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authorReimar Döffinger <Reimar.Doeffinger@gmx.de>2014-08-31 20:07:40 +0200
committerReimar Döffinger <Reimar.Doeffinger@gmx.de>2014-09-02 19:20:28 +0200
commite48cd2de98c3dbac998c76c54749d1b534b32ff6 (patch)
tree321f7eb203fd9002e99f18338818c48c69c97fb7 /libavcodec/mpeg12.c
parent2ca78936c7d4862100b7eb9b4c6097b063d495c8 (diff)
downloadffmpeg-e48cd2de98c3dbac998c76c54749d1b534b32ff6.tar.gz
rl.h: Use on-stack temporary VLC tables instead of having them static.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diffstat (limited to 'libavcodec/mpeg12.c')
-rw-r--r--libavcodec/mpeg12.c21
1 files changed, 10 insertions, 11 deletions
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index cb00baf809..fc43a53701 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -70,22 +70,21 @@ static const uint8_t table_mb_btype[11][2] = {
#define INIT_2D_VLC_RL(rl, static_size)\
{\
static RL_VLC_ELEM rl_vlc_table[static_size];\
- VLC tmp_vlc;\
- INIT_VLC_STATIC(&tmp_vlc, TEX_VLC_BITS, rl.n + 2,\
- &rl.table_vlc[0][1], 4, 2,\
- &rl.table_vlc[0][0], 4, 2, static_size);\
-\
rl.rl_vlc[0] = rl_vlc_table;\
- init_2d_vlc_rl(&rl, &tmp_vlc);\
+ init_2d_vlc_rl(&rl, static_size);\
}
-static av_cold void init_2d_vlc_rl(RLTable *rl, const VLC *vlc)
+static av_cold void init_2d_vlc_rl(RLTable *rl, unsigned static_size)
{
int i;
-
- for (i = 0; i < vlc->table_size; i++) {
- int code = vlc->table[i][0];
- int len = vlc->table[i][1];
+ VLC_TYPE table[680][2] = {{0}};
+ VLC vlc = { .table = table, .table_allocated = static_size };
+ av_assert0(static_size <= FF_ARRAY_ELEMS(table));
+ init_vlc(&vlc, TEX_VLC_BITS, rl->n + 2, &rl->table_vlc[0][1], 4, 2, &rl->table_vlc[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
+
+ for (i = 0; i < vlc.table_size; i++) {
+ int code = vlc.table[i][0];
+ int len = vlc.table[i][1];
int level, run;
if (len == 0) { // illegal code