[FFmpeg-cvslog] avcodec/dnxhdenc: check that qmax is within the supported range

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Jan 17 20:58:43 2014 +0100| [19df5dcb4734d699da7177d5cfc8dc1bdcbf91c1] | committer: Michael Niedermayer

avcodec/dnxhdenc: check that qmax is within the supported range

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=19df5dcb4734d699da7177d5cfc8dc1bdcbf91c1
---

 libavcodec/dnxhdenc.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index b16c7ed..ab2b7c6 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -341,6 +341,11 @@ static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
         return -1;
     }
 
+    if (avctx->qmax <= 1) {
+        av_log(avctx, AV_LOG_ERROR, "qmax must be at least 2\n");
+        return AVERROR(EINVAL);
+    }
+
     ctx->thread[0] = ctx;
     for (i = 1; i < avctx->thread_count; i++) {
         ctx->thread[i] =  av_malloc(sizeof(DNXHDEncContext));