[FFmpeg-trac] #8341(avcodec:new): FFmpeg-VAAPI VP8/VP9 encoder generates Zero byte in output

[FFmpeg]

#8341: FFmpeg-VAAPI VP8/VP9 encoder generates Zero byte in output
-------------------------------------+-------------------------------------
             Reporter:  fulinjie     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:  git-
             Keywords:  vaapi        |  master
  encode                             |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------
 System Environment
 =======
 Previously reproduced:
 Platform: KBL/ICL
 Arch: x86_64
 Kernel: 5.0.0
 Libva: c98b06d2b8c00dc4df628488b672711b3f0eb118
 iHD_driver: 5366de39a3f3b7f256b540bfa0ba088133315610
 libva-utils: 375e4eaae3377c1806e83874f9fa9b79b1f225b1
 ffmpeg: latest mainline ffmpeg

 And it still could be reproduced with the latest version of media-
 driver/ffmpeg/...

 Reproduce Steps
 ==============

 It could be reproduced with a random yuv input file.

 And the output has Zero byte.

 {{{
 ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -v verbose -f
 rawvideo -pix_fmt yuv420p -s:v 1280x720 -i ./720p_I420_1.yuv -vf
 'format=nv12,hwupload' -c:v vp8_vaapi -y out.ivf
 ffmpeg version N-95535-g9ae3b08aab Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
   configuration: --enable-libmfx --disable-optimizations --enable-debug=3
 --disable-stripping --enable-gpl --enable-libopenh264 --enable-libass
 --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-
 libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-
 libx265 --enable-nonfree
   libavutil      56. 35.101 / 56. 35.101
   libavcodec     58. 59.102 / 58. 59.102
   libavformat    58. 33.100 / 58. 33.100
   libavdevice    58.  9.100 / 58.  9.100
   libavfilter     7. 64.100 /  7. 64.100
   libswscale      5.  6.100 /  5.  6.100
   libswresample   3.  6.100 /  3.  6.100
   libpostproc    55.  6.100 / 55.  6.100
 [AVHWDeviceContext @ 0x55ea8f484f80] libva: VA-API version 1.6.0
 [AVHWDeviceContext @ 0x55ea8f484f80] libva: va_getDriverName() returns 0
 [AVHWDeviceContext @ 0x55ea8f484f80] libva: User requested driver 'iHD'
 [AVHWDeviceContext @ 0x55ea8f484f80] libva: Trying to open
 /usr/local/lib/dri//iHD_drv_video.so
 [AVHWDeviceContext @ 0x55ea8f484f80] libva: Found init function
 __vaDriverInit_1_6
 [AVHWDeviceContext @ 0x55ea8f484f80] libva: va_openDriver() returns 0
 [AVHWDeviceContext @ 0x55ea8f484f80] Initialised VAAPI connection: version
 1.6
 [AVHWDeviceContext @ 0x55ea8f484f80] VAAPI driver: Intel iHD driver -
 1.0.0.
 [AVHWDeviceContext @ 0x55ea8f484f80] Driver not found in known nonstandard
 list, using standard behaviour.
 [rawvideo @ 0x55ea8f4d6c00] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, rawvideo, from './720p_I420_1.yuv':
   Duration: 00:00:00.04, 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) -> vp8 (vp8_vaapi))
 Press [q] to stop, [?] for help
 [graph 0 input from stream 0:0 @ 0x55ea8f4e83c0] w:1280 h:720
 pixfmt:yuv420p tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
 [auto_scaler_0 @ 0x55ea8f4eb440] w:iw h:ih flags:'bicubic' interl:0
 [Parsed_format_0 @ 0x55ea8f4e5cc0] 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 @ 0x55ea8f4eb440] w:1280 h:720 fmt:yuv420p sar:0/1 ->
 w:1280 h:720 fmt:nv12 sar:0/1 flags:0x4
 [vp8_vaapi @ 0x55ea8f4e3840] Input surface format is nv12.
 [vp8_vaapi @ 0x55ea8f4e3840] Using VAAPI profile VAProfileVP8Version0_3
 (14).
 [vp8_vaapi @ 0x55ea8f4e3840] Using VAAPI entrypoint VAEntrypointEncSlice
 (6).
 [vp8_vaapi @ 0x55ea8f4e3840] Using VAAPI render target format YUV420
 (0x1).
 [vp8_vaapi @ 0x55ea8f4e3840] No quality level set; using default (40).
 [vp8_vaapi @ 0x55ea8f4e3840] RC mode: CQP.
 [vp8_vaapi @ 0x55ea8f4e3840] RC quality: 40.
 [vp8_vaapi @ 0x55ea8f4e3840] RC framerate: 25/1 (25.00 fps).
 [vp8_vaapi @ 0x55ea8f4e3840] Using intra and P-frames (supported
 references: 3 / 0).
 [vp8_vaapi @ 0x55ea8f4e3840] Driver does not support any packed headers
 (none wanted).
 Output #0, ivf, to 'out.ivf':
   Metadata:
     encoder         : Lavf58.33.100
     Stream #0:0: Video: vp8 (vp8_vaapi), 1 reference frame (VP80 /
 0x30385056), vaapi_vld, 1280x720, q=-1--1, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.59.102 vp8_vaapi
 No more output streams to write to, finishing.
 frame=    1 fps=0.0 q=-0.0 Lsize=       0kB time=00:00:00.04 bitrate=
 8.8kbits/s speed=1.39x
 video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Input file #0 (./720p_I420_1.yuv):
   Input stream #0:0 (video): 1 packets read (1382400 bytes); 1 frames
 decoded;
   Total: 1 packets (1382400 bytes) demuxed
 Output file #0 (out.ivf):
   Output stream #0:0 (video): 1 frames encoded; 1 packets muxed (0 bytes);
   Total: 1 packets (0 bytes) muxed
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)
 [AVIOContext @ 0x55ea8f4e1580] Statistics: 0 seeks, 1 writeouts
 [AVIOContext @ 0x55ea8f4df2c0] Statistics: 1382400 bytes read, 0 seeks
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8341>
FFmpeg <https://ffmpeg.org>
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