https://bugs.gentoo.org/901003
https://github.com/FreeRDP/FreeRDP/issues/8686
https://github.com/FreeRDP/FreeRDP/commit/7f55c97d60453738323e0ecafe6d357019528227

From 7f55c97d60453738323e0ecafe6d357019528227 Mon Sep 17 00:00:00 2001
From: akallabeth <akallabeth@posteo.net>
Date: Tue, 14 Feb 2023 07:48:54 +0100
Subject: [PATCH] Fixed #8686: Update h264 to use new FFMPEG API

--- a/channels/tsmf/client/ffmpeg/tsmf_ffmpeg.c
+++ b/channels/tsmf/client/ffmpeg/tsmf_ffmpeg.c
@@ -235,8 +235,10 @@ static BOOL tsmf_ffmpeg_init_stream(ITSMFDecoder* decoder, const TS_AM_MEDIA_TYP
 		}
 	}
 
+#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(59, 18, 100)
 	if (mdecoder->codec->capabilities & AV_CODEC_CAP_TRUNCATED)
 		mdecoder->codec_context->flags |= AV_CODEC_FLAG_TRUNCATED;
+#endif
 
 	return TRUE;
 }
--- a/libfreerdp/codec/h264_ffmpeg.c
+++ b/libfreerdp/codec/h264_ffmpeg.c
@@ -529,10 +529,12 @@ static BOOL libavcodec_init(H264_CONTEXT* h264)
 			goto EXCEPTION;
 		}
 
+#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(59, 18, 100)
 		if (sys->codecDecoder->capabilities & AV_CODEC_CAP_TRUNCATED)
 		{
 			sys->codecDecoderContext->flags |= AV_CODEC_FLAG_TRUNCATED;
 		}
+#endif
 
 #ifdef WITH_VAAPI