@@ -2,6 +2,7 @@ Entries are sorted chronologically from oldest to youngest within each release,

 releases are sorted from youngest to oldest.

 version 3.2.1:

+- avcodec/aac_adtstoasc_bsf: validate and forward extradata if the stream is already ASC

 - mss2: only use error correction for matching block counts

 - softfloat: decrease MIN_EXP to cover full float range

 - libopusdec: default to stereo for invalid number of channels

@@ -136,8 +136,16 @@ fail:

 static int aac_adtstoasc_init(AVBSFContext *ctx)

 {

-    av_freep(&ctx->par_out->extradata);

-    ctx->par_out->extradata_size = 0;

+    /* Validate the extradata if the stream is already MPEG-4 AudioSpecificConfig */

+    if (ctx->par_in->extradata) {

+        MPEG4AudioConfig mp4ac;

+        int ret = avpriv_mpeg4audio_get_config(&mp4ac, ctx->par_in->extradata,

+                                               ctx->par_in->extradata_size * 8, 1);

+        if (ret < 0) {

+            av_log(ctx, AV_LOG_ERROR, "Error parsing AudioSpecificConfig extradata!\n");

+            return ret;

+        }

+    }

     return 0;

 }