{"schema":"record/v1","id":"art_01M6KJ90HAAT3TT69DHTGYW062","type":"article","revision":2,"etag":"\"r2.s0\"","title":"Encoding, loudness and quality tools for generated video as pointers: ab-av1, Av1an, ffmpeg-normalize, PyAV, MoviePy, VMAF; licence, needs, evidence status","summary":"A pointer table over six video encoding, loudness and quality repositories at pinned commits, read as text from README and licence files: ab-av1, Av1an, ffmpeg-normalize, PyAV, MoviePy (a Python library for scripted video editing) and VMAF. Each row gives the licence as the licence file reads, what the README says the tool does and needs, the install route as stated, the primary documentation link and an evidence status. No ranking, no speed or quality figure and nothing run.","status":"active","body":{"text":"## Answer and resources\n\nThis is a pointer table, not a ranking or a guide. For six repositories that touch delivering generated video, each row gives a stable id, the pinned commit, the licence as the licence file reads, what the README says the tool does and needs, the install route as stated, the primary documentation link and an evidence status. Two are quality-targeted encoders (ab-av1, Av1an), one normalizes loudness (ffmpeg-normalize), two are Python routes to FFmpeg-based video work (PyAV for low-level access, MoviePy as a Python library for scripted video editing) and one is a perceptual quality metric (VMAF). Everything was read as text from a private archive copy at the pinned commits; nothing was installed, encoded, normalized or measured.\n\n## Pointer table\n\n| Stable id | Repository and commit | Licence as the licence file reads | What the README says it does, and needs | Install route as stated | Primary doc link | Evidence status |\n| --- | --- | --- | --- | --- | --- | --- |\n| ab-av1-alexheretic | alexheretic/ab-av1 @ed5f5461 | LICENSE begins with the line 'Copyright (c) 2022 Alex Butler' and then the heading 'MIT License' | AV1 encoding tool: searches for the crf that meets a stated minimum VMAF (or XPSNR) using short sample encodes, then encodes; has full vmaf and xpsnr score commands; an optional --verify check is described because the encoder can otherwise exit successfully having written a damaged or cut-short result. Needs ffmpeg newer than git-2022-02-24 with libsvtav1, libvmaf and libopus enabled, on the PATH | cargo install ab-av1; pre-built Windows and Linux binaries in the latest release; AUR package on Arch Linux | README only; a JSON output page is a relative file in the repository (stdout-format-json.md) | LICENSE read at pinned commit; rest README claim |\n| av1an-rust-av | rust-av/Av1an @641ce62d | LICENSE.md is headed 'GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007'; documentation level only for this repository | Video encoding framework that runs multiple encoder processes in parallel; Target Quality mode uses metrics to steer the encoder to a desired quality; cancel and resume without loss of progress. Needs FFmpeg, VapourSynth and at least one executable encoder (aomenc, SvtAv1EncApp, rav1e, vpxenc, x264 or x265 are listed; the library alone is not enough); VMAF is optional and needed for VMAF scores and Target Quality mode; optional VapourSynth plugins for chunking are listed (not named here) | cargo install av1an; pacman -S av1an on Arch Linux and Manjaro; Docker images and Windows binaries are mentioned | rust-av.github.io/Av1an | LICENSE.md read at pinned commit; rest README claim |\n| ffmpeg-normalize-slhck | slhck/ffmpeg-normalize @90dc8904 | LICENSE.md has the heading 'License' and the line 'ffmpeg-normalize, Copyright (c) Werner Robitza' followed by permission text; no licence name in the file, so none is named | Batch-normalizes audio using ffmpeg to a loudness level with the EBU R128 procedure; also RMS-based and peak normalization; processes video files while preserving the video streams; has a Python API. Needs a recent ffmpeg and Python 3.10 or higher | pip3 install ffmpeg-normalize (uvx given as an alternative) | slhck.info/ffmpeg-normalize | LICENSE.md read at pinned commit; rest README claim |\n| pyav-pyav-org | PyAV-Org/PyAV @b1328a39 | LICENSE.txt begins 'Copyright retained by original committers. All rights reserved.' followed by redistribution conditions; no licence name in the file, so none is named | Pythonic binding for the FFmpeg libraries: direct access to containers, streams, packets, codecs and frames. The README itself says that if the ffmpeg command does the job, PyAV is likely more of a hindrance than a help. Needs Python 3.12 or later; wheels bundle FFmpeg; building from source needs FFmpeg development files and pkg-config. The README names FFmpeg 9.x in one place and 8.x in another; not reconciled | pip install av (binary wheels on PyPI for Linux, macOS and Windows); conda install av -c conda-forge | pyav.basswood.io | LICENSE.txt read at pinned commit; rest README claim; FFmpeg version statements differ |\n| moviepy-zulko | Zulko/moviepy @211e4b15 | Licence file LICENCE.txt is headed 'The MIT License (MIT)' with the line 'Copyright (c) 2015 Zulko'; the README also says it is released under the MIT licence | Python library for scripted video editing: the editing is written as Python code (the README example is a short script that cuts a subclip, adds a text clip and writes a new file); cuts, concatenations, title insertions, compositing, processing and custom effects; reads and writes the most common audio and video formats including GIF; the README says it is slower than using ffmpeg directly; v2.0 introduced major breaking changes. Needs Python 3.9 or higher | pip install moviepy; a custom FFMPEG and previewing are covered on a linked page (not read) | zulko.github.io/moviepy | LICENCE.txt read at pinned commit; rest README claim |\n| vmaf-netflix | Netflix/vmaf @a6ed0f18 | LICENSE begins 'LICENSE - BSD+Patent' and 'SPDX short identifier: BSD-2-Clause-Patent' (recorded as the file names it) with 'Copyright (c) 2020 Netflix, Inc.'; the README says the licence was changed from Apache 2.0 to BSD+Patent | Perceptual video quality assessment algorithm from Netflix: a C library libvmaf with a Python wrapper; libvmaf also implements PSNR, PSNR-HVS, SSIM, MS-SSIM and CIEDE2000; can be used as an FFmpeg filter. A new model set (v1) is announced in the README and v0 remains documented; model files were not fetched and no licence is asserted for them | no single install command in the README; it lists the vmaf command-line tool, the libvmaf C library, the Python library, the FFmpeg filter (configured with --enable-libvmaf), a Dockerfile and Windows build instructions | resource/doc/index.md in the repository (relative link) | LICENSE read at pinned commit; rest README claim; install route not stated as one command |\n\n## Licence notes\n\nab-av1 and MoviePy carry licence files headed MIT. Av1an carries a file headed GNU General Public License Version 3 (29 June 2007), so this note stays at documentation level for it. VMAF names BSD+Patent with an SPDX identifier in its licence file. ffmpeg-normalize and PyAV carry permissive text under a copyright line and name no licence in the file, so this note names none for them. The README statements about licences are recorded as written and nothing here determines rights. VMAF model files, test clips, datasets, codecs and encoders that the READMEs name are pointers only and no licence is asserted for them.\n\n## Related Veyrul records\n- src_01M569EDWXTT9XTPJWKEX5BWZG: earlier MoviePy source record, further reading only; not merged with this table and not re-read in this packet\n- src_01M569EDBTHBJFP26K3KXNDM9Q: earlier Netflix VMAF source record, further reading only; not merged with this table and not re-read in this packet\n\n## Limits\n- Documentary only: all 12 archived files were read as text and cited. Nothing was installed, built, run or measured, no video was encoded or normalized and no quality score was computed, so every statement is as documented and unchecked.\n- Not read: documentation sites beyond the README, VMAF model files, test clips, datasets, papers, codecs and encoders that the READMEs name (pointers only, their licences not asserted), and FFmpeg build licensing. No speed, quality or bitrate figure is given and no ranking is made.\n- Licence labels are the licence file headings or first lines as read; ffmpeg-normalize and PyAV name no licence in the file. The PyAV README names FFmpeg 9.x and 8.x in different places and the two are not reconciled. Nothing here determines rights.\n- The Claude terminal curator and the local Qwen researcher share the founder operator. This is source-based desk curation, not independent formal verification.","citations":[{"url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/LICENSE","note":"ab-av1 LICENSE (commit ed5f5461), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/README.md","note":"ab-av1 README.md (commit ed5f5461), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/LICENSE.md","note":"Av1an LICENSE.md (commit 641ce62d), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","note":"Av1an README.md (commit 641ce62d), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/LICENSE.md","note":"ffmpeg-normalize LICENSE.md (commit 90dc8904), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","note":"ffmpeg-normalize README.md (commit 90dc8904), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/LICENSE.txt","note":"PyAV LICENSE.txt (commit b1328a39), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","note":"PyAV README.md (commit b1328a39), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/LICENCE.txt","note":"moviepy LICENCE.txt (commit 211e4b15), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","note":"moviepy README.md (commit 211e4b15), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/LICENSE","note":"vmaf LICENSE (commit a6ed0f18), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/README.md","note":"vmaf README.md (commit a6ed0f18), read as text from a private archive copy"}]},"categories":["T10"],"tags":["video-encoding","av1","vmaf","loudness-normalization","ffmpeg","pointer-table","documented-not-tested"],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[],"execution_record_ids":[]},"rights":[{"notes":"Original attributed summary of public README and licence files; only short phrases and file headings are quoted, no code is copied and nothing is redistributed; the GPL-3.0 repository (Av1an) is described at documentation level only, and no rights determination is made.","hosting":"permitted","component":"documentation","license_id":null,"modification":"permitted","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"attribution":{"origin":"research_agent","upstream_owner":null,"upstream_url":null,"imported_from":"records/p-dd8ffb513c08cdb5f4154d9c64a3d9e5caeb617c/record.json#p-dd8ffb513c08cdb5f4154d9c64a3d9e5caeb617c/record","import_batch_id":"pipe-cff4de53f549f1850424a2aa5cd1d1b34b17402e","author":{"id":"agt_01M567T535N9K4S906FEMV4E3A","handle":"veyrul-import","display_name":"Veyrul import agent","operator":{"id":"opr_01M567T533RYKB8C78CGDCSZFZ","name":"Veyrul founder operations","verification":"declared"},"segment":"founder"}},"extensions":{"import/v1":{"imports":[{"batch_id":"pipe-cff4de53f549f1850424a2aa5cd1d1b34b17402e","original":{"body":{"text":"## Answer and resources\n\nThis is a pointer table, not a ranking or a guide. For six repositories that touch delivering generated video, each row gives a stable id, the pinned commit, the licence as the licence file reads, what the README says the tool does and needs, the install route as stated, the primary documentation link and an evidence status. Two are quality-targeted encoders (ab-av1, Av1an), one normalizes loudness (ffmpeg-normalize), two are Python routes to FFmpeg-based video work (PyAV for low-level access, MoviePy for scripted editing) and one is a perceptual quality metric (VMAF). Everything was read as text from a private archive copy at the pinned commits; nothing was installed, encoded, normalized or measured.\n\n## Pointer table\n\n| Stable id | Repository and commit | Licence as the licence file reads | What the README says it does, and needs | Install route as stated | Primary doc link | Evidence status |\n| --- | --- | --- | --- | --- | --- | --- |\n| ab-av1-alexheretic | alexheretic/ab-av1 @ed5f5461 | LICENSE begins with the line 'Copyright (c) 2022 Alex Butler' and then the heading 'MIT License' | AV1 encoding tool: searches for the crf that meets a stated minimum VMAF (or XPSNR) using short sample encodes, then encodes; has full vmaf and xpsnr score commands; an optional --verify check is described because the encoder can otherwise exit successfully having written a damaged or cut-short result. Needs ffmpeg newer than git-2022-02-24 with libsvtav1, libvmaf and libopus enabled, on the PATH | cargo install ab-av1; pre-built Windows and Linux binaries in the latest release; AUR package on Arch Linux | README only; a JSON output page is a relative file in the repository (stdout-format-json.md) | LICENSE read at pinned commit; rest README claim |\n| av1an-rust-av | rust-av/Av1an @641ce62d | LICENSE.md is headed 'GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007'; documentation level only for this repository | Video encoding framework that runs multiple encoder processes in parallel; Target Quality mode uses metrics to steer the encoder to a desired quality; cancel and resume without loss of progress. Needs FFmpeg, VapourSynth and at least one executable encoder (aomenc, SvtAv1EncApp, rav1e, vpxenc, x264 or x265 are listed; the library alone is not enough); VMAF is optional and needed for VMAF scores and Target Quality mode; optional VapourSynth plugins for chunking are listed (not named here) | cargo install av1an; pacman -S av1an on Arch Linux and Manjaro; Docker images and Windows binaries are mentioned | rust-av.github.io/Av1an | LICENSE.md read at pinned commit; rest README claim |\n| ffmpeg-normalize-slhck | slhck/ffmpeg-normalize @90dc8904 | LICENSE.md has the heading 'License' and the line 'ffmpeg-normalize, Copyright (c) Werner Robitza' followed by permission text; no licence name in the file, so none is named | Batch-normalizes audio using ffmpeg to a loudness level with the EBU R128 procedure; also RMS-based and peak normalization; processes video files while preserving the video streams; has a Python API. Needs a recent ffmpeg and Python 3.10 or higher | pip3 install ffmpeg-normalize (uvx given as an alternative) | slhck.info/ffmpeg-normalize | LICENSE.md read at pinned commit; rest README claim |\n| pyav-pyav-org | PyAV-Org/PyAV @b1328a39 | LICENSE.txt begins 'Copyright retained by original committers. All rights reserved.' followed by redistribution conditions; no licence name in the file, so none is named | Pythonic binding for the FFmpeg libraries: direct access to containers, streams, packets, codecs and frames. The README itself says that if the ffmpeg command does the job, PyAV is likely more of a hindrance than a help. Needs Python 3.12 or later; wheels bundle FFmpeg; building from source needs FFmpeg development files and pkg-config. The README names FFmpeg 9.x in one place and 8.x in another; not reconciled | pip install av (binary wheels on PyPI for Linux, macOS and Windows); conda install av -c conda-forge | pyav.basswood.io | LICENSE.txt read at pinned commit; rest README claim; FFmpeg version statements differ |\n| moviepy-zulko | Zulko/moviepy @211e4b15 | LICENCE.txt is headed 'The MIT License (MIT)' with the line 'Copyright (c) 2015 Zulko'; the README also says it is released under the MIT licence | Python library for video editing: cuts, concatenations, title insertions, compositing, processing and custom effects; reads and writes the most common audio and video formats including GIF; the README says it is slower than using ffmpeg directly; v2.0 introduced major breaking changes. Needs Python 3.9 or higher | pip install moviepy; a custom FFMPEG and previewing are covered on a linked page (not read) | zulko.github.io/moviepy | LICENCE.txt read at pinned commit; rest README claim |\n| vmaf-netflix | Netflix/vmaf @a6ed0f18 | LICENSE begins 'LICENSE - BSD+Patent' and 'SPDX short identifier: BSD-2-Clause-Patent' (recorded as the file names it) with 'Copyright (c) 2020 Netflix, Inc.'; the README says the licence was changed from Apache 2.0 to BSD+Patent | Perceptual video quality assessment algorithm from Netflix: a C library libvmaf with a Python wrapper; libvmaf also implements PSNR, PSNR-HVS, SSIM, MS-SSIM and CIEDE2000; can be used as an FFmpeg filter. A new model set (v1) is announced in the README and v0 remains documented; model files were not fetched and no licence is asserted for them | no single install command in the README; it lists the vmaf command-line tool, the libvmaf C library, the Python library, the FFmpeg filter (configured with --enable-libvmaf), a Dockerfile and Windows build instructions | resource/doc/index.md in the repository (relative link) | LICENSE read at pinned commit; rest README claim; install route not stated as one command |\n\n## Licence notes\n\nab-av1 and MoviePy carry licence files headed MIT. Av1an carries a file headed GNU General Public License Version 3 (29 June 2007), so this note stays at documentation level for it. VMAF names BSD+Patent with an SPDX identifier in its licence file. ffmpeg-normalize and PyAV carry permissive text under a copyright line and name no licence in the file, so this note names none for them. The README statements about licences are recorded as written and nothing here determines rights. VMAF model files, test clips, datasets, codecs and encoders that the READMEs name are pointers only and no licence is asserted for them.\n\n## Related Veyrul records\n- src_01M569EDWXTT9XTPJWKEX5BWZG: earlier MoviePy source record, further reading only; not merged with this table and not re-read in this packet\n- src_01M569EDBTHBJFP26K3KXNDM9Q: earlier Netflix VMAF source record, further reading only; not merged with this table and not re-read in this packet\n\n## Limits\n- Documentary only: all 12 archived files were read as text and cited. Nothing was installed, built, run or measured, no video was encoded or normalized and no quality score was computed, so every statement is as documented and unchecked.\n- Not read: documentation sites beyond the README, VMAF model files, test clips, datasets, papers, codecs and encoders that the READMEs name (pointers only, their licences not asserted), and FFmpeg build licensing. No speed, quality or bitrate figure is given and no ranking is made.\n- Licence labels are the licence file headings or first lines as read; ffmpeg-normalize and PyAV name no licence in the file. The PyAV README names FFmpeg 9.x and 8.x in different places and the two are not reconciled. Nothing here determines rights.\n- The Claude terminal curator and the local Qwen researcher share the founder operator. This is source-based desk curation, not independent formal verification.","citations":[{"url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/LICENSE","note":"ab-av1 LICENSE (commit ed5f5461), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/README.md","note":"ab-av1 README.md (commit ed5f5461), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/LICENSE.md","note":"Av1an LICENSE.md (commit 641ce62d), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","note":"Av1an README.md (commit 641ce62d), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/LICENSE.md","note":"ffmpeg-normalize LICENSE.md (commit 90dc8904), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","note":"ffmpeg-normalize README.md (commit 90dc8904), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/LICENSE.txt","note":"PyAV LICENSE.txt (commit b1328a39), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","note":"PyAV README.md (commit b1328a39), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/LICENCE.txt","note":"moviepy LICENCE.txt (commit 211e4b15), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","note":"moviepy README.md (commit 211e4b15), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/LICENSE","note":"vmaf LICENSE (commit a6ed0f18), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/README.md","note":"vmaf README.md (commit a6ed0f18), read as text from a private archive copy"}]},"tags":["video-encoding","av1","vmaf","loudness-normalization","ffmpeg","pointer-table","documented-not-tested"],"type":"article","title":"Encoding, loudness and quality tools for generated video as pointers: ab-av1, Av1an, ffmpeg-normalize, PyAV, MoviePy, VMAF; licence, needs, evidence status","rights":[{"notes":"Original attributed summary of public README and licence files; only short phrases and file headings are quoted, no code is copied and nothing is redistributed; the GPL-3.0 repository (Av1an) is described at documentation level only, and no rights determination is made.","hosting":"permitted","component":"documentation","modification":"permitted","model_training":"unknown","redistribution":"permitted"}],"summary":"A pointer table over six video encoding, loudness and quality repositories at pinned commits, read as text from README and licence files: ab-av1, Av1an, ffmpeg-normalize, PyAV, MoviePy and VMAF. Each row gives the licence as the licence file reads, what the README says the tool does and needs, the install route as stated, the primary documentation link and an evidence status. No ranking, no speed or quality figure and nothing run.","evidence":{"review":"unreviewed","execution":"not_run","inspection":"source_inspected"},"categories":["T10"],"extensions":{"curation/v1":{"curator":"veyrul-2c","revision":1,"topic_ids":[],"confidence":"Statements are pinned to byte ranges of the archived files; nothing was installed or run, so every statement is documented, not checked.","limitations":["Documentary only: all 12 archived files were read as text and cited. Nothing was installed, built, run or measured, no video was encoded or normalized and no quality score was computed, so every statement is as documented and unchecked.","Not read: documentation sites beyond the README, VMAF model files, test clips, datasets, papers, codecs and encoders that the READMEs name (pointers only, their licences not asserted), and FFmpeg build licensing. No speed, quality or bitrate figure is given and no ranking is made.","Licence labels are the licence file headings or first lines as read; ffmpeg-normalize and PyAV name no licence in the file. The PyAV README names FFmpeg 9.x and 8.x in different places and the two are not reconciled. Nothing here determines rights.","The Claude terminal curator and the local Qwen researcher share the founder operator. This is source-based desk curation, not independent formal verification."],"observed_at":"2026-11-04T15:13:49.000Z","source_pins":[{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ab-av1__LICENSE; UTF-8 bytes [0,43); excerpt SHA256 085ca8e95381f6f2a7b3d7f36369e54b5b5de78d01b66e123f5aa777f7872db9; LICENSE begins with a copyright line (2022, Alex Butler) and then the heading MIT License","source_id":"WIN-S-90fae2f293b521048a588524e83e493a","version_id":"WIN-V-7ef3476bcc56e3b990e2379b81c07f64","observed_at":"2026-11-04T14:56:36.642Z","canonical_url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/LICENSE","version_sha256":"a7ee62f39319b81549c9464f74c427c325ba0dcf9426a11261751cd91dd0adcc"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__LICENSE.md; UTF-8 bytes [20,93); excerpt SHA256 810629690cf9739af81980e4880f00ad5c145cd41d30a20671c427d1ec227663; LICENSE.md heading: GNU General Public License, Version 3, 29 June 2007","source_id":"WIN-S-2930f6243ae806b8cb5396dbe5dbe12f","version_id":"WIN-V-da7c406deb62d441ebd49fdaa69dbf07","observed_at":"2026-11-04T14:57:32.926Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/LICENSE.md","version_sha256":"dd8a21dc49e7251493d3751f64d9c695bed07ab3e44159db6ed20dfff6b0947b"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__LICENSE.md; 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UTF-8 bytes [379,484); excerpt SHA256 2fc46f637519182fcd9722d58b49524c9e9b3fefac364b3e9bdf2d2e9bf05a2f; README: direct and precise access to media via containers, streams, packets, codecs and frames","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [777,909); excerpt SHA256 49d6d7c6c469075d2a57831473c02dc52edb28fd41fddfc961dbe7e7e911c278; README: if the ffmpeg command does the job without bending over backwards, PyAV is likely to be more of a hindrance than a help","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [1002,1131); excerpt SHA256 a6f038ba8c58bb71b52cc88e3aa15070860a045831a7a4805a1fefca9ddb5f79; README Installation: Python 3.12 or later; binary wheels on PyPI for Linux, macOS and Windows with FFmpeg bundled","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [1182,1196); excerpt SHA256 19f93c071643bd1bf7edacc20745eda1de89ce8379a8736975955af47ef02f4e; README Installation: pip install av; conda install av -c conda-forge is also given","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; 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UTF-8 bytes [1216,1351); excerpt SHA256 af4aedbfab1b040d5d15804842a8fd7c4fd521f6ec4083d739ef4d36d9eba2cc; README: reads and writes the most common audio and video formats including GIF, on Windows, Mac and Linux with Python 3.9+","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [2837,2922); excerpt SHA256 3280bc15c5c5c3fc45527462f1a3d857277fc11f2c96984d30ef154e895b512f; README How MoviePy works: flexible and approachable, albeit slower than using ffmpeg directly due to heavier data import and export","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [627,697); excerpt SHA256 272b9f84a9318178809a366617cdcdab0dfa7c84bb548456fbba6640c3fe16bf; README note: MoviePy upgraded to v2.0 with major breaking changes; v1 is no longer maintained","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [2951,3047); excerpt SHA256 3dbb48980b972c69fb4ad091ec82d4465ef56c7fc40270e2d7134ad782b9ccdf; README Installation: pip install moviepy; extra options such as a custom FFMPEG are on a linked page","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; 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UTF-8 bytes [5660,5762); excerpt SHA256 32a80eca7ed734ed90d8e8f19674918f903c5aa46c560d3d81c332442c8b88f0; README Usage: VMAF is included as a filter in FFmpeg, configured with --enable-libvmaf","source_id":"WIN-S-22e07ab10fb8b095fcc46c73c18232c9","version_id":"WIN-V-7071551ce606db7157f70503759b1859","observed_at":"2026-11-04T15:01:24.656Z","canonical_url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/README.md","version_sha256":"af4ef1814f166b3fa662740e38589cbcdbd4515f81b8b70f5d9c50a130b1c3a5"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/vmaf__README.md; UTF-8 bytes [4918,5866); excerpt SHA256 57a5f4be7a2d28d7b0ba378fe507d5f1290c5b4542f3cca466e040ce2d9ccbe3; README Usage: ways to use it are the vmaf command-line tool, the libvmaf C library, the Python library, the FFmpeg filter and a Dockerfile","source_id":"WIN-S-22e07ab10fb8b095fcc46c73c18232c9","version_id":"WIN-V-7071551ce606db7157f70503759b1859","observed_at":"2026-11-04T15:01:24.656Z","canonical_url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/README.md","version_sha256":"af4ef1814f166b3fa662740e38589cbcdbd4515f81b8b70f5d9c50a130b1c3a5"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/vmaf__README.md; 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short phrases only (documentation level, licence rulings of the cycle).","qualification":"shared_operator_desk_qa","supersedes_sha256":null}},"visibility":"public"},"observed_on":null,"original_id":"p-dd8ffb513c08cdb5f4154d9c64a3d9e5caeb617c/record","source_file":"records/p-dd8ffb513c08cdb5f4154d9c64a3d9e5caeb617c/record.json","research_side":{},"source_schema":"create-record-input/v1","original_sha256":"1911945eaf2911c8c2ad708d3d68731a6e7fe88624b382c04f5873ec5381e8ac","unmapped_fields":[]},{"batch_id":"pipe-157612a05947123376bc005a5c76e39ae47edc1b","original":{"body":{"text":"## Answer and resources\n\nThis is a pointer table, not a ranking or a guide. For six repositories that touch delivering generated video, each row gives a stable id, the pinned commit, the licence as the licence file reads, what the README says the tool does and needs, the install route as stated, the primary documentation link and an evidence status. Two are quality-targeted encoders (ab-av1, Av1an), one normalizes loudness (ffmpeg-normalize), two are Python routes to FFmpeg-based video work (PyAV for low-level access, MoviePy as a Python library for scripted video editing) and one is a perceptual quality metric (VMAF). Everything was read as text from a private archive copy at the pinned commits; nothing was installed, encoded, normalized or measured.\n\n## Pointer table\n\n| Stable id | Repository and commit | Licence as the licence file reads | What the README says it does, and needs | Install route as stated | Primary doc link | Evidence status |\n| --- | --- | --- | --- | --- | --- | --- |\n| ab-av1-alexheretic | alexheretic/ab-av1 @ed5f5461 | LICENSE begins with the line 'Copyright (c) 2022 Alex Butler' and then the heading 'MIT License' | AV1 encoding tool: searches for the crf that meets a stated minimum VMAF (or XPSNR) using short sample encodes, then encodes; has full vmaf and xpsnr score commands; an optional --verify check is described because the encoder can otherwise exit successfully having written a damaged or cut-short result. Needs ffmpeg newer than git-2022-02-24 with libsvtav1, libvmaf and libopus enabled, on the PATH | cargo install ab-av1; pre-built Windows and Linux binaries in the latest release; AUR package on Arch Linux | README only; a JSON output page is a relative file in the repository (stdout-format-json.md) | LICENSE read at pinned commit; rest README claim |\n| av1an-rust-av | rust-av/Av1an @641ce62d | LICENSE.md is headed 'GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007'; documentation level only for this repository | Video encoding framework that runs multiple encoder processes in parallel; Target Quality mode uses metrics to steer the encoder to a desired quality; cancel and resume without loss of progress. Needs FFmpeg, VapourSynth and at least one executable encoder (aomenc, SvtAv1EncApp, rav1e, vpxenc, x264 or x265 are listed; the library alone is not enough); VMAF is optional and needed for VMAF scores and Target Quality mode; optional VapourSynth plugins for chunking are listed (not named here) | cargo install av1an; pacman -S av1an on Arch Linux and Manjaro; Docker images and Windows binaries are mentioned | rust-av.github.io/Av1an | LICENSE.md read at pinned commit; rest README claim |\n| ffmpeg-normalize-slhck | slhck/ffmpeg-normalize @90dc8904 | LICENSE.md has the heading 'License' and the line 'ffmpeg-normalize, Copyright (c) Werner Robitza' followed by permission text; no licence name in the file, so none is named | Batch-normalizes audio using ffmpeg to a loudness level with the EBU R128 procedure; also RMS-based and peak normalization; processes video files while preserving the video streams; has a Python API. Needs a recent ffmpeg and Python 3.10 or higher | pip3 install ffmpeg-normalize (uvx given as an alternative) | slhck.info/ffmpeg-normalize | LICENSE.md read at pinned commit; rest README claim |\n| pyav-pyav-org | PyAV-Org/PyAV @b1328a39 | LICENSE.txt begins 'Copyright retained by original committers. All rights reserved.' followed by redistribution conditions; no licence name in the file, so none is named | Pythonic binding for the FFmpeg libraries: direct access to containers, streams, packets, codecs and frames. The README itself says that if the ffmpeg command does the job, PyAV is likely more of a hindrance than a help. Needs Python 3.12 or later; wheels bundle FFmpeg; building from source needs FFmpeg development files and pkg-config. The README names FFmpeg 9.x in one place and 8.x in another; not reconciled | pip install av (binary wheels on PyPI for Linux, macOS and Windows); conda install av -c conda-forge | pyav.basswood.io | LICENSE.txt read at pinned commit; rest README claim; FFmpeg version statements differ |\n| moviepy-zulko | Zulko/moviepy @211e4b15 | Licence file LICENCE.txt is headed 'The MIT License (MIT)' with the line 'Copyright (c) 2015 Zulko'; the README also says it is released under the MIT licence | Python library for scripted video editing: the editing is written as Python code (the README example is a short script that cuts a subclip, adds a text clip and writes a new file); cuts, concatenations, title insertions, compositing, processing and custom effects; reads and writes the most common audio and video formats including GIF; the README says it is slower than using ffmpeg directly; v2.0 introduced major breaking changes. Needs Python 3.9 or higher | pip install moviepy; a custom FFMPEG and previewing are covered on a linked page (not read) | zulko.github.io/moviepy | LICENCE.txt read at pinned commit; rest README claim |\n| vmaf-netflix | Netflix/vmaf @a6ed0f18 | LICENSE begins 'LICENSE - BSD+Patent' and 'SPDX short identifier: BSD-2-Clause-Patent' (recorded as the file names it) with 'Copyright (c) 2020 Netflix, Inc.'; the README says the licence was changed from Apache 2.0 to BSD+Patent | Perceptual video quality assessment algorithm from Netflix: a C library libvmaf with a Python wrapper; libvmaf also implements PSNR, PSNR-HVS, SSIM, MS-SSIM and CIEDE2000; can be used as an FFmpeg filter. A new model set (v1) is announced in the README and v0 remains documented; model files were not fetched and no licence is asserted for them | no single install command in the README; it lists the vmaf command-line tool, the libvmaf C library, the Python library, the FFmpeg filter (configured with --enable-libvmaf), a Dockerfile and Windows build instructions | resource/doc/index.md in the repository (relative link) | LICENSE read at pinned commit; rest README claim; install route not stated as one command |\n\n## Licence notes\n\nab-av1 and MoviePy carry licence files headed MIT. Av1an carries a file headed GNU General Public License Version 3 (29 June 2007), so this note stays at documentation level for it. VMAF names BSD+Patent with an SPDX identifier in its licence file. ffmpeg-normalize and PyAV carry permissive text under a copyright line and name no licence in the file, so this note names none for them. The README statements about licences are recorded as written and nothing here determines rights. VMAF model files, test clips, datasets, codecs and encoders that the READMEs name are pointers only and no licence is asserted for them.\n\n## Related Veyrul records\n- src_01M569EDWXTT9XTPJWKEX5BWZG: earlier MoviePy source record, further reading only; not merged with this table and not re-read in this packet\n- src_01M569EDBTHBJFP26K3KXNDM9Q: earlier Netflix VMAF source record, further reading only; not merged with this table and not re-read in this packet\n\n## Limits\n- Documentary only: all 12 archived files were read as text and cited. Nothing was installed, built, run or measured, no video was encoded or normalized and no quality score was computed, so every statement is as documented and unchecked.\n- Not read: documentation sites beyond the README, VMAF model files, test clips, datasets, papers, codecs and encoders that the READMEs name (pointers only, their licences not asserted), and FFmpeg build licensing. No speed, quality or bitrate figure is given and no ranking is made.\n- Licence labels are the licence file headings or first lines as read; ffmpeg-normalize and PyAV name no licence in the file. The PyAV README names FFmpeg 9.x and 8.x in different places and the two are not reconciled. Nothing here determines rights.\n- The Claude terminal curator and the local Qwen researcher share the founder operator. This is source-based desk curation, not independent formal verification.","citations":[{"url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/LICENSE","note":"ab-av1 LICENSE (commit ed5f5461), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/README.md","note":"ab-av1 README.md (commit ed5f5461), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/LICENSE.md","note":"Av1an LICENSE.md (commit 641ce62d), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","note":"Av1an README.md (commit 641ce62d), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/LICENSE.md","note":"ffmpeg-normalize LICENSE.md (commit 90dc8904), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","note":"ffmpeg-normalize README.md (commit 90dc8904), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/LICENSE.txt","note":"PyAV LICENSE.txt (commit b1328a39), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","note":"PyAV README.md (commit b1328a39), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/LICENCE.txt","note":"moviepy LICENCE.txt (commit 211e4b15), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","note":"moviepy README.md (commit 211e4b15), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/LICENSE","note":"vmaf LICENSE (commit a6ed0f18), read as text from a private archive copy"},{"url":"https://raw.githubusercontent.com/Netflix/vmaf/a6ed0f18285cab504b779bbccb0bbaddc3bf44c2/README.md","note":"vmaf README.md (commit a6ed0f18), read as text from a private archive copy"}]},"tags":["video-encoding","av1","vmaf","loudness-normalization","ffmpeg","pointer-table","documented-not-tested"],"type":"article","title":"Encoding, loudness and quality tools for generated video as pointers: ab-av1, Av1an, ffmpeg-normalize, PyAV, MoviePy, VMAF; licence, needs, evidence status","rights":[{"notes":"Original attributed summary of public README and licence files; only short phrases and file headings are quoted, no code is copied and nothing is redistributed; the GPL-3.0 repository (Av1an) is described at documentation level only, and no rights determination is made.","hosting":"permitted","component":"documentation","modification":"permitted","model_training":"unknown","redistribution":"permitted"}],"summary":"A pointer table over six video encoding, loudness and quality repositories at pinned commits, read as text from README and licence files: ab-av1, Av1an, ffmpeg-normalize, PyAV, MoviePy (a Python library for scripted video editing) and VMAF. Each row gives the licence as the licence file reads, what the README says the tool does and needs, the install route as stated, the primary documentation link and an evidence status. No ranking, no speed or quality figure and nothing run.","evidence":{"review":"unreviewed","execution":"not_run","inspection":"source_inspected"},"categories":["T10"],"extensions":{"curation/v1":{"curator":"veyrul-2c","revision":2,"topic_ids":[],"confidence":"Statements are pinned to byte ranges of the archived files; nothing was installed or run, so every statement is documented, not checked.","limitations":["Documentary only: all 12 archived files were read as text and cited. Nothing was installed, built, run or measured, no video was encoded or normalized and no quality score was computed, so every statement is as documented and unchecked.","Not read: documentation sites beyond the README, VMAF model files, test clips, datasets, papers, codecs and encoders that the READMEs name (pointers only, their licences not asserted), and FFmpeg build licensing. No speed, quality or bitrate figure is given and no ranking is made.","Licence labels are the licence file headings or first lines as read; ffmpeg-normalize and PyAV name no licence in the file. The PyAV README names FFmpeg 9.x and 8.x in different places and the two are not reconciled. Nothing here determines rights.","The Claude terminal curator and the local Qwen researcher share the founder operator. 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UTF-8 bytes [3314,3334); excerpt SHA256 b15ad57398ec7d4a04c12912d7642fe20d1a7a3fcbdfc6f6c98174bd65468956; README Install: cargo install ab-av1","source_id":"WIN-S-4f9c9aad3af50a34b56c5ee4820446ef","version_id":"WIN-V-43853cfe84ad0bb8f256f04d68a8fc06","observed_at":"2026-11-04T14:56:51.903Z","canonical_url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/README.md","version_sha256":"bcfe1bb8f60201cdc3e3f6ae7cab5ba1dc07223e9655f1b11636b11701da57e7"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ab-av1__README.md; UTF-8 bytes [3162,3218); excerpt SHA256 606256001a8a65ea175681e0f5d6b41136b1287254f1db5078ca4498d6e5a895; README Install: a pre-built ab-av1.exe is included in the latest release (Windows); a Linux static binary and an AUR package are also listed","source_id":"WIN-S-4f9c9aad3af50a34b56c5ee4820446ef","version_id":"WIN-V-43853cfe84ad0bb8f256f04d68a8fc06","observed_at":"2026-11-04T14:56:51.903Z","canonical_url":"https://raw.githubusercontent.com/alexheretic/ab-av1/ed5f5461f0aa91ee838ed7ffcafe7e9f51a4d6c9/README.md","version_sha256":"bcfe1bb8f60201cdc3e3f6ae7cab5ba1dc07223e9655f1b11636b11701da57e7"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ab-av1__README.md; 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UTF-8 bytes [379,484); excerpt SHA256 2fc46f637519182fcd9722d58b49524c9e9b3fefac364b3e9bdf2d2e9bf05a2f; README: direct and precise access to media via containers, streams, packets, codecs and frames","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [777,909); excerpt SHA256 49d6d7c6c469075d2a57831473c02dc52edb28fd41fddfc961dbe7e7e911c278; README: if the ffmpeg command does the job without bending over backwards, PyAV is likely to be more of a hindrance than a help","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [1002,1131); excerpt SHA256 a6f038ba8c58bb71b52cc88e3aa15070860a045831a7a4805a1fefca9ddb5f79; README Installation: Python 3.12 or later; binary wheels on PyPI for Linux, macOS and Windows with FFmpeg bundled","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [1182,1196); excerpt SHA256 19f93c071643bd1bf7edacc20745eda1de89ce8379a8736975955af47ef02f4e; README Installation: pip install av; conda install av -c conda-forge is also given","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; 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UTF-8 bytes [1216,1351); excerpt SHA256 af4aedbfab1b040d5d15804842a8fd7c4fd521f6ec4083d739ef4d36d9eba2cc; README: reads and writes the most common audio and video formats including GIF, on Windows, Mac and Linux with Python 3.9+","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [2837,2922); excerpt SHA256 3280bc15c5c5c3fc45527462f1a3d857277fc11f2c96984d30ef154e895b512f; README How MoviePy works: flexible and approachable, albeit slower than using ffmpeg directly due to heavier data import and export","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [627,697); excerpt SHA256 272b9f84a9318178809a366617cdcdab0dfa7c84bb548456fbba6640c3fe16bf; README note: MoviePy upgraded to v2.0 with major breaking changes; v1 is no longer maintained","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [2951,3047); excerpt SHA256 3dbb48980b972c69fb4ad091ec82d4465ef56c7fc40270e2d7134ad782b9ccdf; README Installation: pip install moviepy; extra options such as a custom FFMPEG are on a linked page","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [3629,3659); excerpt SHA256 6018d1bc27084a072590a2ee0556d21a7d25d4430bc605a41ba772ccec67f477; README Contribute: released under the MIT licence","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [2160,2201); excerpt SHA256 b2582d2c447c410669e8f46cbf35063525c3d52a757892a5e06c8e3c66f7f567; README Example: a short Python script loads a clip, keeps a subclip, adds a text clip, composites them and writes result.mp4","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; 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nothing was installed or run, so every statement is documented, not checked.","limitations":["Documentary only: all 12 archived files were read as text and cited. 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UTF-8 bytes [1359,1521); excerpt SHA256 0f9fafc862a2215597ff04d464a0421d441f21fde246b5386d2773e7d09c2149; README Features: Target Quality mode uses metrics to control the encoder rate control to achieve the desired video quality","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [1583,1634); excerpt SHA256 753dda8984ba77a857764a05cb3639ebbe2c45d65a62c241bd22fca88429f61c; README Features: cancel and resume encoding without loss of progress","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [2375,2777); excerpt SHA256 06a7f2ad28adebce2191266d1c091c36dcf9cb4d32f5589cbc3863c36c5c2ffb; README Supported encoders: at least one encoder is required; six executable encoders are listed (aomenc, SvtAv1EncApp, rav1e, vpxenc, x264, x265)","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [3046,3116); excerpt SHA256 75f7de9f97032f19ff7f50e4740fada21a9da590e59796f5465ad428c2096fa4; README: the executable encoder is needed, installing only the encoder library is not enough","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [3742,3896); excerpt SHA256 d8f5c9dbc15f167ba8dc1c98e42010382578946a44a47d16166441ded554c6f2; README Manual installation prerequisites: FFmpeg, VapourSynth and at least one encoder","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [3919,4056); excerpt SHA256 a349a357d6d382fa17c039f8aa558eedac2c73660879bb0dd3e20fe25ab99b05; README Manual installation: an Optional list follows, starting with VapourSynth plugins for chunking (the plugin names are not repeated here)","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [4550,4646); excerpt SHA256 bc6bace4ae5ea0ed463a799ee73f7f6874cd0869338b13896a89f43d469061a3; README optional list: VMAF is optional and is needed to calculate VMAF scores and to use Target Quality mode","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [3687,3715); excerpt SHA256 fdb74ad349678767e23d1a058020d18ff3b23c4cea66b60a3c332d44df9de342; README Package managers: cargo install av1an, and pacman -S av1an on Arch Linux and Manjaro","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/Av1an__README.md; UTF-8 bytes [1907,1995); excerpt SHA256 daff211e035005dec7344c9bbbf660b2a28b2950373b173b8302b2b451ff53d1; README Usage: link to the documentation site","source_id":"WIN-S-a2e5b18cc90545e362f72a5f8b9a85ce","version_id":"WIN-V-2965f7995c530def4051b74f33f521be","observed_at":"2026-11-04T14:57:47.440Z","canonical_url":"https://raw.githubusercontent.com/rust-av/Av1an/641ce62d70e34f438f3ee91ec50de77784a10705/README.md","version_sha256":"cbef1f395eefd58e27585729e59063b88aad4aa19ae8487017a51d3e9dcf3111"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__README.md; UTF-8 bytes [783,834); excerpt SHA256 4857103dc372830b93c7d9c791f3a577fbecfc1712b0b18837a1d5890bc3fb7b; README: a utility for batch-normalizing audio using ffmpeg","source_id":"WIN-S-6612a08804aa80d28416b1a9777456aa","version_id":"WIN-V-d98f29d6383677b2888aec1eefd3d4ae","observed_at":"2026-11-04T14:58:32.032Z","canonical_url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","version_sha256":"b73b63340c53ee7864a4389dd7d0aba0c239c8ccf451eee73e4147f440f291bb"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__README.md; UTF-8 bytes [836,952); excerpt SHA256 9f8754a7c2a7f98e04c245c84891f5b8ac1ffcb59d4dc1a107eeed0e19c1f8e1; README: normalizes media files to a certain loudness level using the EBU R128 loudness normalization procedure","source_id":"WIN-S-6612a08804aa80d28416b1a9777456aa","version_id":"WIN-V-d98f29d6383677b2888aec1eefd3d4ae","observed_at":"2026-11-04T14:58:32.032Z","canonical_url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","version_sha256":"b73b63340c53ee7864a4389dd7d0aba0c239c8ccf451eee73e4147f440f291bb"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__README.md; UTF-8 bytes [973,1344); excerpt SHA256 13a6348be1c9653c2a0a03ad548f09679ea38890b1e4e5725002a2d6497cf3f5; README Features: RMS-based normalization and peak normalization are also listed","source_id":"WIN-S-6612a08804aa80d28416b1a9777456aa","version_id":"WIN-V-d98f29d6383677b2888aec1eefd3d4ae","observed_at":"2026-11-04T14:58:32.032Z","canonical_url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","version_sha256":"b73b63340c53ee7864a4389dd7d0aba0c239c8ccf451eee73e4147f440f291bb"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__README.md; UTF-8 bytes [1787,1860); excerpt SHA256 9f0099c5b315926aa51ff1d421e2091bb06d7613ca30f1635c470adc7a153466; README Features: video file support, processing video files while preserving the video streams","source_id":"WIN-S-6612a08804aa80d28416b1a9777456aa","version_id":"WIN-V-d98f29d6383677b2888aec1eefd3d4ae","observed_at":"2026-11-04T14:58:32.032Z","canonical_url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","version_sha256":"b73b63340c53ee7864a4389dd7d0aba0c239c8ccf451eee73e4147f440f291bb"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__README.md; UTF-8 bytes [2136,2232); excerpt SHA256 04d58e3414d302899370104efcaac0f1d5e42e2d6669c0ba815c2f1186975b9c; README Quick Start: needs a recent ffmpeg and Python 3.10 or higher","source_id":"WIN-S-6612a08804aa80d28416b1a9777456aa","version_id":"WIN-V-d98f29d6383677b2888aec1eefd3d4ae","observed_at":"2026-11-04T14:58:32.032Z","canonical_url":"https://raw.githubusercontent.com/slhck/ffmpeg-normalize/90dc8904353bfe596222da94c039dffd83401bf0/README.md","version_sha256":"b73b63340c53ee7864a4389dd7d0aba0c239c8ccf451eee73e4147f440f291bb"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/ffmpeg-normalize__README.md; 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UTF-8 bytes [379,484); excerpt SHA256 2fc46f637519182fcd9722d58b49524c9e9b3fefac364b3e9bdf2d2e9bf05a2f; README: direct and precise access to media via containers, streams, packets, codecs and frames","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; UTF-8 bytes [777,909); excerpt SHA256 49d6d7c6c469075d2a57831473c02dc52edb28fd41fddfc961dbe7e7e911c278; README: if the ffmpeg command does the job without bending over backwards, PyAV is likely to be more of a hindrance than a help","source_id":"WIN-S-07ae9598025a761927c8b437273c7cad","version_id":"WIN-V-4696081a46c50e92b2f127e4c9534a21","observed_at":"2026-11-04T14:59:11.757Z","canonical_url":"https://raw.githubusercontent.com/PyAV-Org/PyAV/b1328a3940b0eea0695863e5765b44e4a28bd17d/README.md","version_sha256":"42d054b090bce0c7b4129c143157aef841cdc4ae04417539d71910821608b3f6"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/PyAV__README.md; 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UTF-8 bytes [627,697); excerpt SHA256 272b9f84a9318178809a366617cdcdab0dfa7c84bb548456fbba6640c3fe16bf; README note: MoviePy upgraded to v2.0 with major breaking changes; v1 is no longer maintained","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; UTF-8 bytes [2951,3047); excerpt SHA256 3dbb48980b972c69fb4ad091ec82d4465ef56c7fc40270e2d7134ad782b9ccdf; README Installation: pip install moviepy; extra options such as a custom FFMPEG are on a linked page","source_id":"WIN-S-67b428e53c65d5f79f80e6d526e99eba","version_id":"WIN-V-b63a36fc583fdbd324eddd7901401f93","observed_at":"2026-11-04T15:00:14.183Z","canonical_url":"https://raw.githubusercontent.com/Zulko/moviepy/211e4b15f6ce4f34a6a9efbfff40590e43a68f77/README.md","version_sha256":"f3d2179c5985db7264a5372372aee0e99ef40109e42fe749e58de04ee5cbb262"},{"locator":"depth-packets/DEPTH-BULK-1104-057-VENCODE/src/moviepy__README.md; 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