sample multi_transcode has no display

[naing__aung]

Hi:

I'm running example mentioned here https://software.intel.com/en-us/articles/how-to-create-video-wall-with-msdk-sample-multi-transcode

I got the following output but no rendering on monitor.

My understanding is that vpp_comp_only 4 ensures that it displays on monitor.

Aung.

Multi Transcoding Sample Version 8.2.25.

Par file is: parfile

WARNING: internal allocators were disabled because of composition+rendering requirement

Some inter-sessions do not use opaque memory (possibly because of -o::raw).
Opaque memory in all inter-sessions is disabled.
libva info: VA-API version 1.4.1
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_4
libva info: va_openDriver() returns 0
plugin_loader.h :172 [INFO] Plugin was loaded from GUID: { 0x33, 0xa6, 0x1c, 0x0b, 0x4c, 0x27, 0x45, 0x4c, 0xa8, 0xd8, 0x5d, 0xde, 0x75, 0x7c, 0x6f, 0x8e } (Intel (R) Media SDK HW plugin for HEVC DECODE)
MFX HARDWARE Session 0 API ver 1.29 parameters:
Input  video: HEVC
Output video: To child session

plugin_loader.h :172 [INFO] Plugin was loaded from GUID: { 0x33, 0xa6, 0x1c, 0x0b, 0x4c, 0x27, 0x45, 0x4c, 0xa8, 0xd8, 0x5d, 0xde, 0x75, 0x7c, 0x6f, 0x8e } (Intel (R) Media SDK HW plugin for HEVC DECODE)
MFX HARDWARE Session 1 API ver 1.29 parameters:
Input  video: HEVC
Output video: To child session

plugin_loader.h :172 [INFO] Plugin was loaded from GUID: { 0x33, 0xa6, 0x1c, 0x0b, 0x4c, 0x27, 0x45, 0x4c, 0xa8, 0xd8, 0x5d, 0xde, 0x75, 0x7c, 0x6f, 0x8e } (Intel (R) Media SDK HW plugin for HEVC DECODE)
MFX HARDWARE Session 2 API ver 1.29 parameters:
Input  video: HEVC
Output video: To child session

plugin_loader.h :172 [INFO] Plugin was loaded from GUID: { 0x33, 0xa6, 0x1c, 0x0b, 0x4c, 0x27, 0x45, 0x4c, 0xa8, 0xd8, 0x5d, 0xde, 0x75, 0x7c, 0x6f, 0x8e } (Intel (R) Media SDK HW plugin for HEVC DECODE)
MFX HARDWARE Session 3 API ver 1.29 parameters:
Input  video: HEVC
Output video: To child session

Pipeline surfaces number (EncPool): 2
MFX HARDWARE Session 4 API ver 1.29 parameters:
Input  video: From parent session
Output video: To child session

Pipeline surfaces number (DecPool): 6
Session 0 was joined with other sessions
Pipeline surfaces number (DecPool): 6
Session 1 was joined with other sessions
Pipeline surfaces number (DecPool): 6
Session 2 was joined with other sessions
Pipeline surfaces number (DecPool): 6
Session 3 was joined with other sessions
Session 4 was joined with other sessions

Transcoding started
........................................................................................................
Transcoding finished

Common transcoding time is 46.0446 sec
-------------------------------------------------------------------------------
*** session 0 PASSED (MFX_ERR_NONE) 44.6974 sec, 2500 frames
-i::h265 /home/movidius/mdk/examples/refApps/AICamera_generic/pc/mbnet_videoStream4kHevc.h265 -vpp_comp_dst_x 0 -vpp_comp_dst_y 0 -vpp_comp_dst_w 960 -vpp_comp_dst_h 540 -join -o::sink

*** session 1 PASSED (MFX_ERR_NONE) 44.6974 sec, 2500 frames
-i::h265 /home/movidius/mdk/examples/refApps/AICamera_generic/pc/mbnet_videoStream4kHevc.h265 -vpp_comp_dst_x 960 -vpp_comp_dst_y 0 -vpp_comp_dst_w 960 -vpp_comp_dst_h 540 -join -o::sink

*** session 2 PASSED (MFX_ERR_NONE) 46.0443 sec, 2655 frames
-i::h265 /home/movidius/mdk/examples/refApps/AICamera_generic/pc/mbnet_videoStream4kHevc_2.h265 -vpp_comp_dst_x 0 -vpp_comp_dst_y 540 -vpp_comp_dst_w 960 -vpp_comp_dst_h 540 -join -o::sink

*** session 3 PASSED (MFX_ERR_NONE) 46.0403 sec, 2655 frames
-i::h265 /home/movidius/mdk/examples/refApps/AICamera_generic/pc/mbnet_videoStream4kHevc_2.h265 -vpp_comp_dst_x 960 -vpp_comp_dst_y 540 -vpp_comp_dst_w 960 -vpp_comp_dst_h 540 -join -o::sink

*** session 4 PASSED (MFX_ERR_NONE) 44.7168 sec, 2501 frames
-vpp_comp_only 4 -join -i::source

[naing__aung]

Resolved: -rdrm or -rX11 is required for rendering. That should be part of -vpp_comp_only 4 -join -i::source

[Mark_L_Intel1]

Hi aung,

Sorry for the late response, I have checked the rendering is still working in my environment based on the article.

Yes "-vpp_comp_only" should force the rendering to screen.

Mark