png: support reading gray+alpha at 16 bits

e64f0bf2 · Vittorio Giovara · 2257165b · e64f0bf2
Commit e64f0bf2 authored Jul 20, 2014 by Vittorio Giovara
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pngdec.c libavcodec/pngdec.c +3 -0

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--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -500,6 +500,9 @@ static int decode_frame(AVCodecContext *avctx,
                } else if (s->bit_depth == 8 &&
                           s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
                    avctx->pix_fmt = AV_PIX_FMT_YA8;
+                } else if (s->bit_depth == 16 &&
+                           s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
+                    avctx->pix_fmt = AV_PIX_FMT_YA16BE;
                } else {
                    goto fail;
                }