[FFmpeg-trac] #9316(undetermined:new): nnedi af mode causes flicker at top and bottom row

FFmpeg trac at avcodec.org
Sun Jul 4 19:15:00 EEST 2021


#9316: nnedi af mode causes flicker at top and bottom row
-------------------------------------+-------------------------------------
             Reporter:  Tom B        |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  nnedi        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Tom B):

 Command: `ffmpeg -i "original.mkv" -c:v libx265 -crf 23 -vf
 nnedi=/home/tom/binary1.bin:all:af -c:a copy nnedi.mkv `

 Output:

 ```

 ffmpeg version n4.4 Copyright (c) 2000-2021 the FFmpeg developers
   built with gcc 11.1.0 (GCC)
   configuration: --prefix=/usr --disable-debug --disable-static --disable-
 stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto
 --enable-fontconfig --enable-gmp --enable-gpl --enable-ladspa --enable-
 libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-
 libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-
 libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-
 libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-
 libopenjpeg --enable-libopus --enable-libpulse --enable-librav1e --enable-
 librsvg --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh
 --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab
 --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp
 --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2
 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-
 openssl --enable-shared --enable-version3 --enable-libfdk_aac --enable-
 nonfree
   libavutil      56. 70.100 / 56. 70.100
   libavcodec     58.134.100 / 58.134.100
   libavformat    58. 76.100 / 58. 76.100
   libavdevice    58. 13.100 / 58. 13.100
   libavfilter     7.110.100 /  7.110.100
   libswscale      5.  9.100 /  5.  9.100
   libswresample   3.  9.100 /  3.  9.100
   libpostproc    55.  9.100 / 55.  9.100
 Input #0, matroska,webm, from 'original.mkv':
   Metadata:
     ENCODER         : Lavf58.76.100
   Duration: 00:00:05.08, start: 0.000000, bitrate: 4532 kb/s
   Chapters:
     Chapter #0:0: start 0.000000, end 5.000000
       Metadata:
         title           : Chapter 01
   Stream #0:0(eng): Video: mpeg2video (Main), yuv420p(tv, bt470bg, top
 first), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 1k tbn, 50 tbc
 (default)
     Metadata:
       BPS-eng         : 4979095
       DURATION-eng    : 00:28:57.000000000
       NUMBER_OF_FRAMES-eng: 43425
       NUMBER_OF_BYTES-eng: 1081086192
       SOURCE_ID-eng   : 0100E0
       _STATISTICS_WRITING_APP-eng: MakeMKV v1.16.3 linux(x64-release)
       _STATISTICS_WRITING_DATE_UTC-eng: 2021-06-29 16:06:43
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 SOURCE_ID
       DURATION        : 00:00:05.080000000
     Side data:
       cpb: bitrate max/min/avg: 9800000/0/0 buffer size: 1835008
 vbv_delay: N/A
   Stream #0:1(eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
     Metadata:
       title           : Stereo
       BPS-eng         : 192000
       DURATION-eng    : 00:28:56.800000000
       NUMBER_OF_FRAMES-eng: 54275
       NUMBER_OF_BYTES-eng: 41683200
       SOURCE_ID-eng   : 0180BD
       _STATISTICS_WRITING_APP-eng: MakeMKV v1.16.3 linux(x64-release)
       _STATISTICS_WRITING_DATE_UTC-eng: 2021-06-29 16:06:43
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 SOURCE_ID
       DURATION        : 00:00:05.024000000
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg2video (native) -> hevc (libx265))
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 x265 [info]: HEVC encoder version 3.5
 x265 [info]: build info [Linux][GCC 10.2.0][64 bit] 8bit+10bit+12bit
 x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX
 FMA3 BMI2 AVX2
 x265 [info]: Main profile, Level-3.1 (Main tier)
 x265 [info]: Thread pool created using 32 threads
 x265 [info]: Slices                              : 1
 x265 [info]: frame threads / pool features       : 5 / wpp(9 rows)
 x265 [warning]: Source height < 720p; disabling lookahead-slices
 x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
 x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
 x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 3
 x265 [info]: Keyframe min / max / scenecut / bias  : 25 / 250 / 40 / 5.00
 x265 [info]: Lookahead / bframes / badapt        : 20 / 4 / 2
 x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
 x265 [info]: References / ref-limit  cu / depth  : 3 / off / on
 x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
 x265 [info]: Rate Control / qCompress            : CRF-23.0 / 0.60
 x265 [info]: tools: rd=3 psy-rd=2.00 early-skip rskip mode=1 signhide tmvp
 x265 [info]: tools: b-intra strong-intra-smoothing deblock sao
 Output #0, matroska, to 'nnedi.mkv':
   Metadata:
     encoder         : Lavf58.76.100
   Chapters:
     Chapter #0:0: start 0.000000, end 5.000000
       Metadata:
         title           : Chapter 01
   Stream #0:0(eng): Video: hevc, yuv420p(tv, bt470bg, progressive),
 720x576 [SAR 16:15 DAR 4:3], q=2-31, 50 fps, 1k tbn (default)
     Metadata:
       BPS-eng         : 4979095
       DURATION-eng    : 00:28:57.000000000
       NUMBER_OF_FRAMES-eng: 43425
       NUMBER_OF_BYTES-eng: 1081086192
       SOURCE_ID-eng   : 0100E0
       _STATISTICS_WRITING_APP-eng: MakeMKV v1.16.3 linux(x64-release)
       _STATISTICS_WRITING_DATE_UTC-eng: 2021-06-29 16:06:43
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 SOURCE_ID
       DURATION        : 00:00:05.080000000
       encoder         : Lavc58.134.100 libx265
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
   Stream #0:1(eng): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo,
 fltp, 192 kb/s (default)
     Metadata:
       title           : Stereo
       BPS-eng         : 192000
       DURATION-eng    : 00:28:56.800000000
       NUMBER_OF_FRAMES-eng: 54275
       NUMBER_OF_BYTES-eng: 41683200
       SOURCE_ID-eng   : 0180BD
       _STATISTICS_WRITING_APP-eng: MakeMKV v1.16.3 linux(x64-release)
       _STATISTICS_WRITING_DATE_UTC-eng: 2021-06-29 16:06:43
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 SOURCE_ID
       DURATION        : 00:00:05.024000000
 frame=  252 fps= 64 q=31.8 Lsize=     825kB time=00:00:05.00
 bitrate=1351.9kbits/s speed=1.27x
 video:701kB audio:118kB subtitle:0kB other streams:0kB global headers:2kB
 muxing overhead: 0.838927%
 x265 [info]: frame I:      2, Avg QP:27.07  kb/s: 4427.80
 x265 [info]: frame P:     59, Avg QP:27.45  kb/s: 2916.88
 x265 [info]: frame B:    191, Avg QP:32.00  kb/s: 553.15
 x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
 x265 [info]: consecutive B-frames: 11.5% 3.3% 6.6% 18.0% 60.7%

 encoded 252 frames in 3.86s (65.29 fps), 1137.32 kb/s, Avg QP:30.90

 ```
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9316#comment:3>
FFmpeg <https://ffmpeg.org>
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