Author Topic: [SOLVED] Dazzle 100 101 Analog-Digital Conversion  (Read 4749 times)

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Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #15 on: October 20, 2013, 07:52:16 pm »
If I can get a few uninterrupted minutes here this afternoon I will test the recording & playback of the converted stream.

Presuming that all goes well I will report back & then we will be 100% solved!

Sure appreciate the assist & that others may find and follow your instructions here.

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #16 on: October 21, 2013, 12:36:07 am »
OK ... we can go with SOLVED!   8)

I saved the custom line of settings to a little text file on the desktop.

Code: [Select]
:v4l2-standard=NTSC :input-slave=alsa://plughw:DVC100 ::v4l2-input=0 :v4l2-width=-640 :v4l2-height=-480 :v4l2-fps=30 :no-v4l2-audio-mute :live-caching=300

If there isn't a place in VLC where that long line of settings may be saved there should be.

I'm finding it necessary to use Console to toggle off "mute" every time as something keeps resetting that.

Code: [Select]
bash-4.1# v4l2-ctl -c mute=0

I'm guessing that somewhere in VLC mute can be set to default "on", or is it not VLC that is changing that?

Also, changed the default Save location so it's not in Root eating up user space (a Puppy Linux thing).

Once again I sure appreciate the assist - this is a very valuable new tool!

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #17 on: October 21, 2013, 01:00:34 am »
Ooops!

Just made a recording then went to playback using xine and although the audio level was a little low it played fine.

When I tried in VLC it complained about a broken index, rebuilt it, then played fine - video was better than in xine and audio level was up where it belonged.

Any thoughts re. the index matter, please?

I may as well invest the time to get this last detail in order - even though VLC does the repair - it's one extra step it would be good to avoid, if possible.

Thanks again.

Offline SeZo

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #18 on: October 21, 2013, 08:21:32 pm »
Hmm.  I have not had that problem. It could be down to the encoder you using.
Try setting (if you using AVI):
Tools -> Preferences -> (Show Settings - All) -> Input/Codecs -> Demuxers -> AVI -> Force Index Creation
This might or might not help you but worth the try.

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #19 on: October 21, 2013, 09:43:38 pm »
I'll give that a try and report back.

Also, I converted and recorded a VHS source that is 12 minutes long and it's 11G.

Is there a way to compress it without doing harm or are AVI files always huge?

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #20 on: October 21, 2013, 09:50:16 pm »
Hmm.  I have not had that problem. It could be down to the encoder you using.
Try setting (if you using AVI):
Tools -> Preferences -> (Show Settings - All) -> Input/Codecs -> Demuxers -> AVI -> Force Index Creation
This might or might not help you but worth the try.

Tools -> Preferences -> (Show Settings - All) -> Input/Codecs -> Demuxers ->

It actually says "Demux module"

I get this far but there is no "Force Index Creation" in the drop-down.

There is an "AVI Demuxer" option and when selected no further step is offered - neither is one offered after Save.

Offline SeZo

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #21 on: October 21, 2013, 10:36:57 pm »
When you get to Demuxers expand the category (in the left hand pane) and you should find AVI in the drop-down list

Quote
Is there a way to compress it without doing harm or are AVI files always huge?

They are if you do not use the transcoding option.
You could try in VLC:

Media->Convert / Save->Capture Device:
 Set it up as previously

Click Convert / Save
    Add destination file
->Settings->Profile
   If required (or just select from pre-built):
    ->Create new profile (adjust to suit)
   Name = Video - AVI
   Encapsulation = AVI
   ->Video codec
      Video (tick)
      Codec = MPEG-4
      Bitrate = 8000 kb/s
   ->Audio codec
      -Audio (tick)
           -Keep original audio track (tick)
   -Save

Select profile Video - AVI

Press Start button to begin.

I personally prefer to capture without transcoding (storage space permitting) as my machine is not quite up to transcoding on the fly.
I would then use another transcoding program to reduce the file size.


« Last Edit: October 21, 2013, 11:28:23 pm by SeZo »

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #22 on: October 22, 2013, 04:35:19 am »
When you get to Demuxers expand the category (in the left hand pane) and you should find AVI in the drop-down list

Got it, thanks!

Quote
Is there a way to compress it without doing harm or are AVI files always huge?

I personally prefer to capture without transcoding (storage space permitting) as my machine is not quite up to transcoding on the fly.
I would then use another transcoding program to reduce the file size.
[/quote]

I was hoping someone would get OpenShot 1.43 compiled for Puppy Linux LH64-602b but they want to wait for v2.0 (due in December) since it's a major rewrite.  (Compiling an app like that is way over my head.)

I have previously tried Avidemux without good results.

What Linux-friendly video editor would you use post-conversion (via the steps you have been leading me through with VLC) to reduce the file size?

Perhaps it's already in the repository LH64 uses ...

Offline Mark Greaves (PCNetSpec)

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #23 on: October 22, 2013, 11:05:41 am »
Arista
or
WinFF
WARNING: You are logged into reality as 'root'

logging in as 'insane' is the only safe option.

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #24 on: October 22, 2013, 11:14:13 pm »
I will see if Arista is available for this 64-bit setup.

I also just noticed that a "transcoder ffmpeg frontend" that Help -> About identifies as "Transcoder 0.0.5" is preloaded.

Anyone familiar with using it for this purpose, please?

Offline SeZo

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #25 on: October 23, 2013, 12:01:54 am »
I tend to use FFmpeg or mencoder on the command line to reduce the file sizes.
You could try:
Code: [Select]
ffmpeg -i input.avi -c:v mpeg4 -vtag xvid -qscale:v 6 -c:a libmp3lame -qscale:a 4 output.avi
Change the -qscale:v 6 to lower value to get higher bit rate (file size) or to higher value to get lower bit rate (file size)
A change of 6 will double or halve the resulting bit rate.

Offline HandyGeek

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #26 on: October 23, 2013, 04:40:09 am »
YOU are amazing and THAT is amazing!

FROM: 11G

TO: 242M

I can see some degradation in quality & loss of audio but it's marginal for the value-added of reduced size.

Thanks!

We can call this one SOLVED++

David

Offline Mark Greaves (PCNetSpec)

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #27 on: October 23, 2013, 04:30:06 pm »
@SeZo

See .. I knew it ;)
WARNING: You are logged into reality as 'root'

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Offline SeZo

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Re: Dazzle 100 101 Analog-Digital Conversion
« Reply #28 on: October 23, 2013, 06:38:09 pm »
Quote
See .. I knew it ;)

Lucky draw, I guess :P

@HandyGeek
If you are concerned with the audio then you could change it to say -qscale:a 2
Audio does not add much to the file size, so you could up the bitrate by reducing the -qscale:a parameter.

Did you know that if you go to the first post you can edit the title to add SOLVED as instructed here:
If you created the first posting in the topic, just select "Modify", then change the "Subject" line of the topic to include [SOLVED] at the beginning.

Offline HandyGeek

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Re: [SOLVED] Dazzle 100 101 Analog-Digital Conversion
« Reply #29 on: October 24, 2013, 02:14:39 am »
Thank you re. tweaking the audio level without significant increase to the file size.

[SOLVED] now precedes the Subject.

Sure appreciate the assist - I hope many will benefit from this - I imagine used Dazzle devices may be in sudden demand.   ;D

 


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