[FFmpeg-cvslog] avcodec/noise_bsf: Check for wrapped frames

[Michael Niedermayer]

ffmpeg | branch: release/5.1 | Michael Niedermayer <michael at niedermayer.cc> | Sun Jun  4 19:59:40 2023 +0200| [2cb93e863fac9ad32ae5901186b59eb23c047e64] | committer: Michael Niedermayer

avcodec/noise_bsf: Check for wrapped frames

Wrapped frames contain pointers so they need specific code to
noise them, the generic code would lead to segfaults

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 0889ebc577749ee6abc620bc9030d2002487935f)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2cb93e863fac9ad32ae5901186b59eb23c047e64
---

 libavcodec/noise_bsf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavcodec/noise_bsf.c b/libavcodec/noise_bsf.c
index 168f3aa373..7bdaa3c1db 100644
--- a/libavcodec/noise_bsf.c
+++ b/libavcodec/noise_bsf.c
@@ -86,6 +86,12 @@ static int noise_init(AVBSFContext *ctx)
             return AVERROR(ENOMEM);
     }
 
+    if (ctx->par_in->codec_id == AV_CODEC_ID_WRAPPED_AVFRAME &&
+        strcmp(s->amount_str, "0")) {
+        av_log(ctx, AV_LOG_ERROR, "Wrapped AVFrame noising is unsupported\n");
+        return AVERROR_PATCHWELCOME;
+    }
+
     ret = av_expr_parse(&s->amount_pexpr, s->amount_str,
                         var_names, NULL, NULL, NULL, NULL, 0, ctx);
     if (ret < 0) {