2018R1 VPP Scaling on interlace video

[NAves]

Hi 

On a i7-6770HQ, running Mediasdk - commit id: 6ac564ed9ae702220c1a - can't run interlaced transcode and scale at the same time:

sample_multi_transcode -i::h265 ~/Videos/1080i.h265 -o::h264  ~/Videos/1080i_18_R1_L.h264 -gop_size 30  -dist 4  -b 5000 -hw -w 720 -h 576
Multi Transcoding Sample Version 8.3.26.

libva info: VA-API version 1.4.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_4
libva info: va_openDriver() returns 0
plugin_loader.h :186 [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)
ERROR: Field weaving or Field Splitting is enabled according to streams parameters. Other VPP filters cannot be used in this mode, please remove corresponding options.

[ERROR], sts=MFX_ERR_UNSUPPORTED(-3), Init, VPPPreInit failed at /home/inca/buildmedia/MediaSDK/samples/sample_multi_transcode/src/pipeline_transcode.cpp:3735

[ERROR], sts=MFX_ERR_UNSUPPORTED(-3), Init, pThreadPipeline->pPipeline->Init failed at /home/inca/buildmedia/MediaSDK/samples/sample_multi_transcode/src/sample_multi_transcode.cpp:302
plugin_loader.h :212 [INFO] MFXBaseUSER_UnLoad(session=0x0x564beddd5200), sts=0

I am wondering if this is a limitation with the sample code, or the library?

Cheers,