[FFmpeg-devel] [PATCH v9] lavc/rawdec: Remove monowhite switching code for 1 bpp AVI without a palette

[Mats Peterson]

On 02/13/2016 12:57 PM, Mats Peterson wrote:
> On 02/13/2016 12:54 PM, Mats Peterson wrote:
>> On 02/13/2016 12:52 PM, Mats Peterson wrote:
>>>>> just double checked, this is not the case in written pal8 nut files
>>>>> nor does the nut spec say anything about that.
>>>>>
>>>>
>>>> Then check an odd-width nut file like the one below. And FFmpeg doesn't
>>>> care about specs when using "-vcodec copy". The stride will be the one
>>>> of the original data, whether it's 2, 4 or some other amount of bytes.
>>>>
>>
>> The stride will be *aligned* to 2, 4 or some other amount of bytes.
>>
>> Mats
>>
>
> Try "ffmpeg -i 8bpp_129.avi -vcodec rawvideo 8bpp_129.nut" with the file
> below. It will have a stride aligned to 4 bytes like the original AVI
> file, and per the Microsoft specification, since it doesn't "-vcodec
> copy" won't touch the video data.
>
> https://drive.google.com/open?id=0B3_pEBoLs0faekxWUTdkVGNTTlk
> _______________________________________________

I mean "ffmpeg -i 8bpp_129.avi -vcodec copy 8bpp_129.nut" of course.

Mats