[FFmpeg-devel] [PATCH] lavc/videotoolboxdec: fix crop handling when multithreaded

[Rodger Combs]

This was partially fixed by 233cd89, but it made changes to AVFrame fields
from within end_frame, which doesn't work consistently when multithreading
is enabled. This is what the post_process function is for.
---
 libavcodec/videotoolbox.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/libavcodec/videotoolbox.c b/libavcodec/videotoolbox.c
index c718e82cc5..7948d21bcc 100644
--- a/libavcodec/videotoolbox.c
+++ b/libavcodec/videotoolbox.c
@@ -91,6 +91,11 @@ static int videotoolbox_postproc_frame(void *avctx, AVFrame *frame)
         return AVERROR_EXTERNAL;
     }
 
+    frame->crop_right = 0;
+    frame->crop_left = 0;
+    frame->crop_top = 0;
+    frame->crop_bottom = 0;
+
     frame->data[3] = (uint8_t*)ref->pixbuf;
 
     if (ref->hw_frames_ctx) {
@@ -898,11 +903,6 @@ static int videotoolbox_common_end_frame(AVCodecContext *avctx, AVFrame *frame)
     AVVideotoolboxContext *videotoolbox = videotoolbox_get_context(avctx);
     VTContext *vtctx = avctx->internal->hwaccel_priv_data;
 
-    frame->crop_right = 0;
-    frame->crop_left = 0;
-    frame->crop_top = 0;
-    frame->crop_bottom = 0;
-
     if (vtctx->reconfig_needed == true) {
         vtctx->reconfig_needed = false;
         av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox decoder needs reconfig, restarting..\n");
-- 
2.21.0