H264: reorder buffer size

No need to change it when threads are less than the buffer. Change to max reorder buffer size isn't always appropriate (e.g., source with buffer size of 1).
HomeOfAviSynthPlusEvolution · Mar 23, 2024 · 3bbe176 · 3bbe176
1 parent 256437e
commit 3bbe176
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/common/decode.c b/common/decode.c
@@ -146,9 +146,9 @@ int open_decoder
           && thread_count != 1
           && av_cpu_count() > 1 )
         c->thread_count = 2;
-    if( codec->id == AV_CODEC_ID_H264
-     && c->has_b_frames < 8 )
-        c->has_b_frames = 8;
+    if (codec->id == AV_CODEC_ID_H264
+        && (!thread_count) ? av_cpu_count() : thread_count > c->has_b_frames)
+        c->has_b_frames = FFMIN((c->has_b_frames + 1) << 2, 16);
     if( codec->wrapper_name
      && !strcmp( codec->wrapper_name, "cuvid" ) )
         c->has_b_frames = 16; /* the maximum decoder latency for AVC and HEVC frame */