[FFmpeg-devel] [PATCH] lavc/libaomenc: Add a maximum constraint of 64 encoder threads.

[Jun Zhao]

fixed the error in Intel(R) Xeon(R) Gold 6152 CPU like:
[libaom-av1 @ 0x469f340] Failed to initialize encoder: Invalid parameter
[libaom-av1 @ 0x469f340]   Additional information: g_threads out of range [..MAX_NUM_THREADS]

Signed-off-by: Jun Zhao <mypopydev at gmail.com>
---
 libavcodec/libaomenc.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavcodec/libaomenc.c b/libavcodec/libaomenc.c
index cb31c55..ccb0cf9 100644
--- a/libavcodec/libaomenc.c
+++ b/libavcodec/libaomenc.c
@@ -504,7 +504,8 @@ static av_cold int aom_init(AVCodecContext *avctx,
     enccfg.g_h            = avctx->height;
     enccfg.g_timebase.num = avctx->time_base.num;
     enccfg.g_timebase.den = avctx->time_base.den;
-    enccfg.g_threads      = avctx->thread_count ? avctx->thread_count : av_cpu_count();
+    enccfg.g_threads      =
+	FFMIN(avctx->thread_count ? avctx->thread_count : av_cpu_count(), 64);
 
     if (ctx->lag_in_frames >= 0)
         enccfg.g_lag_in_frames = ctx->lag_in_frames;
-- 
1.7.1