8127中保存H264流文件到本地文件

Hi，

我用的是DM8127，IPNC RDK 3.8。我修改了ENC_A8_DEC usecase，想保存H264流文件到本地。结果大约保存了2500帧左右，线程会阻塞很久，然后才会继续执行，请问是什么原因？

代码如下：

Void *MultiCh_ipcBitsMain(Void *prm)
{UInt32 i;OSA_DmaCopy1D copy1D;Bitstream_BufList fullBitsBufList;Bitstream_BufList emptyBitsBufList;IpcBitsOutLinkHLOS_BitstreamBufReqInfo ipcReqInfo;OSA_printf("Entered IPC Bits Handler function\n");gIpcBitsThObj.exitTh= FALSE;gIpcBitsThObj.exitDone = FALSE;//unsigned char const start_code[4] = { 0x00, 0x00, 0x00, 0x01 };FILE  *outFile  = NULL;FILE  *outFile2  = NULL;UInt8 *buf = NULL;UInt32 n= 0;if(outFile == NULL){	outFile = fopen("8127Test.h264", "w");if (outFile == NULL) {		OSA_printf("Failed to open file for writing\n");exit(0);}}if(outFile2 == NULL){	outFile2 = fopen("8127Test.hdr", "w");if (outFile2 == NULL) {		OSA_printf("Failed to open file for writing\n");exit(0);}}while(gIpcBitsThObj.exitTh == FALSE){OSA_semWait(&gIpcBitsNotifySem,OSA_TIMEOUT_FOREVER);IpcBitsInLink_getFullVideoBitStreamBufs(gIpcBitsInHLOSId,&fullBitsBufList);if(fullBitsBufList.numBufs > 0){for(i = 0;i < fullBitsBufList.numBufs;i++){ipcReqInfo.numBufs= 1;ipcReqInfo.minBufSize[0] = DEC_MIN_BUF_SIZE;/* Wait till empty buffer is got from IPC Bits Out link */do{IpcBitsOutLink_getEmptyVideoBitStreamBufs(gIpcBitsOutHLOSId,&emptyBitsBufList,&ipcReqInfo);OSA_waitMsecs(10);}while(emptyBitsBufList.numBufs == 0);/* Copy bitstream */emptyBitsBufList.numBufs = 1;emptyBitsBufList.bufs[0]->channelNum = fullBitsBufList.bufs[i]->channelNum;emptyBitsBufList.bufs[0]->fillLength = fullBitsBufList.bufs[i]->fillLength;emptyBitsBufList.bufs[0]->timeStamp  = fullBitsBufList.bufs[i]->timeStamp;if(gDmaHndl.chId == 0xFF){memcpy(emptyBitsBufList.bufs[0]->addr,(fullBitsBufList.bufs[i]->addr + fullBitsBufList.bufs[i]->startOffset),fullBitsBufList.bufs[i]->fillLength);}else{copy1D.srcPhysAddr = (unsigned long)CMEM_getPhys(fullBitsBufList.bufs[i]->addr + fullBitsBufList.bufs[i]->startOffset);copy1D.dstPhysAddr = (unsigned long)CMEM_getPhys(emptyBitsBufList.bufs[0]->addr);copy1D.size= fullBitsBufList.bufs[i]->fillLength;OSA_dmaCopy1D(&gDmaHndl,&copy1D,1);}

#if 1
		buf = fullBitsBufList.bufs[i]->addr + fullBitsBufList.bufs[i]->startOffset;
		if (fwrite(buf, fullBitsBufList.bufs[i]->fillLength, 1, outFile) != 1) {			OSA_printf("Failed to write data to file\n");	exit(0);}
#endif
		fprintf(outFile2, "%d, ", fullBitsBufList.bufs[i]->fillLength);
		n++;

		if(n % 100 == 0)			OSA_printf("received %d frames.\n", n);

		if(n == 3000)
		{
			fclose(outFile);
			fclose(outFile2);
			exit(0);
		}IpcBitsOutLink_putFullVideoBitStreamBufs(gIpcBitsOutHLOSId,&emptyBitsBufList);}}IpcBitsInLink_putEmptyVideoBitStreamBufs(gIpcBitsInHLOSId,&fullBitsBufList);}gIpcBitsThObj.exitDone = TRUE;OSA_printf("Exiting IPC Bits Handler function\n");return NULL;
}

log如下：

Starting syslogd/klogd: done

_____ _____ _ _| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_| |___| |___|

Arago Project http://arago-project.org DM8127_IPNC ttyO0

Arago 2011.09 DM8127_IPNC ttyO0

DM8127_IPNC login: root (automatic login)
root@DM8127_IPNC:~# mkdosfs 3.0.12 (29 Oct 2011)
unable to get drive geometry, using default 255/63
/dev/sbulla has 255 heads and 63 sectors per track,
logical sector size is 512,
using 0xf8 media descriptor, with 1024 sectors;
file system has 2 12-bit FATs and 4 sectors per cluster.
FAT size is 1 sector, and provides 247 clusters.
There is 1 reserved sector.
Root directory contains 512 slots and uses 32 sectors.
Volume ID is 63107077, no volume label.
g_file_storage gadget: No serial-number string provided!
g_file_storage gadget: File-backed Storage Gadget, version: 1 September 2010
g_file_storage gadget: Number of LUNs=1
g_file_storage gadget-lun0: ro=0, nofua=0, file: /dev/sbulla
[m3vpss ] CT: 5592, 3dlut index:2Simple mixer control 'PGA',0
Capabilities: cvolume cswitch penum
Capture channels: Front Left – Front Right
Limits: Capture 0 – 119
Front Left: Capture 80 [67%] [40.00dB] [on]
Front Right: Capture 80 [67%] [40.00dB] [on]
queue id:0
[m3vpss ] CT: 6091, 3dlut index:3

[host] received 100 frames.
./boa: /usr/lib/libssl.so.1.0.0: no version information available (required by ./boa)
./boa: /usr/lib/libcrypto.so.1.0.0: no version information available (required by ./boa)
ApproDrvInit: 3
queue id:163845
queue id:0
queue id:32769
queue id:0

[host] received 200 frames.

[host] received 300 frames.

[host] received 400 frames.

[host] received 500 frames.

[host] received 600 frames.
TimeOut occure in boot_proc.
Program exit.

[host] received 700 frames.
TimeOut occure in boot_proc.
Program exit.

[host] received 800 frames.

[host]Usecase is Active !!!

[host] received 900 frames.

[host] received 1000 frames.

[host] received 1100 frames.

[host] received 1200 frames.

[host] received 1300 frames.

[host] received 1400 frames.

[host] received 1500 frames.

[host] received 1600 frames.

[host] received 1700 frames.
[m3vpss ] 66182: CAMERA: Fields = 1801 (fps = 30), Total Resets = 0 (Avg 0 ms per reset)
[m3video] ==================== EncLink_PrintDetails ==================== [m3video] 67020: HDVICP-ID:0
[m3video] totalAcquire2wait in msec: 1125
[m3video] totalWait2Isr in msec: 45929
[m3video] totalIsr2Done in msec: 65
[m3video] totalWait2Done in msec: 45994
[m3video] totalDone2Release in msec: 0
[m3video] totalAcquire2Release in msec: 47715
[m3video] totalAcq2acqDelay in msec: 13053
[m3video] totalElapsedTime in msec: 60767
[m3video] numAccessCnt: 3567
[m3video] IVA-FPS : 59
[m3video] [m3video] *** ENCODE Statistics *** [m3video] [m3video] Elasped Time : 60 secs
[m3video] [m3video] [m3video] CH | In Recv In Skip In User Out Latency [m3video] Num | FPS FPS Skip FPS FPS Min / Max
[m3video] ——————————————–
[m3video] 0 | 30 0 0 29.67 14 / 56
[m3video] [m3video] Multi Channel Encode Average Submit Batch Size [m3video] Max Submit Batch Size : 24
[m3video] IVAHD_0 Average Batch Size : 1
[m3video] IVAHD_0 Max achieved Batch Size : 1
[m3video] ==============================================================

[host]Usecase is Active !!!

[host] received 1800 frames.

[host] received 1900 frames.
ApproDrvExit: 7
Error: WaitStreamReady Fail.
Error: SemWait: Invalid Semaphore handler
Error: SemRelease: Invalid Semaphore handler
Error: SemWait: Invalid Semaphore handler

[host]Force IDR on Channel: 0
[host]Force IDR on Channel: 1Error: SemRelease: Invalid Semaphore handler
SystemInit success
Schedule manager init success
Dmva Schedule manager init success
umount: can't umount /mnt/mmc: Invalid argument
killall: dhcpcd: no process killed
rm: cannot remove '/var/run/dhcpcd-eth0.pid': No such file or directory

[host] received 2000 frames.

[host] received 2100 frames.

[host] received 2200 frames.

[host] received 2300 frames.

[host] received 2400 frames.

[host] received 2500 frames.

[host]Usecase is Active !!! [m3vpss ] ==================== CameraLink_PrintDetails ==================== [m3vpss ] 126123: CAMERA: Fields = 3601 (fps = 30, CPU Load = 27)
[m3vpss ] 126123: CAMERA: Num Resets = 0 (Avg 0 ms per reset)
[m3vpss ] ================================================================= [m3vpss ] 126189: CAMERA: Fields = 1801 (fps = 30), Total Resets = 0 (Avg 0 ms per reset)

[host]Usecase is Active !!!

[host]Usecase is Active !!! [m3video] ==================== EncLink_PrintDetails ==================== [m3video] 161645: HDVICP-ID:0
[m3video] totalAcquire2wait in msec: 1618
[m3video] totalWait2Isr in msec: 65598
[m3video] totalIsr2Done in msec: 80
[m3video] totalWait2Done in msec: 65678
[m3video] totalDone2Release in msec: 0
[m3video] totalAcquire2Release in msec: 68152
[m3video] totalAcq2acqDelay in msec: 18103
[m3video] totalElapsedTime in msec: 86242
[m3video] numAccessCnt: 5095
[m3video] IVA-FPS : 59
[m3video] [m3video] *** ENCODE Statistics *** [m3video] [m3video] Elasped Time : 94 secs
[m3video] [m3video] [m3video] CH | In Recv In Skip In User Out Latency [m3video] Num | FPS FPS Skip FPS FPS Min / Max
[m3video] ——————————————–
[m3video] 0 | 30 22 0 8.14 14 / 29
[m3video] [m3video] Multi Channel Encode Average Submit Batch Size [m3video] Max Submit Batch Size : 24
[m3video] IVAHD_0 Average Batch Size : 1
[m3video] IVAHD_0 Max achieved Batch Size : 1
[m3video] ==============================================================net_search_gateway:eth0, 1A8C0, 0, 1
dns=192.168.1.1
net_search_gateway:eth0, 1A8C0, 0, 1
net_search_gateway:eth0, 0, FE01A8C0, 3
dns=192.168.1.1
g_file_storage gadget: No serial-number string provided!
g_file_storage gadget: File-backed Storage Gadget, version: 1 September 2010
g_file_storage gadget: Number of LUNs=1
g_file_storage gadget-lun0: ro=0, nofua=0, file: /dev/sbulla
[09/Nov/2012:12:25:24 +0000] boa: server version Boa/0.94.13
[09/Nov/2012:12:25:24 +0000] boa: server built Aug 19 2014 at 09:27:37.
[09/Nov/2012:12:25:24 +0000] boa: starting server pid=549, port 80
queue id:0
<UDN>uuid:Upnp-TVEmulator-1_0-00_0095591997</UDN>

Upnp port is 0
UPnP Initialized OK ip=192.168.1.224, port=0
desc_doc_url = http://192.168.1.224/tvdevicedesc.xml
error code = 0
device advertisement succeed.
queue id:131076
ApproDrvInit: 10
queue id:163845
Initializing…
…done initializing
Play this stream using the URL:
rtsp://192.168.1.224:8557/PSIA/Streaming/channels/2?videoCodecType=H.264

(We use port 8304 for optional RTSP-over-HTTP tunneling.)
ApproDrvInit: 6
queue id:163845
Initializing…
…done initializing
Play this stream using the URL:
rtsp://192.168.1.224:8554/PSIA/Streaming/channels/1?videoCodecType=MPEG4

(We use port 8301 for optional RTSP-over-HTTP tunneling.)
ApproDrvInit: 2
ApproDrvInit: 8
queue id:163845
Initializing…
…done initializing
Play this stream using the URL:
rtsp://192.168.1.224:8555/PSIA/Streaming/channels/0?videoCodecType=MJPEG

(We use port 8302 for optional RTSP-over-HTTP tunneling.)
ApproDrvInit: 9
queue id:163845
Initializing…
…done initializing
Play this stream using the URL:
rtsp://192.168.1.224:8553/PSIA/Streaming/channels/1?videoCodecType=MPEG4

(We use port 8300 for optional RTSP-over-HTTP tunneling.)
queue id:163845
Initializing…
…done initializing
Play this stream using the URL:
rtsp://192.168.1.224:8556/PSIA/Streaming/channels/2?videoCodecType=H.264

(We use port 8303 for optional RTSP-over-HTTP tunneling.)

[host] received 2600 frames.

[host] received 2700 frames.

[host] received 2800 frames.

[host] received 2900 frames.

[host] received 3000 frames.
[m3vpss ] 186197: CAMERA: Fields = 1801 (fps = 30), Total Resets = 0 (Avg 0 ms per reset)

comeback：

我尝试改小每次写入文件的数据，程序运行就没问题了。相关代码如下：

buf = fullBitsBufList.bufs[i]->addr + fullBitsBufList.bufs[i]->startOffset;
if (fwrite(buf, 10000, 1, outFile) != 1) {OSA_printf("Failed to write data to file\n");exit(0);}

我怀疑是不是fwrite的耗时太长了，于是又改了一下代码，注释掉fwrite，用延时代替，

buf = fullBitsBufList.bufs[i]->addr + fullBitsBufList.bufs[i]->startOffset;
//if (fwrite(buf, 10000, 1, outFile) != 1) {
//OSA_printf("Failed to write data to file\n");
//exit(0);
//}
OSA_waitMsecs(50);

从打印结果看，程序执行比之前慢了，但好歹正常执行完了。我实在想不出问题在哪里了。

comeback：

我在fwrite调用前后加打印信息，发现中间是fwrite发生了阻塞。经过十几二十分钟后，程序又会恢复正常，但诡异的是，系统的IP竟然发生了变化，比如阻塞前IP是192.168.1.168，恢复正常后，IP变成了192.168.1.224。怎么这么奇怪？

kooking：

回复 comeback:

是不是有可能存储空间不够了啊，IP地址变化是和路由器的配置也可能有关系，有些路由器配置是过一段时间后重新分配dhcp设置的IP地址的

另外，没有看懂outFile2的作用啊

comeback：

回复 kooking:

kooking，你好！

先谢谢你的回复。

应该不是空间不够。因为阻塞一段时间后程序还是有可能会继续执行的，3000帧还是会保存完整的。我还特意删掉了很多东西，确保空间足够。

outFile2是用来保存每一帧的大小，因为后面我想要测试读本地的H264文件让8127解码。

我再说一下我的环境吧。其实我是用NFS启动系统的。虽然8127和电脑是通过路由器相连接的，但路由器是关掉了DHCP服务的。另外，如果我不改动原来的usecase，程序正常执行的话，即使长时间执行也不会发生IP变化的情况。只有在我改动程序，造成程序阻塞时，才有可能出现这种情况。我也确认了程序运行一段时间后，是fwrite造成程序阻塞，但是想不通fwrite在什么情况下才会block住这么长时间。

我另外还做了一个实验。就是sys_server和其他程序都不运行，只加载几个M3的固件和IPNC_MCFW那个可执行文件，结果程序不再阻塞，顺利执行完毕。现在我估计是fwrite和其他什么操作起了冲突，造成线程block。

comeback：

回复 kooking:

经过多次试验，终于定位到了原因，问题跟/opt/ipnc路径下的脚本autorun_ipnc.sh有关。脚本中包含下列指令：

cd /opt/ipnc
./boot_proc 1&
sleep 2
./boa -C /etc &
sleep 2
./boot_proc 2&
sleep 2

如果将第一个boot_proc指令的参数改大一点，比如从1改成5，问题就消失了。

我看了boot_proc程序的源代码，但没看懂其作用。所以我现在的新问题是，boot_proc进程是干什么用的？

Grace huang：

回复 comeback:

请问你的那个IP会改变的问题解决了吗？我也遇到了相同的问题，不知道可都告知解决方法。

comeback：

回复 Grace huang:

Grace

我后来没做这个了，所以这些问题我也没有继续跟。

dazhi zhao：

回复 comeback:

您好！我刚接触这块，也遇到了和您类似的问题。我也是用NFS启动的，但是到一定地方就出错了。就是这里之后：

umount: can't umount /mnt/mmc: Invalid argumentkillall: dhcpcd: no process killedrm: cannot remove '/var/run/dhcpcd-eth0.pid': No such file or directory

然后就和你不一样了。我用的是IPNC_RDK 3.5 DM8127……！！相机中的内核，文件系统都是烧好的。

然后我也没法打开boot_proc，没法运行./boot_proc 1&操作

dazhi zhao：

回复 comeback:

请问怎样可以不运行sys_server和其他程序，，只加载几个M3的固件和IPNC_MCFW那个可执行文件喃？？？

dazhi zhao：

回复 comeback:

请问怎样可以不运行sys_server和其他程序，，只加载几个M3的固件和IPNC_MCFW那个可执行文件喃？？？