X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_04%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Fh264.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_04%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Fh264.c;h=0000000000000000000000000000000000000000;hb=6fa8f2f38d4b0b35f8539bf94e27ae27015c7689;hp=96bba6266a706d00c7161ac922ba7b5768f1bb29;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavcodec/h264.c b/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavcodec/h264.c deleted file mode 100644 index 96bba62..0000000 --- a/synfig-core/tags/synfig_0_61_04/synfig-core/src/modules/mod_libavcodec/libavcodec/h264.c +++ /dev/null @@ -1,4420 +0,0 @@ -/* - * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder - * Copyright (c) 2003 Michael Niedermayer - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/** - * @file h264.c - * H.264 / AVC / MPEG4 part10 codec. - * @author Michael Niedermayer - */ - -#include "common.h" -#include "dsputil.h" -#include "avcodec.h" -#include "mpegvideo.h" -#include "h264data.h" -#include "golomb.h" - -#undef NDEBUG -#include - -#define interlaced_dct interlaced_dct_is_a_bad_name -#define mb_intra mb_intra_isnt_initalized_see_mb_type - -#define LUMA_DC_BLOCK_INDEX 25 -#define CHROMA_DC_BLOCK_INDEX 26 - -#define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8 -#define COEFF_TOKEN_VLC_BITS 8 -#define TOTAL_ZEROS_VLC_BITS 9 -#define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3 -#define RUN_VLC_BITS 3 -#define RUN7_VLC_BITS 6 - -#define MAX_SPS_COUNT 32 -#define MAX_PPS_COUNT 256 - -#define MAX_MMCO_COUNT 66 - -/** - * Sequence parameter set - */ -typedef struct SPS{ - - int profile_idc; - int level_idc; - int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4 - int poc_type; ///< pic_order_cnt_type - int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4 - int delta_pic_order_always_zero_flag; - int offset_for_non_ref_pic; - int offset_for_top_to_bottom_field; - int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle - int ref_frame_count; ///< num_ref_frames - int gaps_in_frame_num_allowed_flag; - int mb_width; ///< frame_width_in_mbs_minus1 + 1 - int mb_height; ///< frame_height_in_mbs_minus1 + 1 - int frame_mbs_only_flag; - int mb_aff; ///no) do we need that? - - int slice_num; - uint8_t *slice_table_base; - uint8_t *slice_table; ///< slice_table_base + mb_stride + 1 - int slice_type; - int slice_type_fixed; - - //interlacing specific flags - int mb_field_decoding_flag; - - int sub_mb_type[4]; - - //POC stuff - int poc_lsb; - int poc_msb; - int delta_poc_bottom; - int delta_poc[2]; - int frame_num; - int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0 - int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0 - int frame_num_offset; ///< for POC type 2 - int prev_frame_num_offset; ///< for POC type 2 - int prev_frame_num; ///< frame_num of the last pic for POC type 1/2 - - /** - * frame_num for frames or 2*frame_num for field pics. - */ - int curr_pic_num; - - /** - * max_frame_num or 2*max_frame_num for field pics. - */ - int max_pic_num; - - //Weighted pred stuff - int luma_log2_weight_denom; - int chroma_log2_weight_denom; - int luma_weight[2][16]; - int luma_offset[2][16]; - int chroma_weight[2][16][2]; - int chroma_offset[2][16][2]; - - //deblock - int disable_deblocking_filter_idc; - int slice_alpha_c0_offset_div2; - int slice_beta_offset_div2; - - int redundant_pic_count; - - int direct_spatial_mv_pred; - - /** - * num_ref_idx_l0/1_active_minus1 + 1 - */ - int ref_count[2];// FIXME split for AFF - Picture *short_ref[16]; - Picture *long_ref[16]; - Picture default_ref_list[2][32]; - Picture ref_list[2][32]; //FIXME size? - Picture field_ref_list[2][32]; //FIXME size? - - /** - * memory management control operations buffer. - */ - MMCO mmco[MAX_MMCO_COUNT]; - int mmco_index; - - int long_ref_count; ///< number of actual long term references - int short_ref_count; ///< number of actual short term references - - //data partitioning - GetBitContext intra_gb; - GetBitContext inter_gb; - GetBitContext *intra_gb_ptr; - GetBitContext *inter_gb_ptr; - - DCTELEM mb[16*24] __align8; -}H264Context; - -static VLC coeff_token_vlc[4]; -static VLC chroma_dc_coeff_token_vlc; - -static VLC total_zeros_vlc[15]; -static VLC chroma_dc_total_zeros_vlc[3]; - -static VLC run_vlc[6]; -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 inline uint32_t pack16to32(int a, int b){ -#ifdef WORDS_BIGENDIAN - return (b&0xFFFF) + (a<<16); -#else - return (a&0xFFFF) + (b<<16); -#endif -} - -/** - * fill a rectangle. - * @param h height of the recatangle, should be a constant - * @param w width of the recatangle, should be a constant - * @param size the size of val (1 or 4), should be a constant - */ -static inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ //FIXME ensure this IS inlined - uint8_t *p= (uint8_t*)vp; - assert(size==1 || size==4); - - w *= size; - stride *= size; - -//FIXME check what gcc generates for 64 bit on x86 and possible write a 32 bit ver of it - if(w==2 && h==2){ - *(uint16_t*)(p + 0)= - *(uint16_t*)(p + stride)= size==4 ? val : val*0x0101; - }else if(w==2 && h==4){ - *(uint16_t*)(p + 0*stride)= - *(uint16_t*)(p + 1*stride)= - *(uint16_t*)(p + 2*stride)= - *(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101; - }else if(w==4 && h==1){ - *(uint32_t*)(p + 0*stride)= size==4 ? val : val*0x01010101; - }else if(w==4 && h==2){ - *(uint32_t*)(p + 0*stride)= - *(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101; - }else if(w==4 && h==4){ - *(uint32_t*)(p + 0*stride)= - *(uint32_t*)(p + 1*stride)= - *(uint32_t*)(p + 2*stride)= - *(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101; - }else if(w==8 && h==1){ - *(uint32_t*)(p + 0)= - *(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101; - }else if(w==8 && h==2){ - *(uint32_t*)(p + 0 + 0*stride)= - *(uint32_t*)(p + 4 + 0*stride)= - *(uint32_t*)(p + 0 + 1*stride)= - *(uint32_t*)(p + 4 + 1*stride)= size==4 ? val : val*0x01010101; - }else if(w==8 && h==4){ - *(uint64_t*)(p + 0*stride)= - *(uint64_t*)(p + 1*stride)= - *(uint64_t*)(p + 2*stride)= - *(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL; - }else if(w==16 && h==2){ - *(uint64_t*)(p + 0+0*stride)= - *(uint64_t*)(p + 8+0*stride)= - *(uint64_t*)(p + 0+1*stride)= - *(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL; - }else if(w==16 && h==4){ - *(uint64_t*)(p + 0+0*stride)= - *(uint64_t*)(p + 8+0*stride)= - *(uint64_t*)(p + 0+1*stride)= - *(uint64_t*)(p + 8+1*stride)= - *(uint64_t*)(p + 0+2*stride)= - *(uint64_t*)(p + 8+2*stride)= - *(uint64_t*)(p + 0+3*stride)= - *(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL; - }else - assert(0); -} - -static inline void fill_caches(H264Context *h, int mb_type){ - MpegEncContext * const s = &h->s; - const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; - int topleft_xy, top_xy, topright_xy, left_xy[2]; - int topleft_type, top_type, topright_type, left_type[2]; - int left_block[4]; - int i; - - //wow what a mess, why didnt they simplify the interlacing&intra stuff, i cant imagine that these complex rules are worth it - - if(h->sps.mb_aff){ - //FIXME - topleft_xy = 0; /* avoid warning */ - top_xy = 0; /* avoid warning */ - topright_xy = 0; /* avoid warning */ - }else{ - topleft_xy = mb_xy-1 - s->mb_stride; - top_xy = mb_xy - s->mb_stride; - topright_xy= mb_xy+1 - s->mb_stride; - left_xy[0] = mb_xy-1; - left_xy[1] = mb_xy-1; - left_block[0]= 0; - left_block[1]= 1; - left_block[2]= 2; - left_block[3]= 3; - } - - topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0; - top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0; - topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0; - left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0; - left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0; - - if(IS_INTRA(mb_type)){ - h->topleft_samples_available= - h->top_samples_available= - h->left_samples_available= 0xFFFF; - h->topright_samples_available= 0xEEEA; - - if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){ - h->topleft_samples_available= 0xB3FF; - h->top_samples_available= 0x33FF; - h->topright_samples_available= 0x26EA; - } - for(i=0; i<2; i++){ - if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){ - h->topleft_samples_available&= 0xDF5F; - h->left_samples_available&= 0x5F5F; - } - } - - if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred)) - h->topleft_samples_available&= 0x7FFF; - - if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred)) - h->topright_samples_available&= 0xFBFF; - - if(IS_INTRA4x4(mb_type)){ - if(IS_INTRA4x4(top_type)){ - h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4]; - h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5]; - h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6]; - h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3]; - }else{ - int pred; - if(IS_INTRA16x16(top_type) || (IS_INTER(top_type) && !h->pps.constrained_intra_pred)) - pred= 2; - else{ - pred= -1; - } - h->intra4x4_pred_mode_cache[4+8*0]= - h->intra4x4_pred_mode_cache[5+8*0]= - h->intra4x4_pred_mode_cache[6+8*0]= - h->intra4x4_pred_mode_cache[7+8*0]= pred; - } - for(i=0; i<2; i++){ - if(IS_INTRA4x4(left_type[i])){ - h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]]; - h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]]; - }else{ - int pred; - if(IS_INTRA16x16(left_type[i]) || (IS_INTER(left_type[i]) && !h->pps.constrained_intra_pred)) - pred= 2; - else{ - pred= -1; - } - h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= - h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred; - } - } - } - } - - -/* -0 . T T. T T T T -1 L . .L . . . . -2 L . .L . . . . -3 . T TL . . . . -4 L . .L . . . . -5 L . .. . . . . -*/ -//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec) - if(top_type){ - h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][0]; - h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][1]; - h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][2]; - h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3]; - - h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][7]; - h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8]; - - h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][10]; - h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11]; - }else{ - h->non_zero_count_cache[4+8*0]= - h->non_zero_count_cache[5+8*0]= - h->non_zero_count_cache[6+8*0]= - h->non_zero_count_cache[7+8*0]= - - h->non_zero_count_cache[1+8*0]= - h->non_zero_count_cache[2+8*0]= - - h->non_zero_count_cache[1+8*3]= - h->non_zero_count_cache[2+8*3]= 64; - } - - if(left_type[0]){ - h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][6]; - h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][5]; - h->non_zero_count_cache[0+8*1]= h->non_zero_count[left_xy[0]][9]; //FIXME left_block - h->non_zero_count_cache[0+8*4]= h->non_zero_count[left_xy[0]][12]; - }else{ - h->non_zero_count_cache[3+8*1]= - h->non_zero_count_cache[3+8*2]= - h->non_zero_count_cache[0+8*1]= - h->non_zero_count_cache[0+8*4]= 64; - } - - if(left_type[1]){ - h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[1]][4]; - h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[1]][3]; - h->non_zero_count_cache[0+8*2]= h->non_zero_count[left_xy[1]][8]; - h->non_zero_count_cache[0+8*5]= h->non_zero_count[left_xy[1]][11]; - }else{ - h->non_zero_count_cache[3+8*3]= - h->non_zero_count_cache[3+8*4]= - h->non_zero_count_cache[0+8*2]= - h->non_zero_count_cache[0+8*5]= 64; - } - -#if 1 - if(IS_INTER(mb_type)){ - int list; - for(list=0; list<2; list++){ - if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){ - /*if(!h->mv_cache_clean[list]){ - memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all? - memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t)); - h->mv_cache_clean[list]= 1; - }*/ - continue; //FIXME direct mode ... - } - h->mv_cache_clean[list]= 0; - - if(IS_INTER(topleft_type)){ - const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride; - const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride; - *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy]; - h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy]; - }else{ - *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0; - h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; - } - - if(IS_INTER(top_type)){ - const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride; - const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride; - *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0]; - *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1]; - *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2]; - *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3]; - h->ref_cache[list][scan8[0] + 0 - 1*8]= - h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0]; - h->ref_cache[list][scan8[0] + 2 - 1*8]= - h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1]; - }else{ - *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]= - *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]= - *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]= - *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0; - *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101; - } - - if(IS_INTER(topright_type)){ - const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride; - const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride; - *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy]; - h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy]; - }else{ - *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0; - h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; - } - - //FIXME unify cleanup or sth - if(IS_INTER(left_type[0])){ - const int b_xy= h->mb2b_xy[left_xy[0]] + 3; - const int b8_xy= h->mb2b8_xy[left_xy[0]] + 1; - *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]]; - *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1]]; - h->ref_cache[list][scan8[0] - 1 + 0*8]= - h->ref_cache[list][scan8[0] - 1 + 1*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0]>>1)]; - }else{ - *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 0*8]= - *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 1*8]= 0; - h->ref_cache[list][scan8[0] - 1 + 0*8]= - h->ref_cache[list][scan8[0] - 1 + 1*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE; - } - - if(IS_INTER(left_type[1])){ - const int b_xy= h->mb2b_xy[left_xy[1]] + 3; - const int b8_xy= h->mb2b8_xy[left_xy[1]] + 1; - *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[2]]; - *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[3]]; - h->ref_cache[list][scan8[0] - 1 + 2*8]= - h->ref_cache[list][scan8[0] - 1 + 3*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[2]>>1)]; - }else{ - *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 2*8]= - *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 3*8]= 0; - h->ref_cache[list][scan8[0] - 1 + 2*8]= - h->ref_cache[list][scan8[0] - 1 + 3*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE; - } - - h->ref_cache[list][scan8[5 ]+1] = - h->ref_cache[list][scan8[7 ]+1] = - h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewher else) - h->ref_cache[list][scan8[4 ]] = - h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE; - *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]= - *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]= - *(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; - } -//FIXME - - } -#endif -} - -static inline void write_back_intra_pred_mode(H264Context *h){ - MpegEncContext * const s = &h->s; - const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; - - h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1]; - h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2]; - h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3]; - h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4]; - h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4]; - h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4]; - h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4]; -} - -/** - * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks. - */ -static inline int check_intra4x4_pred_mode(H264Context *h){ - MpegEncContext * const s = &h->s; - static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0}; - static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED}; - int i; - - if(!(h->top_samples_available&0x8000)){ - for(i=0; i<4; i++){ - int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ]; - if(status<0){ - fprintf(stderr, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y); - return -1; - } else if(status){ - h->intra4x4_pred_mode_cache[scan8[0] + i]= status; - } - } - } - - if(!(h->left_samples_available&0x8000)){ - for(i=0; i<4; i++){ - int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ]; - if(status<0){ - fprintf(stderr, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y); - return -1; - } else if(status){ - h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status; - } - } - } - - return 0; -} //FIXME cleanup like next - -/** - * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks. - */ -static inline int check_intra_pred_mode(H264Context *h, int mode){ - MpegEncContext * const s = &h->s; - static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1}; - static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8}; - - if(!(h->top_samples_available&0x8000)){ - mode= top[ mode ]; - if(mode<0){ - fprintf(stderr, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y); - return -1; - } - } - - if(!(h->left_samples_available&0x8000)){ - mode= left[ mode ]; - if(mode<0){ - fprintf(stderr, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y); - return -1; - } - } - - return mode; -} - -/** - * gets the predicted intra4x4 prediction mode. - */ -static inline int pred_intra_mode(H264Context *h, int n){ - const int index8= scan8[n]; - const int left= h->intra4x4_pred_mode_cache[index8 - 1]; - const int top = h->intra4x4_pred_mode_cache[index8 - 8]; - const int min= FFMIN(left, top); - - tprintf("mode:%d %d min:%d\n", left ,top, min); - - if(min<0) return DC_PRED; - else return min; -} - -static inline void write_back_non_zero_count(H264Context *h){ - MpegEncContext * const s = &h->s; - const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; - - h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[4+8*4]; - h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[5+8*4]; - h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[6+8*4]; - h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4]; - h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[7+8*3]; - h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[7+8*2]; - h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[7+8*1]; - - h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[1+8*2]; - h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2]; - h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[2+8*1]; - - h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[1+8*5]; - h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5]; - h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[2+8*4]; -} - -/** - * gets the predicted number of non zero coefficients. - * @param n block index - */ -static inline int pred_non_zero_count(H264Context *h, int n){ - const int index8= scan8[n]; - const int left= h->non_zero_count_cache[index8 - 1]; - const int top = h->non_zero_count_cache[index8 - 8]; - int i= left + top; - - if(i<64) i= (i+1)>>1; - - tprintf("pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31); - - return i&31; -} - -static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){ - const int topright_ref= h->ref_cache[list][ i - 8 + part_width ]; - - if(topright_ref != PART_NOT_AVAILABLE){ - *C= h->mv_cache[list][ i - 8 + part_width ]; - return topright_ref; - }else{ - tprintf("topright MV not available\n"); - - *C= h->mv_cache[list][ i - 8 - 1 ]; - return h->ref_cache[list][ i - 8 - 1 ]; - } -} - -/** - * gets the predicted MV. - * @param n the block index - * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4) - * @param mx the x component of the predicted motion vector - * @param my the y component of the predicted motion vector - */ -static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){ - const int index8= scan8[n]; - const int top_ref= h->ref_cache[list][ index8 - 8 ]; - const int left_ref= h->ref_cache[list][ index8 - 1 ]; - const int16_t * const A= h->mv_cache[list][ index8 - 1 ]; - const int16_t * const B= h->mv_cache[list][ index8 - 8 ]; - const int16_t * C; - int diagonal_ref, match_count; - - assert(part_width==1 || part_width==2 || part_width==4); - -/* mv_cache - B . . A T T T T - U . . L . . , . - U . . L . . . . - U . . L . . , . - . . . L . . . . -*/ - - diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width); - match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref); - if(match_count > 1){ //most common - *mx= mid_pred(A[0], B[0], C[0]); - *my= mid_pred(A[1], B[1], C[1]); - }else if(match_count==1){ - if(left_ref==ref){ - *mx= A[0]; - *my= A[1]; - }else if(top_ref==ref){ - *mx= B[0]; - *my= B[1]; - }else{ - *mx= C[0]; - *my= C[1]; - } - }else{ - if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){ - *mx= A[0]; - *my= A[1]; - }else{ - *mx= mid_pred(A[0], B[0], C[0]); - *my= mid_pred(A[1], B[1], C[1]); - } - } - - tprintf("pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list); -} - -/** - * gets the directionally predicted 16x8 MV. - * @param n the block index - * @param mx the x component of the predicted motion vector - * @param my the y component of the predicted motion vector - */ -static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ - if(n==0){ - const int top_ref= h->ref_cache[list][ scan8[0] - 8 ]; - const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ]; - - tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list); - - if(top_ref == ref){ - *mx= B[0]; - *my= B[1]; - return; - } - }else{ - const int left_ref= h->ref_cache[list][ scan8[8] - 1 ]; - const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ]; - - tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list); - - if(left_ref == ref){ - *mx= A[0]; - *my= A[1]; - return; - } - } - - //RARE - pred_motion(h, n, 4, list, ref, mx, my); -} - -/** - * gets the directionally predicted 8x16 MV. - * @param n the block index - * @param mx the x component of the predicted motion vector - * @param my the y component of the predicted motion vector - */ -static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ - if(n==0){ - const int left_ref= h->ref_cache[list][ scan8[0] - 1 ]; - const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ]; - - tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list); - - if(left_ref == ref){ - *mx= A[0]; - *my= A[1]; - return; - } - }else{ - const int16_t * C; - int diagonal_ref; - - diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2); - - tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list); - - if(diagonal_ref == ref){ - *mx= C[0]; - *my= C[1]; - return; - } - } - - //RARE - pred_motion(h, n, 2, list, ref, mx, my); -} - -static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){ - const int top_ref = h->ref_cache[0][ scan8[0] - 8 ]; - const int left_ref= h->ref_cache[0][ scan8[0] - 1 ]; - - tprintf("pred_pskip: (%d) (%d) at %2d %2d", top_ref, left_ref, h->s.mb_x, h->s.mb_y); - - if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE - || (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0) - || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){ - - *mx = *my = 0; - return; - } - - pred_motion(h, 0, 4, 0, 0, mx, my); - - return; -} - -static inline void write_back_motion(H264Context *h, int mb_type){ - MpegEncContext * const s = &h->s; - const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride; - const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride; - int list; - - for(list=0; list<2; list++){ - int y; - if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){ - if(1){ //FIXME skip or never read if mb_type doesnt use it - for(y=0; y<4; y++){ - *(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; - } - 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; - } - } - continue; //FIXME direct mode ... - } - - for(y=0; y<4; y++){ - *(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]; - } - 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]; - } - } -} - -/** - * Decodes a network abstraction layer unit. - * @param consumed is the number of bytes used as input - * @param length is the length of the array - * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp ttailing? - * @returns decoded bytes, might be src+1 if no escapes - */ -static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){ - int i, si, di; - uint8_t *dst; - -// src[0]&0x80; //forbidden bit - h->nal_ref_idc= src[0]>>5; - h->nal_unit_type= src[0]&0x1F; - - src++; length--; -#if 0 - for(i=0; i0 && src[i-1]==0) i--; - if(i+2=length-1){ //no escaped 0 - *dst_length= length; - *consumed= length+1; //+1 for the header - return src; - } - - h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length); - dst= h->rbsp_buffer; - -//printf("deoding esc\n"); - si=di=0; - while(si=0); - assert(dst_length>0); - - dst[0]= (h->nal_ref_idc<<5) + h->nal_unit_type; - - if(length==0) return 1; - - escape_count= 0; - for(i=0; i0 && src[i-1]==0) - i--; - if(i+2 dst_length) - return -1; - - //this should be damn rare (hopefully) - - h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length + escape_count); - temp= h->rbsp_buffer; -//printf("encoding esc\n"); - - si= 0; - di= 0; - while(si < length){ - if(si+2>=1; - } - return 0; -} - -/** - * idct tranforms the 16 dc values and dequantize them. - * @param qp quantization parameter - */ -static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp){ - const int qmul= dequant_coeff[qp][0]; -#define stride 16 - int i; - int temp[16]; //FIXME check if this is a good idea - static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride}; - static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride}; - -//memset(block, 64, 2*256); -//return; - for(i=0; i<4; i++){ - const int offset= y_offset[i]; - const int z0= block[offset+stride*0] + block[offset+stride*4]; - const int z1= block[offset+stride*0] - block[offset+stride*4]; - const int z2= block[offset+stride*1] - block[offset+stride*5]; - const int z3= block[offset+stride*1] + block[offset+stride*5]; - - temp[4*i+0]= z0+z3; - temp[4*i+1]= z1+z2; - temp[4*i+2]= z1-z2; - temp[4*i+3]= z0-z3; - } - - for(i=0; i<4; i++){ - const int offset= x_offset[i]; - const int z0= temp[4*0+i] + temp[4*2+i]; - const int z1= temp[4*0+i] - temp[4*2+i]; - const int z2= temp[4*1+i] - temp[4*3+i]; - const int z3= temp[4*1+i] + temp[4*3+i]; - - block[stride*0 +offset]= ((z0 + z3)*qmul + 2)>>2; //FIXME think about merging this into decode_resdual - block[stride*2 +offset]= ((z1 + z2)*qmul + 2)>>2; - block[stride*8 +offset]= ((z1 - z2)*qmul + 2)>>2; - block[stride*10+offset]= ((z0 - z3)*qmul + 2)>>2; - } -} - -/** - * dct tranforms the 16 dc values. - * @param qp quantization parameter ??? FIXME - */ -static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){ -// const int qmul= dequant_coeff[qp][0]; - int i; - int temp[16]; //FIXME check if this is a good idea - static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride}; - static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride}; - - for(i=0; i<4; i++){ - const int offset= y_offset[i]; - const int z0= block[offset+stride*0] + block[offset+stride*4]; - const int z1= block[offset+stride*0] - block[offset+stride*4]; - const int z2= block[offset+stride*1] - block[offset+stride*5]; - const int z3= block[offset+stride*1] + block[offset+stride*5]; - - temp[4*i+0]= z0+z3; - temp[4*i+1]= z1+z2; - temp[4*i+2]= z1-z2; - temp[4*i+3]= z0-z3; - } - - for(i=0; i<4; i++){ - const int offset= x_offset[i]; - const int z0= temp[4*0+i] + temp[4*2+i]; - const int z1= temp[4*0+i] - temp[4*2+i]; - const int z2= temp[4*1+i] - temp[4*3+i]; - const int z3= temp[4*1+i] + temp[4*3+i]; - - block[stride*0 +offset]= (z0 + z3)>>1; - block[stride*2 +offset]= (z1 + z2)>>1; - block[stride*8 +offset]= (z1 - z2)>>1; - block[stride*10+offset]= (z0 - z3)>>1; - } -} -#undef xStride -#undef stride - -static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp){ - const int qmul= dequant_coeff[qp][0]; - const int stride= 16*2; - const int xStride= 16; - int a,b,c,d,e; - - a= block[stride*0 + xStride*0]; - b= block[stride*0 + xStride*1]; - c= block[stride*1 + xStride*0]; - d= block[stride*1 + xStride*1]; - - e= a-b; - a= a+b; - b= c-d; - c= c+d; - - block[stride*0 + xStride*0]= ((a+c)*qmul + 0)>>1; - block[stride*0 + xStride*1]= ((e+b)*qmul + 0)>>1; - block[stride*1 + xStride*0]= ((a-c)*qmul + 0)>>1; - block[stride*1 + xStride*1]= ((e-b)*qmul + 0)>>1; -} - -static void chroma_dc_dct_c(DCTELEM *block){ - const int stride= 16*2; - const int xStride= 16; - int a,b,c,d,e; - - a= block[stride*0 + xStride*0]; - b= block[stride*0 + xStride*1]; - c= block[stride*1 + xStride*0]; - d= block[stride*1 + xStride*1]; - - e= a-b; - a= a+b; - b= c-d; - c= c+d; - - block[stride*0 + xStride*0]= (a+c); - block[stride*0 + xStride*1]= (e+b); - block[stride*1 + xStride*0]= (a-c); - block[stride*1 + xStride*1]= (e-b); -} - -/** - * gets the chroma qp. - */ -static inline int get_chroma_qp(H264Context *h, int qscale){ - - return chroma_qp[clip(qscale + h->pps.chroma_qp_index_offset, 0, 51)]; -} - - -/** - * - */ -static void h264_add_idct_c(uint8_t *dst, DCTELEM *block, int stride){ - int i; - 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]; - 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); - - 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; - block[3 + 4*i]= z0 - z3; - } - - 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); - - dst[i + 0*stride]= cm[ dst[i + 0*stride] + ((z0 + z3) >> 6) ]; - dst[i + 1*stride]= cm[ dst[i + 1*stride] + ((z1 + z2) >> 6) ]; - 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 -} - -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 - - for(i=0; i<4; i++){ - const int d0= src1[0 + i*stride] - src2[0 + i*stride]; - const int d1= src1[1 + i*stride] - src2[1 + i*stride]; - const int d2= src1[2 + i*stride] - src2[2 + i*stride]; - const int d3= src1[3 + i*stride] - src2[3 + i*stride]; - const int z0= d0 + d3; - const int z3= d0 - d3; - const int z1= d1 + d2; - const int z2= d1 - d2; - - block[0 + 4*i]= z0 + z1; - block[1 + 4*i]= 2*z3 + z2; - block[2 + 4*i]= z0 - z1; - block[3 + 4*i]= z3 - 2*z2; - } - - for(i=0; i<4; i++){ - const int z0= block[0*4 + i] + block[3*4 + i]; - const int z3= block[0*4 + i] - block[3*4 + i]; - const int z1= block[1*4 + i] + block[2*4 + i]; - const int z2= block[1*4 + i] - block[2*4 + i]; - - block[0*4 + i]= z0 + z1; - block[1*4 + i]= 2*z3 + z2; - block[2*4 + i]= z0 - z1; - block[3*4 + i]= z3 - 2*z2; - } -} - -//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) -static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int seperate_dc){ - int i; - const int * const quant_table= quant_coeff[qscale]; - const int bias= intra ? (1<dc_threshold2){ - if(level>0){ - level= (dc_bias + level)>>(QUANT_SHIFT-2); - block[0]= level; - }else{ - level= (dc_bias - level)>>(QUANT_SHIFT-2); - block[0]= -level; - } -// last_non_zero = i; - }else{ - block[0]=0; - } - }else{ - const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6; - const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1; - const unsigned int dc_threshold2= (dc_threshold1<<1); - - int level= block[0]*quant_table[0]; - if(((unsigned)(level+dc_threshold1))>dc_threshold2){ - if(level>0){ - level= (dc_bias + level)>>(QUANT_SHIFT+1); - block[0]= level; - }else{ - level= (dc_bias - level)>>(QUANT_SHIFT+1); - block[0]= -level; - } -// last_non_zero = i; - }else{ - block[0]=0; - } - } - last_non_zero= 0; - i=1; - }else{ - last_non_zero= -1; - i=0; - } - - for(; i<16; i++){ - const int j= scantable[i]; - int level= block[j]*quant_table[j]; - -// if( bias+level >= (1<<(QMAT_SHIFT - 3)) -// || bias-level >= (1<<(QMAT_SHIFT - 3))){ - if(((unsigned)(level+threshold1))>threshold2){ - if(level>0){ - level= (bias + level)>>QUANT_SHIFT; - block[j]= level; - }else{ - level= (bias - level)>>QUANT_SHIFT; - block[j]= -level; - } - last_non_zero = i; - }else{ - block[j]=0; - } - } - - return last_non_zero; -} - -static void pred4x4_vertical_c(uint8_t *src, uint8_t *topright, int stride){ - const uint32_t a= ((uint32_t*)(src-stride))[0]; - ((uint32_t*)(src+0*stride))[0]= a; - ((uint32_t*)(src+1*stride))[0]= a; - ((uint32_t*)(src+2*stride))[0]= a; - ((uint32_t*)(src+3*stride))[0]= a; -} - -static void pred4x4_horizontal_c(uint8_t *src, uint8_t *topright, int stride){ - ((uint32_t*)(src+0*stride))[0]= src[-1+0*stride]*0x01010101; - ((uint32_t*)(src+1*stride))[0]= src[-1+1*stride]*0x01010101; - ((uint32_t*)(src+2*stride))[0]= src[-1+2*stride]*0x01010101; - ((uint32_t*)(src+3*stride))[0]= src[-1+3*stride]*0x01010101; -} - -static void pred4x4_dc_c(uint8_t *src, uint8_t *topright, int stride){ - const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] - + src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 4) >>3; - - ((uint32_t*)(src+0*stride))[0]= - ((uint32_t*)(src+1*stride))[0]= - ((uint32_t*)(src+2*stride))[0]= - ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101; -} - -static void pred4x4_left_dc_c(uint8_t *src, uint8_t *topright, int stride){ - const int dc= ( src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 2) >>2; - - ((uint32_t*)(src+0*stride))[0]= - ((uint32_t*)(src+1*stride))[0]= - ((uint32_t*)(src+2*stride))[0]= - ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101; -} - -static void pred4x4_top_dc_c(uint8_t *src, uint8_t *topright, int stride){ - const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] + 2) >>2; - - ((uint32_t*)(src+0*stride))[0]= - ((uint32_t*)(src+1*stride))[0]= - ((uint32_t*)(src+2*stride))[0]= - ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101; -} - -static void pred4x4_128_dc_c(uint8_t *src, uint8_t *topright, int stride){ - ((uint32_t*)(src+0*stride))[0]= - ((uint32_t*)(src+1*stride))[0]= - ((uint32_t*)(src+2*stride))[0]= - ((uint32_t*)(src+3*stride))[0]= 128U*0x01010101U; -} - - -#define LOAD_TOP_RIGHT_EDGE\ - const int t4= topright[0];\ - const int t5= topright[1];\ - const int t6= topright[2];\ - const int t7= topright[3];\ - -#define LOAD_LEFT_EDGE\ - const int l0= src[-1+0*stride];\ - const int l1= src[-1+1*stride];\ - const int l2= src[-1+2*stride];\ - const int l3= src[-1+3*stride];\ - -#define LOAD_TOP_EDGE\ - const int t0= src[ 0-1*stride];\ - const int t1= src[ 1-1*stride];\ - const int t2= src[ 2-1*stride];\ - const int t3= src[ 3-1*stride];\ - -static void pred4x4_down_right_c(uint8_t *src, uint8_t *topright, int stride){ - const int lt= src[-1-1*stride]; - LOAD_TOP_EDGE - LOAD_LEFT_EDGE - - src[0+3*stride]=(l3 + 2*l2 + l1 + 2)>>2; - src[0+2*stride]= - src[1+3*stride]=(l2 + 2*l1 + l0 + 2)>>2; - src[0+1*stride]= - src[1+2*stride]= - src[2+3*stride]=(l1 + 2*l0 + lt + 2)>>2; - src[0+0*stride]= - src[1+1*stride]= - src[2+2*stride]= - src[3+3*stride]=(l0 + 2*lt + t0 + 2)>>2; - src[1+0*stride]= - src[2+1*stride]= - src[3+2*stride]=(lt + 2*t0 + t1 + 2)>>2; - src[2+0*stride]= - src[3+1*stride]=(t0 + 2*t1 + t2 + 2)>>2; - src[3+0*stride]=(t1 + 2*t2 + t3 + 2)>>2; -} - -static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){ - LOAD_TOP_EDGE - LOAD_TOP_RIGHT_EDGE -// LOAD_LEFT_EDGE - - src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2; - src[1+0*stride]= - src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2; - src[2+0*stride]= - src[1+1*stride]= - src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2; - src[3+0*stride]= - src[2+1*stride]= - src[1+2*stride]= - src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2; - src[3+1*stride]= - src[2+2*stride]= - src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2; - src[3+2*stride]= - src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2; - src[3+3*stride]=(t6 + 3*t7 + 2)>>2; -} - -static void pred4x4_vertical_right_c(uint8_t *src, uint8_t *topright, int stride){ - const int lt= src[-1-1*stride]; - LOAD_TOP_EDGE - LOAD_LEFT_EDGE - const __attribute__((unused)) int unu= l3; - - src[0+0*stride]= - src[1+2*stride]=(lt + t0 + 1)>>1; - src[1+0*stride]= - src[2+2*stride]=(t0 + t1 + 1)>>1; - src[2+0*stride]= - src[3+2*stride]=(t1 + t2 + 1)>>1; - src[3+0*stride]=(t2 + t3 + 1)>>1; - src[0+1*stride]= - src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2; - src[1+1*stride]= - src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2; - src[2+1*stride]= - src[3+3*stride]=(t0 + 2*t1 + t2 + 2)>>2; - src[3+1*stride]=(t1 + 2*t2 + t3 + 2)>>2; - src[0+2*stride]=(lt + 2*l0 + l1 + 2)>>2; - src[0+3*stride]=(l0 + 2*l1 + l2 + 2)>>2; -} - -static void pred4x4_vertical_left_c(uint8_t *src, uint8_t *topright, int stride){ - LOAD_TOP_EDGE - LOAD_TOP_RIGHT_EDGE - const __attribute__((unused)) int unu= t7; - - src[0+0*stride]=(t0 + t1 + 1)>>1; - src[1+0*stride]= - src[0+2*stride]=(t1 + t2 + 1)>>1; - src[2+0*stride]= - src[1+2*stride]=(t2 + t3 + 1)>>1; - src[3+0*stride]= - src[2+2*stride]=(t3 + t4+ 1)>>1; - src[3+2*stride]=(t4 + t5+ 1)>>1; - src[0+1*stride]=(t0 + 2*t1 + t2 + 2)>>2; - src[1+1*stride]= - src[0+3*stride]=(t1 + 2*t2 + t3 + 2)>>2; - src[2+1*stride]= - src[1+3*stride]=(t2 + 2*t3 + t4 + 2)>>2; - src[3+1*stride]= - src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2; - src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2; -} - -static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){ - LOAD_LEFT_EDGE - - src[0+0*stride]=(l0 + l1 + 1)>>1; - src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2; - src[2+0*stride]= - src[0+1*stride]=(l1 + l2 + 1)>>1; - src[3+0*stride]= - src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2; - src[2+1*stride]= - src[0+2*stride]=(l2 + l3 + 1)>>1; - src[3+1*stride]= - src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2; - src[3+2*stride]= - src[1+3*stride]= - src[0+3*stride]= - src[2+2*stride]= - src[2+3*stride]= - src[3+3*stride]=l3; -} - -static void pred4x4_horizontal_down_c(uint8_t *src, uint8_t *topright, int stride){ - const int lt= src[-1-1*stride]; - LOAD_TOP_EDGE - LOAD_LEFT_EDGE - const __attribute__((unused)) int unu= t3; - - src[0+0*stride]= - src[2+1*stride]=(lt + l0 + 1)>>1; - src[1+0*stride]= - src[3+1*stride]=(l0 + 2*lt + t0 + 2)>>2; - src[2+0*stride]=(lt + 2*t0 + t1 + 2)>>2; - src[3+0*stride]=(t0 + 2*t1 + t2 + 2)>>2; - src[0+1*stride]= - src[2+2*stride]=(l0 + l1 + 1)>>1; - src[1+1*stride]= - src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2; - src[0+2*stride]= - src[2+3*stride]=(l1 + l2+ 1)>>1; - src[1+2*stride]= - src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2; - src[0+3*stride]=(l2 + l3 + 1)>>1; - src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2; -} - -static void pred16x16_vertical_c(uint8_t *src, int stride){ - int i; - const uint32_t a= ((uint32_t*)(src-stride))[0]; - const uint32_t b= ((uint32_t*)(src-stride))[1]; - const uint32_t c= ((uint32_t*)(src-stride))[2]; - const uint32_t d= ((uint32_t*)(src-stride))[3]; - - for(i=0; i<16; i++){ - ((uint32_t*)(src+i*stride))[0]= a; - ((uint32_t*)(src+i*stride))[1]= b; - ((uint32_t*)(src+i*stride))[2]= c; - ((uint32_t*)(src+i*stride))[3]= d; - } -} - -static void pred16x16_horizontal_c(uint8_t *src, int stride){ - int i; - - for(i=0; i<16; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= - ((uint32_t*)(src+i*stride))[2]= - ((uint32_t*)(src+i*stride))[3]= src[-1+i*stride]*0x01010101; - } -} - -static void pred16x16_dc_c(uint8_t *src, int stride){ - int i, dc=0; - - for(i=0;i<16; i++){ - dc+= src[-1+i*stride]; - } - - for(i=0;i<16; i++){ - dc+= src[i-stride]; - } - - dc= 0x01010101*((dc + 16)>>5); - - for(i=0; i<16; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= - ((uint32_t*)(src+i*stride))[2]= - ((uint32_t*)(src+i*stride))[3]= dc; - } -} - -static void pred16x16_left_dc_c(uint8_t *src, int stride){ - int i, dc=0; - - for(i=0;i<16; i++){ - dc+= src[-1+i*stride]; - } - - dc= 0x01010101*((dc + 8)>>4); - - for(i=0; i<16; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= - ((uint32_t*)(src+i*stride))[2]= - ((uint32_t*)(src+i*stride))[3]= dc; - } -} - -static void pred16x16_top_dc_c(uint8_t *src, int stride){ - int i, dc=0; - - for(i=0;i<16; i++){ - dc+= src[i-stride]; - } - dc= 0x01010101*((dc + 8)>>4); - - for(i=0; i<16; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= - ((uint32_t*)(src+i*stride))[2]= - ((uint32_t*)(src+i*stride))[3]= dc; - } -} - -static void pred16x16_128_dc_c(uint8_t *src, int stride){ - int i; - - for(i=0; i<16; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= - ((uint32_t*)(src+i*stride))[2]= - ((uint32_t*)(src+i*stride))[3]= 0x01010101U*128U; - } -} - -static inline void pred16x16_plane_compat_c(uint8_t *src, int stride, const int svq3){ - int i, j, k; - int a; - uint8_t *cm = cropTbl + MAX_NEG_CROP; - const uint8_t * const src0 = src+7-stride; - const uint8_t *src1 = src+8*stride-1; - const uint8_t *src2 = src1-2*stride; // == src+6*stride-1; - int H = src0[1] - src0[-1]; - int V = src1[0] - src2[ 0]; - for(k=2; k<=8; ++k) { - src1 += stride; src2 -= stride; - H += k*(src0[k] - src0[-k]); - V += k*(src1[0] - src2[ 0]); - } - if(svq3){ - H = ( 5*(H/4) ) / 16; - V = ( 5*(V/4) ) / 16; - - /* required for 100% accuracy */ - i = H; H = V; V = i; - }else{ - H = ( 5*H+32 ) >> 6; - V = ( 5*V+32 ) >> 6; - } - - a = 16*(src1[0] + src2[16] + 1) - 7*(V+H); - for(j=16; j>0; --j) { - int b = a; - a += V; - for(i=-16; i<0; i+=4) { - src[16+i] = cm[ (b ) >> 5 ]; - src[17+i] = cm[ (b+ H) >> 5 ]; - src[18+i] = cm[ (b+2*H) >> 5 ]; - src[19+i] = cm[ (b+3*H) >> 5 ]; - b += 4*H; - } - src += stride; - } -} - -static void pred16x16_plane_c(uint8_t *src, int stride){ - pred16x16_plane_compat_c(src, stride, 0); -} - -static void pred8x8_vertical_c(uint8_t *src, int stride){ - int i; - const uint32_t a= ((uint32_t*)(src-stride))[0]; - const uint32_t b= ((uint32_t*)(src-stride))[1]; - - for(i=0; i<8; i++){ - ((uint32_t*)(src+i*stride))[0]= a; - ((uint32_t*)(src+i*stride))[1]= b; - } -} - -static void pred8x8_horizontal_c(uint8_t *src, int stride){ - int i; - - for(i=0; i<8; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= src[-1+i*stride]*0x01010101; - } -} - -static void pred8x8_128_dc_c(uint8_t *src, int stride){ - int i; - - for(i=0; i<4; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U; - } - for(i=4; i<8; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U; - } -} - -static void pred8x8_left_dc_c(uint8_t *src, int stride){ - int i; - int dc0, dc2; - - dc0=dc2=0; - for(i=0;i<4; i++){ - dc0+= src[-1+i*stride]; - dc2+= src[-1+(i+4)*stride]; - } - dc0= 0x01010101*((dc0 + 2)>>2); - dc2= 0x01010101*((dc2 + 2)>>2); - - for(i=0; i<4; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= dc0; - } - for(i=4; i<8; i++){ - ((uint32_t*)(src+i*stride))[0]= - ((uint32_t*)(src+i*stride))[1]= dc2; - } -} - -static void pred8x8_top_dc_c(uint8_t *src, int stride){ - int i; - int dc0, dc1; - - dc0=dc1=0; - for(i=0;i<4; i++){ - dc0+= src[i-stride]; - dc1+= src[4+i-stride]; - } - dc0= 0x01010101*((dc0 + 2)>>2); - dc1= 0x01010101*((dc1 + 2)>>2); - - for(i=0; i<4; i++){ - ((uint32_t*)(src+i*stride))[0]= dc0; - ((uint32_t*)(src+i*stride))[1]= dc1; - } - for(i=4; i<8; i++){ - ((uint32_t*)(src+i*stride))[0]= dc0; - ((uint32_t*)(src+i*stride))[1]= dc1; - } -} - - -static void pred8x8_dc_c(uint8_t *src, int stride){ - int i; - int dc0, dc1, dc2, dc3; - - dc0=dc1=dc2=0; - for(i=0;i<4; i++){ - dc0+= src[-1+i*stride] + src[i-stride]; - dc1+= src[4+i-stride]; - dc2+= src[-1+(i+4)*stride]; - } - dc3= 0x01010101*((dc1 + dc2 + 4)>>3); - dc0= 0x01010101*((dc0 + 4)>>3); - dc1= 0x01010101*((dc1 + 2)>>2); - dc2= 0x01010101*((dc2 + 2)>>2); - - for(i=0; i<4; i++){ - ((uint32_t*)(src+i*stride))[0]= dc0; - ((uint32_t*)(src+i*stride))[1]= dc1; - } - for(i=4; i<8; i++){ - ((uint32_t*)(src+i*stride))[0]= dc2; - ((uint32_t*)(src+i*stride))[1]= dc3; - } -} - -static void pred8x8_plane_c(uint8_t *src, int stride){ - int j, k; - int a; - uint8_t *cm = cropTbl + MAX_NEG_CROP; - const uint8_t * const src0 = src+3-stride; - const uint8_t *src1 = src+4*stride-1; - const uint8_t *src2 = src1-2*stride; // == src+2*stride-1; - int H = src0[1] - src0[-1]; - int V = src1[0] - src2[ 0]; - for(k=2; k<=4; ++k) { - src1 += stride; src2 -= stride; - H += k*(src0[k] - src0[-k]); - V += k*(src1[0] - src2[ 0]); - } - H = ( 17*H+16 ) >> 5; - V = ( 17*V+16 ) >> 5; - - a = 16*(src1[0] + src2[8]+1) - 3*(V+H); - for(j=8; j>0; --j) { - int b = a; - a += V; - src[0] = cm[ (b ) >> 5 ]; - src[1] = cm[ (b+ H) >> 5 ]; - src[2] = cm[ (b+2*H) >> 5 ]; - src[3] = cm[ (b+3*H) >> 5 ]; - src[4] = cm[ (b+4*H) >> 5 ]; - src[5] = cm[ (b+5*H) >> 5 ]; - src[6] = cm[ (b+6*H) >> 5 ]; - src[7] = cm[ (b+7*H) >> 5 ]; - src += stride; - } -} - -static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list, - uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, - int src_x_offset, int src_y_offset, - qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){ - MpegEncContext * const s = &h->s; - const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8; - const int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8; - const int luma_xy= (mx&3) + ((my&3)<<2); - uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*s->linesize; - uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*s->uvlinesize; - uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*s->uvlinesize; - int extra_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; //FIXME increase edge?, IMHO not worth it - int extra_height= extra_width; - int emu=0; - const int full_mx= mx>>2; - const int full_my= my>>2; - - assert(pic->data[0]); - - if(mx&7) extra_width -= 3; - if(my&7) extra_height -= 3; - - if( full_mx < 0-extra_width - || full_my < 0-extra_height - || full_mx + 16/*FIXME*/ > s->width + extra_width - || full_my + 16/*FIXME*/ > s->height + extra_height){ - ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*s->linesize, s->linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, s->width, s->height); - src_y= s->edge_emu_buffer + 2 + 2*s->linesize; - emu=1; - } - - qpix_op[luma_xy](dest_y, src_y, s->linesize); //FIXME try variable height perhaps? - if(!square){ - qpix_op[luma_xy](dest_y + delta, src_y + delta, s->linesize); - } - - if(s->flags&CODEC_FLAG_GRAY) return; - - if(emu){ - ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1); - src_cb= s->edge_emu_buffer; - } - chroma_op(dest_cb, src_cb, s->uvlinesize, chroma_height, mx&7, my&7); - - if(emu){ - ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1); - src_cr= s->edge_emu_buffer; - } - chroma_op(dest_cr, src_cr, s->uvlinesize, chroma_height, mx&7, my&7); -} - -static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta, - uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, - int x_offset, int y_offset, - qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, - qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, - int list0, int list1){ - MpegEncContext * const s = &h->s; - qpel_mc_func *qpix_op= qpix_put; - h264_chroma_mc_func chroma_op= chroma_put; - - dest_y += 2*x_offset + 2*y_offset*s-> linesize; - dest_cb += x_offset + y_offset*s->uvlinesize; - dest_cr += x_offset + y_offset*s->uvlinesize; - x_offset += 8*s->mb_x; - y_offset += 8*s->mb_y; - - if(list0){ - Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ]; - mc_dir_part(h, ref, n, square, chroma_height, delta, 0, - dest_y, dest_cb, dest_cr, x_offset, y_offset, - qpix_op, chroma_op); - - qpix_op= qpix_avg; - chroma_op= chroma_avg; - } - - if(list1){ - Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ]; - mc_dir_part(h, ref, n, square, chroma_height, delta, 1, - dest_y, dest_cb, dest_cr, x_offset, y_offset, - qpix_op, chroma_op); - } -} - -static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, - qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put), - qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg)){ - MpegEncContext * const s = &h->s; - const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; - const int mb_type= s->current_picture.mb_type[mb_xy]; - - assert(IS_INTER(mb_type)); - - if(IS_16X16(mb_type)){ - mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0, - qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0], - IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); - }else if(IS_16X8(mb_type)){ - mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0, - qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], - IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); - mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4, - qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], - IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); - }else if(IS_8X16(mb_type)){ - mc_part(h, 0, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 0, 0, - qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], - IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); - mc_part(h, 4, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 4, 0, - qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], - IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); - }else{ - int i; - - assert(IS_8X8(mb_type)); - - for(i=0; i<4; i++){ - const int sub_mb_type= h->sub_mb_type[i]; - const int n= 4*i; - int x_offset= (i&1)<<2; - int y_offset= (i&2)<<1; - - if(IS_SUB_8X8(sub_mb_type)){ - mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset, - qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], - IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); - }else if(IS_SUB_8X4(sub_mb_type)){ - mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset, - qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], - IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); - mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2, - qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], - IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); - }else if(IS_SUB_4X8(sub_mb_type)){ - mc_part(h, n , 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset, - qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], - IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); - mc_part(h, n+1, 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset, - qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], - IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); - }else{ - int j; - assert(IS_SUB_4X4(sub_mb_type)); - for(j=0; j<4; j++){ - int sub_x_offset= x_offset + 2*(j&1); - int sub_y_offset= y_offset + (j&2); - mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset, - qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], - IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); - } - } - } - } -} - -static void decode_init_vlc(H264Context *h){ - static int done = 0; - - if (!done) { - int i; - done = 1; - - init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5, - &chroma_dc_coeff_token_len [0], 1, 1, - &chroma_dc_coeff_token_bits[0], 1, 1); - - for(i=0; i<4; i++){ - init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17, - &coeff_token_len [i][0], 1, 1, - &coeff_token_bits[i][0], 1, 1); - } - - for(i=0; i<3; i++){ - init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4, - &chroma_dc_total_zeros_len [i][0], 1, 1, - &chroma_dc_total_zeros_bits[i][0], 1, 1); - } - for(i=0; i<15; i++){ - init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16, - &total_zeros_len [i][0], 1, 1, - &total_zeros_bits[i][0], 1, 1); - } - - for(i=0; i<6; i++){ - init_vlc(&run_vlc[i], RUN_VLC_BITS, 7, - &run_len [i][0], 1, 1, - &run_bits[i][0], 1, 1); - } - init_vlc(&run7_vlc, RUN7_VLC_BITS, 16, - &run_len [6][0], 1, 1, - &run_bits[6][0], 1, 1); - } -} - -/** - * Sets the intra prediction function pointers. - */ -static void init_pred_ptrs(H264Context *h){ -// MpegEncContext * const s = &h->s; - - h->pred4x4[VERT_PRED ]= pred4x4_vertical_c; - h->pred4x4[HOR_PRED ]= pred4x4_horizontal_c; - h->pred4x4[DC_PRED ]= pred4x4_dc_c; - h->pred4x4[DIAG_DOWN_LEFT_PRED ]= pred4x4_down_left_c; - h->pred4x4[DIAG_DOWN_RIGHT_PRED]= pred4x4_down_right_c; - h->pred4x4[VERT_RIGHT_PRED ]= pred4x4_vertical_right_c; - h->pred4x4[HOR_DOWN_PRED ]= pred4x4_horizontal_down_c; - h->pred4x4[VERT_LEFT_PRED ]= pred4x4_vertical_left_c; - h->pred4x4[HOR_UP_PRED ]= pred4x4_horizontal_up_c; - h->pred4x4[LEFT_DC_PRED ]= pred4x4_left_dc_c; - h->pred4x4[TOP_DC_PRED ]= pred4x4_top_dc_c; - h->pred4x4[DC_128_PRED ]= pred4x4_128_dc_c; - - h->pred8x8[DC_PRED8x8 ]= pred8x8_dc_c; - h->pred8x8[VERT_PRED8x8 ]= pred8x8_vertical_c; - h->pred8x8[HOR_PRED8x8 ]= pred8x8_horizontal_c; - h->pred8x8[PLANE_PRED8x8 ]= pred8x8_plane_c; - h->pred8x8[LEFT_DC_PRED8x8]= pred8x8_left_dc_c; - h->pred8x8[TOP_DC_PRED8x8 ]= pred8x8_top_dc_c; - h->pred8x8[DC_128_PRED8x8 ]= pred8x8_128_dc_c; - - h->pred16x16[DC_PRED8x8 ]= pred16x16_dc_c; - h->pred16x16[VERT_PRED8x8 ]= pred16x16_vertical_c; - h->pred16x16[HOR_PRED8x8 ]= pred16x16_horizontal_c; - h->pred16x16[PLANE_PRED8x8 ]= pred16x16_plane_c; - h->pred16x16[LEFT_DC_PRED8x8]= pred16x16_left_dc_c; - h->pred16x16[TOP_DC_PRED8x8 ]= pred16x16_top_dc_c; - h->pred16x16[DC_128_PRED8x8 ]= pred16x16_128_dc_c; -} - -static void free_tables(H264Context *h){ - av_freep(&h->intra4x4_pred_mode); - av_freep(&h->non_zero_count); - av_freep(&h->slice_table_base); - h->slice_table= NULL; - - av_freep(&h->mb2b_xy); - av_freep(&h->mb2b8_xy); -} - -/** - * allocates tables. - * needs widzh/height - */ -static int alloc_tables(H264Context *h){ - MpegEncContext * const s = &h->s; - const int big_mb_num= s->mb_stride * (s->mb_height+1); - 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)) - - memset(h->slice_table_base, -1, big_mb_num * sizeof(uint8_t)); - h->slice_table= h->slice_table_base + s->mb_stride + 1; - - CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint16_t)); - CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint16_t)); - for(y=0; ymb_height; y++){ - for(x=0; xmb_width; x++){ - const int mb_xy= x + y*s->mb_stride; - const int b_xy = 4*x + 4*y*h->b_stride; - const int b8_xy= 2*x + 2*y*h->b8_stride; - - h->mb2b_xy [mb_xy]= b_xy; - h->mb2b8_xy[mb_xy]= b8_xy; - } - } - - return 0; -fail: - free_tables(h); - return -1; -} - -static void common_init(H264Context *h){ - MpegEncContext * const s = &h->s; - - s->width = s->avctx->width; - s->height = s->avctx->height; - s->codec_id= s->avctx->codec->id; - - init_pred_ptrs(h); - - s->decode=1; //FIXME -} - -static int decode_init(AVCodecContext *avctx){ - H264Context *h= avctx->priv_data; - MpegEncContext * const s = &h->s; - - s->avctx = avctx; - common_init(h); - - s->out_format = FMT_H264; - 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; - - decode_init_vlc(h); - - return 0; -} - -static void frame_start(H264Context *h){ - MpegEncContext * const s = &h->s; - int i; - - MPV_frame_start(s, s->avctx); - ff_er_frame_start(s); - h->mmco_index=0; - - assert(s->linesize && s->uvlinesize); - - for(i=0; i<16; i++){ - h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3); - h->chroma_subblock_offset[i]= 2*((scan8[i] - scan8[0])&7) + 2*s->uvlinesize*((scan8[i] - scan8[0])>>3); - } - for(i=0; i<4; i++){ - h->block_offset[16+i]= - h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3); - } - -// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1; -} - -static void hl_decode_mb(H264Context *h){ - MpegEncContext * const s = &h->s; - const int mb_x= s->mb_x; - const int mb_y= s->mb_y; - const int mb_xy= mb_x + mb_y*s->mb_stride; - const int mb_type= s->current_picture.mb_type[mb_xy]; - uint8_t *dest_y, *dest_cb, *dest_cr; - int linesize, uvlinesize /*dct_offset*/; - int i; - - if(!s->decode) - return; - - if(s->mb_skiped){ - } - - dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16; - dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8; - dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8; - - if (h->mb_field_decoding_flag) { - linesize = s->linesize * 2; - uvlinesize = s->uvlinesize * 2; - if(mb_y&1){ //FIXME move out of this func? - dest_y -= s->linesize*15; - dest_cb-= s->linesize*7; - dest_cr-= s->linesize*7; - } - } else { - linesize = s->linesize; - uvlinesize = s->uvlinesize; -// dct_offset = s->linesize * 16; - } - - if(IS_INTRA(mb_type)){ - if(!(s->flags&CODEC_FLAG_GRAY)){ - h->pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize); - h->pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize); - } - - if(IS_INTRA4x4(mb_type)){ - if(!s->encoding){ - for(i=0; i<16; i++){ - uint8_t * const ptr= dest_y + h->block_offset[i]; - uint8_t *topright= ptr + 4 - linesize; - const int topright_avail= (h->topright_samples_available<intra4x4_pred_mode_cache[ scan8[i] ]; - int tr; - - if(!topright_avail){ - tr= ptr[3 - linesize]*0x01010101; - topright= (uint8_t*) &tr; - } - - h->pred4x4[ dir ](ptr, topright, linesize); - if(h->non_zero_count_cache[ scan8[i] ]){ - if(s->codec_id == CODEC_ID_H264) - h264_add_idct_c(ptr, h->mb + i*16, linesize); - else - svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0); - } - } - } - }else{ - h->pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize); - if(s->codec_id == CODEC_ID_H264) - h264_luma_dc_dequant_idct_c(h->mb, s->qscale); - else - svq3_luma_dc_dequant_idct_c(h->mb, s->qscale); - } - }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, - s->dsp.avg_h264_qpel_pixels_tab, s->dsp.avg_h264_chroma_pixels_tab); - } - - - if(!IS_INTRA4x4(mb_type)){ - if(s->codec_id == CODEC_ID_H264){ - for(i=0; i<16; i++){ - if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below - uint8_t * const ptr= dest_y + h->block_offset[i]; - h264_add_idct_c(ptr, h->mb + i*16, linesize); - } - } - }else{ - for(i=0; i<16; i++){ - if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below - uint8_t * const ptr= dest_y + h->block_offset[i]; - svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0); - } - } - } - } - - if(!(s->flags&CODEC_FLAG_GRAY)){ - chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp); - chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp); - if(s->codec_id == CODEC_ID_H264){ - for(i=16; i<16+4; i++){ - if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ - uint8_t * const ptr= dest_cb + h->block_offset[i]; - h264_add_idct_c(ptr, h->mb + i*16, uvlinesize); - } - } - for(i=20; i<20+4; i++){ - if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ - uint8_t * const ptr= dest_cr + h->block_offset[i]; - h264_add_idct_c(ptr, h->mb + i*16, uvlinesize); - } - } - }else{ - for(i=16; i<16+4; i++){ - if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ - uint8_t * const ptr= dest_cb + h->block_offset[i]; - svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2); - } - } - for(i=20; i<20+4; i++){ - if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ - uint8_t * const ptr= dest_cr + h->block_offset[i]; - svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2); - } - } - } - } -} - -static void decode_mb_cabac(H264Context *h){ -// MpegEncContext * const s = &h->s; -} - -/** - * fills the default_ref_list. - */ -static int fill_default_ref_list(H264Context *h){ - MpegEncContext * const s = &h->s; - int i; - Picture sorted_short_ref[16]; - - if(h->slice_type==B_TYPE){ - int out_i; - int limit= -1; - - for(out_i=0; out_ishort_ref_count; out_i++){ - int best_i=-1; - int best_poc=-1; - - for(i=0; ishort_ref_count; i++){ - const int poc= h->short_ref[i]->poc; - if(poc > limit && poc < best_poc){ - best_poc= poc; - best_i= i; - } - } - - assert(best_i != -1); - - limit= best_poc; - sorted_short_ref[out_i]= *h->short_ref[best_i]; - } - } - - if(s->picture_structure == PICT_FRAME){ - if(h->slice_type==B_TYPE){ - const int current_poc= s->current_picture_ptr->poc; - int list; - - for(list=0; list<2; list++){ - int index=0; - - for(i=0; ishort_ref_count && index < h->ref_count[list]; i++){ - const int i2= list ? h->short_ref_count - i - 1 : i; - const int poc= sorted_short_ref[i2].poc; - - if(sorted_short_ref[i2].reference != 3) continue; //FIXME refernce field shit - - if((list==1 && poc > current_poc) || (list==0 && poc < current_poc)){ - h->default_ref_list[list][index ]= sorted_short_ref[i2]; - h->default_ref_list[list][index++].pic_id= sorted_short_ref[i2].frame_num; - } - } - - for(i=0; ilong_ref_count && index < h->ref_count[ list ]; i++){ - if(h->long_ref[i]->reference != 3) continue; - - h->default_ref_list[ list ][index ]= *h->long_ref[i]; - h->default_ref_list[ list ][index++].pic_id= i;; - } - - if(h->long_ref_count > 1 && h->short_ref_count==0){ - Picture temp= h->default_ref_list[1][0]; - h->default_ref_list[1][0] = h->default_ref_list[1][1]; - h->default_ref_list[1][0] = temp; - } - - if(index < h->ref_count[ list ]) - memset(&h->default_ref_list[list][index], 0, sizeof(Picture)*(h->ref_count[ list ] - index)); - } - }else{ - int index=0; - for(i=0; ishort_ref_count && index < h->ref_count[0]; i++){ - if(h->short_ref[i]->reference != 3) continue; //FIXME refernce field shit - h->default_ref_list[0][index ]= *h->short_ref[i]; - h->default_ref_list[0][index++].pic_id= h->short_ref[i]->frame_num; - } - for(i=0; ilong_ref_count && index < h->ref_count[0]; i++){ - if(h->long_ref[i]->reference != 3) continue; - h->default_ref_list[0][index ]= *h->long_ref[i]; - h->default_ref_list[0][index++].pic_id= i;; - } - if(index < h->ref_count[0]) - memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index)); - } - }else{ //FIELD - if(h->slice_type==B_TYPE){ - }else{ - //FIXME second field balh - } - } - return 0; -} - -static int decode_ref_pic_list_reordering(H264Context *h){ - MpegEncContext * const s = &h->s; - int list; - - if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move beofre func - - for(list=0; list<2; list++){ - memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]); - - if(get_bits1(&s->gb)){ - int pred= h->curr_pic_num; - int index; - - for(index=0; ; index++){ - int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb); - int pic_id; - int i; - - - if(index >= h->ref_count[list]){ - fprintf(stderr, "reference count overflow\n"); - return -1; - } - - if(reordering_of_pic_nums_idc<3){ - if(reordering_of_pic_nums_idc<2){ - const int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1; - - if(abs_diff_pic_num >= h->max_pic_num){ - fprintf(stderr, "abs_diff_pic_num overflow\n"); - return -1; - } - - if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num; - else pred+= abs_diff_pic_num; - pred &= h->max_pic_num - 1; - - for(i= h->ref_count[list]-1; i>=index; i--){ - if(h->ref_list[list][i].pic_id == pred && h->ref_list[list][i].long_ref==0) - break; - } - }else{ - pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx - - for(i= h->ref_count[list]-1; i>=index; i--){ - if(h->ref_list[list][i].pic_id == pic_id && h->ref_list[list][i].long_ref==1) - break; - } - } - - if(i < index){ - fprintf(stderr, "reference picture missing during reorder\n"); - memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME - }else if(i > index){ - Picture tmp= h->ref_list[list][i]; - for(; i>index; i--){ - h->ref_list[list][i]= h->ref_list[list][i-1]; - } - h->ref_list[list][index]= tmp; - } - }else if(reordering_of_pic_nums_idc==3) - break; - else{ - fprintf(stderr, "illegal reordering_of_pic_nums_idc\n"); - return -1; - } - } - } - - if(h->slice_type!=B_TYPE) break; - } - return 0; -} - -static int pred_weight_table(H264Context *h){ - MpegEncContext * const s = &h->s; - int list, i; - - h->luma_log2_weight_denom= get_ue_golomb(&s->gb); - h->chroma_log2_weight_denom= get_ue_golomb(&s->gb); - - for(list=0; list<2; list++){ - for(i=0; iref_count[list]; i++){ - int luma_weight_flag, chroma_weight_flag; - - luma_weight_flag= get_bits1(&s->gb); - if(luma_weight_flag){ - h->luma_weight[list][i]= get_se_golomb(&s->gb); - h->luma_offset[list][i]= get_se_golomb(&s->gb); - } - - chroma_weight_flag= get_bits1(&s->gb); - if(chroma_weight_flag){ - int j; - for(j=0; j<2; j++){ - h->chroma_weight[list][i][j]= get_se_golomb(&s->gb); - h->chroma_offset[list][i][j]= get_se_golomb(&s->gb); - } - } - } - if(h->slice_type != B_TYPE) break; - } - return 0; -} - -/** - * instantaneos decoder refresh. - */ -static void idr(H264Context *h){ - int i; - - for(i=0; ilong_ref_count; i++){ - h->long_ref[i]->reference=0; - h->long_ref[i]= NULL; - } - h->long_ref_count=0; - - for(i=0; ishort_ref_count; i++){ - h->short_ref[i]->reference=0; - h->short_ref[i]= NULL; - } - h->short_ref_count=0; -} - -/** - * - * @return the removed picture or NULL if an error occures - */ -static Picture * remove_short(H264Context *h, int frame_num){ - MpegEncContext * const s = &h->s; - int i; - - if(s->avctx->debug&FF_DEBUG_MMCO) - printf("remove short %d count %d\n", frame_num, h->short_ref_count); - - for(i=0; ishort_ref_count; i++){ - Picture *pic= h->short_ref[i]; - if(s->avctx->debug&FF_DEBUG_MMCO) - printf("%d %d %p\n", i, pic->frame_num, pic); - if(pic->frame_num == frame_num){ - h->short_ref[i]= NULL; - memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i - 1)*sizeof(Picture*)); - h->short_ref_count--; - return pic; - } - } - return NULL; -} - -/** - * - * @return the removed picture or NULL if an error occures - */ -static Picture * remove_long(H264Context *h, int i){ - Picture *pic; - - if(i >= h->long_ref_count) return NULL; - pic= h->long_ref[i]; - if(pic==NULL) return NULL; - - h->long_ref[i]= NULL; - memmove(&h->long_ref[i], &h->long_ref[i+1], (h->long_ref_count - i - 1)*sizeof(Picture*)); - h->long_ref_count--; - - return pic; -} - -/** - * Executes the reference picture marking (memory management control operations). - */ -static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){ - MpegEncContext * const s = &h->s; - int i; - int current_is_long=0; - Picture *pic; - - if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0) - printf("no mmco here\n"); - - for(i=0; iavctx->debug&FF_DEBUG_MMCO) - printf("mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_frame_num, h->mmco[i].long_index); - - switch(mmco[i].opcode){ - case MMCO_SHORT2UNUSED: - pic= remove_short(h, mmco[i].short_frame_num); - if(pic==NULL) return -1; - pic->reference= 0; - break; - case MMCO_SHORT2LONG: - pic= remove_long(h, mmco[i].long_index); - if(pic) pic->reference=0; - - h->long_ref[ mmco[i].long_index ]= remove_short(h, mmco[i].short_frame_num); - h->long_ref[ mmco[i].long_index ]->long_ref=1; - break; - case MMCO_LONG2UNUSED: - pic= remove_long(h, mmco[i].long_index); - if(pic==NULL) return -1; - pic->reference= 0; - break; - case MMCO_LONG: - pic= remove_long(h, mmco[i].long_index); - if(pic) pic->reference=0; - - h->long_ref[ mmco[i].long_index ]= s->current_picture_ptr; - h->long_ref[ mmco[i].long_index ]->long_ref=1; - h->long_ref_count++; - - current_is_long=1; - break; - case MMCO_SET_MAX_LONG: - assert(mmco[i].long_index <= 16); - while(mmco[i].long_index < h->long_ref_count){ - pic= remove_long(h, mmco[i].long_index); - pic->reference=0; - } - while(mmco[i].long_index > h->long_ref_count){ - h->long_ref[ h->long_ref_count++ ]= NULL; - } - break; - case MMCO_RESET: - while(h->short_ref_count){ - pic= remove_short(h, h->short_ref[0]->frame_num); - pic->reference=0; - } - while(h->long_ref_count){ - pic= remove_long(h, h->long_ref_count-1); - pic->reference=0; - } - break; - default: assert(0); - } - } - - if(!current_is_long){ - pic= remove_short(h, s->current_picture_ptr->frame_num); - if(pic){ - pic->reference=0; - fprintf(stderr, "illegal short term buffer state detected\n"); - } - - if(h->short_ref_count) - memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*)); - - h->short_ref[0]= s->current_picture_ptr; - h->short_ref[0]->long_ref=0; - h->short_ref_count++; - } - - return 0; -} - -static int decode_ref_pic_marking(H264Context *h){ - MpegEncContext * const s = &h->s; - int i; - - if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields - s->broken_link= get_bits1(&s->gb) -1; - h->mmco[0].long_index= get_bits1(&s->gb) - 1; // current_long_term_idx - if(h->mmco[0].long_index == -1) - h->mmco_index= 0; - else{ - h->mmco[0].opcode= MMCO_LONG; - h->mmco_index= 1; - } - }else{ - if(get_bits1(&s->gb)){ // adaptive_ref_pic_marking_mode_flag - for(i= h->mmco_index; igb);; - - h->mmco[i].opcode= opcode; - if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){ - h->mmco[i].short_frame_num= (h->frame_num - get_ue_golomb(&s->gb) - 1) & ((1<sps.log2_max_frame_num)-1); //FIXME fields -/* if(h->mmco[i].short_frame_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_frame_num ] == NULL){ - fprintf(stderr, "illegal short ref in memory management control operation %d\n", mmco); - return -1; - }*/ - } - if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){ - h->mmco[i].long_index= get_ue_golomb(&s->gb); - if(/*h->mmco[i].long_index >= h->long_ref_count || h->long_ref[ h->mmco[i].long_index ] == NULL*/ h->mmco[i].long_index >= 16){ - fprintf(stderr, "illegal long ref in memory management control operation %d\n", opcode); - return -1; - } - } - - if(opcode > MMCO_LONG){ - fprintf(stderr, "illegal memory management control operation %d\n", opcode); - return -1; - } - } - h->mmco_index= i; - }else{ - assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count); - - if(h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count){ //FIXME fields - h->mmco[0].opcode= MMCO_SHORT2UNUSED; - h->mmco[0].short_frame_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num; - h->mmco_index= 1; - }else - h->mmco_index= 0; - } - } - - return 0; -} - -static int init_poc(H264Context *h){ - MpegEncContext * const s = &h->s; - const int max_frame_num= 1<sps.log2_max_frame_num; - int field_poc[2]; - - if(h->nal_unit_type == NAL_IDR_SLICE){ - h->frame_num_offset= 0; - }else{ - if(h->frame_num < h->prev_frame_num) - h->frame_num_offset= h->prev_frame_num_offset + max_frame_num; - else - h->frame_num_offset= h->prev_frame_num_offset; - } - - if(h->sps.poc_type==0){ - const int max_poc_lsb= 1<sps.log2_max_poc_lsb; - - if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2) - h->poc_msb = h->prev_poc_msb + max_poc_lsb; - else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2) - h->poc_msb = h->prev_poc_msb - max_poc_lsb; - else - h->poc_msb = h->prev_poc_msb; -//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb); - field_poc[0] = - field_poc[1] = h->poc_msb + h->poc_lsb; - if(s->picture_structure == PICT_FRAME) - field_poc[1] += h->delta_poc_bottom; - }else if(h->sps.poc_type==1){ - int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc; - int i; - - if(h->sps.poc_cycle_length != 0) - abs_frame_num = h->frame_num_offset + h->frame_num; - else - abs_frame_num = 0; - - if(h->nal_ref_idc==0 && abs_frame_num > 0) - abs_frame_num--; - - expected_delta_per_poc_cycle = 0; - for(i=0; i < h->sps.poc_cycle_length; i++) - expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse - - if(abs_frame_num > 0){ - int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length; - int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length; - - expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle; - for(i = 0; i <= frame_num_in_poc_cycle; i++) - expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ]; - } else - expectedpoc = 0; - - if(h->nal_ref_idc == 0) - expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic; - - field_poc[0] = expectedpoc + h->delta_poc[0]; - field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field; - - if(s->picture_structure == PICT_FRAME) - field_poc[1] += h->delta_poc[1]; - }else{ - int poc; - if(h->nal_unit_type == NAL_IDR_SLICE){ - poc= 0; - }else{ - if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num); - else poc= 2*(h->frame_num_offset + h->frame_num) - 1; - } - field_poc[0]= poc; - field_poc[1]= poc; - } - - if(s->picture_structure != PICT_BOTTOM_FIELD) - s->current_picture_ptr->field_poc[0]= field_poc[0]; - if(s->picture_structure != PICT_TOP_FIELD) - s->current_picture_ptr->field_poc[1]= field_poc[1]; - if(s->picture_structure == PICT_FRAME) // FIXME field pix? - s->current_picture_ptr->poc= FFMIN(field_poc[0], field_poc[1]); - - return 0; -} - -/** - * decodes a slice header. - * this will allso call MPV_common_init() and frame_start() as needed - */ -static int decode_slice_header(H264Context *h){ - MpegEncContext * const s = &h->s; - int first_mb_in_slice, pps_id; - int num_ref_idx_active_override_flag; - static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE}; - float new_aspect; - - s->current_picture.reference= h->nal_ref_idc != 0; - - first_mb_in_slice= get_ue_golomb(&s->gb); - - h->slice_type= get_ue_golomb(&s->gb); - if(h->slice_type > 9){ - fprintf(stderr, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y); - } - if(h->slice_type > 4){ - h->slice_type -= 5; - h->slice_type_fixed=1; - }else - h->slice_type_fixed=0; - - h->slice_type= slice_type_map[ h->slice_type ]; - - s->pict_type= h->slice_type; // to make a few old func happy, its wrong though - - pps_id= get_ue_golomb(&s->gb); - if(pps_id>255){ - fprintf(stderr, "pps_id out of range\n"); - return -1; - } - h->pps= h->pps_buffer[pps_id]; - if(h->pps.slice_group_count == 0){ - fprintf(stderr, "non existing PPS referenced\n"); - return -1; - } - - h->sps= h->sps_buffer[ h->pps.sps_id ]; - if(h->sps.log2_max_frame_num == 0){ - fprintf(stderr, "non existing SPS referenced\n"); - return -1; - } - - s->mb_width= h->sps.mb_width; - s->mb_height= h->sps.mb_height; - - h->b_stride= s->mb_width*4; - h->b8_stride= s->mb_width*2; - - s->mb_x = first_mb_in_slice % s->mb_width; - s->mb_y = first_mb_in_slice / s->mb_width; //FIXME AFFW - - s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right ); - if(h->sps.frame_mbs_only_flag) - s->height= 16*s->mb_height - 2*(h->sps.crop_top + h->sps.crop_bottom); - else - s->height= 16*s->mb_height - 4*(h->sps.crop_top + h->sps.crop_bottom); //FIXME recheck - - if(s->aspected_height) //FIXME emms at end of slice ? - new_aspect= h->sps.sar_width*s->width / (float)(s->height*h->sps.sar_height); - else - new_aspect=0; - - if (s->context_initialized - && ( s->width != s->avctx->width || s->height != s->avctx->height - || ABS(new_aspect - s->avctx->aspect_ratio) > 0.001)) { - free_tables(h); - MPV_common_end(s); - } - if (!s->context_initialized) { - if (MPV_common_init(s) < 0) - return -1; - - alloc_tables(h); - - s->avctx->width = s->width; - s->avctx->height = s->height; - s->avctx->aspect_ratio= new_aspect; - } - - if(first_mb_in_slice == 0){ - frame_start(h); - } - - s->current_picture_ptr->frame_num= //FIXME frame_num cleanup - h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num); - - if(h->sps.frame_mbs_only_flag){ - s->picture_structure= PICT_FRAME; - }else{ - if(get_bits1(&s->gb)) //field_pic_flag - s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag - else - s->picture_structure= PICT_FRAME; - } - - if(s->picture_structure==PICT_FRAME){ - h->curr_pic_num= h->frame_num; - h->max_pic_num= 1<< h->sps.log2_max_frame_num; - }else{ - h->curr_pic_num= 2*h->frame_num; - h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1); - } - - if(h->nal_unit_type == NAL_IDR_SLICE){ - get_ue_golomb(&s->gb); /* idr_pic_id */ - } - - if(h->sps.poc_type==0){ - h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb); - - if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){ - h->delta_poc_bottom= get_se_golomb(&s->gb); - } - } - - if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){ - h->delta_poc[0]= get_se_golomb(&s->gb); - - if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME) - h->delta_poc[1]= get_se_golomb(&s->gb); - } - - init_poc(h); - - if(h->pps.redundant_pic_cnt_present){ - h->redundant_pic_count= get_ue_golomb(&s->gb); - } - - //set defaults, might be overriden a few line later - h->ref_count[0]= h->pps.ref_count[0]; - h->ref_count[1]= h->pps.ref_count[1]; - - if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){ - if(h->slice_type == B_TYPE){ - h->direct_spatial_mv_pred= get_bits1(&s->gb); - } - num_ref_idx_active_override_flag= get_bits1(&s->gb); - - if(num_ref_idx_active_override_flag){ - h->ref_count[0]= get_ue_golomb(&s->gb) + 1; - if(h->slice_type==B_TYPE) - h->ref_count[1]= get_ue_golomb(&s->gb) + 1; - - if(h->ref_count[0] > 32 || h->ref_count[1] > 32){ - fprintf(stderr, "reference overflow\n"); - return -1; - } - } - } - - if(first_mb_in_slice == 0){ - fill_default_ref_list(h); - } - - decode_ref_pic_list_reordering(h); - - if( (h->pps.weighted_pred && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE )) - || (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) ) - pred_weight_table(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 - //FIXME qscale / qp ... stuff - if(h->slice_type == SP_TYPE){ - get_bits1(&s->gb); /* sp_for_switch_flag */ - } - if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){ - get_se_golomb(&s->gb); /* slice_qs_delta */ - } - - 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); - } - }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) - slice_group_change_cycle= get_bits(&s->gb, ?); -#endif - - if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - printf("mb:%d %c pps:%d frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d\n", - first_mb_in_slice, - av_get_pict_type_char(h->slice_type), - pps_id, h->frame_num, - 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 - ); - } - - return 0; -} - -/** - * - */ -static inline int get_level_prefix(GetBitContext *gb){ - unsigned int buf; - int log; - - OPEN_READER(re, gb); - UPDATE_CACHE(re, gb); - buf=GET_CACHE(re, gb); - - log= 32 - av_log2(buf); -#ifdef TRACE - print_bin(buf>>(32-log), log); - printf("%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__); -#endif - - LAST_SKIP_BITS(re, gb, log); - CLOSE_READER(re, gb); - - return log-1; -} - -/** - * decodes a residual block. - * @param n block index - * @param scantable scantable - * @param max_coeff number of coefficients in the block - * @return <0 if an error occured - */ -static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, int qp, int max_coeff){ - MpegEncContext * const s = &h->s; - const uint16_t *qmul= dequant_coeff[qp]; - static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3}; - int level[16], run[16]; - int suffix_length, zeros_left, coeff_num, coeff_token, total_coeff, i, trailing_ones; - - //FIXME put trailing_onex into the context - - if(n == CHROMA_DC_BLOCK_INDEX){ - coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1); - total_coeff= coeff_token>>2; - }else{ - if(n == LUMA_DC_BLOCK_INDEX){ - total_coeff= pred_non_zero_count(h, 0); - coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2); - total_coeff= coeff_token>>2; - }else{ - total_coeff= pred_non_zero_count(h, n); - coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2); - total_coeff= coeff_token>>2; - h->non_zero_count_cache[ scan8[n] ]= total_coeff; - } - } - - //FIXME set last_non_zero? - - if(total_coeff==0) - return 0; - - trailing_ones= coeff_token&3; - tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff); - assert(total_coeff<=16); - - for(i=0; i 10 && trailing_ones < 3; - - for(; imb_x, s->mb_y); - return -1; - } - - if(i==trailing_ones && i<3) level_code+= 2; //FIXME split first iteration - - mask= -(level_code&1); - level[i]= (((2+level_code)>>1) ^ mask) - mask; - - if(suffix_length==0) suffix_length=1; //FIXME split first iteration - -#if 1 - 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 -#endif - tprintf("level: %d suffix_length:%d\n", level[i], suffix_length); - } - - if(total_coeff == max_coeff) - zeros_left=0; - else{ - if(n == CHROMA_DC_BLOCK_INDEX) - zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1); - else - zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1); - } - - for(i=0; imb_x, s->mb_y); - return -1; - } - - for(; i 24){ - for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode? - int j; - - coeff_num += run[i] + 1; //FIXME add 1 earlier ? - j= scantable[ coeff_num ]; - - block[j]= level[i]; - } - }else{ - for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode? - int j; - - coeff_num += run[i] + 1; //FIXME add 1 earlier ? - j= scantable[ coeff_num ]; - - block[j]= level[i] * qmul[j]; -// printf("%d %d ", block[j], qmul[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(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; - - s->dsp.clear_blocks(h->mb); //FIXME avoid if allready clear (move after skip handlong? - - tprintf("pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y); - cbp = 0; /* avoid warning. FIXME: find a solution without slowing - down the code */ - if(h->slice_type != I_TYPE && h->slice_type != SI_TYPE){ - if(s->mb_skip_run==-1) - s->mb_skip_run= get_ue_golomb(&s->gb); - - if (s->mb_skip_run--) { - int mx, my; - /* skip mb */ -//FIXME b frame - mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0; - - memset(h->non_zero_count[mb_xy], 0, 16); - memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui - - 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; - - 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->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 - h->slice_table[ mb_xy ]= h->slice_num; - - h->prev_mb_skiped= 1; - return 0; - } - } - if(h->sps.mb_aff /* && !field pic FIXME needed? */){ - if((s->mb_y&1)==0) - h->mb_field_decoding_flag = get_bits1(&s->gb); - }else - h->mb_field_decoding_flag=0; //FIXME som ed note ?! - - h->prev_mb_skiped= 0; - - mb_type= get_ue_golomb(&s->gb); - if(h->slice_type == B_TYPE){ - if(mb_type < 23){ - partition_count= b_mb_type_info[mb_type].partition_count; - mb_type= b_mb_type_info[mb_type].type; - }else{ - mb_type -= 23; - goto decode_intra_mb; - } - }else if(h->slice_type == P_TYPE /*|| h->slice_type == SP_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: - if(mb_type > 25){ - fprintf(stderr, "mb_type %d in %c slice to large at %d %d\n", mb_type, av_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y); - return -1; - } - 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(h->mb_field_decoding_flag) - mb_type |= MB_TYPE_INTERLACED; - - s->current_picture.mb_type[mb_xy]= mb_type; - h->slice_table[ mb_xy ]= h->slice_num; - - if(IS_INTRA_PCM(mb_type)){ - const uint8_t *ptr; - int x, y; - - // we assume these blocks are very rare so we dont optimize it - align_get_bits(&s->gb); - - ptr= s->gb.buffer + get_bits_count(&s->gb); - - for(y=0; y<16; y++){ - const int index= 4*(y&3) + 64*(y>>2); - for(x=0; x<16; x++){ - h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++); - } - } - for(y=0; y<8; y++){ - const int index= 256 + 4*(y&3) + 32*(y>>2); - for(x=0; x<8; x++){ - h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++); - } - } - for(y=0; y<8; y++){ - const int index= 256 + 64 + 4*(y&3) + 32*(y>>2); - for(x=0; x<8; x++){ - h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++); - } - } - - skip_bits(&s->gb, 384); //FIXME check /fix the bitstream readers - - memset(h->non_zero_count[mb_xy], 16, 16); - - return 0; - } - - fill_caches(h, mb_type); - - //mb_pred - if(IS_INTRA(mb_type)){ -// init_top_left_availability(h); - if(IS_INTRA4x4(mb_type)){ - int i; - -// fill_intra4x4_pred_table(h); - for(i=0; i<16; i++){ - const int mode_coded= !get_bits1(&s->gb); - const int predicted_mode= pred_intra_mode(h, i); - int mode; - - if(mode_coded){ - const int rem_mode= get_bits(&s->gb, 3); - if(rem_modeintra4x4_pred_mode_cache[ scan8[i] ] = mode; - } - 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= get_ue_golomb(&s->gb); - - 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]; - - if(h->slice_type == B_TYPE){ - for(i=0; i<4; i++){ - h->sub_mb_type[i]= get_ue_golomb(&s->gb); - if(h->sub_mb_type[i] >=13){ - fprintf(stderr, "B sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y); - return -1; - } - sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count; - h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type; - } - }else{ - assert(h->slice_type == P_TYPE || h->slice_type == SP_TYPE); //FIXME SP correct ? - for(i=0; i<4; i++){ - h->sub_mb_type[i]= get_ue_golomb(&s->gb); - if(h->sub_mb_type[i] >=4){ - fprintf(stderr, "P sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y); - return -1; - } - 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++){ - const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list]; - if(ref_count == 0) continue; - for(i=0; i<4; i++){ - if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){ - ref[list][i] = get_te0_golomb(&s->gb, ref_count); //FIXME init to 0 before and skip? - }else{ - //FIXME - ref[list][i] = -1; - } - } - } - - for(list=0; list<2; list++){ - const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list]; - if(ref_count == 0) continue; - - 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; jmv_cache[list][ scan8[index] ]; - pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my); - mx += get_se_golomb(&s->gb); - my += get_se_golomb(&s->gb); - 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; - }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; - }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; - }else{ - assert(IS_SUB_4X4(sub_mb_type)); - mv_cache[ 0 ][0]= mx; - mv_cache[ 0 ][1]= my; - } - } - }else{ - uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0]; - p[0] = p[1]= - p[8] = p[9]= 0; - } - } - } - }else if(!IS_DIRECT(mb_type)){ - int list, mx, my, i; - //FIXME we should set ref_idx_l? to 0 if we use that later ... - if(IS_16X16(mb_type)){ - for(list=0; list<2; list++){ - if(h->ref_count[0]>0){ - if(IS_DIR(mb_type, 0, list)){ - const int val= get_te0_golomb(&s->gb, h->ref_count[list]); - fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 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] ], &mx, &my); - mx += get_se_golomb(&s->gb); - my += get_se_golomb(&s->gb); - tprintf("final mv:%d %d\n", mx, my); - - 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 val= get_te0_golomb(&s->gb, h->ref_count[list]); - fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 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], &mx, &my); - mx += get_se_golomb(&s->gb); - my += get_se_golomb(&s->gb); - tprintf("final mv:%d %d\n", mx, my); - - 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 val= get_te0_golomb(&s->gb, h->ref_count[list]); - fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 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 ], &mx, &my); - mx += get_se_golomb(&s->gb); - my += get_se_golomb(&s->gb); - tprintf("final mv:%d %d\n", mx, my); - - fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4); - } - } - } - } - } - - if(IS_INTER(mb_type)) - write_back_motion(h, mb_type); - - if(!IS_INTRA16x16(mb_type)){ - cbp= get_ue_golomb(&s->gb); - if(cbp > 47){ - fprintf(stderr, "cbp too large (%d) at %d %d\n", cbp, s->mb_x, s->mb_y); - return -1; - } - - if(IS_INTRA4x4(mb_type)) - cbp= golomb_to_intra4x4_cbp[cbp]; - else - cbp= golomb_to_inter_cbp[cbp]; - } - - if(cbp || IS_INTRA16x16(mb_type)){ - int i8x8, i4x4, chroma_idx; - int chroma_qp, dquant; - GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr; - const uint8_t *scan, *dc_scan; - -// fill_non_zero_count_cache(h); - - if(IS_INTERLACED(mb_type)){ - scan= field_scan; - dc_scan= luma_dc_field_scan; - }else{ - scan= zigzag_scan; - dc_scan= luma_dc_zigzag_scan; - } - - dquant= get_se_golomb(&s->gb); - - if( dquant > 25 || dquant < -26 ){ - fprintf(stderr, "dquant out of range (%d) at %d %d\n", dquant, s->mb_x, s->mb_y); - return -1; - } - - s->qscale += dquant; - if(((unsigned)s->qscale) > 51){ - if(s->qscale<0) s->qscale+= 52; - else s->qscale-= 52; - } - - h->chroma_qp= chroma_qp= get_chroma_qp(h, s->qscale); - if(IS_INTRA16x16(mb_type)){ - if( decode_residual(h, h->intra_gb_ptr, h->mb, LUMA_DC_BLOCK_INDEX, dc_scan, s->qscale, 16) < 0){ - return -1; //FIXME continue if partotioned and other retirn -1 too - } - - assert((cbp&15) == 0 || (cbp&15) == 15); - - if(cbp&15){ - for(i8x8=0; i8x8<4; i8x8++){ - for(i4x4=0; i4x4<4; i4x4++){ - const int index= i4x4 + 4*i8x8; - if( decode_residual(h, h->intra_gb_ptr, h->mb + 16*index, index, scan + 1, s->qscale, 15) < 0 ){ - return -1; - } - } - } - }else{ - memset(&h->non_zero_count_cache[8], 0, 8*4); //FIXME stupid & slow - } - }else{ - for(i8x8=0; i8x8<4; i8x8++){ - if(cbp & (1<mb + 16*index, 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){ - for(chroma_idx=0; chroma_idx<2; chroma_idx++) - if( decode_residual(h, gb, h->mb + 256 + 16*4*chroma_idx, CHROMA_DC_BLOCK_INDEX, chroma_dc_scan, chroma_qp, 4) < 0){ - return -1; - } - } - - if(cbp&0x20){ - for(chroma_idx=0; chroma_idx<2; chroma_idx++){ - for(i4x4=0; i4x4<4; i4x4++){ - const int index= 16 + 4*chroma_idx + i4x4; - if( decode_residual(h, gb, h->mb + 16*index, index, scan + 1, 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; - } - }else{ - memset(&h->non_zero_count_cache[8], 0, 8*5); - } - write_back_non_zero_count(h); - - return 0; -} - -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 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(ret<0){ - fprintf(stderr, "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++){ - int ret= decode_mb(h); - - hl_decode_mb(h); - - if(ret<0){ - fprintf(stderr, "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; - if(++s->mb_y >= s->mb_height){ - 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){ - 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; - } - } - } - s->mb_x=0; - ff_draw_horiz_band(s, 16*s->mb_y, 16); - } -#endif - return -1; //not reached -} - -static inline int decode_vui_parameters(H264Context *h, SPS *sps){ - MpegEncContext * const s = &h->s; - int aspect_ratio_info_present_flag, aspect_ratio_idc; - - aspect_ratio_info_present_flag= get_bits1(&s->gb); - - if( aspect_ratio_info_present_flag ) { - aspect_ratio_idc= get_bits(&s->gb, 8); - if( aspect_ratio_idc == EXTENDED_SAR ) { - sps->sar_width= get_bits(&s->gb, 16); - sps->sar_height= get_bits(&s->gb, 16); - }else if(aspect_ratio_idc < 16){ - sps->sar_width= pixel_aspect[aspect_ratio_idc][0]; - sps->sar_height= pixel_aspect[aspect_ratio_idc][1]; - }else{ - fprintf(stderr, "illegal aspect ratio\n"); - return -1; - } - }else{ - sps->sar_width= - sps->sar_height= 0; - } -// s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height); -#if 0 -| overscan_info_present_flag |0 |u(1) | -| if( overscan_info_present_flag ) | | | -| overscan_appropriate_flag |0 |u(1) | -| video_signal_type_present_flag |0 |u(1) | -| if( video_signal_type_present_flag ) { | | | -| video_format |0 |u(3) | -| video_full_range_flag |0 |u(1) | -| colour_description_present_flag |0 |u(1) | -| if( colour_description_present_flag ) { | | | -| colour_primaries |0 |u(8) | -| transfer_characteristics |0 |u(8) | -| matrix_coefficients |0 |u(8) | -| } | | | -| } | | | -| chroma_location_info_present_flag |0 |u(1) | -| if ( chroma_location_info_present_flag ) { | | | -| chroma_sample_location_type_top_field |0 |ue(v) | -| chroma_sample_location_type_bottom_field |0 |ue(v) | -| } | | | -| timing_info_present_flag |0 |u(1) | -| if( timing_info_present_flag ) { | | | -| num_units_in_tick |0 |u(32) | -| time_scale |0 |u(32) | -| fixed_frame_rate_flag |0 |u(1) | -| } | | | -| nal_hrd_parameters_present_flag |0 |u(1) | -| if( nal_hrd_parameters_present_flag = = 1) | | | -| hrd_parameters( ) | | | -| vcl_hrd_parameters_present_flag |0 |u(1) | -| if( vcl_hrd_parameters_present_flag = = 1) | | | -| hrd_parameters( ) | | | -| if( ( nal_hrd_parameters_present_flag = = 1 | || | | -| | | | -|( vcl_hrd_parameters_present_flag = = 1 ) ) | | | -| low_delay_hrd_flag |0 |u(1) | -| bitstream_restriction_flag |0 |u(1) | -| if( bitstream_restriction_flag ) { |0 |u(1) | -| motion_vectors_over_pic_boundaries_flag |0 |u(1) | -| max_bytes_per_pic_denom |0 |ue(v) | -| max_bits_per_mb_denom |0 |ue(v) | -| log2_max_mv_length_horizontal |0 |ue(v) | -| log2_max_mv_length_vertical |0 |ue(v) | -| num_reorder_frames |0 |ue(v) | -| max_dec_frame_buffering |0 |ue(v) | -| } | | | -|} | | | -#endif - return 0; -} - -static inline int decode_seq_parameter_set(H264Context *h){ - MpegEncContext * const s = &h->s; - int profile_idc, level_idc; - int sps_id, i; - SPS *sps; - - profile_idc= get_bits(&s->gb, 8); - get_bits1(&s->gb); //constraint_set0_flag - get_bits1(&s->gb); //constraint_set1_flag - get_bits1(&s->gb); //constraint_set2_flag - get_bits(&s->gb, 5); // reserved - level_idc= get_bits(&s->gb, 8); - sps_id= get_ue_golomb(&s->gb); - - sps= &h->sps_buffer[ sps_id ]; - sps->profile_idc= profile_idc; - sps->level_idc= level_idc; - - sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4; - sps->poc_type= get_ue_golomb(&s->gb); - - if(sps->poc_type == 0){ //FIXME #define - sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4; - } else if(sps->poc_type == 1){//FIXME #define - sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb); - sps->offset_for_non_ref_pic= get_se_golomb(&s->gb); - sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb); - sps->poc_cycle_length= get_ue_golomb(&s->gb); - - for(i=0; ipoc_cycle_length; i++) - sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb); - } - if(sps->poc_type > 2){ - fprintf(stderr, "illegal POC type %d\n", sps->poc_type); - return -1; - } - - sps->ref_frame_count= get_ue_golomb(&s->gb); - sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb); - sps->mb_width= get_ue_golomb(&s->gb) + 1; - sps->mb_height= get_ue_golomb(&s->gb) + 1; - sps->frame_mbs_only_flag= get_bits1(&s->gb); - if(!sps->frame_mbs_only_flag) - sps->mb_aff= get_bits1(&s->gb); - else - sps->mb_aff= 0; - - sps->direct_8x8_inference_flag= get_bits1(&s->gb); - - sps->crop= get_bits1(&s->gb); - if(sps->crop){ - sps->crop_left = get_ue_golomb(&s->gb); - sps->crop_right = get_ue_golomb(&s->gb); - sps->crop_top = get_ue_golomb(&s->gb); - sps->crop_bottom= get_ue_golomb(&s->gb); - if(sps->crop_left || sps->crop_top){ - fprintf(stderr, "insane croping not completly supported, this could look slightly wrong ...\n"); - } - }else{ - sps->crop_left = - sps->crop_right = - sps->crop_top = - sps->crop_bottom= 0; - } - - sps->vui_parameters_present_flag= get_bits1(&s->gb); - if( sps->vui_parameters_present_flag ) - decode_vui_parameters(h, sps); - - if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - printf("sps:%d profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s\n", - sps_id, sps->profile_idc, sps->level_idc, - sps->poc_type, - sps->ref_frame_count, - sps->mb_width, sps->mb_height, - sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"), - sps->direct_8x8_inference_flag ? "8B8" : "", - sps->crop_left, sps->crop_right, - sps->crop_top, sps->crop_bottom, - sps->vui_parameters_present_flag ? "VUI" : "" - ); - } - return 0; -} - -static inline int decode_picture_parameter_set(H264Context *h){ - MpegEncContext * const s = &h->s; - int pps_id= get_ue_golomb(&s->gb); - PPS *pps= &h->pps_buffer[pps_id]; - - pps->sps_id= get_ue_golomb(&s->gb); - pps->cabac= get_bits1(&s->gb); - pps->pic_order_present= get_bits1(&s->gb); - pps->slice_group_count= get_ue_golomb(&s->gb) + 1; - if(pps->slice_group_count > 1 ){ - pps->mb_slice_group_map_type= get_ue_golomb(&s->gb); -fprintf(stderr, "FMO not supported\n"); - switch(pps->mb_slice_group_map_type){ - case 0: -#if 0 -| for( i = 0; i <= num_slice_groups_minus1; i++ ) | | | -| run_length[ i ] |1 |ue(v) | -#endif - break; - case 2: -#if 0 -| for( i = 0; i < num_slice_groups_minus1; i++ ) | | | -|{ | | | -| top_left_mb[ i ] |1 |ue(v) | -| bottom_right_mb[ i ] |1 |ue(v) | -| } | | | -#endif - break; - case 3: - case 4: - case 5: -#if 0 -| slice_group_change_direction_flag |1 |u(1) | -| slice_group_change_rate_minus1 |1 |ue(v) | -#endif - break; - case 6: -#if 0 -| slice_group_id_cnt_minus1 |1 |ue(v) | -| for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | | -|) | | | -| slice_group_id[ i ] |1 |u(v) | -#endif - break; - } - } - pps->ref_count[0]= get_ue_golomb(&s->gb) + 1; - pps->ref_count[1]= get_ue_golomb(&s->gb) + 1; - if(pps->ref_count[0] > 32 || pps->ref_count[1] > 32){ - fprintf(stderr, "reference overflow (pps)\n"); - return -1; - } - - pps->weighted_pred= get_bits1(&s->gb); - pps->weighted_bipred_idc= get_bits(&s->gb, 2); - pps->init_qp= get_se_golomb(&s->gb) + 26; - pps->init_qs= get_se_golomb(&s->gb) + 26; - pps->chroma_qp_index_offset= get_se_golomb(&s->gb); - pps->deblocking_filter_parameters_present= get_bits1(&s->gb); - pps->constrained_intra_pred= get_bits1(&s->gb); - pps->redundant_pic_cnt_present = get_bits1(&s->gb); - - if(s->avctx->debug&FF_DEBUG_PICT_INFO){ - printf("pps:%d sps:%d %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d %s %s %s\n", - pps_id, pps->sps_id, - pps->cabac ? "CABAC" : "CAVLC", - pps->slice_group_count, - pps->ref_count[0], pps->ref_count[1], - pps->weighted_pred ? "weighted" : "", - pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset, - pps->deblocking_filter_parameters_present ? "LPAR" : "", - pps->constrained_intra_pred ? "CONSTR" : "", - pps->redundant_pic_cnt_present ? "REDU" : "" - ); - } - - return 0; -} - -/** - * finds the end of the current frame in the bitstream. - * @return the position of the first byte of the next frame, or -1 - */ -static int find_frame_end(MpegEncContext *s, uint8_t *buf, int buf_size){ - ParseContext *pc= &s->parse_context; - int i; - uint32_t state; -//printf("first %02X%02X%02X%02X\n", buf[0], buf[1],buf[2],buf[3]); -// mb_addr= pc->mb_addr - 1; - state= pc->state; - //FIXME this will fail with slices - for(i=0; iframe_start_found){ - pc->state=-1; - pc->frame_start_found= 0; - return i-3; - } - pc->frame_start_found= 1; - } - } - - pc->state= state; - return END_NOT_FOUND; -} - -static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){ - MpegEncContext * const s = &h->s; - AVCodecContext * const avctx= s->avctx; - int buf_index=0; -#if 0 - int i; - for(i=0; i<32; i++){ - printf("%X ", buf[i]); - } -#endif - for(;;){ - int consumed; - int dst_length; - int bit_length; - uint8_t *ptr; - - // start code prefix search - for(; buf_index + 3 < buf_size; buf_index++){ - // this should allways succeed in the first iteration - if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1) - break; - } - - if(buf_index+3 >= buf_size) break; - - buf_index+=3; - - ptr= decode_nal(h, buf + buf_index, &dst_length, &consumed, buf_size - buf_index); - if(ptr[dst_length - 1] == 0) dst_length--; - bit_length= 8*dst_length - decode_rbsp_trailing(ptr + dst_length - 1); - - if(s->avctx->debug&FF_DEBUG_STARTCODE){ - printf("NAL %d at %d length %d\n", h->nal_unit_type, buf_index, dst_length); - } - - buf_index += consumed; - - if(h->nal_ref_idc < s->hurry_up) - continue; - - switch(h->nal_unit_type){ - case NAL_IDR_SLICE: - idr(h); //FIXME ensure we dont loose some frames if there is reordering - case NAL_SLICE: - init_get_bits(&s->gb, ptr, bit_length); - h->intra_gb_ptr= - h->inter_gb_ptr= &s->gb; - s->data_partitioning = 0; - - if(decode_slice_header(h) < 0) return -1; - if(h->redundant_pic_count==0) - decode_slice(h); - break; - case NAL_DPA: - init_get_bits(&s->gb, ptr, bit_length); - h->intra_gb_ptr= - h->inter_gb_ptr= NULL; - s->data_partitioning = 1; - - if(decode_slice_header(h) < 0) return -1; - break; - case NAL_DPB: - init_get_bits(&h->intra_gb, ptr, bit_length); - h->intra_gb_ptr= &h->intra_gb; - break; - case NAL_DPC: - 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) - decode_slice(h); - break; - case NAL_SEI: - break; - case NAL_SPS: - init_get_bits(&s->gb, ptr, bit_length); - decode_seq_parameter_set(h); - - if(s->flags& CODEC_FLAG_LOW_DELAY) - s->low_delay=1; - - avctx->has_b_frames= !s->low_delay; - break; - case NAL_PPS: - init_get_bits(&s->gb, ptr, bit_length); - - decode_picture_parameter_set(h); - - break; - case NAL_PICTURE_DELIMITER: - break; - case NAL_FILTER_DATA: - break; - } - - //FIXME move after where irt is set - s->current_picture.pict_type= s->pict_type; - s->current_picture.key_frame= s->pict_type == I_TYPE; - } - - if(!s->current_picture_ptr) return buf_index; //no frame - - h->prev_frame_num_offset= h->frame_num_offset; - h->prev_frame_num= h->frame_num; - if(s->current_picture_ptr->reference){ - h->prev_poc_msb= h->poc_msb; - h->prev_poc_lsb= h->poc_lsb; - } - if(s->current_picture_ptr->reference) - execute_ref_pic_marking(h, h->mmco, h->mmco_index); - else - assert(h->mmco_index==0); - - ff_er_frame_end(s); - MPV_frame_end(s); - - return buf_index; -} - -/** - * retunrs the number of bytes consumed for building the current frame - */ -static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){ - if(s->flags&CODEC_FLAG_TRUNCATED){ - pos -= s->parse_context.last_index; - if(pos<0) pos=0; // FIXME remove (uneeded?) - - return pos; - }else{ - if(pos==0) pos=1; //avoid infinite loops (i doubt thats needed but ...) - if(pos+10>buf_size) pos=buf_size; // oops ;) - - return pos; - } -} - -static int decode_frame(AVCodecContext *avctx, - void *data, int *data_size, - uint8_t *buf, int buf_size) -{ - H264Context *h = avctx->priv_data; - MpegEncContext *s = &h->s; - AVFrame *pict = data; - int buf_index; - - s->flags= avctx->flags; - - *data_size = 0; - - /* no supplementary picture */ - if (buf_size == 0) { - return 0; - } - - if(s->flags&CODEC_FLAG_TRUNCATED){ - int next= find_frame_end(s, buf, buf_size); - - if( ff_combine_frame(s, next, &buf, &buf_size) < 0 ) - return buf_size; -//printf("next:%d buf_size:%d last_index:%d\n", next, buf_size, s->parse_context.last_index); - } - - if(s->avctx->extradata_size && s->picture_number==0){ - if(0 < decode_nal_units(h, s->avctx->extradata, s->avctx->extradata_size) ) - return -1; - } - - buf_index=decode_nal_units(h, buf, buf_size); - if(buf_index < 0) - return -1; - - //FIXME do something with unavailable reference frames - -// if(ret==FRAME_SKIPED) return get_consumed_bytes(s, buf_index, buf_size); -#if 0 - if(s->pict_type==B_TYPE || s->low_delay){ - *pict= *(AVFrame*)&s->current_picture; - } else { - *pict= *(AVFrame*)&s->last_picture; - } -#endif - if(!s->current_picture_ptr){ - fprintf(stderr, "error, NO frame\n"); - return -1; - } - - *pict= *(AVFrame*)&s->current_picture; //FIXME - ff_print_debug_info(s, s->current_picture_ptr); - assert(pict->data[0]); -//printf("out %d\n", (int)pict->data[0]); -#if 0 //? - - /* Return the Picture timestamp as the frame number */ - /* we substract 1 because it is added on utils.c */ - avctx->frame_number = s->picture_number - 1; -#endif -#if 0 - /* dont output the last pic after seeking */ - if(s->last_picture_ptr || s->low_delay) - //Note this isnt a issue as a IDR pic should flush teh buffers -#endif - *data_size = sizeof(AVFrame); - return get_consumed_bytes(s, buf_index, buf_size); -} -#if 0 -static inline void fill_mb_avail(H264Context *h){ - MpegEncContext * const s = &h->s; - const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; - - if(s->mb_y){ - h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num; - h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num; - h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num; - }else{ - h->mb_avail[0]= - h->mb_avail[1]= - h->mb_avail[2]= 0; - } - h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num; - h->mb_avail[4]= 1; //FIXME move out - h->mb_avail[5]= 0; //FIXME move out -} -#endif - -#if 0 //selftest -#define COUNT 8000 -#define SIZE (COUNT*40) -int main(){ - int i; - uint8_t temp[SIZE]; - PutBitContext pb; - GetBitContext gb; -// int int_temp[10000]; - DSPContext dsp; - AVCodecContext avctx; - - dsputil_init(&dsp, &avctx); - - init_put_bits(&pb, temp, SIZE, NULL, NULL); - printf("testing unsigned exp golomb\n"); - for(i=0; ipriv_data; - MpegEncContext *s = &h->s; - - free_tables(h); //FIXME cleanup init stuff perhaps - MPV_common_end(s); - -// memset(h, 0, sizeof(H264Context)); - - return 0; -} - - -AVCodec h264_decoder = { - "h264", - CODEC_TYPE_VIDEO, - CODEC_ID_H264, - sizeof(H264Context), - decode_init, - NULL, - decode_end, - decode_frame, - /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED, -}; - -#include "svq3.c"