CLI: Numeric way to compare two video files
I'm looking for a method that reliably gives me a "mathematical distance" of two videos from one another. Similar to how the Levenshtein distance can be used to get the distance from a string to another.
What I have
For example, I have a lot of videos that may only vary in codec (duplicates). The file formats range from webm, mp4, flv, mkv to avi. Comparing those videos with sha256sum does of course not work, similar to certain frames of the video which vary by slight changes in artifacts. One idea so far is to use ffmpeg to get pictures for every frame each x seconds, use compare from ImageMagic to get a numerical distance and use awk to calculate the average of the total value over the amount of images. This has a few disadvantages that I would like to get rid of:
it only works for images
I have to manually tweak the threshold of the
comparemetric until I'm technically below that of artifacts to be confident enough to allow automatic deletionsI have to manually review every video with it's potential duplicates to know what the differences are (from start to finish)
shell zsh
asked 7 mins ago
WhatWhat
938
add a comment |
I'm looking for a method that reliably gives me a "mathematical distance" of two videos from one another. Similar to how the Levenshtein distance can be used to get the distance from a string to another.
What I have
For example, I have a lot of videos that may only vary in codec (duplicates). The file formats range from webm, mp4, flv, mkv to avi. Comparing those videos with sha256sum does of course not work, similar to certain frames of the video which vary by slight changes in artifacts. One idea so far is to use ffmpeg to get pictures for every frame each x seconds, use compare from ImageMagic to get a numerical distance and use awk to calculate the average of the total value over the amount of images. This has a few disadvantages that I would like to get rid of:
it only works for images
I have to manually tweak the threshold of the
comparemetric until I'm technically below that of artifacts to be confident enough to allow automatic deletionsI have to manually review every video with it's potential duplicates to know what the differences are (from start to finish)
shell zsh
asked 7 mins ago
WhatWhat
938
add a comment |
I'm looking for a method that reliably gives me a "mathematical distance" of two videos from one another. Similar to how the Levenshtein distance can be used to get the distance from a string to another.
What I have
For example, I have a lot of videos that may only vary in codec (duplicates). The file formats range from webm, mp4, flv, mkv to avi. Comparing those videos with sha256sum does of course not work, similar to certain frames of the video which vary by slight changes in artifacts. One idea so far is to use ffmpeg to get pictures for every frame each x seconds, use compare from ImageMagic to get a numerical distance and use awk to calculate the average of the total value over the amount of images. This has a few disadvantages that I would like to get rid of:
it only works for images
I have to manually tweak the threshold of the
comparemetric until I'm technically below that of artifacts to be confident enough to allow automatic deletionsI have to manually review every video with it's potential duplicates to know what the differences are (from start to finish)
shell zsh
asked 7 mins ago
WhatWhat
938
I'm looking for a method that reliably gives me a "mathematical distance" of two videos from one another. Similar to how the Levenshtein distance can be used to get the distance from a string to another.
What I have
For example, I have a lot of videos that may only vary in codec (duplicates). The file formats range from webm, mp4, flv, mkv to avi. Comparing those videos with sha256sum does of course not work, similar to certain frames of the video which vary by slight changes in artifacts. One idea so far is to use ffmpeg to get pictures for every frame each x seconds, use compare from ImageMagic to get a numerical distance and use awk to calculate the average of the total value over the amount of images. This has a few disadvantages that I would like to get rid of:
it only works for images
I have to manually tweak the threshold of the
comparemetric until I'm technically below that of artifacts to be confident enough to allow automatic deletionsI have to manually review every video with it's potential duplicates to know what the differences are (from start to finish)
shell zsh
shell zsh
asked 7 mins ago
WhatWhat
938
asked 7 mins ago
WhatWhat
938
asked 7 mins ago
WhatWhat
938
asked 7 mins ago
WhatWhat
938
asked 7 mins ago
WhatWhat
938
938
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f503060%2fcli-numeric-way-to-compare-two-video-files%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f503060%2fcli-numeric-way-to-compare-two-video-files%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
