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TDA4VM: frame drop count

davied zhang
Intellectual 450 points
Part Number: TDA4VM

Hi,experts

       We  are  debugging camera on our custom board. The connection mode is as follows：

Now we have a problem. when using 8 cameras, the frame drop rate increases to 46%. But only using 4 camera on CSI0 and close CSI1,   frame drop is ok. 

The SDK used is 8.6.0.11.

sensor: 1080*720@30fps, YUV422

  • 0
    TI__Guru**** 475245 points

    Hi,

    Can you please share the capture node's statistics to better understand the issue? 

    Regards,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Intellectual 450 points

    Hi，thinks for you support. 

    Summary of CPU load,
====================

CPU: mpu1_0: TOTAL LOAD =  66.65 % ( HWI =   0.45 %, SWI =   0. 5 % )
CPU: mcu2_0: TOTAL LOAD =  14. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU: mcu2_1: TOTAL LOAD =   1. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU:  c6x_1: TOTAL LOAD =   0. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU:  c6x_2: TOTAL LOAD =   1. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU:  c7x_1: TOTAL LOAD =   1. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )


HWA performance statistics,
===========================

HWA:   LDC : LOAD =  22.14 % ( 124 MP/s )


DDR performance statistics,
===========================

DDR: READ  BW: AVG =   1657 MB/s, PEAK =   8618 MB/s
DDR: WRITE BW: AVG =   1333 MB/s, PEAK =   9044 MB/s
DDR: TOTAL BW: AVG =   2990 MB/s, PEAK =  17662 MB/s


Detailed CPU performance/memory statistics,
===========================================

DDR_SHARED_MEM: Alloc's: 123 alloc's of 205165320 bytes 
DDR_SHARED_MEM: Free's : 0 free's  of 0 bytes 
DDR_SHARED_MEM: Open's : 123 allocs  of 205165320 bytes 
DDR_SHARED_MEM: Total size: 536870912 bytes 

CPU: mcu2_0: TASK:           IPC_RX:   0.17 %
CPU: mcu2_0: TASK:       REMOTE_SRV:   0. 0 %
CPU: mcu2_0: TASK:        LOAD_TEST:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CPU_0:   0. 0 %
CPU: mcu2_0: TASK:        TIVX_V1NF:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_V1LDC1:   5.72 %
CPU: mcu2_0: TASK:       TIVX_V1SC1:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_V1MSC2:   0. 0 %
CPU: mcu2_0: TASK:       TIVXVVISS1:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT1:   1.32 %
CPU: mcu2_0: TASK:       TIVX_CAPT2:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_DISP1:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_DISP2:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CSITX:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT3:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT4:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT5:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT6:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT7:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT8:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M1:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M2:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M3:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M4:   0. 0 %

CPU: mcu2_0: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16683776 B ( 99 % unused)
CPU: mcu2_0: HEAP:           L3_MEM: size =     262144 B, free =     261888 B ( 99 % unused)

CPU: mcu2_1: TASK:           IPC_RX:   0. 0 %
CPU: mcu2_1: TASK:       REMOTE_SRV:   0. 0 %
CPU: mcu2_1: TASK:        LOAD_TEST:   0. 0 %
CPU: mcu2_1: TASK:       TIVX_CPU_1:   0. 0 %
CPU: mcu2_1: TASK:         TIVX_SDE:   0. 0 %
CPU: mcu2_1: TASK:         TIVX_DOF:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_RX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %

CPU: mcu2_1: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16773376 B ( 99 % unused)
CPU: mcu2_1: HEAP:           L3_MEM: size =     262144 B, free =     262144 B (100 % unused)

CPU:  c6x_1: TASK:           IPC_RX:   0. 0 %
CPU:  c6x_1: TASK:       REMOTE_SRV:   0. 0 %
CPU:  c6x_1: TASK:        LOAD_TEST:   0. 0 %
CPU:  c6x_1: TASK:         TIVX_CPU:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_RX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %

CPU:  c6x_1: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16773376 B ( 99 % unused)
CPU:  c6x_1: HEAP:           L2_MEM: size =     229376 B, free =     229376 B (100 % unused)
CPU:  c6x_1: HEAP:  DDR_SCRATCH_MEM: size =   50331648 B, free =   50331648 B (100 % unused)

CPU:  c6x_2: TASK:           IPC_RX:   0. 0 %
CPU:  c6x_2: TASK:       REMOTE_SRV:   0. 0 %
CPU:  c6x_2: TASK:        LOAD_TEST:   0. 0 %
CPU:  c6x_2: TASK:         TIVX_CPU:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_RX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %


capture_encode: frame 1197 beginning
CPU:  c6x_2: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16773376 B ( 99 % unused)
CPU:  c6x_2: HEAP:           L2_MEM: size =     229376 B, free =     229376 B (100 % unused)
CPU:  c6x_2: HEAP:  DDR_SCRATCH_MEM: size =   50331648 B, free =   50331648 B (100 % unused)

CPU:  c7x_1: TASK:           IPC_RX:   0. 0 %
CPU:  c7x_1: TASK:       REMOTE_SRV:   0. 0 %
CPU:  c7x_1: TASK:        LOAD_TEST:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P1:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P2:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P3:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P4:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P5:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P6:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P7:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P8:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_RX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %

CPU:  c7x_1: HEAP:    DDR_LOCAL_MEM: size =  268435456 B, free =  268435200 B ( 99 % unused)
CPU:  c7x_1: HEAP:           L3_MEM: size =    8159232 B, free =    8159232 B (100 % unused)
CPU:  c7x_1: HEAP:           L2_MEM: size =     458752 B, free =     458752 B (100 % unused)
CPU:  c7x_1: HEAP:           L1_MEM: size =      16384 B, free =      16384 B (100 % unused)
CPU:  c7x_1: HEAP:  DDR_SCRATCH_MEM: size =  385875968 B, free =  385875968 B (100 % unused)


GRAPH:    capture_graph (#nodes =   2, #executions =   1195)
 NODE:       CAPTURE1:             capture_node: avg =   2528 usecs, min/max =    208 /  64460 usecs, #executions =       1195
 NODE:      VPAC_LDC1:                 ldc_node: avg =  13537 usecs, min/max =  13197 /  14430 usecs, #executions =       1195

GRAPH:    display_graph (#nodes =   2, #executions =      0)
 NODE:      VPAC_MSC1:          img_mosaic_node: avg =      0 usecs, min/max = 18446744073709551 /      0 usecs, #executions =          0
 NODE:       DISPLAY1:              DisplayNode: avg =      0 usecs, min/max = 18446744073709551 /      0 usecs, #executions =          0

 PERF:           FILEIO: avg =      0 usecs, min/max = 4294967295 /      0 usecs, #executions =          0
 PERF:            TOTAL: avg =  59344 usecs, min/max =    343 / 118695 usecs, #executions =        970

 PERF:            TOTAL:   16.85 FPS

GST_WRAPPER PUSH/PULL COUNTS:

Push count : 1193
Pull count : -1

  • 0 in reply to davied zhang
    TI__Guru**** 475245 points

    Hi,

    But in the above statistics, i dont see any drop in the capture node. Capture node seems to be running fine. Do you mean the total fps in the above statistics? 

    Can you share the detailed statistics for the capture node? 

    Also i see you have two graphs; second graph does not seem to be running at all. Is it expected? 

    Regards,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Intellectual 450 points

    Hi,experts

    We set 30 fps in config, but ony 16fps in statistics. The frame drop count  is getting larger. And we get a video on h264 format. Opening the video, we can see that the picture is not coherent

    statistics as fellows:

    Summary of CPU load,
====================

CPU: mpu1_0: TOTAL LOAD =  62.95 % ( HWI =   0.46 %, SWI =   0. 6 % )
CPU: mcu2_0: TOTAL LOAD =  16. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU: mcu2_1: TOTAL LOAD =   5. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU:  c6x_1: TOTAL LOAD =   0. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU:  c6x_2: TOTAL LOAD =   0. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )
CPU:  c7x_1: TOTAL LOAD =   0. 0 % ( HWI =   0. 0 %, SWI =   0. 0 % )


HWA performance statistics,
===========================

HWA:   LDC : LOAD =  21.56 % ( 121 MP/s )

capture_encode: frame 2214 beginning


DDR performance statistics,
===========================

DDR: READ  BW: AVG =   1639 MB/s, PEAK =   5021 MB/s
DDR: WRITE BW: AVG =   1322 MB/s, PEAK =   3771 MB/s
DDR: TOTAL BW: AVG =   2961 MB/s, PEAK =   8792 MB/s


Detailed CPU performance/memory statistics,
===========================================

DDR_SHARED_MEM: Alloc's: 123 alloc's of 205165320 bytes 
DDR_SHARED_MEM: Free's : 0 free's  of 0 bytes 
DDR_SHARED_MEM: Open's : 123 allocs  of 205165320 bytes 
DDR_SHARED_MEM: Total size: 536870912 bytes 

CPU: mcu2_0: TASK:           IPC_RX:   0.12 %
CPU: mcu2_0: TASK:       REMOTE_SRV:   0. 3 %
CPU: mcu2_0: TASK:        LOAD_TEST:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CPU_0:   0. 0 %
CPU: mcu2_0: TASK:        TIVX_V1NF:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_V1LDC1:   3.96 %
CPU: mcu2_0: TASK:       TIVX_V1SC1:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_V1MSC2:   0. 0 %
CPU: mcu2_0: TASK:       TIVXVVISS1:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT1:   0.79 %
CPU: mcu2_0: TASK:       TIVX_CAPT2:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_DISP1:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_DISP2:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CSITX:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT3:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT4:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT5:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT6:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT7:   0. 0 %
CPU: mcu2_0: TASK:       TIVX_CAPT8:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M1:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M2:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M3:   0. 0 %
CPU: mcu2_0: TASK:      TIVX_DPM2M4:   0. 0 %

CPU: mcu2_0: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16683776 B ( 99 % unused)
CPU: mcu2_0: HEAP:           L3_MEM: size =     262144 B, free =     261888 B ( 99 % unused)

CPU: mcu2_1: TASK:           IPC_RX:   0. 0 %
CPU: mcu2_1: TASK:       REMOTE_SRV:   0. 0 %
CPU: mcu2_1: TASK:        LOAD_TEST:   0. 0 %
CPU: mcu2_1: TASK:       TIVX_CPU_1:   0. 0 %
CPU: mcu2_1: TASK:         TIVX_SDE:   0. 0 %
CPU: mcu2_1: TASK:         TIVX_DOF:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_RX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU: mcu2_1: TASK:      IPC_TEST_TX:   0. 0 %

CPU: mcu2_1: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16773376 B ( 99 % unused)
CPU: mcu2_1: HEAP:           L3_MEM: size =     262144 B, free =     262144 B (100 % unused)

CPU:  c6x_1: TASK:           IPC_RX:   0. 0 %
CPU:  c6x_1: TASK:       REMOTE_SRV:   0. 0 %
CPU:  c6x_1: TASK:        LOAD_TEST:   0. 0 %
CPU:  c6x_1: TASK:         TIVX_CPU:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_RX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_1: TASK:      IPC_TEST_TX:   0. 0 %

CPU:  c6x_1: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16773376 B ( 99 % unused)
CPU:  c6x_1: HEAP:           L2_MEM: size =     229376 B, free =     229376 B (100 % unused)
CPU:  c6x_1: HEAP:  DDR_SCRATCH_MEM: size =   50331648 B, free =   50331648 B (100 % unused)

CPU:  c6x_2: TASK:           IPC_RX:   0. 0 %
CPU:  c6x_2: TASK:       REMOTE_SRV:   0. 0 %
CPU:  c6x_2: TASK:        LOAD_TEST:   0. 0 %
CPU:  c6x_2: TASK:         TIVX_CPU:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_RX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c6x_2: TASK:      IPC_TEST_TX:   0. 0 %


capture_encode: frame 2215 beginning
CPU:  c6x_2: HEAP:    DDR_LOCAL_MEM: size =   16777216 B, free =   16773376 B ( 99 % unused)
CPU:  c6x_2: HEAP:           L2_MEM: size =     229376 B, free =     229376 B (100 % unused)
CPU:  c6x_2: HEAP:  DDR_SCRATCH_MEM: size =   50331648 B, free =   50331648 B (100 % unused)

CPU:  c7x_1: TASK:           IPC_RX:   0. 0 %
CPU:  c7x_1: TASK:       REMOTE_SRV:   0. 0 %
CPU:  c7x_1: TASK:        LOAD_TEST:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P1:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P2:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P3:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P4:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P5:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P6:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P7:   0. 0 %
CPU:  c7x_1: TASK:      TIVX_C71_P8:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_RX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %
CPU:  c7x_1: TASK:      IPC_TEST_TX:   0. 0 %

CPU:  c7x_1: HEAP:    DDR_LOCAL_MEM: size =  268435456 B, free =  268435200 B ( 99 % unused)
CPU:  c7x_1: HEAP:           L3_MEM: size =    8159232 B, free =    8159232 B (100 % unused)
CPU:  c7x_1: HEAP:           L2_MEM: size =     458752 B, free =     458752 B (100 % unused)
CPU:  c7x_1: HEAP:           L1_MEM: size =      16384 B, free =      16384 B (100 % unused)
CPU:  c7x_1: HEAP:  DDR_SCRATCH_MEM: size =  385875968 B, free =  385875968 B (100 % unused)



capture_encode: frame 2216 beginning
GRAPH:    capture_graph (#nodes =   2, #executions =   2213)
 NODE:       CAPTURE1:             capture_node: avg =   1141 usecs, min/max =    222 /  59307 usecs, #executions =       2213
 NODE:      VPAC_LDC1:                 ldc_node: avg =  13503 usecs, min/max =  13210 /  14401 usecs, #executions =       2213

GRAPH:    display_graph (#nodes =   2, #executions =      0)
 NODE:      VPAC_MSC1:          img_mosaic_node: avg =      0 usecs, min/max = 18446744073709551 /      0 usecs, #executions =          0
 NODE:       DISPLAY1:              DisplayNode: avg =      0 usecs, min/max = 18446744073709551 /      0 usecs, #executions =          0

 PERF:           FILEIO: avg =      0 usecs, min/max = 4294967295 /      0 usecs, #executions =          0
 PERF:            TOTAL: avg =  60276 usecs, min/max =     12 / 1273944 usecs, #executions =       2217

 PERF:            TOTAL:   16.59 FPS

GST_WRAPPER PUSH/PULL COUNTS:

Push count : 2213
Pull count : -1



capture_encode: frame 2217 beginning
[MCU2_0]    191.272708 s: ==========================================================
[MCU2_0]    191.272821 s:  Capture Status: Instance|0
[MCU2_0]    191.272863 s: ==========================================================
[MCU2_0]    191.272914 s:  overflowCount: 0
[MCU2_0]    191.272954 s:  spuriousUdmaIntrCount: 0
[MCU2_0]    191.272996 s:  frontFIFOOvflCount: 0
[MCU2_0]    191.273033 s:  crcCount: 0
[MCU2_0]    191.273068 s:  eccCount: 0
[MCU2_0]    191.273103 s:  correctedEccCount: 0
[MCU2_0]    191.273140 s:  dataIdErrorCount: 0
[MCU2_0]    191.273179 s:  invalidAccessCount: 0
[MCU2_0]    191.273216 s:  invalidSpCount: 0
[MCU2_0]    191.273258 s:  strmFIFOOvflCount[0]: 0
[MCU2_0]    191.273303 s:  strmFIFOOvflCount[1]: 0
[MCU2_0]    191.273338 s:  Channel Num | Frame Queue Count | Frame De-queue Count | Frame Drop Count | Error Frame Count |
[MCU2_0]    191.273424 s:            0 |              2217 |                 2215 |             1796 |                 0 |
[MCU2_0]    191.273508 s:            1 |              2217 |                 2215 |             1795 |                 0 |
[MCU2_0]    191.273591 s:            2 |              2217 |                 2215 |             1795 |                 0 |
[MCU2_0]    191.273752 s:            3 |              2217 |                 2215 |             1795 |                 0 |
[MCU2_0]    191.273825 s: ==========================================================
[MCU2_0]    191.273879 s:  Capture Status: Instance|1
[MCU2_0]    191.273910 s: ==========================================================
[MCU2_0]    191.273959 s:  overflowCount: 0
[MCU2_0]    191.273997 s:  spuriousUdmaIntrCount: 0
[MCU2_0]    191.274038 s:  frontFIFOOvflCount: 0
[MCU2_0]    191.274075 s:  crcCount: 0
[MCU2_0]    191.274111 s:  eccCount: 0
[MCU2_0]    191.274147 s:  correctedEccCount: 0
[MCU2_0]    191.274184 s:  dataIdErrorCount: 0
[MCU2_0]    191.274222 s:  invalidAccessCount: 0
[MCU2_0]    191.274262 s:  invalidSpCount: 0
[MCU2_0]    191.274303 s:  strmFIFOOvflCount[0]: 0
[MCU2_0]    191.274352 s:  strmFIFOOvflCount[1]: 0
[MCU2_0]    191.274385 s:  Channel Num | Frame Queue Count | Frame De-queue Count | Frame Drop Count | Error Frame Count |
[MCU2_0]    191.274467 s:            0 |              2217 |                 2215 |             1795 |                 0 |
[MCU2_0]    191.274549 s:            1 |              2217 |                 2215 |             1796 |                 0 |
[MCU2_0]    191.274704 s:            2 |              2217 |                 2215 |             1795 |                 0 |
[MCU2_0]    191.274796 s:            3 |              2217 |                 2215 |             1795 |                 0 |

  • 0 in reply to davied zhang
    TI__Guru**** 475245 points

    Hi David,

    Any further update on this issue? 

    Regards,

    Brijesh

  • 0 in reply to Brijesh Jadav
    Intellectual 450 points

    Hi,Brijesh

         Thanks for you support. After many tests of 8 cameras ，we found  only using capture node is ok,  using capture node and encode node the  frame drop rate increased. So we  think SOC performance affects frame drop rate. But we are currently debugging our custom board, and we will optimize later. We would be very happy if you could give us any suggestions on this.

    Regards,

    Zhang

  • 0 in reply to davied zhang
    TI__Guru**** 475245 points

    Hi Zhang,

    are you trying to encoder 8 camera input? are what resolution and fps? If i remember correctly, encoder on TDA4VM can support 2CH 1080p @30fps only. For any higher number of channels, there could potentially be frame drops in the capture drop, because encoder will be slower in that case. 

    Regards,

    Brijesh