static GstFlowReturn
gst_kate_tiger_kate_chain (GstPad * pad, GstBuffer * buf)
{
GstKateTiger *tiger = GST_KATE_TIGER (gst_pad_get_parent (pad));
const kate_event *ev = NULL;
GstFlowReturn rflow = GST_FLOW_OK;
g_mutex_lock (tiger->mutex);
GST_LOG_OBJECT (tiger, "Got kate buffer");
rflow =
gst_kate_util_decoder_base_chain_kate_packet (&tiger->decoder,
GST_ELEMENT_CAST (tiger), pad, buf, tiger->srcpad, &ev);
if (G_LIKELY (rflow == GST_FLOW_OK)) {
if (ev) {
int ret = tiger_renderer_add_event (tiger->tr, ev->ki, ev);
GST_INFO_OBJECT (tiger, "adding event for %p from %f to %f: %p, \"%s\"",
ev->ki, ev->start_time, ev->end_time, ev->bitmap, ev->text);
if (G_UNLIKELY (ret < 0)) {
GST_WARNING_OBJECT (tiger,
"failed to add Kate event to Tiger renderer: %d", ret);
}
}
}
gst_object_unref (tiger);
gst_buffer_unref (buf);
g_mutex_unlock (tiger->mutex);
return rflow;
}
static GstFlowReturn
gst_kate_dec_chain (GstPad * pad, GstBuffer * buf)
{
GstKateDec *kd = GST_KATE_DEC (gst_pad_get_parent (pad));
const kate_event *ev = NULL;
GstFlowReturn rflow = GST_FLOW_OK;
if (!gst_kate_util_decoder_base_update_segment (&kd->decoder,
GST_ELEMENT_CAST (kd), buf)) {
GST_WARNING_OBJECT (kd, "Out of segment!");
goto not_in_seg;
}
rflow =
gst_kate_util_decoder_base_chain_kate_packet (&kd->decoder,
GST_ELEMENT_CAST (kd), pad, buf, kd->srcpad, kd->srcpad, &kd->src_caps,
&ev);
if (G_UNLIKELY (rflow != GST_FLOW_OK)) {
gst_object_unref (kd);
gst_buffer_unref (buf);
return rflow;
}
if (ev) {
gchar *escaped;
GstBuffer *buffer;
size_t len;
gboolean plain = TRUE;
if (kd->remove_markup && ev->text_markup_type != kate_markup_none) {
size_t len0 = ev->len + 1;
escaped = g_strdup (ev->text);
if (escaped) {
kate_text_remove_markup (ev->text_encoding, escaped, &len0);
}
plain = TRUE;
} else if (ev->text_markup_type == kate_markup_none) {
/* no pango markup yet, escape text */
/* TODO: actually do the pango thing */
escaped = g_strdup (ev->text);
plain = TRUE;
} else {
escaped = g_strdup (ev->text);
plain = FALSE;
}
if (G_LIKELY (escaped)) {
len = strlen (escaped);
if (len > 0) {
GST_DEBUG_OBJECT (kd, "kate event: %s, escaped %s", ev->text, escaped);
buffer = gst_buffer_new_and_alloc (len + 1);
if (G_LIKELY (buffer)) {
const char *mime = plain ? "text/plain" : "text/x-pango-markup";
GstCaps *caps = gst_caps_new_empty_simple (mime);
gst_caps_unref (caps);
/* allocate and copy the NULs, but don't include them in passed size */
gst_buffer_fill (buffer, 0, escaped, len + 1);
gst_buffer_resize (buffer, 0, len);
GST_BUFFER_TIMESTAMP (buffer) = ev->start_time * GST_SECOND;
GST_BUFFER_DURATION (buffer) =
(ev->end_time - ev->start_time) * GST_SECOND;
rflow = gst_pad_push (kd->srcpad, buffer);
if (rflow == GST_FLOW_NOT_LINKED) {
GST_DEBUG_OBJECT (kd, "source pad not linked, ignored");
} else if (rflow != GST_FLOW_OK) {
GST_WARNING_OBJECT (kd, "failed to push buffer: %s",
gst_flow_get_name (rflow));
}
} else {
GST_ELEMENT_ERROR (kd, STREAM, DECODE, (NULL),
("Failed to create buffer"));
rflow = GST_FLOW_ERROR;
}
} else {
GST_WARNING_OBJECT (kd, "Empty string, nothing to do");
rflow = GST_FLOW_OK;
}
g_free (escaped);
} else {
GST_ELEMENT_ERROR (kd, STREAM, DECODE, (NULL),
("Failed to allocate string"));
rflow = GST_FLOW_ERROR;
}
// if there's a background paletted bitmap, construct a DVD SPU for it
if (ev->bitmap && ev->palette) {
GstBuffer *buffer = gst_kate_spu_encode_spu (kd, ev);
if (buffer) {
GST_BUFFER_TIMESTAMP (buffer) = ev->start_time * GST_SECOND;
GST_BUFFER_DURATION (buffer) =
(ev->end_time - ev->start_time) * GST_SECOND;
rflow = gst_pad_push (kd->srcpad, buffer);
if (rflow == GST_FLOW_NOT_LINKED) {
GST_DEBUG_OBJECT (kd, "source pad not linked, ignored");
} else if (rflow != GST_FLOW_OK) {
GST_WARNING_OBJECT (kd, "failed to push buffer: %s",
gst_flow_get_name (rflow));
}
} else {
GST_ELEMENT_ERROR (kd, STREAM, DECODE, (NULL),
("failed to create SPU from paletted bitmap"));
rflow = GST_FLOW_ERROR;
}
}
}
not_in_seg:
gst_object_unref (kd);
gst_buffer_unref (buf);
return rflow;
}
