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Move +52 from the loop filter to the alpha/beta offsets in the context. 

This should fix a segfault, also it might be faster on systems where the
+52 wasnt free.

Originally committed as revision 21406 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-01-23 18:05:30 +00:00
parent 6231d0983b
commit 0c32e19d58
4 changed files with 30 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/dxva2_h264.c
View File

@ -225,8 +225,8 @@ static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
slice->num_ref_idx_l0_active_minus1 = h->ref_count[0] - 1;
if (h->list_count > 1)
slice->num_ref_idx_l1_active_minus1 = h->ref_count[1] - 1;
slice->slice_alpha_c0_offset_div2 = h->slice_alpha_c0_offset / 2;
slice->slice_beta_offset_div2 = h->slice_beta_offset / 2;
slice->slice_alpha_c0_offset_div2 = h->slice_alpha_c0_offset / 2 - 26;
slice->slice_beta_offset_div2 = h->slice_beta_offset / 2 - 26;
slice->Reserved8Bits = 0;
for (list = 0; list < 2; list++) {

17
libavcodec/h264.c
View File

@ -2032,8 +2032,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
}
h->deblocking_filter = 1;
h->slice_alpha_c0_offset = 0;
h->slice_beta_offset = 0;
h->slice_alpha_c0_offset = 52;
h->slice_beta_offset = 52;
if( h->pps.deblocking_filter_parameters_present ) {
tmp= get_ue_golomb_31(&s->gb);
if(tmp > 2){
@ -2045,8 +2045,13 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
h->deblocking_filter^= 1; // 1<->0
if( h->deblocking_filter ) {
h->slice_alpha_c0_offset = get_se_golomb(&s->gb) << 1;
h->slice_beta_offset = get_se_golomb(&s->gb) << 1;
h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
if( h->slice_alpha_c0_offset > 104U
|| h->slice_beta_offset > 104U){
av_log(s->avctx, AV_LOG_ERROR, "deblocking filter parameters %d %d out of range\n", h->slice_alpha_c0_offset, h->slice_beta_offset);
return -1;
}
}
}
@ -2071,7 +2076,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
return 1; // deblocking switched inside frame
}
}
h->qp_thresh= 15 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1]);
h->qp_thresh= 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1]);
#if 0 //FMO
if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
@ -2132,7 +2137,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
h->ref_count[0], h->ref_count[1],
s->qscale,
h->deblocking_filter, h->slice_alpha_c0_offset/2, h->slice_beta_offset/2,
h->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26,
h->use_weight,
h->use_weight==1 && h->use_weight_chroma ? "c" : "",
h->slice_type == FF_B_TYPE ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""

30
libavcodec/h264_loopfilter.c
View File

@ -100,9 +100,9 @@ static const uint8_t tc0_table[52*3][4] = {
};
static void av_noinline filter_mb_edgev( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h) {
const unsigned int index_a = 52 + qp + h->slice_alpha_c0_offset;
const unsigned int index_a = qp + h->slice_alpha_c0_offset;
const int alpha = alpha_table[index_a];
const int beta = (beta_table+52)[qp + h->slice_beta_offset];
const int beta = beta_table[qp + h->slice_beta_offset];
if (alpha ==0 || beta == 0) return;
if( bS[0] < 4 ) {
@ -117,9 +117,9 @@ static void av_noinline filter_mb_edgev( uint8_t *pix, int stride, int16_t bS[4]
}
}
static void av_noinline filter_mb_edgecv( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
const unsigned int index_a = 52 + qp + h->slice_alpha_c0_offset;
const unsigned int index_a = qp + h->slice_alpha_c0_offset;
const int alpha = alpha_table[index_a];
const int beta = (beta_table+52)[qp + h->slice_beta_offset];
const int beta = beta_table[qp + h->slice_beta_offset];
if (alpha ==0 || beta == 0) return;
if( bS[0] < 4 ) {
@ -137,8 +137,8 @@ static void av_noinline filter_mb_edgecv( uint8_t *pix, int stride, int16_t bS[4
static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
int i;
int index_a = qp + h->slice_alpha_c0_offset;
int alpha = (alpha_table+52)[index_a];
int beta = (beta_table+52)[qp + h->slice_beta_offset];
int alpha = alpha_table[index_a];
int beta = beta_table[qp + h->slice_beta_offset];
for( i = 0; i < 8; i++, pix += stride) {
const int bS_index = (i >> 1) * bsi;
@ -147,7 +147,7 @@ static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int
}
if( bS[bS_index] < 4 ) {
const int tc0 = (tc0_table+52)[index_a][bS[bS_index]];
const int tc0 = tc0_table[index_a][bS[bS_index]];
const int p0 = pix[-1];
const int p1 = pix[-2];
const int p2 = pix[-3];
@ -226,8 +226,8 @@ static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int
static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
int i;
int index_a = qp + h->slice_alpha_c0_offset;
int alpha = (alpha_table+52)[index_a];
int beta = (beta_table+52)[qp + h->slice_beta_offset];
int alpha = alpha_table[index_a];
int beta = beta_table[qp + h->slice_beta_offset];
for( i = 0; i < 4; i++, pix += stride) {
const int bS_index = i*bsi;
@ -236,7 +236,7 @@ static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, in
}
if( bS[bS_index] < 4 ) {
const int tc = (tc0_table+52)[index_a][bS[bS_index]] + 1;
const int tc = tc0_table[index_a][bS[bS_index]] + 1;
const int p0 = pix[-1];
const int p1 = pix[-2];
const int q0 = pix[0];
@ -270,9 +270,9 @@ static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, in
}
static void av_noinline filter_mb_edgeh( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
const unsigned int index_a = 52 + qp + h->slice_alpha_c0_offset;
const unsigned int index_a = qp + h->slice_alpha_c0_offset;
const int alpha = alpha_table[index_a];
const int beta = (beta_table+52)[qp + h->slice_beta_offset];
const int beta = beta_table[qp + h->slice_beta_offset];
if (alpha ==0 || beta == 0) return;
if( bS[0] < 4 ) {
@ -288,9 +288,9 @@ static void av_noinline filter_mb_edgeh( uint8_t *pix, int stride, int16_t bS[4]
}
static void av_noinline filter_mb_edgech( uint8_t *pix, int stride, int16_t bS[4], unsigned int qp, H264Context *h ) {
const unsigned int index_a = 52 + qp + h->slice_alpha_c0_offset;
const unsigned int index_a = qp + h->slice_alpha_c0_offset;
const int alpha = alpha_table[index_a];
const int beta = (beta_table+52)[qp + h->slice_beta_offset];
const int beta = beta_table[qp + h->slice_beta_offset];
if (alpha ==0 || beta == 0) return;
if( bS[0] < 4 ) {
@ -332,7 +332,7 @@ void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y,
qp1 = (qp + qp1 + 1) >> 1;
qpc0 = (qpc + qpc0 + 1) >> 1;
qpc1 = (qpc + qpc1 + 1) >> 1;
qp_thresh = 15 - h->slice_alpha_c0_offset;
qp_thresh = 15+52 - h->slice_alpha_c0_offset;
if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
return;

4
libavcodec/vaapi_h264.c
View File

@ -317,8 +317,8 @@ static int decode_slice(AVCodecContext *avctx,
slice_param->cabac_init_idc = h->cabac_init_idc;
slice_param->slice_qp_delta = s->qscale - h->pps.init_qp;
slice_param->disable_deblocking_filter_idc = h->deblocking_filter < 2 ? !h->deblocking_filter : h->deblocking_filter;
slice_param->slice_alpha_c0_offset_div2 = h->slice_alpha_c0_offset / 2;
slice_param->slice_beta_offset_div2 = h->slice_beta_offset / 2;
slice_param->slice_alpha_c0_offset_div2 = h->slice_alpha_c0_offset / 2 - 26;
slice_param->slice_beta_offset_div2 = h->slice_beta_offset / 2 - 26;
slice_param->luma_log2_weight_denom = h->luma_log2_weight_denom;
slice_param->chroma_log2_weight_denom = h->chroma_log2_weight_denom;