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mpeg2: fix decoding of 4K videos.
Account for slice_vertical_position_extension when vertical_size > 2800.
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564ca5d221
commit
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1 changed files with 3 additions and 2 deletions
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@ -1127,7 +1127,7 @@ parse_slice(GstVaapiDecoderMpeg2 *decoder,
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GstMpegVideoSliceHdr *slice_hdr;
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GstBitReader br;
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gint mb_x, mb_y, mb_inc;
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guint8 slice_vertical_position_extension;
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guint8 slice_vertical_position_extension = 0;
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guint8 extra_bit_slice, junk8;
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priv->state &= (GST_MPEG_VIDEO_STATE_GOT_SEQ_HDR|
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@ -1164,7 +1164,8 @@ parse_slice(GstVaapiDecoderMpeg2 *decoder,
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}
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slice_hdr->header_size = 32 + gst_bit_reader_get_pos(&br);
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mb_y = packet->type - GST_MPEG_VIDEO_PACKET_SLICE_MIN;
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mb_y = ((guint)slice_vertical_position_extension << 7) +
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packet->type - GST_MPEG_VIDEO_PACKET_SLICE_MIN;
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mb_x = -1;
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do {
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if (!decode_vlc(&br, &mb_inc, mpeg2_mbaddr_vlc_table,
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