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gst/videorate/gstvideorate.c: Handle segment seeks

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Original commit message from CVS:
* gst/videorate/gstvideorate.c: (gst_videorate_blank_data),
(gst_videorate_event), (gst_videorate_chain):
Handle segment seeks
This commit is contained in:
Edward Hervey 2005-11-16 17:56:40 +00:00
parent 99fb91493e
commit a780198451
3 changed files with 65 additions and 25 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
2005-11-16 Edward Hervey <edward@fluendo.com>
* gst/videorate/gstvideorate.c: (gst_videorate_blank_data),
(gst_videorate_event), (gst_videorate_chain):
Handle segment seeks
2005-11-16 Wim Taymans <wim@fluendo.com>
* gst-libs/gst/audio/gstbaseaudiosink.c:

2
common

@ -1 +1 @@
Subproject commit 657b549dfb640a76f3d7ab7676e453c801a83dca
Subproject commit 3aa0adc0cc4539ec9bb62ccf6d535240dad19e58

82
gst/videorate/gstvideorate.c
View file

@ -48,11 +48,17 @@ struct _GstVideorate
/* video state */
gdouble from_fps, to_fps;
guint64 next_ts;
guint64 first_ts;
guint64 next_ts; /* Timestamp of next buffer to output */
guint64 first_ts; /* Timestamp of first buffer */
GstBuffer *prevbuf;
guint64 prev_ts; /* Previous buffer timestamp */
guint64 in, out, dup, drop;
/* segment handling */
gint64 segment_start;
gint64 segment_stop;
gint64 segment_accum;
gboolean silent;
gdouble new_pref;
};
@ -343,6 +349,11 @@ gst_videorate_blank_data (GstVideorate * videorate)
videorate->dup = 0;
videorate->next_ts = 0LL;
videorate->first_ts = 0LL;
videorate->prev_ts = 0LL;
videorate->segment_start = 0;
videorate->segment_stop = 0;
videorate->segment_accum = 0;
}
static void
@ -377,34 +388,47 @@ gst_videorate_event (GstPad * pad, GstEvent * event)
videorate = GST_VIDEORATE (GST_PAD_PARENT (pad));
if (!videorate->prevbuf)
goto done;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
{
gint64 start, stop;
gint64 start, stop, base;
gdouble rate;
gboolean update;
GstFormat format;
GST_STREAM_LOCK (pad);
gst_event_parse_newsegment (event, NULL, NULL, &format, &start, &stop,
NULL);
gst_event_parse_newsegment (event, &update, &rate, &format, &start, &stop,
&base);
if (format != GST_FORMAT_TIME) {
GST_WARNING ("Got discont but doesn't have GST_FORMAT_TIME value");
} else {
gst_videorate_blank_data (videorate);
videorate->first_ts = start;
/*
We just want to update the accumulated stream_time.
*/
videorate->segment_accum +=
videorate->segment_stop - videorate->segment_start;
videorate->segment_start = start;
videorate->segment_stop = stop;
GST_DEBUG_OBJECT (videorate, "Updated segment_accum:%" GST_TIME_FORMAT
" segment_start:%" GST_TIME_FORMAT " segment_stop:%"
GST_TIME_FORMAT, GST_TIME_ARGS (videorate->segment_accum),
GST_TIME_ARGS (videorate->segment_start),
GST_TIME_ARGS (videorate->segment_stop));
}
GST_STREAM_UNLOCK (pad);
break;
}
case GST_EVENT_FLUSH_STOP:
{
gst_videorate_blank_data (videorate);
}
default:
break;
}
done:
return gst_pad_event_default (pad, event);
}
@ -426,23 +450,21 @@ gst_videorate_chain (GstPad * pad, GstBuffer * buffer)
if (videorate->prevbuf == NULL) {
/* We're sure it's a GstBuffer here */
videorate->prevbuf = buffer;
videorate->next_ts = videorate->first_ts = GST_BUFFER_TIMESTAMP (buffer);
videorate->next_ts = videorate->first_ts = videorate->prev_ts =
GST_BUFFER_TIMESTAMP (buffer) - videorate->segment_start +
videorate->segment_accum;
} else {
GstClockTime prevtime, intime;
gint count = 0;
gint64 diff1, diff2;
prevtime = GST_BUFFER_TIMESTAMP (videorate->prevbuf);
/* If it's a GstEvent, we give him the time of the next outputed frame */
#if 0
intime = (GST_IS_EVENT (data))
? videorate->next_ts +
(1 / videorate->to_fps * GST_SECOND) : GST_BUFFER_TIMESTAMP (buffer);
#endif
intime = GST_BUFFER_TIMESTAMP (buffer);
prevtime = videorate->prev_ts;
intime =
GST_BUFFER_TIMESTAMP (buffer) - videorate->segment_start +
videorate->segment_accum;
GST_LOG_OBJECT (videorate,
"prev buf %" GST_TIME_FORMAT " new buf %" GST_TIME_FORMAT
"BEGINNING prev buf %" GST_TIME_FORMAT " new buf %" GST_TIME_FORMAT
" outgoing ts %" GST_TIME_FORMAT, GST_TIME_ARGS (prevtime),
GST_TIME_ARGS (intime), GST_TIME_ARGS (videorate->next_ts));
@ -480,13 +502,22 @@ gst_videorate_chain (GstPad * pad, GstBuffer * buffer)
(videorate->out / videorate->to_fps * GST_SECOND);
GST_BUFFER_DURATION (outbuf) =
videorate->next_ts - GST_BUFFER_TIMESTAMP (outbuf);
/* adapt for looping */
GST_BUFFER_TIMESTAMP (outbuf) -= videorate->segment_accum;
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (videorate->srcpad));
if ((res = gst_pad_push (videorate->srcpad, outbuf)) != GST_FLOW_OK)
GST_LOG_OBJECT (videorate,
"old is best, dup, pushing buffer outgoing ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (videorate->next_ts));
if ((res = gst_pad_push (videorate->srcpad, outbuf)) != GST_FLOW_OK) {
GST_WARNING_OBJECT (videorate, "couldn't push buffer on srcpad:%d",
res);
goto done;
}
GST_LOG_OBJECT (videorate,
"old is best, dup, outgoing ts %" GST_TIME_FORMAT,
"old is best, dup, pushed buffer outgoing ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (videorate->next_ts));
}
/* continue while the first one was the best */
@ -509,7 +540,7 @@ gst_videorate_chain (GstPad * pad, GstBuffer * buffer)
GST_TIME_FORMAT, GST_TIME_ARGS (videorate->next_ts));
}
GST_LOG_OBJECT (videorate,
"left loop, putting new in old, diff1 %" GST_TIME_FORMAT
"END, putting new in old, diff1 %" GST_TIME_FORMAT
", diff2 %" GST_TIME_FORMAT ", next_ts %" GST_TIME_FORMAT
", in %lld, out %lld, drop %lld, dup %lld", GST_TIME_ARGS (diff1),
GST_TIME_ARGS (diff2), GST_TIME_ARGS (videorate->next_ts),
@ -518,6 +549,9 @@ gst_videorate_chain (GstPad * pad, GstBuffer * buffer)
/* swap in new one when it's the best */
gst_buffer_unref (videorate->prevbuf);
videorate->prevbuf = buffer;
videorate->prev_ts =
GST_BUFFER_TIMESTAMP (buffer) - videorate->segment_start +
videorate->segment_accum;
}
done: