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dtmfsrc: Allow for any samplerate

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This commit is contained in:
Olivier Crête 2009-11-04 20:05:17 -05:00
parent f46c247757
commit da0d9810af
1 changed files with 18 additions and 49 deletions
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67
gst/dtmf/gstdtmfsrc.c
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@ -218,7 +218,7 @@ GST_STATIC_PAD_TEMPLATE ("src",
"width = (int) 16, "
"depth = (int) 16, "
"endianness = (int) " G_STRINGIFY (G_BYTE_ORDER) ", "
"signed = (bool) true, " "rate = (int) 8000, " "channels = (int) 1")
"signed = (bool) true, rate = (int) [1, MAX], channels = (int) 1")
);
GST_BOILERPLATE (GstDTMFSrc, gst_dtmf_src, GstBaseSrc, GST_TYPE_BASE_SRC);
@ -804,63 +804,32 @@ gst_dtmf_src_unlock_stop (GstBaseSrc * src)
static gboolean
gst_dtmf_src_negotiate (GstBaseSrc * basesrc)
{
GstCaps *srccaps, *peercaps;
GstDTMFSrc *dtmfsrc = GST_DTMF_SRC (basesrc);
gboolean ret = FALSE;
GstCaps *caps;
GstStructure *s;
gboolean ret;
srccaps = gst_caps_new_simple ("audio/x-raw-int",
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE, "channels", G_TYPE_INT, 1, NULL);
caps = gst_pad_get_allowed_caps (GST_BASE_SRC_PAD (basesrc));
peercaps = gst_pad_peer_get_caps (GST_BASE_SRC_PAD (basesrc));
if (!caps)
caps =
gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD
(basesrc)));
if (peercaps == NULL) {
/* no peer caps, just add the other properties */
gst_caps_set_simple (srccaps,
"rate", G_TYPE_INT, dtmfsrc->sample_rate, NULL);
} else {
GstStructure *s;
gint sample_rate;
GstCaps *temp = NULL;
gst_caps_truncate (caps);
s = gst_caps_get_structure (caps, 0);
/* peer provides caps we can use to fixate, intersect. This always returns a
* writable caps. */
temp = gst_caps_intersect (srccaps, peercaps);
gst_caps_unref (srccaps);
gst_caps_unref (peercaps);
gst_structure_fixate_field_nearest_int (s, "rate", DEFAULT_SAMPLE_RATE);
if (!temp) {
GST_DEBUG_OBJECT (dtmfsrc, "Could not get intersection with peer caps");
return FALSE;
}
if (gst_caps_is_empty (temp)) {
GST_DEBUG_OBJECT (dtmfsrc, "Intersection with peer caps is empty");
gst_caps_unref (temp);
return FALSE;
}
/* now fixate, start by taking the first caps */
gst_caps_truncate (temp);
srccaps = temp;
/* get first structure */
s = gst_caps_get_structure (srccaps, 0);
if (gst_structure_get_int (s, "rate", &sample_rate)) {
dtmfsrc->sample_rate = sample_rate;
GST_LOG_OBJECT (dtmfsrc, "using rate from caps %d", dtmfsrc->sample_rate);
} else {
GST_LOG_OBJECT (dtmfsrc, "using existing rate %d", dtmfsrc->sample_rate);
}
gst_structure_set (s, "rate", G_TYPE_INT, dtmfsrc->sample_rate, NULL);
if (!gst_structure_get_int (s, "rate", &dtmfsrc->sample_rate)) {
GST_ERROR_OBJECT (dtmfsrc, "Could not get rate");
gst_caps_unref (caps);
return FALSE;
}
ret = gst_pad_set_caps (GST_BASE_SRC_PAD (basesrc), srccaps);
ret = gst_pad_set_caps (GST_BASE_SRC_PAD (basesrc), caps);
gst_caps_unref (srccaps);
gst_caps_unref (caps);
return ret;
}