avcodec/dnxhd_parser: remove unneeded code

[ffmpeg] / libavcodec / dfa.c

diff --git a/libavcodec/dfa.c b/libavcodec/dfa.c
index 536040d65c9b8aae2db593724520b45100eff0cc..c6106b9397d796b557aafc667ba6a61126f92d08 100644 (file)
--- a/libavcodec/dfa.c
+++ b/libavcodec/dfa.c
@@ -41,7 +41,7 @@ static av_cold int dfa_decode_init(AVCodecContext *avctx)
 
     avctx->pix_fmt = AV_PIX_FMT_PAL8;
 
-    if (!avctx->width || !avctx->height)
+    if (!avctx->width || !avctx->height || FFMAX(avctx->width, avctx->height) >= (1<<16))
         return AVERROR_INVALIDDATA;
 
     av_assert0(av_image_check_size(avctx->width, avctx->height, 0, avctx) >= 0);
@@ -355,6 +355,8 @@ static int dfa_decode_frame(AVCodecContext *avctx,
 
     bytestream2_init(&gb, avpkt->data, avpkt->size);
     while (bytestream2_get_bytes_left(&gb) > 0) {
+        if (bytestream2_get_bytes_left(&gb) < 12)
+            return AVERROR_INVALIDDATA;
         bytestream2_skip(&gb, 4);
         chunk_size = bytestream2_get_le32(&gb);
         chunk_type = bytestream2_get_le32(&gb);