[FFmpeg-cvslog] Merge commit 'a14a12ca137bf1526452b97bedfc9f7b301d4e04'

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Sat Nov 11 00:49:43 2017 -0300| [e6d70494ce03760c6700c50380f4455c41919661] | committer: James Almer

Merge commit 'a14a12ca137bf1526452b97bedfc9f7b301d4e04'

* commit 'a14a12ca137bf1526452b97bedfc9f7b301d4e04':
  vaapi_h265: Reduce the amount of padding in the stream

Merged-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e6d70494ce03760c6700c50380f4455c41919661
---

 libavcodec/vaapi_encode_h265.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c
index 3ae92a7a09..58b30b087f 100644
--- a/libavcodec/vaapi_encode_h265.c
+++ b/libavcodec/vaapi_encode_h265.c
@@ -815,8 +815,11 @@ static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)
     if (err < 0)
         return err;
 
-    priv->ctu_width     = FFALIGN(ctx->surface_width,  32) / 32;
-    priv->ctu_height    = FFALIGN(ctx->surface_height, 32) / 32;
+    // This is an Intel driver constraint.  Despite MinCbSizeY being 8,
+    // we are still required to encode at 16-pixel alignment and then
+    // crop back (so 1080 lines is still encoded as 1088 + cropping).
+    priv->ctu_width     = FFALIGN(ctx->surface_width,  16) / 16;
+    priv->ctu_height    = FFALIGN(ctx->surface_height, 16) / 16;
 
     av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Surface %ux%u -> CTU %ux%u.\n",
            avctx->width, avctx->height, ctx->surface_width,


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