February 2021 - ffmpeg-user - lists.ffmpeg.org

minterpolate problem
by Mark Filipak (ffmpeg) 04 Feb '21

04 Feb '21

Note error at the end of the report. I suspect the problem is that 'fps=60000/1001:mi_mode=mci=mc_mode=obmc:scd=fdiff:scd_threshold=10' needs some sort of internal delimiters, but I can't figure out what they would be. ffmpeg -i SOURCE -map 0 -filter_complex "split[1][2], \ [1]telecine=pattern=55, select=not(eq(mod(n\,5)\,2))[3], \ [2]minterpolate=fps=60000/1001:mi_mode=mci=mc_mode=obmc:scd=fdiff:scd_threshold=10, \ select=eq(mod(n\,5)\,2)[4], \ [3][4]interleave" \ -codec:v libx265 -x265-params "crf=16:qcomp=0.60" -codec:a copy -codec:s copy TARGET ffmpeg started on 2021-01-26 at 19:49:34 Report written to "ffmpeg-20210126-194934.log" Log level: 32 Command line: ffmpeg -i "source=24FPS.mkv" -map 0 -filter_complex "split[1][2], [1]telecine=pattern=55, select=not(eq(mod(n\\,5)\\,2))[3], [2]minterpolate=fps=60000/1001:mi_mode=mci=mc_mode=obmc:scd=fdiff:scd_threshold=10, select=eq(mod(n\\,5)\\,2)[4], [3][4]interleave" -codec:v libx265 -x265-params "crf=16:qcomp=0.60" -codec:a copy -codec:s copy "target=60FPS {telecine55[A.a][A.a][B.b][B.b]}{minterpolate=fps=60[A.b]}interleave = [A.a][A.a][A~b][B.b][B.b].mkv" ffmpeg version N-100679-g24dc6d386c Copyright (c) 2000-2021 the FFmpeg developers built with gcc 9.3-win32 (GCC) 20200320 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-opencl --enable-libvmaf --enable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --enable-libglslang --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --enable-libvidstab --enable-libx264 --enable-libx26 libavutil 56. 63.101 / 56. 63.101 libavcodec 58.117.101 / 58.117.101 libavformat 58. 65.101 / 58. 65.101 libavdevice 58. 11.103 / 58. 11.103 libavfilter 7. 96.100 / 7. 96.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 [matroska,webm @ 000001ab9c296600] Could not find codec parameters for stream 3 (Subtitle: hdmv_pgs_subtitle (pgssub)): unspecified size Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options Input #0, matroska,webm, from 'source=24FPS.mkv': Metadata: encoder : libebml v1.4.0 + libmatroska v1.6.2 creation_time : 2021-01-23T03:12:17.000000Z Duration: 00:00:20.11, start: 0.000000, bitrate: 26228 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 : 24046529 DURATION-eng : 00:00:20.020000000 NUMBER_OF_FRAMES-eng: 480 NUMBER_OF_BYTES-eng: 60176441 _STATISTICS_WRITING_APP-eng: mkvmerge v51.0.0 ('I Wish') 64-bit _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-23 03:12:17 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES Stream #0:1(eng): Audio: dts (DTS-HD MA), 48000 Hz, stereo, s32p (24 bit) (default) Metadata: BPS-eng : 2085565 DURATION-eng : 00:00:20.096000000 NUMBER_OF_FRAMES-eng: 1884 NUMBER_OF_BYTES-eng: 5238940 _STATISTICS_WRITING_APP-eng: mkvmerge v51.0.0 ('I Wish') 64-bit _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-23 03:12:17 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES Stream #0:2(eng): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s Metadata: BPS-eng : 192000 DURATION-eng : 00:00:20.096000000 NUMBER_OF_FRAMES-eng: 628 NUMBER_OF_BYTES-eng: 482304 _STATISTICS_WRITING_APP-eng: mkvmerge v51.0.0 ('I Wish') 64-bit _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-23 03:12:17 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES Stream #0:3(eng): Subtitle: hdmv_pgs_subtitle Metadata: BPS-eng : 0 DURATION-eng : 00:00:00.000000000 NUMBER_OF_FRAMES-eng: 0 NUMBER_OF_BYTES-eng: 0 _STATISTICS_WRITING_APP-eng: mkvmerge v51.0.0 ('I Wish') 64-bit _STATISTICS_WRITING_DATE_UTC-eng: 2021-01-23 03:12:17 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES [Parsed_telecine_1 @ 000001ab9c726dc0] Telecine pattern 55 yields up to 3 frames per frame, pts advance factor: 4/10 [minterpolate @ 000001ab9c82e040] [Eval @ 0000004cbfbfe490] Invalid chars '=mc_mode=obmc' at the end of expression 'mci=mc_mode=obmc' [minterpolate @ 000001ab9c82e040] Unable to parse option value "mci=mc_mode=obmc" [minterpolate @ 000001ab9c82e040] [Eval @ 0000004cbfbfe4b0] Invalid chars '=mc_mode=obmc' at the end of expression 'mci=mc_mode=obmc' [minterpolate @ 000001ab9c82e040] Unable to parse option value "mci=mc_mode=obmc" [minterpolate @ 000001ab9c82e040] Error setting option mi_mode to value mci=mc_mode=obmc. [Parsed_minterpolate_3 @ 000001ab9c893d40] Error applying options to the filter. [AVFilterGraph @ 000001ab9d11d4c0] Error initializing filter 'minterpolate' with args 'fps=60000/1001:mi_mode=mci=mc_mode=obmc:scd=fdiff:scd_threshold=10' Error initializing complex filters. Invalid argument

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concat a/v desync (only in MPC-HC)
by basinilya＠gmail.com 04 Feb '21

04 Feb '21

Hi List. I asked this on stackexchange, but never got an answer. ( https://video.stackexchange.com/q/33173/11453 ) I'm concatenating .ts chunks intended for an HLS player into a single .mp4 video. These chunks possess same stream properties, however, some chunks have audio stream shorter than video stream and in that case the resulting clip has audio artifacts when playing in Media Player Classic (MPC-HC). Workaround: demux video and audio streams into separate .m4a and .m4v files, concatenate them and then mux again. Goal: create single clips from .ts chunks *without intermediate files* Please help me find proper ffmpeg flags. I have created sample chunks (this repo) <https://github.com/basinilya/ffconcat-question> out of a freeware cartoon to demonstrate the problem. he chunk |516-x.ts| has audio stream 50ms shorter than video and in |517-x.ts| it's longer. Download: https://github.com/basinilya/ffconcat-question/archive/master.zip <https://github.com/basinilya/ffconcat-question/archive/master.zip> ffmpeg -y -i playlist-x.ffconcat -c copy result.mp4 The created `result.mp4` is played fine in `ffplay` or Windows Media Player, but there's a short silence in MPC-HC in the second half of the clip. Workaround script: ffmpeg -y -i 516-x.ts -an -c:v copy 516-x.m4v ffmpeg -y -i 516-x.ts -vn -c:a copy 516-x.m4a ffmpeg -y -i 517-x.ts -an -c:v copy 517-x.m4v ffmpeg -y -i 517-x.ts -vn -c:a copy 517-x.m4a ffmpeg -y -i playlist-x-a.ffconcat -c copy result.m4a ffmpeg -y -i playlist-x-v.ffconcat -c copy result.m4v ffmpeg -y -i result.m4v -i result.m4a -c copy result-good.mp4

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Filter just the 1st audio channel of the input.
by Marco Mircoli 03 Feb '21

03 Feb '21

Hello, wandering if it is possible to process just the 1st audio channel of an input. I don't know how many channels I will have as input, but I know that I have to process just the 1st and the others I have not to considerate. INPUT from mono to multichannel filters..... OUTPUT just one channel (mono) I've tried this but doesn't works ffmpeg -i FILE_FROM -map_channel 0.0.0 -af highpass=f=70,adeclick,loudnorm=I=-16.5:TP=-1.5:LRA=7 FILE_TO Any suggest? Thanks. S.

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Publish a HLS stream via a HTTPS server with ffmpeg and nginx.
by Hongyi Zhao 03 Feb '21

03 Feb '21

Hi, On Ubuntu 20.04, I've built the docker image based my project located at <https://github.com/hongyi-zhao/docker-nginx-rtmp>. The SSL relative configuration has been enabled in the nginx.conf file used by the above docker image, see <https://github.com/hongyi-zhao/docker-nginx-rtmp/blob/master/nginx.conf> for the detailed info. I then tried to stream the camera using HLS, as described below. Publish the stream: $ docker run -it -p 1935:1935 -p 8000:80 --rm nginx-rtmp $ ffmpeg -f pulse -i default -f v4l2 -r 30 -s 1920x1080 -i /dev/video0 -c:v libx264 -preset veryfast -b:v 3000k -maxrate 3000k -bufsize 3000k -vf "scale=1280:-1,format=yuv420p" -g 60 -c:a aac -b:a 128k -ar 44100 -force_key_frames "expr:gte(t,n_forced*4)" -f flv "rtmp://localhost:1935/stream/surveillance" As for watching the stream, I tried to use ffplay with http and https protocal respectively, but the former can successfully play the stream, the latter failed. The used commands are shown below: $ ffplay http://localhost:8000/live/surveillance.m3u8 $ ffplay https://localhost:8000/live/surveillance.m3u8 ffplay version N-100814-g911ba8417e Copyright (c) 2003-2021 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-17ubuntu1~20.04) configuration: --enable-gpl --enable-nonfree --enable-version3 --enable-debug --enable-ffplay --enable-indev=sndio --enable-outdev=sndio --enable-fontconfig --enable-frei0r --enable-openssl --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg --enable-rpath --enable-shared --enable-avisynth --enable-chromaprint --enable-gcrypt --enable-ladspa --enable-libaribb24 --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcelt --enable-libcdio --enable-libcodec2 --enable-libdc1394 --enable-libfdk-aac --enable-libflite --enable-libfontconfig --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libklvanc --enable-liblensfun --enable-libmodplug --enable-libopenh264 --enable-libopenmpt --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librtmp --enable-libshine --enable-libsnappy --enable-libssh --enable-libtesseract --enable-libtwolame --enable-libv4l2 --enable-libxavs2 --enable-libdavs2 --enable-libxcb --enable-libxcb-shm --enable-libxcb-xfixes --enable-libxcb-shape --enable-libzmq --enable-lv2 --enable-libmysofa --enable-openal --enable-opencl --enable-opengl --enable-pocketsphinx --enable-vulkan --enable-libdrm --enable-libmfx --enable-pic --enable-lto --enable-hardcoded-tables --enable-memory-poisoning --enable-ftrapv --enable-linux-perf --enable-libsvtav1 libavutil 56. 63.101 / 56. 63.101 libavcodec 58.119.100 / 58.119.100 libavformat 58. 65.101 / 58. 65.101 libavdevice 58. 11.103 / 58. 11.103 libavfilter 7. 97.100 / 7. 97.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 [tls @ 0x7f04f0004680] error:1408F10B:SSL routines:ssl3_get_record:wrong version number https://localhost:8000/live/surveillance.m3u8: Input/output error Any hints/notes/comments for solving this problem are highly appreciated. Regards -- Assoc. Prof. Hongyi Zhao <hongyi.zhao(a)gmail.com> Theory and Simulation of Materials Hebei Polytechnic University of Science and Technology engineering NO. 552 North Gangtie Road, Xingtai, China

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DASH with Thumbnails
by Mar Andrés López 03 Feb '21

03 Feb '21

Dear All, I am building a DASH VideoPlayer and I need the functionality of viewing thumbnails when scrolling de time bar of the video player. ¿Does FFmpeg support this functionality of adding thumbnails to .mpd? My question is the same as this one retrieved from https://stackoverflow.com/questions/60429301/ffmpeg-dash-with-tiles-of-thum…: "As of DASH-IF IOP version 4.2, section 6.2.6 defines the notion of image-based tracks in DASH: https://dashif.org/docs/DASH-IF-IOP-v4.3.pdf. This is the ability to have an adaption set made up of mime type images that themselves are a strip of low resolution thumbnails. A player will use these thumbnails when the user hovers their mouse over the video timeline and get a preview of the the frame at that approximate timecode. Theo player website has a page dedicated to this function for playback: https://www.theoplayer.com/blog/in-stream-thumbnail-support-dvr-dash-streams I need to generate a dash stream (not live) using ffmpeg that also contains these thumbnails. I already have an ffmpeg command that will generate the film strip of jpgs which outputs a thumbnail every 5 seconds of input video and joins 5 of these together in a single jpg: ffmpeg -i INPUT -q:v 20 -vf "select=not(mod(n\,125)),scale=480:270,tile=5x1" -vsync vfr output%d.jpg and the mpeg dash itself: ffmpeg -i INPUT -y -map 0 -acodec aac -ac 2 -ar 48000 -s 960x540 -vcodec libx264 -f dash -preset veryfast -b:v:2 1500k -seg_duration 2 output.mpd" But I cannot find a way in ffmpeg to include the thumbnails in the dash mpd file. A lot of thanks, Regards P Please consider the environment before printing this e-mail.

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Dell Optiplex server for ffmpeg-user
by Mark Filipak (ffmpeg) 02 Feb '21

02 Feb '21

I have a spare Dell Optiplex that used to have ClarkConnect on it. I'd like to set it up as a headless server for use by the ffmpeg-list as a drop target (and perhaps other uses). If you, dear reader, have set up a headless Linux server would like to share your experiences, kindly respond. I would put it in my DMZ and make it accessible solely via IP. I prefer to not have to create accounts. A dropbox-style page and transfer ticket function would be terrific. -- Someone's sneaking in and turning up the flame so that my food burns. I'm sure of it. And the older I get, the more sure of it I become.

1 0

NV12 devices/players compatibility
by Alessandro Molon 02 Feb '21

02 Feb '21

Hi All, I know this is not strictly related to FFMPEG but please don’t insult me 😊 I normally transcode using ffmpeg with h264_nvenc, that produces a NV12 output, then I convert it in pix_fmt yuv420p before chunking in HLS/DASH But this conversion, when I do “all in hardware” transcoding in multiple profiles forces me to create quite complex filters. So I’d like to simplify the filters and just use NV12 end to end. Does anybody know realisticly how many devices/players out there can actually play a NV12 stream? Thanks in advance, Cheers Alex

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Re: [FFmpeg-user] FFmpeg 4.3.1 failing to build for x86_64
by Vineeth, Surya 02 Feb '21

02 Feb '21

Hi Team, Any update on this issue? From: "Vineeth, Surya" <Surya.Vineeth(a)Honeywell.com> Date: Monday, 1 February 2021 at 11:48 AM To: "ffmpeg-user(a)ffmpeg.org" <ffmpeg-user(a)ffmpeg.org> Subject: FFmpeg 4.3.1 failing to build for x86_64 Hi Team, I am facing error while building ffmpeg for x66_64 architecture. The error says “ERROR: openssl not found”. For all other architecture like “i386 armv7s arm64 armv7”, it works fine. Kindly help in resolving this issue. Attaching the log file for more information. Regards, Surya Vineeth

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SCTE-35 implementation already (bounty)
by MediaStream 02 Feb '21

02 Feb '21

Looking for SCTE-35 pass through implementation: 1. Extract SCTE-35 from MPEG-TS. 2. Translate timing of the original SCTE-35 events to match timing in the output file appropriately or keep timing as is. 3. Signal encoder to force key frames at the boundaries of the SCTE-35 event. 4. Inject SCTE-35 messaging into output MP4 files as emsg and into MPD and M3U8 manifests if/as needed. More info: https://www.w3.org/TR/media-timed-events/#scte-35 https://www.tvtechnology.com/opinions/scte10435-and-beyond-a-look-at-ad-ins… source TS file with SCTE-35 also saved as ES and XML: https://www.mediafire.com/folder/zv20csqeo1ixt/ Bounty of $2,500.00 USD (up to Oct 2020)

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harware encoding
by manuel perrotta 02 Feb '21

02 Feb '21

ffmpeg -i PradaMens.mkv -i IFNMASK1920.png -filter_complex overlay=1: -acodec copy -vcodec h264 PradaMens.mp4 what i sthe best and most powerful / fast command to reencode a file like this if I have intel I7 9700 processor and NVidia RTX 2060 16GB Ram and I need to encode and place watermark on 100.000 videos in batch

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