Encoding H264 video for mobiles

[Kay19]

Hi there!!!

I have got a question...

I want to encode a video using x264 for a K800i and I know the phone specs, such as bitrate, fps, and profile level...

The K800i supports H264 Baseline Profile Level 1.2

Now my question:

I encode that video with the level command in x264...
And when I use MediaInfo it shows me that my video
has the Level@L1.2 (how it is got to be), but
when I copy the video to the mobile it doesn't work!!!
And now I know why... Because, even if you use
the level command it doesn't seem to change anything
in the options to be compatible with the selected profile
level...

How can I solve this problem???

I have even tried MediaCoder and MeGUI... Always
the same matter!!!

Any quick answer is helpful!!!

Thanks!!!

[nm]

Options:
1. Study H.264 and x264 a bit to find out what Baseline L1.2 is and how to set x264 appropriately.
2. Use a frontend that already has a suitable encoding profile/template. For example, many frontends have iPod profiles that might work without further tinkering.

[audyovydeo]

I encode that video with the level command in x264...

does x264 issue any [Warning]s when you run it ? Don't forget that --level switch lets you hardcode a level value in the stream, but x264 does not actually correct your settings, it merely warns you if it detects incompatibilities.

cheers
audyovydeo

[Kay19]

@nm: 1.) Yes, I have already downloaded some specs from english wikipedia, but the names for the options seem to be be different
than the settings I found in x264
2.) Is there any front-end out, where I can set the needed settings?

@audyovydeo: no when encoding the video it doesn't show neither warnings nor errors.
Is there any way to make x264 work with baseline 1.2 profile or what settings could I use?

@nm & audyovydeo: Thanks for your help!!!

[Dark Shikari]

If you want a frontend, try MeGUI?

[Kay19]

@Dark Shikari: Is there any link where I can download it with codecs (such as xvid-encraw, x264 and so on) ???

[Audionut]

MeGui has an autoupdate feature that will also download numerous things such as codecs.

[Jom]

Not sure if you're aware of this, but the K800 only supports 176x144 using h264, but can do 320x240 with xvid.
Normally I use MeGui for encoding, but Xvid4PSP has pre-defined profiles for the K800 using Xvid that do a very good job.

This works for me with x264 (I have a k810) :

x264.exe --pass 1 --bitrate 196 --stats "stats.stats" --level 1.1 --no-cabac --subme 1 --partitions none --qcomp 0.8 --me dia --threads auto --thread-input --sar 1:1 --progress --no-dct-decimate --no-psnr --no-ssim --output NUL "D:\Users\John\DVDRips\john.avs"

x264.exe --pass 2 --bitrate 196 --stats "stats.stats" --level 1.1 --ref 3 --mixed-refs --no-fast-pskip --no-cabac --subme 6 --partitions p8x8,b8x8,i4x4,p4x4 --qcomp 0.8 --me umh --threads auto --thread-input --sar 1:1 --progress --no-dct-decimate --no-psnr --no-ssim --output "video.mp4" "video.avs"

Level 1.2 doesn't work for me at all. The phone probably checks the level of the file before it plays back.

But I always use Xvid4PSP to create content for my phone (using Xvid) at 320x240, 256kbps vbr for the video. You drop frames if you go above ~350kbps, so you need to limit the bitrate variance not to exceed that.

[Kay19]

Thanks for all your replies!!!

@Jom: Thank you very much for your commandline options!!!
How can I restrict the bitrate variance?

[techouse]

Anyone tried to play x264 with Core Player on Symbian 9.1/9.2?