From 29179252e3e9619738f36d3ddc37c88073870388 Mon Sep 17 00:00:00 2001
From: houxiao <houxiao@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期二, 21 三月 2017 10:11:00 +0800
Subject: [PATCH]
---
VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/WAVAudioFileSource.hh | 86 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 86 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/WAVAudioFileSource.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/WAVAudioFileSource.hh
new file mode 100644
index 0000000..43d56de
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/WAVAudioFileSource.hh
@@ -0,0 +1,86 @@
+/**********
+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 WAV audio file source
+// NOTE: Samples are returned in little-endian order (the same order in which
+// they were stored in the file).
+// C++ header
+
+#ifndef _WAV_AUDIO_FILE_SOURCE_HH
+#define _WAV_AUDIO_FILE_SOURCE_HH
+
+#ifndef _AUDIO_INPUT_DEVICE_HH
+#include "AudioInputDevice.hh"
+#endif
+
+typedef enum {
+ WA_PCM = 0x01,
+ WA_PCMA = 0x06,
+ WA_PCMU = 0x07,
+ WA_IMA_ADPCM = 0x11,
+ WA_UNKNOWN
+} WAV_AUDIO_FORMAT;
+
+
+class WAVAudioFileSource: public AudioInputDevice {
+public:
+
+ static WAVAudioFileSource* createNew(UsageEnvironment& env,
+ char const* fileName);
+
+ unsigned numPCMBytes() const;
+ void setScaleFactor(int scale);
+ void seekToPCMByte(unsigned byteNumber);
+ void limitNumBytesToStream(unsigned numBytesToStream);
+ // if "numBytesToStream" is >0, then we limit the stream to that number of bytes, before treating it as EOF
+
+ unsigned char getAudioFormat();
+
+protected:
+ WAVAudioFileSource(UsageEnvironment& env, FILE* fid);
+ // called only by createNew()
+
+ virtual ~WAVAudioFileSource();
+
+ static void fileReadableHandler(WAVAudioFileSource* source, int mask);
+ void doReadFromFile();
+
+private:
+ // redefined virtual functions:
+ virtual void doGetNextFrame();
+ virtual void doStopGettingFrames();
+ virtual Boolean setInputPort(int portIndex);
+ virtual double getAverageLevel() const;
+
+protected:
+ unsigned fPreferredFrameSize;
+
+private:
+ FILE* fFid;
+ double fPlayTimePerSample; // useconds
+ Boolean fFidIsSeekable;
+ unsigned fLastPlayTime; // useconds
+ Boolean fHaveStartedReading;
+ unsigned fWAVHeaderSize;
+ unsigned fFileSize;
+ int fScaleFactor;
+ Boolean fLimitNumBytesToStream;
+ unsigned fNumBytesToStream; // used iff "fLimitNumBytesToStream" is True
+ unsigned char fAudioFormat;
+};
+
+#endif
--
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