diff options
-rw-r--r-- | libavcodec/vp8.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libavcodec/vp8.c b/libavcodec/vp8.c index 83c60adeb0..7972775a1c 100644 --- a/libavcodec/vp8.c +++ b/libavcodec/vp8.c @@ -2665,7 +2665,11 @@ int vp78_decode_frame(AVCodecContext *avctx, AVFrame *rframe, int *got_frame, if (ret < 0) goto err; - if (s->actually_webp) { + if (!is_vp7 && s->actually_webp) { + // VP8 in WebP is supposed to be intra-only. Enforce this here + // to ensure that output is reproducible with frame-threading. + if (!s->keyframe) + return AVERROR_INVALIDDATA; // avctx->pix_fmt already set in caller. } else if (!is_vp7 && s->pix_fmt == AV_PIX_FMT_NONE) { s->pix_fmt = get_pixel_format(s); |