static void
clear_mheaders (GstRtpJ2KDepay * rtpj2kdepay)
{
guint i;
for (i = 0; i < 8; i++)
store_mheader (rtpj2kdepay, i, NULL);
}
static GstFlowReturn
gst_rtp_j2k_depay_flush_pu (GstRTPBaseDepayload * depayload)
{
GstRtpJ2KDepay *rtpj2kdepay;
GstBuffer *mheader;
guint avail, MHF, mh_id;
rtpj2kdepay = GST_RTP_J2K_DEPAY (depayload);
/* take all available buffers */
avail = gst_adapter_available (rtpj2kdepay->pu_adapter);
if (avail == 0)
goto done;
MHF = rtpj2kdepay->pu_MHF;
mh_id = rtpj2kdepay->last_mh_id;
GST_DEBUG_OBJECT (rtpj2kdepay, "flushing PU of size %u", avail);
if (MHF == 0) {
GList *packets, *walk;
packets = gst_adapter_take_list (rtpj2kdepay->pu_adapter, avail);
/* append packets */
for (walk = packets; walk; walk = g_list_next (walk)) {
GstBuffer *buf = GST_BUFFER_CAST (walk->data);
GST_DEBUG_OBJECT (rtpj2kdepay,
"append pu packet of size %" G_GSIZE_FORMAT,
gst_buffer_get_size (buf));
gst_adapter_push (rtpj2kdepay->t_adapter, buf);
}
g_list_free (packets);
} else {
/* we have a header */
GST_DEBUG_OBJECT (rtpj2kdepay, "keeping header %u", mh_id);
/* we managed to see the start and end of the header, take all from
* adapter and keep in header */
mheader = gst_adapter_take_buffer (rtpj2kdepay->pu_adapter, avail);
store_mheader (rtpj2kdepay, mh_id, mheader);
}
done:
rtpj2kdepay->have_sync = FALSE;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_rtp_j2k_depay_flush_frame (GstBaseRTPDepayload * depayload)
{
GstRtpJ2KDepay *rtpj2kdepay;
guint8 end[2];
guint8 *data;
guint avail;
GstFlowReturn ret = GST_FLOW_OK;
rtpj2kdepay = GST_RTP_J2K_DEPAY (depayload);
/* flush pending tile */
gst_rtp_j2k_depay_flush_tile (depayload);
/* last buffer take all data out of the adapter */
avail = gst_adapter_available (rtpj2kdepay->f_adapter);
if (avail == 0)
goto done;
if (avail > 2) {
GstBuffer *outbuf;
/* take the last bytes of the JPEG 2000 data to see if there is an EOC
* marker */
gst_adapter_copy (rtpj2kdepay->f_adapter, end, avail - 2, 2);
if (end[0] != 0xff && end[1] != 0xd9) {
GST_DEBUG_OBJECT (rtpj2kdepay, "no EOC marker, adding one");
/* no EOI marker, add one */
outbuf = gst_buffer_new_and_alloc (2);
data = GST_BUFFER_DATA (outbuf);
data[0] = 0xff;
data[1] = 0xd9;
gst_adapter_push (rtpj2kdepay->f_adapter, outbuf);
avail += 2;
}
if (rtpj2kdepay->buffer_list) {
GList *list;
GstBufferList *buflist;
GstBufferListIterator *it;
GST_DEBUG_OBJECT (rtpj2kdepay, "pushing buffer list of %u bytes", avail);
list = gst_adapter_take_list (rtpj2kdepay->f_adapter, avail);
buflist = gst_buffer_list_new ();
it = gst_buffer_list_iterate (buflist);
gst_buffer_list_iterator_add_group (it);
gst_buffer_list_iterator_add_list (it, list);
gst_buffer_list_iterator_free (it);
ret = gst_base_rtp_depayload_push_list (depayload, buflist);
} else {
GST_DEBUG_OBJECT (rtpj2kdepay, "pushing buffer of %u bytes", avail);
outbuf = gst_adapter_take_buffer (rtpj2kdepay->f_adapter, avail);
ret = gst_base_rtp_depayload_push (depayload, outbuf);
}
} else {
GST_WARNING_OBJECT (rtpj2kdepay, "empty packet");
gst_adapter_clear (rtpj2kdepay->f_adapter);
}
/* we accept any mh_id now */
rtpj2kdepay->last_mh_id = -1;
/* reset state */
rtpj2kdepay->next_frag = 0;
rtpj2kdepay->have_sync = FALSE;
done:
/* we can't keep headers with mh_id of 0 */
store_mheader (rtpj2kdepay, 0, NULL);
return ret;
}
static GstFlowReturn
gst_rtp_j2k_depay_flush_frame (GstRTPBaseDepayload * depayload)
{
GstRtpJ2KDepay *rtpj2kdepay;
guint8 end[2];
guint avail;
GstFlowReturn ret = GST_FLOW_OK;
rtpj2kdepay = GST_RTP_J2K_DEPAY (depayload);
/* flush pending tile */
gst_rtp_j2k_depay_flush_tile (depayload);
/* last buffer take all data out of the adapter */
avail = gst_adapter_available (rtpj2kdepay->f_adapter);
if (avail == 0)
goto done;
if (avail > 2) {
GstBuffer *outbuf;
/* take the last bytes of the JPEG 2000 data to see if there is an EOC
* marker */
gst_adapter_copy (rtpj2kdepay->f_adapter, end, avail - 2, 2);
if (end[0] != 0xff && end[1] != 0xd9) {
end[0] = 0xff;
end[1] = 0xd9;
GST_DEBUG_OBJECT (rtpj2kdepay, "no EOC marker, adding one");
/* no EOI marker, add one */
outbuf = gst_buffer_new_and_alloc (2);
gst_buffer_fill (outbuf, 0, end, 2);
gst_adapter_push (rtpj2kdepay->f_adapter, outbuf);
avail += 2;
}
GST_DEBUG_OBJECT (rtpj2kdepay, "pushing buffer of %u bytes", avail);
outbuf = gst_adapter_take_buffer (rtpj2kdepay->f_adapter, avail);
gst_rtp_drop_meta (GST_ELEMENT_CAST (depayload),
outbuf, g_quark_from_static_string (GST_META_TAG_VIDEO_STR));
ret = gst_rtp_base_depayload_push (depayload, outbuf);
} else {
GST_WARNING_OBJECT (rtpj2kdepay, "empty packet");
gst_adapter_clear (rtpj2kdepay->f_adapter);
}
/* we accept any mh_id now */
rtpj2kdepay->last_mh_id = -1;
/* reset state */
rtpj2kdepay->next_frag = 0;
rtpj2kdepay->have_sync = FALSE;
done:
/* we can't keep headers with mh_id of 0 */
store_mheader (rtpj2kdepay, 0, NULL);
return ret;
}
