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720p MKV (x264) video - low performance

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#1
ovecka

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I am sort of dissappointed about the 720p playback of G300. I've got a 3,5mb bitrate video (GoT episode) and it's virtually unwatchable with MX player. Is there a way to watch it without the need to decode the MKV?

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#2
Ubiquitoustastic

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What class SD card are you using? I have had no issue but for decent HD playback you need class 4.

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#3
ovecka

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It's an old Class 2 card. I'm going to try to copy the movie to the internal memory.

EDIT: Nah, It's the same from the internal memory.

Edited by ovecka, 12 May 2012 - 05:23 AM.

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#4
Mrian

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isnt the g300 800x400 pix

thats 320 pixels over kill with a 720p film

480p would be over kill....

just use a 480 p video should run smooth too

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#5
ovecka

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Of course I could do that but that would require recoding or redownloading the video. My goal was to avoid that and simply use the movies I've downloaded before.

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#6
mark ryan

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quick question also, can this phone easily run 720p MP4 movies? i cunnently own a zte blade and that struggles with 480p mp4! simple yes or no please :P

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#7
ovecka

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From my experience, the simple answer is NO

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#8
Mrian

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you could batch encode all of your videos into 480p....

720p wont show on a 480p screen maybe theres a way to down grade the pix ratio within a media player.

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#9
kyoiorikof97

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how to decrease the pixel ratio...for any player...please reply fast....

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#10
akarana

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quick question also, can this phone easily run 720p MP4 movies?

Simple answer: sort of. The player and H264 decoder can easily scale it to fit the 480p screen.
Longer answer: The OP's 3.5Mb/s has too much data, too fast a bitrate, so it chokes and gives jumpy playback. When I was encoding 720p for web playback I always set it to the slowest that gave a reasonable quality. Sure, this is a subjective test, I used 2Mb/s. But this G300 phone has to scale as well as playback, so my 2Mb/s .MP4 are right at the limit of watchability. But then I've been watching too much old 8:3 anime :P
Another problem with high bitrate movies is the different decoding overheads of the different wrappers, eg. MKV, FLV, AVI, M4V etc.

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