[mythtv-users] encoding for Samsung Galaxy S i9000

John Baab john.baab at gmail.com
Thu Sep 23 20:53:59 UTC 2010


On Thu, Sep 23, 2010 at 4:00 PM, Stefan G. Weichinger <lists at xunil.at> wrote:
> Am 23.09.2010 17:18, schrieb John Baab:
>
>> In the next release of MythExport I am only releasing ffmpeg lines
>> that use presets, in an attempt to minimize the ffmpeg testing with
>> each release.
>>
>> The following should work for all android devices, you may need to
>> lower the resolution if its too high for your specific devices: ffmpeg
>> -i <input_file> -y -pass 1 -an -vcodec libx264 -vpre slowfirstpass
>> -vpre ipod640 -b 1500kb -bt 1000kb -threads 0 -s 800x480 -aspect 16:9
>> -f ipod <output_file> && ffmpeg -i <input_file> -y -pass 2 -vcodec
>> libx264 -vpre hq -vpre ipod640 -b 1500kb -bt 1000kb -threads 0 -s
>> 800x480 -acodec libfaac -ab 192kb -ac 2 -aspect 16:9 -f ipod
>> <output_file>
>>
>> This is fairly close to Patrick's ffmpeg line, but using the presets
>> where available.
>
> I wasn't successful with P's line, yours works now. I amlooking forward
> to the result, thanks to both of you!
>
> AFAI see I only get 720x576 from DVB-S (at least the "infile" is like
> that). Is it better to convert it to 800x480 (matching the physical
> pixels on the phone) or is this an unnecessary step just taking time?
>
> Stefan
>
>
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I prefer to match your phone's resolution (or go smaller), sometimes
they get picky if videos are too large and won't display.  You could
do some tests to see how much longer it takes, I doubt its much and
your file size will be smaller.  I recommend making a short minute or
two recording if you are messing around with ffmpeg, its a lot easier
than waiting for a full tv show to run.


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