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Yes, 3GP is only a container, just like an AVI. DIVX/XVID relate to AVI the same way H264 relates to 3GP or MP4 containers. 3GP is "limited" only when talking about compatibility, as some cheaper media devices won't scan through the whole stream to check for the underlying format (which it might support), and instead it will give up as soon as it sees it's wrapped into the 3GP container. If you have such a case, there's plenty of converters online which can convert 3GP to MP4, even without recompressing the whole video (so no loss of picture quality). Regarding mono/stereo sound, I see that audio is encoded as stereo (48Khz, 192Kbit), but AFAIK, only the microphone on the back of the phone is active when recording videos? I'm not completely sure about that, but in case of an MP3 audio, the resulting 3GP filesize should not change, as mono audio stream is actualy compressed as stereo, but with two identical mono streams.
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(2014-02-21, 03:01)danyno1 Wrote: why don't they just set it on mp4 like any other high end device?? I don't get it why they try to be so "UNLIKE" in a useless way on some parts.... .
does it have anything to do with the mediatek CPUs or maybe GPU (maybe lack of encoding power while recording??)
It's not a lack of encoding power, because as we already said, 3gp is a container, or a wrapper if you will. The real underlying video/audio streams are the same ones found inside mp4 container, so there's really no loss of video quality or performance penalty between to two. Maybe it has something to do with licence rights? Maybe it was cheaper for them to implement arhaic 3gp support (which indeed does the job). Just guessing.
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