Converting MP4 File to HD - 700 x 404

[aaronoafc]

Hi,

I have got an MP4 file of a sports event which, when watched on a laptop is okay however when I stream to a 32 inch HDTV it does become a bit of a crappy picture (presumably due to the screen being much bigger than on a 15 inch laptop screen?).

The file is MP4 which video resolution of 704 x 400? I thought it was 720 x 480 however this file says it is 704 x 400.

I was going to convert it to HD which would dramatically increase the file size but I'm willing to wait and do that for a watchable pic. What would be best to convert it to? MP4 HD? I use Xillisoft video converter. Would converting it to this dramatically increase the picture quality at all? or would it be a waste of time?

Thanks

[DB83]

The quality of the original is dependant on the bitrate of the video. What does mediainfo tell you about the bitrate ?

File size = run time * bitrate. You would need a higher bitrate if the streaming to the tv is not doing any up-converting (explains the poor quality) to allow for the larger frame size under HD.

Ultimately, the quality of the conversion, even at a higher bit rate, will depend on the quality of the original. Quality does not increase by throwing more bitrate at the conversion.

[aaronoafc]

If I'm using Tversity to stream - what settings would allow for a higher bitrate on the stream? is there any better software to use ?

[jman98]

aaronoafc - You don't understand what you were told, probably because like a lot of new members, you may have already made up your mind on what you think the problem is and you are really and truly looking for someone to validate your preconceptions rather than solving the issue at hand. Rather than just get pissed off at my bluntness, think seriously about what I said.

Streaming is NOT your problem. Your problem is most likely that the source is a low bit rate encoding and you're blowing it up to full screen and seeing the flaws in it. Install MediaInfo and post the details here. We can tell from that if you've got a low bit rate source. If so, you can't really fix it - garbage in, garbage out. The information needed to make the video better was lost in the conversion to a (presumably) low bit rate MP4 file. It's something like me giving you a photograph, ripping it in half, burning my half and then you wanting to put my half back together from the ashes. You'll have to get the original negative to get the full photo again. Similarly, your problems can really only be fixed at the original source video. I know nothing about Tversity but nothing you have said makes me think that there's any possible way to fix this issue via Tversity.

[aaronoafc]

Not pissed off at all - answered my question! I will look once I get home and post the results.

Thanks

[aaronoafc]

Yes it does seem like it is that, when I blow up the video, you can see the flaws on my full screen on my TV. I will check the details when Im home

[DB83]

Well I wasted 10 minutes watching a video on the tversity site - the vid was 30 minutes long but I gave up after 10 as I had heard enough.

I heard the following - "It converts on the fly","You do lose quality"

So the streaming certainly does not help the cause. But I doubt that you can improve by throwing more bitrate in to the stream as bitrate means something rather different here. Here you are pushing data across a local network. If your network is slow then the video will look bad irrespective of how it is created.

Those two remarks were enough for me.

But if you want an answer to your question then you need to post a topic in the correct place in the forum. Guys who have ANY knowledge of this software will not pick up from this topic

[jman98]

I heard the following - "It converts on the fly","You do lose quality"

So the streaming certainly does not help the cause.

Hmm... really did not expect that. In that case it could be the streaming but as DB83 says, you can't fix that by throwing bitrate at this issue. If it's really the streaming screwing it up, you'll have to give up on Tversity and find another solution. The file resolution is small enough that the network is not likely to be the problem. Not impossible, but not likely unless maybe the bitrate was insanely high, but you shouldn't have quality issues if that was the case.

[aaronoafc]

Bit rate for the file is "1 262 kbs" ?

[DB83]

Is this the same video ?

The dimensions are NOT as you described them in the initial post.

So maybe that streaming software changes the dimensions as well. Not good.