mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-26 17:18:15 +00:00
Code Issues 1 Projects Releases Wiki Activity

Use events rather than properties

Browse source 
Original commit message from CVS:
Use events rather than properties
When the speed property is set, set the ripping speed.
This commit is contained in:
Iain Holmes 2002-09-28 23:28:37 +00:00
parent 5264e71774
commit b376650e30
1 changed files with 180 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

184
ext/cdparanoia/gstcdparanoia.c
View file

@ -1,3 +1,4 @@
/* -*- Mode: C; tab-width: 2; indent-tabs-mode: t; c-basic-offset: 2 -*- */
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
@ -102,12 +103,16 @@ enum {
ARG_0,
ARG_LOCATION,
ARG_GENERIC_DEVICE,
/*
ARG_START_TRACK,
ARG_END_TRACK,
*/
ARG_LAST_TRACK,
ARG_CUR_TRACK,
/*
ARG_START_SECTOR,
ARG_END_SECTOR,
*/
ARG_CUR_SECTOR,
ARG_DEFAULT_SECTORS,
ARG_SEARCH_OVERLAP,
@ -133,6 +138,15 @@ static void cdparanoia_set_property (GObject *object, guint prop_id, const GV
static void cdparanoia_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static GstBuffer* cdparanoia_get (GstPad *pad);
static gboolean cdparanoia_event (GstPad *pad, GstEvent *event);
static const GstEventMask *cdparanoia_get_event_mask (GstPad *pad);
static const GstFormat *cdparanoia_get_formats (GstPad *pad);
static gboolean cdparanoia_convert (GstPad *pad,
GstFormat src_format,
gint64 src_value,
GstFormat *dest_format,
gint64 *dest_value);
static GstElementStateReturn cdparanoia_change_state (GstElement *element);
@ -140,6 +154,8 @@ static GstElementStateReturn cdparanoia_change_state (GstElement *element);
static GstElementClass *parent_class = NULL;
static guint cdparanoia_signals[LAST_SIGNAL] = { 0 };
static GstFormat track_format;
GType
cdparanoia_get_type (void)
{
@ -193,24 +209,30 @@ cdparanoia_class_init (CDParanoiaClass *klass)
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_GENERIC_DEVICE,
g_param_spec_string("generic_device","generic_device","generic_device",
NULL, G_PARAM_READWRITE)); /* CHECKME */
#if 0
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_START_TRACK,
g_param_spec_int("start_track","start_track","start_track",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
G_MININT,G_MAXINT,1,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_END_TRACK,
g_param_spec_int("end_track","end_track","end_track",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
#endif
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LAST_TRACK,
g_param_spec_int("last_track","last_track","last_track",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CUR_TRACK,
g_param_spec_int("cur_track","cur_track","cur_track",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
#if 0
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_START_SECTOR,
g_param_spec_int("start_sector","start_sector","start_sector",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_END_SECTOR,
g_param_spec_int("end_sector","end_sector","end_sector",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
#endif
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CUR_SECTOR,
g_param_spec_int("cur_sector","cur_sector","cur_sector",
G_MININT,G_MAXINT,0,G_PARAM_READABLE)); /* CHECKME */
@ -266,6 +288,11 @@ cdparanoia_init (CDParanoia *cdparanoia)
cdparanoia->srcpad = gst_pad_new_from_template (
GST_PAD_TEMPLATE_GET (cdparanoia_src_factory), "src");
gst_pad_set_get_function (cdparanoia->srcpad, cdparanoia_get);
gst_pad_set_event_function (cdparanoia->srcpad, cdparanoia_event);
gst_pad_set_event_mask_function (cdparanoia->srcpad, cdparanoia_get_event_mask);
gst_pad_set_convert_function (cdparanoia->srcpad, cdparanoia_convert);
gst_pad_set_formats_function (cdparanoia->srcpad, cdparanoia_get_formats);
gst_element_add_pad (GST_ELEMENT (cdparanoia), cdparanoia->srcpad);
cdparanoia->device = g_strdup ("/dev/cdrom");
@ -327,18 +354,30 @@ cdparanoia_set_property (GObject *object, guint prop_id, const GValue *value, GP
else
src->generic_device = g_strdup (g_value_get_string (value));
break;
case ARG_START_SECTOR:
#if 0
case ARG_START_SECTOR:
src->start_sector = g_value_get_int (value);
src->cur_sector = src->start_sector;
paranoia_seek (src->p, src->start_sector, SEEK_SET);
break;
case ARG_END_SECTOR:
src->end_sector = g_value_get_int (value);
break;
case ARG_START_TRACK:
src->start_track = g_value_get_int (value);
/* Override the start_sector */
src->start_sector = cdda_track_firstsector (src->d, src->start_track);
src->cur_sector = src->start_sector;
paranoia_seek (src->p, src->start_sector, SEEK_SET);
break;
case ARG_END_TRACK:
src->end_track = g_value_get_int (value);
break;
/* Override the end_sector */
src->end_sector = cdda_track_lastsector (src->d, src->end_track);
break;
#endif
case ARG_DEFAULT_SECTORS:
src->default_sectors = g_value_get_int (value);
break;
@ -350,6 +389,7 @@ cdparanoia_set_property (GObject *object, guint prop_id, const GValue *value, GP
break;
case ARG_READ_SPEED:
src->read_speed = g_value_get_int (value);
cdda_speed_set (src->d, src->read_speed);
break;
case ARG_TOC_OFFSET:
src->toc_offset = g_value_get_int (value);
@ -388,21 +428,25 @@ cdparanoia_get_property (GObject *object, guint prop_id, GValue *value, GParamSp
case ARG_GENERIC_DEVICE:
g_value_set_string (value, src->generic_device);
break;
case ARG_START_SECTOR:
#if 0
case ARG_START_SECTOR:
g_value_set_int (value, src->start_sector);
break;
case ARG_END_SECTOR:
g_value_set_int (value, src->end_sector);
break;
#endif
case ARG_CUR_SECTOR:
g_value_set_int (value, src->cur_sector);
break;
#if 0
case ARG_START_TRACK:
g_value_set_int (value, src->start_track);
break;
case ARG_END_TRACK:
g_value_set_int (value, src->end_track);
break;
#endif
case ARG_CUR_TRACK:
g_value_set_int (value, src->cur_track);
break;
@ -479,6 +523,7 @@ cdparanoia_get (GstPad *pad)
/* update current sector and stop things if appropriate */
src->cur_sector++;
g_print ("cur: %ld end: %d\n", src->cur_sector, src->end_sector);
if (src->cur_sector == src->end_sector) {
GST_DEBUG (0,"setting EOS");
gst_element_set_eos(GST_ELEMENT(src));
@ -792,6 +837,134 @@ cdparanoia_change_state (GstElement *element)
return GST_STATE_SUCCESS;
}
static const GstEventMask *
cdparanoia_get_event_mask (GstPad *pad)
{
static const GstEventMask masks[] = {
{ GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_METHOD_CUR },
{ 0, }
};
return masks;
}
static gboolean
cdparanoia_event (GstPad *pad,
GstEvent *event)
{
CDParanoia *src;
gint64 offset, endoffset;
int format, start_sector, end_sector;
src = CDPARANOIA (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
format = GST_EVENT_SEEK_FORMAT (event);
offset = GST_EVENT_SEEK_OFFSET (event);
if (format == GST_FORMAT_UNITS) {
start_sector = (int) offset;
} else if (format == track_format) {
start_sector = cdda_track_firstsector (src->d, (int) offset);
} else {
goto error;
}
switch (GST_EVENT_SEEK_METHOD (event)) {
case GST_SEEK_METHOD_SET:
src->start_sector = start_sector;;
src->cur_sector = src->start_sector;
paranoia_seek (src->p, src->start_sector, SEEK_SET);
GST_DEBUG (0, "seeked to %d", src->start_sector);
break;
case GST_SEEK_METHOD_CUR:
src->start_sector += start_sector;
src->cur_sector = src->start_sector;
paranoia_seek (src->p, src->start_sector, SEEK_SET);
GST_DEBUG (0, "seeked to %d", src->start_sector);
break;
default:
break;
}
break;
case GST_EVENT_SEEK_SEGMENT:
format = GST_EVENT_SEEK_FORMAT (event);
offset = GST_EVENT_SEEK_OFFSET (event);
endoffset = GST_EVENT_SEEK_ENDOFFSET (event);
if (format == GST_FORMAT_UNITS) {
start_sector = (int) offset;
end_sector = (int) endoffset;
} else if (format == track_format) {
start_sector = cdda_track_firstsector (src->d, (int) offset);
end_sector = cdda_track_lastsector (src->d, (int) endoffset);
} else {
goto error;
}
/* Pretend these are tracks for testing */
src->start_sector = start_sector;
src->end_sector = end_sector;
src->cur_sector = src->start_sector;
paranoia_seek (src->p, src->start_sector, SEEK_SET);
GST_DEBUG (0, "seeked from %d to %d", src->start_sector, src->end_sector);
break;
default:
goto error;
break;
}
return TRUE;
error:
g_print ("Event error\n");
return FALSE;
}
static const GstFormat *
cdparanoia_get_formats (GstPad *pad)
{
static const GstFormat formats[] = {
GST_FORMAT_TIME,
GST_FORMAT_UNITS,
0
};
return formats;
}
static gboolean
cdparanoia_convert (GstPad *pad,
GstFormat src_format,
gint64 src_value,
GstFormat *dest_format,
gint64 *dest_value)
{
gboolean res = TRUE;
CDParanoia *src;
src = CDPARANOIA (gst_pad_get_parent (pad));
switch (src_format) {
case GST_FORMAT_TIME:
break;
default:
break;
}
return res;
}
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
@ -805,6 +978,9 @@ plugin_init (GModule *module, GstPlugin *plugin)
/* register the source's caps */
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (cdparanoia_src_factory));
/* Register the track format */
track_format = gst_format_register ("track", "The CD track to select");
/* and add the cdparanoia element factory to the plugin */
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));