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Command-line tool splices and edits video and audio

Published: 6th Apr 2009, 21:51:34 | Permalink | Printable

First port of MPGTX 1.3 for RISC OS allows users to splice and join MPEG video and MP3 audio. Plus new release of FFmpeg, which can convert videos into formats playable on RISC OS computers.

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I've done this for years. And I mean ten years ago on RISC OS.

All you do is fut vid 1 into !zap go to end of gobbledegook.... paste in next file and save. hey presto. 2 videos joined. :-)

Cheers Bob

 is a RISC OS Usernijinsky on 7/4/09 10:20AM
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Is it possible to use either method to join a large number of jpeg images into an mpeg?

This would prove very useful to me.

 is a RISC OS UserMonty on 9/4/09 8:07PM
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Well, it accepts GIFs as an input format, so you can have a slideshow through there, and also indivdual PNGs, so if you convert your JPEGs to PNGs, that should work too. Perhaps JPEGs are supported... it has an option to list available codecs. You can auto-increment the input/output files for individual images, so that would work for a large number of files.

That said, I've tried to convert a GIF with the first release of !ffmepg, and got an AVI, a FLV, and a better FLV from the AVI, and none of them play on RO or PC! However, FLVs that do play on PCs copnvert to MPEG1s, and they display smoother (more frames shown) on the RPC than they do on the PC, which should go faster because of hardware support (?).

 is a RISC OS UserAnon on 14/4/09 12:04PM
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Hi Monty You would definitely be able to do this in the latest version of Cineworks, if you can get hold of it. This lets you arrange JPEGs as clips along the timeline and export as MPEG.

Unfortunately the version you can download doesn't support MPEG, just Replay.

However, if you just want to create a presentation and it doesn't have to be MPEG, you would probably be better off using one of the Powerpoint clones which just treat the JPEGs as slides.

Does anybody reading this have the latest version of Cineworks that supports more audio & video formats, including MPEG and AVI ???????

Best wishes Jon Robinson (Leeds)

 is a RISC OS UserJon on 16/4/09 12:46PM
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Cineworks mannual: [link]

Cineworks download: [link] (bottom of page)

 is a RISC OS UserAnon on 17/4/09 6:46PM
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Thanks for the pointers. The link to the download doesn't seem to work, however.

 is a RISC OS UserMonty on 20/4/09 3:55PM
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You need to add the ~henrik to the end of the download link, or go the manual page and click the link there. HTH Dave

 is a RISC OS Userjustice on 20/4/09 6:45PM
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Apologies, that was a bug in the way Drobe auto-links URLs. The link should be working now.

 is a RISC OS Userdiomus on 20/4/09 10:41PM
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I'd like to echo Jon's request for the full version of !cineworks.

The one available on that link doesn't use anything but replay, which makes it unfortunately unusable for my purposes (trying to build a video editor from an RPC).

I wonder whether, as it is no longer comercial software, any one who owns a copy would consider uploading it. Or, if I'm wrong and it is still under comercial licence, I'd like to buy a copy.

 is a RISC OS UserMonty on 23/4/09 9:26AM
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BUGFIX

Cineworks also comes with !ARWork, a repository for temporary files. However, there is a small bug with the download, caused by ZIPfiles not storing empty directories.

To fix this, locate your copy of !ARWork, and create a directory called Work inside it, then run it from the desktop, then run !Cineworks. All should then be well.

AUTHORS

CineWorks 1.07 was sold by Oregan:

Oregan Software Developments 36 Grosvenor Avenue Streetly Sutton Coldfield B74 3PE Tel. 021 353 6044 (number out of date) email & domain name sold on

It was written by Henrik B. Pedersen, Søren Lange helped with MPEG-Works. HBP also hosts the freeware download site. He says no help is available with the freeware version, implying it is with the later ones. Requests for donations feature in various places, so that look's positive.

Søren Lange Aldershvilevej 113, 1, -1 DK-2880 Bagsvaerd Denmark lange@dk-online.dk

HBP appears to move around a lot (or possibly have lots of homes/offices).

Recent (two months ago) contact details are on his CV: [link]

He also has a software consultancy, HBP Technology, "Development of customer specific software".

FREEBIES

I have written a pocket screen recorder, !Camcord, which you may download [link] Also in the (29Kb) archive is !Lynx, for er, creating links. There are some short single-tasking BASIC programs for processing !Camcord output; see the help.

I have uploaded some test output produced with this to YouTube: [link]

MORE EXPERIMENTS

I did managed to get Cineworks to load a slideshow, by dropping a multi-sprite spritefile in, then adjusting the length so it is stretched over the time required. MPEG export actually worked from this, but re-playing this showed it to be semi-corrupted. It played on RPC and PC, but looked like an acid trip: The colour depth was reduced and the palette was corrupted.

I think your best bet (Cineworks aside) for a native video editor is using streams of uncompressed stills, having a separate processor, and porting a converter from somewhere else.

A few months ago, I experimented with using POV-ray as a video editor: This worked quite well, but isn't exactly straightforward.

On the bright side, codecs are like clocks: They don't need anything external. On the dark side, they have many variants and combinations, which means a lot of combinations won't play anywhere.

I will continue experimenting with ffmpeg, and I think trying combinations via the command line may be the easiest way forward.

 is a RISC OS UserAnon on 24/4/09 1:25PM
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Hi Monty

I’m pretty sure that Henrik Pedersen was the original author of CineWorks, so it might be worth contacting him, to see if he will let you have a copy of the 1998, MPEG- capable version of his program.

The problem with digital video on RISC OS was that, before the 1998 version, you needed a £500 digitiser card to get your own footage into Replay format, and the quality was severely limited by the hard drive speed on your RiscPC.

Now, however, with FFMpeg’s ability to convert many more video formats to MPEG, which can be played with KinoAmp, the MPEG version of CineWorks should be much more useful than it ever has been, if anybodycan rescue it, especially if some brave soul volunteers to 32 bit it !!!!!!!

See if you can get in touch with Henrik, and let us know how you get on.

Regards Jon Robinson (Leeds)

 is a RISC OS UserJon on 24/4/09 4:02PM
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Dear Monty

I had a go at using the freely available version of CineWorks with some JPEGs over the bank holiday, to see if you could make an MPEG out of them.

I managed to lay the JPEGs out on the time line, once I'd converted them to sprites, use a WAV file as a sound track, and save it as a playable Replay movie.

However, there is only one Replay to MPEG convertor available, called MakeMPEG, and when I tried it with the Replay file, not only was it very slow, but it also generated a floating point error, leaving an unplayable MPEG file.

I don't have the later MPEG- capable version of CineWorks, so I don't know whether that would fare any better.

If anybody reading this has it, perhaps they could have a go and tell us what happens.

However, once a RISC OS 5 version of the BeagleBoard becomes available, we will have a RISC OS system with a 600 MHz main processor and a dedicated AV processor, specifically designed for fast MPEG and MP3 playback.

At the Wakefield Show the RISC OS Open people were saying that one of the first positive benefits of this, was that we were likely to see the first real-time DVD player on RISC OS.

For the first time we will have hardware that makes digital video on RISC OS a doable proposition.

What we really need is either for the code for the latest version of CineWorks to be made open source, or, even better, for CJE to take over development and support of the product, so that it can be made 32 bit and also be properly main- tained and supported.

Jon Robinson (Leeds)

 is a RISC OS UserJon on 5/5/09 4:29PM
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"However, once a RISC OS 5 version of the BeagleBoard becomes available, we will have a RISC OS system with a 600 MHz main processor and a dedicated AV processor, specifically designed for fast MPEG and MP3 playback." Actually, it has a DSP, of which some pre-compiled code for decoding some popular video and audio formats is available; for a fee. It's quite substantial. And so is the cost of the Windows-only development tools for this DSP.

 is a RISC OS Userrjek on 5/5/09 5:02PM
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Thanks all. I'll let you know how I get on over the next month.

 is a RISC OS UserMonty on 6/5/09 7:20PM
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Hi Rob When you say that the DSP code is available for a fee, does that mean that people who want to build devices around this motherboard have to pay to unlock it on every machine sold?

Also how much are the development tools if the Beagle RISC OS people want to buy a copy?

Regards Jon Robinson

 is a RISC OS UserJon on 7/5/09 10:48AM
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Okay, I've tried three e-mail addresses for Mr Pedersen now. Third time lucky I hope. What I could do with knowing about it is whether its stable on RO5 or RO6 and whether its output can be translated to MPEG or single frame JPEGs.

Fingers crossed.

 is a RISC OS UserMonty on 7/5/09 11:41AM
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And the MAILER DAEMON shoot it straight back to me. I'm all out of ideas for contacting him. Anyone?

 is a RISC OS UserMonty on 7/5/09 11:52AM
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Try hbp@phys.au.dk --from [link] or contact his department directly.

 is a RISC OS UserAnon on 9/5/09 5:13PM
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I have an HTML conversion of the CineWorks manual online at [link]

I have regenerated about half of the graphics, and grabbed images from the scanned version for the rest, which I will go over in the next few weeks.

This used OCR software !STR, announced by drobe.

 is a RISC OS UserAnon on 29/5/09 2:02PM
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