[FFmpeg-devel] [PATCH] mpegvideo_enc: disable optimized huffman coding with AMV or slice threads

[Rostislav Pehlivanov]

Doesn't work yet with slice threading and won't work with AMV.
---
 libavcodec/mpegvideo_enc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 71a858fc72..db241c82f0 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -399,6 +399,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
         return AVERROR(EINVAL);
     }
 
+    if (avctx->codec_id == AV_CODEC_ID_AMV || (avctx->active_thread_type & FF_THREAD_SLICE))
+        s->huffman = 0;
+
     if (s->intra_dc_precision > (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO ? 3 : 0)) {
         av_log(avctx, AV_LOG_ERROR, "intra dc precision too large\n");
         return AVERROR(EINVAL);
-- 
2.12.2.715.g7642488e1d