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[MOVED FROM GST-P-FARSIGHT] Port sirendec to Gstelement
20080704201744-3e2dc-99bf7b86e42da363d8c826449d84b43751572d5e.gz
This commit is contained in:
Olivier Crete
Edward Hervey
parent
84a188ff73
commit
bda906038d
3 changed files with 66 additions and 171 deletions
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@ -70,20 +70,11 @@ enum
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};
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static GstFlowReturn
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gst_siren_dec_chain (GstPad *pad, GstBuffer *buf);
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static void gst_siren_dec_dispose (GObject *object);
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static GstFlowReturn gst_siren_dec_transform (GstBaseTransform *trans,
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GstBuffer *inbuf, GstBuffer *outbuf);
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static gboolean gst_siren_dec_transform_size (GstBaseTransform *trans,
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GstPadDirection direction, GstCaps *caps, guint size,
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GstCaps *othercaps, guint *othersize);
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static GstCaps * gst_siren_dec_transform_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps);
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static gboolean gst_siren_dec_start (GstBaseTransform *trans);
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static gboolean gst_siren_dec_stop (GstBaseTransform *trans);
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static void
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_do_init (GType type)
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{
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@ -91,8 +82,8 @@ _do_init (GType type)
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(sirendec_debug, "sirendec", 0, "sirendec");
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}
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GST_BOILERPLATE_FULL (GstSirenDec, gst_siren_dec, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, _do_init);
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GST_BOILERPLATE_FULL (GstSirenDec, gst_siren_dec, GstElement,
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GST_TYPE_ELEMENT, _do_init);
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static void
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gst_siren_dec_base_init (gpointer klass)
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@ -111,28 +102,15 @@ static void
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gst_siren_dec_class_init (GstSirenDecClass *klass)
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{
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GObjectClass *gobject_class;
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GstBaseTransformClass *gstbasetransform_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstbasetransform_class = (GstBaseTransformClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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GST_DEBUG ("Initializing Class");
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gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_siren_dec_dispose);
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gstbasetransform_class->transform =
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GST_DEBUG_FUNCPTR (gst_siren_dec_transform);
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gstbasetransform_class->transform_caps =
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GST_DEBUG_FUNCPTR (gst_siren_dec_transform_caps);
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gstbasetransform_class->transform_size =
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GST_DEBUG_FUNCPTR (gst_siren_dec_transform_size);
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gstbasetransform_class->start =
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GST_DEBUG_FUNCPTR (gst_siren_dec_start);
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gstbasetransform_class->stop =
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GST_DEBUG_FUNCPTR (gst_siren_dec_stop);
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parent_class = g_type_class_peek_parent (klass);
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GST_DEBUG ("Class Init done");
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}
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@ -141,8 +119,18 @@ gst_siren_dec_init (GstSirenDec *dec, GstSirenDecClass *klass)
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{
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GST_DEBUG_OBJECT (dec, "Initializing");
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dec->decoder = NULL;
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dec->adapter = gst_adapter_new ();
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dec->decoder = Siren7_NewDecoder (16000);;
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dec->sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
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dec->srcpad = gst_pad_new_from_static_template (&srctemplate, "src");
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gst_pad_set_chain_function (dec->sinkpad,
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GST_DEBUG_FUNCPTR (gst_siren_dec_chain));
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gst_element_add_pad (GST_ELEMENT (dec), dec->sinkpad);
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gst_element_add_pad (GST_ELEMENT (dec), dec->srcpad);
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dec->srccaps = gst_static_pad_template_get_caps (&srctemplate);
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GST_DEBUG_OBJECT (dec, "Init done");
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}
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@ -158,128 +146,26 @@ gst_siren_dec_dispose (GObject *object)
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Siren7_CloseDecoder (dec->decoder);
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dec->decoder = NULL;
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}
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if (dec->adapter) {
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g_object_unref (dec->adapter);
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dec->adapter = NULL;
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if (dec->srccaps)
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{
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gst_caps_unref (dec->srccaps);
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dec->srccaps = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static gboolean
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gst_siren_dec_start (GstBaseTransform *trans)
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{
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GstSirenDec *dec = GST_SIREN_DEC (trans);
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GST_DEBUG ("Start");
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if (dec->decoder) {
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Siren7_CloseDecoder (dec->decoder);
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dec->decoder = NULL;
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}
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dec->decoder = Siren7_NewDecoder (16000);
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gst_adapter_clear (dec->adapter);
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return dec->decoder != NULL;
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}
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static gboolean
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gst_siren_dec_stop (GstBaseTransform *trans)
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{
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GstSirenDec *dec = GST_SIREN_DEC (trans);
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GST_DEBUG ("Stop");
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if (dec->decoder) {
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Siren7_CloseDecoder (dec->decoder);
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dec->decoder = NULL;
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}
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gst_adapter_clear (dec->adapter);
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return TRUE;
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}
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static gboolean gst_siren_dec_transform_size (GstBaseTransform *trans,
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GstPadDirection direction, GstCaps *caps, guint size,
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GstCaps *othercaps, guint *othersize)
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{
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GstSirenDec *dec = GST_SIREN_DEC (trans);
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GstStructure *structure = NULL;
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const gchar *in_name = NULL;
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const gchar *out_name = NULL;
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gboolean decoding;
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if (caps != NULL && othercaps != NULL) {
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structure = gst_caps_get_structure (caps, 0);
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in_name = gst_structure_get_name (structure);
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structure = gst_caps_get_structure (othercaps, 0);
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out_name = gst_structure_get_name (structure);
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}
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GST_DEBUG ("Transform size from caps '%s' to '%s'", in_name, out_name);
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if (in_name == NULL || out_name == NULL) {
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if (direction == GST_PAD_SINK)
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decoding = TRUE;
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else
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decoding = FALSE;
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} else if (strcmp (in_name, "audio/x-raw-int") == 0 &&
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strcmp (out_name, "audio/x-siren") == 0 ) {
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decoding = FALSE;
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} else if (strcmp (in_name, "audio/x-siren") == 0 &&
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strcmp (out_name, "audio/x-raw-int") == 0 ) {
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decoding = TRUE;
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} else {
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GST_DEBUG ("Unknown in/out caps");
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return FALSE;
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}
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if (decoding) {
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size += gst_adapter_available (dec->adapter);
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*othersize = size * 16;
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*othersize -= *othersize % 640;
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if ((size * 16) % 640 > 0)
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*othersize+= 640;
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} else {
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*othersize = size / 16;
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*othersize -= *othersize % 40;
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if ((size / 16) % 40 > 0)
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*othersize+= 40;
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}
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GST_DEBUG ("Transform size %d to %d", size, *othersize);
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return TRUE;
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}
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static GstCaps * gst_siren_dec_transform_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps)
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{
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GstCaps *othercaps = NULL;
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GST_DEBUG ("Transforming caps");
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if (direction == GST_PAD_SINK) {
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return gst_static_pad_template_get_caps (&srctemplate);
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} else if (direction == GST_PAD_SRC) {
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return gst_static_pad_template_get_caps (&sinktemplate);
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}
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GST_DEBUG ("Transform caps");
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return othercaps;
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}
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static GstFlowReturn
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gst_siren_dec_transform (GstBaseTransform *trans, GstBuffer *inbuf,
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GstBuffer *outbuf)
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gst_siren_dec_chain (GstPad *pad, GstBuffer *buf)
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{
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GstSirenDec *dec = GST_SIREN_DEC (trans);
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GstSirenDec *dec = GST_SIREN_DEC (gst_pad_get_parent_element (pad));
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GstFlowReturn ret = GST_FLOW_OK;
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guint8 *data = NULL;
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gint offset = 0;
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GstBuffer *decoded = NULL;
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guint inoffset = 0;
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guint outoffset = 0;
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gint decode_ret = 0;
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guint size = 0;
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GST_LOG_OBJECT (dec, "Transform");
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@ -287,45 +173,57 @@ gst_siren_dec_transform (GstBaseTransform *trans, GstBuffer *inbuf,
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GST_DEBUG ("Siren decoder not set");
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return GST_FLOW_WRONG_STATE;
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}
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if (dec->adapter == NULL) {
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GST_DEBUG ("Adapter not set");
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return GST_FLOW_UNEXPECTED;
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GST_LOG_OBJECT (dec,"Received buffer of size %d", GST_BUFFER_SIZE (buf));
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size = GST_BUFFER_SIZE (buf) * 16;
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size -= size % 640;
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if (size == 0)
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{
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GST_LOG_OBJECT (dec, "Got buffer smaller than framesize: %u < 40",
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GST_BUFFER_SIZE (buf));
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return GST_FLOW_OK;
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}
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gst_buffer_ref (inbuf);
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gst_adapter_push (dec->adapter, inbuf);
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if (size % 40 != 0)
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GST_LOG_OBJECT (dec, "Got buffer with size not a multiple for frame size,"
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" ignoring last %u bytes", GST_BUFFER_SIZE (buf) % 40);
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GST_LOG_OBJECT (dec,"Received buffer of size %d with adapter of size : %d",
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GST_BUFFER_SIZE (inbuf), gst_adapter_available (dec->adapter));
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ret = gst_pad_alloc_buffer_and_set_caps (dec->srcpad,
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GST_BUFFER_OFFSET (buf) * 16, size, dec->srccaps, &decoded);
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if (ret != GST_FLOW_OK)
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return ret;
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data = GST_BUFFER_DATA (outbuf);
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offset = 0;
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while((gst_adapter_available (dec->adapter) >= 40) &&
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(offset + 640 <= GST_BUFFER_SIZE (outbuf)) &&
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while((inoffset + 40 <= GST_BUFFER_SIZE (buf)) &&
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ret == GST_FLOW_OK) {
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GST_DEBUG ("Decoding frame");
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decode_ret = Siren7_DecodeFrame (dec->decoder,
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(guint8 *) gst_adapter_peek (dec->adapter, 40),
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data + offset);
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GST_BUFFER_DATA (buf) + inoffset,
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GST_BUFFER_DATA (decoded) + outoffset);
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if (decode_ret != 0) {
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GST_ERROR_OBJECT (dec, "Siren7_DecodeFrame returned %d", decode_ret);
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ret = GST_FLOW_ERROR;
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}
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gst_adapter_flush (dec->adapter, 40);
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offset += 640;
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inoffset += 40;
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outoffset += 640;
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}
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GST_LOG_OBJECT (dec, "Finished decoding : %d", offset);
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if (offset != GST_BUFFER_SIZE (outbuf)) {
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GST_LOG_OBJECT (dec, "Finished decoding : %d", outoffset);
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if (outoffset != GST_BUFFER_SIZE (decoded)) {
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GST_ERROR_OBJECT (dec,
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"didn't decode enough : offfset (%d) != BUFFER_SIZE (%d)",
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offset, GST_BUFFER_SIZE (outbuf));
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outoffset, GST_BUFFER_SIZE (decoded));
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return GST_FLOW_ERROR;
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}
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ret = gst_pad_push (dec->srcpad, decoded);
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gst_object_unref (dec);
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return ret;
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}
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@ -24,7 +24,6 @@
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#define __GST_SIREN_DEC_H__
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/base/gstadapter.h>
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#include "siren7.h"
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@ -51,22 +50,19 @@ typedef struct _GstSirenDecPrivate GstSirenDecPrivate;
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struct _GstSirenDec
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{
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GstBaseTransform parent;
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GstElement parent;
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SirenDecoder decoder;
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GstAdapter *adapter;
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/*< private > */
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gpointer _gst_reserved[GST_PADDING];
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GstPad *sinkpad;
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GstPad *srcpad;
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GstCaps *srccaps;
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};
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struct _GstSirenDecClass
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{
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GstBaseTransformClass parent_class;
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/*< private > */
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gpointer _gst_reserved[GST_PADDING];
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GstElementClass parent_class;
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};
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GType gst_siren_dec_get_type (void);
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@ -153,6 +153,7 @@ gst_siren_enc_dispose (GObject *object)
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Siren7_CloseEncoder (enc->encoder);
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enc->encoder = NULL;
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}
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if (enc->adapter) {
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g_object_unref (enc->adapter);
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enc->adapter = NULL;
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