Update MediaClient

MediaClient/MediaClientForMobile/media/audio_encoder.h

@@ -0,0 +1,111 @@
+/***************************************************************************************
+ *
+ *  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_ENCODER_H
+#define _AUDIO_ENCODER_H
+
+#include "linked_list.h"
+
+extern "C" 
+{
+#include <libavutil/opt.h>
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+#include <libswresample/swresample.h>
+}
+
+typedef void (*AudioDataCallback)(uint8 *data, int size, int nbsamples, void *pUserdata);
+
+typedef struct
+{
+	AudioDataCallback pCallback;    // callback function pointer
+	void *            pUserdata;    // user data
+	BOOL              bFirst;       // 
+} AudioEncoderCB;
+
+/**
+ * Some encoders require a fixed frame size
+ */
+typedef struct
+{
+    int             tlen;           // buffer total length
+    uint8 *         data[2];        // audio data buffer
+    int             size[2];        // audio data size
+    int             samples;        // audio sample numbers
+} AudioBuffer;
+
+typedef struct
+{    
+    int             SrcSamplerate; // source sample rate
+    int             SrcChannels;   // source channels 
+    AVSampleFormat  SrcSamplefmt;  // source sample format, see AVSampleFormat
+
+    int             DstCodec;      // output codec
+    int             DstSamplerate; // output sample rate
+    int             DstChannels;   // output channels
+    int             DstBitrate;    // output bitrate, unit is bits per second
+    AVSampleFormat  DstSamplefmt;  // output sample format, see AVSampleFormat
+} AudioEncoderParam;
+
+class CAudioEncoder
+{
+public:
+    CAudioEncoder();
+    ~CAudioEncoder();
+    
+    BOOL                init(AudioEncoderParam * params);
+    void                uninit();
+    BOOL                encode(uint8 * data, int size);
+    BOOL                encode(AVFrame * pFrame);
+    void                addCallback(AudioDataCallback pCallback, void *pUserdata);
+    void                delCallback(AudioDataCallback pCallback, void *pUserdata);
+    char *              getAuxSDPLine(int rtp_pt);
+    BOOL                getExtraData(uint8 ** extradata, int * extralen);
+    
+private:  
+    void                flush();
+    BOOL                encodeInternal(AVFrame * pFrame);
+    void                procData(uint8 * data, int size, int nbsamples);
+    BOOL                isCallbackExist(AudioDataCallback pCallback, void *pUserdata);
+    char *              getAACAuxSDPLine(int rtp_pt);
+    BOOL                bufferFrame(AVFrame * pFrame);
+    int                 computeBitrate(AVCodecID codec, int samplerate, int channels, int quality);
+    
+private:
+    AVCodecID           m_nCodecId;
+    BOOL                m_bInited;
+
+    AudioEncoderParam   m_EncoderParams;
+    
+    AVCodecContext *    m_pCodecCtx;
+    AVFrame *           m_pFrame;
+    AVFrame *           m_pResampleFrame;
+    SwrContext *        m_pSwrCtx;
+    AudioBuffer         m_AudioBuffer;
+    AVPacket *          m_pPkt;
+    
+    void *              m_pCallbackMutex;
+	LINKED_LIST *       m_pCallbackList;
+};
+
+#endif // _AUDIO_ENCODER_H
+
+
+