From e9bcb08794d2561adf6a6e42d94fe11eb01ee948 Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Thu, 8 Apr 2021 21:01:05 +0200 Subject: [PATCH] avcodec/msmpeg4dec: Avoid duplication of VLC init code Signed-off-by: Andreas Rheinhardt --- libavcodec/msmpeg4dec.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/libavcodec/msmpeg4dec.c b/libavcodec/msmpeg4dec.c index 63f9faa1bb..8fcd5b94cd 100644 --- a/libavcodec/msmpeg4dec.c +++ b/libavcodec/msmpeg4dec.c @@ -356,18 +356,16 @@ av_cold int ff_msmpeg4_decode_init(AVCodecContext *avctx) &ff_v2_mb_type[0][1], 2, 1, &ff_v2_mb_type[0][0], 2, 1, 128); - INIT_VLC_STATIC(&ff_mb_non_intra_vlc[0], MB_NON_INTRA_VLC_BITS, 128, - &ff_wmv2_inter_table[0][0][1], 8, 4, - &ff_wmv2_inter_table[0][0][0], 8, 4, 1636); - INIT_VLC_STATIC(&ff_mb_non_intra_vlc[1], MB_NON_INTRA_VLC_BITS, 128, - &ff_wmv2_inter_table[1][0][1], 8, 4, - &ff_wmv2_inter_table[1][0][0], 8, 4, 2648); - INIT_VLC_STATIC(&ff_mb_non_intra_vlc[2], MB_NON_INTRA_VLC_BITS, 128, - &ff_wmv2_inter_table[2][0][1], 8, 4, - &ff_wmv2_inter_table[2][0][0], 8, 4, 1532); - INIT_VLC_STATIC(&ff_mb_non_intra_vlc[3], MB_NON_INTRA_VLC_BITS, 128, - &ff_wmv2_inter_table[3][0][1], 8, 4, - &ff_wmv2_inter_table[3][0][0], 8, 4, 2488); + for (unsigned i = 0, offset = 0; i < 4; i++) { + static VLC_TYPE vlc_buf[1636 + 2648 + 1532 + 2488][2]; + ff_mb_non_intra_vlc[i].table = &vlc_buf[offset]; + ff_mb_non_intra_vlc[i].table_allocated = FF_ARRAY_ELEMS(vlc_buf) - offset; + init_vlc(&ff_mb_non_intra_vlc[i], MB_NON_INTRA_VLC_BITS, 128, + &ff_wmv2_inter_table[i][0][1], 8, 4, + &ff_wmv2_inter_table[i][0][0], 8, 4, + INIT_VLC_STATIC_OVERLONG); + offset += ff_mb_non_intra_vlc[i].table_size; + } INIT_VLC_STATIC(&ff_msmp4_mb_i_vlc, MB_INTRA_VLC_BITS, 64, &ff_msmp4_mb_i_table[0][1], 4, 2,