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Cut audio clips and screen shots from the MP4 Timestapes
45 USD
Artwork for an educational project (in the prototype phase).
The best option (implementation) for creating a set of audio fragments and screen shots based on a video file needs to be explored and proposed.
At the entrance, the program receives:
- video file with one or more audio tracks
- text file with subtitles
- Arguments (audio track number, audio fadein/fadeout in milliseconds, see para. (see example)
audioTrack=1
FadeIn=200
FadeOut=200
At exit:
- audio fragments recorded in the folder (in mp3 format, bitrate the same as in the video)
- screen shots recorded in another folder (png format, resolution same as video)
I'm guessing we can do this with a ffpeg call.
Then the Java control program you've written should untweet the subtitles, make all the necessary calls ffmpeg with the right parameters.
Video for testing (Family Guy s1e1, 20min, 173Mb):
https://drive.google.com/file/d/1tRRU51a9kjHC47we_Vunl4_1FxF6Wotd/view?usp=sharing
Subtitles:
https://drive.google.com/file/d/1CflWB9nJ_SZKahWf7an5SN4Tv22Cty/view?usp=sharing
Assess how much it's going to cost to develop a prototype of this program.
(Prototype means you don't want to try to do the code, the optimization, the functional diversity, you don't have to write tests - only if it's for yourself.)
Clarification #1:
Screen shots are taken from the video for every audio fragment. The timestamp screen is calculated as the mid-point of audiofragment.screenshotTimetamp =(audioEndTimemp-audioStartTimetamp)/2 Final objective is to create an audio comic book for the web. The generation of this comic book is a separate story.
Clarification #2:
You can use ffmpeg-cli-wrapper.
Clarification #3:
There is also a need to add fadein/fadeout for audio fragments so that they do not sound ripped. Apparently, you can use afade filter. Example of use:
ffmpeg-i music.mp3-af"afade=t=in:st=0:d=0.5"out.mp3
ffmpeg-i music.mp3-af"afade=t=out:st=5:d=0.5"out.mp3 links to other examples
So maybe we'll have to use ffpeg several times for each fragment: cut the fadeIn fadeOut compression into mp3
The best option (implementation) for creating a set of audio fragments and screen shots based on a video file needs to be explored and proposed.
At the entrance, the program receives:
- video file with one or more audio tracks
- text file with subtitles
- Arguments (audio track number, audio fadein/fadeout in milliseconds, see para. (see example)
audioTrack=1
FadeIn=200
FadeOut=200
At exit:
- audio fragments recorded in the folder (in mp3 format, bitrate the same as in the video)
- screen shots recorded in another folder (png format, resolution same as video)
I'm guessing we can do this with a ffpeg call.
Then the Java control program you've written should untweet the subtitles, make all the necessary calls ffmpeg with the right parameters.
Video for testing (Family Guy s1e1, 20min, 173Mb):
https://drive.google.com/file/d/1tRRU51a9kjHC47we_Vunl4_1FxF6Wotd/view?usp=sharing
Subtitles:
https://drive.google.com/file/d/1CflWB9nJ_SZKahWf7an5SN4Tv22Cty/view?usp=sharing
Assess how much it's going to cost to develop a prototype of this program.
(Prototype means you don't want to try to do the code, the optimization, the functional diversity, you don't have to write tests - only if it's for yourself.)
Clarification #1:
Screen shots are taken from the video for every audio fragment. The timestamp screen is calculated as the mid-point of audiofragment.screenshotTimetamp =(audioEndTimemp-audioStartTimetamp)/2 Final objective is to create an audio comic book for the web. The generation of this comic book is a separate story.
Clarification #2:
You can use ffmpeg-cli-wrapper.
Clarification #3:
There is also a need to add fadein/fadeout for audio fragments so that they do not sound ripped. Apparently, you can use afade filter. Example of use:
ffmpeg-i music.mp3-af"afade=t=in:st=0:d=0.5"out.mp3
ffmpeg-i music.mp3-af"afade=t=out:st=5:d=0.5"out.mp3 links to other examples
So maybe we'll have to use ffpeg several times for each fragment: cut the fadeIn fadeOut compression into mp3
Work results
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Client's review of cooperation with Lyubomir B.
Cut audio clips and screen shots from the MP4 TimestapesQuality
Professionalism
Cost
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Lubium wrote a great source code. With the use of Streams, Consumer, Java 17. The library net.bramp.ffmpeg is well used. All operations with the help of parameters are reduced to one, batch processing works quickly. That’s exactly what I described in my task. And even better. thank you.
Freelancer's review of cooperation with Vitaly Sazanovich
Cut audio clips and screen shots from the MP4 TimestapesPayment
Task setting
Clarity of requirements
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The technical task is as clear and understandable as possible, interesting project and timely payment. pleasant to deal!
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