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Revert "avcodec/vlc: Add macro for ff_init_vlc_sparse()"

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This reverts commit 61669b7c40.

This commit broke building with MSVC due to its spec-incompliant handling
of ',' in __VA_ARGS__: These are not treated as argument separators for
further macros, so that in our case the init_vlc2() macro is treated as
having only one argument whenever the init_vlc() macro is used. See [1]
for further details.

[1]: https://reviews.llvm.org/D69626

Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-09-18 08:16:36 +02:00
parent 92396cee60
commit 6401a5d4b8
2 changed files with 7 additions and 12 deletions
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12
libavcodec/smacker.c
View File

@ -222,9 +222,9 @@ static int smacker_decode_header_tree(SmackVContext *smk, GetBitContext *gb, int
skip_bits1(gb);
if (h.current > 1) {
err = ff_init_vlc_sparse(&vlc[i], SMKTREE_BITS, h.current,
INIT_VLC_DEFAULT_SIZES(h.lengths),
INIT_VLC_DEFAULT_SIZES(h.bits),
INIT_VLC_DEFAULT_SIZES(h.values),
h.lengths, sizeof(*h.lengths), sizeof(*h.lengths),
h.bits, sizeof(*h.bits), sizeof(*h.bits),
h.values, sizeof(*h.values), sizeof(*h.values),
INIT_VLC_LE);
if (err < 0) {
av_log(smk->avctx, AV_LOG_ERROR, "Cannot build VLC table\n");
@ -653,9 +653,9 @@ static int smka_decode_frame(AVCodecContext *avctx, void *data,
skip_bits1(&gb);
if (h.current > 1) {
ret = ff_init_vlc_sparse(&vlc[i], SMKTREE_BITS, h.current,
INIT_VLC_DEFAULT_SIZES(h.lengths),
INIT_VLC_DEFAULT_SIZES(h.bits),
INIT_VLC_DEFAULT_SIZES(h.values),
h.lengths, sizeof(*h.lengths), sizeof(*h.lengths),
h.bits, sizeof(*h.bits), sizeof(*h.bits),
h.values, sizeof(*h.values), sizeof(*h.values),
INIT_VLC_LE);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Cannot build VLC table\n");

7
libavcodec/vlc.h
View File

@ -35,12 +35,7 @@ typedef struct RL_VLC_ELEM {
uint8_t run;
} RL_VLC_ELEM;
#define INIT_VLC_DEFAULT_SIZES(ptr) \
(ptr), sizeof((ptr)[0]), sizeof((ptr)[0])
#define init_vlc(...) init_vlc2(__VA_ARGS__)
#define init_vlc2(vlc, nb_bits, nb_codes, \
#define init_vlc(vlc, nb_bits, nb_codes, \
bits, bits_wrap, bits_size, \
codes, codes_wrap, codes_size, \
flags) \