[FFmpeg-trac] #7522(undetermined:new): [regression] VAAPI: MPEG2 Encode Core Dump

[FFmpeg]

#7522: [regression] VAAPI: MPEG2 Encode Core Dump
-------------------------------------+-------------------------------------
             Reporter:  uartie       |                     Type:  defect
               Status:  new          |                 Priority:  critical
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  vaapi        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Any MPEG2 encoding (CQP with I, IP or IPB frames) on ffmpeg-vaapi (iHD and
 i965 drivers) fails since:

 {{{
 commit 29816e278f4ff22f50d9c831e3cf5f4d1b0e0214
 Author: Mark Thompson <sw at jkqxz.net>
 Date:   Sun Sep 23 22:52:57 2018 +0100

     vaapi_encode_mpeg2: Use common slice sizing code
 }}}

 How to reproduce:
 {{{
 % ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -v verbose \
   -f rawvideo -pix_fmt yuv420p -s:v 1280x720 \
   -i input.yuv -vf 'format=nv12,hwupload' -c:v mpeg2_vaapi -vframes 10 -y
 test.m2v

 ffmpeg version N-92276-g29816e278f4f Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 8 (GCC)
   configuration: --prefix=/home/uaeoff/Work/workspace/media/install
 --disable-static --enable-shared --enable-libdrm --enable-vaapi --enable-
 libmfx --disable-amf --disable-audiotoolbox --disable-cuda --disable-cuda-
 sdk --disable-cuvid --disable-d3d11va --disable-dxva2 --disable-libnpp
 --disable-mmal --disable-nvdec --disable-nvenc --disable-omx --disable-
 omx-rpi --disable-rkmpp --disable-v4l2-m2m --disable-vdpau --disable-
 videotoolbox --enable-nonfree --enable-gpl
   libavutil      56. 20.100 / 56. 20.100
   libavcodec     58. 34.100 / 58. 34.100
   libavformat    58. 19.102 / 58. 19.102
   libavdevice    58.  4.106 / 58.  4.106
   libavfilter     7. 38.100 /  7. 38.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 [AVHWDeviceContext @ 0x83b480] Opened VA display via DRM device
 /dev/dri/renderD128.
 [AVHWDeviceContext @ 0x83b480] libva: VA-API version 1.4.0
 [AVHWDeviceContext @ 0x83b480] libva: va_getDriverName() returns 0
 [AVHWDeviceContext @ 0x83b480] libva: Trying to open
 /home/uaeoff/Work/workspace/media/install/lib/dri/i965_drv_video.so
 [AVHWDeviceContext @ 0x83b480] libva: Found init function
 __vaDriverInit_1_4
 [AVHWDeviceContext @ 0x83b480] libva: va_openDriver() returns 0
 [AVHWDeviceContext @ 0x83b480] Initialised VAAPI connection: version 1.4
 [AVHWDeviceContext @ 0x83b480] VAAPI driver: Intel i965 driver for
 Intel(R) Kaby Lake - 2.2.1.pre1 (2.2.1.pre1).
 [AVHWDeviceContext @ 0x83b480] Driver not found in known nonstandard list,
 using standard behaviour.
 [rawvideo @ 0x84c280] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, rawvideo, from
 '/home/uaeoff/Work/workspace/media/src/input.yuv':
   Duration: 00:00:24.16, start: 0.000000, bitrate: 276480 kb/s
     Stream #0:0: Video: rawvideo, 1 reference frame (I420 / 0x30323449),
 yuv420p, 1280x720, 276480 kb/s, 25 tbr, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (mpeg2_vaapi))
 Press [q] to stop, [?] for help
 [graph 0 input from stream 0:0 @ 0x85e9c0] w:1280 h:720 pixfmt:yuv420p
 tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
 [auto_scaler_0 @ 0x861e40] w:iw h:ih flags:'bicubic' interl:0
 [Parsed_format_0 @ 0x85dec0] auto-inserting filter 'auto_scaler_0' between
 the filter 'graph 0 input from stream 0:0' and the filter
 'Parsed_format_0'
 [auto_scaler_0 @ 0x861e40] w:1280 h:720 fmt:yuv420p sar:0/1 -> w:1280
 h:720 fmt:nv12 sar:0/1 flags:0x4
 [mpeg2_vaapi @ 0x859ac0] Input surface format is nv12.
 [mpeg2_vaapi @ 0x859ac0] Using VAAPI profile VAProfileMPEG2Main (1).
 [mpeg2_vaapi @ 0x859ac0] Using VAAPI entrypoint VAEntrypointEncSlice (6).
 [mpeg2_vaapi @ 0x859ac0] Using VAAPI render target format YUV420 (0x1).
 [mpeg2_vaapi @ 0x859ac0] Using constant-quality mode.
 [mpeg2_vaapi @ 0x859ac0] Using intra, P- and B-frames (supported
 references: 1 / 1).
 [mpeg2_vaapi @ 0x859ac0] All wanted packed headers available (wanted 0x3,
 found 0xb).
 Output #0, mpeg2video, to 'test.m2v':
   Metadata:
     encoder         : Lavf58.19.102
     Stream #0:0: Video: mpeg2video (mpeg2_vaapi) (Main), 1 reference
 frame, vaapi_vld, 1280x720, q=-1--1, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.34.100 mpeg2_vaapi
 ffmpeg: gen8_mfc.c:2284: gen8_mfc_mpeg2_pipeline_slice_group: Assertion
 `h_start_pos + slice_param->num_macroblocks <= width_in_mbs' failed.
 Aborted (core dumped)
 }}}

 Software stack:
 {{{
 libva (master) heads/master-0-g285267586a3d
 https://github.com/01org/libva
 gmmlib (master) heads/master-0-gaedd82e2da01
 https://github.com/intel/gmmlib
 intel-media-driver (master) heads/master-0-g9d258e13eba1
 https://github.com/intel/media-driver
 intel-vaapi-driver (master) heads/master-0-gdc20b6405a53
 https://github.com/01org/intel-vaapi-driver
 msdk (master) heads/master-0-gc6b3d1cd4569  https://github.com/Intel-
 Media-SDK/MediaSDK
 ffmpeg (master) heads/master-0-g29816e278f4f
 https://git.ffmpeg.org/ffmpeg
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7522>
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