From 7692bd59621816fbbdd93c563a9851bced41512e Mon Sep 17 00:00:00 2001
From: Cosmin Stejerean <cosmin@cosmin.at>
Date: Fri, 23 Feb 2024 23:21:39 +0000
Subject: [PATCH 6/6] avcodec/libsvtav1: send the EOS signal without a one
 frame delay to allow for the library to operate in a low-delay mode

Co-authored-by: Amir Naghdinezhad <amir.naghdinezhad@intel.com>
Signed-off-by: Cosmin Stejerean <cosmin@cosmin.at>
Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavcodec/libsvtav1.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libavcodec/libsvtav1.c b/libavcodec/libsvtav1.c
index 568e0c0f05..07c9ef95d1 100644
--- a/libavcodec/libsvtav1.c
+++ b/libavcodec/libsvtav1.c
@@ -533,6 +533,14 @@ static int eb_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
     if (svt_ret == EB_NoErrorEmptyQueue)
         return AVERROR(EAGAIN);
 
+#if SVT_AV1_CHECK_VERSION(2, 0, 0)
+    if (headerPtr->flags & EB_BUFFERFLAG_EOS) {
+         svt_enc->eos_flag = EOS_RECEIVED;
+         svt_av1_enc_release_out_buffer(&headerPtr);
+         return AVERROR_EOF;
+    }
+#endif
+
     ref = get_output_ref(avctx, svt_enc, headerPtr->n_filled_len);
     if (!ref) {
         av_log(avctx, AV_LOG_ERROR, "Failed to allocate output packet.\n");
@@ -567,8 +575,10 @@ static int eb_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
     if (headerPtr->pic_type == EB_AV1_NON_REF_PICTURE)
         pkt->flags |= AV_PKT_FLAG_DISPOSABLE;
 
+#if !(SVT_AV1_CHECK_VERSION(2, 0, 0))
     if (headerPtr->flags & EB_BUFFERFLAG_EOS)
         svt_enc->eos_flag = EOS_RECEIVED;
+#endif
 
     ff_side_data_set_encoder_stats(pkt, headerPtr->qp * FF_QP2LAMBDA, NULL, 0, pict_type);
 
-- 
2.44.0

