static GstFlowReturn
gst_mim_enc_chain (GstPad * pad, GstObject * parent, GstBuffer * in)
{
GstMimEnc *mimenc = GST_MIM_ENC (parent);
GstBuffer *out = NULL;
GstMapInfo in_map;
GstMapInfo out_map;
GstFlowReturn res = GST_FLOW_OK;
gboolean keyframe;
gint buffer_size;
GST_OBJECT_LOCK (mimenc);
gst_buffer_map (in, &in_map, GST_MAP_READ);
out = gst_buffer_new_and_alloc (mimenc->buffer_size + TCP_HEADER_SIZE);
gst_buffer_map (out, &out_map, GST_MAP_READWRITE);
GST_BUFFER_TIMESTAMP (out) =
gst_segment_to_running_time (&mimenc->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (in));
mimenc->last_buffer = GST_BUFFER_TIMESTAMP (out);
buffer_size = mimenc->buffer_size;
keyframe = (mimenc->frames % MAX_INTERFRAMES) == 0 ? TRUE : FALSE;
if (!mimic_encode_frame (mimenc->enc, in_map.data,
out_map.data + TCP_HEADER_SIZE, &buffer_size, keyframe)) {
gst_buffer_unmap (in, &in_map);
gst_buffer_unmap (out, &out_map);
gst_buffer_unref (out);
GST_ELEMENT_ERROR (mimenc, STREAM, ENCODE, (NULL),
("mimic_encode_frame error"));
res = GST_FLOW_ERROR;
goto out_unlock;
}
gst_buffer_unmap (in, &in_map);
if (!keyframe)
GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DELTA_UNIT);
GST_LOG_OBJECT (mimenc, "incoming buf size %d, encoded size %d",
gst_buffer_get_size (in), gst_buffer_get_size (out));
++mimenc->frames;
/* now let's create that tcp header */
gst_mim_enc_create_tcp_header (mimenc, out_map.data, buffer_size,
GST_BUFFER_TIMESTAMP (out), keyframe, FALSE);
gst_buffer_unmap (out, &out_map);
gst_buffer_resize (out, 0, buffer_size + TCP_HEADER_SIZE);
GST_OBJECT_UNLOCK (mimenc);
res = gst_pad_push (mimenc->srcpad, out);
out:
gst_buffer_unref (in);
return res;
out_unlock:
GST_OBJECT_UNLOCK (mimenc);
goto out;
}
static GstFlowReturn
gst_mimenc_chain (GstPad * pad, GstBuffer * in)
{
GstMimEnc *mimenc;
GstBuffer *out_buf = NULL, *buf = NULL;
guchar *data;
gint buffer_size;
GstBuffer *header = NULL;
GstFlowReturn res = GST_FLOW_OK;
GstEvent *event = NULL;
gboolean keyframe;
g_return_val_if_fail (GST_IS_PAD (pad), GST_FLOW_ERROR);
mimenc = GST_MIMENC (gst_pad_get_parent (pad));
g_return_val_if_fail (GST_IS_MIMENC (mimenc), GST_FLOW_ERROR);
GST_OBJECT_LOCK (mimenc);
if (mimenc->segment.format == GST_FORMAT_UNDEFINED) {
GST_WARNING_OBJECT (mimenc, "No new-segment received,"
" initializing segment with time 0..-1");
gst_segment_init (&mimenc->segment, GST_FORMAT_TIME);
gst_segment_set_newsegment (&mimenc->segment,
FALSE, 1.0, GST_FORMAT_TIME, 0, -1, 0);
}
if (mimenc->enc == NULL) {
mimenc->enc = mimic_open ();
if (mimenc->enc == NULL) {
GST_WARNING_OBJECT (mimenc, "mimic_open error\n");
res = GST_FLOW_ERROR;
goto out_unlock;
}
if (!mimic_encoder_init (mimenc->enc, mimenc->res)) {
GST_WARNING_OBJECT (mimenc, "mimic_encoder_init error\n");
mimic_close (mimenc->enc);
mimenc->enc = NULL;
res = GST_FLOW_ERROR;
goto out_unlock;
}
if (!mimic_get_property (mimenc->enc, "buffer_size", &mimenc->buffer_size)) {
GST_WARNING_OBJECT (mimenc, "mimic_get_property('buffer_size') error\n");
mimic_close (mimenc->enc);
mimenc->enc = NULL;
res = GST_FLOW_ERROR;
goto out_unlock;
}
}
buf = in;
data = GST_BUFFER_DATA (buf);
out_buf = gst_buffer_new_and_alloc (mimenc->buffer_size);
GST_BUFFER_TIMESTAMP (out_buf) =
gst_segment_to_running_time (&mimenc->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (buf));
mimenc->last_buffer = GST_BUFFER_TIMESTAMP (out_buf);
buffer_size = mimenc->buffer_size;
keyframe = (mimenc->frames % MAX_INTERFRAMES) == 0 ? TRUE : FALSE;
if (!mimic_encode_frame (mimenc->enc, data, GST_BUFFER_DATA (out_buf),
&buffer_size, keyframe)) {
GST_WARNING_OBJECT (mimenc, "mimic_encode_frame error\n");
gst_buffer_unref (out_buf);
gst_buffer_unref (buf);
res = GST_FLOW_ERROR;
goto out_unlock;
}
GST_BUFFER_SIZE (out_buf) = buffer_size;
GST_DEBUG_OBJECT (mimenc, "incoming buf size %d, encoded size %d",
GST_BUFFER_SIZE (buf), GST_BUFFER_SIZE (out_buf));
++mimenc->frames;
// now let's create that tcp header
header = gst_mimenc_create_tcp_header (mimenc, buffer_size,
GST_BUFFER_TIMESTAMP (out_buf), keyframe, FALSE);
if (!header) {
gst_buffer_unref (out_buf);
GST_DEBUG_OBJECT (mimenc, "header not created succesfully");
res = GST_FLOW_ERROR;
goto out_unlock;
}
if (mimenc->need_newsegment) {
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, -1, 0);
mimenc->need_newsegment = FALSE;
}
GST_OBJECT_UNLOCK (mimenc);
if (event) {
if (!gst_pad_push_event (mimenc->srcpad, event))
GST_WARNING_OBJECT (mimenc, "Failed to push NEWSEGMENT event");
}
res = gst_pad_push (mimenc->srcpad, header);
if (res != GST_FLOW_OK) {
gst_buffer_unref (out_buf);
goto out;
}
res = gst_pad_push (mimenc->srcpad, out_buf);
out:
if (buf)
gst_buffer_unref (buf);
gst_object_unref (mimenc);
return res;
out_unlock:
GST_OBJECT_UNLOCK (mimenc);
goto out;
}
