Commit 781bc330 authored by Wim Taymans's avatar Wim Taymans
Browse files

gst/law/: Ported alaw and mulaw plugins to 0.9, fixed the negotiation as well.

Original commit message from CVS:
* gst/law/alaw-decode.c: (alawdec_getcaps), (alawdec_setcaps),
(gst_alawdec_init), (gst_alawdec_chain):
* gst/law/alaw-encode.c: (alawenc_getcaps), (alawenc_setcaps),
(gst_alawenc_init), (gst_alawenc_chain):
* gst/law/mulaw-decode.c: (mulawdec_getcaps), (mulawdec_setcaps),
(gst_mulawdec_init), (gst_mulawdec_chain):
* gst/law/mulaw-encode.c: (mulawenc_getcaps), (mulawenc_setcaps),
(gst_mulawenc_init), (gst_mulawenc_chain):
Ported alaw and mulaw plugins to 0.9, fixed the negotiation as
well.
parent d1307cd8
2005-05-06 Wim Taymans <wim@fluendo.com>
* gst/law/alaw-decode.c: (alawdec_getcaps), (alawdec_setcaps),
(gst_alawdec_init), (gst_alawdec_chain):
* gst/law/alaw-encode.c: (alawenc_getcaps), (alawenc_setcaps),
(gst_alawenc_init), (gst_alawenc_chain):
* gst/law/mulaw-decode.c: (mulawdec_getcaps), (mulawdec_setcaps),
(gst_mulawdec_init), (gst_mulawdec_chain):
* gst/law/mulaw-encode.c: (mulawenc_getcaps), (mulawenc_setcaps),
(gst_mulawenc_init), (gst_mulawenc_chain):
Ported alaw and mulaw plugins to 0.9, fixed the negotiation as
well.
2005-05-06 Christian Schaller <uraeus@gnome.org>
 
* ext/alsa: removed plugins that are now in gst-plugins-base
......
......@@ -43,7 +43,7 @@ static void gst_alawdec_class_init (GstALawDecClass * klass);
static void gst_alawdec_base_init (GstALawDecClass * klass);
static void gst_alawdec_init (GstALawDec * alawdec);
static void gst_alawdec_chain (GstPad * pad, GstData * _data);
static GstFlowReturn gst_alawdec_chain (GstPad * pad, GstBuffer * buffer);
static GstElementClass *parent_class = NULL;
......@@ -74,78 +74,92 @@ alaw_to_s16 (guint8 a_val)
static GstCaps *
alawdec_getcaps (GstPad * pad)
{
GstALawDec *alawdec = GST_ALAWDEC (gst_pad_get_parent (pad));
GstALawDec *alawdec;
GstPad *otherpad;
GstCaps *base_caps, *othercaps;
GstStructure *structure;
const GValue *rate, *chans;
alawdec = GST_ALAWDEC (GST_PAD_PARENT (pad));
/* we can do what our template says */
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
if (pad == alawdec->sinkpad) {
otherpad = alawdec->srcpad;
base_caps = gst_caps_new_simple ("audio/x-alaw", NULL);
} else {
otherpad = alawdec->sinkpad;
base_caps = gst_caps_new_simple ("audio/x-raw-int",
"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
}
othercaps = gst_pad_get_allowed_caps (otherpad);
/* Not fully correct, but usually, all structures in a caps have
* the same samplerate and channels range. */
structure = gst_caps_get_structure (othercaps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
return gst_caps_new_empty ();
/* Set the samplerate/channels on the to-be-returned caps */
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", rate);
gst_structure_set_value (structure, "channels", chans);
gst_caps_free (othercaps);
/* now intersect rate and channels from peer caps */
othercaps = gst_pad_peer_get_caps (otherpad);
if (othercaps) {
GstStructure *structure;
const GValue *orate, *ochans;
const GValue *rate, *chans;
GValue irate = { 0 }, ichans = {
0};
structure = gst_caps_get_structure (othercaps, 0);
orate = gst_structure_get_value (structure, "rate");
ochans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
goto done;
structure = gst_caps_get_structure (base_caps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
goto done;
gst_value_intersect (&irate, orate, rate);
gst_value_intersect (&ichans, ochans, chans);
/* Set the samplerate/channels on the to-be-returned caps */
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", &irate);
gst_structure_set_value (structure, "channels", &ichans);
gst_caps_unref (othercaps);
}
done:
return base_caps;
}
static GstPadLinkReturn
alawdec_link (GstPad * pad, const GstCaps * caps)
static gboolean
alawdec_setcaps (GstPad * pad, GstCaps * caps)
{
GstALawDec *alawdec = GST_ALAWDEC (gst_pad_get_parent (pad));
GstALawDec *alawdec;
GstPad *otherpad;
GstStructure *structure;
const GValue *rate, *chans;
GstCaps *base_caps;
GstPadLinkReturn link_return;
alawdec = GST_ALAWDEC (GST_PAD_PARENT (pad));
/* take rate and channels */
structure = gst_caps_get_structure (caps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
return GST_PAD_LINK_REFUSED;
return FALSE;
if (pad == alawdec->srcpad) {
otherpad = alawdec->sinkpad;
base_caps = gst_caps_new_simple ("audio/x-alaw", NULL);
} else {
otherpad = alawdec->srcpad;
base_caps = 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, NULL);
}
/* fill in values for otherpad */
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (otherpad));
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", rate);
gst_structure_set_value (structure, "channels", chans);
link_return = gst_pad_try_set_caps (otherpad, base_caps);
/* and set on otherpad */
gst_pad_set_caps (otherpad, base_caps);
gst_caps_free (base_caps);
gst_caps_unref (base_caps);
return link_return;
return TRUE;
}
GType
......@@ -199,47 +213,41 @@ static void
gst_alawdec_init (GstALawDec * alawdec)
{
alawdec->sinkpad = gst_pad_new_from_template (alawdec_sink_template, "sink");
gst_pad_set_link_function (alawdec->sinkpad, alawdec_link);
gst_pad_set_setcaps_function (alawdec->sinkpad, alawdec_setcaps);
gst_pad_set_getcaps_function (alawdec->sinkpad, alawdec_getcaps);
gst_pad_set_chain_function (alawdec->sinkpad, gst_alawdec_chain);
gst_element_add_pad (GST_ELEMENT (alawdec), alawdec->sinkpad);
alawdec->srcpad = gst_pad_new_from_template (alawdec_src_template, "src");
gst_pad_set_link_function (alawdec->srcpad, alawdec_link);
gst_pad_set_setcaps_function (alawdec->srcpad, alawdec_setcaps);
gst_pad_set_getcaps_function (alawdec->srcpad, alawdec_getcaps);
gst_element_add_pad (GST_ELEMENT (alawdec), alawdec->srcpad);
}
static void
gst_alawdec_chain (GstPad * pad, GstData * _data)
static GstFlowReturn
gst_alawdec_chain (GstPad * pad, GstBuffer * buffer)
{
GstBuffer *buf = GST_BUFFER (_data);
GstALawDec *alawdec;
gint16 *linear_data;
guint8 *alaw_data;
GstBuffer *outbuf;
gint i;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
alawdec = GST_ALAWDEC (GST_OBJECT_PARENT (pad));
g_return_if_fail (alawdec != NULL);
g_return_if_fail (GST_IS_ALAWDEC (alawdec));
alaw_data = (guint8 *) GST_BUFFER_DATA (buf);
outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) * 2);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
alaw_data = (guint8 *) GST_BUFFER_DATA (buffer);
outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buffer) * 2);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (alawdec->srcpad));
linear_data = (gint16 *) GST_BUFFER_DATA (outbuf);
for (i = 0; i < GST_BUFFER_SIZE (buf); i++) {
for (i = 0; i < GST_BUFFER_SIZE (buffer); i++) {
*linear_data = alaw_to_s16 (*alaw_data);
linear_data++;
alaw_data++;
}
gst_buffer_unref (buf);
gst_pad_push (alawdec->srcpad, GST_DATA (outbuf));
gst_buffer_unref (buffer);
return gst_pad_push (alawdec->srcpad, outbuf);
}
......@@ -43,7 +43,7 @@ static void gst_alawenc_class_init (GstALawEncClass * klass);
static void gst_alawenc_base_init (GstALawEncClass * klass);
static void gst_alawenc_init (GstALawEnc * alawenc);
static void gst_alawenc_chain (GstPad * pad, GstData * _data);
static GstFlowReturn gst_alawenc_chain (GstPad * pad, GstBuffer * buffer);
/*
* s16_to_alaw() - Convert a 16-bit linear PCM value to 8-bit A-law
......@@ -117,77 +117,89 @@ static GstElementClass *parent_class = NULL;
static GstCaps *
alawenc_getcaps (GstPad * pad)
{
GstALawEnc *alawenc = GST_ALAWENC (gst_pad_get_parent (pad));
GstALawEnc *alawenc;
GstPad *otherpad;
GstCaps *base_caps, *othercaps;
GstCaps *base_caps, *othercaps, *result;
GstStructure *structure;
const GValue *rate, *chans;
alawenc = GST_ALAWENC (GST_PAD_PARENT (pad));
/* we can do what our template says */
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
if (pad == alawenc->srcpad) {
otherpad = alawenc->sinkpad;
base_caps = gst_caps_new_simple ("audio/x-alaw", NULL);
} else {
otherpad = alawenc->srcpad;
base_caps = 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, NULL);
}
othercaps = gst_pad_get_allowed_caps (otherpad);
/* Not fully correct, but usually, all structures in a caps have
* the same samplerate and channels range. */
structure = gst_caps_get_structure (othercaps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
return gst_caps_new_empty ();
/* Set the samplerate/channels on the to-be-returned caps */
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", rate);
gst_structure_set_value (structure, "channels", chans);
gst_caps_free (othercaps);
othercaps = gst_pad_peer_get_caps (otherpad);
if (othercaps) {
GstStructure *structure;
const GValue *orate, *ochans;
const GValue *rate, *chans;
GValue irate = { 0 }, ichans = {
0};
structure = gst_caps_get_structure (othercaps, 0);
orate = gst_structure_get_value (structure, "rate");
ochans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
goto done;
structure = gst_caps_get_structure (base_caps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
goto done;
gst_value_intersect (&irate, orate, rate);
gst_value_intersect (&ichans, ochans, chans);
/* Set the samplerate/channels on the to-be-returned caps */
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", &irate);
gst_structure_set_value (structure, "channels", &ichans);
gst_caps_unref (othercaps);
}
done:
return base_caps;
}
static GstPadLinkReturn
alawenc_link (GstPad * pad, const GstCaps * caps)
static gboolean
alawenc_setcaps (GstPad * pad, GstCaps * caps)
{
GstALawEnc *alawenc = GST_ALAWENC (gst_pad_get_parent (pad));
GstALawEnc *alawenc;
GstPad *otherpad;
GstStructure *structure;
const GValue *rate, *chans;
GstCaps *base_caps;
GstPadLinkReturn link_return;
alawenc = GST_ALAWENC (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
return GST_PAD_LINK_REFUSED;
return FALSE;
if (pad == alawenc->sinkpad) {
otherpad = alawenc->srcpad;
base_caps = gst_caps_new_simple ("audio/x-alaw", NULL);
} else {
otherpad = alawenc->sinkpad;
base_caps = 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, NULL);
}
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (otherpad));
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", rate);
gst_structure_set_value (structure, "channels", chans);
link_return = gst_pad_try_set_caps (otherpad, base_caps);
gst_pad_set_caps (otherpad, base_caps);
gst_caps_free (base_caps);
gst_caps_unref (base_caps);
return link_return;
return TRUE;
}
GType
......@@ -241,39 +253,33 @@ static void
gst_alawenc_init (GstALawEnc * alawenc)
{
alawenc->sinkpad = gst_pad_new_from_template (alawenc_sink_template, "sink");
gst_pad_set_link_function (alawenc->sinkpad, alawenc_link);
gst_pad_set_setcaps_function (alawenc->sinkpad, alawenc_setcaps);
gst_pad_set_getcaps_function (alawenc->sinkpad, alawenc_getcaps);
gst_pad_set_chain_function (alawenc->sinkpad, gst_alawenc_chain);
gst_element_add_pad (GST_ELEMENT (alawenc), alawenc->sinkpad);
alawenc->srcpad = gst_pad_new_from_template (alawenc_src_template, "src");
gst_pad_set_link_function (alawenc->srcpad, alawenc_link);
gst_pad_set_setcaps_function (alawenc->srcpad, alawenc_setcaps);
gst_pad_set_getcaps_function (alawenc->srcpad, alawenc_getcaps);
gst_element_add_pad (GST_ELEMENT (alawenc), alawenc->srcpad);
}
static void
gst_alawenc_chain (GstPad * pad, GstData * _data)
static GstFlowReturn
gst_alawenc_chain (GstPad * pad, GstBuffer * buffer)
{
GstBuffer *buf = GST_BUFFER (_data);
GstALawEnc *alawenc;
gint16 *linear_data;
guint8 *alaw_data;
GstBuffer *outbuf;
gint i;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
alawenc = GST_ALAWENC (GST_OBJECT_PARENT (pad));
g_return_if_fail (alawenc != NULL);
g_return_if_fail (GST_IS_ALAWENC (alawenc));
linear_data = (gint16 *) GST_BUFFER_DATA (buf);
outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) / 2);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
linear_data = (gint16 *) GST_BUFFER_DATA (buffer);
outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buffer) / 2);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (alawenc->srcpad));
alaw_data = (guint8 *) GST_BUFFER_DATA (outbuf);
for (i = 0; i < GST_BUFFER_SIZE (outbuf); i++) {
......@@ -282,6 +288,7 @@ gst_alawenc_chain (GstPad * pad, GstData * _data)
linear_data++;
}
gst_buffer_unref (buf);
gst_pad_push (alawenc->srcpad, GST_DATA (outbuf));
gst_buffer_unref (buffer);
return gst_pad_push (alawenc->srcpad, outbuf);
}
......@@ -42,7 +42,7 @@ static void gst_mulawdec_class_init (GstMuLawDecClass * klass);
static void gst_mulawdec_base_init (GstMuLawDecClass * klass);
static void gst_mulawdec_init (GstMuLawDec * mulawdec);
static void gst_mulawdec_chain (GstPad * pad, GstData * _data);
static GstFlowReturn gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer);
static GstElementClass *parent_class = NULL;
......@@ -51,80 +51,85 @@ static GstElementClass *parent_class = NULL;
static GstCaps *
mulawdec_getcaps (GstPad * pad)
{
GstMuLawDec *mulawdec = GST_MULAWDEC (gst_pad_get_parent (pad));
GstMuLawDec *mulawdec;
GstPad *otherpad;
GstCaps *base_caps, *othercaps;
GstStructure *structure;
const GValue *rate, *chans;
mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
if (pad == mulawdec->sinkpad) {
otherpad = mulawdec->srcpad;
base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
} else {
otherpad = mulawdec->sinkpad;
base_caps = gst_caps_new_simple ("audio/x-raw-int",
"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
"signed", G_TYPE_BOOLEAN, TRUE,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
}
othercaps = gst_pad_get_allowed_caps (otherpad);
/* Not fully correct, but usually, all structures in a caps have
* the same samplerate and channels range. */
structure = gst_caps_get_structure (othercaps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
return gst_caps_new_empty ();
/* Set the samplerate/channels on the to-be-returned caps */
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", rate);
gst_structure_set_value (structure, "channels", chans);
gst_caps_free (othercaps);
othercaps = gst_pad_peer_get_caps (otherpad);
if (othercaps) {
GstStructure *structure;
const GValue *orate, *ochans;
const GValue *rate, *chans;
GValue irate = { 0 }, ichans = {
0};
structure = gst_caps_get_structure (othercaps, 0);
orate = gst_structure_get_value (structure, "rate");
ochans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
goto done;
structure = gst_caps_get_structure (base_caps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
goto done;
gst_value_intersect (&irate, orate, rate);
gst_value_intersect (&ichans, ochans, chans);
/* Set the samplerate/channels on the to-be-returned caps */
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", &irate);
gst_structure_set_value (structure, "channels", &ichans);
gst_caps_unref (othercaps);
}
done:
return base_caps;
}
static GstPadLinkReturn
mulawdec_link (GstPad * pad, const GstCaps * caps)
static gboolean
mulawdec_setcaps (GstPad * pad, GstCaps * caps)
{
GstMuLawDec *mulawdec = GST_MULAWDEC (gst_pad_get_parent (pad));
GstMuLawDec *mulawdec;
GstPad *otherpad;
GstStructure *structure;
const GValue *rate, *chans;
GstCaps *base_caps;
GstPadLinkReturn link_return;
mulawdec = GST_MULAWDEC (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
rate = gst_structure_get_value (structure, "rate");
chans = gst_structure_get_value (structure, "channels");
if (!rate || !chans)
return GST_PAD_LINK_REFUSED;
return FALSE;
if (pad == mulawdec->srcpad) {
otherpad = mulawdec->sinkpad;
base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
} else {
otherpad = mulawdec->srcpad;
base_caps = 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, NULL);
}
base_caps = gst_caps_copy (gst_pad_get_pad_template_caps (otherpad));
structure = gst_caps_get_structure (base_caps, 0);
gst_structure_set_value (structure, "rate", rate);
gst_structure_set_value (structure, "channels", chans);
link_return = gst_pad_try_set_caps (otherpad, base_caps);
gst_caps_free (base_caps);
return link_return;
gst_pad_set_caps (otherpad, base_caps);
gst_caps_unref (base_caps);
return TRUE;
}
GType
......@@ -179,42 +184,37 @@ gst_mulawdec_init (GstMuLawDec * mulawdec)
{
mulawdec->sinkpad =
gst_pad_new_from_template (mulawdec_sink_template, "sink");
gst_pad_set_link_function (mulawdec->sinkpad, mulawdec_link);
gst_pad_set_setcaps_function (mulawdec->sinkpad, mulawdec_setcaps);
gst_pad_set_getcaps_function (mulawdec->sinkpad, mulawdec_getcaps);
gst_pad_set_chain_function (mulawdec->sinkpad, gst_mulawdec_chain);
gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->sinkpad);
mulawdec->srcpad = gst_pad_new_from_template (mulawdec_src_template, "src");
gst_pad_set_link_function (mulawdec->srcpad, mulawdec_link);
gst_pad_set_setcaps_function (mulawdec->srcpad, mulawdec_setcaps);
gst_pad_set_getcaps_function (mulawdec->srcpad, mulawdec_getcaps);
gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->srcpad);
}
static void
gst_mulawdec_chain (GstPad * pad, GstData * _data)
static GstFlowReturn
gst_mulawdec_chain (GstPad * pad, GstBuffer * buffer)
{
GstBuffer *buf = GST_BUFFER (_data);
GstMuLawDec *mulawdec;
gint16 *linear_data;
guint8 *mulaw_data;
GstBuffer *outbuf;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
mulawdec = GST_MULAWDEC (GST_OBJECT_PARENT (pad));
g_return_if_fail (mulawdec != NULL);
g_return_if_fail (GST_IS_MULAWDEC (mulawdec));
mulaw_data = (guint8 *) GST_BUFFER_DATA (buf);
outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) * 2);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
mulaw_data = (guint8 *) GST_BUFFER_DATA (buffer);
outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buffer) * 2);
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (mulawdec->srcpad));
linear_data = (gint16 *) GST_BUFFER_DATA (outbuf);
mulaw_decode (mulaw_data, linear_data, GST_BUFFER_SIZE (buf));
mulaw_decode (mulaw_data, linear_data, GST_BUFFER_SIZE (buffer));
gst_buffer_unref (buffer);
gst_buffer_unref (buf);
gst_pad_push (mulawdec->srcpad, GST_DATA (outbuf));
return gst_pad_push (mulawdec->srcpad, outbuf);
}
......@@ -42,7 +42,7 @@ static void gst_mulawenc_class_init (GstMuLawEncClass * klass);
static void gst_mulawenc_base_init (GstMuLawEncClass * klass);
static void gst_mulawenc_init (GstMuLawEnc * mulawenc);
static void gst_mulawenc_chain (GstPad * pad, GstData * _data);
static GstFlowReturn gst_mulawenc_chain (GstPad * pad, GstBuffer * buffer);
static GstElementClass *parent_class = NULL;
......@@ -51,77 +51,85 @@ static GstElementClass *parent_class = NULL;
static GstCaps *
mulawenc_getcaps (GstPad * pad)
{
GstMuLawEnc *mulawenc = GST_MULAWENC (gst_pad_get_parent (pad));
GstMuLawEnc *mulawenc;
GstPad *otherpad;