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path: root/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
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Diffstat (limited to 'gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c')
-rw-r--r--gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c b/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
index ae788493..c69761f1 100644
--- a/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
+++ b/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
@@ -883,7 +883,7 @@ decode_slice(
GstBitReader br;
gint mb_x, mb_y, mb_inc;
guint macroblock_offset;
- guint8 slice_vertical_position_extension;
+ guint8 slice_vertical_position_extension = 0;
guint8 quantiser_scale_code;
guint8 intra_slice = 0;
guint8 extra_bit_slice, junk8;
@@ -922,7 +922,7 @@ decode_slice(
}
macroblock_offset = gst_bit_reader_get_pos(&br);
- mb_y = slice_no;
+ mb_y = ((guint)slice_vertical_position_extension << 7) + slice_no;
mb_x = -1;
do {
if (!decode_vlc(&br, &mb_inc, mpeg2_mbaddr_vlc_table,