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Diffstat (limited to 'src/libffmpeg/libavcodec/h264.c')
-rw-r--r--src/libffmpeg/libavcodec/h264.c1732
1 files changed, 1646 insertions, 86 deletions
diff --git a/src/libffmpeg/libavcodec/h264.c b/src/libffmpeg/libavcodec/h264.c
index 3f60e35e8..fa254e93b 100644
--- a/src/libffmpeg/libavcodec/h264.c
+++ b/src/libffmpeg/libavcodec/h264.c
@@ -31,6 +31,8 @@
#include "h264data.h"
#include "golomb.h"
+#include "cabac.h"
+
#undef NDEBUG
#include <assert.h>
@@ -162,6 +164,8 @@ typedef struct H264Context{
unsigned int top_samples_available;
unsigned int topright_samples_available;
unsigned int left_samples_available;
+ uint8_t (*top_border)[16+2*8];
+ uint8_t left_border[17+2*9];
/**
* non zero coeff count cache.
@@ -248,9 +252,9 @@ typedef struct H264Context{
int chroma_offset[2][16][2];
//deblock
- int disable_deblocking_filter_idc;
- int slice_alpha_c0_offset_div2;
- int slice_beta_offset_div2;
+ int deblocking_filter; ///< disable_deblocking_filter_idc with 1<->0
+ int slice_alpha_c0_offset;
+ int slice_beta_offset;
int redundant_pic_count;
@@ -282,6 +286,22 @@ typedef struct H264Context{
GetBitContext *inter_gb_ptr;
DCTELEM mb[16*24] __align8;
+
+ /**
+ * Cabac
+ */
+ CABACContext cabac;
+ uint8_t cabac_state[399];
+ int cabac_init_idc;
+
+ /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
+ uint16_t *cbp_table;
+ /* chroma_pred_mode for i4x4 or i16x16, else 0 */
+ uint8_t *chroma_pred_mode_table;
+ int last_qscale_diff;
+ int16_t (*mvd_table[2])[2];
+ int16_t mvd_cache[2][5*8][2];
+
}H264Context;
static VLC coeff_token_vlc[4];
@@ -295,6 +315,7 @@ static VLC run7_vlc;
static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
+static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr);
static inline uint32_t pack16to32(int a, int b){
#ifdef WORDS_BIGENDIAN
@@ -610,9 +631,52 @@ static inline void fill_caches(H264Context *h, int mb_type){
*(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
*(uint32_t*)h->mv_cache [list][scan8[4 ]]=
*(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
+
+ if( h->pps.cabac ) {
+ /* XXX beurk, Load mvd */
+ if(IS_INTER(topleft_type)){
+ const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
+ *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy];
+ }else{
+ *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= 0;
+ }
+
+ if(IS_INTER(top_type)){
+ const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
+ *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
+ *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
+ *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
+ *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
+ }else{
+ *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
+ *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
+ *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
+ *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
+ }
+ if(IS_INTER(left_type[0])){
+ const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
+ *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
+ *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
+ }else{
+ *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
+ *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
+ }
+ if(IS_INTER(left_type[1])){
+ const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
+ *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
+ *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
+ }else{
+ *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
+ *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
+ }
+ *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
+ *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
+ *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
+ *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
+ *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
+ }
}
//FIXME
-
}
#endif
}
@@ -920,6 +984,13 @@ static inline void write_back_motion(H264Context *h, int mb_type){
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]=
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= 0;
}
+ if( h->pps.cabac ) {
+ /* FIXME needed ? */
+ for(y=0; y<4; y++){
+ *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]=
+ *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= 0;
+ }
+ }
for(y=0; y<2; y++){
*(uint16_t*)s->current_picture.motion_val[list][b8_xy + y*h->b8_stride]= (LIST_NOT_USED&0xFF)*0x0101;
}
@@ -931,6 +1002,12 @@ static inline void write_back_motion(H264Context *h, int mb_type){
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
}
+ if( h->pps.cabac ) {
+ for(y=0; y<4; y++){
+ *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
+ *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
+ }
+ }
for(y=0; y<2; y++){
s->current_picture.ref_index[list][b8_xy + 0 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+0 + 16*y];
s->current_picture.ref_index[list][b8_xy + 1 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+2 + 16*y];
@@ -988,6 +1065,7 @@ static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *c
dst[di++]= 0;
dst[di++]= 0;
si+=3;
+ continue;
}else //next start code
break;
}
@@ -1001,6 +1079,7 @@ static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *c
return dst;
}
+#if 0
/**
* @param src the data which should be escaped
* @param dst the target buffer, dst+1 == src is allowed as a special case
@@ -1073,6 +1152,7 @@ static void encode_rbsp_trailing(PutBitContext *pb){
length= (-put_bits_count(pb))&7;
if(length) put_bits(pb, length, 0);
}
+#endif
/**
* identifies the exact end of the bitstream
@@ -1132,6 +1212,7 @@ static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp){
}
}
+#if 0
/**
* dct tranforms the 16 dc values.
* @param qp quantization parameter ??? FIXME
@@ -1169,6 +1250,8 @@ static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
block[stride*10+offset]= (z0 - z3)>>1;
}
}
+#endif
+
#undef xStride
#undef stride
@@ -1194,6 +1277,7 @@ static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp){
block[stride*1 + xStride*1]= ((e-b)*qmul + 0)>>1;
}
+#if 0
static void chroma_dc_dct_c(DCTELEM *block){
const int stride= 16*2;
const int xStride= 16;
@@ -1214,6 +1298,7 @@ static void chroma_dc_dct_c(DCTELEM *block){
block[stride*1 + xStride*0]= (a-c);
block[stride*1 + xStride*1]= (e-b);
}
+#endif
/**
* gets the chroma qp.
@@ -1232,18 +1317,6 @@ static void h264_add_idct_c(uint8_t *dst, DCTELEM *block, int stride){
uint8_t *cm = cropTbl + MAX_NEG_CROP;
block[0] += 32;
-#if 1
- for(i=0; i<4; i++){
- const int z0= block[i + 4*0] + block[i + 4*2];
- const int z1= block[i + 4*0] - block[i + 4*2];
- const int z2= (block[i + 4*1]>>1) - block[i + 4*3];
- const int z3= block[i + 4*1] + (block[i + 4*3]>>1);
-
- block[i + 4*0]= z0 + z3;
- block[i + 4*1]= z1 + z2;
- block[i + 4*2]= z1 - z2;
- block[i + 4*3]= z0 - z3;
- }
for(i=0; i<4; i++){
const int z0= block[0 + 4*i] + block[2 + 4*i];
@@ -1251,18 +1324,6 @@ static void h264_add_idct_c(uint8_t *dst, DCTELEM *block, int stride){
const int z2= (block[1 + 4*i]>>1) - block[3 + 4*i];
const int z3= block[1 + 4*i] + (block[3 + 4*i]>>1);
- dst[0 + i*stride]= cm[ dst[0 + i*stride] + ((z0 + z3) >> 6) ];
- dst[1 + i*stride]= cm[ dst[1 + i*stride] + ((z1 + z2) >> 6) ];
- dst[2 + i*stride]= cm[ dst[2 + i*stride] + ((z1 - z2) >> 6) ];
- dst[3 + i*stride]= cm[ dst[3 + i*stride] + ((z0 - z3) >> 6) ];
- }
-#else
- for(i=0; i<4; i++){
- const int z0= block[0 + 4*i] + block[2 + 4*i];
- const int z1= block[0 + 4*i] - block[2 + 4*i];
- const int z2= (block[1 + 4*i]>>1) - block[3 + 4*i];
- const int z3= block[1 + 4*i] + (block[3 + 4*i]>>1);
-
block[0 + 4*i]= z0 + z3;
block[1 + 4*i]= z1 + z2;
block[2 + 4*i]= z1 - z2;
@@ -1280,9 +1341,9 @@ static void h264_add_idct_c(uint8_t *dst, DCTELEM *block, int stride){
dst[i + 2*stride]= cm[ dst[i + 2*stride] + ((z1 - z2) >> 6) ];
dst[i + 3*stride]= cm[ dst[i + 3*stride] + ((z0 - z3) >> 6) ];
}
-#endif
}
+#if 0
static void h264_diff_dct_c(DCTELEM *block, uint8_t *src1, uint8_t *src2, int stride){
int i;
//FIXME try int temp instead of block
@@ -1315,6 +1376,7 @@ static void h264_diff_dct_c(DCTELEM *block, uint8_t *src1, uint8_t *src2, int st
block[3*4 + i]= z3 - 2*z2;
}
}
+#endif
//FIXME need to check that this doesnt overflow signed 32 bit for low qp, iam not sure, its very close
//FIXME check that gcc inlines this (and optimizes intra & seperate_dc stuff away)
@@ -2106,10 +2168,15 @@ static void init_pred_ptrs(H264Context *h){
static void free_tables(H264Context *h){
av_freep(&h->intra4x4_pred_mode);
+ av_freep(&h->chroma_pred_mode_table);
+ av_freep(&h->cbp_table);
+ av_freep(&h->mvd_table[0]);
+ av_freep(&h->mvd_table[1]);
av_freep(&h->non_zero_count);
av_freep(&h->slice_table_base);
+ av_freep(&h->top_border);
h->slice_table= NULL;
-
+
av_freep(&h->mb2b_xy);
av_freep(&h->mb2b8_xy);
}
@@ -2124,8 +2191,17 @@ static int alloc_tables(H264Context *h){
int x,y;
CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
+
CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
CHECKED_ALLOCZ(h->slice_table_base , big_mb_num * sizeof(uint8_t))
+ CHECKED_ALLOCZ(h->top_border , s->mb_width * (16+8+8) * sizeof(uint8_t))
+
+ if( h->pps.cabac ) {
+ CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
+ CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
+ CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
+ CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
+ }
memset(h->slice_table_base, -1, big_mb_num * sizeof(uint8_t));
h->slice_table= h->slice_table_base + s->mb_stride + 1;
@@ -2166,6 +2242,8 @@ static int decode_init(AVCodecContext *avctx){
H264Context *h= avctx->priv_data;
MpegEncContext * const s = &h->s;
+ MPV_decode_defaults(s);
+
s->avctx = avctx;
common_init(h);
@@ -2173,7 +2251,6 @@ static int decode_init(AVCodecContext *avctx){
s->workaround_bugs= avctx->workaround_bugs;
// set defaults
- s->progressive_sequence=1;
// s->decode_mb= ff_h263_decode_mb;
s->low_delay= 1;
avctx->pix_fmt= PIX_FMT_YUV420P;
@@ -2205,6 +2282,66 @@ static void frame_start(H264Context *h){
// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
}
+static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){
+ MpegEncContext * const s = &h->s;
+ int i;
+
+ src_y -= linesize;
+ src_cb -= uvlinesize;
+ src_cr -= uvlinesize;
+
+ h->left_border[0]= h->top_border[s->mb_x][15];
+ for(i=1; i<17; i++){
+ h->left_border[i]= src_y[15+i* linesize];
+ }
+
+ *(uint64_t*)(h->top_border[s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
+ *(uint64_t*)(h->top_border[s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
+
+ if(!(s->flags&CODEC_FLAG_GRAY)){
+ h->left_border[17 ]= h->top_border[s->mb_x][16+7];
+ h->left_border[17+9]= h->top_border[s->mb_x][24+7];
+ for(i=1; i<9; i++){
+ h->left_border[i+17 ]= src_cb[7+i*uvlinesize];
+ h->left_border[i+17+9]= src_cr[7+i*uvlinesize];
+ }
+ *(uint64_t*)(h->top_border[s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
+ *(uint64_t*)(h->top_border[s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
+ }
+}
+
+static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){
+ MpegEncContext * const s = &h->s;
+ int temp8, i;
+ uint64_t temp64;
+
+ src_y -= linesize + 1;
+ src_cb -= uvlinesize + 1;
+ src_cr -= uvlinesize + 1;
+
+#define XCHG(a,b,t,xchg)\
+t= a;\
+if(xchg)\
+ a= b;\
+b= t;
+
+ for(i=0; i<17; i++){
+ XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
+ }
+
+ XCHG(*(uint64_t*)(h->top_border[s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
+ XCHG(*(uint64_t*)(h->top_border[s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
+
+ if(!(s->flags&CODEC_FLAG_GRAY)){
+ for(i=0; i<9; i++){
+ XCHG(h->left_border[i+17 ], src_cb[i*uvlinesize], temp8, xchg);
+ XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg);
+ }
+ XCHG(*(uint64_t*)(h->top_border[s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
+ XCHG(*(uint64_t*)(h->top_border[s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
+ }
+}
+
static void hl_decode_mb(H264Context *h){
MpegEncContext * const s = &h->s;
const int mb_x= s->mb_x;
@@ -2240,6 +2377,9 @@ static void hl_decode_mb(H264Context *h){
}
if(IS_INTRA(mb_type)){
+ if(h->deblocking_filter)
+ xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1);
+
if(!(s->flags&CODEC_FLAG_GRAY)){
h->pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
h->pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
@@ -2257,6 +2397,9 @@ static void hl_decode_mb(H264Context *h){
if(!topright_avail){
tr= ptr[3 - linesize]*0x01010101;
topright= (uint8_t*) &tr;
+ }else if(i==5 && h->deblocking_filter){
+ tr= *(uint32_t*)h->top_border[mb_x+1];
+ topright= (uint8_t*) &tr;
}
h->pred4x4[ dir ](ptr, topright, linesize);
@@ -2275,6 +2418,8 @@ static void hl_decode_mb(H264Context *h){
else
svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
}
+ if(h->deblocking_filter)
+ xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
}else if(s->codec_id == CODEC_ID_H264){
hl_motion(h, dest_y, dest_cb, dest_cr,
s->dsp.put_h264_qpel_pixels_tab, s->dsp.put_h264_chroma_pixels_tab,
@@ -2331,10 +2476,10 @@ static void hl_decode_mb(H264Context *h){
}
}
}
-}
-
-static void decode_mb_cabac(H264Context *h){
-// MpegEncContext * const s = &h->s;
+ if(h->deblocking_filter) {
+ backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
+ filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr);
+ }
}
/**
@@ -2979,9 +3124,16 @@ static int decode_slice_header(H264Context *h){
if(s->current_picture.reference)
decode_ref_pic_marking(h);
- //FIXME CABAC stuff
- s->qscale = h->pps.init_qp + get_se_golomb(&s->gb); //slice_qp_delta
+ if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE && h->pps.cabac )
+ h->cabac_init_idc = get_ue_golomb(&s->gb);
+
+ h->last_qscale_diff = 0;
+ s->qscale = h->pps.init_qp + get_se_golomb(&s->gb);
+ if(s->qscale<0 || s->qscale>51){
+ av_log(s->avctx, AV_LOG_ERROR, "QP %d out of range\n", s->qscale);
+ return -1;
+ }
//FIXME qscale / qp ... stuff
if(h->slice_type == SP_TYPE){
get_bits1(&s->gb); /* sp_for_switch_flag */
@@ -2990,14 +3142,19 @@ static int decode_slice_header(H264Context *h){
get_se_golomb(&s->gb); /* slice_qs_delta */
}
+ h->deblocking_filter = 1;
+ h->slice_alpha_c0_offset = 0;
+ h->slice_beta_offset = 0;
if( h->pps.deblocking_filter_parameters_present ) {
- h->disable_deblocking_filter_idc= get_ue_golomb(&s->gb);
- if( h->disable_deblocking_filter_idc != 1 ) {
- h->slice_alpha_c0_offset_div2= get_se_golomb(&s->gb);
- h->slice_beta_offset_div2= get_se_golomb(&s->gb);
+ h->deblocking_filter= get_ue_golomb(&s->gb);
+ if(h->deblocking_filter < 2)
+ 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;
}
- }else
- h->disable_deblocking_filter_idc= 0;
+ }
#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)
@@ -3012,7 +3169,7 @@ static int decode_slice_header(H264Context *h){
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->disable_deblocking_filter_idc
+ h->deblocking_filter
);
}
@@ -3122,7 +3279,7 @@ static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, in
if(ABS(level[i]) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
#else
if((2+level_code)>>1) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
- ? == prefix > 2 or sth
+ /* ? == prefix > 2 or sth */
#endif
tprintf("level: %d suffix_length:%d\n", level[i], suffix_length);
}
@@ -3186,7 +3343,7 @@ static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, in
* decodes a macroblock
* @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
*/
-static int decode_mb(H264Context *h){
+static int decode_mb_cavlc(H264Context *h){
MpegEncContext * const s = &h->s;
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
int mb_type, partition_count, cbp;
@@ -3223,6 +3380,7 @@ static int decode_mb(H264Context *h){
write_back_motion(h, mb_type);
s->current_picture.mb_type[mb_xy]= mb_type; //FIXME SKIP type
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
h->slice_table[ mb_xy ]= h->slice_num;
h->prev_mb_skiped= 1;
@@ -3303,7 +3461,9 @@ decode_intra_mb:
skip_bits(&s->gb, 384); //FIXME check /fix the bitstream readers
+ //FIXME deblock filter, non_zero_count_cache init ...
memset(h->non_zero_count[mb_xy], 16, 16);
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
return 0;
}
@@ -3607,71 +3767,1470 @@ decode_intra_mb:
nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
}
}else{
- memset(&h->non_zero_count_cache[8], 0, 8*5);
+ uint8_t * const nnz= &h->non_zero_count_cache[0];
+ fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
+ nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
+ nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
}
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
write_back_non_zero_count(h);
return 0;
}
-static int decode_slice(H264Context *h){
+static int decode_cabac_mb_type( H264Context *h ) {
MpegEncContext * const s = &h->s;
- const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
- s->mb_skip_run= -1;
-
-#if 1
- for(;;){
- int ret= decode_mb(h);
-
- hl_decode_mb(h);
-
- if(ret>=0 && h->sps.mb_aff){ //FIXME optimal? or let mb_decode decode 16x32 ?
- s->mb_y++;
- ret= decode_mb(h);
-
- hl_decode_mb(h);
- s->mb_y--;
+ if( h->slice_type == I_TYPE ) {
+ const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
+ int ctx = 0;
+ int mb_type;
+
+ if( s->mb_x > 0 && !IS_INTRA4x4( s->current_picture.mb_type[mb_xy-1] ) )
+ ctx++;
+ if( s->mb_y > 0 && !IS_INTRA4x4( s->current_picture.mb_type[mb_xy-s->mb_stride] ) )
+ ctx++;
+
+ if( get_cabac( &h->cabac, &h->cabac_state[3+ctx] ) == 0 )
+ return 0; /* I4x4 */
+
+ if( get_cabac_terminate( &h->cabac ) )
+ return 25; /* PCM */
+
+ mb_type = 1; /* I16x16 */
+ if( get_cabac( &h->cabac, &h->cabac_state[3+3] ) )
+ mb_type += 12; /* cbp_luma != 0 */
+
+ if( get_cabac( &h->cabac, &h->cabac_state[3+4] ) ) {
+ if( get_cabac( &h->cabac, &h->cabac_state[3+5] ) )
+ mb_type += 4 * 2; /* cbp_chroma == 2 */
+ else
+ mb_type += 4 * 1; /* cbp_chroma == 1 */
+ }
+ if( get_cabac( &h->cabac, &h->cabac_state[3+6] ) )
+ mb_type += 2;
+ if( get_cabac( &h->cabac, &h->cabac_state[3+7] ) )
+ mb_type += 1;
+ return mb_type;
+
+ } else if( h->slice_type == P_TYPE ) {
+ if( get_cabac( &h->cabac, &h->cabac_state[14] ) == 0 ) {
+ /* P-type */
+ if( get_cabac( &h->cabac, &h->cabac_state[15] ) == 0 ) {
+ if( get_cabac( &h->cabac, &h->cabac_state[16] ) == 0 )
+ return 0; /* P_L0_D16x16; */
+ else
+ return 3; /* P_8x8; */
+ } else {
+ if( get_cabac( &h->cabac, &h->cabac_state[17] ) == 0 )
+ return 2; /* P_L0_D8x16; */
+ else
+ return 1; /* P_L0_D16x8; */
+ }
+ } else {
+ int mb_type;
+ /* I-type */
+ if( get_cabac( &h->cabac, &h->cabac_state[17] ) == 0 )
+ return 5+0; /* I_4x4 */
+ if( get_cabac_terminate( &h->cabac ) )
+ return 5+25; /*I_PCM */
+ mb_type = 5+1; /* I16x16 */
+ if( get_cabac( &h->cabac, &h->cabac_state[17+1] ) )
+ mb_type += 12; /* cbp_luma != 0 */
+
+ if( get_cabac( &h->cabac, &h->cabac_state[17+2] ) ) {
+ if( get_cabac( &h->cabac, &h->cabac_state[17+2] ) )
+ mb_type += 4 * 2; /* cbp_chroma == 2 */
+ else
+ mb_type += 4 * 1; /* cbp_chroma == 1 */
+ }
+ if( get_cabac( &h->cabac, &h->cabac_state[17+3] ) )
+ mb_type += 2;
+ if( get_cabac( &h->cabac, &h->cabac_state[17+3] ) )
+ mb_type += 1;
+
+ return mb_type;
}
+ } else {
+ /* TODO do others frames types */
+ return -1;
+ }
+}
- if(ret<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
+static int decode_cabac_mb_skip( H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
+ const int mba_xy = mb_xy - 1;
+ const int mbb_xy = mb_xy - s->mb_stride;
+ int ctx = 0;
+
+ if( s->mb_x > 0 && !IS_SKIP( s->current_picture.mb_type[mba_xy] ) )
+ ctx++;
+ if( s->mb_y > 0 && !IS_SKIP( s->current_picture.mb_type[mbb_xy] ) )
+ ctx++;
+
+ if( h->slice_type == P_TYPE || h->slice_type == SP_TYPE)
+ return get_cabac( &h->cabac, &h->cabac_state[11+ctx] );
+ else /* B-frame */
+ return get_cabac( &h->cabac, &h->cabac_state[24+ctx] );
+}
- return -1;
+static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
+ int mode = 0;
+
+ if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
+ return pred_mode;
+
+ if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
+ mode += 1;
+ if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
+ mode += 2;
+ if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
+ mode += 4;
+ if( mode >= pred_mode )
+ return mode + 1;
+ else
+ return mode;
+}
+
+static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
+ const int mba_xy = mb_xy - 1;
+ const int mbb_xy = mb_xy - s->mb_stride;
+
+ int ctx = 0;
+
+ /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
+ if( s->mb_x > 0 && h->chroma_pred_mode_table[mba_xy] != 0 )
+ ctx++;
+
+ if( s->mb_y > 0 && h->chroma_pred_mode_table[mbb_xy] != 0 )
+ ctx++;
+
+ if( get_cabac( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
+ return 0;
+
+ if( get_cabac( &h->cabac, &h->cabac_state[64+3] ) == 0 )
+ return 1;
+ if( get_cabac( &h->cabac, &h->cabac_state[64+3] ) == 0 )
+ return 2;
+ else
+ return 3;
+}
+
+static const uint8_t block_idx_x[16] = {
+ 0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3
+};
+static const uint8_t block_idx_y[16] = {
+ 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3
+};
+static const uint8_t block_idx_xy[4][4] = {
+ { 0, 2, 8, 10},
+ { 1, 3, 9, 11},
+ { 4, 6, 12, 14},
+ { 5, 7, 13, 15}
+};
+
+static int decode_cabac_mb_cbp_luma( H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
+
+ int cbp = 0;
+ int i8x8;
+
+ h->cbp_table[mb_xy] = 0; /* FIXME aaahahahah beurk */
+
+ for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
+ int mba_xy = -1;
+ int mbb_xy = -1;
+ int x, y;
+ int ctx = 0;
+
+ x = block_idx_x[4*i8x8];
+ y = block_idx_y[4*i8x8];
+
+ if( x > 0 )
+ mba_xy = mb_xy;
+ else if( s->mb_x > 0 )
+ mba_xy = mb_xy - 1;
+
+ if( y > 0 )
+ mbb_xy = mb_xy;
+ else if( s->mb_y > 0 )
+ mbb_xy = mb_xy - s->mb_stride;
+
+ /* No need to test for skip as we put 0 for skip block */
+ if( mba_xy >= 0 ) {
+ int i8x8a = block_idx_xy[(x-1)&0x03][y]/4;
+ if( ((h->cbp_table[mba_xy] >> i8x8a)&0x01) == 0 )
+ ctx++;
}
-
- if(++s->mb_x >= s->mb_width){
- s->mb_x=0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- if(++s->mb_y >= s->mb_height){
- tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
- if(get_bits_count(&s->gb) == s->gb.size_in_bits){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+ if( mbb_xy >= 0 ) {
+ int i8x8b = block_idx_xy[x][(y-1)&0x03]/4;
+ if( ((h->cbp_table[mbb_xy] >> i8x8b)&0x01) == 0 )
+ ctx += 2;
+ }
- return 0;
+ if( get_cabac( &h->cabac, &h->cabac_state[73 + ctx] ) ) {
+ cbp |= 1 << i8x8;
+ h->cbp_table[mb_xy] = cbp; /* FIXME aaahahahah beurk */
+ }
+ }
+ return cbp;
+}
+static int decode_cabac_mb_cbp_chroma( H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
+ int ctx;
+ int cbp_a, cbp_b;
+
+ /* No need to test for skip */
+ if( s->mb_x > 0 )
+ cbp_a = (h->cbp_table[mb_xy-1]>>4)&0x03;
+ else
+ cbp_a = -1;
+
+ if( s->mb_y > 0 )
+ cbp_b = (h->cbp_table[mb_xy-s->mb_stride]>>4)&0x03;
+ else
+ cbp_b = -1;
+
+ ctx = 0;
+ if( cbp_a > 0 ) ctx++;
+ if( cbp_b > 0 ) ctx += 2;
+ if( get_cabac( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
+ return 0;
+
+ ctx = 4;
+ if( cbp_a == 2 ) ctx++;
+ if( cbp_b == 2 ) ctx += 2;
+ if( get_cabac( &h->cabac, &h->cabac_state[77 + ctx] ) )
+ return 2;
+ else
+ return 1;
+}
+static int decode_cabac_mb_dqp( H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ int mbn_xy;
+ int ctx = 0;
+ int val = 0;
+
+ if( s->mb_x > 0 )
+ mbn_xy = s->mb_x + s->mb_y*s->mb_stride - 1;
+ else
+ mbn_xy = s->mb_width - 1 + (s->mb_y-1)*s->mb_stride;
+
+ if( mbn_xy >= 0 && h->last_qscale_diff != 0 && ( IS_INTRA16x16(s->current_picture.mb_type[mbn_xy] ) || (h->cbp_table[mbn_xy]&0x3f) ) )
+ ctx++;
+
+ while( get_cabac( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
+ if( ctx < 2 )
+ ctx = 2;
+ else
+ ctx = 3;
+ val++;
+ }
+
+ if( val&0x01 )
+ return (val + 1)/2;
+ else
+ return -(val + 1)/2;
+}
+static int decode_cabac_mb_sub_type( H264Context *h ) {
+ if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
+ return 0; /* 8x8 */
+ if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
+ return 1; /* 8x4 */
+ if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
+ return 2; /* 4x8 */
+ return 3; /* 4x4 */
+}
+
+static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
+ int refa = h->ref_cache[list][scan8[n] - 1];
+ int refb = h->ref_cache[list][scan8[n] - 8];
+ int ref = 0;
+ int ctx = 0;
+
+ if( refa > 0 )
+ ctx++;
+ if( refb > 0 )
+ ctx += 2;
+
+ while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
+ ref++;
+ if( ctx < 4 )
+ ctx = 4;
+ else
+ ctx = 5;
+ }
+ return ref;
+}
+
+static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
+ int amvd = abs( h->mvd_cache[list][scan8[n] - 1][l] ) +
+ abs( h->mvd_cache[list][scan8[n] - 8][l] );
+ int ctxbase = (l == 0) ? 40 : 47;
+ int ctx;
+ int mvd = 0;
+
+ if( amvd < 3 )
+ ctx = 0;
+ else if( amvd > 32 )
+ ctx = 2;
+ else
+ ctx = 1;
+
+ while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase+ctx] ) ) {
+ mvd++;
+ if( ctx < 3 )
+ ctx = 3;
+ else if( ctx < 6 )
+ ctx++;
+ }
+
+ if( mvd >= 9 ) {
+ int k = 3;
+ while( get_cabac_bypass( &h->cabac ) ) {
+ mvd += 1 << k;
+ k++;
+ }
+ while( k-- ) {
+ if( get_cabac_bypass( &h->cabac ) )
+ mvd += 1 << k;
+ }
+ }
+ if( mvd != 0 && get_cabac_bypass( &h->cabac ) )
+ return -mvd;
+ return mvd;
+}
+
+
+static int get_cabac_cbf_ctx( H264Context *h, int cat, int idx ) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
+ int mba_xy = -1;
+ int mbb_xy = -1;
+
+ int nza = -1;
+ int nzb = -1;
+ int ctx = 0;
+
+ if( cat == 0 ) {
+ if( s->mb_x > 0 ) {
+ mba_xy = mb_xy - 1;
+ if( IS_INTRA16x16(s->current_picture.mb_type[mba_xy] ) )
+ nza = h->cbp_table[mba_xy]&0x100;
+ }
+ if( s->mb_y > 0 ) {
+ mbb_xy = mb_xy - s->mb_stride;
+ if( IS_INTRA16x16(s->current_picture.mb_type[mbb_xy] ) )
+ nzb = h->cbp_table[mbb_xy]&0x100;
+ }
+ } else if( cat == 1 || cat == 2 ) {
+ int i8x8a, i8x8b;
+ int x, y;
+
+ x = block_idx_x[idx];
+ y = block_idx_y[idx];
+
+ if( x > 0 )
+ mba_xy = mb_xy;
+ else if( s->mb_x > 0 )
+ mba_xy = mb_xy - 1;
+
+ if( y > 0 )
+ mbb_xy = mb_xy;
+ else if( s->mb_y > 0 )
+ mbb_xy = mb_xy - s->mb_stride;
+
+ /* No need to test for skip */
+ if( mba_xy >= 0 ) {
+ i8x8a = block_idx_xy[(x-1)&0x03][y]/4;
+
+ if( !IS_INTRA_PCM(s->current_picture.mb_type[mba_xy] ) &&
+ ((h->cbp_table[mba_xy]&0x0f)>>i8x8a))
+ nza = h->non_zero_count_cache[scan8[idx] - 1];
+ }
+
+ if( mbb_xy >= 0 ) {
+ i8x8b = block_idx_xy[x][(y-1)&0x03]/4;
+
+ if( !IS_INTRA_PCM(s->current_picture.mb_type[mbb_xy] ) &&
+ ((h->cbp_table[mbb_xy]&0x0f)>>i8x8b))
+ nzb = h->non_zero_count_cache[scan8[idx] - 8];
+ }
+ } else if( cat == 3 ) {
+ if( s->mb_x > 0 ) {
+ mba_xy = mb_xy - 1;
+
+ if( !IS_INTRA_PCM(s->current_picture.mb_type[mba_xy] ) &&
+ (h->cbp_table[mba_xy]&0x30) )
+ nza = (h->cbp_table[mba_xy]>>(6+idx))&0x01;
+ }
+ if( s->mb_y > 0 ) {
+ mbb_xy = mb_xy - s->mb_stride;
+
+ if( !IS_INTRA_PCM(s->current_picture.mb_type[mbb_xy] ) &&
+ (h->cbp_table[mbb_xy]&0x30) )
+ nzb = (h->cbp_table[mbb_xy]>>(6+idx))&0x01;
+ }
+ } else if( cat == 4 ) {
+ int idxc = idx % 4 ;
+ if( idxc == 1 || idxc == 3 )
+ mba_xy = mb_xy;
+ else if( s->mb_x > 0 )
+ mba_xy = mb_xy -1;
+
+ if( idxc == 2 || idxc == 3 )
+ mbb_xy = mb_xy;
+ else if( s->mb_y > 0 )
+ mbb_xy = mb_xy - s->mb_stride;
+
+ if( mba_xy >= 0 &&
+ !IS_INTRA_PCM(s->current_picture.mb_type[mba_xy] ) &&
+ (h->cbp_table[mba_xy]&0x30) == 0x20 )
+ nza = h->non_zero_count_cache[scan8[16+idx] - 1];
+
+ if( mbb_xy >= 0 &&
+ !IS_INTRA_PCM(s->current_picture.mb_type[mbb_xy] ) &&
+ (h->cbp_table[mbb_xy]&0x30) == 0x20 )
+ nzb = h->non_zero_count_cache[scan8[16+idx] - 8];
+ }
+
+ if( ( mba_xy < 0 && IS_INTRA( s->current_picture.mb_type[mb_xy] ) ) ||
+ ( mba_xy >= 0 && IS_INTRA_PCM(s->current_picture.mb_type[mba_xy] ) ) ||
+ nza > 0 )
+ ctx++;
+
+ if( ( mbb_xy < 0 && IS_INTRA( s->current_picture.mb_type[mb_xy] ) ) ||
+ ( mbb_xy >= 0 && IS_INTRA_PCM(s->current_picture.mb_type[mbb_xy] ) ) ||
+ nzb > 0 )
+ ctx += 2;
+
+ return ctx + 4 * cat;
+}
+
+static int decode_cabac_residual( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, int qp, int max_coeff) {
+ const int mb_xy = h->s.mb_x + h->s.mb_y*h->s.mb_stride;
+ const uint16_t *qmul= dequant_coeff[qp];
+ static const int significant_coeff_flag_offset[5] = { 0, 15, 29, 44, 47 };
+ static const int last_significant_coeff_flag_offset[5] = { 0, 15, 29, 44, 47 };
+ static const int coeff_abs_level_m1_offset[5] = { 0, 10, 20, 30, 39 };
+
+ int coeff[16];
+
+ int last = 0;
+ int coeff_count = 0;
+ int nz[16] = {0};
+ int i;
+
+ int abslevel1 = 0;
+ int abslevelgt1 = 0;
+
+ /* cat: 0-> DC 16x16 n = 0
+ * 1-> AC 16x16 n = luma4x4idx
+ * 2-> Luma4x4 n = luma4x4idx
+ * 3-> DC Chroma n = iCbCr
+ * 4-> AC Chroma n = 4 * iCbCr + chroma4x4idx
+ */
+
+ /* read coded block flag */
+ if( get_cabac( &h->cabac, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n ) ] ) == 0 ) {
+ if( cat == 1 || cat == 2 )
+ h->non_zero_count_cache[scan8[n]] = 0;
+ else if( cat == 4 )
+ h->non_zero_count_cache[scan8[16+n]] = 0;
+
+ return 0;
+ }
+
+ while( last < max_coeff - 1 ) {
+ int ctx = FFMIN( last, max_coeff - 2 );
+
+ if( get_cabac( &h->cabac, &h->cabac_state[105+significant_coeff_flag_offset[cat]+ctx] ) == 0 ) {
+ nz[last++] = 0;
+ }
+ else {
+ nz[last++] = 1;
+ coeff_count++;
+ if( get_cabac( &h->cabac, &h->cabac_state[166+last_significant_coeff_flag_offset[cat]+ctx] ) ) {
+ while( last < max_coeff ) {
+ nz[last++] = 0;
+ }
+ break;
+ }
+ }
+ }
+ if( last == max_coeff -1 ) {
+ nz[last++] = 1;
+ coeff_count++;
+ }
+
+ if( cat == 0 && coeff_count > 0 )
+ h->cbp_table[mb_xy] |= 0x100;
+ else if( cat == 1 || cat == 2 )
+ h->non_zero_count_cache[scan8[n]] = coeff_count;
+ else if( cat == 3 && coeff_count > 0 )
+ h->cbp_table[mb_xy] |= 0x40 << n;
+ else if( cat == 4 )
+ h->non_zero_count_cache[scan8[16+n]] = coeff_count;
+
+ for( i = coeff_count - 1; i >= 0; i-- ) {
+ int coeff_abs_m1;
+
+ int ctx = (abslevelgt1 != 0 ? 0 : FFMIN( 4, abslevel1 + 1 )) + coeff_abs_level_m1_offset[cat];
+
+ if( get_cabac( &h->cabac, &h->cabac_state[227+ctx] ) == 0 ) {
+ coeff_abs_m1 = 0;
+ } else {
+ coeff_abs_m1 = 1;
+ ctx = 5 + FFMIN( 4, abslevelgt1 ) + coeff_abs_level_m1_offset[cat];
+ while( coeff_abs_m1 < 14 && get_cabac( &h->cabac, &h->cabac_state[227+ctx] ) ) {
+ coeff_abs_m1++;
+ }
+ }
+
+ if( coeff_abs_m1 >= 14 ) {
+ int j = 0;
+ while( get_cabac_bypass( &h->cabac ) ) {
+ coeff_abs_m1 += 1 << j;
+ j++;
+ }
+
+ while( j-- ) {
+ if( get_cabac_bypass( &h->cabac ) )
+ coeff_abs_m1 += 1 << j ;
+ }
+ }
+ if( get_cabac_bypass( &h->cabac ) )
+ coeff[i] = -1 *( coeff_abs_m1 + 1 );
+ else
+ coeff[i] = coeff_abs_m1 + 1;
+
+ if( coeff_abs_m1 == 0 )
+ abslevel1++;
+ else
+ abslevelgt1++;
+ }
+
+ if( cat == 0 || cat == 3 ) { /* DC */
+ int j;
+ for( i = 0, j = 0; j < coeff_count; i++ ) {
+ if( nz[i] ) {
+ block[scantable[i]] = coeff[j];
+
+ j++;
+ }
+ }
+
+ } else { /* AC */
+ int j;
+ for( i = 0, j = 0; j < coeff_count; i++ ) {
+ if( nz[i] ) {
+ block[scantable[i]] = coeff[j] * qmul[scantable[i]];
+
+ j++;
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ * decodes a macroblock
+ * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
+ */
+static int decode_mb_cabac(H264Context *h) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
+ int mb_type, partition_count, cbp = 0;
+
+ s->dsp.clear_blocks(h->mb); //FIXME avoid if allready clear (move after skip handlong?)
+
+ if( h->slice_type == B_TYPE ) {
+ av_log( h->s.avctx, AV_LOG_ERROR, "B-frame not supported with CABAC\n" );
+ return -1;
+ }
+ if( h->sps.mb_aff ) {
+ av_log( h->s.avctx, AV_LOG_ERROR, "Fields not supported with CABAC\n" );
+ return -1;
+ }
+
+ if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE ) {
+ /* read skip flags */
+ if( decode_cabac_mb_skip( h ) ) {
+ int mx, my;
+
+ /* skip mb */
+ mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
+
+ memset(h->non_zero_count[mb_xy], 0, 16);
+ memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
+#if 0
+ if(h->sps.mb_aff && s->mb_skip_run==0 && (s->mb_y&1)==0){
+ h->mb_field_decoding_flag= get_bits1(&s->gb);
+ }
+ if(h->mb_field_decoding_flag)
+ mb_type|= MB_TYPE_INTERLACED;
+#endif
+
+ fill_caches(h, mb_type); //FIXME check what is needed and what not ...
+ pred_pskip_motion(h, &mx, &my);
+ fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
+ fill_rectangle( h->mvd_cache[0][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
+ fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
+ write_back_motion(h, mb_type);
+
+ s->current_picture.mb_type[mb_xy]= mb_type; //FIXME SKIP type
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
+ h->slice_table[ mb_xy ]= h->slice_num;
+ h->cbp_table[mb_xy] = 0;
+ h->chroma_pred_mode_table[mb_xy] = 0;
+ h->last_qscale_diff = 0;
+
+ h->prev_mb_skiped= 1;
+
+ return 0;
+
+ }
+ }
+ h->prev_mb_skiped = 0;
+
+ if( ( mb_type = decode_cabac_mb_type( h ) ) < 0 ) {
+ av_log( h->s.avctx, AV_LOG_ERROR, "decode_cabac_mb_type failed\n" );
+ return -1;
+ }
+
+ if( h->slice_type == P_TYPE ) {
+ if( mb_type < 5) {
+ partition_count= p_mb_type_info[mb_type].partition_count;
+ mb_type= p_mb_type_info[mb_type].type;
+ } else {
+ mb_type -= 5;
+ goto decode_intra_mb;
+ }
+ } else {
+ assert(h->slice_type == I_TYPE);
+decode_intra_mb:
+ partition_count = 0;
+ cbp= i_mb_type_info[mb_type].cbp;
+ h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
+ mb_type= i_mb_type_info[mb_type].type;
+ }
+#if 0
+ if(h->mb_field_decoding_flag)
+ mb_type |= MB_TYPE_INTERLACED;
+#endif
+
+ s->current_picture.mb_type[mb_xy]= mb_type;
+ h->slice_table[ mb_xy ]= h->slice_num;
+
+ if(IS_INTRA_PCM(mb_type)) {
+ /* TODO */
+ h->cbp_table[mb_xy] = 0xf +4*2;
+ h->chroma_pred_mode_table[mb_xy] = 0;
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
+ return -1;
+ }
+
+ fill_caches(h, mb_type);
+
+ if( IS_INTRA( mb_type ) ) {
+ if( IS_INTRA4x4( mb_type ) ) {
+ int i;
+ for( i = 0; i < 16; i++ ) {
+ int pred = pred_intra_mode( h, i );
+ h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
+
+ //av_log( s->avctx, AV_LOG_ERROR, "i4x4 pred=%d mode=%d\n", pred, h->intra4x4_pred_mode_cache[ scan8[i] ] );
+ }
+ write_back_intra_pred_mode(h);
+ if( check_intra4x4_pred_mode(h) < 0 ) return -1;
+ } else {
+ h->intra16x16_pred_mode= check_intra_pred_mode( h, h->intra16x16_pred_mode );
+ if( h->intra16x16_pred_mode < 0 ) return -1;
+ }
+ h->chroma_pred_mode_table[mb_xy] =
+ h->chroma_pred_mode = decode_cabac_mb_chroma_pre_mode( h );
+
+ h->chroma_pred_mode= check_intra_pred_mode( h, h->chroma_pred_mode );
+ if( h->chroma_pred_mode < 0 ) return -1;
+ } else if( partition_count == 4 ) {
+ int i, j, sub_partition_count[4], list, ref[2][4];
+
+ /* Only P-frame */
+ for( i = 0; i < 4; i++ ) {
+ h->sub_mb_type[i] = decode_cabac_mb_sub_type( h );
+ sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
+ h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
+ }
+
+ for( list = 0; list < 2; list++ ) {
+ if( h->ref_count[list] > 0 ) {
+ for( i = 0; i < 4; i++ ) {
+ if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
+ if( h->ref_count[list] > 1 )
+ ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
+ else
+ ref[list][i] = 0;
+ } else {
+ ref[list][i] = -1;
+ }
+ h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=
+ h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
+ }
+ }
+ }
+
+ for(list=0; list<2; list++){
+
+ for(i=0; i<4; i++){
+ //h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=
+ //h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
+
+ if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
+ const int sub_mb_type= h->sub_mb_type[i];
+ const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
+ for(j=0; j<sub_partition_count[i]; j++){
+ int mpx, mpy;
+ int mx, my;
+ const int index= 4*i + block_width*j;
+ int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
+ int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
+ pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);
+
+ mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );
+ my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );
+ tprintf("final mv:%d %d\n", mx, my);
+
+ if(IS_SUB_8X8(sub_mb_type)){
+ mv_cache[ 0 ][0]= mv_cache[ 1 ][0]=
+ mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
+ mv_cache[ 0 ][1]= mv_cache[ 1 ][1]=
+ mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
+
+ mvd_cache[ 0 ][0]= mvd_cache[ 1 ][0]=
+ mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;
+ mvd_cache[ 0 ][1]= mvd_cache[ 1 ][1]=
+ mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;
+ }else if(IS_SUB_8X4(sub_mb_type)){
+ mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= mx;
+ mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= my;
+
+ mvd_cache[ 0 ][0]= mvd_cache[ 1 ][0]= mx- mpx;
+ mvd_cache[ 0 ][1]= mvd_cache[ 1 ][1]= my - mpy;
+ }else if(IS_SUB_4X8(sub_mb_type)){
+ mv_cache[ 0 ][0]= mv_cache[ 8 ][0]= mx;
+ mv_cache[ 0 ][1]= mv_cache[ 8 ][1]= my;
+
+ mvd_cache[ 0 ][0]= mvd_cache[ 8 ][0]= mx - mpx;
+ mvd_cache[ 0 ][1]= mvd_cache[ 8 ][1]= my - mpy;
+ }else{
+ assert(IS_SUB_4X4(sub_mb_type));
+ mv_cache[ 0 ][0]= mx;
+ mv_cache[ 0 ][1]= my;
+
+ mvd_cache[ 0 ][0]= mx - mpx;
+ mvd_cache[ 0 ][1]= my - mpy;
+ }
+ }
}else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+ uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
+ uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
+ p[0] = p[1] = p[8] = p[9] = 0;
+ pd[0]= pd[1]= pd[8]= pd[9]= 0;
+ }
+ }
+ }
+ } else if( !IS_DIRECT(mb_type) ) {
+ int list, mx, my, i, mpx, mpy;
+ if(IS_16X16(mb_type)){
+ for(list=0; list<2; list++){
+ if(IS_DIR(mb_type, 0, list)){
+ if(h->ref_count[list] > 0 ){
+ const int ref = h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 0 ) : 0;
+ fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
+ }
+ }
+ }
+ for(list=0; list<2; list++){
+ if(IS_DIR(mb_type, 0, list)){
+ pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);
+
+ mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );
+ my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );
+ tprintf("final mv:%d %d\n", mx, my);
+
+ fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
+ fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
+ }
+ }
+ }
+ else if(IS_16X8(mb_type)){
+ for(list=0; list<2; list++){
+ if(h->ref_count[list]>0){
+ for(i=0; i<2; i++){
+ if(IS_DIR(mb_type, i, list)){
+ const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 8*i ) : 0;
+ fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
+ }
+ }
+ }
+ }
+ for(list=0; list<2; list++){
+ for(i=0; i<2; i++){
+ if(IS_DIR(mb_type, i, list)){
+ pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mpx, &mpy);
+ mx = mpx + decode_cabac_mb_mvd( h, list, 8*i, 0 );
+ my = mpy + decode_cabac_mb_mvd( h, list, 8*i, 1 );
+ tprintf("final mv:%d %d\n", mx, my);
+ fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx-mpx,my-mpy), 4);
+ fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
+ }
+ }
+ }
+ }else{
+ assert(IS_8X16(mb_type));
+ for(list=0; list<2; list++){
+ if(h->ref_count[list]>0){
+ for(i=0; i<2; i++){
+ if(IS_DIR(mb_type, i, list)){ //FIXME optimize
+ const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 4*i ) : 0;
+ fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
+ }
+ }
+ }
+ }
+ for(list=0; list<2; list++){
+ for(i=0; i<2; i++){
+ if(IS_DIR(mb_type, i, list)){
+ pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mpx, &mpy);
+ mx = mpx + decode_cabac_mb_mvd( h, list, 4*i, 0 );
+ my = mpy + decode_cabac_mb_mvd( h, list, 4*i, 1 );
+
+ tprintf("final mv:%d %d\n", mx, my);
+ fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
+ fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
+ }
+ }
+ }
+ }
+ }
+
+ if( IS_INTER( mb_type ) ) {
+ h->chroma_pred_mode_table[mb_xy] = 0;
+ write_back_motion( h, mb_type );
+ }
+
+ if( !IS_INTRA16x16( mb_type ) ) {
+ cbp = decode_cabac_mb_cbp_luma( h );
+ cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
+ }
+
+ h->cbp_table[mb_xy] = cbp;
+
+ if( cbp || IS_INTRA16x16( mb_type ) ) {
+ const uint8_t *scan, *dc_scan;
+ int dqp;
+
+ if(IS_INTERLACED(mb_type)){
+ scan= field_scan;
+ dc_scan= luma_dc_field_scan;
+ }else{
+ scan= zigzag_scan;
+ dc_scan= luma_dc_zigzag_scan;
+ }
+
+ h->last_qscale_diff = dqp = decode_cabac_mb_dqp( h );
+ s->qscale += dqp;
+ if(((unsigned)s->qscale) > 51){
+ if(s->qscale<0) s->qscale+= 52;
+ else s->qscale-= 52;
+ }
+ h->chroma_qp = get_chroma_qp(h, s->qscale);
+
+ if( IS_INTRA16x16( mb_type ) ) {
+ int i;
+ //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 DC\n" );
+ if( decode_cabac_residual( h, h->mb, 0, 0, dc_scan, s->qscale, 16) < 0)
+ return -1;
+ if( cbp&15 ) {
+ for( i = 0; i < 16; i++ ) {
+ //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 AC:%d\n", i );
+ if( decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, s->qscale, 15) < 0 )
+ return -1;
+ }
+ } else {
+ fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
+ }
+ } else {
+ int i8x8, i4x4;
+ for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
+ if( cbp & (1<<i8x8) ) {
+ for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
+ const int index = 4*i8x8 + i4x4;
+ //av_log( s->avctx, AV_LOG_ERROR, "Luma4x4: %d\n", index );
+ if( decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, s->qscale, 16) < 0 )
+ return -1;
+ }
+ } else {
+ uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
+ nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
+ }
+ }
+ }
+
+ if( cbp&0x30 ){
+ int c;
+ for( c = 0; c < 2; c++ ) {
+ //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
+ if( decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, h->chroma_qp, 4) < 0)
return -1;
+ }
+ }
+
+ if( cbp&0x20 ) {
+ int c, i;
+ for( c = 0; c < 2; c++ ) {
+ for( i = 0; i < 4; i++ ) {
+ const int index = 16 + 4 * c + i;
+ //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16 );
+ if( decode_cabac_residual(h, h->mb + 16*index, 4, index - 16, scan + 1, h->chroma_qp, 15) < 0)
+ return -1;
}
}
+ } else {
+ uint8_t * const nnz= &h->non_zero_count_cache[0];
+ nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
+ nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
}
-
- if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
- if(get_bits_count(&s->gb) == s->gb.size_in_bits){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+ } else {
+ memset( &h->non_zero_count_cache[8], 0, 8*5 );
+ }
+
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
+ write_back_non_zero_count(h);
+
+ return 0;
+}
+
+
+static void filter_mb_edgev( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
+ int i, d;
+ const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
+ const int alpha = alpha_table[index_a];
+ const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
+
+ for( i = 0; i < 4; i++ ) {
+ if( bS[i] == 0 ) {
+ pix += 4 * stride;
+ continue;
+ }
+
+ if( bS[i] < 4 ) {
+ const int tc0 = tc0_table[index_a][bS[i] - 1];
+ /* 4px edge length */
+ for( d = 0; d < 4; d++ ) {
+ const int p0 = pix[-1];
+ const int p1 = pix[-2];
+ const int p2 = pix[-3];
+ const int q0 = pix[0];
+ const int q1 = pix[1];
+ const int q2 = pix[2];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+ int tc = tc0;
+ int i_delta;
+
+ if( ABS( p2 - p0 ) < beta ) {
+ pix[-2] = p1 + clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
+ tc++;
+ }
+ if( ABS( q2 - q0 ) < beta ) {
+ pix[1] = q1 + clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
+ tc++;
+ }
+
+ i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
+ pix[-1] = clip_uint8( p0 + i_delta ); /* p0' */
+ pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
+ }
+ pix += stride;
+ }
+ }else{
+ /* 4px edge length */
+ for( d = 0; d < 4; d++ ) {
+ const int p0 = pix[-1];
+ const int p1 = pix[-2];
+ const int p2 = pix[-3];
+
+ const int q0 = pix[0];
+ const int q1 = pix[1];
+ const int q2 = pix[2];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+
+ if(ABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
+ if( ABS( p2 - p0 ) < beta)
+ {
+ const int p3 = pix[-4];
+ /* p0', p1', p2' */
+ pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
+ pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
+ pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
+ } else {
+ /* p0' */
+ pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
+ }
+ if( ABS( q2 - q0 ) < beta)
+ {
+ const int q3 = pix[3];
+ /* q0', q1', q2' */
+ pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
+ pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
+ pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
+ } else {
+ /* q0' */
+ pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
+ }
+ }else{
+ /* p0', q0' */
+ pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
+ pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
+ }
+ }
+ pix += stride;
+ }
+ }
+ }
+}
+static void filter_mb_edgecv( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
+ int i, d;
+ const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
+ const int alpha = alpha_table[index_a];
+ const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
+
+ for( i = 0; i < 4; i++ ) {
+ if( bS[i] == 0 ) {
+ pix += 2 * stride;
+ continue;
+ }
+
+ if( bS[i] < 4 ) {
+ const int tc = tc0_table[index_a][bS[i] - 1] + 1;
+ /* 2px edge length (because we use same bS than the one for luma) */
+ for( d = 0; d < 2; d++ ){
+ const int p0 = pix[-1];
+ const int p1 = pix[-2];
+ const int q0 = pix[0];
+ const int q1 = pix[1];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+ const int i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
+
+ pix[-1] = clip_uint8( p0 + i_delta ); /* p0' */
+ pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
+ }
+ pix += stride;
+ }
+ }else{
+ /* 2px edge length (because we use same bS than the one for luma) */
+ for( d = 0; d < 2; d++ ){
+ const int p0 = pix[-1];
+ const int p1 = pix[-2];
+ const int q0 = pix[0];
+ const int q1 = pix[1];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+
+ pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */
+ pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */
+ }
+ pix += stride;
+ }
+ }
+ }
+}
+
+static void filter_mb_edgeh( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
+ int i, d;
+ const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
+ const int alpha = alpha_table[index_a];
+ const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
+ const int pix_next = stride;
+
+ for( i = 0; i < 4; i++ ) {
+ if( bS[i] == 0 ) {
+ pix += 4;
+ continue;
+ }
+
+ if( bS[i] < 4 ) {
+ const int tc0 = tc0_table[index_a][bS[i] - 1];
+ /* 4px edge length */
+ for( d = 0; d < 4; d++ ) {
+ const int p0 = pix[-1*pix_next];
+ const int p1 = pix[-2*pix_next];
+ const int p2 = pix[-3*pix_next];
+ const int q0 = pix[0];
+ const int q1 = pix[1*pix_next];
+ const int q2 = pix[2*pix_next];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+
+ int tc = tc0;
+ int i_delta;
+
+ if( ABS( p2 - p0 ) < beta ) {
+ pix[-2*pix_next] = p1 + clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
+ tc++;
+ }
+ if( ABS( q2 - q0 ) < beta ) {
+ pix[pix_next] = q1 + clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
+ tc++;
+ }
+
+ i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
+ pix[-pix_next] = clip_uint8( p0 + i_delta ); /* p0' */
+ pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
+ }
+ pix++;
+ }
+ }else{
+ /* 4px edge length */
+ for( d = 0; d < 4; d++ ) {
+ const int p0 = pix[-1*pix_next];
+ const int p1 = pix[-2*pix_next];
+ const int p2 = pix[-3*pix_next];
+ const int q0 = pix[0];
+ const int q1 = pix[1*pix_next];
+ const int q2 = pix[2*pix_next];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+
+ const int p3 = pix[-4*pix_next];
+ const int q3 = pix[ 3*pix_next];
+
+ if(ABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
+ if( ABS( p2 - p0 ) < beta) {
+ /* p0', p1', p2' */
+ pix[-1*pix_next] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
+ pix[-2*pix_next] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
+ pix[-3*pix_next] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
+ } else {
+ /* p0' */
+ pix[-1*pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
+ }
+ if( ABS( q2 - q0 ) < beta) {
+ /* q0', q1', q2' */
+ pix[0*pix_next] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
+ pix[1*pix_next] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
+ pix[2*pix_next] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
+ } else {
+ /* q0' */
+ pix[0*pix_next] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
+ }
+ }else{
+ /* p0', q0' */
+ pix[-1*pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
+ pix[ 0*pix_next] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
+ }
+ }
+ pix++;
+ }
+ }
+ }
+}
+
+static void filter_mb_edgech( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
+ int i, d;
+ const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
+ const int alpha = alpha_table[index_a];
+ const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
+ const int pix_next = stride;
+
+ for( i = 0; i < 4; i++ )
+ {
+ if( bS[i] == 0 ) {
+ pix += 2;
+ continue;
+ }
+
+ if( bS[i] < 4 ) {
+ int tc = tc0_table[index_a][bS[i] - 1] + 1;
+ /* 2px edge length (see deblocking_filter_edgecv) */
+ for( d = 0; d < 2; d++ ) {
+ const int p0 = pix[-1*pix_next];
+ const int p1 = pix[-2*pix_next];
+ const int q0 = pix[0];
+ const int q1 = pix[1*pix_next];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+
+ int i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
+
+ pix[-pix_next] = clip_uint8( p0 + i_delta ); /* p0' */
+ pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
+ }
+ pix++;
+ }
+ }else{
+ /* 2px edge length (see deblocking_filter_edgecv) */
+ for( d = 0; d < 2; d++ ) {
+ const int p0 = pix[-1*pix_next];
+ const int p1 = pix[-2*pix_next];
+ const int q0 = pix[0];
+ const int q1 = pix[1*pix_next];
+
+ if( ABS( p0 - q0 ) < alpha &&
+ ABS( p1 - p0 ) < beta &&
+ ABS( q1 - q0 ) < beta ) {
+
+ pix[-pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */
+ pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */
+ }
+ pix++;
+ }
+ }
+ }
+}
+
+static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr) {
+ MpegEncContext * const s = &h->s;
+ const int mb_xy= mb_x + mb_y*s->mb_stride;
+ int linesize, uvlinesize;
+ int dir;
+
+ /* FIXME Implement deblocking filter for field MB */
+ if( h->sps.mb_aff ) {
+ return;
+ }
+ linesize = s->linesize;
+ uvlinesize = s->uvlinesize;
+
+ /* dir : 0 -> vertical edge, 1 -> horizontal edge */
+ for( dir = 0; dir < 2; dir++ )
+ {
+ int start = 0;
+ int edge;
+
+ /* test picture boundary */
+ if( ( dir == 0 && mb_x == 0 ) || ( dir == 1 && mb_y == 0 ) ) {
+ start = 1;
+ }
+ /* FIXME test slice boundary */
+ if( h->deblocking_filter == 2 ) {
+ }
+
+ /* Calculate bS */
+ for( edge = start; edge < 4; edge++ ) {
+ /* mbn_xy: neighbour macroblock (how that works for field ?) */
+ int mbn_xy = edge > 0 ? mb_xy : ( dir == 0 ? mb_xy -1 : mb_xy - s->mb_stride );
+ int bS[4];
+ int qp;
+
+ if( IS_INTRA( s->current_picture.mb_type[mb_xy] ) ||
+ IS_INTRA( s->current_picture.mb_type[mbn_xy] ) ) {
+ bS[0] = bS[1] = bS[2] = bS[3] = ( edge == 0 ? 4 : 3 );
+ } else {
+ int i;
+ for( i = 0; i < 4; i++ ) {
+ int x = dir == 0 ? edge : i;
+ int y = dir == 0 ? i : edge;
+ int b_idx= 8 + 4 + x + 8*y;
+ int bn_idx= b_idx - (dir ? 8:1);
+
+ if( h->non_zero_count_cache[b_idx] != 0 ||
+ h->non_zero_count_cache[bn_idx] != 0 ) {
+ bS[i] = 2;
+ }
+ else if( h->slice_type == P_TYPE ) {
+ if( h->ref_cache[0][b_idx] != h->ref_cache[0][bn_idx] ||
+ ABS( h->mv_cache[0][b_idx][0] - h->mv_cache[0][bn_idx][0] ) >= 4 ||
+ ABS( h->mv_cache[0][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= 4 )
+ bS[i] = 1;
+ else
+ bS[i] = 0;
+ }
+ else {
+ /* FIXME Add support for B frame */
+ return;
+ }
+ }
+
+ if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
+ continue;
+ }
+ /* Filter edge */
+ qp = ( s->qscale + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
+ if( dir == 0 ) {
+ filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );
+ if( (edge&1) == 0 ) {
+ int chroma_qp = ( h->chroma_qp +
+ get_chroma_qp( h, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
+ filter_mb_edgecv( h, &img_cb[2*edge], uvlinesize, bS, chroma_qp );
+ filter_mb_edgecv( h, &img_cr[2*edge], uvlinesize, bS, chroma_qp );
+ }
+ } else {
+ filter_mb_edgeh( h, &img_y[4*edge*linesize], linesize, bS, qp );
+ if( (edge&1) == 0 ) {
+ int chroma_qp = ( h->chroma_qp +
+ get_chroma_qp( h, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
+ filter_mb_edgech( h, &img_cb[2*edge*uvlinesize], uvlinesize, bS, chroma_qp );
+ filter_mb_edgech( h, &img_cr[2*edge*uvlinesize], uvlinesize, bS, chroma_qp );
+ }
+ }
+ }
+ }
+}
+
+static int decode_slice(H264Context *h){
+ MpegEncContext * const s = &h->s;
+ const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
+
+ s->mb_skip_run= -1;
+
+ if( h->pps.cabac ) {
+ int i;
+
+ /* realign */
+ align_get_bits( &s->gb );
+
+ /* init cabac */
+ ff_init_cabac_states( &h->cabac, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64 );
+ ff_init_cabac_decoder( &h->cabac,
+ s->gb.buffer + get_bits_count(&s->gb)/8,
+ ( s->gb.size_in_bits - get_bits_count(&s->gb) ) );
+ /* calculate pre-state */
+ for( i= 0; i < 399; i++ ) {
+ int pre;
+ if( h->slice_type == I_TYPE )
+ pre = clip( ((cabac_context_init_I[i][0] * s->qscale) >>4 ) + cabac_context_init_I[i][1], 1, 126 );
+ else
+ pre = clip( ((cabac_context_init_PB[h->cabac_init_idc][i][0] * s->qscale) >>4 ) + cabac_context_init_PB[h->cabac_init_idc][i][1], 1, 126 );
+
+ if( pre <= 63 )
+ h->cabac_state[i] = 2 * ( 63 - pre ) + 0;
+ else
+ h->cabac_state[i] = 2 * ( pre - 64 ) + 1;
+ }
+
+ for(;;){
+ int ret = decode_mb_cabac(h);
+ int eos = get_cabac_terminate( &h->cabac ); /* End of Slice flag */
+
+ hl_decode_mb(h);
+
+ /* XXX: useless as decode_mb_cabac it doesn't support that ... */
+ if( ret >= 0 && h->sps.mb_aff ) { //FIXME optimal? or let mb_decode decode 16x32 ?
+ s->mb_y++;
+
+ ret = decode_mb_cabac(h);
+ eos = get_cabac_terminate( &h->cabac );
+
+ hl_decode_mb(h);
+ s->mb_y--;
+ }
+
+ if( ret < 0 ) {
+ av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
+ return -1;
+ }
+
+ if( ++s->mb_x >= s->mb_width ) {
+ s->mb_x = 0;
+ ff_draw_horiz_band(s, 16*s->mb_y, 16);
+ if( ++s->mb_y >= s->mb_height ) {
+ tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
+ }
+ }
+
+ if( eos || s->mb_y >= s->mb_height ) {
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
return 0;
- }else{
+ }
+#if 0
+ /* TODO test over-reading in cabac code */
+ else if( read too much in h->cabac ) {
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
+ return -1;
+ }
+#endif
+ }
+
+ } else {
+ for(;;){
+ int ret = decode_mb_cavlc(h);
+
+ hl_decode_mb(h);
+
+ if(ret>=0 && h->sps.mb_aff){ //FIXME optimal? or let mb_decode decode 16x32 ?
+ s->mb_y++;
+ ret = decode_mb_cavlc(h);
+
+ hl_decode_mb(h);
+ s->mb_y--;
+ }
+
+ if(ret<0){
+ av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
return -1;
}
+
+ if(++s->mb_x >= s->mb_width){
+ s->mb_x=0;
+ ff_draw_horiz_band(s, 16*s->mb_y, 16);
+ if(++s->mb_y >= s->mb_height){
+ tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
+
+ if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+
+ return 0;
+ }else{
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+
+ return -1;
+ }
+ }
+ }
+
+ if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
+ if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+
+ return 0;
+ }else{
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
+
+ return -1;
+ }
+ }
}
}
-#endif
+
#if 0
for(;s->mb_y < s->mb_height; s->mb_y++){
for(;s->mb_x < s->mb_width; s->mb_x++){
@@ -4022,7 +5581,7 @@ static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
buf_index += consumed;
- if(h->nal_ref_idc < s->hurry_up)
+ if( s->hurry_up == 1 && h->nal_ref_idc == 0 )
continue;
switch(h->nal_unit_type){
@@ -4035,7 +5594,7 @@ static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
s->data_partitioning = 0;
if(decode_slice_header(h) < 0) return -1;
- if(h->redundant_pic_count==0)
+ if(h->redundant_pic_count==0 && s->hurry_up < 5 )
decode_slice(h);
break;
case NAL_DPA:
@@ -4054,7 +5613,7 @@ static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
init_get_bits(&h->inter_gb, ptr, bit_length);
h->inter_gb_ptr= &h->inter_gb;
- if(h->redundant_pic_count==0 && h->intra_gb_ptr && s->data_partitioning)
+ if(h->redundant_pic_count==0 && h->intra_gb_ptr && s->data_partitioning && s->hurry_up < 5 )
decode_slice(h);
break;
case NAL_SEI:
@@ -4099,6 +5658,7 @@ static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
assert(h->mmco_index==0);
ff_er_frame_end(s);
+
MPV_frame_end(s);
return buf_index;
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 17:51:21 +0000