From 8823ae251a72bd18fc93322914c70390fc16c6b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian.droege@collabora.co.uk>
Date: Mon, 23 May 2011 11:36:36 +0200
Subject: [PATCH] flacparse: Implement conversions between TIME and DEFAULT
 format

Fixes bug #650785.
---
 gst/audioparsers/gstflacparse.c | 35 +++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/gst/audioparsers/gstflacparse.c b/gst/audioparsers/gstflacparse.c
index 0671187dab..0c766552bf 100644
--- a/gst/audioparsers/gstflacparse.c
+++ b/gst/audioparsers/gstflacparse.c
@@ -198,6 +198,9 @@ static GstFlowReturn gst_flac_parse_parse_frame (GstBaseParse * parse,
     GstBaseParseFrame * frame);
 static GstFlowReturn gst_flac_parse_pre_push_frame (GstBaseParse * parse,
     GstBaseParseFrame * frame);
+static gboolean gst_flac_parse_convert (GstBaseParse * parse,
+    GstFormat src_format, gint64 src_value, GstFormat dest_format,
+    gint64 * dest_value);
 
 GST_BOILERPLATE (GstFlacParse, gst_flac_parse, GstBaseParse,
     GST_TYPE_BASE_PARSE);
@@ -244,6 +247,7 @@ gst_flac_parse_class_init (GstFlacParseClass * klass)
   baseparse_class->parse_frame = GST_DEBUG_FUNCPTR (gst_flac_parse_parse_frame);
   baseparse_class->pre_push_frame =
       GST_DEBUG_FUNCPTR (gst_flac_parse_pre_push_frame);
+  baseparse_class->convert = GST_DEBUG_FUNCPTR (gst_flac_parse_convert);
 }
 
 static void
@@ -1351,3 +1355,34 @@ gst_flac_parse_pre_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
 
   return GST_FLOW_OK;
 }
+
+static gboolean
+gst_flac_parse_convert (GstBaseParse * parse,
+    GstFormat src_format, gint64 src_value, GstFormat dest_format,
+    gint64 * dest_value)
+{
+  GstFlacParse *flacparse = GST_FLAC_PARSE (parse);
+
+  if (flacparse->samplerate > 0) {
+    if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_TIME) {
+      if (src_value != -1)
+        *dest_value =
+            gst_util_uint64_scale (src_value, GST_SECOND,
+            flacparse->samplerate);
+      else
+        *dest_value = -1;
+      return TRUE;
+    } else if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_TIME) {
+      if (src_value != -1)
+        *dest_value =
+            gst_util_uint64_scale (src_value, flacparse->samplerate,
+            GST_SECOND);
+      else
+        *dest_value = -1;
+      return TRUE;
+    }
+  }
+
+  return GST_BASE_PARSE_CLASS (parent_class)->convert (parse, src_format,
+      src_value, dest_format, dest_value);
+}