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gst/videorate/gstvideorate.c: Event handling (fixes #159986).

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Original commit message from CVS:
Reviewed by:  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
* gst/videorate/gstvideorate.c: (gst_videorate_blank_data),
(gst_videorate_init), (gst_videorate_chain),
(gst_videorate_change_state):
Event handling (fixes #159986).
This commit is contained in:
Ronald S. Bultje 2004-12-19 13:16:24 +00:00
parent 50f80de3be
commit 3b7785eb8e
2 changed files with 63 additions and 16 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2004-12-19 Edward Hervey <bilboed@bilboed.com>
Reviewed by: Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* gst/videorate/gstvideorate.c: (gst_videorate_blank_data),
(gst_videorate_init), (gst_videorate_chain),
(gst_videorate_change_state):
Event handling (fixes #159986).
2004-12-19 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* gst-libs/gst/riff/riff-media.c:

70
gst/videorate/gstvideorate.c
View file

@ -51,6 +51,7 @@ struct _GstVideorate
/* video state */
gdouble from_fps, to_fps;
guint64 next_ts;
guint64 first_ts;
GstBuffer *prevbuf;
guint64 in, out, dup, drop;
@ -285,6 +286,21 @@ gst_videorate_link (GstPad * pad, const GstCaps * caps)
return GST_PAD_LINK_OK;
}
static void
gst_videorate_blank_data (GstVideorate * videorate)
{
GST_DEBUG ("resetting data");
if (videorate->prevbuf)
gst_buffer_unref (videorate->prevbuf);
videorate->prevbuf = NULL;
videorate->in = 0;
videorate->out = 0;
videorate->drop = 0;
videorate->dup = 0;
videorate->next_ts = 0LL;
videorate->first_ts = 0LL;
}
static void
gst_videorate_init (GstVideorate * videorate)
{
@ -306,11 +322,7 @@ gst_videorate_init (GstVideorate * videorate)
gst_pad_set_getcaps_function (videorate->srcpad, gst_videorate_getcaps);
gst_pad_set_link_function (videorate->srcpad, gst_videorate_link);
videorate->prevbuf = NULL;
videorate->in = 0;
videorate->out = 0;
videorate->drop = 0;
videorate->dup = 0;
gst_videorate_blank_data (videorate);
videorate->silent = DEFAULT_SILENT;
videorate->new_pref = DEFAULT_NEW_PREF;
}
@ -324,29 +336,49 @@ gst_videorate_chain (GstPad * pad, GstData * data)
if (GST_IS_EVENT (data)) {
GstEvent *event = GST_EVENT (data);
gst_pad_event_default (pad, event);
return;
if (!videorate->prevbuf) {
gst_pad_event_default (pad, event);
return;
}
if (GST_EVENT_TYPE (event) == GST_EVENT_DISCONTINUOUS) {
gint64 etime;
if (!(gst_event_discont_get_value (event, GST_FORMAT_TIME, &etime)))
GST_WARNING ("Got discont but doesn't have GST_FORMAT_TIME value");
else {
gst_videorate_blank_data (videorate);
videorate->first_ts = etime;
}
gst_pad_event_default (pad, event);
return;
}
}
buf = GST_BUFFER (data);
/* pull in 2 buffers */
if (videorate->prevbuf == NULL) {
/* We're sure it's a GstBuffer here */
videorate->prevbuf = buf;
videorate->next_ts = videorate->first_ts = GST_BUFFER_TIMESTAMP (buf);
} else {
GstClockTime prevtime, intime;
gint count = 0;
gint64 diff1, diff2;
prevtime = GST_BUFFER_TIMESTAMP (videorate->prevbuf);
intime = GST_BUFFER_TIMESTAMP (buf);
/* If it's a GstEvent, we give him the time of the next outputed frame */
intime = (GST_IS_EVENT (data))
? videorate->next_ts +
(1 / videorate->to_fps * GST_SECOND) : GST_BUFFER_TIMESTAMP (buf);
GST_LOG_OBJECT (videorate,
"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));
videorate->in++;
if (GST_IS_BUFFER (data))
videorate->in++;
/* got 2 buffers, see which one is the best */
do {
@ -375,7 +407,9 @@ gst_videorate_chain (GstPad * pad, GstData * data)
GST_BUFFER_SIZE (videorate->prevbuf));
GST_BUFFER_TIMESTAMP (outbuf) = videorate->next_ts;
videorate->out++;
videorate->next_ts = videorate->out / videorate->to_fps * GST_SECOND;
videorate->next_ts =
videorate->first_ts +
(videorate->out / videorate->to_fps * GST_SECOND);
GST_BUFFER_DURATION (outbuf) =
videorate->next_ts - GST_BUFFER_TIMESTAMP (outbuf);
gst_pad_push (videorate->srcpad, GST_DATA (outbuf));
@ -405,14 +439,17 @@ gst_videorate_chain (GstPad * pad, GstData * data)
}
GST_LOG_OBJECT (videorate,
"left loop, putting new in old, diff1 %" GST_TIME_FORMAT
", diff2 %" 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), videorate->in, videorate->out, videorate->drop,
videorate->dup);
GST_TIME_ARGS (diff2), GST_TIME_ARGS (videorate->next_ts),
videorate->in, videorate->out, videorate->drop, videorate->dup);
/* swap in new one when it's the best */
gst_buffer_unref (videorate->prevbuf);
videorate->prevbuf = buf;
if (GST_IS_BUFFER (data)) {
/* swap in new one when it's the best */
gst_buffer_unref (videorate->prevbuf);
videorate->prevbuf = buf;
} else
gst_pad_event_default (pad, GST_EVENT (data));
}
}
@ -473,6 +510,7 @@ gst_videorate_change_state (GstElement * element)
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_READY:
gst_videorate_blank_data (GST_VIDEORATE (element));
break;
default:
break;