tiffenc: Check av_pix_fmt_desc_get() return value

9f732e4c · Vittorio Giovara · d8f3b0fb · 9f732e4c
Commit 9f732e4c authored Jun 27, 2016 by Vittorio Giovara
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tiffenc.c libavcodec/tiffenc.c +3 -1

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--- a/libavcodec/tiffenc.c
+++ b/libavcodec/tiffenc.c
@@ -255,6 +255,8 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    case AV_PIX_FMT_GRAY8:
    case AV_PIX_FMT_PAL8:
        pfd = av_pix_fmt_desc_get(avctx->pix_fmt);
+        if (!pfd)
+            return AVERROR_BUG;
        s->bpp = av_get_bits_per_pixel(pfd);
        if (pfd->flags & AV_PIX_FMT_FLAG_PAL)
            s->photometric_interpretation = TIFF_PHOTOMETRIC_PALETTE;