From 1fdbca85aaea513c9cc6c14d347f76543346d3da Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Wed, 29 Jul 2026 21:45:53 -0300
Subject: [PATCH] avcodec/bsf/truehd_core: clear profile value on init()

The output stream no longer has Atmos metadata, so the
AV_PROFILE_TRUEHD_ATMOS profile, if it was set, is no longer valid.

Fixes issue #23195.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 86940d45aff7d59810794df3ab2b39b7b83b478c)
---
 libavcodec/bsf/truehd_core.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libavcodec/bsf/truehd_core.c b/libavcodec/bsf/truehd_core.c
index ee1060b021..8179bfbf67 100644
--- a/libavcodec/bsf/truehd_core.c
+++ b/libavcodec/bsf/truehd_core.c
@@ -34,6 +34,13 @@ typedef struct TrueHDCoreContext {
     MLPHeaderInfo hdr;
 } TrueHDCoreContext;
 
+static int truehd_core_init(AVBSFContext *ctx)
+{
+    ctx->par_out->profile = AV_PROFILE_UNKNOWN;
+
+    return 0;
+}
+
 static int truehd_core_filter(AVBSFContext *ctx, AVPacket *pkt)
 {
     TrueHDCoreContext *s = ctx->priv_data;
@@ -177,6 +184,7 @@ const FFBitStreamFilter ff_truehd_core_bsf = {
     .p.name         = "truehd_core",
     .p.codec_ids    = codec_ids,
     .priv_data_size = sizeof(TrueHDCoreContext),
+    .init           = truehd_core_init,
     .filter         = truehd_core_filter,
     .flush          = truehd_core_flush,
 };