From 6c83bcadbbdbec8e2b8cf156de3e8bcc4e6c880a Mon Sep 17 00:00:00 2001
From: Zhao Zhili <zhilizhao@tencent.com>
Date: Mon, 13 Oct 2025 20:15:53 +0800
Subject: [PATCH] avcodec/hevc: add ff_hevc_compute_poc2 which don't depend on
 HEVCSPS directly

So it can be used in other places like bsf.
---
 libavcodec/hevc/ps.c | 4 ++--
 libavcodec/hevc/ps.h | 7 ++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/libavcodec/hevc/ps.c b/libavcodec/hevc/ps.c
index 1b7c275ba4..7b9dbbcff8 100644
--- a/libavcodec/hevc/ps.c
+++ b/libavcodec/hevc/ps.c
@@ -2443,9 +2443,9 @@ void ff_hevc_ps_uninit(HEVCParamSets *ps)
         av_refstruct_unref(&ps->pps_list[i]);
 }
 
-int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
+int ff_hevc_compute_poc2(unsigned log2_max_poc_lsb, int pocTid0, int poc_lsb, int nal_unit_type)
 {
-    int max_poc_lsb  = 1 << sps->log2_max_poc_lsb;
+    int max_poc_lsb  = 1 << log2_max_poc_lsb;
     int prev_poc_lsb = pocTid0 % max_poc_lsb;
     int prev_poc_msb = pocTid0 - prev_poc_lsb;
     int poc_msb;
diff --git a/libavcodec/hevc/ps.h b/libavcodec/hevc/ps.h
index 25475b5593..d620887b8e 100644
--- a/libavcodec/hevc/ps.h
+++ b/libavcodec/hevc/ps.h
@@ -546,6 +546,11 @@ int ff_hevc_encode_nal_vps(HEVCVPS *vps, unsigned int id,
 /**
  * Compute POC of the current frame and return it.
  */
-int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type);
+int ff_hevc_compute_poc2(unsigned log2_max_poc_lsb, int pocTid0, int poc_lsb, int nal_unit_type);
+
+static inline int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
+{
+    return ff_hevc_compute_poc2(sps->log2_max_poc_lsb, pocTid0, poc_lsb, nal_unit_type);
+}
 
 #endif /* AVCODEC_HEVC_PS_H */