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h264: move last_qscale_diff into the per-slice context

This commit is contained in:
Anton Khirnov 2015-01-17 22:28:46 +01:00
parent e7226984ac
commit 5c8280c307
3 changed files with 8 additions and 8 deletions
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2
libavcodec/h264.h
View File

@ -307,6 +307,7 @@ typedef struct H264SliceContext {
int qscale;
int chroma_qp[2]; // QPc
int qp_thresh; ///< QP threshold to skip loopfilter
int last_qscale_diff;
// Weighted pred stuff
int use_weight;
@ -491,7 +492,6 @@ typedef struct H264Context {
/* chroma_pred_mode for i4x4 or i16x16, else 0 */
uint8_t *chroma_pred_mode_table;
int last_qscale_diff;
uint8_t (*mvd_table[2])[2];
DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5 * 8][2];
uint8_t *direct_table;

12
libavcodec/h264_cabac.c
View File

@ -1937,7 +1937,7 @@ int ff_h264_decode_mb_cabac(H264Context *h, H264SliceContext *sl)
h->cbp_table[mb_xy] = 0;
h->chroma_pred_mode_table[mb_xy] = 0;
h->last_qscale_diff = 0;
sl->last_qscale_diff = 0;
return 0;
@ -2050,7 +2050,7 @@ decode_intra_mb:
// All coeffs are present
memset(h->non_zero_count[mb_xy], 16, 48);
h->cur_pic.mb_type[mb_xy] = mb_type;
h->last_qscale_diff = 0;
sl->last_qscale_diff = 0;
return 0;
}
@ -2358,7 +2358,7 @@ decode_intra_mb:
}
// decode_cabac_mb_dqp
if(get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + (h->last_qscale_diff != 0)])){
if(get_cabac_noinline( &sl->cabac, &sl->cabac_state[60 + (sl->last_qscale_diff != 0)])){
int val = 1;
int ctx= 2;
const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
@ -2376,7 +2376,7 @@ decode_intra_mb:
val= (val + 1)>>1 ;
else
val= -((val + 1)>>1);
h->last_qscale_diff = val;
sl->last_qscale_diff = val;
sl->qscale += val;
if (((unsigned)sl->qscale) > max_qp){
if (sl->qscale < 0) sl->qscale += max_qp + 1;
@ -2385,7 +2385,7 @@ decode_intra_mb:
sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);
sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);
}else
h->last_qscale_diff=0;
sl->last_qscale_diff=0;
decode_cabac_luma_residual(h, sl, scan, scan8x8, pixel_shift, mb_type, cbp, 0);
if (CHROMA444(h)) {
@ -2442,7 +2442,7 @@ decode_intra_mb:
fill_rectangle(&sl->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);
fill_rectangle(&sl->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);
fill_rectangle(&sl->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);
h->last_qscale_diff = 0;
sl->last_qscale_diff = 0;
}
h->cur_pic.qscale_table[mb_xy] = sl->qscale;

2
libavcodec/h264_slice.c
View File

@ -1660,7 +1660,7 @@ int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl, H264Contex
h->cabac_init_idc = tmp;
}
h->last_qscale_diff = 0;
sl->last_qscale_diff = 0;
tmp = h->pps.init_qp + get_se_golomb(&h->gb);
if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) {
av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);