From: Andreas Rheinhardt Date: Tue, 8 Dec 2020 22:32:35 +0000 (+0100) Subject: avcodec/mpeg4videodec: Don't initialize unused RL VLCs X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=3e0bd5064d4e2f87a69c6028eb739db5a45d3cb9;p=ffmpeg avcodec/mpeg4videodec: Don't initialize unused RL VLCs The RLTables whose VLC tables are only used for intra blocks only use the very first VLC table; yet all 32 have been initialized. This commit stops this by switching to INIT_FIRST_VLC_RL. This saves 201624B from the .bss segment; in case the decoder is actually used, this translates into less memory used. Signed-off-by: Andreas Rheinhardt --- diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index c88de63f369..3cb72674850 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -3389,9 +3389,9 @@ av_cold void ff_mpeg4videodec_static_init(void) { ff_rl_init(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]); ff_rl_init(&ff_rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]); ff_rl_init(&ff_rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]); - INIT_VLC_RL(ff_mpeg4_rl_intra, 554); + INIT_FIRST_VLC_RL(ff_mpeg4_rl_intra, 554); INIT_VLC_RL(ff_rvlc_rl_inter, 1072); - INIT_VLC_RL(ff_rvlc_rl_intra, 1072); + INIT_FIRST_VLC_RL(ff_rvlc_rl_intra, 1072); INIT_VLC_STATIC(&dc_lum, DC_VLC_BITS, 10 /* 13 */, &ff_mpeg4_DCtab_lum[0][1], 2, 1, &ff_mpeg4_DCtab_lum[0][0], 2, 1, 512);