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authorMark Thompson <sw@jkqxz.net>2016-04-02 16:48:53 +0100
committerLuca Barbato <lu_zero@gentoo.org>2016-04-02 17:56:49 +0200
commitb3051a460cf02a5b86ff0d1e14abba23ea55ff6d (patch)
treeb5683c99730e3b81b8cf54b26ac815f63a0064b5 /libavcodec/vaapi_h264.c
parent33275a0de05e9bc321f2537a2a67921fab81624f (diff)
vaapi_h264: Fix bit offset of slice data.
Commit ca2f19b9cc37be509d85f05c8f902860475905f8 modified the meaning of H264SliceContext.gb: it is now initialised at the start of the NAL unit header, rather than at the start of the slice header. The VAAPI slice decoder uses the offset after parsing to determine the offset of the slice data in the bitstream, so with the changed meaning we no longer need to add the extra byte to account for the NAL unit header because it is now included directly. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Diffstat (limited to 'libavcodec/vaapi_h264.c')
-rw-r--r--libavcodec/vaapi_h264.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/vaapi_h264.c b/libavcodec/vaapi_h264.c
index 431a428b47..2e2626edc5 100644
--- a/libavcodec/vaapi_h264.c
+++ b/libavcodec/vaapi_h264.c
@@ -328,7 +328,7 @@ static int vaapi_h264_decode_slice(AVCodecContext *avctx,
slice_param = (VASliceParameterBufferH264 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size);
if (!slice_param)
return -1;
- slice_param->slice_data_bit_offset = get_bits_count(&sl->gb) + 8; /* bit buffer started beyond nal_unit_type */
+ slice_param->slice_data_bit_offset = get_bits_count(&sl->gb);
slice_param->first_mb_in_slice = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
slice_param->slice_type = ff_h264_get_slice_type(sl);
slice_param->direct_spatial_mv_pred_flag = sl->slice_type == AV_PICTURE_TYPE_B ? sl->direct_spatial_mv_pred : 0;