From 00ec95f3d249dd87705318b23c110e14035bf7f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <slomo@circular-chaos.org>
Date: Sat, 15 Dec 2007 13:10:00 +0000
Subject: gst/videoparse/gstvideoparse.c: Improve duration query by first
 asking upstream and if it can't handle the query try ...

Original commit message from CVS:
* gst/videoparse/gstvideoparse.c: (gst_video_parse_sink_event),
(gst_video_parse_src_event), (gst_video_parse_src_query):
Improve duration query by first asking upstream and if it can't handle
the query try to get the duration in bytes from upstream and convert.
For seeks, try if upstream handles this already first and do our
conversion to byte format only if it doesn't and if we get a
newsegment event in time format keep it and only do our conversions
if the event has another format.
---
 gst/videoparse/gstvideoparse.c | 96 ++++++++++++++++++++++++++++++------------
 1 file changed, 70 insertions(+), 26 deletions(-)

(limited to 'gst/videoparse')

diff --git a/gst/videoparse/gstvideoparse.c b/gst/videoparse/gstvideoparse.c
index 032b57cb..36c59189 100644
--- a/gst/videoparse/gstvideoparse.c
+++ b/gst/videoparse/gstvideoparse.c
@@ -697,22 +697,34 @@ gst_video_parse_sink_event (GstPad * pad, GstEvent * event)
       gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
           &start, &stop, &time);
 
-      ret =
-          gst_video_parse_convert (vp, format, start, GST_FORMAT_TIME, &start);
-      ret &= gst_video_parse_convert (vp, format, time, GST_FORMAT_TIME, &time);
-      ret &= gst_video_parse_convert (vp, format, stop, GST_FORMAT_TIME, &stop);
-      if (!ret) {
-        GST_ERROR_OBJECT (vp,
-            "Failed converting to GST_FORMAT_TIME format (%d)", format);
-        break;
-      }
+      if (format == GST_FORMAT_TIME) {
+        ret = gst_pad_push_event (vp->srcpad, event);
+        gst_segment_set_newsegment_full (&vp->segment, update, rate, arate,
+            GST_FORMAT_TIME, start, stop, time);
+      } else {
 
-      gst_segment_set_newsegment_full (&vp->segment, update, rate, arate,
-          GST_FORMAT_TIME, start, stop, time);
-      event = gst_event_new_new_segment (FALSE, vp->segment.rate,
-          GST_FORMAT_TIME, start, stop, time);
+        gst_event_unref (event);
 
-      ret = gst_pad_push_event (vp->srcpad, event);
+        ret =
+            gst_video_parse_convert (vp, format, start, GST_FORMAT_TIME,
+            &start);
+        ret &=
+            gst_video_parse_convert (vp, format, time, GST_FORMAT_TIME, &time);
+        ret &=
+            gst_video_parse_convert (vp, format, stop, GST_FORMAT_TIME, &stop);
+        if (!ret) {
+          GST_ERROR_OBJECT (vp,
+              "Failed converting to GST_FORMAT_TIME format (%d)", format);
+          break;
+        }
+
+        gst_segment_set_newsegment_full (&vp->segment, update, rate, arate,
+            GST_FORMAT_TIME, start, stop, time);
+        event = gst_event_new_new_segment (FALSE, vp->segment.rate,
+            GST_FORMAT_TIME, start, stop, time);
+
+        ret = gst_pad_push_event (vp->srcpad, event);
+      }
       break;
     }
     default:
@@ -742,12 +754,15 @@ gst_video_parse_src_event (GstPad * pad, GstEvent * event)
       gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
           &stop_type, &stop);
 
-      /* We only handle TIME and DEFAULT (aka frames), forward everything
-       * upstream */
-      if (format != GST_FORMAT_TIME && format != GST_FORMAT_DEFAULT) {
-        gst_event_ref (event);
-        ret = gst_pad_push_event (vp->sinkpad, event);
-      } else {
+      /* First try if upstream handles the seek */
+      ret = gst_pad_push_event (vp->sinkpad, event);
+      if (ret)
+        goto done;
+
+      /* Otherwise convert to bytes and push upstream */
+      if (format == GST_FORMAT_TIME || format == GST_FORMAT_DEFAULT) {
+        gst_event_unref (event);
+
         ret =
             gst_video_parse_convert (vp, format, start, GST_FORMAT_BYTES,
             &start);
@@ -769,6 +784,7 @@ gst_video_parse_src_event (GstPad * pad, GstEvent * event)
       break;
   }
 
+done:
   gst_object_unref (vp);
 
   return ret;
@@ -801,7 +817,7 @@ gst_video_parse_src_query (GstPad * pad, GstQuery * query)
       GstFormat format;
       gint64 time, value;
 
-      GST_ERROR ("query position");
+      GST_LOG ("query position");
 
       gst_query_parse_position (query, &format, NULL);
 
@@ -813,18 +829,46 @@ gst_video_parse_src_query (GstPad * pad, GstQuery * query)
 
       break;
     }
-    case GST_QUERY_DURATION:
-      GST_ERROR ("query duration");
-      ret = gst_pad_query (GST_PAD_PEER (vp->srcpad), query);
-      if (!ret)
+    case GST_QUERY_DURATION:{
+      gint64 duration;
+      GstFormat format;
+      GstQuery *bquery;
+
+      GST_LOG ("query duration");
+      ret = gst_pad_peer_query (vp->srcpad, query);
+      if (ret)
+        goto done;
+
+      gst_query_parse_duration (query, &format, NULL);
+      /* We only handle TIME and DEFAULT format */
+      if (format != GST_FORMAT_TIME && format != GST_FORMAT_DEFAULT)
         goto error;
+
+      bquery = gst_query_new_duration (GST_FORMAT_BYTES);
+      ret = gst_pad_peer_query (vp->srcpad, bquery);
+
+      if (!ret) {
+        gst_query_unref (bquery);
+        goto error;
+      }
+
+      gst_query_parse_duration (bquery, NULL, &duration);
+      gst_query_unref (bquery);
+
+      ret =
+          gst_video_parse_convert (vp, GST_FORMAT_BYTES, duration, format,
+          &duration);
+      if (ret)
+        gst_query_set_duration (query, format, duration);
+
       break;
+    }
     case GST_QUERY_CONVERT:
     {
       GstFormat src_fmt, dest_fmt;
       gint64 src_val, dest_val;
 
-      GST_ERROR ("query convert");
+      GST_LOG ("query convert");
 
       gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
       ret = gst_video_parse_convert (vp, src_fmt, src_val, dest_fmt, &dest_val);
-- 
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