[FFmpeg-devel] [PATCH] avcodec/aacpsy: clip global_quality within the psy_vbr_map array boundaries

James Almer jamrial at gmail.com
Fri Apr 14 15:16:07 EEST 2023


On 4/13/2023 9:58 AM, James Almer wrote:
> Fixes ticket #10317.
> 
> Signed-off-by: James Almer <jamrial at gmail.com>
> ---
>   libavcodec/aacpsy.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c
> index 4c5ab2c9d5..933369e445 100644
> --- a/libavcodec/aacpsy.c
> +++ b/libavcodec/aacpsy.c
> @@ -267,7 +267,7 @@ static av_cold void lame_window_init(AacPsyContext *ctx, AVCodecContext *avctx)
>           AacPsyChannel *pch = &ctx->ch[i];
>   
>           if (avctx->flags & AV_CODEC_FLAG_QSCALE)
> -            pch->attack_threshold = psy_vbr_map[avctx->global_quality / FF_QP2LAMBDA].st_lrm;
> +            pch->attack_threshold = psy_vbr_map[av_clip(avctx->global_quality / FF_QP2LAMBDA, 0, 10)].st_lrm;
>           else
>               pch->attack_threshold = lame_calc_attack_threshold(avctx->bit_rate / avctx->ch_layout.nb_channels / 1000);

Will apply.


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