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avcodec/dv: Don't pretend VLC allocation can't fail 

It can and therefore we switch from a heap allocated VLC table to
a VLC initialized via the mechanism for static VLCs, but without
an actual static VLC.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-29 16:31:43 +01:00 committed by Andreas Rheinhardt
parent 869b204cbc
commit fbb9e0dbc8
1 changed files with 3 additions and 3 deletions
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6
libavcodec/dv.c
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@ -202,7 +202,8 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
int i, j;
if (!done) {
VLC dv_vlc;
VLC_TYPE vlc_buf[FF_ARRAY_ELEMS(ff_dv_rl_vlc)][2] = { 0 };
VLC dv_vlc = { .table = vlc_buf, .table_allocated = FF_ARRAY_ELEMS(vlc_buf) };
uint16_t new_dv_vlc_bits[NB_DV_VLC * 2];
uint8_t new_dv_vlc_len[NB_DV_VLC * 2];
uint8_t new_dv_vlc_run[NB_DV_VLC * 2];
@ -232,7 +233,7 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
/* NOTE: as a trick, we use the fact the no codes are unused
* to accelerate the parsing of partial codes */
init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len,
1, 1, new_dv_vlc_bits, 2, 2, 0);
1, 1, new_dv_vlc_bits, 2, 2, INIT_VLC_USE_NEW_STATIC);
av_assert1(dv_vlc.table_size == 1664);
for (i = 0; i < dv_vlc.table_size; i++) {
@ -251,7 +252,6 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
ff_dv_rl_vlc[i].level = level;
ff_dv_rl_vlc[i].run = run;
}
ff_free_vlc(&dv_vlc);
}
s->avctx = avctx;