[FFmpeg-trac] #10261(avfilter:new): FFMPEG-QSV 1:N transcoding error/hang

[FFmpeg]

#10261: FFMPEG-QSV 1:N transcoding error/hang
----------------------------------+----------------------------------
             Reporter:  sanasar   |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avfilter  |                  Version:  6.0
             Keywords:  QSV       |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+----------------------------------
 We have identified regression with latest public FFMPEG: Command line
 below will either error out or hang.

 * version n6.0 bad
 * version a6e9d01f88 bad (Latest master)
 * version d4f853f4ed good

 Following configuration was used running on ArcticSound M
 * libva: 2.17.0
 * libva-utils: 2.17.1
 * gmmlib: 22.3.4
 * media-driver: 23.1.3
 * onevpl-gpu: 23.1.3
 * mediasdk: 23.1.3
 * oneVPL: v2023.1.2

 * Clip location
 https://repositories.intel.com/media/bbb_sunflower_1080p_60fps_4Mbps_38kframes.h265

 {{{
 ffmpeg -y -hwaccel qsv -hwaccel_device /dev/dri/renderD128 \
 -extra_hw_frames 8 -c:v hevc_qsv -re -i
 bbb_sunflower_1080p_60fps_4Mbps_38kframes.h265 \
 -filter_complex
 '[0:v]split[e_4k60][in1080p];[in1080p]scale_qsv=1920:1080[s1080p];[s1080p]split=3[e_1080p60][in720p60][in1080p30];[in720p60]scale_qsv=1280:720[s720p];[s720p]split[e_720p60][out720p60];[in1080p30]fps=fps=30[e_1080p30];[out720p60]fps=fps=30[f_720p30];[f_720p30]split[e_720p30][in_360p];[in_360p]scale_qsv=640:360[s360p];[s360p]split[e_360p30][in_288p];[in_288p]scale_qsv=352:288[s288p];[s288p]split[e_288p30][in_180p];[in_180p]scale_qsv=240:180[e_180p30]'
 \
 -map [e_4k60] -c:v hevc_qsv -preset veryslow -b:v 9M -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 18M -bufsize 36M -y -f null - \
 -map [e_1080p60] -c:v hevc_qsv -preset veryslow -b:v 5M -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 10M -bufsize 20M -y -f null - \
 -map [e_1080p30] -c:v hevc_qsv -preset veryslow -b:v 5M -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 10M -bufsize 20M -y -f null - \
 -map [e_720p60] -c:v hevc_qsv -preset veryslow -b:v 3M -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 6M -bufsize 12M -y -f null - \
 -map [e_720p30] -c:v hevc_qsv -preset veryslow -b:v 3M -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 6M -bufsize 12M -y -f null - \
 -map [e_360p30] -c:v hevc_qsv -preset veryslow -b:v 1M -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 2M -bufsize 4M -y -f null - \
 -map [e_288p30] -c:v hevc_qsv -preset veryslow -b:v 800k -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 1600k -bufsize 3200k -y -f null - \
 -map [e_180p30] -c:v hevc_qsv -preset veryslow -b:v 500k -g 256
 -look_ahead_depth 0 -extbrc 1 -b_strategy 1 -adaptive_i 0 -adaptive_b 0
 -low_power 1 -async_depth 2 -maxrate 1M -bufsize 2M -y -f null -
 }}}

 Following error is observed. Sometimes we do see hang after error is
 printed and ffmpeg needs to be killed.

 {{{
 [hevc_qsv @ 0x5566744eb380] A decode call did not consume any data: expect
 more data at input (-10)95 bitrate=N/A speed=   1x    peed=N/A
     Last message repeated 2 times
 [out_2_0 @ 0x5566749f09c0] 100 buffers queued in out_2_0, something may be
 wrong.
 [out_2_0 @ 0x5566749f09c0] 1000 buffers queued in out_2_0, something may
 be wrong.
 [out_2_0 @ 0x5566749f09c0] 10000 buffers queued in out_2_0, something may
 be wrong.
 [out_2_0 @ 0x5566749f09c0] 100000 buffers queued in out_2_0, something may
 be wrong.
 [out_2_0 @ 0x5566749f09c0] 1000000 buffers queued in out_2_0, something
 may be wrong.
 [out_2_0 @ 0x5566749f09c0] 10000000 buffers queued in out_2_0, something
 may be wrong.
 [out_2_0 @ 0x5566749f09c0] 100000000 buffers queued in out_2_0, something
 may be wrong.
 Error marking filters as finished
 Conversion failed!
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10261>
FFmpeg <https://ffmpeg.org>
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