From 2441e53c0aeef4b0ec1453a295624a874dec7a6c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= Date: Tue, 27 Dec 2022 21:24:18 +0100 Subject: [PATCH] avfilter/palettegen: add a warning about supporting only sRGB --- libavfilter/vf_palettegen.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/libavfilter/vf_palettegen.c b/libavfilter/vf_palettegen.c index 3178c43ab9..ba81739d27 100644 --- a/libavfilter/vf_palettegen.c +++ b/libavfilter/vf_palettegen.c @@ -451,9 +451,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) { AVFilterContext *ctx = inlink->dst; PaletteGenContext *s = ctx->priv; - int ret = s->prev_frame ? update_histogram_diff(s->histogram, s->prev_frame, in) - : update_histogram_frame(s->histogram, in); + int ret; + + if (in->color_trc != AVCOL_TRC_UNSPECIFIED && in->color_trc != AVCOL_TRC_IEC61966_2_1) + av_log(ctx, AV_LOG_WARNING, "The input frame is not in sRGB, colors may be off\n"); + ret = s->prev_frame ? update_histogram_diff(s->histogram, s->prev_frame, in) + : update_histogram_frame(s->histogram, in); if (ret > 0) s->nb_refs += ret;