X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fvaapi_vc1.c;h=921ca6391b67b2a0c2da4e80a853478e83cb1efa;hb=c6db2e97dcd246234b958814450d3fd12a5c8c27;hp=74ba7831416de6bada52836b8eee27d9567ac437;hpb=f790410b6baa4ee53e8a5796e986de0cae78b073;p=ffmpeg

diff --git a/libavcodec/vaapi_vc1.c b/libavcodec/vaapi_vc1.c
index 74ba7831416..921ca6391b6 100644
--- a/libavcodec/vaapi_vc1.c
+++ b/libavcodec/vaapi_vc1.c
@@ -138,8 +138,9 @@ static int vc1_get_FPTYPE(const VC1Context *v)
 /** Reconstruct bitstream MVMODE (7.1.1.32) */
 static inline VAMvModeVC1 vc1_get_MVMODE(const VC1Context *v)
 {
-    if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
-        (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type))
+    if ((v->fcm == PROGRESSIVE || v->fcm == ILACE_FIELD) &&
+        ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
+         (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type)))
         return get_VAMvModeVC1(v->mv_mode);
     return 0;
 }
@@ -147,7 +148,8 @@ static inline VAMvModeVC1 vc1_get_MVMODE(const VC1Context *v)
 /** Reconstruct bitstream MVMODE2 (7.1.1.33) */
 static inline VAMvModeVC1 vc1_get_MVMODE2(const VC1Context *v)
 {
-    if ((v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
+    if ((v->fcm == PROGRESSIVE || v->fcm == ILACE_FIELD) &&
+        (v->s.pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) &&
         v->mv_mode == MV_PMODE_INTENSITY_COMP)
         return get_VAMvModeVC1(v->mv_mode2);
     return 0;
@@ -465,6 +467,7 @@ static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer,
     const MpegEncContext *s = &v->s;
     VAAPIDecodePicture *pic = s->current_picture_ptr->hwaccel_picture_private;
     VASliceParameterBufferVC1 slice_param;
+    int mb_height;
     int err;
 
     /* Current bit buffer is beyond any marker for VC-1, so skip it */
@@ -473,12 +476,17 @@ static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer,
         size -= 4;
     }
 
+    if (v->fcm == ILACE_FIELD)
+        mb_height = avctx->coded_height + 31 >> 5;
+    else
+        mb_height = avctx->coded_height + 15 >> 4;
+
     slice_param = (VASliceParameterBufferVC1) {
         .slice_data_size         = size,
         .slice_data_offset       = 0,
         .slice_data_flag         = VA_SLICE_DATA_FLAG_ALL,
         .macroblock_offset       = get_bits_count(&s->gb),
-        .slice_vertical_position = s->mb_y,
+        .slice_vertical_position = s->mb_y % mb_height,
     };
 
     err = ff_vaapi_decode_make_slice_buffer(avctx, pic,