SD channels to HD

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SD channels to HD

Matthew Reus
Hello,

How can we use ffmpeg to transcode SD channels of resolution 720*576 to HD
format .
So we can obtain best picture qualtiy for live streaming , wihtout
interlace and frame drops .

I am using ubuntu server and have compile ffmpeg on it . please advise on
SD to HD conversion .
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Re: SD channels to HD

Jimmy Asher

From: ffmpeg-user [[hidden email]] on behalf of Matthew Reus [[hidden email]]
Sent: Tuesday, January 29, 2019 7:32 PM
To: [hidden email]
Subject: [FFmpeg-user] SD channels to HD

Hello,

How can we use ffmpeg to transcode SD channels of resolution 720*576 to HD
format .
So we can obtain best picture qualtiy for live streaming , wihtout
interlace and frame drops .

I am using ubuntu server and have compile ffmpeg on it . please advise on
SD to HD conversion .
_______________________________________________


HI,

you could look at the  filtergraph command and its options and look at how to scale and pad the video to create a letter box formatted output.

ffmpeg -i input.mp4 -vf "scale=..., pad=..." output.mp4

help docs is a good place to start https://trac.ffmpeg.org/wiki/FilteringGuide

JDA

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Re: SD channels to HD

Matthew Reus
but quality is highly degraded , interlaced how can we manage on this case

On Wed, Jan 30, 2019 at 6:34 AM Jimmy Asher <[hidden email]>
wrote:

>
> From: ffmpeg-user [[hidden email]] on behalf of Matthew
> Reus [[hidden email]]
> Sent: Tuesday, January 29, 2019 7:32 PM
> To: [hidden email]
> Subject: [FFmpeg-user] SD channels to HD
>
> Hello,
>
> How can we use ffmpeg to transcode SD channels of resolution 720*576 to HD
> format .
> So we can obtain best picture qualtiy for live streaming , wihtout
> interlace and frame drops .
>
> I am using ubuntu server and have compile ffmpeg on it . please advise on
> SD to HD conversion .
> _______________________________________________
>
>
> HI,
>
> you could look at the  filtergraph command and its options and look at how
> to scale and pad the video to create a letter box formatted output.
>
> ffmpeg -i input.mp4 -vf "scale=..., pad=..." output.mp4
>
> help docs is a good place to start
> https://trac.ffmpeg.org/wiki/FilteringGuide
>
> JDA
>
> _______________________________________________
> ffmpeg-user mailing list
> [hidden email]
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> [hidden email] with subject "unsubscribe".
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Re: SD channels to HD

Moritz Barsnick
On Wed, Jan 30, 2019 at 08:04:29 +0545, Matthew Reus wrote:
> but quality is highly degraded , interlaced how can we manage on this case

You should show us your actually used ffmpeg command line and its
complete, uncut console output, so we can understand what your are
doing. This will also show us some details about your input material
and what you are trying to achieve. E.g. we don't even know which
encoder you are trying to use...

(Eventually, you should also read up on the docs, which tell you how to
change the quality of your encoding, and how to deinterlace.)

Moritz
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