[HN Gopher] Show HN: Anno - Effortlessly annotate and comment on...
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Show HN: Anno - Effortlessly annotate and comment on videos/audio
Author : zackoverflow
Score : 99 points
Date : 2022-04-09 14:36 UTC (8 hours ago)
(HTM) web link (anno.so)
(TXT) w3m dump (anno.so)
| chaosprint wrote:
| Very interesting and very good design! Which framework does the
| website use?
| cryogenicplanet wrote:
| We use Next, but all the design is done in tailwind
| BlueTemplar wrote:
| Finally, Anno2022 !
| [deleted]
| zackoverflow wrote:
| https://anno.so/ZajoaZ8zJbdpATREt9qGW
| [deleted]
| rememberlenny wrote:
| This looks very nice and the YouTube/Loom integration is very
| nice.
|
| What target user group are you aiming to serve? Given the number
| of video tools in the past two years, I find that the vertical
| served largely determines what features are most valuable.
| cryogenicplanet wrote:
| Right now we have a couple of user groups in mind:
|
| - We've been using it internal for more detailed product
| feedback on looms where we can draw and give some feedback to
| our eng team - We've seen users using this for music feedback,
| sending drafts of songs to give feedback on before publishing
| them - Finally we've see a use case similar to frame.io,
| essentially a lighter weight, less enterprise version of frame
| zackoverflow wrote:
| Hey HN, I'm one of the founders of Modfy.video - we just shipped
| Anno.so which lets you add timestamped comments and annotations
| (drawings, scribbles, notes) to videos & other media files.
|
| We currently use it to add comments and markup to Loom videos
| about dev problems we share among our engineering team, it's been
| a great help.
|
| Anno.so supports uploaded videos, audio, YouTube videos, Loom
| videos, SoundCloud audio. It's free to use with no sign-up
| required.
|
| This is a project we spun out from a video editor we're currently
| working on https://modfy.video if interested.
| rbarragan wrote:
| Hey OP great work. I'm curious on the metrics and statistics,
| how much of people that consume media, use annotation? How's
| the impact?
| zackoverflow wrote:
| Thanks! It's less about those that consume and more about the
| creation process, giving feedback/thoughts while working on a
| video or a song.
|
| Also we use it internally to share looms with our eng team,
| where we leverage timestamped comments and annotations to
| enhance the sharing and discussion of ideas
| [deleted]
| shimonabi wrote:
| I've been looking for desktop software to make comments/bookmarks
| on audio files for a while. Does anyone know something like this?
|
| VLC is inadequate and I'm tired of manually adding timestamps to
| Notepad.
| blipmusic wrote:
| https://archive.mpi.nl/tla/elan
|
| This is almost certainly overkill for what you're looking for
| since it's really intended for researchers (think linguistic
| transcriptions etc), but any kind of annotation goes really,
| even if you're only tagging whenever the color green is visible
| in a video or the sound of a rooster in an audio recording.
|
| Format is XML:
| https://www.mpi.nl/tools/elan/EAF_Annotation_Format_3.0_and_...
| There's a python library for parsing outside of ELAN:
| https://github.com/dopefishh/pympi
| cryogenicplanet wrote:
| I'm curious why you wouldn't want to use it on the web?
|
| And would you be interested in us shipping this with something
| like Tauri (https://tauri.studio)?
| mzur wrote:
| Is it open source or are there plans to make it so? I'd be very
| interested how you do frame-accurate video annotations in the
| browser, as I found the currentTime attribute of HTML video
| elements to be too unreliable for this. (Context: I maintain a
| video annotation tool that is mostly used for marine imaging.)
| [deleted]
| zackoverflow wrote:
| For Anno we are using HTML video elements / YouTube embeds
| which have the same frame inaccuracy from currentTime. For our
| editor we have a WebGL-based solution that seems to get better
| frame granularity but still has some floating point rounding
| errors converting frames <-> seconds
|
| There's also requestVideoFrameCallback() and seekToNextFrame()
| in the Web APIs but they are still experimental/not supported
| by all browser. The WebCodecs API is also experimental/not
| supported to all browsers but would allow you to decode and
| grab the individual frames from a video and draw them to a
| canvas
| bjano wrote:
| In Chrome and Edge you can use WebCodecs to decode and display
| video frames one-by-one. (this is what I used for the video
| editor at https://vidmix.app )
|
| In other browsers you could build FFmpeg with webassembly and
| use that for frame-by-frame decoding but it's not going to be
| nearly as performant.
| mzur wrote:
| Decoding the video manually seems so much overkill when all
| that's needed would essentially be a currentFrame property.
| But it seems I have to explore this avenue as well. I only
| aim to support Chrome and Firefox but as much as I hate to
| admit it, Firefox is somewhat lacking on the video side
| anyway (as there is a bug that lets it display different
| video frames for the same currentTime than other browsers or
| FFmpeg [1]). Therefore I already discourage using Firefox for
| video annotation.
|
| [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1735300
| bjano wrote:
| Yes, the shortcomings of the html video tag are quite
| unfortunate. Just some very small improvements would make
| it a lot more useful. One other issue I found at the time I
| was looking at it (not sure if it's still the case) was
| that stepping one frame forward wasn't any faster than
| seeking from a random location. Seemed like the video was
| decoded from the last keyframe every time, making it
| inefficient to iterate through the frames.
| SpectralName wrote:
| > Context: I maintain a video annotation tool that is mostly
| used for marine imaging.
|
| Which one, out of curiosity? I'm just starting to look into
| this space and interested in knowing what's out there.
| nonoesp wrote:
| Recently came across Dropbox Replay which seems to target a
| similar user base.
|
| https://www.dropbox.com/replay
| [deleted]
| mattrighetti wrote:
| This reminds me a lot of SoundCloud's comments at a specific time
| in the audio, cool!
| avh3 wrote:
| Some time ago, I've build an MVP around the exact same idea
| (although without the audio tagging). It's also free to use, and
| can be found at https://proofing.io
|
| I can tell you up front, nobody seems interested in the
| 'annotations' part (drawing on the video). Only text notes seem
| to be used. Of course, this is only a limited view from our side.
| Maybe you guys see different results.
| [deleted]
| asiachick wrote:
| different cultures
|
| https://www.nicovideo.jp/
|
| Description: A popular site where users can add floating
| comments above the video at specific times.
|
| https://en.wikipedia.org/wiki/Niconico
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