Update MediaClient

MediaClient/MediaClientForMobile/media/audio_decoder.h

@@ -0,0 +1,73 @@
+/***************************************************************************************
+ *
+ *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+ *
+ *  By downloading, copying, installing or using the software you agree to this license.
+ *  If you do not agree to this license, do not download, install, 
+ *  copy or use the software.
+ *
+ *  Copyright (C) 2014-2024, Happytimesoft Corporation, all rights reserved.
+ *
+ *  Redistribution and use in binary forms, with or without modification, are permitted.
+ *
+ *  Unless required by applicable law or agreed to in writing, software distributed 
+ *  under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ *  CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
+ *  language governing permissions and limitations under the License.
+ *
+****************************************************************************************/
+
+#ifndef AUDIO_DECODER_H
+#define AUDIO_DECODER_H
+
+#include "sys_inc.h"
+#include "media_format.h"
+
+extern "C"
+{
+#include "libavcodec/avcodec.h"
+#include "libavutil/avutil.h"
+#include "libswscale/swscale.h"
+#include "libavformat/avformat.h"
+#include <libswresample/swresample.h>
+}
+
+typedef void (*ADCB)(AVFrame * frame, void * userdata);
+
+class CAudioDecoder
+{
+public:
+    CAudioDecoder();
+    ~CAudioDecoder();
+
+    BOOL        init(int codec, int samplerate, int channels, int bitpersample = 0);
+    BOOL        init(enum AVCodecID codec, int samplerate, int channels, int bitpersample = 0);
+    void        uninit();
+    
+    BOOL        decode(uint8 * data, int len, int64_t pts = AV_NOPTS_VALUE);
+    BOOL        decode(AVPacket *pkt);
+    void        setCallback(ADCB pCallback, void * pUserdata) {m_pCallback = pCallback; m_pUserdata = pUserdata;}
+
+private:
+    void        flush();    
+    void        render(AVFrame * frame);
+    
+private:
+    BOOL			m_bInited;
+    int             m_nSamplerate;
+    int             m_nChannels;
+
+    AVCodec *       m_pCodec;
+    AVCodecContext* m_pContext;
+    AVFrame *       m_pFrame;
+    AVFrame *       m_pResampleFrame;
+    SwrContext *    m_pSwrCtx;
+    AVSampleFormat  m_nDstFormat;
+    
+    ADCB            m_pCallback;
+    void *          m_pUserdata;    
+};
+
+#endif
+
+