From 2e2a51283dfebaa23b3d580743d4556dc7c30a91 Mon Sep 17 00:00:00 2001
From: xuxiuxi <xuxiuxi@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期三, 03 五月 2017 12:21:46 +0800
Subject: [PATCH]
---
VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaTranscodingTable.hh | 66 +++++++++++++++++++++++++++++++++
1 files changed, 66 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaTranscodingTable.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaTranscodingTable.hh
new file mode 100644
index 0000000..a10db06
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaTranscodingTable.hh
@@ -0,0 +1,66 @@
+/**********
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the
+Free Software Foundation; either version 3 of the License, or (at your
+option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
+more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+**********/
+// "liveMedia"
+// Copyright (c) 1996-2017 Live Networks, Inc. All rights reserved.
+// A class that implements a database that can be accessed to create
+// "FramedFilter" (subclass) objects that transcode one codec into another.
+// The implementation of this class just returns NULL for each codec lookup;
+// To actually implement transcoding, you would subclass it.
+// C++ header
+
+#ifndef _MEDIA_TRANSCODING_TABLE_HH
+#define _MEDIA_TRANSCODING_TABLE_HH
+
+#ifndef _FRAMED_FILTER_HH
+#include "FramedFilter.hh"
+#endif
+#ifndef _MEDIA_SESSION_HH
+#include "MediaSession.hh"
+#endif
+
+class MediaTranscodingTable: public Medium {
+public:
+ virtual FramedFilter*
+ lookupTranscoder(MediaSubsession& /*inputCodecDescription*/, // in
+ char*& outputCodecName/* out; must be delete[]d later */) {
+ // Default implementation: Return NULL (indicating: no transcoding).
+ // You would reimplement this virtual function in a subclass to return a new 'transcoding'
+ // "FramedFilter" (subclass) object for each ("mediumName","codecName") that you wish to
+ // transcode (or return NULL for no transcoding).
+ // (Note that "inputCodecDescription" must have a non-NULL "readSource()"; this is used
+ // as the input to the new "FramedFilter" (subclass) object.)
+ outputCodecName = NULL;
+ return NULL;
+ }
+
+ virtual Boolean weWillTranscode(char const* /*mediumName*/, char const* /*codecName*/) {
+ // Default implementation: Return False.
+ // You would reimplement this in a subclass - returning True for each
+ // <mediumName>/<codecName> for which you'll do transcoding.
+ // Note: Unlike "lookupTranscoder()", this function does not actually create any 'transcoding'
+ // filter objects. (It may be called before "MediaSubsession::initiate()".)
+ return False;
+ }
+
+protected: // we are to be subclassed only
+ MediaTranscodingTable(UsageEnvironment& env)
+ : Medium(env) {
+ }
+ virtual ~MediaTranscodingTable() {
+ }
+};
+
+#endif
--
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