[FFmpeg-devel] [PATCH] lavc: Prevent opening of experimental codecs if strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL.

[Michael Niedermayer]

Some of these encoders may produce invalid bitstreams, which should not
be done without the user knowing.
Some of these decoders may be unfinished and may contain security issues.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
 libavcodec/utils.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 77811b0..78bc6e7 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -703,6 +703,13 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, AVCodec *codec, AVD
     if ((ret = av_opt_set_dict(avctx, &tmp)) < 0)
         goto free_and_end;
 
+    if (codec->capabilities & CODEC_CAP_EXPERIMENTAL)
+        if (avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+            av_log(avctx, AV_LOG_ERROR, "Codec is experimental but experimental codecs are not enabled, see -strict -2\n");
+            ret = -1;
+            goto free_and_end;
+        }
+
     //We only call avcodec_set_dimensions() for non h264 codecs so as not to overwrite previously setup dimensions
     if(!( avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && avctx->codec_id == CODEC_ID_H264)){
     if(avctx->coded_width && avctx->coded_height)
-- 
1.7.5.4