/* chain function
* this function does the actual processing
*/
static GstFlowReturn
gst_kate_enc_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstKateEnc *ke = GST_KATE_ENC (parent);
GstFlowReturn rflow;
GST_DEBUG_OBJECT (ke, "got packet, %" G_GSIZE_FORMAT " bytes",
gst_buffer_get_size (buf));
/* first push headers if we haven't done that yet */
rflow = gst_kate_enc_flush_headers (ke);
if (G_LIKELY (rflow == GST_FLOW_OK)) {
/* flush any packet we had waiting */
rflow = gst_kate_enc_flush_waiting (ke, GST_BUFFER_TIMESTAMP (buf));
if (G_LIKELY (rflow == GST_FLOW_OK)) {
if (ke->format == GST_KATE_FORMAT_SPU) {
/* encode a kate_bitmap */
rflow = gst_kate_enc_chain_spu (ke, buf);
} else {
/* encode text */
rflow = gst_kate_enc_chain_text (ke, buf);
}
}
}
gst_buffer_unref (buf);
return rflow;
}
/* chain function
* this function does the actual processing
*/
static GstFlowReturn
gst_kate_enc_chain (GstPad * pad, GstBuffer * buf)
{
GstKateEnc *ke = GST_KATE_ENC (gst_pad_get_parent (pad));
GstFlowReturn rflow = GST_FLOW_OK;
GstCaps *caps;
const gchar *mime_type = NULL;
GST_DEBUG_OBJECT (ke, "got packet, %u bytes", GST_BUFFER_SIZE (buf));
/* get the type of the data we're being sent */
caps = GST_PAD_CAPS (pad);
if (G_UNLIKELY (caps == NULL)) {
GST_WARNING_OBJECT (ke, "No input caps set");
rflow = GST_FLOW_NOT_NEGOTIATED;
} else {
const GstStructure *structure = gst_caps_get_structure (caps, 0);
if (structure)
mime_type = gst_structure_get_name (structure);
if (mime_type) {
GST_LOG_OBJECT (ke, "Packet has MIME type %s", mime_type);
/* first push headers if we haven't done that yet */
rflow = gst_kate_enc_flush_headers (ke);
if (G_LIKELY (rflow == GST_FLOW_OK)) {
/* flush any packet we had waiting */
rflow = gst_kate_enc_flush_waiting (ke, GST_BUFFER_TIMESTAMP (buf));
if (G_LIKELY (rflow == GST_FLOW_OK)) {
if (!strcmp (mime_type, GST_KATE_SPU_MIME_TYPE)) {
/* encode a kate_bitmap */
rflow = gst_kate_enc_chain_spu (ke, buf);
} else {
/* encode text */
rflow = gst_kate_enc_chain_text (ke, buf, mime_type);
}
}
}
} else {
GST_WARNING_OBJECT (ke, "Packet has no MIME type, ignored");
}
}
gst_buffer_unref (buf);
gst_object_unref (ke);
GST_LOG_OBJECT (ke, "Leaving chain function");
return rflow;
}