On Mon, Jun 22, 2020 at 12:12:04AM +0530, gautamr...@gmail.com wrote:
> From: Gautam Ramakrishnan <gautamr...@gmail.com>
>
> This patch removes a check which throws an error if
> the log2 precinct width/height is 0. The standard allows
> the first component to have 0 as the log2 width/height.
> ---
> libavcodec/jpeg2000.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/libavcodec/jpeg2000.c b/libavcodec/jpeg2000.c
> index 73206d17f3..1aca31ffa4 100644
> --- a/libavcodec/jpeg2000.c
> +++ b/libavcodec/jpeg2000.c
> @@ -509,9 +509,6 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp,
> // update precincts size: 2^n value
> reslevel->log2_prec_width = codsty->log2_prec_widths[reslevelno];
> reslevel->log2_prec_height = codsty->log2_prec_heights[reslevelno];
> - if (!reslevel->log2_prec_width || !reslevel->log2_prec_height) {
> - return AVERROR_INVALIDDATA;
> - }This checked that log2_prec_width... has been initialized. Is there some other check that ensures this is not just 0 from allocation which IIUC is not an allowed path in the spec thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB No great genius has ever existed without some touch of madness. -- Aristotle
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