[FFmpeg-devel] [PATCH] libavcodec/qsvenc: Add dynamic setting support of low_delay_brc to av1_qsv

[wenbin.chen at intel.com]

From: Wenbin Chen <wenbin.chen at intel.com>

Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>
---
 doc/encoders.texi   | 2 +-
 libavcodec/qsvenc.c | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/doc/encoders.texi b/doc/encoders.texi
index b02737b9df..e9b34010ed 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -3344,7 +3344,7 @@ Supported in h264_qsv.
 Change these value to reset qsv codec's max/min qp configuration.
 
 @item @var{low_delay_brc}
-Supported in h264_qsv and hevc_qsv.
+Supported in h264_qsv, hevc_qsv and av1_qsv.
 Change this value to reset qsv codec's low_delay_brc configuration.
 
 @item @var{framerate}
diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
index 3607859cb8..c975302b4f 100644
--- a/libavcodec/qsvenc.c
+++ b/libavcodec/qsvenc.c
@@ -1127,6 +1127,7 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q)
         } else if (avctx->codec_id == AV_CODEC_ID_AV1) {
             if (q->low_delay_brc >= 0)
                 q->extco3.LowDelayBRC = q->low_delay_brc ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF;
+            q->old_low_delay_brc = q->low_delay_brc;
         }
 
         if (avctx->codec_id == AV_CODEC_ID_HEVC) {
@@ -2213,7 +2214,9 @@ static int update_low_delay_brc(AVCodecContext *avctx, QSVEncContext *q)
 {
     int updated = 0;
 
-    if (avctx->codec_id != AV_CODEC_ID_H264 && avctx->codec_id != AV_CODEC_ID_HEVC)
+    if (avctx->codec_id != AV_CODEC_ID_H264 &&
+        avctx->codec_id != AV_CODEC_ID_HEVC &&
+        avctx->codec_id != AV_CODEC_ID_AV1)
         return 0;
 
     UPDATE_PARAM(q->old_low_delay_brc, q->low_delay_brc);
-- 
2.34.1