From 346aa044b0f747ddd01cb5722899e45db2b9d109 Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <moritz@bunkus.org>
Date: Tue, 9 Mar 2004 22:08:35 +0000
Subject: [PATCH] Keep tags when reading Matroska files.

---
 ChangeLog                | 3 +++
 TODO                     | 2 --
 src/input/r_matroska.cpp | 6 ++++++
 src/pr_generic.cpp       | 8 +++++---
 4 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4a89aa79d..0e496a566 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2004-03-09  Moritz Bunkus  <moritz@bunkus.org>
 
+	* mkvmerge: new feature: Tags are being kept when reading Matroska
+	files.
+
 	* mkvmerge: bug fix: Large values for --sync (over 2100) would
 	cause an integer overflow resulting in no sync being done at all.
 
diff --git a/TODO b/TODO
index b8edb4cbe..2d5d2dfda 100644
--- a/TODO
+++ b/TODO
@@ -6,6 +6,4 @@ In no particular order:
 
 * mvkmerge:
 
-- Keep tags when reading from Matroska files.
-
 - Split packed video stuff into proper B frames.
diff --git a/src/input/r_matroska.cpp b/src/input/r_matroska.cpp
index 13a9b646a..616b67ca0 100644
--- a/src/input/r_matroska.cpp
+++ b/src/input/r_matroska.cpp
@@ -1460,6 +1460,10 @@ kax_reader_c::create_packetizer(int64_t tid) {
     if (nti->track_name == NULL)
       nti->track_name = safestrdup(t->track_name);
     nti->id = t->tnum;          // ID for this track.
+    if (t->tag != NULL) {
+      nti->tags = new KaxTags;
+      nti->tags->PushElement(*t->tag);
+    }
 
     if (hack_engaged(ENGAGE_FORCE_PASSTHROUGH_PACKETIZER)) {
       init_passthrough_packetizer(t);
@@ -1655,6 +1659,8 @@ kax_reader_c::create_packetizer(int64_t tid) {
         break;
     }
     set_packetizer_headers(t);
+    if (t->tag != NULL)
+      nti->tags->Remove(0);
     delete nti;
   }
 }
diff --git a/src/pr_generic.cpp b/src/pr_generic.cpp
index 749ba6e56..f0396c8d8 100644
--- a/src/pr_generic.cpp
+++ b/src/pr_generic.cpp
@@ -77,7 +77,7 @@ generic_packetizer_c::generic_packetizer_c(generic_reader_c *nreader,
     ti->async.linear = 1.0;
     ti->async.displacement = 0;
   } else
-    ti->async.displacement *= 1000000; // ms to ns
+    ti->async.displacement *= (int64_t)1000000; // ms to ns
   initial_displacement = ti->async.displacement;
   ti->async.displacement = 0;
 
@@ -1155,8 +1155,10 @@ track_info_c &track_info_c::operator =(const track_info_c &src) {
   for (i = 0; i < src.all_tags->size(); i++)
     (*all_tags)[i].file_name = safestrdup((*src.all_tags)[i].file_name);
   tags_ptr = src.tags_ptr;
-  tags = NULL;
-//   tags = src.tags;
+  if (src.tags != NULL)
+    tags = static_cast<KaxTags *>(src.tags->Clone());
+  else
+    tags = NULL;
 
   aac_is_sbr = new vector<int64_t>(*src.aac_is_sbr);