[FFmpeg-cvslog] avcodec/mpegaudiodec_template: Don't use unnecessarily many VLC bits

Andreas Rheinhardt git at videolan.org
Tue Nov 24 12:49:38 EET 2020


ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Tue Nov 17 14:29:58 2020 +0100| [79ab46ac6e943c7ac886461f8d761e4c0036f8c3] | committer: Andreas Rheinhardt

avcodec/mpegaudiodec_template: Don't use unnecessarily many VLC bits

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=79ab46ac6e943c7ac886461f8d761e4c0036f8c3
---

 libavcodec/mpegaudiodec_template.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/mpegaudiodec_template.c b/libavcodec/mpegaudiodec_template.c
index 849e3e5c09..0634f70b05 100644
--- a/libavcodec/mpegaudiodec_template.c
+++ b/libavcodec/mpegaudiodec_template.c
@@ -108,8 +108,8 @@ static const int huff_vlc_tables_sizes[16] = {
   142,  204,  190,  170,  542,  460,  662,  414
 };
 static VLC huff_quad_vlc[2];
-static VLC_TYPE  huff_quad_vlc_tables[128+16][2];
-static const int huff_quad_vlc_tables_sizes[2] = { 128, 16 };
+static VLC_TYPE  huff_quad_vlc_tables[64+16][2];
+static const int huff_quad_vlc_tables_sizes[2] = { 64, 16 };
 /* computed from band_size_long */
 static uint16_t band_index_long[9][23];
 #include "mpegaudio_tablegen.h"
@@ -321,7 +321,7 @@ static av_cold void decode_init_static(void)
     for (i = 0; i < 2; i++) {
         huff_quad_vlc[i].table = huff_quad_vlc_tables+offset;
         huff_quad_vlc[i].table_allocated = huff_quad_vlc_tables_sizes[i];
-        init_vlc(&huff_quad_vlc[i], i == 0 ? 7 : 4, 16,
+        init_vlc(&huff_quad_vlc[i], i == 0 ? 6 : 4, 16,
                  mpa_quad_bits[i], 1, 1, mpa_quad_codes[i], 1, 1,
                  INIT_VLC_USE_NEW_STATIC);
         offset += huff_quad_vlc_tables_sizes[i];



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