[FFmpeg-devel] [PATCH 37/61] avcodec/mss4: Partially inline max_depth and nb_bits of VLC
Andreas Rheinhardt
andreas.rheinhardt at outlook.com
Wed Sep 27 01:17:08 EEST 2023
It is known at compile-time for the vec_entry_vlcs.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
libavcodec/mss4.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/libavcodec/mss4.c b/libavcodec/mss4.c
index 0e7cc3e124..8ae4f152c6 100644
--- a/libavcodec/mss4.c
+++ b/libavcodec/mss4.c
@@ -156,9 +156,10 @@ static av_always_inline int get_coeff_bits(GetBitContext *gb, int nbits)
return val;
}
-static inline int get_coeff(GetBitContext *gb, VLC *vlc)
+static inline int get_coeff(GetBitContext *gb, const VLC *vlc,
+ int nb_bits, int max_depth)
{
- int val = get_vlc2(gb, vlc->table, vlc->bits, 2);
+ int val = get_vlc2(gb, vlc->table, nb_bits, max_depth);
return get_coeff_bits(gb, val);
}
@@ -171,7 +172,7 @@ static int mss4_decode_dct(GetBitContext *gb, VLC *dc_vlc, VLC *ac_vlc,
memset(block, 0, sizeof(*block) * 64);
- dc = get_coeff(gb, dc_vlc);
+ dc = get_coeff(gb, dc_vlc, dc_vlc->bits, 2);
// DC prediction is the same as in MSS3
if (by) {
if (bx) {
@@ -337,7 +338,7 @@ static int mss4_decode_image_block(MSS4Context *ctx, GetBitContext *gb,
for (i = 0; i < 3; i++) {
vec_len[i] = vec_len_syms[!!i][get_unary(gb, 0, 3)];
for (j = 0; j < vec_len[i]; j++) {
- vec[i][j] = get_coeff(gb, &vec_entry_vlc[!!i]);
+ vec[i][j] = get_coeff(gb, &vec_entry_vlc[!!i], 5, 1);
vec[i][j] += ctx->prev_vec[i][j];
ctx->prev_vec[i][j] = vec[i][j];
}
--
2.34.1
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