[FFmpeg-trac] #7691(undetermined:new): GPU side format conversions working with MediaSDK and old i965 driver, fail with new iHD driver

[FFmpeg]

#7691: GPU side format conversions working with MediaSDK and old i965 driver, fail
with new iHD driver
-------------------------------------+-------------------------------------
             Reporter:  eero-t       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by eero-t):

 '''VA-API'''

 Scaling and format conversions seem to be working now, except for
 "uyvy422" which has been segfaulting for several months now:
 https://github.com/intel/media-driver/issues/757

 '''QSV'''

 Only scaling and "nv12" format works, for all other formats I get:
 {{{
 $ ffmpeg -hwaccel qsv -qsv_device /dev/dri/renderD128 -c:v hevc_qsv -i
 1920x1080_60_yuv420p.h265 -vf
 scale_qsv=w=1920:h=540,hwdownload,format=yuv420p -f null -
 ...
 Input #0, hevc, from '1920x1080_60_yuv420p.h265':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: hevc (Main), yuv420p(tv), 1920x1080, 60 fps, 60
 tbr, 1200k tbn, 60 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (hevc (hevc_qsv) -> wrapped_avframe (native))
 Press [q] to stop, [?] for help
 [hwdownload @ 0x5598aefa46c0] Invalid output format yuv420p for hwframe
 download.
 [Parsed_hwdownload_1 @ 0x5598aefa3600] Failed to configure output pad on
 Parsed_hwdownload_1
 Error reinitializing filters!
 Failed to inject frame into filter network: Invalid argument
 }}}

 I'm using git versions from yesterday:
 * ffmpeg https://github.com/FFmpeg/FFmpeg.git at
 39d5acbd097b86a3ab8232a0156a18bf8d8a71ef 2019-10-17_15-35-28
 avcodec/libdav1d: set AVFrame reordered_opaque
 * libva git://github.com/intel/libva at
 95eb8cf469367b532b391042fa0e77ca513ac94e 2019-10-12_07-02-48 Add missed
 slice parameter 'slice_data_num_emu_prevn_bytes'
 * gmmlib git://github.com/intel/gmmlib at
 77699a1c8c44884bf39fc609772b734621e120a3 2019-10-15_14-02-10 Disable ULT
 for 32bit
 * media-driver git://github.com/intel/media-driver at
 4f1b23183c0ee74d9476db3dd4e68e2f987bd965 2019-10-17_09-41-08 [Decode] Fix
 VC1 Green Line
 * media-sdk git://github.com/Intel-Media-SDK/MediaSDK at
 f87a709646f1af1aafcf8e5fe14baf01ddb39678 2019-10-17_12-00-25 [HEVCd] Skip
 frames after new SPS without any subsequent slice

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Ticket URL: <https://trac.ffmpeg.org/ticket/7691#comment:7>
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