[FFmpeg-user] Decombing via screening

[Paul B Mahol]

On 4/14/20, Mark Filipak <markfilipak.windows+ffmpeg at gmail.com> wrote:
> In the command line below,
>                 I will eventually insert a screen maker --+
>                                                           ¦
> separatefields,scale=height=2*in_h:sws_flags=neighbor,--HERE--,tblend=normal[D]
>
> but first, I need to persuade 'tblend' to accept the 2 frames made by
> 'separatefields' (and scaled
> by 'scale').
> But as you can see in the next section (extracted from the log), though the
> 'height=2*in_h'
> directive works (i.e., the 1920x540 frames from 'separatefields' are scaled
> to 1920x1080), ffmpeg is
> not happy. Is it because the SARs don't match? How can I overcome that?
> Thanks!

Insert setsar=1 after scale?

>
> [Parsed_interleave_7 @ 00000282efb0a6c0] Parameters for input link input1
> (size 1920x1080, SAR 2:1)
> do not match the corresponding output link parameters (1920x1080, SAR 1:1)
> [Parsed_interleave_7 @ 00000282efb0a6c0] Failed to configure output pad on
> Parsed_interleave_7
>
>
>
> ffmpeg -report -ss 0:00 -analyzeduration 5000000000 -probesize 5000000000 -i
> "M:\Test
> Videos\23.976p.mkv" -filter_complex
> "telecine=pattern=46,split[A][B],[A]select='not(eq(mod(n+1\,5)\,3))'[C],[B]select='bitor(eq(mod(n+1\,5)\,2)\,eq(mod(n+1\,5)\,3))',separatefields,scale=height=2*in_h:sws_flags=neighbor,tblend=normal[D],[C][D]interleave,datascope=size=1920x1080:x=45:y=340:mode=color2"
> -map 0 -c:v libx264 -crf 20 -an -sn "C:\AVOut\23.976p.5.MKV"
>
> ffmpeg started on 2020-04-14 at 09:21:39
> Report written to "REPORT.LOG"
> Log level: 32
> ffmpeg version git-2020-04-03-52523b6 Copyright (c) 2000-2020 the FFmpeg
> developers
>    built with gcc 9.3.1 (GCC) 20200328
>    configuration: --enable-gpl --enable-version3 --enable-sdl2
> --enable-fontconfig --enable-gnutls
> --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray
> --enable-libfreetype
> --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
> --enable-libopenjpeg
> --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
> --enable-libsrt
> --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
> --enable-libwebp
> --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg
> --enable-lzma --enable-zlib
> --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis
> --enable-libvo-amrwbenc
> --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom
> --enable-libmfx
> --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va
> --enable-nvenc --enable-nvdec
> --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
>    libavutil      56. 42.102 / 56. 42.102
>    libavcodec     58. 77.101 / 58. 77.101
>    libavformat    58. 42.100 / 58. 42.100
>    libavdevice    58.  9.103 / 58.  9.103
>    libavfilter     7. 77.101 /  7. 77.101
>    libswscale      5.  6.101 /  5.  6.101
>    libswresample   3.  6.100 /  3.  6.100
>    libpostproc    55.  6.100 / 55.  6.100
> Input #0, matroska,webm, from 'M:\Test Videos\23.976p.mkv':
>    Metadata:
>      encoder         : libebml v1.3.9 + libmatroska v1.5.2
>      creation_time   : 2020-04-04T03:44:24.000000Z
>    Duration: 00:00:10.01, start: 0.000000, bitrate: 544 kb/s
>      Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive),
> 1920x1080 [SAR 1:1 DAR 16:9],
> 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
>      Metadata:
>        BPS-eng         : 538378
>        DURATION-eng    : 00:00:10.010000000
>        NUMBER_OF_FRAMES-eng: 240
>        NUMBER_OF_BYTES-eng: 673646
>        _STATISTICS_WRITING_APP-eng: mkvmerge v41.0.0 ('Smarra') 64-bit
>        _STATISTICS_WRITING_DATE_UTC-eng: 2020-04-04 03:44:24
>        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
> [Parsed_telecine_0 @ 00000282ecc69f00] Telecine pattern 46 yields up to 3
> frames per frame, pts
> advance factor: 4/10
> Stream mapping:
>    Stream #0:0 (h264) -> telecine
>    datascope -> Stream #0:0 (libx264)
> Press [q] to stop, [?] for help
> [Parsed_telecine_0 @ 00000282ec6f7600] Telecine pattern 46 yields up to 3
> frames per frame, pts
> advance factor: 4/10
> [Parsed_interleave_7 @ 00000282efb0a6c0] Parameters for input link input1
> (size 1920x1080, SAR 2:1)
> do not match the corresponding output link parameters (1920x1080, SAR 1:1)
> [Parsed_interleave_7 @ 00000282efb0a6c0] Failed to configure output pad on
> Parsed_interleave_7
> Error reinitializing filters!
> Failed to inject frame into filter network: Invalid argument
> Error while processing the decoded data for stream #0:0
> Conversion failed!
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".