek->seek_offset * GST_SECOND);
} else if (strcmp (key, "Right") == 0) {
/* Seek forward */
gst_navseek_seek (navseek, navseek->seek_offset * GST_SECOND);
} else if (strcmp (key, "s") == 0) {
/* Grab the next frame as the start frame of a segment */
navseek->grab_seg_start = TRUE;
} else if (strcmp (key, "e") == 0) {
/* Grab the next frame as the end frame of a segment */
navseek->grab_seg_end = TRUE;
} else if (strcmp (key, "l") == 0) {
/* Toggle the loop flag. If we have both start and end segment times send a seek */
navseek->loop = !navseek->loop;
gst_navseek_segseek (navseek);
}
} else {
break;
}
gst_event_unref (event);
event = NULL;
}
break;
default:
break;
}
if (event && GST_PAD_IS_LINKED (GST_BASE_TRANSFORM (navseek)->sinkpad)) {
GstPad *peer_pad = gst_pad_get_peer (GST_BASE_TRANSFORM (navseek)->sinkpad);
ret = gst_pad_send_event (peer_pad, event);
gst_object_unref (peer_pad);
}
return ret;
}
static void
gst_navseek_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstNavSeek *navseek = GST_NAVSEEK (object);
switch (prop_id) {
case ARG_SEEKOFFSET:
GST_OBJECT_LOCK (navseek);
navseek->seek_offset = g_value_get_double (value);
GST_OBJECT_UNLOCK (navseek);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_navseek_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstNavSeek *navseek = GST_NAVSEEK (object);
switch (prop_id) {
case ARG_SEEKOFFSET:
GST_OBJECT_LOCK (navseek);
g_value_set_double (value, navseek->seek_offset);
GST_OBJECT_UNLOCK (navseek);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_navseek_event (GstBaseTransform * trans, GstEvent * event)
{
GstNavSeek *navseek = GST_NAVSEEK (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
GST_OBJECT_LOCK (navseek);
if (navseek->loop)
gst_navseek_segseek (navseek);
GST_OBJECT_UNLOCK (navseek);
break;
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->event (trans, event);
}
static GstFlowReturn
gst_navseek_transform_ip (GstBaseTransform * basetrans, GstBuffer * buf)
{
GstNavSeek *navseek = GST_NAVSEEK (basetrans);
GST_OBJECT_LOCK (navseek);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
if (navseek->grab_seg_start) {
navseek->segment_start = GST_BUFFER_TIMESTAMP (buf);
navseek->segment_end = GST_CLOCK_TIME_NONE;
navseek->grab_seg_start = FALSE;
}
if (navseek->grab_seg_end) {
navseek->segment_end = GST_BUFFER_TIMESTAMP (buf);
navseek->grab_seg_end = FALSE;
gst_navseek_segseek (navseek);
}
}
GST_OBJECT_UNLOCK (navseek);
return GST_FLOW_OK;
}
static gboolean
gst_navseek_start (GstBaseTransform * trans)
{
/* anything we should be doing here? */
return TRUE;
}
static gboolean
gst_navseek_stop (GstBaseTransform * trans)
{
/* anything we should be doing here? */
return TRUE;
}
gboolean
gst_navseek_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "navseek", GST_RANK_NONE,
GST_TYPE_NAVSEEK);
}