[mythtv-users] Video file with poor playback on ION board

[Phil Wild]

On 23 January 2011 21:49, Richard Morton <richard.e.morton at gmail.com> wrote:
> On 23 January 2011 13:39, Phil Wild <philwild at gmail.com> wrote:
>> On 23 January 2011 21:13, Richard Morton <richard.e.morton at gmail.com> wrote:
>>> An easy method is Play the file in VLC and go to Codec Information
>>> from the menu to see how it is encoded. My guess is that the file is
>>> an HD DIVX/XVID/MPEG4part2 and this codec is not supported by
>>> graphics/hardware acceleration. Only MPEG2 and H264 are supported by
>>> the ION1 chipset. Or the file is H264 but it is using options in the
>>> spec which are not supported in hardware.
>>>
>>
>> Under codec details I see
>>
>> Steam 0
>>   Type: Video
>>   Codec: avc1
>>   Language: English
>>   Resolution: 1280x720
>>   Display resolution: 1280x720
>>   Frame rate: 23.976023
>>
>> Cheers
>
> http://en.wikipedia.org/wiki/AVC1
>
> in which case it was likely the options used to encode are not
> supported by the hardware and it has to resort to software decoding on
> the CPU and the CPU is not powerful enough for the options used and
> the bitrate.
> _______________________________________________

How do I determine what options were used?
What is the best way of transcoding this into something that is
playable with minimal impact on quality?

Cheers

Phil