Sony Ericsson / Sony : General : K750i 30fps 3gp capable.
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Posted a link above
Thats only 140kbit/s video
Naturally you need to keep aspect ratio, you can still do that when you crop, by cropping the right amount of pixels from all sides. I understand that sometimes you cant crop completely because you would lose to much of the video if its 16x9, but still.
Not saying theres anything wrong with your method, and naturally 128kbit/s audio sounds better, but I really dont think its needed for encoding a Top Gear episode. And for musicvideos 96kbit/s aac is more than plenty quality audio, that would be the better quality than 128kbit/s mp3.
I only have a poor original of call on me to encode from, but here it is like I would have encoded and cropped it.
Its only half the filesize of yours, but still acceptable quality for playback on the mobile.
http://rapidshare.de/files/2527352/EricPrydsCallOnMe.mp4.html
[ This Message was edited by: numb on 2005-06-21 17:46 ]
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Posted: 2005-06-21 18:29:15
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On 2005-06-21 11:10:26, numb wrote:
#orange
I am allready involved with the S//E development department and well aware what the k750 is capable off or not, dont need to contact no help desk.
By saying that, then you can actually provide data from system level analizing tool, which are used to measure the system performance at the run time in different situtations. You could also get video performance data out of such tool.
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On 2005-06-21 11:10:26, Firefreak wrote:
No matter what you say it's sooo much more fluent than 15fps. It looks exactly as smooth as the original video on the computer.
As I said, that's quite hard to notice since mobile video players are usually optimized in a such way that they don't drop frames randomly. At the decoding time the frames are compared with each other and the frames where the information is not changed or is changed only little compared to the previous frame are dropped. That's why it may be very hard to notice with the human eye.
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Posted: 2005-06-21 19:28:51
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#orange
That would propably be possible yes, but I dont really see a reason to make such a big case of it.
If frames are dropped it will happen randomly when the datarate gets to high for the phone or storagemedia (phonememory or memorycard) or for the decoder to keep up, and you would be able to see it as clear stutter in the playback.
Im not directly involved in develpment of Mobile Video Players but I refuse to beleive they are optimized to drop frames based on framecomparison of each frame at decoding time and from that deside which frames to drop to avoid stutter. Its much more cpu demanding to compare each frame and deside which to drop than it is to actually play them. Framecomparison is done when you encode and compress the video based on different encodingtechniques. Which is why it requires rather extensive cpu power to encode for instance mpeg2 in real time. But lets not get into a long and winded discussion about encoding/decoding. Point is that you can actually with the human eye see the difference on a K750 between a 15fps and a 25fps encoded video, and if the bitrate is not to high you can play 25fps video very smooth on the K750.
Lets just agree that we have a difference of opinion and leave it at that.
[ This Message was edited by: numb on 2005-06-21 19:10 ]
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Posted: 2005-06-21 20:04:40
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Firefreak i downloaded ur eric prydz video and yeah the quality is good and it runs nicely until i switch to full screen! Then it will pause every 1 or 2 seconds and looses sound... ive tried on the phones memory and on the memory card but alas its still unwatchable at full screen! anyone else the same?
[ This Message was edited by: n3x on 2005-06-22 08:05 ]
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Posted: 2005-06-22 08:58:48
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On 2005-06-21 18:29:15, numb wrote:
Posted a link above
Thats only 140kbit/s video
Naturally you need to keep aspect ratio, you can still do that when you crop, by cropping the right amount of pixels from all sides. I understand that sometimes you cant crop completely because you would lose to much of the video if its 16x9, but still.
Not saying theres anything wrong with your method, and naturally 128kbit/s audio sounds better, but I really dont think its needed for encoding a Top Gear episode. And for musicvideos 96kbit/s aac is more than plenty quality audio, that would be the better quality than 128kbit/s mp3.
I only have a poor original of call on me to encode from, but here it is like I would have encoded and cropped it.
Its only half the filesize of yours, but still acceptable quality for playback on the mobile.
http://rapidshare.de/files/2527352/EricPrydsCallOnMe.mp4.html
[ This Message was edited by: numb on 2005-06-21 17:46 ]
Well... that video is not sufficient in my opinion. Not when I know that the K750 can do better... it's like running my Ferrari on 2000rpms only because "that's ok"....
Anyhow... luckily we all have different opinions... otherwise this forum wouldn't be what it is...
I respect the fact that you guys don't mind the 15fps quality videos but I'll be making mine 25 fps...
And n3x... the K750 does not have the processing power to rescale a video at that bitrate... I'll be trying out to see which the top 25fps bitrates the K750 can handle...
_________________
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K750i (R1J002 EU1 Europe_4)
K700i (R2AT003 EU4 Flashed using DaVinci)
[ This Message was edited by: Firefreak on 2005-06-22 08:22 ]
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Posted: 2005-06-22 09:17:28
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Ah ok firefreak let me know any good settings you come up with, i need some decent quality videos to watch at work in fullscreen!
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Posted: 2005-06-22 09:33:39
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Shouldn't you be working at work instead of watching movies ?
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Posted: 2005-06-22 13:18:12
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I multitask
cmon its a boring job!
I tried Recode last night and to be honest i dont like it abit! Its stable and well laid out but it lacks changable settings... i cant seem to change to mono sound? u cant set the frame rate? Im sure there were more but those 2 are pretty important as the phone cant handle high bitrates with 25fps and 15fps looks pony! and when encoding an episode of family guy or the simpsons do i really need stereo sound? its just a waste of space but i cant change it with nero... im goin back to mpegable. found some good settings last night for full screen so im happy
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Posted: 2005-06-23 09:06:37
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On 2005-06-23 09:06:37, n3x wrote:
I multitask
cmon its a boring job!
I tried Recode last night and to be honest i dont like it abit! Its stable and well laid out but it lacks changable settings... i cant seem to change to mono sound? u cant set the frame rate? Im sure there were more but those 2 are pretty important as the phone cant handle high bitrates with 25fps and 15fps looks pony! and when encoding an episode of family guy or the simpsons do i really need stereo sound? its just a waste of space but i cant change it with nero... im goin back to mpegable. found some good settings last night for full screen so im happy
Use the ImToo MPEG Encoder... and register (read crack) it... you can change pretty much every setting you could possibly need...
The settings I use to encode video to my K750i...
http://www.algonet.se/~mcstream/settings.JPG
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Posted: 2005-06-23 09:21:05
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Yeah ive got imtoo aswell but i think mpegable is just easier to use especially when u need to crop a video to fill the mobiles screen! I'm stickin with mpegable
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Posted: 2005-06-23 09:45:53
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