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implement clocking set clock counter back to zero on ready->paused move open/close to ready/null instead of paused/re...

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Original commit message from CVS:
* implement clocking
* set clock counter back to zero on ready->paused
* move open/close to ready/null instead of paused/ready.
* add random typos
This commit is contained in:
Ronald S. Bultje 2003-03-30 21:19:08 +00:00
parent 74fc60e9c8
commit 8307214acf
2 changed files with 62 additions and 4 deletions
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63
sys/oss/gstosssrc.c
View file

@ -31,6 +31,7 @@
#include <gstosssrc.h>
#include <gstosscommon.h>
#include <gstossclock.h>
/* elementfactory information */
static GstElementDetails gst_osssrc_details = {
@ -99,6 +100,10 @@ static void gst_osssrc_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec);
static GstElementStateReturn gst_osssrc_change_state (GstElement *element);
static void gst_osssrc_set_clock (GstElement *element, GstClock *clock);
static GstClock* gst_osssrc_get_clock (GstElement *element);
static GstClockTime gst_osssrc_get_time (GstClock *clock, gpointer data);
static const GstEventMask* gst_osssrc_get_event_masks (GstPad *pad);
static gboolean gst_osssrc_src_event (GstPad *pad, GstEvent *event);
static gboolean gst_osssrc_send_event (GstElement *element, GstEvent *event);
@ -160,6 +165,9 @@ gst_osssrc_class_init (GstOssSrcClass *klass)
gstelement_class->change_state = gst_osssrc_change_state;
gstelement_class->send_event = gst_osssrc_send_event;
gstelement_class->set_clock = gst_osssrc_set_clock;
gstelement_class->get_clock = gst_osssrc_get_clock;
}
static void
@ -183,6 +191,11 @@ gst_osssrc_init (GstOssSrc *osssrc)
osssrc->buffersize = 4096;
osssrc->curoffset = 0;
osssrc->provided_clock = GST_CLOCK (gst_oss_clock_new ("ossclock",
gst_osssrc_get_time,
osssrc));
osssrc->clock = NULL;
}
static GstPadLinkReturn
@ -239,6 +252,41 @@ gst_osssrc_negotiate (GstPad *pad)
}
return TRUE;
}
static GstClockTime
gst_osssrc_get_time (GstClock *clock, gpointer data)
{
GstOssSrc *osssrc = GST_OSSSRC (data);
audio_buf_info info;
if (!osssrc->common.bps)
return 0;
if (ioctl(osssrc->common.fd, SNDCTL_DSP_GETISPACE, &info) < 0)
return 0;
return (osssrc->curoffset + info.bytes) * GST_SECOND / osssrc->common.bps;
}
static GstClock*
gst_osssrc_get_clock (GstElement *element)
{
GstOssSrc *osssrc;
osssrc = GST_OSSSRC (element);
return GST_CLOCK (osssrc->provided_clock);
}
static void
gst_osssrc_set_clock (GstElement *element, GstClock *clock)
{
GstOssSrc *osssrc;
osssrc = GST_OSSSRC (element);
osssrc->clock = clock;
}
static GstBuffer *
gst_osssrc_get (GstPad *pad)
@ -289,6 +337,8 @@ gst_osssrc_get (GstPad *pad)
GST_BUFFER_SIZE (buf) = readbytes;
GST_BUFFER_OFFSET (buf) = src->curoffset;
/* FIXME: we are falsely assuming that we are the master clock here */
GST_BUFFER_TIMESTAMP (buf) = src->curoffset * GST_SECOND / src->common.bps;
src->curoffset += readbytes;
@ -355,8 +405,6 @@ gst_osssrc_change_state (GstElement *element)
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
break;
case GST_STATE_READY_TO_PAUSED:
if (!GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) {
gchar *error;
if (!gst_osscommon_open_audio (&osssrc->common, GST_OSSCOMMON_READ, &error)) {
@ -367,19 +415,26 @@ gst_osssrc_change_state (GstElement *element)
GST_FLAG_SET (osssrc, GST_OSSSRC_OPEN);
}
break;
case GST_STATE_READY_TO_PAUSED:
osssrc->curoffset = 0;
break;
case GST_STATE_PAUSED_TO_PLAYING:
gst_oss_clock_set_active (osssrc->provided_clock, TRUE);
break;
case GST_STATE_PLAYING_TO_PAUSED:
gst_oss_clock_set_active (osssrc->provided_clock, FALSE);
break;
case GST_STATE_PAUSED_TO_READY:
if (GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN))
ioctl (osssrc->common.fd, SNDCTL_DSP_RESET, 0);
break;
case GST_STATE_READY_TO_NULL:
if (GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) {
gst_osscommon_close_audio (&osssrc->common);
GST_FLAG_UNSET (osssrc, GST_OSSSRC_OPEN);
}
gst_osscommon_init (&osssrc->common);
break;
case GST_STATE_READY_TO_NULL:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)

3
sys/oss/gstosssrc.h
View file

@ -63,6 +63,9 @@ struct _GstOssSrc {
/* blocking */
gulong curoffset;
gulong buffersize;
/* clocks */
GstClock *provided_clock, *clock;
};
struct _GstOssSrcClass {