[FFmpeg-devel] [PATCH] pngdec: set correct range

[wm4]

AV_PIX_FMT_GRAY8/16 are considered YUV formats, and the color_range is
not set - so the API user will have to assume limitted range. (Unless
the API user adds a special-case for the PNG decoder.)

Just export the correct range - full range.
---
 libavcodec/pngdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 1f8a77b..72d75fb 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -633,6 +633,8 @@ static int decode_idat_chunk(AVCodecContext *avctx, PNGDecContext *s,
             return AVERROR_INVALIDDATA;
         }
 
+        avctx->color_range = AVCOL_RANGE_JPEG;
+
         if ((ret = ff_thread_get_buffer(avctx, &s->picture, AV_GET_BUFFER_FLAG_REF)) < 0)
             return ret;
         ff_thread_finish_setup(avctx);
-- 
2.1.4