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

[Mats Peterson]

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