[x265] API or documentation problem for tiny images

[Vittorio Giovara]

On Tue, May 1, 2018 at 2:20 PM, Vittorio Giovara <vittorio.giovara at gmail.com
> wrote:

>
>
> On Fri, Apr 27, 2018 at 2:38 PM, Vittorio Giovara <
> vittorio.giovara at gmail.com> wrote:
>
>> Hi, when encoding very small videos, less than 64x64 x265 throws an error.
>>
>> x265 [error]: Picture size must be at least one CTU
>>
>> however the documentation clearly states that any valid size is supported
>>
>>     /* Width (in pixels) of the source pictures. If this width is not an
>> even
>>      * multiple of 4, the encoder will pad the pictures internally to
>> meet this
>>      * minimum requirement. All valid HEVC widths are supported */
>>     int       sourceWidth;
>>
>>     /* Height (in pixels) of the source pictures. If this height is not
>> an even
>>      * multiple of 4, the encoder will pad the pictures internally to
>> meet this
>>      * minimum requirement. All valid HEVC heights are supported */
>>     int       sourceHeight;
>>
>> This does not seem the case, as you need to fiddle with the maxCUSize
>> manually, and still doesn't work for images that are smaller than 16x16
>>
>> x265 [error]: max cu size must be 16, 32, or 64
>>
>> It doesn't seem like x265 exposes the crop parameters either (only the
>> default display window which is not appropriate for this use case), so it's
>> not possible to pad the image with black and just crop the relative amount.
>>
>> Do you have any advice for the above? Could you adjust the documentation
>> to reflect the current limitation of the API and possibly update the API to
>> support this use case?
>>
>> Thanks
>>
>
> Ping
>

second ping
-- 
Vittorio
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