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mpegaudioparse: Provide SEEKING query handling.

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Since SEEK event handling might perform some conversion
from TIME to BYTES, do not let upstream fool application
into (TIME) seeking not being possible.
This commit is contained in:
Mark Nauwelaerts 2009-02-27 13:41:58 +01:00
parent d61498d842
commit d950699d2e
1 changed files with 40 additions and 0 deletions
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40
gst/mpegaudioparse/gstmpegaudioparse.c
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@ -1914,6 +1914,8 @@ mp3parse_src_query (GstPad * pad, GstQuery * query)
g_return_val_if_fail (mp3parse != NULL, FALSE);
GST_LOG_OBJECT (pad, "%s query", GST_QUERY_TYPE_NAME (query));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
gst_query_parse_position (query, &format, NULL);
@ -1959,6 +1961,44 @@ mp3parse_src_query (GstPad * pad, GstQuery * query)
res = TRUE;
}
break;
case GST_QUERY_SEEKING:
gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
/* does upstream handle ? */
if ((peer = gst_pad_get_peer (mp3parse->sinkpad)) != NULL) {
res = gst_pad_query (peer, query);
gst_object_unref (peer);
}
/* we may be able to help if in TIME */
if (format == GST_FORMAT_TIME) {
gboolean seekable;
gst_query_parse_seeking (query, &format, &seekable, NULL, NULL);
/* already OK if upstream takes care */
if (res && !seekable) {
gint64 pos;
seekable = TRUE;
if (!mp3parse_total_time (mp3parse, &total) || total == -1) {
seekable = FALSE;
} else if (!mp3parse_time_to_bytepos (mp3parse, 0, &pos)) {
seekable = FALSE;
} else {
GstQuery *q;
q = gst_query_new_seeking (GST_FORMAT_BYTES);
if (!gst_pad_peer_query (mp3parse->sinkpad, q)) {
seekable = FALSE;
} else {
gst_query_parse_seeking (q, &format, &seekable, NULL, NULL);
}
gst_query_unref (q);
}
gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0, total);
res = TRUE;
}
}
break;
default:
res = gst_pad_query_default (pad, query);
break;