diff '--color=auto' -Naur a/vod/filters/audio_decoder.c b/vod/filters/audio_decoder.c
--- a/vod/filters/audio_decoder.c	2025-11-01 03:45:56.847237653 +0000
+++ b/vod/filters/audio_decoder.c	2025-11-01 03:48:13.536886918 +0000
@@ -159,7 +159,7 @@
 void
 audio_decoder_free(audio_decoder_state_t* state)
 {
-	avcodec_close(state->decoder);
+	avcodec_free_context(&state->decoder);
 	av_free(state->decoder);
 	state->decoder = NULL;
 	av_frame_free(&state->decoded_frame);
diff '--color=auto' -Naur a/vod/filters/audio_encoder.c b/vod/filters/audio_encoder.c
--- a/vod/filters/audio_encoder.c	2025-11-01 03:45:56.847422131 +0000
+++ b/vod/filters/audio_encoder.c	2025-11-01 03:48:27.615223710 +0000
@@ -156,7 +156,7 @@
 		return;
 	}
 	
-	avcodec_close(state->encoder);
+	avcodec_free_context(&state->encoder);
 	av_free(state->encoder);
 }
 
diff '--color=auto' -Naur a/vod/thumb/thumb_grabber.c b/vod/thumb/thumb_grabber.c
--- a/vod/thumb/thumb_grabber.c	2025-11-01 03:45:56.847619626 +0000
+++ b/vod/thumb/thumb_grabber.c	2025-11-01 03:47:58.694348026 +0000
@@ -107,9 +107,9 @@
 		av_freep(state->resize_buffer);
 	}
 	av_frame_free(&state->decoded_frame);
-	avcodec_close(state->encoder);
+	avcodec_free_context(&state->encoder);
 	av_free(state->encoder);
-	avcodec_close(state->decoder);
+	avcodec_free_context(&state->decoder);
 	av_free(state->decoder);
 }