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-rw-r--r--libswscale/utils.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c
index eea32a130a..9f0bb7a8b9 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -845,6 +845,19 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
// reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
+ if (flags & SWS_FULL_CHR_H_INT &&
+ dstFormat != PIX_FMT_RGBA &&
+ dstFormat != PIX_FMT_ARGB &&
+ dstFormat != PIX_FMT_BGRA &&
+ dstFormat != PIX_FMT_ABGR &&
+ dstFormat != PIX_FMT_RGB24 &&
+ dstFormat != PIX_FMT_BGR24) {
+ av_log(c, AV_LOG_ERROR,
+ "full chroma interpolation for destination format '%s' not yet implemented\n",
+ sws_format_name(dstFormat));
+ flags &= ~SWS_FULL_CHR_H_INT;
+ c->flags = flags;
+ }
if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
// drop some chroma lines if the user wants it