112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
|
/***************************************************************************************
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
|
||
|
|
|
||
|
|
|