主页网站建设,山东网站营销seo哪家好,怎么网站开发,北京专业网站建设公司Silk编解码是Skype向第三方开发人员和硬件制造商提供免版税认证(RF)的Silk宽带音频编码器。Skype已将其开源#xff0c;可以访问http://developer.skype.com/silk获取最新动向。SILK Codec是一个语音和音频编解码算法, 对于音频带宽、网络带宽和算法复杂度都具有很好的弹性。支…Silk编解码是Skype向第三方开发人员和硬件制造商提供免版税认证(RF)的Silk宽带音频编码器。Skype已将其开源可以访问http://developer.skype.com/silk获取最新动向。SILK Codec是一个语音和音频编解码算法, 对于音频带宽、网络带宽和算法复杂度都具有很好的弹性。支持4种采样率8KHz、12KHz、16KHz、24KHz三种复杂度低、中、高。编码码率在 6~40kbps(不同采样率具有不同的码率范围)以及还支持VAD、DTX、FEC等模块感觉还是比较全面。最重要的一点是提供了定点C代码非常有利于向ARM、DSP移植和优化。这一篇主要参考了pjsip中的silk实现。2、创建新的android工程并创建jni文件夹。3、将silk源码拷贝到jni目录4、在jni目录下新增Android.mk文件编辑内容如下LOCAL_PATH : $(call my-dir)include $(CLEAR_VARS)SILK : silkLOCAL_MODULE : silkcommonLOCAL_SRC_FILES : $(SILK)/src/SKP_Silk_A2NLSF.c \$(SILK)/src/SKP_Silk_CNG.c \$(SILK)/src/SKP_Silk_HP_variable_cutoff_FIX.c \$(SILK)/src/SKP_Silk_LBRR_reset.c \$(SILK)/src/SKP_Silk_LPC_inv_pred_gain.c \$(SILK)/src/SKP_Silk_LPC_stabilize.c \$(SILK)/src/SKP_Silk_LPC_synthesis_filter.c \$(SILK)/src/SKP_Silk_LPC_synthesis_order16.c \$(SILK)/src/SKP_Silk_LP_variable_cutoff.c \$(SILK)/src/SKP_Silk_LSF_cos_table.c \$(SILK)/src/SKP_Silk_LTP_analysis_filter_FIX.c \$(SILK)/src/SKP_Silk_LTP_scale_ctrl_FIX.c \$(SILK)/src/SKP_Silk_MA.c \$(SILK)/src/SKP_Silk_NLSF2A.c \$(SILK)/src/SKP_Silk_NLSF2A_stable.c \$(SILK)/src/SKP_Silk_NLSF_MSVQ_decode.c \$(SILK)/src/SKP_Silk_NLSF_MSVQ_encode_FIX.c \$(SILK)/src/SKP_Silk_NLSF_VQ_rate_distortion_FIX.c \$(SILK)/src/SKP_Silk_NLSF_VQ_sum_error_FIX.c \$(SILK)/src/SKP_Silk_NLSF_VQ_weights_laroia.c \$(SILK)/src/SKP_Silk_NLSF_stabilize.c \$(SILK)/src/SKP_Silk_NSQ.c \$(SILK)/src/SKP_Silk_NSQ_del_dec.c \$(SILK)/src/SKP_Silk_PLC.c \$(SILK)/src/SKP_Silk_VAD.c \$(SILK)/src/SKP_Silk_VQ_nearest_neighbor_FIX.c \$(SILK)/src/SKP_Silk_allpass_int.c \$(SILK)/src/SKP_Silk_ana_filt_bank_1.c \$(SILK)/src/SKP_Silk_apply_sine_window.c \$(SILK)/src/SKP_Silk_array_maxabs.c \$(SILK)/src/SKP_Silk_autocorr.c \$(SILK)/src/SKP_Silk_biquad.c \$(SILK)/src/SKP_Silk_biquad_alt.c \$(SILK)/src/SKP_Silk_burg_modified.c \$(SILK)/src/SKP_Silk_bwexpander.c \$(SILK)/src/SKP_Silk_bwexpander_32.c \$(SILK)/src/SKP_Silk_code_signs.c \$(SILK)/src/SKP_Silk_control_codec_FIX.c \$(SILK)/src/SKP_Silk_corrMatrix_FIX.c \$(SILK)/src/SKP_Silk_create_init_destroy.c \$(SILK)/src/SKP_Silk_dec_API.c \$(SILK)/src/SKP_Silk_decode_core.c \$(SILK)/src/SKP_Silk_decode_frame.c \$(SILK)/src/SKP_Silk_decode_indices_v4.c \$(SILK)/src/SKP_Silk_decode_parameters.c \$(SILK)/src/SKP_Silk_decode_parameters_v4.c \$(SILK)/src/SKP_Silk_decode_pulses.c \$(SILK)/src/SKP_Silk_decoder_set_fs.c \$(SILK)/src/SKP_Silk_detect_SWB_input.c \$(SILK)/src/SKP_Silk_enc_API.c \$(SILK)/src/SKP_Silk_encode_frame_FIX.c \$(SILK)/src/SKP_Silk_encode_parameters.c \$(SILK)/src/SKP_Silk_encode_parameters_v4.c \$(SILK)/src/SKP_Silk_encode_pulses.c \$(SILK)/src/SKP_Silk_find_LPC_FIX.c \$(SILK)/src/SKP_Silk_find_LTP_FIX.c \$(SILK)/src/SKP_Silk_find_pitch_lags_FIX.c \$(SILK)/src/SKP_Silk_find_pred_coefs_FIX.c \$(SILK)/src/SKP_Silk_gain_quant.c \$(SILK)/src/SKP_Silk_init_encoder_FIX.c \$(SILK)/src/SKP_Silk_inner_prod_aligned.c \$(SILK)/src/SKP_Silk_interpolate.c \$(SILK)/src/SKP_Silk_k2a.c \$(SILK)/src/SKP_Silk_k2a_Q16.c \$(SILK)/src/SKP_Silk_lin2log.c \$(SILK)/src/SKP_Silk_log2lin.c \$(SILK)/src/SKP_Silk_lowpass_int.c \$(SILK)/src/SKP_Silk_lowpass_short.c \$(SILK)/src/SKP_Silk_noise_shape_analysis_FIX.c \$(SILK)/src/SKP_Silk_pitch_analysis_core.c \$(SILK)/src/SKP_Silk_pitch_est_tables.c \$(SILK)/src/SKP_Silk_prefilter_FIX.c \$(SILK)/src/SKP_Silk_process_NLSFs_FIX.c \$(SILK)/src/SKP_Silk_process_gains_FIX.c \$(SILK)/src/SKP_Silk_pulses_to_bytes.c \$(SILK)/src/SKP_Silk_quant_LTP_gains_FIX.c \$(SILK)/src/SKP_Silk_range_coder.c \$(SILK)/src/SKP_Silk_regularize_correlations_FIX.c \$(SILK)/src/SKP_Silk_resample_1_2.c \$(SILK)/src/SKP_Silk_resample_1_2_coarse.c \$(SILK)/src/SKP_Silk_resample_1_2_coarsest.c \$(SILK)/src/SKP_Silk_resample_1_3.c \$(SILK)/src/SKP_Silk_resample_2_1_coarse.c \$(SILK)/src/SKP_Silk_resample_2_3.c \$(SILK)/src/SKP_Silk_resample_2_3_coarse.c \$(SILK)/src/SKP_Silk_resample_2_3_coarsest.c \$(SILK)/src/SKP_Silk_resample_2_3_rom.c \$(SILK)/src/SKP_Silk_resample_3_1.c \$(SILK)/src/SKP_Silk_resample_3_2.c \$(SILK)/src/SKP_Silk_resample_3_2_rom.c \$(SILK)/src/SKP_Silk_resample_3_4.c \$(SILK)/src/SKP_Silk_resample_4_3.c \$(SILK)/src/SKP_Silk_residual_energy16_FIX.c \$(SILK)/src/SKP_Silk_residual_energy_FIX.c \$(SILK)/src/SKP_Silk_scale_copy_vector16.c \$(SILK)/src/SKP_Silk_scale_vector.c \$(SILK)/src/SKP_Silk_schur.c \$(SILK)/src/SKP_Silk_schur64.c \$(SILK)/src/SKP_Silk_shell_coder.c \$(SILK)/src/SKP_Silk_sigm_Q15.c \$(SILK)/src/SKP_Silk_solve_LS_FIX.c \$(SILK)/src/SKP_Silk_sort.c \$(SILK)/src/SKP_Silk_sum_sqr_shift.c \$(SILK)/src/SKP_Silk_tables_LTP.c \$(SILK)/src/SKP_Silk_tables_NLSF_CB0_10.c \$(SILK)/src/SKP_Silk_tables_NLSF_CB0_16.c \$(SILK)/src/SKP_Silk_tables_NLSF_CB1_10.c \$(SILK)/src/SKP_Silk_tables_NLSF_CB1_16.c \$(SILK)/src/SKP_Silk_tables_gain.c \$(SILK)/src/SKP_Silk_tables_other.c \$(SILK)/src/SKP_Silk_tables_pitch_lag.c \$(SILK)/src/SKP_Silk_tables_pulses_per_block.c \$(SILK)/src/SKP_Silk_tables_sign.c \$(SILK)/src/SKP_Silk_tables_type_offset.cLOCAL_ARM_MODE : armLOCAL_CFLAGS -O3LOCAL_LDLIBS : -L$(SYSROOT)/usr/lib -llogLOCAL_C_INCLUDES $(LOCAL_PATH)/$(SILK)/src $(LOCAL_PATH)/$(SILK)/interfaceinclude $(BUILD_STATIC_LIBRARY)include $(CLEAR_VARS)LOCAL_MODULE : silk8_jniLOCAL_SRC_FILES : silk8_jni.cppLOCAL_C_INCLUDES $(LOCAL_PATH)/$(SILK)/src $(LOCAL_PATH)/$(SILK)/interfaceLOCAL_CFLAGS -O3LOCAL_STATIC_LIBRARIES : silkcommonLOCAL_ARM_MODE : armLOCAL_LDLIBS : -L$(SYSROOT)/usr/lib -lloginclude $(BUILD_SHARED_LIBRARY)include $(CLEAR_VARS)LOCAL_MODULE : silk16_jniLOCAL_SRC_FILES : silk16_jni.cppLOCAL_C_INCLUDES $(LOCAL_PATH)/$(SILK)/src $(LOCAL_PATH)/$(SILK)/interfaceLOCAL_CFLAGS -O3LOCAL_STATIC_LIBRARIES : silkcommonLOCAL_ARM_MODE : armLOCAL_LDLIBS : -L$(SYSROOT)/usr/lib -lloginclude $(BUILD_SHARED_LIBRARY)include $(CLEAR_VARS)LOCAL_MODULE : silk24_jniLOCAL_SRC_FILES : silk24_jni.cppLOCAL_C_INCLUDES $(LOCAL_PATH)/$(SILK)/src $(LOCAL_PATH)/$(SILK)/interfaceLOCAL_CFLAGS -O3LOCAL_STATIC_LIBRARIES : silkcommonLOCAL_ARM_MODE : armLOCAL_LDLIBS : -L$(SYSROOT)/usr/lib -lloginclude $(BUILD_SHARED_LIBRARY)5、创建JNI包装类silk8_jni.cpp、silk16_jni.cpp、silk24_jni.cpp用来调用Silk中的C代码函数编辑内容如下silk8_jni.cpp:#include #include #include #include #include /* Define codec specific settings */#define MAX_BYTES_ENC_PER_FRAME 250 // Equals peak bitrate of 100 kbps#define MAX_BYTES_DEC_PER_FRAME 1024#define MAX_INPUT_FRAMES 5#define MAX_LBRR_DELAY 2#define MAX_FRAME_LENGTH 480#defineMAX_FRAME160#include #define LOG_TAG silk // text for log tag#include SKP_Silk_SDK_API.h#include SKP_Silk_SigProc_FIX.h#undef DEBUG_SILK8// the header length of the RTP frame (must skip when en/decoding)#defineRTP_HDR_SIZE12static int codec_open 0;static JavaVM *gJavaVM;const char *kInterfacePath org/sipdroid/pjlib/silk8;/* encoder parameters */SKP_int32 encSizeBytes;void *psEnc;/* default settings */SKP_int fs_kHz 8;SKP_int targetRate_bps 20000;SKP_int packetSize_ms 20;SKP_int frameSizeReadFromFile_ms 20;SKP_int packetLoss_perc 0, smplsSinceLastPacket;SKP_int INBandFec_enabled 0, DTX_enabled 0, quiet 0;SKP_SILK_SDK_EncControlStruct encControl; // Struct for input to encoder/* decoder parameters */jbyte payloadToDec[ MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY 1 ) ];jshort out[ ( MAX_FRAME_LENGTH 1 ) * MAX_INPUT_FRAMES ], *outPtr;SKP_int32 decSizeBytes;void *psDec;SKP_SILK_SDK_DecControlStruct DecControl;extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK8_open(JNIEnv *env, jobject obj, jint compression) {int ret;if (codec_open ! 0)return (jint)0;/* Set the samplingrate that is requested for the output */DecControl.sampleRate 8000;/* Create decoder */ret SKP_Silk_SDK_Get_Decoder_Size( decSizeBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_Get_Decoder_Size returned %d, ret );}#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,### INIT Decoder decSizeBytes %d\n, decSizeBytes);#endifpsDec malloc( decSizeBytes );/* Reset decoder */ret SKP_Silk_SDK_InitDecoder( psDec );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_InitDecoder returned %d, ret );}/* Create Encoder */ret SKP_Silk_SDK_Get_Encoder_Size( encSizeBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_Get_Encoder_Size returned %d, ret );}#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,### INIT Encoder encSizeBytes %d\n, encSizeBytes);#endifpsEnc malloc( encSizeBytes );/* Reset Encoder */ret SKP_Silk_SDK_InitEncoder( psEnc, encControl );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_InitEncoder returned %d, ret );}/* Set Encoder parameters */encControl.sampleRate fs_kHz * 1000;encControl.packetSize packetSize_ms * fs_kHz;encControl.packetLossPercentage packetLoss_perc;encControl.useInBandFEC INBandFec_enabled;encControl.useDTX DTX_enabled;encControl.complexity compression;encControl.bitRate targetRate_bps;return (jint)0;}void Print_Decode_Error_Msg(int errcode) {switch (errcode) {case SKP_SILK_DEC_WRONG_SAMPLING_FREQUENCY:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nOutput sampling frequency lower than internal decoded sampling frequency\n, errcode);break;case SKP_SILK_DEC_PAYLOAD_TOO_LARGE:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPayload size exceeded the maximum allowed 1024 bytes\n, errcode);break;case SKP_SILK_DEC_PAYLOAD_ERROR:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPayload has bit errors\n, errcode);break;}}void Print_Encode_Error_Msg(int errcode) {switch (errcode) {case SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInput length is not a multiplum of 10 ms, or length is longer than the packet length\n, errcode);break;case SKP_SILK_ENC_FS_NOT_SUPPORTED:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nSampling frequency not 8000, 12000, 16000 or 24000 Hertz \n, errcode);break;case SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPacket size not 20, 40, 60, 80 or 100 ms\n, errcode);break;case SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nAllocated payload buffer too short \n, errcode);break;case SKP_SILK_ENC_WRONG_LOSS_RATE:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nLoss rate not between 0 and 100 percent\n, errcode);break;case SKP_SILK_ENC_WRONG_COMPLEXITY_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nComplexity setting not valid, use 0, 1 or 2\n, errcode);break;case SKP_SILK_ENC_WRONG_INBAND_FEC_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInband FEC setting not valid, use 0 or 1\n, errcode);break;case SKP_SILK_ENC_WRONG_DTX_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nDTX setting not valid, use 0 or 1\n, errcode);break;case SKP_SILK_ENC_INTERNAL_ERROR:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInternal encoder error\n, errcode);break;}}extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK8_encode(JNIEnv *env, jobject obj, jshortArray lin, jint offset, jbyteArray encoded, jint size) {jbyte enc_payload[ MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES ];jshort in[ MAX_FRAME_LENGTH * MAX_INPUT_FRAMES ];int ret,i,frszMAX_FRAME;SKP_int16 nBytes;unsigned int lin_pos 0;if (!codec_open)return 0;#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding frame size: %d\toffset: %d\n, size, offset);#endiffor (i 0; i size; iMAX_FRAME) {#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding frame size: %d\toffset: %d i: %d\n, size, offset, i);#endifenv-GetShortArrayRegion(lin, offset i,frsz, in);/* max payload size */nBytes MAX_BYTES_ENC_PER_FRAME * MAX_INPUT_FRAMES;ret SKP_Silk_SDK_Encode( psEnc, encControl, in, (SKP_int16)frsz, (SKP_uint8 *)enc_payload, nBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!! SKP_Silk_Encode returned: %d\n, ret);Print_Encode_Error_Msg(ret);break;}#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,Enocded nBytes: %d\n, nBytes);#endif/* Write payload */env-SetByteArrayRegion(encoded, RTP_HDR_SIZE lin_pos, nBytes, enc_payload);lin_pos nBytes;}#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding **END** frame size: %d\toffset: %d i: %d lin_pos: %d\n, size, offset, i, lin_pos);#endifreturn (jint)lin_pos;}extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK8_decode(JNIEnv *env, jobject obj, jbyteArray encoded, jshortArray lin, jint size) {jbyte buffer [MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY 1 ) ];jshort output_buffer[( MAX_FRAME_LENGTH 1 ) * MAX_INPUT_FRAMES ];//SKP_int16*outPtr;int ret;SKP_int16 len;//inttot_len,frames;if (!codec_open)return 0;#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,##### BEGIN DECODE ******** decoding frame size: %d\n, size);#endifenv-GetByteArrayRegion(encoded, RTP_HDR_SIZE, size, buffer);//outPtr output_buffer;// tot_len 0;//frames 0;//do {ret SKP_Silk_SDK_Decode( psDec, DecControl, 0,(SKP_uint8 *) buffer, size, output_buffer,len );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!! SKP_Silk_SDK_Decode returned: %d\n, ret);Print_Decode_Error_Msg(ret);}#ifdef DEBUG_SILK8__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,##### DECODED length: %d\n\t Frame #: %d, len);#endif//frames;//outPtr len;//tot_len len;//} while( DecControl.moreInternalDecoderFrames );env-SetShortArrayRegion(lin, 0, len,output_buffer);return (jint)len;}extern CJNIEXPORT void JNICALL Java_com_trunkbow_silk_SILK8_close(JNIEnv *env, jobject obj) {if (--codec_open ! 0)return;/* Free decoder */free( psDec );/* Free Encoder */free( psEnc );}silk_16.cpp:#include #include #include #include #include /* Define codec specific settings */#define MAX_BYTES_ENC_PER_FRAME 250 // Equals peak bitrate of 100 kbps#define MAX_BYTES_DEC_PER_FRAME 1024#define MAX_INPUT_FRAMES 5#define MAX_LBRR_DELAY 2#define MAX_FRAME_LENGTH 480#defineMAX_FRAME320#include #define LOG_TAG silk // text for log tag#include SKP_Silk_SDK_API.h#include SKP_Silk_SigProc_FIX.h#undef DEBUG_SILK16// the header length of the RTP frame (must skip when en/decoding)#defineRTP_HDR_SIZE12static int codec_open 0;static JavaVM *gJavaVM;const char *kInterfacePath org/sipdroid/pjlib/silk16;/* encoder parameters */SKP_int32 encSizeBytes;void *psEnc;/* default settings */SKP_int fs_kHz 16;SKP_int targetRate_bps 20000;SKP_int packetSize_ms 20;SKP_int frameSizeReadFromFile_ms 20;SKP_int packetLoss_perc 0, smplsSinceLastPacket;SKP_int INBandFec_enabled 0, DTX_enabled 0, quiet 0;SKP_SILK_SDK_EncControlStruct encControl; // Struct for input to encoder/* decoder parameters */jbyte payloadToDec[ MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY 1 ) ];jshort out[ ( MAX_FRAME_LENGTH 1 ) * MAX_INPUT_FRAMES ], *outPtr;SKP_int32 decSizeBytes;void *psDec;SKP_SILK_SDK_DecControlStruct DecControl;extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK16_open(JNIEnv *env, jobject obj, jint compression) {int ret;if (codec_open ! 0)return (jint)0;/* Set the samplingrate that is requested for the output */DecControl.sampleRate 16000;/* Create decoder */ret SKP_Silk_SDK_Get_Decoder_Size( decSizeBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_Get_Decoder_Size returned %d, ret );}#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,### INIT Decoder decSizeBytes %d\n, decSizeBytes);#endifpsDec malloc( decSizeBytes );/* Reset decoder */ret SKP_Silk_SDK_InitDecoder( psDec );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_InitDecoder returned %d, ret );}/* Create Encoder */ret SKP_Silk_SDK_Get_Encoder_Size( encSizeBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_Get_Encoder_Size returned %d, ret );}#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,### INIT Encoder encSizeBytes %d\n, encSizeBytes);#endifpsEnc malloc( encSizeBytes );/* Reset Encoder */ret SKP_Silk_SDK_InitEncoder( psEnc, encControl );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_InitEncoder returned %d, ret );}/* Set Encoder parameters */encControl.sampleRate fs_kHz * 1000;encControl.packetSize packetSize_ms * fs_kHz;encControl.packetLossPercentage packetLoss_perc;encControl.useInBandFEC INBandFec_enabled;encControl.useDTX DTX_enabled;encControl.complexity compression;encControl.bitRate targetRate_bps;return (jint)0;}void Print_Decode_Error_Msg(int errcode) {switch (errcode) {case SKP_SILK_DEC_WRONG_SAMPLING_FREQUENCY:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nOutput sampling frequency lower than internal decoded sampling frequency\n, errcode);break;case SKP_SILK_DEC_PAYLOAD_TOO_LARGE:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPayload size exceeded the maximum allowed 1024 bytes\n, errcode);break;case SKP_SILK_DEC_PAYLOAD_ERROR:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPayload has bit errors\n, errcode);break;}}void Print_Encode_Error_Msg(int errcode) {switch (errcode) {case SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInput length is not a multiplum of 10 ms, or length is longer than the packet length\n, errcode);break;case SKP_SILK_ENC_FS_NOT_SUPPORTED:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nSampling frequency not 8000, 12000, 16000 or 24000 Hertz \n, errcode);break;case SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPacket size not 20, 40, 60, 80 or 100 ms\n, errcode);break;case SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nAllocated payload buffer too short \n, errcode);break;case SKP_SILK_ENC_WRONG_LOSS_RATE:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nLoss rate not between 0 and 100 percent\n, errcode);break;case SKP_SILK_ENC_WRONG_COMPLEXITY_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nComplexity setting not valid, use 0, 1 or 2\n, errcode);break;case SKP_SILK_ENC_WRONG_INBAND_FEC_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInband FEC setting not valid, use 0 or 1\n, errcode);break;case SKP_SILK_ENC_WRONG_DTX_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nDTX setting not valid, use 0 or 1\n, errcode);break;case SKP_SILK_ENC_INTERNAL_ERROR:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInternal encoder error\n, errcode);break;}}extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK16_encode(JNIEnv *env, jobject obj, jshortArray lin, jint offset, jbyteArray encoded, jint size) {jbyte enc_payload[ MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES ];jshort in[ MAX_FRAME_LENGTH * MAX_INPUT_FRAMES ];int ret,i,frszMAX_FRAME;SKP_int16 nBytes;unsigned int lin_pos 0;if (!codec_open)return 0;#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding frame size: %d\toffset: %d\n, size, offset);#endiffor (i 0; i size; iMAX_FRAME) {#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding frame size: %d\toffset: %d i: %d\n, size, offset, i);#endifenv-GetShortArrayRegion(lin, offset i,frsz, in);/* max payload size */nBytes MAX_BYTES_ENC_PER_FRAME * MAX_INPUT_FRAMES;ret SKP_Silk_SDK_Encode( psEnc, encControl, in, (SKP_int16)frsz, (SKP_uint8 *)enc_payload, nBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!! SKP_Silk_Encode returned: %d\n, ret);Print_Encode_Error_Msg(ret);break;}#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,Enocded nBytes: %d\n, nBytes);#endif/* Write payload */env-SetByteArrayRegion(encoded, RTP_HDR_SIZE lin_pos, nBytes, enc_payload);lin_pos nBytes;}#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding **END** frame size: %d\toffset: %d i: %d lin_pos: %d\n, size, offset, i, lin_pos);#endifreturn (jint)lin_pos;}extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK16_decode(JNIEnv *env, jobject obj, jbyteArray encoded, jshortArray lin, jint size) {jbyte buffer [MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY 1 ) ];jshort output_buffer[( MAX_FRAME_LENGTH 1 ) * MAX_INPUT_FRAMES ];//SKP_int16*outPtr;int ret;SKP_int16 len;//inttot_len,frames;if (!codec_open)return 0;#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,##### BEGIN DECODE ******** decoding frame size: %d\n, size);#endifenv-GetByteArrayRegion(encoded, RTP_HDR_SIZE, size, buffer);//outPtr output_buffer;// tot_len 0;//frames 0;//do {ret SKP_Silk_SDK_Decode( psDec, DecControl, 0,(SKP_uint8 *) buffer, size, output_buffer,len );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!! SKP_Silk_SDK_Decode returned: %d\n, ret);Print_Decode_Error_Msg(ret);}#ifdef DEBUG_SILK16__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,##### DECODED length: %d\n\t Frame #: %d, len);#endif//frames;//outPtr len;//tot_len len;//} while( DecControl.moreInternalDecoderFrames );env-SetShortArrayRegion(lin, 0, len,output_buffer);return (jint)len;}extern CJNIEXPORT void JNICALL Java_com_trunkbow_silk_SILK16_close(JNIEnv *env, jobject obj) {if (--codec_open ! 0)return;/* Free decoder */free( psDec );/* Free Encoder */free( psEnc );}silk24_jni.cpp#include #include #include #include #include /* Define codec specific settings */#define MAX_BYTES_ENC_PER_FRAME 250 // Equals peak bitrate of 100 kbps#define MAX_BYTES_DEC_PER_FRAME 1024#define MAX_INPUT_FRAMES 5#define MAX_LBRR_DELAY 2#define MAX_FRAME_LENGTH 480#defineMAX_FRAME480#include #define LOG_TAG silk // text for log tag#include SKP_Silk_SDK_API.h#include SKP_Silk_SigProc_FIX.h#undef DEBUG_SILK24// the header length of the RTP frame (must skip when en/decoding)#defineRTP_HDR_SIZE12static int codec_open 0;static JavaVM *gJavaVM;const char *kInterfacePath org/sipdroid/pjlib/SILK24;/* encoder parameters */SKP_int32 encSizeBytes;void *psEnc;/* default settings */SKP_int fs_kHz 24;SKP_int targetRate_bps 20000;SKP_int packetSize_ms 20;SKP_int frameSizeReadFromFile_ms 20;SKP_int packetLoss_perc 0, smplsSinceLastPacket;SKP_int INBandFec_enabled 0, DTX_enabled 0, quiet 0;SKP_SILK_SDK_EncControlStruct encControl; // Struct for input to encoder/* decoder parameters */jbyte payloadToDec[ MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY 1 ) ];jshort out[ ( MAX_FRAME_LENGTH 1 ) * MAX_INPUT_FRAMES ], *outPtr;SKP_int32 decSizeBytes;void *psDec;SKP_SILK_SDK_DecControlStruct DecControl;extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK24_open(JNIEnv *env, jobject obj, jint compression) {int ret;if (codec_open ! 0)return (jint)0;/* Set the samplingrate that is requested for the output */DecControl.sampleRate 24000;/* Create decoder */ret SKP_Silk_SDK_Get_Decoder_Size( decSizeBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_Get_Decoder_Size returned %d, ret );}#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,### INIT Decoder decSizeBytes %d\n, decSizeBytes);#endifpsDec malloc( decSizeBytes );/* Reset decoder */ret SKP_Silk_SDK_InitDecoder( psDec );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_InitDecoder returned %d, ret );}/* Create Encoder */ret SKP_Silk_SDK_Get_Encoder_Size( encSizeBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_Get_Encoder_Size returned %d, ret );}#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,### INIT Encoder encSizeBytes %d\n, encSizeBytes);#endifpsEnc malloc( encSizeBytes );/* Reset Encoder */ret SKP_Silk_SDK_InitEncoder( psEnc, encControl );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,\n!!!!!!!! SKP_Silk_SDK_InitEncoder returned %d, ret );}/* Set Encoder parameters */encControl.sampleRate fs_kHz * 1000;encControl.packetSize packetSize_ms * fs_kHz;encControl.packetLossPercentage packetLoss_perc;encControl.useInBandFEC INBandFec_enabled;encControl.useDTX DTX_enabled;encControl.complexity compression;encControl.bitRate targetRate_bps;return (jint)0;}void Print_Decode_Error_Msg(int errcode) {switch (errcode) {case SKP_SILK_DEC_WRONG_SAMPLING_FREQUENCY:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nOutput sampling frequency lower than internal decoded sampling frequency\n, errcode);break;case SKP_SILK_DEC_PAYLOAD_TOO_LARGE:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPayload size exceeded the maximum allowed 1024 bytes\n, errcode);break;case SKP_SILK_DEC_PAYLOAD_ERROR:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPayload has bit errors\n, errcode);break;}}void Print_Encode_Error_Msg(int errcode) {switch (errcode) {case SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInput length is not a multiplum of 10 ms, or length is longer than the packet length\n, errcode);break;case SKP_SILK_ENC_FS_NOT_SUPPORTED:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nSampling frequency not 8000, 12000, 16000 or 24000 Hertz \n, errcode);break;case SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nPacket size not 20, 40, 60, 80 or 100 ms\n, errcode);break;case SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nAllocated payload buffer too short \n, errcode);break;case SKP_SILK_ENC_WRONG_LOSS_RATE:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nLoss rate not between 0 and 100 percent\n, errcode);break;case SKP_SILK_ENC_WRONG_COMPLEXITY_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nComplexity setting not valid, use 0, 1 or 2\n, errcode);break;case SKP_SILK_ENC_WRONG_INBAND_FEC_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInband FEC setting not valid, use 0 or 1\n, errcode);break;case SKP_SILK_ENC_WRONG_DTX_SETTING:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nDTX setting not valid, use 0 or 1\n, errcode);break;case SKP_SILK_ENC_INTERNAL_ERROR:__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!!!!! Decode_Error_Message: %d\nInternal encoder error\n, errcode);break;}}extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK24_encode(JNIEnv *env, jobject obj, jshortArray lin, jint offset, jbyteArray encoded, jint size) {jbyte enc_payload[ MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES ];jshort in[ MAX_FRAME_LENGTH * MAX_INPUT_FRAMES ];int ret,i,frszMAX_FRAME;SKP_int16 nBytes;unsigned int lin_pos 0;if (!codec_open)return 0;#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding frame size: %d\toffset: %d\n, size, offset);#endiffor (i 0; i size; iMAX_FRAME) {#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding frame size: %d\toffset: %d i: %d\n, size, offset, i);#endifenv-GetShortArrayRegion(lin, offset i,frsz, in);/* max payload size */nBytes MAX_BYTES_ENC_PER_FRAME * MAX_INPUT_FRAMES;ret SKP_Silk_SDK_Encode( psEnc, encControl, in, (SKP_int16)frsz, (SKP_uint8 *)enc_payload, nBytes );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!! SKP_Silk_Encode returned: %d\n, ret);Print_Encode_Error_Msg(ret);break;}#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,Enocded nBytes: %d\n, nBytes);#endif/* Write payload */env-SetByteArrayRegion(encoded, RTP_HDR_SIZE lin_pos, nBytes, enc_payload);lin_pos nBytes;}#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,encoding **END** frame size: %d\toffset: %d i: %d lin_pos: %d\n, size, offset, i, lin_pos);#endifreturn (jint)lin_pos;}extern CJNIEXPORT jint JNICALL Java_com_trunkbow_silk_SILK24_decode(JNIEnv *env, jobject obj, jbyteArray encoded, jshortArray lin, jint size) {jbyte buffer [MAX_BYTES_DEC_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY 1 ) ];jshort output_buffer[( MAX_FRAME_LENGTH 1 ) * MAX_INPUT_FRAMES ];//SKP_int16*outPtr;int ret;SKP_int16 len;//inttot_len,frames;if (!codec_open)return 0;#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,##### BEGIN DECODE ******** decoding frame size: %d\n, size);#endifenv-GetByteArrayRegion(encoded, RTP_HDR_SIZE, size, buffer);//outPtr output_buffer;// tot_len 0;//frames 0;//do {ret SKP_Silk_SDK_Decode( psDec, DecControl, 0,(SKP_uint8 *) buffer, size, output_buffer,len );if( ret ) {__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,!!!!!!!! SKP_Silk_SDK_Decode returned: %d\n, ret);Print_Decode_Error_Msg(ret);}#ifdef DEBUG_SILK24__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,##### DECODED length: %d\n\t Frame #: %d, len);#endif//frames;//outPtr len;//tot_len len;//} while( DecControl.moreInternalDecoderFrames );env-SetShortArrayRegion(lin, 0, len,output_buffer);return (jint)len;}extern CJNIEXPORT void JNICALL Java_com_trunkbow_silk_SILK24_close(JNIEnv *env, jobject obj) {if (--codec_open ! 0)return;/* Free decoder */free( psDec );/* Free Encoder */free( psEnc );}6、在Java层创建Speex工具类内容如下Silk8.javaclass SILK8{/** | fs (Hz) | BR (kbps)* ----------------------------------* Narrowband | 8000 | 6 -20* Mediumband | 12000 | 7 -25* Wideband | 16000 | 8 -30* Super Wideband | 24000 | 12 -40** Table 1: fs specifies the audio sampling frequency in Hertz (Hz); BR* specifies the adaptive bit rate range in kilobits per second (kbps).** Complexity can be scaled to optimize for CPU resources in real-time,* mostly in trade-off to network bit rate. 0 is least CPU demanding and* highest bit rate.*/private static final int DEFAULT_COMPLEXITY 0;void load() {System.loadLibrary(silk8_jni);}public native int open(int compression);public native int decode(byte encoded[], short lin[], int size);public native int encode(short lin[], int offset, byte encoded[], int size);public native void close();}Silk16.javaclass SILK16 {/** | fs (Hz) | BR (kbps)* ----------------------------------* Narrowband | 8000 | 6 -20* Mediumband | 12000 | 7 -25* Wideband | 16000 | 8 -30* Super Wideband | 24000 | 12 -40** Table 1: fs specifies the audio sampling frequency in Hertz (Hz); BR* specifies the adaptive bit rate range in kilobits per second (kbps).** Complexity can be scaled to optimize for CPU resources in real-time,* mostly in trade-off to network bit rate. 0 is least CPU demanding and* highest bit rate.*/private static final int DEFAULT_COMPLEXITY 0;void load() {System.loadLibrary(silk16_jni);}public native int open(int compression);public native int decode(byte encoded[], short lin[], int size);public native int encode(short lin[], int offset, byte encoded[], int size);public native void close();}Silk24.javaclass SILK24 {/** | fs (Hz) | BR (kbps)* ----------------------------------* Narrowband | 8000 | 6 -20* Mediumband | 12000 | 7 -25* Wideband | 16000 | 8 -30* Super Wideband | 24000 | 12 -40** Table 1: fs specifies the audio sampling frequency in Hertz (Hz); BR* specifies the adaptive bit rate range in kilobits per second (kbps).** Complexity can be scaled to optimize for CPU resources in real-time,* mostly in trade-off to network bit rate. 0 is least CPU demanding and* highest bit rate.*/private static final int DEFAULT_COMPLEXITY 0;void load() {System.loadLibrary(silk24_jni);}public native int open(int compression);public native int decode(byte encoded[], short lin[], int size);public native int encode(short lin[], int offset, byte encoded[], int size);public native void close();}7、使用cygwin编译生成so文件。************************************************************************ 作者张兴业 ** 邮箱xy-zhang163.com ************************************************************************/*** author 张兴业* iOS入门群83702688* android开发进阶群241395671* 我的新浪微博*/************************************************************************ 作者张兴业 ** 邮箱xy-zhang#163.com ************************************************************************
