commit e14debb2c2adedb16aa6b06d6d7b1e5e32c472fe
Author: Aman Gupta <[email protected]>
Date:   Wed Jul 18 11:22:20 2018 -0700

    avcodec: fix parsing of AVCodec definition with multiple bitstream filters

    Off-by-one in the parser would throw errors when multiple bsfs were used.

    > A non-existing bitstream filter  requested by a decoder. This is a bug, please report it.

    Signed-off-by: Aman Gupta <[email protected]>

diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index 6a3a4df179..91d809d742 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -197,6 +197,9 @@ static int bsfs_init(AVCodecContext *avctx)
         const AVBitStreamFilter *filter;
         char *bsf;

+        if (*bsfs_str == ',')
+            bsfs_str++;
+
         bsf = av_get_token(&bsfs_str, ",");
         if (!bsf) {
             ret = AVERROR(ENOMEM);