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

[Mats Peterson]

On 02/13/2016 11:40 AM, Mats Peterson wrote:
> On 02/13/2016 11:39 AM, Paul B Mahol wrote:
>> On 2/13/16, Mats Peterson <matsp888-at-yahoo.com at ffmpeg.org> wrote:
>>> On 02/13/2016 11:28 AM, Mats Peterson wrote:
>>>>>> Once again, how are we supposed to know how many colors the palette
>>>>>> consists of at the end of avpkt->data?
>>>>>
>>>>> palette size = packet size - width*height
>>>>>
>>>>
>>>> Nope. You have to take the stride in account as well, not just the
>>>> width
>>>> and height, and it varies in nut, depending on whether you use "-vcodec
>>>> copy" or "-vcodec rawvideo".
>>>>
>>>> Mats
>>>>
>>>
>>> And you'll have to calculate the stride by subtracting the palette size
>>> from the packet size, then divide by the height.
>>
>> Nope, pixels outside of width x height are ignored.
>> _______________________________________________
>
> I need the stride for the alignment to 16 bytes. It's not done for fun.
>
> Mats
>

And pixels outside of the width are still in the packet, that's what's 
called the stride.

Mats