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ext/alsa/gstalsa.c: cast to GstClockTime to get higher granularity

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Original commit message from CVS:
* ext/alsa/gstalsa.c: (gst_alsa_samples_to_timestamp):
cast to GstClockTime to get higher granularity
* ext/alsa/gstalsasink.c: (gst_alsa_sink_check_event):
use gst_element_set_time_delay to get the exact time
* ext/mad/gstmad.c: (gst_mad_chain):
use the negotiated rate instead of the current frame's rate which
might be wrong because of bit errors. This avoids emitting totally
bogus timestamps and screwing sync.
(fixes #143454)
This commit is contained in:
Benjamin Otte 2004-06-07 01:41:37 +00:00
parent 5b6ffe42de
commit b0d718fcc3
3 changed files with 19 additions and 4 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2004-06-07 Benjamin Otte <otte@gnome.org>
* ext/alsa/gstalsa.c: (gst_alsa_samples_to_timestamp):
cast to GstClockTime to get higher granularity
* ext/alsa/gstalsasink.c: (gst_alsa_sink_check_event):
use gst_element_set_time_delay to get the exact time
* ext/mad/gstmad.c: (gst_mad_chain):
use the negotiated rate instead of the current frame's rate which
might be wrong because of bit errors. This avoids emitting totally
bogus timestamps and screwing sync.
(fixes #143454)
2004-06-07 Tim-Philipp Müller <t.i.m@zen.co.uk>
reviewed by Benjamin Otte <otte@gnome.org>

2
ext/alsa/gstalsa.c
View file

@ -1650,7 +1650,7 @@ gst_alsa_timestamp_to_samples (GstAlsa * this, GstClockTime time)
inline GstClockTime
gst_alsa_samples_to_timestamp (GstAlsa * this, snd_pcm_uframes_t samples)
{
return (GstClockTime) (samples * GST_SECOND / this->format->rate);
return ((GstClockTime) samples) * GST_SECOND / this->format->rate;
}
inline snd_pcm_uframes_t

9
ext/alsa/gstalsasink.c
View file

@ -210,20 +210,23 @@ gst_alsa_sink_check_event (GstAlsaSink * sink, gint pad_nr)
break;
case GST_EVENT_DISCONTINUOUS:
{
GstClockTime value;
GstClockTime value, delay;
/* only the first pad may seek */
if (pad_nr != 0) {
break;
}
delay =
GST_SECOND * this->transmitted / this->format->rate -
gst_alsa_sink_get_time (this);
if (gst_event_discont_get_value (event, GST_FORMAT_TIME, &value)) {
gst_element_set_time (GST_ELEMENT (this), value);
gst_element_set_time_delay (GST_ELEMENT (this), value, delay);
} else if (this->format &&
(gst_event_discont_get_value (event, GST_FORMAT_DEFAULT, &value) ||
gst_event_discont_get_value (event, GST_FORMAT_BYTES,
&value))) {
value = gst_alsa_samples_to_timestamp (this, value);
gst_element_set_time (GST_ELEMENT (this), value);
gst_element_set_time_delay (GST_ELEMENT (this), value, delay);
} else {
GST_WARNING_OBJECT (this,
"couldn't extract time from discont event. Bad things might happen!");