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Code Issues Releases Activity

avcodec/hq_hqa: Make VLC tables static

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-03-04 13:37:14 +01:00
parent 51b2343ef9
commit 97beb63a66
1 changed files with 13 additions and 22 deletions
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35
libavcodec/hq_hqa.c
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@ -22,6 +22,7 @@
#include "libavutil/attributes.h"
#include "libavutil/mem_internal.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "bytestream.h"
@ -53,11 +54,12 @@ typedef struct HQContext {
AVCodecContext *avctx;
HQDSPContext hqhqadsp;
VLC hq_ac_vlc;
VLC hqa_cbp_vlc;
DECLARE_ALIGNED(16, int16_t, block)[12][64];
} HQContext;
static VLCElem hq_ac_vlc[1184];
static VLCElem hqa_cbp_vlc[32];
static inline void put_blocks(HQContext *c, AVFrame *pic,
int plane, int x, int y, int ilace,
int16_t *block0, int16_t *block1)
@ -87,7 +89,7 @@ static int hq_decode_block(HQContext *c, GetBitContext *gb, int16_t block[64],
}
for (;;) {
val = get_vlc2(gb, c->hq_ac_vlc.table, 9, 2);
val = get_vlc2(gb, hq_ac_vlc, 9, 2);
if (val < 0)
return AVERROR_INVALIDDATA;
@ -195,7 +197,7 @@ static int hqa_decode_mb(HQContext *c, AVFrame *pic, int qgroup,
if (get_bits_left(gb) < 1)
return AVERROR_INVALIDDATA;
cbp = get_vlc2(gb, c->hqa_cbp_vlc.table, 5, 1);
cbp = get_vlc2(gb, hqa_cbp_vlc, 5, 1);
for (i = 0; i < 12; i++)
memset(c->block[i], 0, sizeof(*c->block));
@ -372,33 +374,24 @@ static int hq_hqa_decode_frame(AVCodecContext *avctx, AVFrame *pic,
return avpkt->size;
}
static av_cold int hq_init_vlcs(HQContext *c)
static av_cold void hq_init_vlcs(void)
{
int ret = vlc_init(&c->hqa_cbp_vlc, 5, FF_ARRAY_ELEMS(cbp_vlc_lens),
cbp_vlc_lens, 1, 1, cbp_vlc_bits, 1, 1, 0);
if (ret < 0)
return ret;
VLC_INIT_STATIC_TABLE(hqa_cbp_vlc, 5, FF_ARRAY_ELEMS(cbp_vlc_lens),
cbp_vlc_lens, 1, 1, cbp_vlc_bits, 1, 1, 0);
return vlc_init(&c->hq_ac_vlc, 9, NUM_HQ_AC_ENTRIES,
hq_ac_bits, 1, 1, hq_ac_codes, 2, 2, 0);
VLC_INIT_STATIC_TABLE(hq_ac_vlc, 9, NUM_HQ_AC_ENTRIES,
hq_ac_bits, 1, 1, hq_ac_codes, 2, 2, 0);
}
static av_cold int hq_hqa_decode_init(AVCodecContext *avctx)
{
static AVOnce init_static_once = AV_ONCE_INIT;
HQContext *ctx = avctx->priv_data;
ctx->avctx = avctx;
ff_hqdsp_init(&ctx->hqhqadsp);
return hq_init_vlcs(ctx);
}
static av_cold int hq_hqa_decode_close(AVCodecContext *avctx)
{
HQContext *ctx = avctx->priv_data;
ff_vlc_free(&ctx->hq_ac_vlc);
ff_vlc_free(&ctx->hqa_cbp_vlc);
ff_thread_once(&init_static_once, hq_init_vlcs);
return 0;
}
@ -411,7 +404,5 @@ const FFCodec ff_hq_hqa_decoder = {
.priv_data_size = sizeof(HQContext),
.init = hq_hqa_decode_init,
FF_CODEC_DECODE_CB(hq_hqa_decode_frame),
.close = hq_hqa_decode_close,
.p.capabilities = AV_CODEC_CAP_DR1,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
};