From 61f412eea3fbcb1e2a8625796760c0e24fa3fb83 Mon Sep 17 00:00:00 2001
From: Lynne <dev@lynne.ee>
Date: Tue, 17 Jan 2023 05:01:45 +0100
Subject: [PATCH 27/92] h264dec: add hwaccel_params_buf

---
 libavcodec/h264_slice.c | 4 ++++
 libavcodec/h264dec.c    | 4 ++++
 libavcodec/h264dec.h    | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
index 579f074c42..19c10915d1 100644
--- a/libavcodec/h264_slice.c
+++ b/libavcodec/h264_slice.c
@@ -347,6 +347,10 @@ int ff_h264_update_thread_context(AVCodecContext *dst,
             return ret;
     }
 
+    ret = av_buffer_replace(&h->hwaccel_params_buf, h1->hwaccel_params_buf);
+    if (ret < 0)
+        return ret;
+
     ret = av_buffer_replace(&h->ps.pps_ref, h1->ps.pps_ref);
     if (ret < 0)
         return ret;
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 0aee724c0d..6559593195 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -341,6 +341,7 @@ static av_cold int h264_decode_end(AVCodecContext *avctx)
     H264Context *h = avctx->priv_data;
     int i;
 
+    av_buffer_unref(&h->hwaccel_params_buf);
     ff_h264_remove_all_refs(h);
     ff_h264_free_tables(h);
 
@@ -470,6 +471,7 @@ static void h264_decode_flush(AVCodecContext *avctx)
 
     ff_h264_flush_change(h);
     ff_h264_sei_uninit(&h->sei);
+    av_buffer_unref(&h->hwaccel_params_buf);
 
     for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
         ff_h264_unref_picture(h, &h->DPB[i]);
@@ -669,6 +671,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
             avpriv_request_sample(avctx, "data partitioning");
             break;
         case H264_NAL_SEI:
+            av_buffer_unref(&h->hwaccel_params_buf);
             if (h->setup_finished) {
                 avpriv_request_sample(avctx, "Late SEI");
                 break;
@@ -682,6 +685,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
             break;
         case H264_NAL_SPS: {
             GetBitContext tmp_gb = nal->gb;
+            av_buffer_unref(&h->hwaccel_params_buf);
             if (avctx->hwaccel && avctx->hwaccel->decode_params) {
                 ret = avctx->hwaccel->decode_params(avctx,
                                                     nal->type,
diff --git a/libavcodec/h264dec.h b/libavcodec/h264dec.h
index 9a1ec1bace..d7352c15d1 100644
--- a/libavcodec/h264dec.h
+++ b/libavcodec/h264dec.h
@@ -341,6 +341,8 @@ typedef struct H264Context {
     H264Picture cur_pic;
     H264Picture last_pic_for_ec;
 
+    AVBufferRef *hwaccel_params_buf;
+
     H264SliceContext *slice_ctx;
     int            nb_slice_ctx;
     int            nb_slice_ctx_queued;
-- 
2.39.2