From c2a98834b6c9e7249b7450c16a1bdcf3b0cb0cd9 Mon Sep 17 00:00:00 2001
From: Michael Smith <msmith@xiph.org>
Date: Wed, 15 Mar 2006 22:01:40 +0000
Subject: [PATCH] ext/a52dec/gsta52dec.*: Fix #334550: failure to play raw AC3
 files due to segment problems.

Original commit message from CVS:
* ext/a52dec/gsta52dec.c: (gst_a52dec_sink_event),
(gst_a52dec_chain_raw), (gst_a52dec_change_state):
* ext/a52dec/gsta52dec.h:
Fix #334550: failure to play raw AC3 files due to segment problems.
---
 ChangeLog              |  7 +++++++
 ext/a52dec/gsta52dec.c | 18 ++++++++++++++++++
 ext/a52dec/gsta52dec.h |  1 +
 3 files changed, 26 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index ed89163e9d..00fd4073b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-03-15  Michael Smith  <msmith@fluendo.com>
+
+	* ext/a52dec/gsta52dec.c: (gst_a52dec_sink_event),
+	(gst_a52dec_chain_raw), (gst_a52dec_change_state):
+	* ext/a52dec/gsta52dec.h:
+	  Fix #334550: failure to play raw AC3 files due to segment problems.
+
 2006-03-15  Tim-Philipp Müller  <tim at centricular dot net>
 
 	Patch by: Christophe Fergeau  <teuf gnome org>
diff --git a/ext/a52dec/gsta52dec.c b/ext/a52dec/gsta52dec.c
index 2785a85de9..d710842766 100644
--- a/ext/a52dec/gsta52dec.c
+++ b/ext/a52dec/gsta52dec.c
@@ -369,6 +369,7 @@ gst_a52dec_sink_event (GstPad * pad, GstEvent * event)
         GST_WARNING ("No time in newsegment event %p", event);
       } else {
         a52dec->time = val;
+        a52dec->sent_segment = TRUE;
       }
 
       if (a52dec->cache) {
@@ -579,6 +580,22 @@ gst_a52dec_chain_raw (GstPad * pad, GstBuffer * buf)
   gint length = 0, flags, sample_rate, bit_rate;
   GstFlowReturn result = GST_FLOW_OK;
 
+  if (!a52dec->sent_segment) {
+    GstSegment segment;
+
+    /* Create a basic segment. Usually, we'll get a new-segment sent by 
+     * another element that will know more information (a demuxer). If we're
+     * just looking at a raw AC3 stream, we won't - so we need to send one
+     * here, but we don't know much info, so just send a minimal TIME 
+     * new-segment event
+     */
+    gst_segment_init (&segment, GST_FORMAT_TIME);
+    gst_pad_push_event (a52dec->srcpad, gst_event_new_new_segment (FALSE,
+            segment.rate, segment.format, segment.start,
+            segment.duration, segment.start));
+    a52dec->sent_segment = TRUE;
+  }
+
   /* merge with cache, if any. Also make sure timestamps match */
   if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
     a52dec->time = GST_BUFFER_TIMESTAMP (buf);
@@ -662,6 +679,7 @@ gst_a52dec_change_state (GstElement * element, GstStateChange transition)
       a52dec->level = 1;
       a52dec->bias = 0;
       a52dec->time = 0;
+      a52dec->sent_segment = FALSE;
       break;
     case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
       break;
diff --git a/ext/a52dec/gsta52dec.h b/ext/a52dec/gsta52dec.h
index 88d82edbd3..51aa6078e4 100644
--- a/ext/a52dec/gsta52dec.h
+++ b/ext/a52dec/gsta52dec.h
@@ -47,6 +47,7 @@ struct _GstA52Dec {
                 *srcpad;
 
   gboolean       dvdmode;
+  gboolean       sent_segment;
 
   int            bit_rate;
   int            sample_rate;