• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 97 subscribers
  • Views 1907 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Gstreamer development with appsrc got green screen ?

user4562779
Prodigy 10 points

Hi all

I have Vayu board with a LCD display, and rootfs of the GLSDK 7.03.00.03.

I follow the Gstreamer programming guide to develop the appsrc pipeline, and change the pipeline to appsrc->vpe->kmssink

The board shows the green screen with the correct size.

But if i change the pipeline to videotestsrc->vpe->kmssink, it works correctly.

The following is the VPE debug message, I find the difference between these two cases.

In the pipeline appsrc->vpe->kmssink, the code does not execute into gstvpebufferpool.c and gstvpebuffer.c

What is the problem in appsrc?

Thank you for your help.

0:00:00.060991215 13501 0x27ed140 DEBUG vpe gstvpe.c:895:gst_vpe_change_state:<vpe1> begin: changing state NULL -> READY

0:00:00.061158762 13501 0x27ed140 DEBUG vpe gstvpe.c:907:gst_vpe_change_state:<vpe1> parent state change returned: 1
0:00:00.061225943 13501 0x27ed140 DEBUG vpe gstvpe.c:923:gst_vpe_change_state:<vpe1> end
0:00:00.061497109 13501 0x27ed140 DEBUG vpe gstvpe.c:895:gst_vpe_change_state:<vpe1> begin: changing state READY -> PAUSED
0:00:00.061573887 13501 0x27ed140 DEBUG vpe gstvpe.c:640:gst_vpe_activate_mode:<vpe1> gst_vpe_activate_mode (active = 1)
0:00:00.061844239 13501 0x27ed140 DEBUG vpe gstvpe.c:647:gst_vpe_activate_mode:<vpe1> gst_pad_start_task returned 1
0:00:00.061928338 13501 0x27ed140 DEBUG vpe gstvpe.c:907:gst_vpe_change_state:<vpe1> parent state change returned: 1
0:00:00.061986898 13501 0x27ed140 DEBUG vpe gstvpe.c:923:gst_vpe_change_state:<vpe1> end
0:00:00.062803647 13501 0x27dd0c0 DEBUG vpe gstvpe.c:818:gst_vpe_event:<vpe1> begin: event=stream-start
0:00:00.062982906 13501 0x27dd0c0 DEBUG vpe gstvpe.c:862:gst_vpe_event:<vpe1> end ret=1
0:00:00.063212754 13501 0x27dd0c0 DEBUG vpe gstvpe.c:818:gst_vpe_event:<vpe1> begin: event=caps
0:00:00.063325807 13501 0x27dd0c0 DEBUG vpe gstvpe.c:114:gst_vpe_parse_input_caps:<vpe1> Input caps: video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, framerate=(fraction)30/1
0:00:00.063551101 13501 0x27dd0c0 DEBUG vpe gstvpe.c:185:gst_vpe_set_output_caps:<vpe1> Downstream allowed caps: video/x-raw, format=(string)NV12, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
0:00:00.063620722 13501 0x27dd0c0 DEBUG vpe gstvpe.c:219:gst_vpe_set_output_caps:<vpe1> Passthrough = TRUE
0:00:00.064120922 13501 0x27dd0c0 INFO vpe gstvpe.c:671:gst_vpe_sink_setcaps:<vpe1> set caps done 1
0:00:00.064243573 13501 0x27dd0c0 DEBUG vpe gstvpe.c:469:gst_vpe_create:<vpe1> dce_init() done
0:00:00.064334991 13501 0x27dd0c0 DEBUG vpe gstvpe.c:114:gst_vpe_parse_input_caps:<vpe1> Input caps: video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, framerate=(fraction)30/1
0:00:00.064406239 13501 0x27dd0c0 DEBUG vpe gstvpe.c:120:gst_vpe_parse_input_caps:<vpe1> Already set caps comapred with the new caps, returned TRUE
0:00:00.064465287 13501 0x27dd0c0 DEBUG vpe gstvpe.c:496:gst_vpe_init_input_bufs:<vpe1> Using min input buffers: 12
0:00:00.064520757 13501 0x27dd0c0 DEBUG vpe gstvpe.c:497:gst_vpe_init_input_bufs:<vpe1> parse/set caps done
0:00:00.064753533 13501 0x27dd0c0 DEBUG vpe gstvpe.c:503:gst_vpe_init_input_bufs:<vpe1> gst_vpe_init_input_buffers done
0:00:00.067208335 13501 0x27dd0c0 DEBUG vpe gstvpe.c:818:gst_vpe_event:<vpe1> begin: event=segment
0:00:00.067307237 13501 0x27dd0c0 DEBUG vpe gstvpe.c:862:gst_vpe_event:<vpe1> end ret=1
0:00:00.067419151 13501 0x27dd0c0 DEBUG vpe gstvpe.c:747:gst_vpe_chain:<vpe1> chain: 0:00:00.000000000 ( ptr 0xb4d07900)
0:00:00.067526511 13501 0x27dd0c0 DEBUG vpe gstvpe.c:114:gst_vpe_parse_input_caps:<vpe1> Input caps: video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, framerate=(fraction)30/1
0:00:00.067596946 13501 0x27dd0c0 DEBUG vpe gstvpe.c:120:gst_vpe_parse_input_caps:<vpe1> Already set caps comapred with the new caps, returned TRUE
0:00:00.067654530 13501 0x27dd0c0 DEBUG vpe gstvpe.c:496:gst_vpe_init_input_bufs:<vpe1> Using min input buffers: 12
0:00:00.067708535 13501 0x27dd0c0 DEBUG vpe gstvpe.c:497:gst_vpe_init_input_bufs:<vpe1> parse/set caps done
0:00:00.067835253 13501 0x27dd0c0 DEBUG vpe gstvpe.c:219:gst_vpe_set_output_caps:<vpe1> Passthrough = TRUE
0:00:00.068031266 13501 0x27dd0c0 DEBUG vpe gstvpe.c:782:gst_vpe_chain:<vpe1> Passthrough for VPE
0:00:00.069043378 13501 0xb4d02780 DEBUG vpe gstvpe.c:871:gst_vpe_src_event:<vpe1> begin: event=latency
0:00:00.069181157 13501 0xb4d02780 DEBUG vpe gstvpe.c:882:gst_vpe_src_event:<vpe1> end
0:00:00.069590751 13501 0xb4d02780 DEBUG vpe gstvpe.c:895:gst_vpe_change_state:<vpe1> begin: changing state PAUSED -> PLAYING
0:00:00.069722674 13501 0xb4d02780 DEBUG vpe gstvpe.c:907:gst_vpe_change_state:<vpe1> parent state change returned: 1
0:00:00.069822389 13501 0xb4d02780 DEBUG vpe gstvpe.c:923:gst_vpe_change_state:<vpe1> end
0:00:00.169012130 13501 0x27dd0c0 DEBUG vpe gstvpe.c:747:gst_vpe_chain:<vpe1> chain: 0:00:00.500000000 ( ptr 0xb4d07a40)
0:00:00.169121604 13501 0x27dd0c0 DEBUG vpe gstvpe.c:782:gst_vpe_chain:<vpe1> Passthrough for VPE
0:00:00.569314950 13501 0x27dd0c0 DEBUG vpe gstvpe.c:871:gst_vpe_src_event:<vpe1> begin: event=qos
0:00:00.571664345 13501 0x27dd0c0 DEBUG vpe gstvpe.c:882:gst_vpe_src_event:<vpe1> end
0:00:00.573822118 13501 0x27dd0c0 DEBUG vpe gstvpe.c:747:gst_vpe_chain:<vpe1> chain: 0:00:01.000000000 ( ptr 0xb4d07b80)
0:00:00.573996985 13501 0x27dd0c0 DEBUG vpe gstvpe.c:782:gst_vpe_chain:<vpe1> Passthrough for VPE
0:00:01.069379610 13501 0x27dd0c0 DEBUG vpe gstvpe.c:871:gst_vpe_src_event:<vpe1> begin: event=qos
0:00:01.071536895 13501 0x27dd0c0 DEBUG vpe gstvpe.c:882:gst_vpe_src_event:<vpe1> end
0:00:01.073717116 13501 0x27dd0c0 DEBUG vpe gstvpe.c:747:gst_vpe_chain:<vpe1> chain: 0:00:01.500000000 ( ptr 0xb4d07cc0)
0:00:01.073893772 13501 0x27dd0c0 DEBUG vpe gstvpe.c:782:gst_vpe_chain:<vpe1> Passthrough for VPE
0:00:01.569397747 13501 0x27dd0c0 DEBUG vpe gstvpe.c:871:gst_vpe_src_event:<vpe1> begin: event=qos
0:00:01.569477779 13501 0x27dd0c0 DEBUG vpe gstvpe.c:882:gst_vpe_src_event:<vpe1> end
0:00:01.571646288 13501 0x27dd0c0 DEBUG vpe gstvpe.c:747:gst_vpe_chain:<vpe1> chain: 0:00:02.000000000 ( ptr 0xb4d07e00)
0:00:01.571703547 13501 0x27dd0c0 DEBUG vpe gstvpe.c:782:gst_vpe_chain:<vpe1> Passthrough for VPE

  • 0
    TI__Guru* 80190 points

    Hello,

    What is the gstreamer version that you are using?

    Keep in mind that the manual which you pointed is for 1.7 gstreamer version.
    There are differences between 1.0+ to 0.10 for example or 0.8.
    I would recommend you to check the version that you are using and to find accordingly the same manual.

    BR
    Margarita