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进入RTSP状态时启动RTSP线程。

RTSP状态分三个阶段：

第一阶段进行初始化，主要完成socket连接，

1. 启动RTSP线程：

1.1 连接TX的RTSP server，默认端口号7236（TCP）；

1.2 设置RTP过滤器参数（IP和Port），默认端口号24030（UDP）；

1.3 创建I2C server socket，监听的默认端口号23030（TCP），启动I2C线程；

1.4 创建HDCP2 server socket，监听的默认端口号25030（TCP），启动HDCP线程；

2. RTSP数据交互。

第二阶段中，经过几次RTSP交互，trigger SETUP事件，SETUP做这几件事，

1. 创建RTP socket，启动RTP线程；

2. 初始化Kernel RTP；

1.1 通过/dev/xxx获取共享内存的物理地址；

1.2 通过mmap将物理地址映射到线程的虚拟地址空间；

1.3 将物理地址设置给Media Player的播放路径；

3. Start Media Player；

Media Client

main()

system_init()

system_ipc = new RT_MediaConfig()

system_ipc->initCheck()

m_ipc.createConnection() // Unix Socket: /tmp/MediaPlayRequest

xSendCmd(CMD_CONFIG_CONNECTION)

set_HDMI_display()

VoutUtil *voutUtil = &VoutUtil::instance(true)

mInstance = new VoutUtil(bNeedInitRPC) // VoutUtil.cpp

initRPC()

AUDIO_AGENT_0_register(rnode)

ipc_register(AUDIO_AGENT_0)

ReplyHandler_register(rnode)

ipc_register(Reply_Handler)

initRPCProxy(rnode)

openRPC() // read: rpc2 rpc3 rpc6 rpc7

openStubRPC() // write: rpc0 rpc1 rpc4 rpc5

for(registerRPC())

for(pthread_create(RPCProxy_loop())) // x3

MediaPlayerCreate()

g_MediaPlayer= new RTMediaPlayer(false)

g_MediaPlayer->initCheck()

rtp_InitKernelRtp(g_MediaPlayer)

open("/dev/mcp_core")

open("/dev/mem")

init_and_kmap()

fopen("/proc/aeiudp")

MediaPlayerDataSourceSet(g_MediaPlayer)

g_MediaPlayer->setDataSource(g_mplayer_path)

MediaFlowInit()

g_MediaPlayer->prepare()

class RTMediaPlayer

setDataSource()

m_ipc.createConnection() // Unix Socket: /tmp/MediaPlayRequest

pthread_create(procEntry)

pthread_create(workerProcEntry)

mListener = new RTMediaPlayerEventListener

mRvsd = new RVSD(m_rvsdID)

init(handle)

pRvsdInfo = new RVSD_INFO(handle)

mVDecRtk(NULL)

mRvsd->setListener(mListener)

mRvsd->start() // rvsd_entry.cpp

rvsd_run() // rvsd_maincore.cpp

pthread_create(rvsd_thread)

socket_main()

ipc_handler()

server_sockfd = socket(/tmp/rvsdsocket)

while(...)

select(server_sockfd )

client_sockfd = accept()

rvsd_handle_InBandCMD() // rvsd_InBandCMD.cpp

rvsd_thread线程创建服务器socket，如果有client来连接，调用rvsd_handle_InBandCMD()与这个socket交互。这里client是DvdPlayer。

在rvsd_handle_InBandCMD()中会创建VDec_Rtk_decode_pthread线程，即VDec_decode_loop()函数。

rvsd_handle_InBandCMD()

rvsdRingBuffer_init() // Malloc Ring Buffer

while (1)

poll(client_sockfd)

check_create_codec_handler()

rvsd_create_codec_handler()

pRvsdInfo->mVDecRtk = new VDecRtk)

pthread_create( VDec_Rtk_decode_pthread)

VDec_decode_loop() // rvsd_VDecRtk.cpp

mIonFd = ion_open()

recv(client_sockfd)

switch()

case ENUM_IPC_RVSD_VIDEO_INIT: // rvsd_video_init

case ENUM_IPC_RVSD_VIDEO_REF_CLOCK: //get RefClock

case ENUM_IPC_RVSD_VIDEO_FLUSH: //AGENT_FLUSH

case ENUM_IPC_RVSD_VIDEO_PAUSE: //AGENT_PAUSE

case ENUM_IPC_RVSD_VIDEO_RUN: //AGENT_RUN

case ENUM_IPC_RVSD_VIDEO_PRIVATE_INFO: //Get Video PrivateInfo

case ENUM_IPC_RVSD_VIDEO_ERROR_CONCEALMENT: //SetErrConcealment

case ENUM_IPC_RVSD_VIDEO_GET_SEQUENCE_INFO: // GetVideoSequenceInfo

case ENUM_IPC_RVSD_VIDEO_VO_INSTANCE_ID://receive VO instance ID from Dvdplayer

case ENUM_IPC_RVSD_VIDEO_STOP: //AGENT_STOP

case ENUM_IPC_RVSD_VIDEO_DESTROY: //AGENT_DESTROY

RVSD CMD

Boot

28 VO_INSTANCE_ID
50 SP_CREATE
21 VIDEO_BS_HANDLER
21 VIDEO_BS_HANDLER
5d VIDEO_INIT_MPEG2_CC_RING_BUF
51 SP_INIT_RING_BUF
57 SP_ENABLE
16 VIDEO_INIT
5a SP_CONFIG
57 SP_ENABLE
27 VIDEO_GET_SEQUENCE_INFO

First

54 SP_PAUSE
24 VIDEO_PAUSE
34 VIDEO_ERROR_CONCEALMENT
34 VIDEO_ERROR_CONCEALMENT
20 VIDEO_REF_CLOCK
55 SP_RUN
25 VIDEO_RUN
56 SP_FLUSH
23 VIDEO_FLUSH
34 VIDEO_ERROR_CONCEALMENT
56 SP_FLUSH
23 VIDEO_FLUSH
16 VIDEO_INIT
34 VIDEO_ERROR_CONCEALMENT
33 VIDEO_PRIVATE_INFO
56 SP_FLUSH
23 VIDEO_FLUSH
34 VIDEO_ERROR_CONCEALMENT
27 VIDEO_GET_SEQUENCE_INFO

Disconnect

33 VIDEO_PRIVATE_INFO
27 VIDEO_GET_SEQUENCE_INFO
26 VIDEO_SEEK
54 SP_PAUSE
24 VIDEO_PAUSE
53 SP_STOP
29 VIDEO_STOP

Persistent/First

54 SP_PAUSE
24 VIDEO_PAUSE
34 VIDEO_ERROR_CONCEALMENT
34 VIDEO_ERROR_CONCEALMENT
20 VIDEO_REF_CLOCK
56 SP_FLUSH
55 SP_RUN
25 VIDEO_RUN
23 VIDEO_FLUSH
34 VIDEO_ERROR_CONCEALMENT
33 VIDEO_PRIVATE_INFO

Disconnect

33 VIDEO_PRIVATE_INFO
54 SP_PAUSE
24 VIDEO_PAUSE
53 SP_STOP
29 VIDEO_STOP

End

Media Server

main()

system_init()

firmware_init_No_R_PROGRAM()

AUDIO_AGENT_0_register(rnode)

ReplyHandler_register(rnode)

initRPCProxy(rnode)

openRPC()

openStubRPC()

for(registerRPC())

for(pthread_create(RPCProxy_loop())) // x3

aei_create_shared_memory()

gv_ion_fd = ipc_fd = open("/dev/ion")

ioctl(ION_IOC_ALLOC)

ioctl(ION_IOC_PHYS)

ioctl(ION_IOC_MAP)

ptr = mmap(size) // size=8MB+DESC_SIZE, DESC_SIZE=4KB HDCP desc size

fopen("/proc/aeiudp")

fprintf(fd, "M %lX %X %d %d\n", phyAddr, size, gv_map_fd, DESC_SIZE);

gv_hdcp_desc_ptr = ptr

gv_ts_stream_ptr = ptr + DESC_SIZE

gv_ts_stream_phyAddr = phyAddr + DESC_SIZE

audio_firmware_configure()

board_init()

/*

根据programID， versionID和opt创建一个CLNT_STRUCT结构体

programID=VIDEO_SYSTEM=201

versionID=

*/

clnt = prepareCLNT() //

SetVO(clnt)

VIDEO_RPC_VOUT_ToAgent_SetBackground_0()

ConfigVoutMixerOrder()

initPLL()

MediaPlayServer::getMediaPlayServer()

m_pInstance = new MediaPlayServer()

xCreateConnection("/tmp/MediaPlayRequest")

m_pThread = new CThread(MediaPlayServer::procEntry)

xProcEntry()

m_pThread->Run()

fopen("/sys/kernel/rtk_pu/pu_memsize")

VideoPlayback类型定义在Application/AppClass/Class/Playback/VideoPlayback.cpp中，VideoPlayback在LoadMedia()时调用ReconstructFlow()，该函数创建一系列对象，包括FlowManager、各个Filter、CReferenceClock对象，然后将Filter添加到FlowManager里面，FlowManager还负责将各Filter的Pin按一定规则connect起来。

FlowMannager管理的Filter有：

CNavigationFilter Filters/NavigationFilter/CNavigationFilter.cpp

CMPEG2Decoder Filters/VideoDecoder/VDecodeMPEG2/CMPEG2Decoder.cpp

CVideoOutFilter Filters/VideoDecoder/VDecodeMPEG2/CVideoOutFilter.cpp

CFilterSpu Filters/SPUDecoder/CFilterSpu.cpp

TTDecodeFilter Filters/TTDecodeFilter/TTDecodeFilter.cpp

CCDecodeFilter Filters/CCDecodeFilter/CCDecodeFilter.cpp

MediaPlayServer::xProcEntry()

while()

xAccept(&m_client[index])

xProcessCommand(pClient)

PLBK:

pClient->flow.pPlayback = new VideoPlayback()

PRSN:

xLoadMedia()

pPlayback->LoadMedia()

ReconstructFlow()

m_pFManager = new CPlaybackFlowManager()

m_pSource = new CNavigationFilter

m_pRefClock = new CReferenceClock()

m_pCCDecoder = new CCDecodeFilter()

m_pTTDecoder = new TTDecodeFilter()

m_pVDecoder = new CMPEG2Decoder()

m_pVideoOut = new CVideoOutFilter(FILTER_TYPE_VO)

m_pSPUDecoder = new CFilterSpu

m_pFManager->AddFilter(m_pSource, "DVD Source")

m_pFManager->AddFilter(m_pVDecoder, "DVD VDecoder")

m_pFManager->AddFilter(m_pVideoOut, "VideoOut Filter")

m_pFManager->AddFilter(m_pSPUDecoder, "DVD SPU Decoder")

m_pFManager->AddFilter(m_pTTDecoder, "TTDecoder")

m_pFManager->AddFilter(m_pCCDecoder, "CCDecoder")

m_pVDecoder->SetRefClock(m_pRefClock)

m_pSource->EnumPins(&pEnumPins)

pEnumPins->Next(&pPinVideo)

...

m_pVDecoder->FindPin(&pPin2, "InputPin 1")

m_pFManager->ConnectDirect(pPinVideo, pPin2, NULL)

m_pNavControl->LoadMedia() == CNavigationFilter::LoadMedia()

SelectInputPlugin()

SelectDemuxPlugin()

PLAY:

pPlayback->m_pFManager->Run()

((CBaseFilter*)(m_IFilterArr[i]))->Pause(State_Paused_Running)

CNavigationFilter::StartStreaming()

osal_ThreadBegin(ThreadProcEntry)

CNavigationFilter::ThreadProc()

class MediaPlayServer

CLIENT_INFO m_client[2]

FLOW_INFO flow

VideoPlayback *pPlayback

CPlaybackFlowManager *m_pFManager

CNavigationFilter *m_pSource

CReferenceClock *m_pRefClock

CMPEG2Decoder *m_pVDecoder

CVideoOutFilter *m_pVideoOut

CFilterSpu *m_pSPUDecoder

INavControl *m_pNavControl

VoutUtil m_voutUtil

系统启动

COFG   4 16_0_0_0
PLBK 4   36_0_0_0
SURL 56   socket:///tmp/MediaData?container=ts?sharedMem=245460992
PRSN   4   1_0_0_0
PROP 8   1_0_0_0_1_0_0_0
FUNC 23 ____S_e_t_D_i_s_p_l_a_y_R_a_t_i_o__7_5__
GVSI 4   0_0_0_0

系统启动后第一次miracast连接

SVEL 8 0_16_0_0_0_16_0_0
PLAY 0
SVDR 4 1_0_0_0
GVSI 4 1_0_0_0
GASI 4 255_255_255_255

系统启动后第一次miracast断开

SVDR 4 0_0_0_0
STOP 4 1_0_0_0
SVLD 4 1_0_0_0
PROP 8 1_0_0_0_1_0_0_0
FUNC 23 ____S_e_t_D_i_s_p_l_a_y_R_a_t_i_o__7_5__

系统启动后第二次miracast连接

SVEL 8 0_16_0_0_0_16_0_0
PLAY 0
SVDR 4 1_0_0_0

系统启动后第二次miracast断开

SVDR 4   0_0_0_0
STOP 4   1_0_0_0
SVLD 4   0_0_0_0
PROP 8   1_0_0_0_1_0_0_0
FUNC 23 ____S_e_t_D_i_s_p_l_a_y_R_a_t_i_o__7_5__

size      =[0x801000][8392704]
offset    =[0x1000][4096]
addr     =[0x4175000][68636672]

MemHeaderPtr   =[0xf618 4000]
PhyAddr               =[0x417 6000] [68640768]
ts_size                  =[0x800]    [2048]
nav_size              =[0x3000]   [12288]
total_size             =[0x80 0000] [8388608]
ts_cnt                    =[4086]

pagesize =[0x1000] [4096]

------------------------------------------- <--rtp_mem_ptr
4096 (header)
------------------------------------------- <--nav_mem_ptr
4096*3          4096 (header)
(nav_size)    -------------------------- <--nav_ptr
                       4096
                   --------------------------
                     4096
------------------------------------------- <--data_mem_ptr
4096 (header)
------------------------------------------- <--data_ptr
2048             tsu
                      --------------------------
                      payload
-------------------------------------------
2048 tsu
                      ---------------------------
                      payload
-------------------------------------------
2048            tsu
                     ---------------------------
                     payload
-------------------------------------------
2048            tsu
                     ---------------------------
                     payload
-------------------------------------------