- Cin - Cinelerra-GG Mailing Lists

bunch of HDR related books
by Andrew Randrianasulu 17 Apr '25

17 Apr '25

Someone posted 92 mb zip of some 2015-2017 era reading material for this new 'HDR' thing. May be you can find original link on doom9 but here is copy, hopefully: https://drive.google.com/file/d/1SCIqdqM4ZNBpN02zxmGe1hchpVUyqgcr/view?usp=…

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Secondary color correction in Blender 2.64
by Andrew Randrianasulu 17 Apr '25

17 Apr '25

Found this post from 2012 https://blenderartists.org/t/selective-secondary-color-correction-using-ble… ===== browneditor Nov 2012 Which color node allows direct selective secondary color correction in blender. I create group nodes with hsv keyer to color balance with a blur node to soften the range selection. It is very tedious to keep tabbing in to make small changes. please check my attachments to see if I am going in the right direction or not. [...] blendercomp <https://blenderartists.org/u/blendercomp> Nov 2012 <https://blenderartists.org/t/selective-secondary-color-correction-using-ble…> @Browneditor <https://blenderartists.org/u/browneditor>: ideally, you would want to use masks for secondary corrections. If you can easily pull a matte from your plates and use that as a mask then that’s really cool. In this case, I’d go for a mask, they’re easy to setup and animate in 2.64. If you insist on keying to create masks automatically, then it should be possible to derive a few masks by combining 3 or 4 color key nodes. Just play around with different ranges of hues per color key node and multiply the resulting mattes to combine then into a single one to control the area of interest. ==== quote end ==== there is also video note for KDENLIVE https://www.reddit.com/r/kdenlive/comments/1awa50b/kdenlive_secondary_color… original documentation for cin-HV notes: http://heroinewarrior.com/cinelerra/cinelerra.html 12.2 MASKS Masks define a region of the video to either set opaque or transparent. Another thing the mask tool does is draw paths. Paths are lines while masks are areas. Paths can be simple line drawings or outlines. Masks can be used in conjunction with another effect to isolate the effect to a certain region of the frame. A copy of one video track may be delayed slightly and unmasked in locations where the one copy has interference but the other copy doesn’t. Color correction may be needed in one section of a frame but not another. A mask can be applied to just a section of the color corrected track while the vanilla track shows through. Removal of boom microphones, airplanes, and housewives are other mask uses. The order of the compositing pipeline affects what can be done with masks. Mainly, masks are performed on the temporary after effects and before the projector. This means multiple tracks can be bounced to a masked track and projected with the same mask. ==== *I think* Blue Banana documentation mention internal to plugin mask you can use for masking out specific color/color ranges, but not sure how you use it for such case? Are we supposed to build 3 new track versions for low/mid/high correction?

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offtopic: digital cinema in avisynth
by Andrew Randrianasulu 16 Apr '25

16 Apr '25

https://forum.doom9.org/showthread.php?p=1993514 "*The Ultimate Avisynth DCP (Digital Cinema Package) creation guide"* a bit complicated (and using Windows version of programs) but apparently working up to now ;) nearly 1Tb of space used for 50 min documentary and some HEAVY cpu machine for motionjpeg2000 encoding .....

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Fwd: [FFmpeg-devel] Libtheora encoder/cingg <->ffmpeg interop?
by Andrew Randrianasulu 15 Apr '25

15 Apr '25

---------- Forwarded message --------- От: James Almer <jamrial(a)gmail.com> Date: пн, 14 апр. 2025 г., 02:56 Subject: Re: [FFmpeg-devel] Libtheora encoder/cingg <->ffmpeg interop? To: <ffmpeg-devel(a)ffmpeg.org> On 4/13/2025 8:52 PM, Andrew Randrianasulu wrote: > I was testing our libtheora encoder/muxer after updating to libtheora 1.2.0 > and noticed that ffmpeg complains about "(non)keyframe not correctly marked" Backporting commit 22aa71d4da37a4ad2b0d28deeace64b57aa2ef50 to the 7.1 branch should fix it. ===== I think this mean we better to stick to libtheora-1..1.1 until ffmpeg fix propagates? May be add just postprocessing fix so build with system's libtheora (possibly 1.2.0 in near future as Arch and termux move to bleeding edge) will not break it visually? It sort of sad that seemingly stable library update (one in 15 years) resulted in this ..... _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel(a)ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request(a)ffmpeg.org with subject "unsubscribe".

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Two links on ICC in MP4
by Andrew Randrianasulu 14 Apr '25

14 Apr '25

Starter thread, at least back in time (2022) it was not easy/possible to use ffmpeg for adding custom icc profile to mp4 container but MP4Box from gpac project was up to task: https://superuser.com/questions/1739082/embedding-a-custom-icc-profile-in-a… ===== Creating MP4 video without ICC profile (for testing): ffmpeg -y -loop 1 -framerate 1 -i icc_chelsea.png -vcodec libx265 -t 10 chelsea.mp4 Extracting the ICC profile: magick icc_chelsea.png profile.icc Adding the ICC profile to the MP4 video file using MP4Box: MP4Box -add video.mp4#video:colr=prof,profile.icc -new icc_video.mp4 Testing with FFprobe: ffprobe icc_chelsea.mp4 ===== end of quotation ==== As far as I understand in this case idea was to embed display profile into media. But few apps outside of Final Cut Pro/quicktime can do anything useful about this info? https://forum.luminous-landscape.com/index.php?topic=129232.0 this one from ~2019. It states that instead of more flexible color management video world used few fixed mode monitor color spaces, and whole process was a bit manual if your input image/video was not in one of those. I think we hit crudest form of this limitation when we try to fade titler's text over png image. It sort of flashes, due to missing (unapplied) 2.4 gamma step?

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Libtheora encoder/cingg <->ffmpeg interop?
by Andrew Randrianasulu 13 Apr '25

13 Apr '25

I was testing our libtheora encoder/muxer after updating to libtheora 1.2.0 and noticed that ffmpeg complains about "(non)keyframe not correctly marked" ~/cinelerra/cinelerra-5.1 $ ffmpeg -i ~/svt_t.ogg -f null /dev/null ffmpeg version 7.1.1 Copyright (c) 2000-2025 the FFmpeg developers built with Android (12470979, +pgo, +bolt, +lto, +mlgo, based on r522817c) clang version 18.0.3 ( https://android.googlesource.com/toolchain/llvm-project d8003a456d14a3deb8054cdaa529ffbf02d9b262) configuration: --arch=aarch64 --as=aarch64-linux-android-clang --cc=aarch64-linux-android-clang --cxx=aarch64-linux-android-clang++ --nm=llvm-nm --ar=llvm-ar --ranlib=llvm-ranlib --pkg-config=/home/builder/.termux-build/_cache/android-r27c-api-24-v1/bin/pkg-config --strip=llvm-strip --cross-prefix=aarch64-linux-android- --disable-indevs --disable-outdevs --enable-indev=lavfi --disable-static --disable-symver --enable-cross-compile --enable-gnutls --enable-gpl --enable-version3 --enable-jni --enable-lcms2 --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libharfbuzz --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenmpt --enable-libopus --enable-librav1e --enable-librubberband --enable-libsoxr --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-mediacodec --enable-opencl --enable-shared --prefix=/data/data/com.termux/files/usr --target-os=android --extra-libs=-landroid-glob --disable-vulkan --enable-neon --disable-libfdk-aac libavutil 59. 39.100 / 59. 39.100 libavcodec 61. 19.101 / 61. 19.101 libavformat 61. 7.100 / 61. 7.100 libavdevice 61. 3.100 / 61. 3.100 libavfilter 10. 4.100 / 10. 4.100 libswscale 8. 3.100 / 8. 3.100 libswresample 5. 3.100 / 5. 3.100 libpostproc 58. 3.100 / 58. 3.100 [ogg @ 0xb40000710c40f4d0] Broken file, keyframe not correctly marked. Input #0, ogg, from '/data/data/com.termux/files/home/svt_t.ogg': Duration: 00:00:13.44, start: 0.000000, bitrate: 658 kb/s Stream #0:0: Video: theora, yuv420p(bt470bg/bt470bg/bt709), 1440x1080 [SAR 1333333:1000000 DAR 888894:500003], 25 tbr, 25 tbn Metadata: ENCODER : Cinelerra Infinity Stream mapping: Stream #0:0 -> #0:0 (theora (native) -> wrapped_avframe (native)) Press [q] to stop, [?] for help Output #0, null, to '/dev/null': Metadata: encoder : Lavf61.7.100 Stream #0:0: Video: wrapped_avframe, yuv420p(bt470bg/bt470bg/bt709, progressive), 1440x1080 [SAR 1333333:1000000 DAR 888894:500003], q=2-31, 200 kb/s, 25 fps, 25 tbn Metadata: encoder : Lavc61.19.101 wrapped_avframe [ogg @ 0xb40000710c40f4d0] Broken file, keyframe not correctly marked. [ogg @ 0xb40000710c40f4d0] Broken file, keyframe not correctly marked.=8.24x Last message repeated 1 times [ogg @ 0xb40000710c40f4d0] Broken file, non-keyframe not correctly marked. Last message repeated 36 times [ogg @ 0xb40000710c40f4d0] Broken file, non-keyframe not correctly marked.9x Last message repeated 58 times [out#0/null @ 0xb4000070bc40f7f0] video:144KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown frame= 336 fps=264 q=-0.0 Lsize=N/A time=00:00:13.44 bitrate=N/A speed=10.6x I found this recent bug on libtheora gitlab, not sure if last comment is true or misses something when it comes to ffmpeg? https://gitlab.xiph.org/xiph/theora/-/issues/2311 some other search hits: https://progress.opensuse.org/issues/42047 https://github.com/Enselic/recordmydesktop/issues/23

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Some changes for testing purposes for clipping and speed
by Phyllis Smith 13 Apr '25

13 Apr '25

An x86 AppImage for older Operating Systems AND with the alternative shortcut set is at: https://cinelerra-gg.org/download/testing/cin-x86_alternative.AppImage Hoping *IgorBeghetto* might get a chance to test this weekend. Changes included are for - Blur plugin should prevent clipping (Andrea has tested successfully) - Title plugin should prevent clipping (Andrea has tested successfully) - Because BT #672 (https://www.cinelerra-gg.org/bugtracker/view.php?id=672) was fixed without real understanding of the underlying problem, testing of Speed and especially Bump Autos (which is what I think that the original blunder fix addressed) would be helpful. Explanation of Bump Autos is still online at: https://cinelerra-gg.org/download/testing/bump_autos.pdf Feedback welcome. Thanks, Phyllis

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ffmpeg.git test compile fail
by Andrew Randrianasulu 12 Apr '25

12 Apr '25

ffmpeg shallow git copy commit 890b8da1ce27fd365eaffefc7efcbadae9f01f2a our patches 2 and 8 fail, but this is not really my point yet .... ffmpeg.C:313:42: error: 'avcodec_close' was not declared in this scope; did you mean 'avio_close'? ffmpeg.C:476:33: error: 'avcodec_close' was not declared in this scope; did you mean 'avio_close'? ffmpeg.C:1307:37: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'interlaced_frame' ffmpeg.C:1309:37: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'interlaced_frame' ffmpeg.C:1309:66: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'top_field_first' ffmpeg.C:1311:37: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'interlaced_frame' ffmpeg.C:1311:67: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'top_field_first' ffmpeg.C:1340:36: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'key_frame' ffmpeg.C:1512:24: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'interlaced_frame' ffmpeg.C:1513:24: error: 'AVFrame' {aka 'struct AVFrame'} has no member named 'top_field_first' ffmpeg.C:3847:29: error: 'av_stream_get_side_data' was not declared in this scope; did you mean 'av_frame_get_side_data'? mplayer switched for now to branch 7.1 until it get updates. i see in doc/APIchanges 2023-05-04 - 0fc9c1f6828 - lavu 58.7.100 - frame.h Deprecate AVFrame.interlaced_frame, AVFrame.top_field_first, and AVFrame.key_frame. Add AV_FRAME_FLAG_INTERLACED, AV_FRAME_FLAG_TOP_FIELD_FIRST, and AV_FRAME_FLAG_KEY flags as replacement. but not sure how to use them yet.

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Can you re-add old ffnvcodec archive?
by Andrew Randrianasulu 11 Apr '25

11 Apr '25

but under different name like may be ffnvcodec-old.tar.xz ? I tried my Slackware 15.0 x64 + nvidia 470.xx proprietary drivers and h264-nvenc only works with old headers (at around 100 fps for 720p) Downloading and replacing archive is not big deal, but can be surprizing for user less versed in intimate relation between driver version and ffmpeg/ffnvheaders. ref: (kdenlive and GF630) https://www.linux.org.ru/forum/desktop/17219674

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static hdr metadata generation ....
by Andrew Randrianasulu 11 Apr '25

11 Apr '25

Found this code on github via some comment discussion https://github.com/HDRWCG/HDRStaticMetadata ah, such a mix of opencv/qtgui! but may be it exposes enough to make it into pure c++ pass? Still no idea how dynamic metadata work .. there are standarts but they a bit hard to read for me: https://pub.smpte.org/pub/st2094-10/st2094-10-2021.pdf https://pub.smpte.org/pub/st2094-40/st2094-40-2020.pdf Tonemapping using those already supported by ffmpeg's libplacebo filter, but this one need Vulkan driver/device! And how to *construct* those types of metadata is not clear for me .....

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