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old video formats for pentium 1

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Reply 80 of 86, by Karm

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The problem with audio and video is the compression. If you think: Oh, why is my large video file lagging, because I'm just adding a much smaller mp3 file to it... well it's because the file is so small, because it is highly compressed and has do be decrompressed "nearly" in realtime (with a little buffer).
I wouldn't be able to get a 190kbps 48kbps stereo soundfile running on my DX4 100 without video I guess (using Win3.1).
By let it play in mono and lower the kbps, it would get significant faster, because you don't have so much data to process.
An equivalent approach would be halven the resolution of the video.

Reply 81 of 86, by emosun

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Karm wrote:
The problem with audio and video is the compression. If you think: Oh, why is my large video file lagging, because I'm just addi […]
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The problem with audio and video is the compression. If you think: Oh, why is my large video file lagging, because I'm just adding a much smaller mp3 file to it... well it's because the file is so small, because it is highly compressed and has do be decrompressed "nearly" in realtime (with a little buffer).
I wouldn't be able to get a 190kbps 48kbps stereo soundfile running on my DX4 100 without video I guess (using Win3.1).
By let it play in mono and lower the kbps, it would get significant faster, because you don't have so much data to process.
An equivalent approach would be halven the resolution of the video.

cant say im going to halve the resolution of a 240p video 🤣

Reply 83 of 86, by lolo799

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I tested this movie I bought last month on my Toshiba Tecra 500CDT (Pentium 120MHz) and on my Pentium 200MHz tower.
All the screenshots are from my P200 machine, which is why there's a 3Dfx option in the config menu.

Sirius-MovieCD_Seven.JPG
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Sirius-MovieCD_Seven.JPG
File size
333.83 KiB
Views
606 views
File license
Fair use/fair dealing exception
mp-config.png
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mp-config.png
File size
27.96 KiB
Views
606 views
File license
Fair use/fair dealing exception
no enlargement.png
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no enlargement.png
File size
67.91 KiB
Views
606 views
File license
Fair use/fair dealing exception
single field.png
Filename
single field.png
File size
27.95 KiB
Views
606 views
File license
Fair use/fair dealing exception
4 pixel.png
Filename
4 pixel.png
File size
88.92 KiB
Views
606 views
File comment
4x pixel enlargement
File license
Fair use/fair dealing exception
Last edited by lolo799 on 2017-10-31, 21:36. Edited 1 time in total.

PCMCIA Sound, Storage & Graphics

Reply 84 of 86, by lolo799

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4 horizontal lines.png
Filename
4 horizontal lines.png
File size
94.11 KiB
Views
603 views
File comment
4x horizontal lines
File license
Fair use/fair dealing exception
4 pattern.png
Filename
4 pattern.png
File size
196.39 KiB
Views
603 views
File comment
4x pattern enlargement
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Fair use/fair dealing exception
9 pattern.png
Filename
9 pattern.png
File size
149.55 KiB
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603 views
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9x pattern enlargement, my screen res was 800*600 so the screenshot is cut, sorry for that.
File license
Fair use/fair dealing exception
3dfx no filtering.png
Filename
3dfx no filtering.png
File size
124.05 KiB
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603 views
File comment
3Dfx without bilinear filtering
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Fair use/fair dealing exception
3dfx.png
Filename
3dfx.png
File size
231.1 KiB
Views
603 views
File comment
3Dfx
File license
Fair use/fair dealing exception

It was completely fluid on my P200 with a Matrox Mystique card whichever enlargement style I chose, on my Toshiba laptop however, 4x horizontal lines mode was mostly fluid in 32k/64k color, as was 4x pattern mode in 256 colors, all the other enlarged modes were too jerky.
I have yet to try it on my 486 with a Cirrus VLB graphic card.

PCMCIA Sound, Storage & Graphics

Reply 85 of 86, by dr.zeissler

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leileilol wrote:
Cinepak is one. The videos on the Win95 cd used Cinepak and 22KHz ADPCM iirc. […]
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Cinepak is one. The videos on the Win95 cd used Cinepak and 22KHz ADPCM iirc.

ffmpeg can encode videos to an appropriate format for a stock win95 box (this being a .bat file for a SendTo operation)

ffmpeg.exe -i %1 -r 15 -s 320x240 -ar 22050 -acodec adpcm_ms -vcodec cinepak %1.avi

dunno what -r 24 and -s 480x360 cinepak would do for classic pentium specs though. also note that ffmpeg's cinepak encoder is slowwwwwwwww. sounds like a possible phil chart project to find the most efficient codec/fps/size for each old cpu. MP3 is definitely off the table for sound. Similarly, MPEG4 codecs are all P2 territory at the minimum (including the ye old DivX 😉 3.11)

Thx, that guy in the YT-Vid used a 286/10! for playing video (320x200).
How can I do this on my 286/8 ET4000/1MB ? What file format, what player?

What do you think?
Thx

Retro-Gamer 😀 ...on different machines

Reply 86 of 86, by Scali

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There was a format known as GRASP back in the day (usually files with .gl extension), which plays quite well on 286 or even 8088/V20 machines.
See here for more info: https://www.fileformat.info/format/grasp/egff.htm
Also, Autodesk Animator FLI or FLC files play quite well on low-end machines.
Deluxe Paint also has an animated format (LBM) which runs well on very low-end machines.

http://scalibq.wordpress.com/just-keeping-it- … ro-programming/