From 14ba80ec22bf0d3c216e247e63dc78a73ae4639f Mon Sep 17 00:00:00 2001
From: Mark Calderbank <mark@vomp.tv>
Date: Tue, 26 Sep 2006 13:05:39 +0000
Subject: [PATCH] *** empty log message ***

---
 demuxer.cc | 6 ++----
 demuxer.h  | 4 +++-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/demuxer.cc b/demuxer.cc
index b519960..3b1c6d9 100644
--- a/demuxer.cc
+++ b/demuxer.cc
@@ -315,8 +315,6 @@ UINT Demuxer::PESPacket::findPictureHeader()
   return pos-3;
 }
 
-
-// static function for stripping audio from a buffer containing an I Frame and its audio
 UINT Demuxer::stripAudio(UCHAR* buf, UINT len)
 {
   UINT read_pos = 0, write_pos = 0;
@@ -325,8 +323,8 @@ UINT Demuxer::stripAudio(UCHAR* buf, UINT len)
   pattern = (buf[0] << 16) | (buf[1] << 8) | (buf[2]);
   while (read_pos + 7 <= len)
   {
-    pattern = ((pattern << 8) & 0xFFFFFFFF) | buf[read_pos+3];
-    if (pattern < 0x000001E0 || pattern > 0x000001EF)
+    pattern = ((pattern & 0xFFFFFF) << 8) | buf[read_pos+3];
+    if (pattern < 0x100|PESTYPE_VID0 || pattern > 0x100|PESTYPE_VIDMAX)
       read_pos++;
     else
     {
diff --git a/demuxer.h b/demuxer.h
index ecfc011..d168dd0 100644
--- a/demuxer.h
+++ b/demuxer.h
@@ -95,7 +95,9 @@ protected:
       ASPECT_16_9 = 3
     };
 
-    // Strip audio packets from buffer, leaving video only *static function*
+    // Remove all data from a buffer apart from video PES packets.
+    // Returns the length of the reduced data.
+    // *static function*
     static UINT stripAudio(UCHAR* buf, UINT len);
 
   protected:
-- 
2.39.2