vaapi_encode: Move block size calculation after entrypoint selection

The block size can be dependent on the profile and entrypoint selected.
It defaults to 16x16, with codecs able to override this choice with their
own function.

Signed-off-by: Fei Wang <fei.w.wang@intel.com>

1 files changed, 26 insertions, 6 deletions

diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c
index 76d67237d2..3fa1336bb0 100644
--- a/libavcodec/vaapi_encode_h265.c
+++ b/libavcodec/vaapi_encode_h265.c
@@ -55,6 +55,10 @@ typedef struct VAAPIEncodeH265Picture {
 typedef struct VAAPIEncodeH265Context {
     VAAPIEncodeContext common;
 
+    // Encoder features.
+    uint32_t ctu_size;
+    uint32_t min_cb_size;
+
     // User options.
     int qp;
     int aud;
@@ -1091,6 +1095,27 @@ static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
     return 0;
 }
 
+static av_cold int vaapi_encode_h265_get_encoder_caps(AVCodecContext *avctx)
+{
+    VAAPIEncodeContext      *ctx = avctx->priv_data;
+    VAAPIEncodeH265Context *priv = avctx->priv_data;
+
+    if (!priv->ctu_size) {
+        priv->ctu_size     = 32;
+        priv->min_cb_size  = 16;
+    }
+    av_log(avctx, AV_LOG_VERBOSE, "Using CTU size %dx%d, "
+           "min CB size %dx%d.\n", priv->ctu_size, priv->ctu_size,
+           priv->min_cb_size, priv->min_cb_size);
+
+    ctx->surface_width  = FFALIGN(avctx->width,  priv->min_cb_size);
+    ctx->surface_height = FFALIGN(avctx->height, priv->min_cb_size);
+
+    ctx->slice_block_width = ctx->slice_block_height = priv->ctu_size;
+
+    return 0;
+}
+
 static av_cold int vaapi_encode_h265_configure(AVCodecContext *avctx)
 {
     VAAPIEncodeContext      *ctx = avctx->priv_data;
@@ -1160,6 +1185,7 @@ static const VAAPIEncodeType vaapi_encode_type_h265 = {
 
     .default_quality       = 25,
 
+    .get_encoder_caps      = &vaapi_encode_h265_get_encoder_caps,
     .configure             = &vaapi_encode_h265_configure,
 
     .picture_priv_data_size = sizeof(VAAPIEncodeH265Picture),
@@ -1205,12 +1231,6 @@ static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
         VA_ENC_PACKED_HEADER_SLICE    | // Slice headers.
         VA_ENC_PACKED_HEADER_MISC;      // SEI
 
-    ctx->surface_width  = FFALIGN(avctx->width,  16);
-    ctx->surface_height = FFALIGN(avctx->height, 16);
-
-    // CTU size is currently hard-coded to 32.
-    ctx->slice_block_width = ctx->slice_block_height = 32;
-
     if (priv->qp > 0)
         ctx->explicit_qp = priv->qp;