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gst/law/: Fix capsnego in all four, remove the unused property functions and simplify the chain functions slightly. I...
Original commit message from CVS: * gst/law/alaw-decode.c: (alawdec_getcaps), (alawdec_link), (gst_alawdec_base_init), (gst_alawdec_class_init), (gst_alawdec_init), (gst_alawdec_chain): * gst/law/alaw-encode.c: (alawenc_getcaps), (alawenc_link), (gst_alawenc_base_init), (gst_alawenc_class_init), (gst_alawenc_init), (gst_alawenc_chain): * gst/law/mulaw-decode.c: (mulawdec_getcaps), (mulawdec_link), (gst_mulawdec_base_init), (gst_mulawdec_class_init), (gst_mulawdec_init), (gst_mulawdec_chain): * gst/law/mulaw-encode.c: (mulawenc_getcaps), (mulawenc_link), (gst_mulawenc_base_init), (gst_mulawenc_class_init), (gst_mulawenc_init), (gst_mulawenc_chain): Fix capsnego in all four, remove the unused property functions and simplify the chain functions slightly. I guess we could use macros or something similar for those, since the code is so similar, but I'm currently too lazy...
This commit is contained in:
Ronald S. Bultje
parent
d21f04ca6f
commit
920ad8773b
5 changed files with 314 additions and 315 deletions
19
ChangeLog
19
ChangeLog
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@ -1,3 +1,22 @@
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2004-03-25 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* gst/law/alaw-decode.c: (alawdec_getcaps), (alawdec_link),
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(gst_alawdec_base_init), (gst_alawdec_class_init),
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(gst_alawdec_init), (gst_alawdec_chain):
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* gst/law/alaw-encode.c: (alawenc_getcaps), (alawenc_link),
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(gst_alawenc_base_init), (gst_alawenc_class_init),
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(gst_alawenc_init), (gst_alawenc_chain):
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* gst/law/mulaw-decode.c: (mulawdec_getcaps), (mulawdec_link),
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(gst_mulawdec_base_init), (gst_mulawdec_class_init),
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(gst_mulawdec_init), (gst_mulawdec_chain):
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* gst/law/mulaw-encode.c: (mulawenc_getcaps), (mulawenc_link),
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(gst_mulawenc_base_init), (gst_mulawenc_class_init),
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(gst_mulawenc_init), (gst_mulawenc_chain):
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Fix capsnego in all four, remove the unused property functions and
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simplify the chain functions slightly. I guess we could use macros
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or something similar for those, since the code is so similar, but
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I'm currently too lazy...
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2004-03-24 David Schleef <ds@schleef.org>
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* sys/oss/gstosselement.c: (gst_osselement_sync_parms),
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@ -27,14 +27,6 @@
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extern GstPadTemplate *alawdec_src_template, *alawdec_sink_template;
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/* elementfactory information */
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static GstElementDetails alawdec_details = {
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"A Law to PCM conversion",
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"Codec/Decoder/Audio",
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"Convert 8bit A law to 16bit PCM",
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"Zaheer Merali <zaheer@bellworldwide.net>"
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};
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/* Stereo signals and args */
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enum
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{
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@ -51,14 +43,8 @@ static void gst_alawdec_class_init (GstALawDecClass * klass);
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static void gst_alawdec_base_init (GstALawDecClass * klass);
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static void gst_alawdec_init (GstALawDec * alawdec);
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static void gst_alawdec_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_alawdec_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_alawdec_chain (GstPad * pad, GstData * _data);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 }; */
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@ -85,31 +71,73 @@ alaw_to_s16 (guint8 a_val)
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return ((a_val & 0x80) ? t : -t);
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}
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static GstCaps *
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alawdec_getcaps (GstPad * pad)
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{
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GstALawDec *alawdec = GST_ALAWDEC (gst_pad_get_parent (pad));
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GstPad *otherpad;
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GstCaps *base_caps, *othercaps;
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GstStructure *structure;
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const GValue *rate, *chans;
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if (pad == alawdec->sinkpad) {
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otherpad = alawdec->srcpad;
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base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
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} else {
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otherpad = alawdec->sinkpad;
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base_caps = gst_caps_new_simple ("audio/x-raw-int",
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"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
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"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
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}
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othercaps = gst_pad_get_allowed_caps (otherpad);
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/* Not fully correct, but usually, all structures in a caps have
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* the same samplerate and channels range. */
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structure = gst_caps_get_structure (othercaps, 0);
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rate = gst_structure_get_value (structure, "rate");
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chans = gst_structure_get_value (structure, "channels");
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if (!rate || !chans)
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return gst_caps_new_empty ();
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/* Set the samplerate/channels on the to-be-returned caps */
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structure = gst_caps_get_structure (base_caps, 0);
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gst_structure_set_value (structure, "rate", rate);
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gst_structure_set_value (structure, "channels", chans);
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gst_caps_free (othercaps);
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return base_caps;
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}
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static GstPadLinkReturn
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alawdec_link (GstPad * pad, const GstCaps * caps)
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{
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GstCaps *tempcaps;
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gint rate, channels;
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GstALawDec *alawdec = GST_ALAWDEC (gst_pad_get_parent (pad));
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GstPad *otherpad;
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GstStructure *structure;
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gboolean ret;
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GstALawDec *alawdec = GST_ALAWDEC (GST_OBJECT_PARENT (pad));
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const GValue *rate, *chans;
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GstCaps *base_caps;
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structure = gst_caps_get_structure (caps, 0);
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ret = gst_structure_get_int (structure, "rate", &rate);
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ret &= gst_structure_get_int (structure, "channels", &channels);
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if (!ret)
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rate = gst_structure_get_value (structure, "rate");
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chans = gst_structure_get_value (structure, "channels");
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if (!rate || !chans)
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return GST_PAD_LINK_REFUSED;
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tempcaps = gst_caps_new_simple ("audio/x-raw-int",
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"depth", G_TYPE_INT, 16,
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"width", G_TYPE_INT, 16,
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"signed", G_TYPE_BOOLEAN, TRUE,
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"endianness", G_TYPE_INT, G_BYTE_ORDER,
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"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
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if (pad == alawdec->srcpad) {
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otherpad = alawdec->sinkpad;
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base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
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} else {
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otherpad = alawdec->srcpad;
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base_caps = gst_caps_new_simple ("audio/x-raw-int",
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"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
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"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
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}
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return gst_pad_try_set_caps (alawdec->srcpad, tempcaps);
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structure = gst_caps_get_structure (base_caps, 0);
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gst_structure_set_value (structure, "rate", rate);
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gst_structure_set_value (structure, "channels", chans);
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return gst_pad_try_set_caps (otherpad, base_caps);
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}
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GType
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@ -141,6 +169,12 @@ static void
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gst_alawdec_base_init (GstALawDecClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstElementDetails alawdec_details = {
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"A Law to PCM conversion",
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"Codec/Decoder/Audio",
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"Convert 8bit A law to 16bit PCM",
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"Zaheer Merali <zaheer@bellworldwide.net>"
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};
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gst_element_class_add_pad_template (element_class, alawdec_src_template);
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gst_element_class_add_pad_template (element_class, alawdec_sink_template);
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@ -150,27 +184,21 @@ gst_alawdec_base_init (GstALawDecClass * klass)
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static void
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gst_alawdec_class_init (GstALawDecClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gobject_class->set_property = gst_alawdec_set_property;
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gobject_class->get_property = gst_alawdec_get_property;
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}
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static void
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gst_alawdec_init (GstALawDec * alawdec)
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{
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alawdec->sinkpad = gst_pad_new_from_template (alawdec_sink_template, "sink");
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alawdec->srcpad = gst_pad_new_from_template (alawdec_src_template, "src");
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gst_pad_set_link_function (alawdec->sinkpad, alawdec_link);
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gst_element_add_pad (GST_ELEMENT (alawdec), alawdec->sinkpad);
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gst_pad_set_getcaps_function (alawdec->sinkpad, alawdec_getcaps);
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gst_pad_set_chain_function (alawdec->sinkpad, gst_alawdec_chain);
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gst_element_add_pad (GST_ELEMENT (alawdec), alawdec->sinkpad);
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alawdec->srcpad = gst_pad_new_from_template (alawdec_src_template, "src");
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gst_pad_set_link_function (alawdec->srcpad, alawdec_link);
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gst_pad_set_getcaps_function (alawdec->srcpad, alawdec_getcaps);
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gst_element_add_pad (GST_ELEMENT (alawdec), alawdec->srcpad);
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}
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@ -193,11 +221,11 @@ gst_alawdec_chain (GstPad * pad, GstData * _data)
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g_return_if_fail (GST_IS_ALAWDEC (alawdec));
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alaw_data = (guint8 *) GST_BUFFER_DATA (buf);
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outbuf = gst_buffer_new ();
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GST_BUFFER_DATA (outbuf) = (gchar *) g_new (gint16, GST_BUFFER_SIZE (buf));
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GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf) * 2;
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outbuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) * 2);
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GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
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GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
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linear_data = (gint16 *) GST_BUFFER_DATA (outbuf);
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for (i = 0; i < GST_BUFFER_SIZE (buf); i++) {
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*linear_data = alaw_to_s16 (*alaw_data);
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linear_data++;
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@ -207,36 +235,3 @@ gst_alawdec_chain (GstPad * pad, GstData * _data)
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gst_buffer_unref (buf);
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gst_pad_push (alawdec->srcpad, GST_DATA (outbuf));
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}
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static void
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gst_alawdec_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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{
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GstALawDec *alawdec;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_ALAWDEC (object));
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alawdec = GST_ALAWDEC (object);
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switch (prop_id) {
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default:
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break;
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}
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}
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static void
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gst_alawdec_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstALawDec *alawdec;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_ALAWDEC (object));
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alawdec = GST_ALAWDEC (object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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@ -27,14 +27,6 @@
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extern GstPadTemplate *alawenc_src_template, *alawenc_sink_template;
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/* elementfactory information */
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static GstElementDetails alawenc_details = {
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"PCM to A Law conversion",
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"Codec/Encoder/Audio",
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"Convert 16bit PCM to 8bit A law",
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"Zaheer Merali <zaheer@bellworldwide.net>"
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};
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/* Stereo signals and args */
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enum
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{
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@ -51,11 +43,6 @@ static void gst_alawenc_class_init (GstALawEncClass * klass);
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static void gst_alawenc_base_init (GstALawEncClass * klass);
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static void gst_alawenc_init (GstALawEnc * alawenc);
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static void gst_alawenc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_alawenc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_alawenc_chain (GstPad * pad, GstData * _data);
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/*
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@ -127,31 +114,73 @@ static GstElementClass *parent_class = NULL;
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/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 }; */
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static GstCaps *
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alawenc_getcaps (GstPad * pad)
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{
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GstALawEnc *alawenc = GST_ALAWENC (gst_pad_get_parent (pad));
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GstPad *otherpad;
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GstCaps *base_caps, *othercaps;
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GstStructure *structure;
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const GValue *rate, *chans;
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if (pad == alawenc->srcpad) {
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otherpad = alawenc->sinkpad;
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base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
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} else {
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otherpad = alawenc->srcpad;
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base_caps = gst_caps_new_simple ("audio/x-raw-int",
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"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
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"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
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}
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othercaps = gst_pad_get_allowed_caps (otherpad);
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/* Not fully correct, but usually, all structures in a caps have
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* the same samplerate and channels range. */
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structure = gst_caps_get_structure (othercaps, 0);
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rate = gst_structure_get_value (structure, "rate");
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chans = gst_structure_get_value (structure, "channels");
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if (!rate || !chans)
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return gst_caps_new_empty ();
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/* Set the samplerate/channels on the to-be-returned caps */
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structure = gst_caps_get_structure (base_caps, 0);
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gst_structure_set_value (structure, "rate", rate);
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gst_structure_set_value (structure, "channels", chans);
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gst_caps_free (othercaps);
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return base_caps;
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}
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static GstPadLinkReturn
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alawenc_link (GstPad * pad, const GstCaps * caps)
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{
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GstCaps *tempcaps;
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gint rate, channels;
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GstALawEnc *alawenc = GST_ALAWENC (gst_pad_get_parent (pad));
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GstPad *otherpad;
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GstStructure *structure;
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gboolean ret;
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GstALawEnc *alawenc = GST_ALAWENC (GST_OBJECT_PARENT (pad));
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const GValue *rate, *chans;
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GstCaps *base_caps;
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structure = gst_caps_get_structure (caps, 0);
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ret = gst_structure_get_int (structure, "rate", &rate);
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ret &= gst_structure_get_int (structure, "channels", &channels);
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if (!ret)
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rate = gst_structure_get_value (structure, "rate");
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chans = gst_structure_get_value (structure, "channels");
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if (!rate || !chans)
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return GST_PAD_LINK_REFUSED;
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tempcaps = gst_caps_new_simple ("audio/x-alaw",
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"depth", G_TYPE_INT, 8,
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"width", G_TYPE_INT, 8,
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"signed", G_TYPE_BOOLEAN, FALSE,
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"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
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if (pad == alawenc->sinkpad) {
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otherpad = alawenc->srcpad;
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base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
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} else {
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otherpad = alawenc->sinkpad;
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base_caps = gst_caps_new_simple ("audio/x-raw-int",
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"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
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"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
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}
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return gst_pad_try_set_caps (alawenc->srcpad, tempcaps);
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structure = gst_caps_get_structure (base_caps, 0);
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gst_structure_set_value (structure, "rate", rate);
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gst_structure_set_value (structure, "channels", chans);
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return gst_pad_try_set_caps (otherpad, base_caps);
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}
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GType
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@ -183,6 +212,12 @@ static void
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gst_alawenc_base_init (GstALawEncClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstElementDetails alawenc_details = {
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"PCM to A Law conversion",
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"Codec/Encoder/Audio",
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"Convert 16bit PCM to 8bit A law",
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"Zaheer Merali <zaheer@bellworldwide.net>"
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};
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gst_element_class_add_pad_template (element_class, alawenc_src_template);
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gst_element_class_add_pad_template (element_class, alawenc_sink_template);
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|
|
@ -192,27 +227,21 @@ gst_alawenc_base_init (GstALawEncClass * klass)
|
|||
static void
|
||||
gst_alawenc_class_init (GstALawEncClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstElementClass *gstelement_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gstelement_class = (GstElementClass *) klass;
|
||||
|
||||
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
|
||||
|
||||
gobject_class->set_property = gst_alawenc_set_property;
|
||||
gobject_class->get_property = gst_alawenc_get_property;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_alawenc_init (GstALawEnc * alawenc)
|
||||
{
|
||||
alawenc->sinkpad = gst_pad_new_from_template (alawenc_sink_template, "sink");
|
||||
alawenc->srcpad = gst_pad_new_from_template (alawenc_src_template, "src");
|
||||
gst_pad_set_link_function (alawenc->sinkpad, alawenc_link);
|
||||
|
||||
gst_element_add_pad (GST_ELEMENT (alawenc), alawenc->sinkpad);
|
||||
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_getcaps_function (alawenc->srcpad, alawenc_getcaps);
|
||||
gst_element_add_pad (GST_ELEMENT (alawenc), alawenc->srcpad);
|
||||
}
|
||||
|
||||
|
|
@ -235,51 +264,17 @@ gst_alawenc_chain (GstPad * pad, GstData * _data)
|
|||
g_return_if_fail (GST_IS_ALAWENC (alawenc));
|
||||
|
||||
linear_data = (gint16 *) GST_BUFFER_DATA (buf);
|
||||
outbuf = gst_buffer_new ();
|
||||
GST_BUFFER_DATA (outbuf) =
|
||||
(gchar *) g_new (guint8, GST_BUFFER_SIZE (buf) / 2);
|
||||
GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf) / 2;
|
||||
|
||||
|
||||
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 (outbuf);
|
||||
|
||||
for (i = 0; i < GST_BUFFER_SIZE (outbuf); i++) {
|
||||
*alaw_data = s16_to_alaw (*linear_data);
|
||||
alaw_data++;
|
||||
linear_data++;
|
||||
}
|
||||
|
||||
gst_buffer_unref (buf);
|
||||
gst_pad_push (alawenc->srcpad, GST_DATA (outbuf));
|
||||
}
|
||||
|
||||
static void
|
||||
gst_alawenc_set_property (GObject * object, guint prop_id, const GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstALawEnc *alawenc;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_ALAWENC (object));
|
||||
alawenc = GST_ALAWENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_alawenc_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstALawEnc *alawenc;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_ALAWENC (object));
|
||||
alawenc = GST_ALAWENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,14 +26,6 @@
|
|||
|
||||
extern GstPadTemplate *mulawdec_src_template, *mulawdec_sink_template;
|
||||
|
||||
/* elementfactory information */
|
||||
static GstElementDetails mulawdec_details = {
|
||||
"Mu Law to PCM conversion",
|
||||
"Codec/Decoder/Audio",
|
||||
"Convert 8bit mu law to 16bit PCM",
|
||||
"Zaheer Merali <zaheer@bellworldwide.net>"
|
||||
};
|
||||
|
||||
/* Stereo signals and args */
|
||||
enum
|
||||
{
|
||||
|
|
@ -50,43 +42,79 @@ 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_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_mulawdec_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
|
||||
static void gst_mulawdec_chain (GstPad * pad, GstData * _data);
|
||||
|
||||
|
||||
static GstElementClass *parent_class = NULL;
|
||||
|
||||
/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 };*/
|
||||
|
||||
static GstCaps *
|
||||
mulawdec_getcaps (GstPad * pad)
|
||||
{
|
||||
GstMuLawDec *mulawdec = GST_MULAWDEC (gst_pad_get_parent (pad));
|
||||
GstPad *otherpad;
|
||||
GstCaps *base_caps, *othercaps;
|
||||
GstStructure *structure;
|
||||
const GValue *rate, *chans;
|
||||
|
||||
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,
|
||||
"endianness", G_TYPE_INT, G_BYTE_ORDER, 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);
|
||||
|
||||
return base_caps;
|
||||
}
|
||||
|
||||
static GstPadLinkReturn
|
||||
mulawdec_link (GstPad * pad, const GstCaps * caps)
|
||||
{
|
||||
GstCaps *tempcaps;
|
||||
gint rate, channels;
|
||||
GstMuLawDec *mulawdec = GST_MULAWDEC (gst_pad_get_parent (pad));
|
||||
GstPad *otherpad;
|
||||
GstStructure *structure;
|
||||
gboolean ret;
|
||||
|
||||
GstMuLawDec *mulawdec = GST_MULAWDEC (GST_OBJECT_PARENT (pad));
|
||||
const GValue *rate, *chans;
|
||||
GstCaps *base_caps;
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
ret = gst_structure_get_int (structure, "rate", &rate);
|
||||
ret = gst_structure_get_int (structure, "channels", &channels);
|
||||
if (!ret)
|
||||
rate = gst_structure_get_value (structure, "rate");
|
||||
chans = gst_structure_get_value (structure, "channels");
|
||||
if (!rate || !chans)
|
||||
return GST_PAD_LINK_REFUSED;
|
||||
|
||||
tempcaps = gst_caps_new_simple ("audio/x-raw-int",
|
||||
"depth", G_TYPE_INT, 16,
|
||||
"width", G_TYPE_INT, 16,
|
||||
"signed", G_TYPE_BOOLEAN, TRUE,
|
||||
"endianness", G_TYPE_INT, G_BYTE_ORDER,
|
||||
"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
|
||||
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, NULL);
|
||||
}
|
||||
|
||||
return gst_pad_try_set_caps (mulawdec->srcpad, tempcaps);
|
||||
structure = gst_caps_get_structure (base_caps, 0);
|
||||
gst_structure_set_value (structure, "rate", rate);
|
||||
gst_structure_set_value (structure, "channels", chans);
|
||||
|
||||
return gst_pad_try_set_caps (otherpad, base_caps);
|
||||
}
|
||||
|
||||
GType
|
||||
|
|
@ -118,6 +146,12 @@ static void
|
|||
gst_mulawdec_base_init (GstMuLawDecClass * klass)
|
||||
{
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
GstElementDetails mulawdec_details = {
|
||||
"Mu Law to PCM conversion",
|
||||
"Codec/Decoder/Audio",
|
||||
"Convert 8bit mu law to 16bit PCM",
|
||||
"Zaheer Merali <zaheer@bellworldwide.net>"
|
||||
};
|
||||
|
||||
gst_element_class_add_pad_template (element_class, mulawdec_src_template);
|
||||
gst_element_class_add_pad_template (element_class, mulawdec_sink_template);
|
||||
|
|
@ -127,16 +161,7 @@ gst_mulawdec_base_init (GstMuLawDecClass * klass)
|
|||
static void
|
||||
gst_mulawdec_class_init (GstMuLawDecClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstElementClass *gstelement_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gstelement_class = (GstElementClass *) klass;
|
||||
|
||||
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
|
||||
|
||||
gobject_class->set_property = gst_mulawdec_set_property;
|
||||
gobject_class->get_property = gst_mulawdec_get_property;
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -144,11 +169,14 @@ gst_mulawdec_init (GstMuLawDec * mulawdec)
|
|||
{
|
||||
mulawdec->sinkpad =
|
||||
gst_pad_new_from_template (mulawdec_sink_template, "sink");
|
||||
mulawdec->srcpad = gst_pad_new_from_template (mulawdec_src_template, "src");
|
||||
gst_pad_set_link_function (mulawdec->sinkpad, mulawdec_link);
|
||||
|
||||
gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->sinkpad);
|
||||
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_getcaps_function (mulawdec->srcpad, mulawdec_getcaps);
|
||||
gst_element_add_pad (GST_ELEMENT (mulawdec), mulawdec->srcpad);
|
||||
}
|
||||
|
||||
|
|
@ -170,46 +198,13 @@ gst_mulawdec_chain (GstPad * pad, GstData * _data)
|
|||
g_return_if_fail (GST_IS_MULAWDEC (mulawdec));
|
||||
|
||||
mulaw_data = (guint8 *) GST_BUFFER_DATA (buf);
|
||||
outbuf = gst_buffer_new ();
|
||||
GST_BUFFER_DATA (outbuf) = (gchar *) g_new (gint16, GST_BUFFER_SIZE (buf));
|
||||
GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf) * 2;
|
||||
|
||||
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 (outbuf);
|
||||
|
||||
mulaw_decode (mulaw_data, linear_data, GST_BUFFER_SIZE (buf));
|
||||
|
||||
gst_buffer_unref (buf);
|
||||
gst_pad_push (mulawdec->srcpad, GST_DATA (outbuf));
|
||||
}
|
||||
|
||||
static void
|
||||
gst_mulawdec_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstMuLawDec *mulawdec;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_MULAWDEC (object));
|
||||
mulawdec = GST_MULAWDEC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_mulawdec_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstMuLawDec *mulawdec;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_MULAWDEC (object));
|
||||
mulawdec = GST_MULAWDEC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,14 +26,6 @@
|
|||
|
||||
extern GstPadTemplate *mulawenc_src_template, *mulawenc_sink_template;
|
||||
|
||||
/* elementfactory information */
|
||||
static GstElementDetails mulawenc_details = {
|
||||
"PCM to Mu Law conversion",
|
||||
"Codec/Encoder/Audio",
|
||||
"Convert 16bit PCM to 8bit mu law",
|
||||
"Zaheer Merali <zaheer@bellworldwide.net>"
|
||||
};
|
||||
|
||||
/* Stereo signals and args */
|
||||
enum
|
||||
{
|
||||
|
|
@ -50,41 +42,79 @@ 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_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_mulawenc_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
|
||||
static void gst_mulawenc_chain (GstPad * pad, GstData * _data);
|
||||
|
||||
|
||||
static GstElementClass *parent_class = NULL;
|
||||
|
||||
/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 }; */
|
||||
|
||||
static GstCaps *
|
||||
mulawenc_getcaps (GstPad * pad)
|
||||
{
|
||||
GstMuLawEnc *mulawenc = GST_MULAWENC (gst_pad_get_parent (pad));
|
||||
GstPad *otherpad;
|
||||
GstCaps *base_caps, *othercaps;
|
||||
GstStructure *structure;
|
||||
const GValue *rate, *chans;
|
||||
|
||||
if (pad == mulawenc->srcpad) {
|
||||
otherpad = mulawenc->sinkpad;
|
||||
base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
|
||||
} else {
|
||||
otherpad = mulawenc->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, 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);
|
||||
|
||||
return base_caps;
|
||||
}
|
||||
|
||||
static GstPadLinkReturn
|
||||
mulawenc_link (GstPad * pad, const GstCaps * caps)
|
||||
{
|
||||
GstCaps *tempcaps;
|
||||
gint rate, channels;
|
||||
GstMuLawEnc *mulawenc = GST_MULAWENC (gst_pad_get_parent (pad));
|
||||
GstPad *otherpad;
|
||||
GstStructure *structure;
|
||||
gboolean ret;
|
||||
|
||||
GstMuLawEnc *mulawenc = GST_MULAWENC (GST_OBJECT_PARENT (pad));
|
||||
const GValue *rate, *chans;
|
||||
GstCaps *base_caps;
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
ret = gst_structure_get_int (structure, "rate", &rate);
|
||||
ret = gst_structure_get_int (structure, "channels", &channels);
|
||||
if (!ret)
|
||||
rate = gst_structure_get_value (structure, "rate");
|
||||
chans = gst_structure_get_value (structure, "channels");
|
||||
if (!rate || !chans)
|
||||
return GST_PAD_LINK_REFUSED;
|
||||
|
||||
tempcaps = gst_caps_new_simple ("audio/x-mulaw",
|
||||
"depth", G_TYPE_INT, 8,
|
||||
"width", G_TYPE_INT, 8,
|
||||
"signed", G_TYPE_BOOLEAN, FALSE,
|
||||
"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, NULL);
|
||||
if (pad == mulawenc->sinkpad) {
|
||||
otherpad = mulawenc->srcpad;
|
||||
base_caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
|
||||
} else {
|
||||
otherpad = mulawenc->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, NULL);
|
||||
}
|
||||
|
||||
return gst_pad_try_set_caps (mulawenc->srcpad, tempcaps);
|
||||
structure = gst_caps_get_structure (base_caps, 0);
|
||||
gst_structure_set_value (structure, "rate", rate);
|
||||
gst_structure_set_value (structure, "channels", chans);
|
||||
|
||||
return gst_pad_try_set_caps (otherpad, base_caps);
|
||||
}
|
||||
|
||||
GType
|
||||
|
|
@ -116,6 +146,12 @@ static void
|
|||
gst_mulawenc_base_init (GstMuLawEncClass * klass)
|
||||
{
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
GstElementDetails mulawenc_details = {
|
||||
"PCM to Mu Law conversion",
|
||||
"Codec/Encoder/Audio",
|
||||
"Convert 16bit PCM to 8bit mu law",
|
||||
"Zaheer Merali <zaheer@bellworldwide.net>"
|
||||
};
|
||||
|
||||
gst_element_class_add_pad_template (element_class, mulawenc_src_template);
|
||||
gst_element_class_add_pad_template (element_class, mulawenc_sink_template);
|
||||
|
|
@ -125,16 +161,7 @@ gst_mulawenc_base_init (GstMuLawEncClass * klass)
|
|||
static void
|
||||
gst_mulawenc_class_init (GstMuLawEncClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstElementClass *gstelement_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gstelement_class = (GstElementClass *) klass;
|
||||
|
||||
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
|
||||
|
||||
gobject_class->set_property = gst_mulawenc_set_property;
|
||||
gobject_class->get_property = gst_mulawenc_get_property;
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -142,11 +169,14 @@ gst_mulawenc_init (GstMuLawEnc * mulawenc)
|
|||
{
|
||||
mulawenc->sinkpad =
|
||||
gst_pad_new_from_template (mulawenc_sink_template, "sink");
|
||||
mulawenc->srcpad = gst_pad_new_from_template (mulawenc_src_template, "src");
|
||||
gst_pad_set_link_function (mulawenc->sinkpad, mulawenc_link);
|
||||
|
||||
gst_element_add_pad (GST_ELEMENT (mulawenc), mulawenc->sinkpad);
|
||||
gst_pad_set_getcaps_function (mulawenc->sinkpad, mulawenc_getcaps);
|
||||
gst_pad_set_chain_function (mulawenc->sinkpad, gst_mulawenc_chain);
|
||||
gst_element_add_pad (GST_ELEMENT (mulawenc), mulawenc->sinkpad);
|
||||
|
||||
mulawenc->srcpad = gst_pad_new_from_template (mulawenc_src_template, "src");
|
||||
gst_pad_set_link_function (mulawenc->srcpad, mulawenc_link);
|
||||
gst_pad_set_getcaps_function (mulawenc->srcpad, mulawenc_getcaps);
|
||||
gst_element_add_pad (GST_ELEMENT (mulawenc), mulawenc->srcpad);
|
||||
}
|
||||
|
||||
|
|
@ -168,47 +198,12 @@ gst_mulawenc_chain (GstPad * pad, GstData * _data)
|
|||
g_return_if_fail (GST_IS_MULAWENC (mulawenc));
|
||||
|
||||
linear_data = (gint16 *) GST_BUFFER_DATA (buf);
|
||||
outbuf = gst_buffer_new ();
|
||||
GST_BUFFER_DATA (outbuf) =
|
||||
(gchar *) g_new (gint16, GST_BUFFER_SIZE (buf) / 4);
|
||||
GST_BUFFER_SIZE (outbuf) = GST_BUFFER_SIZE (buf) / 2;
|
||||
|
||||
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 = (gint8 *) GST_BUFFER_DATA (outbuf);
|
||||
mulaw_encode (linear_data, mulaw_data, GST_BUFFER_SIZE (outbuf));
|
||||
|
||||
gst_buffer_unref (buf);
|
||||
gst_pad_push (mulawenc->srcpad, GST_DATA (outbuf));
|
||||
}
|
||||
|
||||
static void
|
||||
gst_mulawenc_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstMuLawEnc *mulawenc;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_MULAWENC (object));
|
||||
mulawenc = GST_MULAWENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_mulawenc_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstMuLawEnc *mulawenc;
|
||||
|
||||
/* it's not null if we got it, but it might not be ours */
|
||||
g_return_if_fail (GST_IS_MULAWENC (object));
|
||||
mulawenc = GST_MULAWENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue