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Code Issues Releases Activity

avcodec/msmpeg4dec: Don't initialize unused RL VLCs

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For the RLTables ff_rl_table[0..2] only the very first VLC is only ever
used, so it makes no sense to create 32 of them. This saves 285200B from
the .bss segment; this amount of memory is actually saved when this
decoder is used.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt
2020-12-08 23:08:56 +01:00
parent b9071a70fc
commit b0c4748770
1 changed files with 3 additions and 3 deletions
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6
libavcodec/msmpeg4dec.c
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@@ -317,9 +317,9 @@ av_cold int ff_msmpeg4_decode_init(AVCodecContext *avctx)
for(i=0;i<NB_RL_TABLES;i++) {
ff_rl_init(&ff_rl_table[i], ff_static_rl_table_store[i]);
}
INIT_VLC_RL(ff_rl_table[0], 642);
INIT_VLC_RL(ff_rl_table[1], 1104);
INIT_VLC_RL(ff_rl_table[2], 554);
INIT_FIRST_VLC_RL(ff_rl_table[0], 642);
INIT_FIRST_VLC_RL(ff_rl_table[1], 1104);
INIT_FIRST_VLC_RL(ff_rl_table[2], 554);
INIT_VLC_RL(ff_rl_table[3], 940);
INIT_VLC_RL(ff_rl_table[4], 962);
INIT_VLC_RL(ff_rl_table[5], 554);