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RtmpH264.cpp
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// RtmpH264.cpp : 定义 DLL 应用程序的导出函数。
//
#include "stdafx.h"
#include "RtmpH264.h"
#include "objbase.h"
MP4FileHandle hMp4File;
MP4TrackId videoTrackId;
MP4TrackId audioTrackId;
char* audioConfig = NULL;
long audioConfigLen = 0;
void stream_stop(RTMPMOD_SPublishObj* psObj);
long InitMp4(char* fileName);
void CloseMp4File();
void WriteSpsPPs(int width, int height, int fps, int audiochannel, int audioSample, char* spsData, int spsLen, char* ppsData, int ppsLen);
x264_t * h = NULL;//对象句柄,
x264_picture_t m_picInput;//传入图像YUV
x264_picture_t m_picOutput;//输出图像RAW
x264_param_t param;//参数设置
unsigned int nSendCount = 0;
x264_nal_t* nal_t = NULL;
int i_nal = 0;
unsigned char *pps = 0;
int pps_len;
unsigned char * sps = 0;
int sps_len;
// Class constructor
RtmpH264::RtmpH264() : m_isCreatePublish(false),m_SwsContext(NULL)
{
rtmp_PublishObj.hEncoder = 0;
rtmp_PublishObj.nSampleRate = 0;
rtmp_PublishObj.nChannels = 0;
rtmp_PublishObj.nTimeDelta = 0;
rtmp_PublishObj.szPcmAudio = 0;
rtmp_PublishObj.nPcmAudioSize = 0;
rtmp_PublishObj.nPcmAudioLen = 0;
rtmp_PublishObj.szAacAudio = 0;
rtmp_PublishObj.nAacAudioSize = 0;
}
//创建推送连接
int RtmpH264::CreatePublish(char* url, int outChunkSize)
{
int rResult = 0;
rResult = RTMP264_Connect(url, &rtmp_PublishObj.rtmp);
if (rResult == 1)
{
m_isCreatePublish = true;
m_startTime = ::GetTickCount();
//修改发送分包的大小 默认128字节
RTMPPacket pack;
RTMPPacket_Alloc(&pack, 4);
pack.m_packetType = RTMP_PACKET_TYPE_CHUNK_SIZE;
pack.m_nChannel = 0x02;
pack.m_headerType = RTMP_PACKET_SIZE_LARGE;
pack.m_nTimeStamp = 0;
pack.m_nInfoField2 = 0;
pack.m_nBodySize = 4;
pack.m_body[3] = outChunkSize & 0xff; //大字节序
pack.m_body[2] = outChunkSize >> 8;
pack.m_body[1] = outChunkSize >> 16;
pack.m_body[0] = outChunkSize >> 24;
rtmp_PublishObj.rtmp->m_outChunkSize = outChunkSize;
RTMP_SendPacket(rtmp_PublishObj.rtmp,&pack,1);
RTMPPacket_Free(&pack);
}
return rResult;
}
//断开推送连接
void RtmpH264::DeletePublish()
{
rtmp_PublishObj.hEncoder = 0;
rtmp_PublishObj.nSampleRate = 0;
rtmp_PublishObj.nChannels = 0;
rtmp_PublishObj.nTimeDelta = 0;
rtmp_PublishObj.szPcmAudio = 0;
rtmp_PublishObj.nPcmAudioSize = 0;
rtmp_PublishObj.nPcmAudioLen = 0;
rtmp_PublishObj.szAacAudio = 0;
rtmp_PublishObj.nAacAudioSize = 0;
if (m_isCreatePublish)
{
RTMP264_Close();
}
m_isCreatePublish = false;
}
//初始化视频编码器
int RtmpH264::InitVideoParams(unsigned long width, unsigned long height, unsigned long fps, unsigned long bitrate, bool bConstantsBitrate = false)
{
m_width = width;//宽,根据实际情况改
m_height = height;//高
m_frameRate = fps;
m_bitRate = bitrate;
x264_param_default(¶m);//设置默认参数具体见common/common.c
//* 使用默认参数,在这里因为是实时网络传输,所以使用了zerolatency的选项,使用这个选项之后就不会有delayed_frames,如果使用的不是这样的话,还需要在编码完成之后得到缓存的编码帧
x264_param_default_preset(¶m, "veryfast", "zerolatency");
//* cpuFlags
param.i_threads = X264_SYNC_LOOKAHEAD_AUTO; /* 取空缓冲区继续使用不死锁的保证 */
param.i_sync_lookahead = X264_SYNC_LOOKAHEAD_AUTO;
//* 视频选项
param.i_width = m_width;
param.i_height = m_height;
param.i_frame_total = 0; //* 编码总帧数.不知道用0.
param.i_keyint_min = 5;//关键帧最小间隔
param.i_keyint_max = (int)fps*2;//关键帧最大间隔
param.b_annexb = 1;//1前面为0x00000001,0为nal长度
param.b_repeat_headers = 0;//关键帧前面是否放sps跟pps帧,0 否 1,放
//param.vui.i_sar_width = m_width;
//param.vui.i_sar_height = m_height;
param.i_csp = X264_CSP_I420;
//* B帧参数
param.i_bframe = 0; //B帧
param.b_open_gop = 0;
param.i_bframe_pyramid = 0;
param.i_bframe_adaptive = X264_B_ADAPT_FAST;
//* 速率控制参数
param.rc.i_lookahead = 0;
param.rc.i_bitrate = (int)m_bitRate; //* 码率(比特率,单位Kbps)
if(bConstantsBitrate)
{
param.rc.f_rf_constant = 10; //rc.f_rf_constant是实际质量,越大图像越花,越小越清晰。
param.rc.f_rf_constant_max = 35;
param.rc.i_rc_method = X264_RC_ABR;//参数i_rc_method表示码率控制,CQP(恒定质量),CRF(恒定码率),ABR(平均码率)
param.rc.i_vbv_max_bitrate = (int)m_bitRate*1.1; // 平均码率模式下,最大瞬时码率,默认0(与-B设置相同)
}
else
{
param.rc.b_filler = 1;
param.rc.f_rf_constant = 0.0f;; //rc.f_rf_constant是实际质量,越大图像越花,越小越清晰。
param.rc.i_rc_method = X264_RC_ABR;//参数i_rc_method表示码率控制,CQP(恒定质量),CRF(恒定码率),ABR(平均码率)
param.rc.i_vbv_max_bitrate = m_bitRate; // 平均码率模式下,最大瞬时码率,默认0(与-B设置相同)
param.rc.i_vbv_buffer_size = m_bitRate; //vbv-bufsize
}
//* muxing parameters
param.i_fps_den = 1; // 帧率分母
param.i_fps_num = fps;// 帧率分子
param.i_timebase_num = 1;
param.i_timebase_den = 1000;
h = x264_encoder_open(¶m);//根据参数初始化X264级别
x264_picture_init(&m_picOutput);//初始化图片信息
x264_picture_alloc(&m_picInput, X264_CSP_I420, m_width, m_height);//图片按I420格式分配空间,最后要x264_picture_clean
i_nal = 0;
x264_encoder_headers(h, &nal_t, &i_nal);
if (i_nal > 0)
{
for (int i = 0; i < i_nal; i++)
{
//获取SPS数据,PPS数据
if (nal_t[i].i_type == NAL_SPS)
{
sps = new unsigned char[nal_t[i].i_payload - 4];
sps_len = nal_t[i].i_payload - 4;
memcpy(sps, nal_t[i].p_payload + 4, nal_t[i].i_payload - 4);
}
else if (nal_t[i].i_type == NAL_PPS)
{
pps = new unsigned char[nal_t[i].i_payload - 4];;
pps_len = nal_t[i].i_payload - 4;
memcpy(pps, nal_t[i].p_payload + 4, nal_t[i].i_payload - 4);
}
}
InitSpsPps(pps, pps_len, sps, sps_len, m_width, m_height, m_frameRate);
m_SwsContext= sws_getContext(m_width, m_height, AV_PIX_FMT_BGR24, m_width, m_height, AV_PIX_FMT_YUV420P, SWS_BILINEAR, NULL, NULL, NULL);
return 1;
}
return 0;
}
//释放编码器内存
void RtmpH264::FreeEncodeParams()
{
if (pps)
{
delete[] pps;
pps = NULL;
}
if (sps)
{
delete[] sps;
sps = NULL;
}
if(h)
{
x264_encoder_close(h);
h = NULL;
}
if(m_SwsContext)
{
sws_freeContext(m_SwsContext);
m_SwsContext = NULL;
}
stream_stop(&rtmp_PublishObj);
}
//图片编码发送
int RtmpH264::SendScreenCapture(BYTE * frame, unsigned long Stride, unsigned long StrideHeight, unsigned long timespan)
{
int nDataLen = Stride * StrideHeight;
uint8_t * rgb_buff = new uint8_t[nDataLen];
memcpy(rgb_buff, frame, nDataLen);
//下面的位图转完是倒立的
uint8_t *rgb_src[3]= {rgb_buff, NULL, NULL};
int rgb_stride[3]={Stride, 0, 0};
sws_scale(m_SwsContext, rgb_src, rgb_stride, 0, m_height, m_picInput.img.plane, m_picInput.img.i_stride);
delete[] rgb_buff;
i_nal = 0;
x264_encoder_encode(h, &nal_t, &i_nal, &m_picInput, &m_picOutput);
m_picInput.i_pts++;//少这句的话会出现 x264 [warning]: non-strictly-monotonic PTS
int rResult = 5;
for (int i = 0; i < i_nal; i++)
{
int bKeyFrame = 0;
//获取帧数据
if (nal_t[i].i_type == NAL_SLICE || nal_t[i].i_type == NAL_SLICE_IDR)
{
if (nal_t[i].i_type == NAL_SLICE_IDR)
bKeyFrame = 1;
rResult = SendH264Packet(nal_t[i].p_payload + 4, nal_t[i].i_payload - 4, bKeyFrame, timespan);
}
}
return rResult;
}
//初始化视频编码器
int RtmpH264::WriteVideoParams(unsigned long width, unsigned long height, unsigned long fps, unsigned long bitrate)
{
m_width = width;//宽,根据实际情况改
m_height = height;//高
m_frameRate = fps;
m_bitRate = bitrate;
int yuvsize = m_height*m_width * 3 / 2;
x264_param_default(¶m);//设置默认参数具体见common/common.c
//* 使用默认参数,在这里因为我的是实时网络传输,所以我使用了zerolatency的选项,使用这个选项之后就不会有delayed_frames,如果你使用的不是这样的话,还需要在编码完成之后得到缓存的编码帧
x264_param_default_preset(¶m, "veryfast", "zerolatency");
//* cpuFlags
param.i_threads = X264_SYNC_LOOKAHEAD_AUTO;//* 取空缓冲区继续使用不死锁的保证.
//* 视频选项
param.i_width = m_width;
param.i_height = m_height;
param.i_frame_total = 0; //* 编码总帧数.不知道用0.
param.i_keyint_min = 0;//关键帧最小间隔
param.i_keyint_max = fps;//关键帧最大间隔
param.b_annexb = 1;//1前面为0x00000001,0为nal长度
param.b_repeat_headers = 0;//关键帧前面是否放sps跟pps帧,0 否 1,放
//param.vui.i_sar_width = m_width;
//param.vui.i_sar_height = m_height;
param.i_csp = X264_CSP_I420;
//* 流参数
param.i_bframe = 0; //B帧
param.b_open_gop = 0;
param.i_bframe_pyramid = 0;
param.i_bframe_adaptive = X264_B_ADAPT_FAST;
//* 速率控制参数
param.rc.i_lookahead = 0;
param.rc.i_bitrate = bitrate; //* 码率(比特率,单位Kbps)
param.rc.f_rf_constant = 5; //rc.f_rf_constant是实际质量,越大图像越花,越小越清晰。
param.rc.f_rf_constant_max = 25;
param.rc.i_rc_method = X264_RC_ABR;//参数i_rc_method表示码率控制,CQP(恒定质量),CRF(恒定码率),ABR(平均码率)
param.rc.i_vbv_max_bitrate = (int)(m_bitRate*1.2); // 平均码率模式下,最大瞬时码率,默认0(与-B设置相同)
param.rc.i_bitrate = (int)m_bitRate;
//* muxing parameters
param.i_fps_den = 1; // 帧率分母
param.i_fps_num = fps;// 帧率分子
param.i_timebase_num = 1;
param.i_timebase_den = 1000;
//* 设置Profile.使用Baseline profile
//x264_param_apply_profile(¶m, x264_profile_names[0]);
h = x264_encoder_open(¶m);//根据参数初始化X264级别
x264_picture_init(&m_picOutput);//初始化图片信息
//x264_picture_init(&m_picInput);//初始化图片信息
x264_picture_alloc(&m_picInput, X264_CSP_I420, m_width, m_height);//图片按I420格式分配空间,最后要x264_picture_clean
i_nal = 0;
x264_encoder_headers(h, &nal_t, &i_nal);
if (i_nal > 0)
{
for (int i = 0; i < i_nal; i++)
{
//获取SPS数据,PPS数据
if (nal_t[i].i_type == NAL_SPS)
{
sps = new unsigned char[nal_t[i].i_payload - 4];
sps_len = nal_t[i].i_payload - 4;
memcpy(sps, nal_t[i].p_payload + 4, nal_t[i].i_payload - 4);
}
else if (nal_t[i].i_type == NAL_PPS)
{
pps = new unsigned char[nal_t[i].i_payload - 4];;
pps_len = nal_t[i].i_payload - 4;
memcpy(pps, nal_t[i].p_payload + 4, nal_t[i].i_payload - 4);
}
}
WriteSpsPPs(m_width, m_height, m_frameRate, m_audioChannel, m_audioSample, (char*)sps, sps_len, (char*)pps, pps_len);
m_SwsContext= sws_getContext(m_width, m_height, AV_PIX_FMT_BGR24, m_width, m_height, AV_PIX_FMT_YUV420P, SWS_BILINEAR, NULL, NULL, NULL);
return 1;
}
return 0;
}
unsigned long lastFrameTime = 0;
//图片编码发送
int RtmpH264::WriteScreenCapture(BYTE * frame, unsigned long Stride, unsigned long StrideHeight, unsigned long timespan)
{
int nDataLen = Stride * StrideHeight;
uint8_t * rgb_buff = new uint8_t[nDataLen];
memcpy(rgb_buff, frame, nDataLen);
//下面的位图转完是倒立的
uint8_t *rgb_src[3]= {rgb_buff, NULL, NULL};
int rgb_stride[3]={3*m_width, 0, 0};
sws_scale(m_SwsContext, rgb_src, rgb_stride, 0, m_height, m_picInput.img.plane, m_picInput.img.i_stride);
delete[] rgb_buff;
i_nal = 0;
x264_encoder_encode(h, &nal_t, &i_nal, &m_picInput, &m_picOutput);
//少这句的话会出现 x264 [warning]: non-strictly-monotonic PTS
m_picInput.i_pts++;
unsigned long durationTime = (timespan - lastFrameTime)*90;
lastFrameTime = timespan;
int rResult = 5;
for (int i = 0; i < i_nal; i++)
{
int bKeyFrame = 0;
//获取帧数据
if (nal_t[i].i_type == NAL_SLICE || nal_t[i].i_type == NAL_SLICE_IDR)
{
if (nal_t[i].i_type == NAL_SLICE_IDR)
bKeyFrame = 1;
uint32_t* p = (uint32_t*) nal_t[i].p_payload;
*p = htonl(nal_t[i].i_payload - 4);//大端,去掉头部四个字节
if(MP4WriteSample(hMp4File, videoTrackId, (uint8_t *)nal_t[i].p_payload, nal_t[i].i_payload, durationTime, 0, 1))
rResult = 1;
else
rResult = 0;
}
}
return rResult;
}
#define EB_MAX(a,b) (((a) > (b)) ? (a) : (b))
#define EB_MIN(a,b) (((a) < (b)) ? (a) : (b))
#define PCM_BITSIZE 2
//停止音频编码
void stream_stop(RTMPMOD_SPublishObj* psObj)
{
int nRet;
if (psObj->hEncoder)
{
while (1)
{
nRet = faacEncEncode(psObj->hEncoder, 0, 0, (unsigned char*)(psObj->szAacAudio + RTMP_MAX_HEADER_SIZE + 2), psObj->nAacAudioSize - RTMP_MAX_HEADER_SIZE - 2);
if (0 == nRet) break;
}
nRet = faacEncClose(psObj->hEncoder);
}
if (psObj->szPcmAudio)
{
free(psObj->szPcmAudio);
}
if (psObj->szAacAudio)
{
free(psObj->szAacAudio);
}
psObj->hEncoder = 0;
psObj->nSampleRate = 0;
psObj->nChannels = 0;
psObj->nTimeDelta = 0;
psObj->szPcmAudio = 0;
psObj->nPcmAudioSize = 0;
psObj->nPcmAudioLen = 0;
psObj->szAacAudio = 0;
psObj->nAacAudioSize = 0;
}
//初始化音频编码器
bool stream_init(RTMPMOD_SPublishObj* psObj, unsigned long nSampleRate, unsigned long nChannels)
{
faacEncConfigurationPtr pConfiguration;
unsigned long nInputSamples;
unsigned long nMaxOutputBytes;
int nRet;
char* szPcmAudio;
unsigned long nPcmAudioSize;
char* szAacAudio;
unsigned long nAacAudioSize;
unsigned char * buf;
unsigned long len;
// skip
if ((psObj->hEncoder) && (nSampleRate == psObj->nSampleRate) && (nChannels == psObj->nChannels))
{
return true;
}
// close
stream_stop(psObj);
// open FAAC engine
faacEncHandle hEncoder = faacEncOpen(nSampleRate, nChannels, &nInputSamples, &nMaxOutputBytes);
if (hEncoder == NULL)
{
//assert(0);
return false;
}
// set encoding configuration
pConfiguration = faacEncGetCurrentConfiguration(hEncoder);
pConfiguration->aacObjectType = LOW;
pConfiguration->bitRate = 32000;
pConfiguration->mpegVersion = MPEG4;
pConfiguration->allowMidside = 0;
pConfiguration->useTns = 0;
pConfiguration->useLfe = 0;
pConfiguration->bandWidth = 0;
pConfiguration->quantqual = 100;
pConfiguration->outputFormat = 0;
pConfiguration->inputFormat = (PCM_BITSIZE == 2) ? FAAC_INPUT_16BIT : FAAC_INPUT_32BIT;
pConfiguration->shortctl = SHORTCTL_NORMAL;
nRet = faacEncSetConfiguration(hEncoder, pConfiguration);
if (!nRet)
{
//assert(0);
nRet = faacEncClose(hEncoder);
return false;
}
// buffer
nPcmAudioSize = nInputSamples * PCM_BITSIZE * nChannels;
szPcmAudio = (char*)malloc(nPcmAudioSize);
nAacAudioSize = nMaxOutputBytes + RTMP_MAX_HEADER_SIZE + 2;
szAacAudio = (char*)malloc(nAacAudioSize);
if ((!szPcmAudio) || (!szAacAudio))
{
nRet = faacEncClose(hEncoder);
if (szPcmAudio)
{
free(szPcmAudio);
}
if (szAacAudio)
{
free(szAacAudio);
}
//assert(0);
return false;
}
// success
psObj->hEncoder = hEncoder;
psObj->nSampleRate = nSampleRate;
psObj->nChannels = nChannels;
psObj->nTimeDelta = (nInputSamples * 1000 / nSampleRate);
psObj->szPcmAudio = szPcmAudio;
psObj->nPcmAudioSize = nPcmAudioSize;
psObj->nPcmAudioLen = 0;
psObj->szAacAudio = szAacAudio;
psObj->nAacAudioSize = nAacAudioSize;
// send aac header
faacEncGetDecoderSpecificInfo(hEncoder, &buf, &len);
memcpy(psObj->szAacAudio + RTMP_MAX_HEADER_SIZE + 2, buf, len);
len += 2;
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 0] = (char)0xAF;
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 1] = (char)0x00;
psObj->packet.m_headerType = RTMP_PACKET_SIZE_LARGE;
psObj->packet.m_packetType = RTMP_PACKET_TYPE_AUDIO;
psObj->packet.m_hasAbsTimestamp = 0;
psObj->packet.m_nChannel = 0x04;
psObj->packet.m_nTimeStamp = psObj->nTimeStamp;
psObj->packet.m_nInfoField2 = psObj->rtmp->m_stream_id;
psObj->packet.m_nBodySize = len;
psObj->packet.m_body = psObj->szAacAudio + RTMP_MAX_HEADER_SIZE;
psObj->packet.m_nBytesRead = 0;
// send packet
//assert(psObj->rtmp);
RTMP_SendPacket(psObj->rtmp, &psObj->packet, true);
// success
return true;
}
//初始化音频编码器
bool write_stream_init(RTMPMOD_SPublishObj* psObj, unsigned long nSampleRate, unsigned long nChannels)
{
faacEncConfigurationPtr pConfiguration;
unsigned long nInputSamples;
unsigned long nMaxOutputBytes;
int nRet;
char* szPcmAudio;
unsigned long nPcmAudioSize;
char* szAacAudio;
unsigned long nAacAudioSize;
unsigned char * buf;
unsigned long len;
// skip
if ((psObj->hEncoder) && (nSampleRate == psObj->nSampleRate) && (nChannels == psObj->nChannels))
{
return true;
}
// close
stream_stop(psObj);
// open FAAC engine
faacEncHandle hEncoder = faacEncOpen(nSampleRate, nChannels, &nInputSamples, &nMaxOutputBytes);
if (hEncoder == NULL)
{
//assert(0);
return false;
}
// set encoding configuration
pConfiguration = faacEncGetCurrentConfiguration(hEncoder);
pConfiguration->aacObjectType = LOW;
pConfiguration->bitRate = 32000;
pConfiguration->mpegVersion = MPEG4;
pConfiguration->allowMidside = 0;
pConfiguration->useTns = 0;
pConfiguration->useLfe = 0;
pConfiguration->bandWidth = 0;
pConfiguration->quantqual = 100;
pConfiguration->outputFormat = 0;
pConfiguration->inputFormat = (PCM_BITSIZE == 2) ? FAAC_INPUT_16BIT : FAAC_INPUT_32BIT;
pConfiguration->shortctl = SHORTCTL_NORMAL;
nRet = faacEncSetConfiguration(hEncoder, pConfiguration);
if (!nRet)
{
//assert(0);
nRet = faacEncClose(hEncoder);
return false;
}
// buffer
nPcmAudioSize = nInputSamples * PCM_BITSIZE * nChannels;
szPcmAudio = (char*)malloc(nPcmAudioSize);
nAacAudioSize = nMaxOutputBytes + RTMP_MAX_HEADER_SIZE + 2;
szAacAudio = (char*)malloc(nAacAudioSize);
if ((!szPcmAudio) || (!szAacAudio))
{
nRet = faacEncClose(hEncoder);
if (szPcmAudio)
{
free(szPcmAudio);
}
if (szAacAudio)
{
free(szAacAudio);
}
//assert(0);
return false;
}
// success
psObj->hEncoder = hEncoder;
psObj->nSampleRate = nSampleRate;
psObj->nChannels = nChannels;
psObj->nTimeDelta = (nInputSamples * 1000 / nSampleRate);
psObj->szPcmAudio = szPcmAudio;
psObj->nPcmAudioSize = nPcmAudioSize;
psObj->nPcmAudioLen = 0;
psObj->szAacAudio = szAacAudio;
psObj->nAacAudioSize = nAacAudioSize;
// send aac header
faacEncGetDecoderSpecificInfo(hEncoder, &buf, &len);
if (audioConfig)
{
free(audioConfig);
audioConfig = NULL;
}
audioConfig = new char[len];
memcpy(audioConfig, buf, len);
audioConfigLen = len;
memcpy(psObj->szAacAudio + RTMP_MAX_HEADER_SIZE + 2, buf, len);
len += 2;
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 0] = (char)0xAF;
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 1] = (char)0x00;
psObj->packet.m_headerType = RTMP_PACKET_SIZE_LARGE;
psObj->packet.m_packetType = RTMP_PACKET_TYPE_AUDIO;
psObj->packet.m_hasAbsTimestamp = 0;
psObj->packet.m_nChannel = 0x04;
psObj->packet.m_nTimeStamp = psObj->nTimeStamp;
//psObj->packet.m_nInfoField2 = psObj->rtmp->m_stream_id;
psObj->packet.m_nBodySize = len;
psObj->packet.m_body = psObj->szAacAudio + RTMP_MAX_HEADER_SIZE;
psObj->packet.m_nBytesRead = 0;
// send packet
//assert(psObj->rtmp);
// success
return true;
}
//编码后发送音频数据
long RTMPMOD_PublishSendAudio(RTMPMOD_SPublishObj* hObj, char* szBuf, unsigned long nBufLen, unsigned long nSampleRate, unsigned long nChannels, unsigned long timespan)
{
RTMPMOD_SPublishObj* psObj = (RTMPMOD_SPublishObj*)hObj;
unsigned long nDone = 0;
unsigned long nCopy;
int nRet;
// check
if ((!psObj) || (!szBuf) || (!nBufLen) || (!nSampleRate) || ((1 != nChannels) && (2 != nChannels)))
{
return 0;
}
// init
if (!psObj->rtmp)
{
return 0;
}
if (!stream_init(psObj, nSampleRate, nChannels))
{
return 0;
}
// encode and send
while (nDone < nBufLen)
{
// copy
nCopy = EB_MIN((nBufLen - nDone), (psObj->nPcmAudioSize - psObj->nPcmAudioLen));
memcpy(psObj->szPcmAudio + psObj->nPcmAudioLen, szBuf + nDone, nCopy);
nDone += nCopy;
psObj->nPcmAudioLen += nCopy;
// ready
if (psObj->nPcmAudioLen == psObj->nPcmAudioSize)
{
// encode
nRet = faacEncEncode(psObj->hEncoder, (int*)psObj->szPcmAudio, (psObj->nPcmAudioSize / PCM_BITSIZE) / psObj->nChannels,
(unsigned char*)(psObj->szAacAudio + RTMP_MAX_HEADER_SIZE + 2), psObj->nAacAudioSize - RTMP_MAX_HEADER_SIZE - 2);
psObj->nPcmAudioLen = 0;
if (nRet <= 0)
{
continue;
}
psObj->nTimeStamp = timespan;
//psObj->nTimeStamp += psObj->nTimeDelta;
// packet
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 0] = (char)0xAF;
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 1] = (char)0x01;
psObj->packet.m_headerType = RTMP_PACKET_SIZE_MEDIUM;
psObj->packet.m_packetType = RTMP_PACKET_TYPE_AUDIO;
psObj->packet.m_hasAbsTimestamp = 0;
psObj->packet.m_nChannel = 0x04;
psObj->packet.m_nTimeStamp = psObj->nTimeStamp;
psObj->packet.m_nInfoField2 = psObj->rtmp->m_stream_id;
psObj->packet.m_nBodySize = nRet + 2;
psObj->packet.m_body = psObj->szAacAudio + RTMP_MAX_HEADER_SIZE;
psObj->packet.m_nBytesRead = 0;
// send packet
if (!RTMP_SendPacket(psObj->rtmp, &psObj->packet, true))
{
return 0;
}
}
}
// success
return 1;
}
long RTMPMOD_WriteSendAudio(RTMPMOD_SPublishObj* hObj, char* szBuf, unsigned long nBufLen, unsigned long nSampleRate, unsigned long nChannels, unsigned long timespan)
{
RTMPMOD_SPublishObj* psObj = (RTMPMOD_SPublishObj*)hObj;
unsigned long nDone = 0;
unsigned long nCopy;
int nRet;
int nResult;
// check
if ((!psObj) || (!szBuf) || (!nBufLen) || (!nSampleRate) || ((1 != nChannels) && (2 != nChannels)))
{
return 0;
}
// init
if (!write_stream_init(psObj, nSampleRate, nChannels))
{
return 0;
}
// encode and send
while (nDone < nBufLen)
{
// copy
nCopy = EB_MIN((nBufLen - nDone), (psObj->nPcmAudioSize - psObj->nPcmAudioLen));
memcpy(psObj->szPcmAudio + psObj->nPcmAudioLen, szBuf + nDone, nCopy);
nDone += nCopy;
psObj->nPcmAudioLen += nCopy;
// ready
if (psObj->nPcmAudioLen == psObj->nPcmAudioSize)
{
// encode
nRet = faacEncEncode(psObj->hEncoder, (int*)psObj->szPcmAudio, (psObj->nPcmAudioSize / PCM_BITSIZE) / psObj->nChannels,
(unsigned char*)(psObj->szAacAudio + RTMP_MAX_HEADER_SIZE + 2), psObj->nAacAudioSize - RTMP_MAX_HEADER_SIZE - 2);
psObj->nPcmAudioLen = 0;
if (nRet <= 0)
{
continue;
}
psObj->nTimeStamp = timespan;
//psObj->nTimeStamp += psObj->nTimeDelta;
// packet
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 0] = (char)0xAF;
psObj->szAacAudio[RTMP_MAX_HEADER_SIZE + 1] = (char)0x01;
psObj->packet.m_headerType = RTMP_PACKET_SIZE_MEDIUM;
psObj->packet.m_packetType = RTMP_PACKET_TYPE_AUDIO;
psObj->packet.m_hasAbsTimestamp = 0;
psObj->packet.m_nChannel = 0x04;
psObj->packet.m_nTimeStamp = psObj->nTimeStamp;
//psObj->packet.m_nInfoField2 = psObj->rtmp->m_stream_id;
psObj->packet.m_nBodySize = nRet + 2;
psObj->packet.m_body = psObj->szAacAudio + RTMP_MAX_HEADER_SIZE;
psObj->packet.m_nBytesRead = 0;
if(MP4WriteSample(hMp4File, audioTrackId, (uint8_t *)(psObj->szAacAudio + RTMP_MAX_HEADER_SIZE + 2), nRet, MP4_INVALID_DURATION, 0, 1))
nResult = 1;
else
nResult = 0;
}
}
// success
return nResult;
}
RtmpH264* pRtmpH264 = NULL;
//创建推送流连接
long RTMP_CreatePublish(char* url,unsigned long outChunkSize)
{
int nResult = -1;
if (pRtmpH264)
{
pRtmpH264->FreeEncodeParams();
pRtmpH264->DeletePublish();
delete pRtmpH264;
}
pRtmpH264 = new RtmpH264();
nResult = pRtmpH264->CreatePublish(url, (int)outChunkSize);
if (nResult != 1)
pRtmpH264->m_isCreatePublish = false;
return nResult;
}
//断开推送流
void RTMP_DeletePublish()
{
if (pRtmpH264)
{
pRtmpH264->FreeEncodeParams();
pRtmpH264->DeletePublish();
delete pRtmpH264;
}
pRtmpH264 = NULL;
}
//初始化编码器
long RTMP_InitVideoParams(unsigned long width, unsigned long height, unsigned long fps, unsigned long bitrate, bool bConstantsBitrate)
{
int nResult = -1;
if (!pRtmpH264)
{
return -1;
}
__try
{
nResult = pRtmpH264->InitVideoParams(width, height, fps, bitrate, bConstantsBitrate);
}
__except( EXCEPTION_EXECUTE_HANDLER )
{
nResult = -1;
pRtmpH264->m_isCreatePublish = false;
RTMP_DeletePublish();
throw(-1);
}
if (nResult != 1)
{
pRtmpH264->m_isCreatePublish = false;
RTMP_DeletePublish();
}
return nResult;
}
//发送截图 对截图进行x264编码
long RTMP_SendScreenCapture(char * frame, unsigned long Stride, unsigned long Height, unsigned long timespan)
{
int nResult = -1;
if (!pRtmpH264)
{
return -1;
}
__try
{
if (!pRtmpH264->m_isCreatePublish)
return -1;
nResult = pRtmpH264->SendScreenCapture((BYTE *)frame, Stride, Height, timespan);
}
__except( EXCEPTION_EXECUTE_HANDLER )
{
nResult = -1;
pRtmpH264->m_isCreatePublish = false;
RTMP_DeletePublish();
throw(-1);
}
if (nResult != 1)
{
pRtmpH264->m_isCreatePublish = false;
RTMP_DeletePublish();
}
return nResult;
}
//发送音频数据 原始数据为PCM
long RTMP_SendAudioFrame(char* szBuf, unsigned long nBufLen, unsigned long nSampleRate, unsigned long nChannels, unsigned long timespan)
{
int nResult = -1;
if (!pRtmpH264)
{
return -1;
}
__try
{
if (!pRtmpH264->m_isCreatePublish)
return -1;
nResult = RTMPMOD_PublishSendAudio(&pRtmpH264->rtmp_PublishObj, szBuf, nBufLen, nSampleRate, nChannels, timespan);
}
__except( EXCEPTION_EXECUTE_HANDLER )
{
nResult = -1;
pRtmpH264->m_isCreatePublish = false;
RTMP_DeletePublish();
throw(-1);
}
if (nResult != 1)
{
pRtmpH264->m_isCreatePublish = false;
RTMP_DeletePublish();
}
return nResult;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
///
///
/////////////////////////////////////////////////////////////////////////////////////////////////////
// 创建文件 成功返回0, 失败返回1
long InitMp4(char* fileName)
{
hMp4File = MP4CreateEx(fileName, /*MP4_DETAILS_ALL*/MP4_CREATE_64BIT_DATA);//创建mp4文件
if (hMp4File == MP4_INVALID_FILE_HANDLE)
{
printf("open file fialed.\n");
return 1;
}
return 0;
}
void WriteSpsPPs(int width, int height, int fps, int audiochannel, int audioSample, char* spsData, int spsLen, char* ppsData, int ppsLen)
{
MP4SetTimeScale(hMp4File, 90000);
//添加h264 track
videoTrackId = MP4AddH264VideoTrack(hMp4File, 90000, MP4_INVALID_DURATION, width, height,
spsData[1], //sps[1] AVCProfileIndication
spsData[2], //sps[2] profile_compat
spsData[3], //sps[3] AVCLevelIndication
3); // 4 bytes length before each NAL unit
if (videoTrackId == MP4_INVALID_TRACK_ID)
{
printf("add video track failed.\n");
return;
}
MP4SetVideoProfileLevel(hMp4File, 0x7f);
//添加aac音频