/* read comment and post as tag */
static inline gboolean
gst_jpeg_parse_com (GstJpegParse * parse, GstByteReader * reader)
{
const guint8 *data = NULL;
guint16 size = 0;
gchar *comment;
if (!gst_byte_reader_get_uint16_be (reader, &size))
return FALSE;
size -= 2;
if (!gst_byte_reader_get_data (reader, size, &data))
return FALSE;
comment = get_utf8_from_data (data, size);
if (comment) {
GstTagList *taglist = get_tag_list (parse);
gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_COMMENT, comment, NULL);
GST_DEBUG_OBJECT (parse, "collected tags: %" GST_PTR_FORMAT, taglist);
g_free (comment);
}
return TRUE;
}
/* ***************************************************************
discard, from the num occurrences which are in occ_list, those
which are not enclosed in a pair of opening/closing tag
return the number of survived occurrences
*************************************************************** */
int get_enclosed_occ(occ_data *occ_list, int num_occ, char *tag, bwi_out *s)
{
int *get_tag_list(char *, bwi_out *, int *);
int i, t, status, occ_accepted, tags_seen, num_tags, *tag_list;
if(Verbose>1)
fprintf(stderr,"%d occurrences to be filtered\n",num_occ);
/* ---- the tag list has a very special format (see below) ---- */
tag_list = get_tag_list(tag,s,&num_tags);
if(num_tags==0)
num_occ = 0;
else {
assert(tag_list!=NULL);
/* ---- find which occ are enclosed between two tags --- */
occ_accepted = tags_seen = 0;
status = 0;
for(i=0;i<num_occ;i++) {
for( ;tags_seen < num_tags; ) {
t=tag_list[tags_seen];
if((t>>1) > occ_list[i].pos) break;
else {
status = t & 1; //get current status in the lsb
tags_seen++;
}
}
if(status)
occ_list[occ_accepted++] = occ_list[i];
}
free(tag_list);
num_occ = occ_accepted; // update number of words
} // num_tags==0
static gboolean
gst_jpeg_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstJpegParse *parse;
gboolean res = TRUE;
parse = GST_JPEG_PARSE (gst_pad_get_parent (pad));
GST_DEBUG_OBJECT (parse, "event : %s", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
parse->priv->next_ts = GST_CLOCK_TIME_NONE;
parse->priv->duration = GST_CLOCK_TIME_NONE;
parse->priv->last_offset = 0;
parse->priv->last_entropy_len = 0;
parse->priv->last_resync = FALSE;
gst_adapter_clear (parse->priv->adapter);
break;
case GST_EVENT_EOS:{
/* Push the remaining data, even though it's incomplete */
guint available = gst_adapter_available (parse->priv->adapter);
if (available > 0)
gst_jpeg_parse_push_buffer (parse, available);
res = gst_pad_push_event (parse->priv->srcpad, event);
break;
}
case GST_EVENT_NEWSEGMENT:
/* Discard any data in the adapter. There should have been an EOS before
* to flush it. */
gst_adapter_clear (parse->priv->adapter);
res = gst_pad_push_event (parse->priv->srcpad, event);
parse->priv->new_segment = TRUE;
break;
case GST_EVENT_TAG:{
if (!parse->priv->new_segment)
res = gst_pad_event_default (pad, event);
else {
GstTagList *taglist = NULL;
gst_event_parse_tag (event, &taglist);
/* Hold on to the tags till the srcpad caps are definitely set */
gst_tag_list_insert (get_tag_list (parse), taglist,
GST_TAG_MERGE_REPLACE);
GST_DEBUG ("collected tags: %" GST_PTR_FORMAT, parse->priv->tags);
gst_event_unref (event);
}
break;
}
default:
res = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (parse);
return res;
}
static int tag_cmplt(BW *bw)
{
if (!tag_word_list)
tag_word_list = get_tag_list();
if (!tag_word_list) {
ttputc(7);
return 0;
}
return simple_cmplt(bw,tag_word_list);
}
