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3149 lines
114 KiB
3149 lines
114 KiB
/* |
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* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder |
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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/** |
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* @file libavcodec/h264.c |
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* H.264 / AVC / MPEG4 part10 codec. |
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* @author Michael Niedermayer <michaelni@gmx.at> |
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*/ |
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|
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#include "internal.h" |
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#include "dsputil.h" |
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#include "avcodec.h" |
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#include "mpegvideo.h" |
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#include "h264.h" |
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#include "h264data.h" |
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#include "h264_mvpred.h" |
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#include "h264_parser.h" |
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#include "golomb.h" |
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#include "mathops.h" |
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#include "rectangle.h" |
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#include "vdpau_internal.h" |
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|
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#include "cabac.h" |
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|
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//#undef NDEBUG |
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#include <assert.h> |
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static const uint8_t rem6[52]={ |
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0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, |
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}; |
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|
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static const uint8_t div6[52]={ |
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, |
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}; |
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|
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void ff_h264_write_back_intra_pred_mode(H264Context *h){ |
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int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[h->mb_xy]; |
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|
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AV_COPY32(mode, h->intra4x4_pred_mode_cache + 4 + 8*4); |
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mode[4]= h->intra4x4_pred_mode_cache[7+8*3]; |
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mode[5]= h->intra4x4_pred_mode_cache[7+8*2]; |
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mode[6]= h->intra4x4_pred_mode_cache[7+8*1]; |
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} |
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|
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/** |
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks. |
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*/ |
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int ff_h264_check_intra4x4_pred_mode(H264Context *h){ |
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MpegEncContext * const s = &h->s; |
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static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0}; |
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static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED}; |
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int i; |
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|
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if(!(h->top_samples_available&0x8000)){ |
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for(i=0; i<4; i++){ |
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int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ]; |
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if(status<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y); |
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return -1; |
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} else if(status){ |
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h->intra4x4_pred_mode_cache[scan8[0] + i]= status; |
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} |
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} |
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} |
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|
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if((h->left_samples_available&0x8888)!=0x8888){ |
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static const int mask[4]={0x8000,0x2000,0x80,0x20}; |
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for(i=0; i<4; i++){ |
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if(!(h->left_samples_available&mask[i])){ |
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int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ]; |
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if(status<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y); |
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return -1; |
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} else if(status){ |
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h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status; |
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} |
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} |
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} |
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} |
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|
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return 0; |
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} //FIXME cleanup like ff_h264_check_intra_pred_mode |
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|
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/** |
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks. |
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*/ |
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int ff_h264_check_intra_pred_mode(H264Context *h, int mode){ |
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MpegEncContext * const s = &h->s; |
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static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1}; |
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static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8}; |
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if(mode > 6U) { |
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av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y); |
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return -1; |
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} |
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if(!(h->top_samples_available&0x8000)){ |
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mode= top[ mode ]; |
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if(mode<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y); |
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return -1; |
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} |
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} |
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if((h->left_samples_available&0x8080) != 0x8080){ |
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mode= left[ mode ]; |
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if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred |
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mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8); |
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} |
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if(mode<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y); |
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return -1; |
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} |
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} |
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return mode; |
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} |
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const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){ |
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int i, si, di; |
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uint8_t *dst; |
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int bufidx; |
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|
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// src[0]&0x80; //forbidden bit |
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h->nal_ref_idc= src[0]>>5; |
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h->nal_unit_type= src[0]&0x1F; |
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src++; length--; |
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#if 0 |
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for(i=0; i<length; i++) |
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printf("%2X ", src[i]); |
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#endif |
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#if HAVE_FAST_UNALIGNED |
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# if HAVE_FAST_64BIT |
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# define RS 7 |
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for(i=0; i+1<length; i+=9){ |
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if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL)) |
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# else |
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# define RS 3 |
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for(i=0; i+1<length; i+=5){ |
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if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U)) |
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# endif |
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continue; |
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if(i>0 && !src[i]) i--; |
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while(src[i]) i++; |
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#else |
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# define RS 0 |
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for(i=0; i+1<length; i+=2){ |
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if(src[i]) continue; |
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if(i>0 && src[i-1]==0) i--; |
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#endif |
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if(i+2<length && src[i+1]==0 && src[i+2]<=3){ |
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if(src[i+2]!=3){ |
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/* startcode, so we must be past the end */ |
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length=i; |
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} |
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break; |
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} |
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i-= RS; |
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} |
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|
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if(i>=length-1){ //no escaped 0 |
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*dst_length= length; |
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*consumed= length+1; //+1 for the header |
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return src; |
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} |
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bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data |
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av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE); |
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dst= h->rbsp_buffer[bufidx]; |
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|
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if (dst == NULL){ |
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return NULL; |
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} |
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//printf("decoding esc\n"); |
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memcpy(dst, src, i); |
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si=di=i; |
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while(si+2<length){ |
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//remove escapes (very rare 1:2^22) |
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if(src[si+2]>3){ |
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dst[di++]= src[si++]; |
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dst[di++]= src[si++]; |
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}else if(src[si]==0 && src[si+1]==0){ |
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if(src[si+2]==3){ //escape |
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dst[di++]= 0; |
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dst[di++]= 0; |
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si+=3; |
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continue; |
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}else //next start code |
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goto nsc; |
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} |
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dst[di++]= src[si++]; |
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} |
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while(si<length) |
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dst[di++]= src[si++]; |
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nsc: |
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memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE); |
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*dst_length= di; |
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*consumed= si + 1;//+1 for the header |
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//FIXME store exact number of bits in the getbitcontext (it is needed for decoding) |
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return dst; |
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} |
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int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){ |
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int v= *src; |
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int r; |
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tprintf(h->s.avctx, "rbsp trailing %X\n", v); |
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for(r=1; r<9; r++){ |
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if(v&1) return r; |
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v>>=1; |
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} |
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return 0; |
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} |
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|
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/** |
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* IDCT transforms the 16 dc values and dequantizes them. |
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* @param qp quantization parameter |
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*/ |
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static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){ |
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#define stride 16 |
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int i; |
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int temp[16]; //FIXME check if this is a good idea |
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static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride}; |
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static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride}; |
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//memset(block, 64, 2*256); |
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//return; |
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for(i=0; i<4; i++){ |
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const int offset= y_offset[i]; |
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const int z0= block[offset+stride*0] + block[offset+stride*4]; |
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const int z1= block[offset+stride*0] - block[offset+stride*4]; |
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const int z2= block[offset+stride*1] - block[offset+stride*5]; |
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const int z3= block[offset+stride*1] + block[offset+stride*5]; |
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temp[4*i+0]= z0+z3; |
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temp[4*i+1]= z1+z2; |
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temp[4*i+2]= z1-z2; |
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temp[4*i+3]= z0-z3; |
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} |
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for(i=0; i<4; i++){ |
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const int offset= x_offset[i]; |
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const int z0= temp[4*0+i] + temp[4*2+i]; |
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const int z1= temp[4*0+i] - temp[4*2+i]; |
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const int z2= temp[4*1+i] - temp[4*3+i]; |
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const int z3= temp[4*1+i] + temp[4*3+i]; |
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block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_residual |
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block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8)); |
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block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8)); |
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block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8)); |
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} |
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} |
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#if 0 |
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/** |
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* DCT transforms the 16 dc values. |
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* @param qp quantization parameter ??? FIXME |
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*/ |
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static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){ |
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// const int qmul= dequant_coeff[qp][0]; |
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int i; |
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int temp[16]; //FIXME check if this is a good idea |
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static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride}; |
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static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride}; |
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|
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for(i=0; i<4; i++){ |
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const int offset= y_offset[i]; |
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const int z0= block[offset+stride*0] + block[offset+stride*4]; |
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const int z1= block[offset+stride*0] - block[offset+stride*4]; |
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const int z2= block[offset+stride*1] - block[offset+stride*5]; |
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const int z3= block[offset+stride*1] + block[offset+stride*5]; |
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temp[4*i+0]= z0+z3; |
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temp[4*i+1]= z1+z2; |
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temp[4*i+2]= z1-z2; |
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temp[4*i+3]= z0-z3; |
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} |
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for(i=0; i<4; i++){ |
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const int offset= x_offset[i]; |
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const int z0= temp[4*0+i] + temp[4*2+i]; |
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const int z1= temp[4*0+i] - temp[4*2+i]; |
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const int z2= temp[4*1+i] - temp[4*3+i]; |
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const int z3= temp[4*1+i] + temp[4*3+i]; |
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|
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block[stride*0 +offset]= (z0 + z3)>>1; |
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block[stride*2 +offset]= (z1 + z2)>>1; |
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block[stride*8 +offset]= (z1 - z2)>>1; |
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block[stride*10+offset]= (z0 - z3)>>1; |
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} |
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} |
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#endif |
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|
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#undef xStride |
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#undef stride |
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|
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static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){ |
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const int stride= 16*2; |
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const int xStride= 16; |
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int a,b,c,d,e; |
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|
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a= block[stride*0 + xStride*0]; |
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b= block[stride*0 + xStride*1]; |
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c= block[stride*1 + xStride*0]; |
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d= block[stride*1 + xStride*1]; |
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|
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e= a-b; |
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a= a+b; |
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b= c-d; |
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c= c+d; |
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|
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block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7; |
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block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7; |
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block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7; |
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block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7; |
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} |
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|
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#if 0 |
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static void chroma_dc_dct_c(DCTELEM *block){ |
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const int stride= 16*2; |
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const int xStride= 16; |
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int a,b,c,d,e; |
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|
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a= block[stride*0 + xStride*0]; |
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b= block[stride*0 + xStride*1]; |
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c= block[stride*1 + xStride*0]; |
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d= block[stride*1 + xStride*1]; |
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|
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e= a-b; |
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a= a+b; |
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b= c-d; |
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c= c+d; |
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|
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block[stride*0 + xStride*0]= (a+c); |
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block[stride*0 + xStride*1]= (e+b); |
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block[stride*1 + xStride*0]= (a-c); |
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block[stride*1 + xStride*1]= (e-b); |
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} |
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#endif |
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|
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static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list, |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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int src_x_offset, int src_y_offset, |
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qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){ |
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MpegEncContext * const s = &h->s; |
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const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8; |
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int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8; |
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const int luma_xy= (mx&3) + ((my&3)<<2); |
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uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize; |
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uint8_t * src_cb, * src_cr; |
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int extra_width= h->emu_edge_width; |
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int extra_height= h->emu_edge_height; |
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int emu=0; |
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const int full_mx= mx>>2; |
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const int full_my= my>>2; |
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const int pic_width = 16*s->mb_width; |
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const int pic_height = 16*s->mb_height >> MB_FIELD; |
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|
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if(mx&7) extra_width -= 3; |
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if(my&7) extra_height -= 3; |
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|
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if( full_mx < 0-extra_width |
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|| full_my < 0-extra_height |
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|| full_mx + 16/*FIXME*/ > pic_width + extra_width |
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|| full_my + 16/*FIXME*/ > pic_height + extra_height){ |
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ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height); |
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src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize; |
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emu=1; |
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} |
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|
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qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps? |
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if(!square){ |
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qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize); |
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} |
|
|
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if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return; |
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|
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if(MB_FIELD){ |
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// chroma offset when predicting from a field of opposite parity |
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my += 2 * ((s->mb_y & 1) - (pic->reference - 1)); |
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emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1); |
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} |
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src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize; |
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src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize; |
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|
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if(emu){ |
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ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); |
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src_cb= s->edge_emu_buffer; |
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} |
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chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7); |
|
|
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if(emu){ |
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ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); |
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src_cr= s->edge_emu_buffer; |
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} |
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chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7); |
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} |
|
|
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static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta, |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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int x_offset, int y_offset, |
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qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
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qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, |
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int list0, int list1){ |
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MpegEncContext * const s = &h->s; |
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qpel_mc_func *qpix_op= qpix_put; |
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h264_chroma_mc_func chroma_op= chroma_put; |
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|
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dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize; |
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dest_cb += x_offset + y_offset*h->mb_uvlinesize; |
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dest_cr += x_offset + y_offset*h->mb_uvlinesize; |
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x_offset += 8*s->mb_x; |
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y_offset += 8*(s->mb_y >> MB_FIELD); |
|
|
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if(list0){ |
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Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ]; |
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mc_dir_part(h, ref, n, square, chroma_height, delta, 0, |
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dest_y, dest_cb, dest_cr, x_offset, y_offset, |
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qpix_op, chroma_op); |
|
|
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qpix_op= qpix_avg; |
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chroma_op= chroma_avg; |
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} |
|
|
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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 inline void mc_part_weighted(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, |
|
h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op, |
|
h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg, |
|
int list0, int list1){ |
|
MpegEncContext * const s = &h->s; |
|
|
|
dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize; |
|
dest_cb += x_offset + y_offset*h->mb_uvlinesize; |
|
dest_cr += x_offset + y_offset*h->mb_uvlinesize; |
|
x_offset += 8*s->mb_x; |
|
y_offset += 8*(s->mb_y >> MB_FIELD); |
|
|
|
if(list0 && list1){ |
|
/* don't optimize for luma-only case, since B-frames usually |
|
* use implicit weights => chroma too. */ |
|
uint8_t *tmp_cb = s->obmc_scratchpad; |
|
uint8_t *tmp_cr = s->obmc_scratchpad + 8; |
|
uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize; |
|
int refn0 = h->ref_cache[0][ scan8[n] ]; |
|
int refn1 = h->ref_cache[1][ scan8[n] ]; |
|
|
|
mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0, |
|
dest_y, dest_cb, dest_cr, |
|
x_offset, y_offset, qpix_put, chroma_put); |
|
mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1, |
|
tmp_y, tmp_cb, tmp_cr, |
|
x_offset, y_offset, qpix_put, chroma_put); |
|
|
|
if(h->use_weight == 2){ |
|
int weight0 = h->implicit_weight[refn0][refn1]; |
|
int weight1 = 64 - weight0; |
|
luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0); |
|
chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0); |
|
chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0); |
|
}else{ |
|
luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom, |
|
h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0], |
|
h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]); |
|
chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
|
h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0], |
|
h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]); |
|
chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
|
h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0], |
|
h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]); |
|
} |
|
}else{ |
|
int list = list1 ? 1 : 0; |
|
int refn = h->ref_cache[list][ scan8[n] ]; |
|
Picture *ref= &h->ref_list[list][refn]; |
|
mc_dir_part(h, ref, n, square, chroma_height, delta, list, |
|
dest_y, dest_cb, dest_cr, x_offset, y_offset, |
|
qpix_put, chroma_put); |
|
|
|
luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom, |
|
h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]); |
|
if(h->use_weight_chroma){ |
|
chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
|
h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]); |
|
chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
|
h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]); |
|
} |
|
} |
|
} |
|
|
|
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, |
|
h264_weight_func *weight_op, h264_biweight_func *weight_avg, |
|
int list0, int list1){ |
|
if((h->use_weight==2 && list0 && list1 |
|
&& (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32)) |
|
|| h->use_weight==1) |
|
mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr, |
|
x_offset, y_offset, qpix_put, chroma_put, |
|
weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1); |
|
else |
|
mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr, |
|
x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1); |
|
} |
|
|
|
static inline void prefetch_motion(H264Context *h, int list){ |
|
/* fetch pixels for estimated mv 4 macroblocks ahead |
|
* optimized for 64byte cache lines */ |
|
MpegEncContext * const s = &h->s; |
|
const int refn = h->ref_cache[list][scan8[0]]; |
|
if(refn >= 0){ |
|
const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8; |
|
const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y; |
|
uint8_t **src= h->ref_list[list][refn].data; |
|
int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64; |
|
s->dsp.prefetch(src[0]+off, s->linesize, 4); |
|
off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64; |
|
s->dsp.prefetch(src[1]+off, src[2]-src[1], 2); |
|
} |
|
} |
|
|
|
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), |
|
h264_weight_func *weight_op, h264_biweight_func *weight_avg){ |
|
MpegEncContext * const s = &h->s; |
|
const int mb_xy= h->mb_xy; |
|
const int mb_type= s->current_picture.mb_type[mb_xy]; |
|
|
|
assert(IS_INTER(mb_type)); |
|
|
|
prefetch_motion(h, 0); |
|
|
|
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], |
|
weight_op, weight_avg, |
|
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], |
|
&weight_op[1], &weight_avg[1], |
|
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], |
|
&weight_op[1], &weight_avg[1], |
|
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*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0, |
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
|
&weight_op[2], &weight_avg[2], |
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
|
mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0, |
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
|
&weight_op[2], &weight_avg[2], |
|
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], |
|
&weight_op[3], &weight_avg[3], |
|
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], |
|
&weight_op[4], &weight_avg[4], |
|
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], |
|
&weight_op[4], &weight_avg[4], |
|
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*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
|
&weight_op[5], &weight_avg[5], |
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
|
mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset, |
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
|
&weight_op[5], &weight_avg[5], |
|
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], |
|
&weight_op[6], &weight_avg[6], |
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
|
} |
|
} |
|
} |
|
} |
|
|
|
prefetch_motion(h, 1); |
|
} |
|
|
|
|
|
static void free_tables(H264Context *h){ |
|
int i; |
|
H264Context *hx; |
|
av_freep(&h->intra4x4_pred_mode); |
|
av_freep(&h->chroma_pred_mode_table); |
|
av_freep(&h->cbp_table); |
|
av_freep(&h->mvd_table[0]); |
|
av_freep(&h->mvd_table[1]); |
|
av_freep(&h->direct_table); |
|
av_freep(&h->non_zero_count); |
|
av_freep(&h->slice_table_base); |
|
h->slice_table= NULL; |
|
av_freep(&h->list_counts); |
|
|
|
av_freep(&h->mb2b_xy); |
|
av_freep(&h->mb2br_xy); |
|
|
|
for(i = 0; i < MAX_THREADS; i++) { |
|
hx = h->thread_context[i]; |
|
if(!hx) continue; |
|
av_freep(&hx->top_borders[1]); |
|
av_freep(&hx->top_borders[0]); |
|
av_freep(&hx->s.obmc_scratchpad); |
|
av_freep(&hx->rbsp_buffer[1]); |
|
av_freep(&hx->rbsp_buffer[0]); |
|
hx->rbsp_buffer_size[0] = 0; |
|
hx->rbsp_buffer_size[1] = 0; |
|
if (i) av_freep(&h->thread_context[i]); |
|
} |
|
} |
|
|
|
static void init_dequant8_coeff_table(H264Context *h){ |
|
int i,q,x; |
|
const int transpose = (h->s.dsp.h264_idct8_add != ff_h264_idct8_add_c); //FIXME ugly |
|
h->dequant8_coeff[0] = h->dequant8_buffer[0]; |
|
h->dequant8_coeff[1] = h->dequant8_buffer[1]; |
|
|
|
for(i=0; i<2; i++ ){ |
|
if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){ |
|
h->dequant8_coeff[1] = h->dequant8_buffer[0]; |
|
break; |
|
} |
|
|
|
for(q=0; q<52; q++){ |
|
int shift = div6[q]; |
|
int idx = rem6[q]; |
|
for(x=0; x<64; x++) |
|
h->dequant8_coeff[i][q][transpose ? (x>>3)|((x&7)<<3) : x] = |
|
((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] * |
|
h->pps.scaling_matrix8[i][x]) << shift; |
|
} |
|
} |
|
} |
|
|
|
static void init_dequant4_coeff_table(H264Context *h){ |
|
int i,j,q,x; |
|
const int transpose = (h->s.dsp.h264_idct_add != ff_h264_idct_add_c); //FIXME ugly |
|
for(i=0; i<6; i++ ){ |
|
h->dequant4_coeff[i] = h->dequant4_buffer[i]; |
|
for(j=0; j<i; j++){ |
|
if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){ |
|
h->dequant4_coeff[i] = h->dequant4_buffer[j]; |
|
break; |
|
} |
|
} |
|
if(j<i) |
|
continue; |
|
|
|
for(q=0; q<52; q++){ |
|
int shift = div6[q] + 2; |
|
int idx = rem6[q]; |
|
for(x=0; x<16; x++) |
|
h->dequant4_coeff[i][q][transpose ? (x>>2)|((x<<2)&0xF) : x] = |
|
((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] * |
|
h->pps.scaling_matrix4[i][x]) << shift; |
|
} |
|
} |
|
} |
|
|
|
static void init_dequant_tables(H264Context *h){ |
|
int i,x; |
|
init_dequant4_coeff_table(h); |
|
if(h->pps.transform_8x8_mode) |
|
init_dequant8_coeff_table(h); |
|
if(h->sps.transform_bypass){ |
|
for(i=0; i<6; i++) |
|
for(x=0; x<16; x++) |
|
h->dequant4_coeff[i][0][x] = 1<<6; |
|
if(h->pps.transform_8x8_mode) |
|
for(i=0; i<2; i++) |
|
for(x=0; x<64; x++) |
|
h->dequant8_coeff[i][0][x] = 1<<6; |
|
} |
|
} |
|
|
|
|
|
int ff_h264_alloc_tables(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
const int big_mb_num= s->mb_stride * (s->mb_height+1); |
|
const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count; |
|
int x,y; |
|
|
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail) |
|
|
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 32 * sizeof(uint8_t), fail) |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail) |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail) |
|
|
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail) |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail); |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail); |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail); |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail) |
|
|
|
memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base)); |
|
h->slice_table= h->slice_table_base + s->mb_stride*2 + 1; |
|
|
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail); |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail); |
|
for(y=0; y<s->mb_height; y++){ |
|
for(x=0; x<s->mb_width; x++){ |
|
const int mb_xy= x + y*s->mb_stride; |
|
const int b_xy = 4*x + 4*y*h->b_stride; |
|
|
|
h->mb2b_xy [mb_xy]= b_xy; |
|
h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride))); |
|
} |
|
} |
|
|
|
s->obmc_scratchpad = NULL; |
|
|
|
if(!h->dequant4_coeff[0]) |
|
init_dequant_tables(h); |
|
|
|
return 0; |
|
fail: |
|
free_tables(h); |
|
return -1; |
|
} |
|
|
|
/** |
|
* Mimic alloc_tables(), but for every context thread. |
|
*/ |
|
static void clone_tables(H264Context *dst, H264Context *src, int i){ |
|
MpegEncContext * const s = &src->s; |
|
dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride; |
|
dst->non_zero_count = src->non_zero_count; |
|
dst->slice_table = src->slice_table; |
|
dst->cbp_table = src->cbp_table; |
|
dst->mb2b_xy = src->mb2b_xy; |
|
dst->mb2br_xy = src->mb2br_xy; |
|
dst->chroma_pred_mode_table = src->chroma_pred_mode_table; |
|
dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride; |
|
dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride; |
|
dst->direct_table = src->direct_table; |
|
dst->list_counts = src->list_counts; |
|
|
|
dst->s.obmc_scratchpad = NULL; |
|
ff_h264_pred_init(&dst->hpc, src->s.codec_id); |
|
} |
|
|
|
/** |
|
* Init context |
|
* Allocate buffers which are not shared amongst multiple threads. |
|
*/ |
|
static int context_init(H264Context *h){ |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t), fail) |
|
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t), fail) |
|
|
|
h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] = |
|
h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE; |
|
|
|
return 0; |
|
fail: |
|
return -1; // free_tables will clean up for us |
|
} |
|
|
|
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size); |
|
|
|
static av_cold 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; |
|
|
|
ff_h264_pred_init(&h->hpc, s->codec_id); |
|
|
|
h->dequant_coeff_pps= -1; |
|
s->unrestricted_mv=1; |
|
s->decode=1; //FIXME |
|
|
|
dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early |
|
|
|
memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t)); |
|
memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t)); |
|
} |
|
|
|
av_cold int ff_h264_decode_init(AVCodecContext *avctx){ |
|
H264Context *h= avctx->priv_data; |
|
MpegEncContext * const s = &h->s; |
|
|
|
MPV_decode_defaults(s); |
|
|
|
s->avctx = avctx; |
|
common_init(h); |
|
|
|
s->out_format = FMT_H264; |
|
s->workaround_bugs= avctx->workaround_bugs; |
|
|
|
// set defaults |
|
// s->decode_mb= ff_h263_decode_mb; |
|
s->quarter_sample = 1; |
|
if(!avctx->has_b_frames) |
|
s->low_delay= 1; |
|
|
|
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT; |
|
|
|
ff_h264_decode_init_vlc(); |
|
|
|
h->thread_context[0] = h; |
|
h->outputed_poc = INT_MIN; |
|
h->prev_poc_msb= 1<<16; |
|
h->x264_build = -1; |
|
ff_h264_reset_sei(h); |
|
if(avctx->codec_id == CODEC_ID_H264){ |
|
if(avctx->ticks_per_frame == 1){ |
|
s->avctx->time_base.den *=2; |
|
} |
|
avctx->ticks_per_frame = 2; |
|
} |
|
|
|
if(avctx->extradata_size > 0 && avctx->extradata && *(char *)avctx->extradata == 1){ |
|
int i, cnt, nalsize; |
|
unsigned char *p = avctx->extradata; |
|
|
|
h->is_avc = 1; |
|
|
|
if(avctx->extradata_size < 7) { |
|
av_log(avctx, AV_LOG_ERROR, "avcC too short\n"); |
|
return -1; |
|
} |
|
/* sps and pps in the avcC always have length coded with 2 bytes, |
|
so put a fake nal_length_size = 2 while parsing them */ |
|
h->nal_length_size = 2; |
|
// Decode sps from avcC |
|
cnt = *(p+5) & 0x1f; // Number of sps |
|
p += 6; |
|
for (i = 0; i < cnt; i++) { |
|
nalsize = AV_RB16(p) + 2; |
|
if(decode_nal_units(h, p, nalsize) < 0) { |
|
av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i); |
|
return -1; |
|
} |
|
p += nalsize; |
|
} |
|
// Decode pps from avcC |
|
cnt = *(p++); // Number of pps |
|
for (i = 0; i < cnt; i++) { |
|
nalsize = AV_RB16(p) + 2; |
|
if(decode_nal_units(h, p, nalsize) != nalsize) { |
|
av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i); |
|
return -1; |
|
} |
|
p += nalsize; |
|
} |
|
// Now store right nal length size, that will be use to parse all other nals |
|
h->nal_length_size = ((*(((char*)(avctx->extradata))+4))&0x03)+1; |
|
} else { |
|
h->is_avc = 0; |
|
if(decode_nal_units(h, s->avctx->extradata, s->avctx->extradata_size) < 0) |
|
return -1; |
|
} |
|
if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){ |
|
s->avctx->has_b_frames = h->sps.num_reorder_frames; |
|
s->low_delay = 0; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ff_h264_frame_start(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
int i; |
|
|
|
if(MPV_frame_start(s, s->avctx) < 0) |
|
return -1; |
|
ff_er_frame_start(s); |
|
/* |
|
* MPV_frame_start uses pict_type to derive key_frame. |
|
* This is incorrect for H.264; IDR markings must be used. |
|
* Zero here; IDR markings per slice in frame or fields are ORed in later. |
|
* See decode_nal_units(). |
|
*/ |
|
s->current_picture_ptr->key_frame= 0; |
|
s->current_picture_ptr->mmco_reset= 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->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((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); |
|
h->block_offset[24+16+i]= |
|
h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3); |
|
} |
|
|
|
/* can't be in alloc_tables because linesize isn't known there. |
|
* FIXME: redo bipred weight to not require extra buffer? */ |
|
for(i = 0; i < s->avctx->thread_count; i++) |
|
if(!h->thread_context[i]->s.obmc_scratchpad) |
|
h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize); |
|
|
|
/* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/ |
|
memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table)); |
|
|
|
// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1; |
|
|
|
// We mark the current picture as non-reference after allocating it, so |
|
// that if we break out due to an error it can be released automatically |
|
// in the next MPV_frame_start(). |
|
// SVQ3 as well as most other codecs have only last/next/current and thus |
|
// get released even with set reference, besides SVQ3 and others do not |
|
// mark frames as reference later "naturally". |
|
if(s->codec_id != CODEC_ID_SVQ3) |
|
s->current_picture_ptr->reference= 0; |
|
|
|
s->current_picture_ptr->field_poc[0]= |
|
s->current_picture_ptr->field_poc[1]= INT_MAX; |
|
assert(s->current_picture_ptr->long_ref==0); |
|
|
|
return 0; |
|
} |
|
|
|
static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple){ |
|
MpegEncContext * const s = &h->s; |
|
uint8_t *top_border; |
|
int top_idx = 1; |
|
|
|
src_y -= linesize; |
|
src_cb -= uvlinesize; |
|
src_cr -= uvlinesize; |
|
|
|
if(!simple && FRAME_MBAFF){ |
|
if(s->mb_y&1){ |
|
if(!MB_MBAFF){ |
|
top_border = h->top_borders[0][s->mb_x]; |
|
AV_COPY128(top_border, src_y + 15*linesize); |
|
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
AV_COPY64(top_border+16, src_cb+7*uvlinesize); |
|
AV_COPY64(top_border+24, src_cr+7*uvlinesize); |
|
} |
|
} |
|
}else if(MB_MBAFF){ |
|
top_idx = 0; |
|
}else |
|
return; |
|
} |
|
|
|
top_border = h->top_borders[top_idx][s->mb_x]; |
|
// There are two lines saved, the line above the the top macroblock of a pair, |
|
// and the line above the bottom macroblock |
|
AV_COPY128(top_border, src_y + 16*linesize); |
|
|
|
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
AV_COPY64(top_border+16, src_cb+8*uvlinesize); |
|
AV_COPY64(top_border+24, src_cr+8*uvlinesize); |
|
} |
|
} |
|
|
|
static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg, int simple){ |
|
MpegEncContext * const s = &h->s; |
|
int deblock_left; |
|
int deblock_top; |
|
int top_idx = 1; |
|
uint8_t *top_border_m1; |
|
uint8_t *top_border; |
|
|
|
if(!simple && FRAME_MBAFF){ |
|
if(s->mb_y&1){ |
|
if(!MB_MBAFF) |
|
return; |
|
}else{ |
|
top_idx = MB_MBAFF ? 0 : 1; |
|
} |
|
} |
|
|
|
if(h->deblocking_filter == 2) { |
|
deblock_left = h->left_type[0]; |
|
deblock_top = h->top_type; |
|
} else { |
|
deblock_left = (s->mb_x > 0); |
|
deblock_top = (s->mb_y > !!MB_FIELD); |
|
} |
|
|
|
src_y -= linesize + 1; |
|
src_cb -= uvlinesize + 1; |
|
src_cr -= uvlinesize + 1; |
|
|
|
top_border_m1 = h->top_borders[top_idx][s->mb_x-1]; |
|
top_border = h->top_borders[top_idx][s->mb_x]; |
|
|
|
#define XCHG(a,b,xchg)\ |
|
if (xchg) AV_SWAP64(b,a);\ |
|
else AV_COPY64(b,a); |
|
|
|
if(deblock_top){ |
|
if(deblock_left){ |
|
XCHG(top_border_m1+8, src_y -7, 1); |
|
} |
|
XCHG(top_border+0, src_y +1, xchg); |
|
XCHG(top_border+8, src_y +9, 1); |
|
if(s->mb_x+1 < s->mb_width){ |
|
XCHG(h->top_borders[top_idx][s->mb_x+1], src_y +17, 1); |
|
} |
|
} |
|
|
|
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
if(deblock_top){ |
|
if(deblock_left){ |
|
XCHG(top_border_m1+16, src_cb -7, 1); |
|
XCHG(top_border_m1+24, src_cr -7, 1); |
|
} |
|
XCHG(top_border+16, src_cb+1, 1); |
|
XCHG(top_border+24, src_cr+1, 1); |
|
} |
|
} |
|
} |
|
|
|
static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){ |
|
MpegEncContext * const s = &h->s; |
|
const int mb_x= s->mb_x; |
|
const int mb_y= s->mb_y; |
|
const int mb_xy= h->mb_xy; |
|
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; |
|
int *block_offset = &h->block_offset[0]; |
|
const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass); |
|
/* is_h264 should always be true if SVQ3 is disabled. */ |
|
const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264; |
|
void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride); |
|
void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride); |
|
|
|
dest_y = s->current_picture.data[0] + (mb_x + mb_y * s->linesize ) * 16; |
|
dest_cb = s->current_picture.data[1] + (mb_x + mb_y * s->uvlinesize) * 8; |
|
dest_cr = s->current_picture.data[2] + (mb_x + mb_y * s->uvlinesize) * 8; |
|
|
|
s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4); |
|
s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2); |
|
|
|
h->list_counts[mb_xy]= h->list_count; |
|
|
|
if (!simple && MB_FIELD) { |
|
linesize = h->mb_linesize = s->linesize * 2; |
|
uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2; |
|
block_offset = &h->block_offset[24]; |
|
if(mb_y&1){ //FIXME move out of this function? |
|
dest_y -= s->linesize*15; |
|
dest_cb-= s->uvlinesize*7; |
|
dest_cr-= s->uvlinesize*7; |
|
} |
|
if(FRAME_MBAFF) { |
|
int list; |
|
for(list=0; list<h->list_count; list++){ |
|
if(!USES_LIST(mb_type, list)) |
|
continue; |
|
if(IS_16X16(mb_type)){ |
|
int8_t *ref = &h->ref_cache[list][scan8[0]]; |
|
fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1); |
|
}else{ |
|
for(i=0; i<16; i+=4){ |
|
int ref = h->ref_cache[list][scan8[i]]; |
|
if(ref >= 0) |
|
fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1); |
|
} |
|
} |
|
} |
|
} |
|
} else { |
|
linesize = h->mb_linesize = s->linesize; |
|
uvlinesize = h->mb_uvlinesize = s->uvlinesize; |
|
// dct_offset = s->linesize * 16; |
|
} |
|
|
|
if (!simple && IS_INTRA_PCM(mb_type)) { |
|
for (i=0; i<16; i++) { |
|
memcpy(dest_y + i* linesize, h->mb + i*8, 16); |
|
} |
|
for (i=0; i<8; i++) { |
|
memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8); |
|
memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8); |
|
} |
|
} else { |
|
if(IS_INTRA(mb_type)){ |
|
if(h->deblocking_filter) |
|
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple); |
|
|
|
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize); |
|
h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize); |
|
} |
|
|
|
if(IS_INTRA4x4(mb_type)){ |
|
if(simple || !s->encoding){ |
|
if(IS_8x8DCT(mb_type)){ |
|
if(transform_bypass){ |
|
idct_dc_add = |
|
idct_add = s->dsp.add_pixels8; |
|
}else{ |
|
idct_dc_add = s->dsp.h264_idct8_dc_add; |
|
idct_add = s->dsp.h264_idct8_add; |
|
} |
|
for(i=0; i<16; i+=4){ |
|
uint8_t * const ptr= dest_y + block_offset[i]; |
|
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ]; |
|
if(transform_bypass && h->sps.profile_idc==244 && dir<=1){ |
|
h->hpc.pred8x8l_add[dir](ptr, h->mb + i*16, linesize); |
|
}else{ |
|
const int nnz = h->non_zero_count_cache[ scan8[i] ]; |
|
h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000, |
|
(h->topright_samples_available<<i)&0x4000, linesize); |
|
if(nnz){ |
|
if(nnz == 1 && h->mb[i*16]) |
|
idct_dc_add(ptr, h->mb + i*16, linesize); |
|
else |
|
idct_add (ptr, h->mb + i*16, linesize); |
|
} |
|
} |
|
} |
|
}else{ |
|
if(transform_bypass){ |
|
idct_dc_add = |
|
idct_add = s->dsp.add_pixels4; |
|
}else{ |
|
idct_dc_add = s->dsp.h264_idct_dc_add; |
|
idct_add = s->dsp.h264_idct_add; |
|
} |
|
for(i=0; i<16; i++){ |
|
uint8_t * const ptr= dest_y + block_offset[i]; |
|
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ]; |
|
|
|
if(transform_bypass && h->sps.profile_idc==244 && dir<=1){ |
|
h->hpc.pred4x4_add[dir](ptr, h->mb + i*16, linesize); |
|
}else{ |
|
uint8_t *topright; |
|
int nnz, tr; |
|
if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){ |
|
const int topright_avail= (h->topright_samples_available<<i)&0x8000; |
|
assert(mb_y || linesize <= block_offset[i]); |
|
if(!topright_avail){ |
|
tr= ptr[3 - linesize]*0x01010101; |
|
topright= (uint8_t*) &tr; |
|
}else |
|
topright= ptr + 4 - linesize; |
|
}else |
|
topright= NULL; |
|
|
|
h->hpc.pred4x4[ dir ](ptr, topright, linesize); |
|
nnz = h->non_zero_count_cache[ scan8[i] ]; |
|
if(nnz){ |
|
if(is_h264){ |
|
if(nnz == 1 && h->mb[i*16]) |
|
idct_dc_add(ptr, h->mb + i*16, linesize); |
|
else |
|
idct_add (ptr, h->mb + i*16, linesize); |
|
}else |
|
ff_svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
}else{ |
|
h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize); |
|
if(is_h264){ |
|
if(!transform_bypass) |
|
h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]); |
|
}else |
|
ff_svq3_luma_dc_dequant_idct_c(h->mb, s->qscale); |
|
} |
|
if(h->deblocking_filter) |
|
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple); |
|
}else if(is_h264){ |
|
hl_motion(h, dest_y, dest_cb, dest_cr, |
|
s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab, |
|
s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab, |
|
s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab); |
|
} |
|
|
|
|
|
if(!IS_INTRA4x4(mb_type)){ |
|
if(is_h264){ |
|
if(IS_INTRA16x16(mb_type)){ |
|
if(transform_bypass){ |
|
if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){ |
|
h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb, linesize); |
|
}else{ |
|
for(i=0; i<16; i++){ |
|
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]) |
|
s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + i*16, linesize); |
|
} |
|
} |
|
}else{ |
|
s->dsp.h264_idct_add16intra(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache); |
|
} |
|
}else if(h->cbp&15){ |
|
if(transform_bypass){ |
|
const int di = IS_8x8DCT(mb_type) ? 4 : 1; |
|
idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4; |
|
for(i=0; i<16; i+=di){ |
|
if(h->non_zero_count_cache[ scan8[i] ]){ |
|
idct_add(dest_y + block_offset[i], h->mb + i*16, linesize); |
|
} |
|
} |
|
}else{ |
|
if(IS_8x8DCT(mb_type)){ |
|
s->dsp.h264_idct8_add4(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache); |
|
}else{ |
|
s->dsp.h264_idct_add16(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache); |
|
} |
|
} |
|
} |
|
}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 + block_offset[i]; |
|
ff_svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0); |
|
} |
|
} |
|
} |
|
} |
|
|
|
if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){ |
|
uint8_t *dest[2] = {dest_cb, dest_cr}; |
|
if(transform_bypass){ |
|
if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){ |
|
h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + 16*16, uvlinesize); |
|
h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 20, h->mb + 20*16, uvlinesize); |
|
}else{ |
|
idct_add = s->dsp.add_pixels4; |
|
for(i=16; i<16+8; i++){ |
|
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]) |
|
idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); |
|
} |
|
} |
|
}else{ |
|
chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]); |
|
chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]); |
|
if(is_h264){ |
|
idct_add = s->dsp.h264_idct_add; |
|
idct_dc_add = s->dsp.h264_idct_dc_add; |
|
for(i=16; i<16+8; i++){ |
|
if(h->non_zero_count_cache[ scan8[i] ]) |
|
idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); |
|
else if(h->mb[i*16]) |
|
idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); |
|
} |
|
}else{ |
|
for(i=16; i<16+8; i++){ |
|
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ |
|
uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i]; |
|
ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[s->qscale + 12] - 12, 2); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
} |
|
if(h->cbp || IS_INTRA(mb_type)) |
|
s->dsp.clear_blocks(h->mb); |
|
} |
|
|
|
/** |
|
* Process a macroblock; this case avoids checks for expensive uncommon cases. |
|
*/ |
|
static void hl_decode_mb_simple(H264Context *h){ |
|
hl_decode_mb_internal(h, 1); |
|
} |
|
|
|
/** |
|
* Process a macroblock; this handles edge cases, such as interlacing. |
|
*/ |
|
static void av_noinline hl_decode_mb_complex(H264Context *h){ |
|
hl_decode_mb_internal(h, 0); |
|
} |
|
|
|
void ff_h264_hl_decode_mb(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
const int mb_xy= h->mb_xy; |
|
const int mb_type= s->current_picture.mb_type[mb_xy]; |
|
int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0; |
|
|
|
if (is_complex) |
|
hl_decode_mb_complex(h); |
|
else hl_decode_mb_simple(h); |
|
} |
|
|
|
static int pred_weight_table(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
int list, i; |
|
int luma_def, chroma_def; |
|
|
|
h->use_weight= 0; |
|
h->use_weight_chroma= 0; |
|
h->luma_log2_weight_denom= get_ue_golomb(&s->gb); |
|
h->chroma_log2_weight_denom= get_ue_golomb(&s->gb); |
|
luma_def = 1<<h->luma_log2_weight_denom; |
|
chroma_def = 1<<h->chroma_log2_weight_denom; |
|
|
|
for(list=0; list<2; list++){ |
|
h->luma_weight_flag[list] = 0; |
|
h->chroma_weight_flag[list] = 0; |
|
for(i=0; i<h->ref_count[list]; i++){ |
|
int luma_weight_flag, chroma_weight_flag; |
|
|
|
luma_weight_flag= get_bits1(&s->gb); |
|
if(luma_weight_flag){ |
|
h->luma_weight[i][list][0]= get_se_golomb(&s->gb); |
|
h->luma_weight[i][list][1]= get_se_golomb(&s->gb); |
|
if( h->luma_weight[i][list][0] != luma_def |
|
|| h->luma_weight[i][list][1] != 0) { |
|
h->use_weight= 1; |
|
h->luma_weight_flag[list]= 1; |
|
} |
|
}else{ |
|
h->luma_weight[i][list][0]= luma_def; |
|
h->luma_weight[i][list][1]= 0; |
|
} |
|
|
|
if(CHROMA){ |
|
chroma_weight_flag= get_bits1(&s->gb); |
|
if(chroma_weight_flag){ |
|
int j; |
|
for(j=0; j<2; j++){ |
|
h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb); |
|
h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb); |
|
if( h->chroma_weight[i][list][j][0] != chroma_def |
|
|| h->chroma_weight[i][list][j][1] != 0) { |
|
h->use_weight_chroma= 1; |
|
h->chroma_weight_flag[list]= 1; |
|
} |
|
} |
|
}else{ |
|
int j; |
|
for(j=0; j<2; j++){ |
|
h->chroma_weight[i][list][j][0]= chroma_def; |
|
h->chroma_weight[i][list][j][1]= 0; |
|
} |
|
} |
|
} |
|
} |
|
if(h->slice_type_nos != FF_B_TYPE) break; |
|
} |
|
h->use_weight= h->use_weight || h->use_weight_chroma; |
|
return 0; |
|
} |
|
|
|
static void implicit_weight_table(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
int ref0, ref1, i; |
|
int cur_poc = s->current_picture_ptr->poc; |
|
|
|
for (i = 0; i < 2; i++) { |
|
h->luma_weight_flag[i] = 0; |
|
h->chroma_weight_flag[i] = 0; |
|
} |
|
|
|
if( h->ref_count[0] == 1 && h->ref_count[1] == 1 |
|
&& h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){ |
|
h->use_weight= 0; |
|
h->use_weight_chroma= 0; |
|
return; |
|
} |
|
|
|
h->use_weight= 2; |
|
h->use_weight_chroma= 2; |
|
h->luma_log2_weight_denom= 5; |
|
h->chroma_log2_weight_denom= 5; |
|
|
|
for(ref0=0; ref0 < h->ref_count[0]; ref0++){ |
|
int poc0 = h->ref_list[0][ref0].poc; |
|
for(ref1=0; ref1 < h->ref_count[1]; ref1++){ |
|
int poc1 = h->ref_list[1][ref1].poc; |
|
int td = av_clip(poc1 - poc0, -128, 127); |
|
h->implicit_weight[ref0][ref1] = 32; |
|
if(td){ |
|
int tb = av_clip(cur_poc - poc0, -128, 127); |
|
int tx = (16384 + (FFABS(td) >> 1)) / td; |
|
int dist_scale_factor = (tb*tx + 32) >> 8; |
|
if(dist_scale_factor >= -64 && dist_scale_factor <= 128) |
|
h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor; |
|
} |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* instantaneous decoder refresh. |
|
*/ |
|
static void idr(H264Context *h){ |
|
ff_h264_remove_all_refs(h); |
|
h->prev_frame_num= 0; |
|
h->prev_frame_num_offset= 0; |
|
h->prev_poc_msb= |
|
h->prev_poc_lsb= 0; |
|
} |
|
|
|
/* forget old pics after a seek */ |
|
static void flush_dpb(AVCodecContext *avctx){ |
|
H264Context *h= avctx->priv_data; |
|
int i; |
|
for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) { |
|
if(h->delayed_pic[i]) |
|
h->delayed_pic[i]->reference= 0; |
|
h->delayed_pic[i]= NULL; |
|
} |
|
h->outputed_poc= INT_MIN; |
|
h->prev_interlaced_frame = 1; |
|
idr(h); |
|
if(h->s.current_picture_ptr) |
|
h->s.current_picture_ptr->reference= 0; |
|
h->s.first_field= 0; |
|
ff_h264_reset_sei(h); |
|
ff_mpeg_flush(avctx); |
|
} |
|
|
|
static int init_poc(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
const int max_frame_num= 1<<h->sps.log2_max_frame_num; |
|
int field_poc[2]; |
|
Picture *cur = s->current_picture_ptr; |
|
|
|
h->frame_num_offset= h->prev_frame_num_offset; |
|
if(h->frame_num < h->prev_frame_num) |
|
h->frame_num_offset += max_frame_num; |
|
|
|
if(h->sps.poc_type==0){ |
|
const int max_poc_lsb= 1<<h->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= 2*(h->frame_num_offset + h->frame_num); |
|
|
|
if(!h->nal_ref_idc) |
|
poc--; |
|
|
|
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]; |
|
cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
/** |
|
* initialize scan tables |
|
*/ |
|
static void init_scan_tables(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
int i; |
|
if(s->dsp.h264_idct_add == ff_h264_idct_add_c){ //FIXME little ugly |
|
memcpy(h->zigzag_scan, zigzag_scan, 16*sizeof(uint8_t)); |
|
memcpy(h-> field_scan, field_scan, 16*sizeof(uint8_t)); |
|
}else{ |
|
for(i=0; i<16; i++){ |
|
#define T(x) (x>>2) | ((x<<2) & 0xF) |
|
h->zigzag_scan[i] = T(zigzag_scan[i]); |
|
h-> field_scan[i] = T( field_scan[i]); |
|
#undef T |
|
} |
|
} |
|
if(s->dsp.h264_idct8_add == ff_h264_idct8_add_c){ |
|
memcpy(h->zigzag_scan8x8, ff_zigzag_direct, 64*sizeof(uint8_t)); |
|
memcpy(h->zigzag_scan8x8_cavlc, zigzag_scan8x8_cavlc, 64*sizeof(uint8_t)); |
|
memcpy(h->field_scan8x8, field_scan8x8, 64*sizeof(uint8_t)); |
|
memcpy(h->field_scan8x8_cavlc, field_scan8x8_cavlc, 64*sizeof(uint8_t)); |
|
}else{ |
|
for(i=0; i<64; i++){ |
|
#define T(x) (x>>3) | ((x&7)<<3) |
|
h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]); |
|
h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]); |
|
h->field_scan8x8[i] = T(field_scan8x8[i]); |
|
h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]); |
|
#undef T |
|
} |
|
} |
|
if(h->sps.transform_bypass){ //FIXME same ugly |
|
h->zigzag_scan_q0 = zigzag_scan; |
|
h->zigzag_scan8x8_q0 = ff_zigzag_direct; |
|
h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc; |
|
h->field_scan_q0 = field_scan; |
|
h->field_scan8x8_q0 = field_scan8x8; |
|
h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc; |
|
}else{ |
|
h->zigzag_scan_q0 = h->zigzag_scan; |
|
h->zigzag_scan8x8_q0 = h->zigzag_scan8x8; |
|
h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc; |
|
h->field_scan_q0 = h->field_scan; |
|
h->field_scan8x8_q0 = h->field_scan8x8; |
|
h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc; |
|
} |
|
} |
|
|
|
static void field_end(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
AVCodecContext * const avctx= s->avctx; |
|
s->mb_y= 0; |
|
|
|
s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_H264; |
|
s->current_picture_ptr->pict_type= s->pict_type; |
|
|
|
if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
|
ff_vdpau_h264_set_reference_frames(s); |
|
|
|
if(!s->dropable) { |
|
ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
|
h->prev_poc_msb= h->poc_msb; |
|
h->prev_poc_lsb= h->poc_lsb; |
|
} |
|
h->prev_frame_num_offset= h->frame_num_offset; |
|
h->prev_frame_num= h->frame_num; |
|
|
|
if (avctx->hwaccel) { |
|
if (avctx->hwaccel->end_frame(avctx) < 0) |
|
av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n"); |
|
} |
|
|
|
if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
|
ff_vdpau_h264_picture_complete(s); |
|
|
|
/* |
|
* FIXME: Error handling code does not seem to support interlaced |
|
* when slices span multiple rows |
|
* The ff_er_add_slice calls don't work right for bottom |
|
* fields; they cause massive erroneous error concealing |
|
* Error marking covers both fields (top and bottom). |
|
* This causes a mismatched s->error_count |
|
* and a bad error table. Further, the error count goes to |
|
* INT_MAX when called for bottom field, because mb_y is |
|
* past end by one (callers fault) and resync_mb_y != 0 |
|
* causes problems for the first MB line, too. |
|
*/ |
|
if (!FIELD_PICTURE) |
|
ff_er_frame_end(s); |
|
|
|
MPV_frame_end(s); |
|
|
|
h->current_slice=0; |
|
} |
|
|
|
/** |
|
* Replicates H264 "master" context to thread contexts. |
|
*/ |
|
static void clone_slice(H264Context *dst, H264Context *src) |
|
{ |
|
memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset)); |
|
dst->s.current_picture_ptr = src->s.current_picture_ptr; |
|
dst->s.current_picture = src->s.current_picture; |
|
dst->s.linesize = src->s.linesize; |
|
dst->s.uvlinesize = src->s.uvlinesize; |
|
dst->s.first_field = src->s.first_field; |
|
|
|
dst->prev_poc_msb = src->prev_poc_msb; |
|
dst->prev_poc_lsb = src->prev_poc_lsb; |
|
dst->prev_frame_num_offset = src->prev_frame_num_offset; |
|
dst->prev_frame_num = src->prev_frame_num; |
|
dst->short_ref_count = src->short_ref_count; |
|
|
|
memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref)); |
|
memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref)); |
|
memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list)); |
|
memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list)); |
|
|
|
memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff)); |
|
memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff)); |
|
} |
|
|
|
/** |
|
* decodes a slice header. |
|
* This will also call MPV_common_init() and frame_start() as needed. |
|
* |
|
* @param h h264context |
|
* @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding) |
|
* |
|
* @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded |
|
*/ |
|
static int decode_slice_header(H264Context *h, H264Context *h0){ |
|
MpegEncContext * const s = &h->s; |
|
MpegEncContext * const s0 = &h0->s; |
|
unsigned int first_mb_in_slice; |
|
unsigned int pps_id; |
|
int num_ref_idx_active_override_flag; |
|
unsigned int slice_type, tmp, i, j; |
|
int default_ref_list_done = 0; |
|
int last_pic_structure; |
|
|
|
s->dropable= h->nal_ref_idc == 0; |
|
|
|
if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc){ |
|
s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab; |
|
s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab; |
|
}else{ |
|
s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab; |
|
s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab; |
|
} |
|
|
|
first_mb_in_slice= get_ue_golomb(&s->gb); |
|
|
|
if(first_mb_in_slice == 0){ //FIXME better field boundary detection |
|
if(h0->current_slice && FIELD_PICTURE){ |
|
field_end(h); |
|
} |
|
|
|
h0->current_slice = 0; |
|
if (!s0->first_field) |
|
s->current_picture_ptr= NULL; |
|
} |
|
|
|
slice_type= get_ue_golomb_31(&s->gb); |
|
if(slice_type > 9){ |
|
av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y); |
|
return -1; |
|
} |
|
if(slice_type > 4){ |
|
slice_type -= 5; |
|
h->slice_type_fixed=1; |
|
}else |
|
h->slice_type_fixed=0; |
|
|
|
slice_type= golomb_to_pict_type[ slice_type ]; |
|
if (slice_type == FF_I_TYPE |
|
|| (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) { |
|
default_ref_list_done = 1; |
|
} |
|
h->slice_type= slice_type; |
|
h->slice_type_nos= slice_type & 3; |
|
|
|
s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though |
|
|
|
pps_id= get_ue_golomb(&s->gb); |
|
if(pps_id>=MAX_PPS_COUNT){ |
|
av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n"); |
|
return -1; |
|
} |
|
if(!h0->pps_buffers[pps_id]) { |
|
av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id); |
|
return -1; |
|
} |
|
h->pps= *h0->pps_buffers[pps_id]; |
|
|
|
if(!h0->sps_buffers[h->pps.sps_id]) { |
|
av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id); |
|
return -1; |
|
} |
|
h->sps = *h0->sps_buffers[h->pps.sps_id]; |
|
|
|
if(h == h0 && h->dequant_coeff_pps != pps_id){ |
|
h->dequant_coeff_pps = pps_id; |
|
init_dequant_tables(h); |
|
} |
|
|
|
s->mb_width= h->sps.mb_width; |
|
s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag); |
|
|
|
h->b_stride= s->mb_width*4; |
|
|
|
s->width = 16*s->mb_width - 2*FFMIN(h->sps.crop_right, 7); |
|
if(h->sps.frame_mbs_only_flag) |
|
s->height= 16*s->mb_height - 2*FFMIN(h->sps.crop_bottom, 7); |
|
else |
|
s->height= 16*s->mb_height - 4*FFMIN(h->sps.crop_bottom, 3); |
|
|
|
if (s->context_initialized |
|
&& ( s->width != s->avctx->width || s->height != s->avctx->height)) { |
|
if(h != h0) |
|
return -1; // width / height changed during parallelized decoding |
|
free_tables(h); |
|
flush_dpb(s->avctx); |
|
MPV_common_end(s); |
|
} |
|
if (!s->context_initialized) { |
|
if(h != h0) |
|
return -1; // we cant (re-)initialize context during parallel decoding |
|
|
|
avcodec_set_dimensions(s->avctx, s->width, s->height); |
|
s->avctx->sample_aspect_ratio= h->sps.sar; |
|
if(!s->avctx->sample_aspect_ratio.den) |
|
s->avctx->sample_aspect_ratio.den = 1; |
|
|
|
if(h->sps.video_signal_type_present_flag){ |
|
s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG; |
|
if(h->sps.colour_description_present_flag){ |
|
s->avctx->color_primaries = h->sps.color_primaries; |
|
s->avctx->color_trc = h->sps.color_trc; |
|
s->avctx->colorspace = h->sps.colorspace; |
|
} |
|
} |
|
|
|
if(h->sps.timing_info_present_flag){ |
|
int64_t den= h->sps.time_scale; |
|
if(h->x264_build < 44U) |
|
den *= 2; |
|
av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den, |
|
h->sps.num_units_in_tick, den, 1<<30); |
|
} |
|
s->avctx->pix_fmt = s->avctx->get_format(s->avctx, s->avctx->codec->pix_fmts); |
|
s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt); |
|
|
|
if (MPV_common_init(s) < 0) |
|
return -1; |
|
s->first_field = 0; |
|
h->prev_interlaced_frame = 1; |
|
|
|
init_scan_tables(h); |
|
ff_h264_alloc_tables(h); |
|
|
|
for(i = 1; i < s->avctx->thread_count; i++) { |
|
H264Context *c; |
|
c = h->thread_context[i] = av_malloc(sizeof(H264Context)); |
|
memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext)); |
|
memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext)); |
|
c->sps = h->sps; |
|
c->pps = h->pps; |
|
init_scan_tables(c); |
|
clone_tables(c, h, i); |
|
} |
|
|
|
for(i = 0; i < s->avctx->thread_count; i++) |
|
if(context_init(h->thread_context[i]) < 0) |
|
return -1; |
|
} |
|
|
|
h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num); |
|
|
|
h->mb_mbaff = 0; |
|
h->mb_aff_frame = 0; |
|
last_pic_structure = s0->picture_structure; |
|
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; |
|
h->mb_aff_frame = h->sps.mb_aff; |
|
} |
|
} |
|
h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME; |
|
|
|
if(h0->current_slice == 0){ |
|
while(h->frame_num != h->prev_frame_num && |
|
h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){ |
|
av_log(NULL, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num); |
|
if (ff_h264_frame_start(h) < 0) |
|
return -1; |
|
h->prev_frame_num++; |
|
h->prev_frame_num %= 1<<h->sps.log2_max_frame_num; |
|
s->current_picture_ptr->frame_num= h->prev_frame_num; |
|
ff_h264_execute_ref_pic_marking(h, NULL, 0); |
|
} |
|
|
|
/* See if we have a decoded first field looking for a pair... */ |
|
if (s0->first_field) { |
|
assert(s0->current_picture_ptr); |
|
assert(s0->current_picture_ptr->data[0]); |
|
assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF); |
|
|
|
/* figure out if we have a complementary field pair */ |
|
if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) { |
|
/* |
|
* Previous field is unmatched. Don't display it, but let it |
|
* remain for reference if marked as such. |
|
*/ |
|
s0->current_picture_ptr = NULL; |
|
s0->first_field = FIELD_PICTURE; |
|
|
|
} else { |
|
if (h->nal_ref_idc && |
|
s0->current_picture_ptr->reference && |
|
s0->current_picture_ptr->frame_num != h->frame_num) { |
|
/* |
|
* This and previous field were reference, but had |
|
* different frame_nums. Consider this field first in |
|
* pair. Throw away previous field except for reference |
|
* purposes. |
|
*/ |
|
s0->first_field = 1; |
|
s0->current_picture_ptr = NULL; |
|
|
|
} else { |
|
/* Second field in complementary pair */ |
|
s0->first_field = 0; |
|
} |
|
} |
|
|
|
} else { |
|
/* Frame or first field in a potentially complementary pair */ |
|
assert(!s0->current_picture_ptr); |
|
s0->first_field = FIELD_PICTURE; |
|
} |
|
|
|
if((!FIELD_PICTURE || s0->first_field) && ff_h264_frame_start(h) < 0) { |
|
s0->first_field = 0; |
|
return -1; |
|
} |
|
} |
|
if(h != h0) |
|
clone_slice(h, h0); |
|
|
|
s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup |
|
|
|
assert(s->mb_num == s->mb_width * s->mb_height); |
|
if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num || |
|
first_mb_in_slice >= s->mb_num){ |
|
av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n"); |
|
return -1; |
|
} |
|
s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width; |
|
s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE; |
|
if (s->picture_structure == PICT_BOTTOM_FIELD) |
|
s->resync_mb_y = s->mb_y = s->mb_y + 1; |
|
assert(s->mb_y < s->mb_height); |
|
|
|
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 + 1; |
|
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 overridden a few lines later |
|
h->ref_count[0]= h->pps.ref_count[0]; |
|
h->ref_count[1]= h->pps.ref_count[1]; |
|
|
|
if(h->slice_type_nos != FF_I_TYPE){ |
|
if(h->slice_type_nos == FF_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_nos==FF_B_TYPE) |
|
h->ref_count[1]= get_ue_golomb(&s->gb) + 1; |
|
|
|
if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){ |
|
av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n"); |
|
h->ref_count[0]= h->ref_count[1]= 1; |
|
return -1; |
|
} |
|
} |
|
if(h->slice_type_nos == FF_B_TYPE) |
|
h->list_count= 2; |
|
else |
|
h->list_count= 1; |
|
}else |
|
h->list_count= 0; |
|
|
|
if(!default_ref_list_done){ |
|
ff_h264_fill_default_ref_list(h); |
|
} |
|
|
|
if(h->slice_type_nos!=FF_I_TYPE && ff_h264_decode_ref_pic_list_reordering(h) < 0) |
|
return -1; |
|
|
|
if(h->slice_type_nos!=FF_I_TYPE){ |
|
s->last_picture_ptr= &h->ref_list[0][0]; |
|
ff_copy_picture(&s->last_picture, s->last_picture_ptr); |
|
} |
|
if(h->slice_type_nos==FF_B_TYPE){ |
|
s->next_picture_ptr= &h->ref_list[1][0]; |
|
ff_copy_picture(&s->next_picture, s->next_picture_ptr); |
|
} |
|
|
|
if( (h->pps.weighted_pred && h->slice_type_nos == FF_P_TYPE ) |
|
|| (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== FF_B_TYPE ) ) |
|
pred_weight_table(h); |
|
else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== FF_B_TYPE){ |
|
implicit_weight_table(h); |
|
}else { |
|
h->use_weight = 0; |
|
for (i = 0; i < 2; i++) { |
|
h->luma_weight_flag[i] = 0; |
|
h->chroma_weight_flag[i] = 0; |
|
} |
|
} |
|
|
|
if(h->nal_ref_idc) |
|
ff_h264_decode_ref_pic_marking(h0, &s->gb); |
|
|
|
if(FRAME_MBAFF) |
|
ff_h264_fill_mbaff_ref_list(h); |
|
|
|
if(h->slice_type_nos==FF_B_TYPE && !h->direct_spatial_mv_pred) |
|
ff_h264_direct_dist_scale_factor(h); |
|
ff_h264_direct_ref_list_init(h); |
|
|
|
if( h->slice_type_nos != FF_I_TYPE && h->pps.cabac ){ |
|
tmp = get_ue_golomb_31(&s->gb); |
|
if(tmp > 2){ |
|
av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n"); |
|
return -1; |
|
} |
|
h->cabac_init_idc= tmp; |
|
} |
|
|
|
h->last_qscale_diff = 0; |
|
tmp = h->pps.init_qp + get_se_golomb(&s->gb); |
|
if(tmp>51){ |
|
av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp); |
|
return -1; |
|
} |
|
s->qscale= tmp; |
|
h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale); |
|
h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale); |
|
//FIXME qscale / qp ... stuff |
|
if(h->slice_type == FF_SP_TYPE){ |
|
get_bits1(&s->gb); /* sp_for_switch_flag */ |
|
} |
|
if(h->slice_type==FF_SP_TYPE || h->slice_type == FF_SI_TYPE){ |
|
get_se_golomb(&s->gb); /* slice_qs_delta */ |
|
} |
|
|
|
h->deblocking_filter = 1; |
|
h->slice_alpha_c0_offset = 52; |
|
h->slice_beta_offset = 52; |
|
if( h->pps.deblocking_filter_parameters_present ) { |
|
tmp= get_ue_golomb_31(&s->gb); |
|
if(tmp > 2){ |
|
av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp); |
|
return -1; |
|
} |
|
h->deblocking_filter= tmp; |
|
if(h->deblocking_filter < 2) |
|
h->deblocking_filter^= 1; // 1<->0 |
|
|
|
if( h->deblocking_filter ) { |
|
h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1; |
|
h->slice_beta_offset += get_se_golomb(&s->gb) << 1; |
|
if( h->slice_alpha_c0_offset > 104U |
|
|| h->slice_beta_offset > 104U){ |
|
av_log(s->avctx, AV_LOG_ERROR, "deblocking filter parameters %d %d out of range\n", h->slice_alpha_c0_offset, h->slice_beta_offset); |
|
return -1; |
|
} |
|
} |
|
} |
|
|
|
if( s->avctx->skip_loop_filter >= AVDISCARD_ALL |
|
||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != FF_I_TYPE) |
|
||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == FF_B_TYPE) |
|
||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0)) |
|
h->deblocking_filter= 0; |
|
|
|
if(h->deblocking_filter == 1 && h0->max_contexts > 1) { |
|
if(s->avctx->flags2 & CODEC_FLAG2_FAST) { |
|
/* Cheat slightly for speed: |
|
Do not bother to deblock across slices. */ |
|
h->deblocking_filter = 2; |
|
} else { |
|
h0->max_contexts = 1; |
|
if(!h0->single_decode_warning) { |
|
av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n"); |
|
h0->single_decode_warning = 1; |
|
} |
|
if(h != h0) |
|
return 1; // deblocking switched inside frame |
|
} |
|
} |
|
h->qp_thresh= 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1]); |
|
|
|
#if 0 //FMO |
|
if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5) |
|
slice_group_change_cycle= get_bits(&s->gb, ?); |
|
#endif |
|
|
|
h0->last_slice_type = slice_type; |
|
h->slice_num = ++h0->current_slice; |
|
if(h->slice_num >= MAX_SLICES){ |
|
av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n"); |
|
} |
|
|
|
for(j=0; j<2; j++){ |
|
int id_list[16]; |
|
int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j]; |
|
for(i=0; i<16; i++){ |
|
id_list[i]= 60; |
|
if(h->ref_list[j][i].data[0]){ |
|
int k; |
|
uint8_t *base= h->ref_list[j][i].base[0]; |
|
for(k=0; k<h->short_ref_count; k++) |
|
if(h->short_ref[k]->base[0] == base){ |
|
id_list[i]= k; |
|
break; |
|
} |
|
for(k=0; k<h->long_ref_count; k++) |
|
if(h->long_ref[k] && h->long_ref[k]->base[0] == base){ |
|
id_list[i]= h->short_ref_count + k; |
|
break; |
|
} |
|
} |
|
} |
|
|
|
ref2frm[0]= |
|
ref2frm[1]= -1; |
|
for(i=0; i<16; i++) |
|
ref2frm[i+2]= 4*id_list[i] |
|
+(h->ref_list[j][i].reference&3); |
|
ref2frm[18+0]= |
|
ref2frm[18+1]= -1; |
|
for(i=16; i<48; i++) |
|
ref2frm[i+4]= 4*id_list[(i-16)>>1] |
|
+(h->ref_list[j][i].reference&3); |
|
} |
|
|
|
h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; |
|
h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width; |
|
|
|
s->avctx->refs= h->sps.ref_frame_count; |
|
|
|
if(s->avctx->debug&FF_DEBUG_PICT_INFO){ |
|
av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n", |
|
h->slice_num, |
|
(s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"), |
|
first_mb_in_slice, |
|
av_get_pict_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "", |
|
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->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26, |
|
h->use_weight, |
|
h->use_weight==1 && h->use_weight_chroma ? "c" : "", |
|
h->slice_type == FF_B_TYPE ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "" |
|
); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ff_h264_get_slice_type(const H264Context *h) |
|
{ |
|
switch (h->slice_type) { |
|
case FF_P_TYPE: return 0; |
|
case FF_B_TYPE: return 1; |
|
case FF_I_TYPE: return 2; |
|
case FF_SP_TYPE: return 3; |
|
case FF_SI_TYPE: return 4; |
|
default: return -1; |
|
} |
|
} |
|
|
|
static void loop_filter(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
uint8_t *dest_y, *dest_cb, *dest_cr; |
|
int linesize, uvlinesize, mb_x, mb_y; |
|
const int end_mb_y= s->mb_y + FRAME_MBAFF; |
|
const int old_slice_type= h->slice_type; |
|
|
|
if(h->deblocking_filter) { |
|
for(mb_x= 0; mb_x<s->mb_width; mb_x++){ |
|
for(mb_y=end_mb_y - FRAME_MBAFF; mb_y<= end_mb_y; mb_y++){ |
|
int mb_xy, mb_type; |
|
mb_xy = h->mb_xy = mb_x + mb_y*s->mb_stride; |
|
h->slice_num= h->slice_table[mb_xy]; |
|
mb_type= s->current_picture.mb_type[mb_xy]; |
|
h->list_count= h->list_counts[mb_xy]; |
|
|
|
if(FRAME_MBAFF) |
|
h->mb_mbaff = h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type); |
|
|
|
s->mb_x= mb_x; |
|
s->mb_y= mb_y; |
|
dest_y = s->current_picture.data[0] + (mb_x + mb_y * s->linesize ) * 16; |
|
dest_cb = s->current_picture.data[1] + (mb_x + mb_y * s->uvlinesize) * 8; |
|
dest_cr = s->current_picture.data[2] + (mb_x + mb_y * s->uvlinesize) * 8; |
|
//FIXME simplify above |
|
|
|
if (MB_FIELD) { |
|
linesize = h->mb_linesize = s->linesize * 2; |
|
uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2; |
|
if(mb_y&1){ //FIXME move out of this function? |
|
dest_y -= s->linesize*15; |
|
dest_cb-= s->uvlinesize*7; |
|
dest_cr-= s->uvlinesize*7; |
|
} |
|
} else { |
|
linesize = h->mb_linesize = s->linesize; |
|
uvlinesize = h->mb_uvlinesize = s->uvlinesize; |
|
} |
|
backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0); |
|
if(fill_filter_caches(h, mb_type)) |
|
continue; |
|
h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]); |
|
h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]); |
|
|
|
if (FRAME_MBAFF) { |
|
ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize); |
|
} else { |
|
ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize); |
|
} |
|
} |
|
} |
|
} |
|
h->slice_type= old_slice_type; |
|
s->mb_x= 0; |
|
s->mb_y= end_mb_y - FRAME_MBAFF; |
|
h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale); |
|
h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale); |
|
} |
|
|
|
static void predict_field_decoding_flag(H264Context *h){ |
|
MpegEncContext * const s = &h->s; |
|
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
|
int mb_type = (h->slice_table[mb_xy-1] == h->slice_num) |
|
? s->current_picture.mb_type[mb_xy-1] |
|
: (h->slice_table[mb_xy-s->mb_stride] == h->slice_num) |
|
? s->current_picture.mb_type[mb_xy-s->mb_stride] |
|
: 0; |
|
h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0; |
|
} |
|
|
|
static int decode_slice(struct AVCodecContext *avctx, void *arg){ |
|
H264Context *h = *(void**)arg; |
|
MpegEncContext * const s = &h->s; |
|
const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F; |
|
|
|
s->mb_skip_run= -1; |
|
|
|
h->is_complex = FRAME_MBAFF || s->picture_structure != PICT_FRAME || s->codec_id != CODEC_ID_H264 || |
|
(CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY)); |
|
|
|
if( h->pps.cabac ) { |
|
/* realign */ |
|
align_get_bits( &s->gb ); |
|
|
|
/* init cabac */ |
|
ff_init_cabac_states( &h->cabac); |
|
ff_init_cabac_decoder( &h->cabac, |
|
s->gb.buffer + get_bits_count(&s->gb)/8, |
|
(get_bits_left(&s->gb) + 7)/8); |
|
|
|
ff_h264_init_cabac_states(h); |
|
|
|
for(;;){ |
|
//START_TIMER |
|
int ret = ff_h264_decode_mb_cabac(h); |
|
int eos; |
|
//STOP_TIMER("decode_mb_cabac") |
|
|
|
if(ret>=0) ff_h264_hl_decode_mb(h); |
|
|
|
if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ? |
|
s->mb_y++; |
|
|
|
ret = ff_h264_decode_mb_cabac(h); |
|
|
|
if(ret>=0) ff_h264_hl_decode_mb(h); |
|
s->mb_y--; |
|
} |
|
eos = get_cabac_terminate( &h->cabac ); |
|
|
|
if((s->workaround_bugs & FF_BUG_TRUNCATED) && h->cabac.bytestream > h->cabac.bytestream_end + 2){ |
|
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; |
|
} |
|
if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) { |
|
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d, bytestream (%td)\n", s->mb_x, s->mb_y, h->cabac.bytestream_end - h->cabac.bytestream); |
|
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; |
|
loop_filter(h); |
|
ff_draw_horiz_band(s, 16*s->mb_y, 16); |
|
++s->mb_y; |
|
if(FIELD_OR_MBAFF_PICTURE) { |
|
++s->mb_y; |
|
if(FRAME_MBAFF && s->mb_y < s->mb_height) |
|
predict_field_decoding_flag(h); |
|
} |
|
} |
|
|
|
if( eos || s->mb_y >= s->mb_height ) { |
|
tprintf(s->avctx, "slice end %d %d\n", 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 { |
|
for(;;){ |
|
int ret = ff_h264_decode_mb_cavlc(h); |
|
|
|
if(ret>=0) ff_h264_hl_decode_mb(h); |
|
|
|
if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ? |
|
s->mb_y++; |
|
ret = ff_h264_decode_mb_cavlc(h); |
|
|
|
if(ret>=0) ff_h264_hl_decode_mb(h); |
|
s->mb_y--; |
|
} |
|
|
|
if(ret<0){ |
|
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y); |
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask); |
|
|
|
return -1; |
|
} |
|
|
|
if(++s->mb_x >= s->mb_width){ |
|
s->mb_x=0; |
|
loop_filter(h); |
|
ff_draw_horiz_band(s, 16*s->mb_y, 16); |
|
++s->mb_y; |
|
if(FIELD_OR_MBAFF_PICTURE) { |
|
++s->mb_y; |
|
if(FRAME_MBAFF && s->mb_y < s->mb_height) |
|
predict_field_decoding_flag(h); |
|
} |
|
if(s->mb_y >= s->mb_height){ |
|
tprintf(s->avctx, "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){ |
|
tprintf(s->avctx, "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_ERROR|DC_ERROR|MV_ERROR)&part_mask); |
|
|
|
return -1; |
|
} |
|
} |
|
} |
|
} |
|
|
|
#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); |
|
|
|
ff_h264_hl_decode_mb(h); |
|
|
|
if(ret<0){ |
|
av_log(s->avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y); |
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask); |
|
|
|
return -1; |
|
} |
|
|
|
if(++s->mb_x >= s->mb_width){ |
|
s->mb_x=0; |
|
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 |
|
} |
|
|
|
/** |
|
* Call decode_slice() for each context. |
|
* |
|
* @param h h264 master context |
|
* @param context_count number of contexts to execute |
|
*/ |
|
static void execute_decode_slices(H264Context *h, int context_count){ |
|
MpegEncContext * const s = &h->s; |
|
AVCodecContext * const avctx= s->avctx; |
|
H264Context *hx; |
|
int i; |
|
|
|
if (s->avctx->hwaccel) |
|
return; |
|
if(s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
|
return; |
|
if(context_count == 1) { |
|
decode_slice(avctx, &h); |
|
} else { |
|
for(i = 1; i < context_count; i++) { |
|
hx = h->thread_context[i]; |
|
hx->s.error_recognition = avctx->error_recognition; |
|
hx->s.error_count = 0; |
|
} |
|
|
|
avctx->execute(avctx, (void *)decode_slice, |
|
h->thread_context, NULL, context_count, sizeof(void*)); |
|
|
|
/* pull back stuff from slices to master context */ |
|
hx = h->thread_context[context_count - 1]; |
|
s->mb_x = hx->s.mb_x; |
|
s->mb_y = hx->s.mb_y; |
|
s->dropable = hx->s.dropable; |
|
s->picture_structure = hx->s.picture_structure; |
|
for(i = 1; i < context_count; i++) |
|
h->s.error_count += h->thread_context[i]->s.error_count; |
|
} |
|
} |
|
|
|
|
|
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){ |
|
MpegEncContext * const s = &h->s; |
|
AVCodecContext * const avctx= s->avctx; |
|
int buf_index=0; |
|
H264Context *hx; ///< thread context |
|
int context_count = 0; |
|
int next_avc= h->is_avc ? 0 : buf_size; |
|
|
|
h->max_contexts = avctx->thread_count; |
|
#if 0 |
|
int i; |
|
for(i=0; i<50; i++){ |
|
av_log(NULL, AV_LOG_ERROR,"%02X ", buf[i]); |
|
} |
|
#endif |
|
if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){ |
|
h->current_slice = 0; |
|
if (!s->first_field) |
|
s->current_picture_ptr= NULL; |
|
ff_h264_reset_sei(h); |
|
} |
|
|
|
for(;;){ |
|
int consumed; |
|
int dst_length; |
|
int bit_length; |
|
const uint8_t *ptr; |
|
int i, nalsize = 0; |
|
int err; |
|
|
|
if(buf_index >= next_avc) { |
|
if(buf_index >= buf_size) break; |
|
nalsize = 0; |
|
for(i = 0; i < h->nal_length_size; i++) |
|
nalsize = (nalsize << 8) | buf[buf_index++]; |
|
if(nalsize <= 1 || nalsize > buf_size - buf_index){ |
|
if(nalsize == 1){ |
|
buf_index++; |
|
continue; |
|
}else{ |
|
av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize); |
|
break; |
|
} |
|
} |
|
next_avc= buf_index + nalsize; |
|
} else { |
|
// start code prefix search |
|
for(; buf_index + 3 < next_avc; buf_index++){ |
|
// This should always 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; |
|
if(buf_index >= next_avc) continue; |
|
} |
|
|
|
hx = h->thread_context[context_count]; |
|
|
|
ptr= ff_h264_decode_nal(hx, buf + buf_index, &dst_length, &consumed, next_avc - buf_index); |
|
if (ptr==NULL || dst_length < 0){ |
|
return -1; |
|
} |
|
i= buf_index + consumed; |
|
if((s->workaround_bugs & FF_BUG_AUTODETECT) && i+3<next_avc && |
|
buf[i]==0x00 && buf[i+1]==0x00 && buf[i+2]==0x01 && buf[i+3]==0xE0) |
|
s->workaround_bugs |= FF_BUG_TRUNCATED; |
|
|
|
if(!(s->workaround_bugs & FF_BUG_TRUNCATED)){ |
|
while(ptr[dst_length - 1] == 0 && dst_length > 0) |
|
dst_length--; |
|
} |
|
bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1)); |
|
|
|
if(s->avctx->debug&FF_DEBUG_STARTCODE){ |
|
av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", hx->nal_unit_type, buf_index, buf_size, dst_length); |
|
} |
|
|
|
if (h->is_avc && (nalsize != consumed) && nalsize){ |
|
av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize); |
|
} |
|
|
|
buf_index += consumed; |
|
|
|
if( (s->hurry_up == 1 && h->nal_ref_idc == 0) //FIXME do not discard SEI id |
|
||(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0)) |
|
continue; |
|
|
|
again: |
|
err = 0; |
|
switch(hx->nal_unit_type){ |
|
case NAL_IDR_SLICE: |
|
if (h->nal_unit_type != NAL_IDR_SLICE) { |
|
av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices"); |
|
return -1; |
|
} |
|
idr(h); //FIXME ensure we don't loose some frames if there is reordering |
|
case NAL_SLICE: |
|
init_get_bits(&hx->s.gb, ptr, bit_length); |
|
hx->intra_gb_ptr= |
|
hx->inter_gb_ptr= &hx->s.gb; |
|
hx->s.data_partitioning = 0; |
|
|
|
if((err = decode_slice_header(hx, h))) |
|
break; |
|
|
|
avctx->profile = hx->sps.profile_idc; |
|
avctx->level = hx->sps.level_idc; |
|
|
|
if (s->avctx->hwaccel && h->current_slice == 1) { |
|
if (s->avctx->hwaccel->start_frame(s->avctx, NULL, 0) < 0) |
|
return -1; |
|
} |
|
|
|
s->current_picture_ptr->key_frame |= |
|
(hx->nal_unit_type == NAL_IDR_SLICE) || |
|
(h->sei_recovery_frame_cnt >= 0); |
|
if(hx->redundant_pic_count==0 && hx->s.hurry_up < 5 |
|
&& (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc) |
|
&& (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=FF_B_TYPE) |
|
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE) |
|
&& avctx->skip_frame < AVDISCARD_ALL){ |
|
if(avctx->hwaccel) { |
|
if (avctx->hwaccel->decode_slice(avctx, &buf[buf_index - consumed], consumed) < 0) |
|
return -1; |
|
}else |
|
if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){ |
|
static const uint8_t start_code[] = {0x00, 0x00, 0x01}; |
|
ff_vdpau_add_data_chunk(s, start_code, sizeof(start_code)); |
|
ff_vdpau_add_data_chunk(s, &buf[buf_index - consumed], consumed ); |
|
}else |
|
context_count++; |
|
} |
|
break; |
|
case NAL_DPA: |
|
init_get_bits(&hx->s.gb, ptr, bit_length); |
|
hx->intra_gb_ptr= |
|
hx->inter_gb_ptr= NULL; |
|
|
|
if ((err = decode_slice_header(hx, h)) < 0) |
|
break; |
|
|
|
avctx->profile = hx->sps.profile_idc; |
|
avctx->level = hx->sps.level_idc; |
|
|
|
hx->s.data_partitioning = 1; |
|
|
|
break; |
|
case NAL_DPB: |
|
init_get_bits(&hx->intra_gb, ptr, bit_length); |
|
hx->intra_gb_ptr= &hx->intra_gb; |
|
break; |
|
case NAL_DPC: |
|
init_get_bits(&hx->inter_gb, ptr, bit_length); |
|
hx->inter_gb_ptr= &hx->inter_gb; |
|
|
|
if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning |
|
&& s->context_initialized |
|
&& s->hurry_up < 5 |
|
&& (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc) |
|
&& (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=FF_B_TYPE) |
|
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE) |
|
&& avctx->skip_frame < AVDISCARD_ALL) |
|
context_count++; |
|
break; |
|
case NAL_SEI: |
|
init_get_bits(&s->gb, ptr, bit_length); |
|
ff_h264_decode_sei(h); |
|
break; |
|
case NAL_SPS: |
|
init_get_bits(&s->gb, ptr, bit_length); |
|
ff_h264_decode_seq_parameter_set(h); |
|
|
|
if(s->flags& CODEC_FLAG_LOW_DELAY) |
|
s->low_delay=1; |
|
|
|
if(avctx->has_b_frames < 2) |
|
avctx->has_b_frames= !s->low_delay; |
|
break; |
|
case NAL_PPS: |
|
init_get_bits(&s->gb, ptr, bit_length); |
|
|
|
ff_h264_decode_picture_parameter_set(h, bit_length); |
|
|
|
break; |
|
case NAL_AUD: |
|
case NAL_END_SEQUENCE: |
|
case NAL_END_STREAM: |
|
case NAL_FILLER_DATA: |
|
case NAL_SPS_EXT: |
|
case NAL_AUXILIARY_SLICE: |
|
break; |
|
default: |
|
av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", hx->nal_unit_type, bit_length); |
|
} |
|
|
|
if(context_count == h->max_contexts) { |
|
execute_decode_slices(h, context_count); |
|
context_count = 0; |
|
} |
|
|
|
if (err < 0) |
|
av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n"); |
|
else if(err == 1) { |
|
/* Slice could not be decoded in parallel mode, copy down |
|
* NAL unit stuff to context 0 and restart. Note that |
|
* rbsp_buffer is not transferred, but since we no longer |
|
* run in parallel mode this should not be an issue. */ |
|
h->nal_unit_type = hx->nal_unit_type; |
|
h->nal_ref_idc = hx->nal_ref_idc; |
|
hx = h; |
|
goto again; |
|
} |
|
} |
|
if(context_count) |
|
execute_decode_slices(h, context_count); |
|
return buf_index; |
|
} |
|
|
|
/** |
|
* returns the number of bytes consumed for building the current frame |
|
*/ |
|
static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){ |
|
if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...) |
|
if(pos+10>buf_size) pos=buf_size; // oops ;) |
|
|
|
return pos; |
|
} |
|
|
|
static int decode_frame(AVCodecContext *avctx, |
|
void *data, int *data_size, |
|
AVPacket *avpkt) |
|
{ |
|
const uint8_t *buf = avpkt->data; |
|
int buf_size = avpkt->size; |
|
H264Context *h = avctx->priv_data; |
|
MpegEncContext *s = &h->s; |
|
AVFrame *pict = data; |
|
int buf_index; |
|
|
|
s->flags= avctx->flags; |
|
s->flags2= avctx->flags2; |
|
|
|
/* end of stream, output what is still in the buffers */ |
|
if (buf_size == 0) { |
|
Picture *out; |
|
int i, out_idx; |
|
|
|
//FIXME factorize this with the output code below |
|
out = h->delayed_pic[0]; |
|
out_idx = 0; |
|
for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++) |
|
if(h->delayed_pic[i]->poc < out->poc){ |
|
out = h->delayed_pic[i]; |
|
out_idx = i; |
|
} |
|
|
|
for(i=out_idx; h->delayed_pic[i]; i++) |
|
h->delayed_pic[i] = h->delayed_pic[i+1]; |
|
|
|
if(out){ |
|
*data_size = sizeof(AVFrame); |
|
*pict= *(AVFrame*)out; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
buf_index=decode_nal_units(h, buf, buf_size); |
|
if(buf_index < 0) |
|
return -1; |
|
|
|
if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){ |
|
if (avctx->skip_frame >= AVDISCARD_NONREF || s->hurry_up) return 0; |
|
av_log(avctx, AV_LOG_ERROR, "no frame!\n"); |
|
return -1; |
|
} |
|
|
|
if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){ |
|
Picture *out = s->current_picture_ptr; |
|
Picture *cur = s->current_picture_ptr; |
|
int i, pics, out_of_order, out_idx; |
|
|
|
field_end(h); |
|
|
|
if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) { |
|
/* Wait for second field. */ |
|
*data_size = 0; |
|
|
|
} else { |
|
cur->interlaced_frame = 0; |
|
cur->repeat_pict = 0; |
|
|
|
/* Signal interlacing information externally. */ |
|
/* Prioritize picture timing SEI information over used decoding process if it exists. */ |
|
|
|
if(h->sps.pic_struct_present_flag){ |
|
switch (h->sei_pic_struct) |
|
{ |
|
case SEI_PIC_STRUCT_FRAME: |
|
break; |
|
case SEI_PIC_STRUCT_TOP_FIELD: |
|
case SEI_PIC_STRUCT_BOTTOM_FIELD: |
|
cur->interlaced_frame = 1; |
|
break; |
|
case SEI_PIC_STRUCT_TOP_BOTTOM: |
|
case SEI_PIC_STRUCT_BOTTOM_TOP: |
|
if (FIELD_OR_MBAFF_PICTURE) |
|
cur->interlaced_frame = 1; |
|
else |
|
// try to flag soft telecine progressive |
|
cur->interlaced_frame = h->prev_interlaced_frame; |
|
break; |
|
case SEI_PIC_STRUCT_TOP_BOTTOM_TOP: |
|
case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM: |
|
// Signal the possibility of telecined film externally (pic_struct 5,6) |
|
// From these hints, let the applications decide if they apply deinterlacing. |
|
cur->repeat_pict = 1; |
|
break; |
|
case SEI_PIC_STRUCT_FRAME_DOUBLING: |
|
// Force progressive here, as doubling interlaced frame is a bad idea. |
|
cur->repeat_pict = 2; |
|
break; |
|
case SEI_PIC_STRUCT_FRAME_TRIPLING: |
|
cur->repeat_pict = 4; |
|
break; |
|
} |
|
|
|
if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP) |
|
cur->interlaced_frame = (h->sei_ct_type & (1<<1)) != 0; |
|
}else{ |
|
/* Derive interlacing flag from used decoding process. */ |
|
cur->interlaced_frame = FIELD_OR_MBAFF_PICTURE; |
|
} |
|
h->prev_interlaced_frame = cur->interlaced_frame; |
|
|
|
if (cur->field_poc[0] != cur->field_poc[1]){ |
|
/* Derive top_field_first from field pocs. */ |
|
cur->top_field_first = cur->field_poc[0] < cur->field_poc[1]; |
|
}else{ |
|
if(cur->interlaced_frame || h->sps.pic_struct_present_flag){ |
|
/* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */ |
|
if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM |
|
|| h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP) |
|
cur->top_field_first = 1; |
|
else |
|
cur->top_field_first = 0; |
|
}else{ |
|
/* Most likely progressive */ |
|
cur->top_field_first = 0; |
|
} |
|
} |
|
|
|
//FIXME do something with unavailable reference frames |
|
|
|
/* Sort B-frames into display order */ |
|
|
|
if(h->sps.bitstream_restriction_flag |
|
&& s->avctx->has_b_frames < h->sps.num_reorder_frames){ |
|
s->avctx->has_b_frames = h->sps.num_reorder_frames; |
|
s->low_delay = 0; |
|
} |
|
|
|
if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT |
|
&& !h->sps.bitstream_restriction_flag){ |
|
s->avctx->has_b_frames= MAX_DELAYED_PIC_COUNT; |
|
s->low_delay= 0; |
|
} |
|
|
|
pics = 0; |
|
while(h->delayed_pic[pics]) pics++; |
|
|
|
assert(pics <= MAX_DELAYED_PIC_COUNT); |
|
|
|
h->delayed_pic[pics++] = cur; |
|
if(cur->reference == 0) |
|
cur->reference = DELAYED_PIC_REF; |
|
|
|
out = h->delayed_pic[0]; |
|
out_idx = 0; |
|
for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++) |
|
if(h->delayed_pic[i]->poc < out->poc){ |
|
out = h->delayed_pic[i]; |
|
out_idx = i; |
|
} |
|
if(s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) |
|
h->outputed_poc= INT_MIN; |
|
out_of_order = out->poc < h->outputed_poc; |
|
|
|
if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames) |
|
{ } |
|
else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) |
|
|| (s->low_delay && |
|
((h->outputed_poc != INT_MIN && out->poc > h->outputed_poc + 2) |
|
|| cur->pict_type == FF_B_TYPE))) |
|
{ |
|
s->low_delay = 0; |
|
s->avctx->has_b_frames++; |
|
} |
|
|
|
if(out_of_order || pics > s->avctx->has_b_frames){ |
|
out->reference &= ~DELAYED_PIC_REF; |
|
for(i=out_idx; h->delayed_pic[i]; i++) |
|
h->delayed_pic[i] = h->delayed_pic[i+1]; |
|
} |
|
if(!out_of_order && pics > s->avctx->has_b_frames){ |
|
*data_size = sizeof(AVFrame); |
|
|
|
if(out_idx==0 && h->delayed_pic[0] && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) { |
|
h->outputed_poc = INT_MIN; |
|
} else |
|
h->outputed_poc = out->poc; |
|
*pict= *(AVFrame*)out; |
|
}else{ |
|
av_log(avctx, AV_LOG_DEBUG, "no picture\n"); |
|
} |
|
} |
|
} |
|
|
|
assert(pict->data[0] || !*data_size); |
|
ff_print_debug_info(s, pict); |
|
//printf("out %d\n", (int)pict->data[0]); |
|
|
|
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 |
|
|
|
#ifdef TEST |
|
#undef printf |
|
#undef random |
|
#define COUNT 8000 |
|
#define SIZE (COUNT*40) |
|
int main(void){ |
|
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); |
|
printf("testing unsigned exp golomb\n"); |
|
for(i=0; i<COUNT; i++){ |
|
START_TIMER |
|
set_ue_golomb(&pb, i); |
|
STOP_TIMER("set_ue_golomb"); |
|
} |
|
flush_put_bits(&pb); |
|
|
|
init_get_bits(&gb, temp, 8*SIZE); |
|
for(i=0; i<COUNT; i++){ |
|
int j, s; |
|
|
|
s= show_bits(&gb, 24); |
|
|
|
START_TIMER |
|
j= get_ue_golomb(&gb); |
|
if(j != i){ |
|
printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s); |
|
// return -1; |
|
} |
|
STOP_TIMER("get_ue_golomb"); |
|
} |
|
|
|
|
|
init_put_bits(&pb, temp, SIZE); |
|
printf("testing signed exp golomb\n"); |
|
for(i=0; i<COUNT; i++){ |
|
START_TIMER |
|
set_se_golomb(&pb, i - COUNT/2); |
|
STOP_TIMER("set_se_golomb"); |
|
} |
|
flush_put_bits(&pb); |
|
|
|
init_get_bits(&gb, temp, 8*SIZE); |
|
for(i=0; i<COUNT; i++){ |
|
int j, s; |
|
|
|
s= show_bits(&gb, 24); |
|
|
|
START_TIMER |
|
j= get_se_golomb(&gb); |
|
if(j != i - COUNT/2){ |
|
printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s); |
|
// return -1; |
|
} |
|
STOP_TIMER("get_se_golomb"); |
|
} |
|
|
|
#if 0 |
|
printf("testing 4x4 (I)DCT\n"); |
|
|
|
DCTELEM block[16]; |
|
uint8_t src[16], ref[16]; |
|
uint64_t error= 0, max_error=0; |
|
|
|
for(i=0; i<COUNT; i++){ |
|
int j; |
|
// printf("%d %d %d\n", r1, r2, (r2-r1)*16); |
|
for(j=0; j<16; j++){ |
|
ref[j]= random()%255; |
|
src[j]= random()%255; |
|
} |
|
|
|
h264_diff_dct_c(block, src, ref, 4); |
|
|
|
//normalize |
|
for(j=0; j<16; j++){ |
|
// printf("%d ", block[j]); |
|
block[j]= block[j]*4; |
|
if(j&1) block[j]= (block[j]*4 + 2)/5; |
|
if(j&4) block[j]= (block[j]*4 + 2)/5; |
|
} |
|
// printf("\n"); |
|
|
|
s->dsp.h264_idct_add(ref, block, 4); |
|
/* for(j=0; j<16; j++){ |
|
printf("%d ", ref[j]); |
|
} |
|
printf("\n");*/ |
|
|
|
for(j=0; j<16; j++){ |
|
int diff= FFABS(src[j] - ref[j]); |
|
|
|
error+= diff*diff; |
|
max_error= FFMAX(max_error, diff); |
|
} |
|
} |
|
printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error ); |
|
printf("testing quantizer\n"); |
|
for(qp=0; qp<52; qp++){ |
|
for(i=0; i<16; i++) |
|
src1_block[i]= src2_block[i]= random()%255; |
|
|
|
} |
|
printf("Testing NAL layer\n"); |
|
|
|
uint8_t bitstream[COUNT]; |
|
uint8_t nal[COUNT*2]; |
|
H264Context h; |
|
memset(&h, 0, sizeof(H264Context)); |
|
|
|
for(i=0; i<COUNT; i++){ |
|
int zeros= i; |
|
int nal_length; |
|
int consumed; |
|
int out_length; |
|
uint8_t *out; |
|
int j; |
|
|
|
for(j=0; j<COUNT; j++){ |
|
bitstream[j]= (random() % 255) + 1; |
|
} |
|
|
|
for(j=0; j<zeros; j++){ |
|
int pos= random() % COUNT; |
|
while(bitstream[pos] == 0){ |
|
pos++; |
|
pos %= COUNT; |
|
} |
|
bitstream[pos]=0; |
|
} |
|
|
|
START_TIMER |
|
|
|
nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2); |
|
if(nal_length<0){ |
|
printf("encoding failed\n"); |
|
return -1; |
|
} |
|
|
|
out= ff_h264_decode_nal(&h, nal, &out_length, &consumed, nal_length); |
|
|
|
STOP_TIMER("NAL") |
|
|
|
if(out_length != COUNT){ |
|
printf("incorrect length %d %d\n", out_length, COUNT); |
|
return -1; |
|
} |
|
|
|
if(consumed != nal_length){ |
|
printf("incorrect consumed length %d %d\n", nal_length, consumed); |
|
return -1; |
|
} |
|
|
|
if(memcmp(bitstream, out, COUNT)){ |
|
printf("mismatch\n"); |
|
return -1; |
|
} |
|
} |
|
#endif |
|
|
|
printf("Testing RBSP\n"); |
|
|
|
|
|
return 0; |
|
} |
|
#endif /* TEST */ |
|
|
|
|
|
av_cold void ff_h264_free_context(H264Context *h) |
|
{ |
|
int i; |
|
|
|
free_tables(h); //FIXME cleanup init stuff perhaps |
|
|
|
for(i = 0; i < MAX_SPS_COUNT; i++) |
|
av_freep(h->sps_buffers + i); |
|
|
|
for(i = 0; i < MAX_PPS_COUNT; i++) |
|
av_freep(h->pps_buffers + i); |
|
} |
|
|
|
av_cold int ff_h264_decode_end(AVCodecContext *avctx) |
|
{ |
|
H264Context *h = avctx->priv_data; |
|
MpegEncContext *s = &h->s; |
|
|
|
ff_h264_free_context(h); |
|
|
|
MPV_common_end(s); |
|
|
|
// memset(h, 0, sizeof(H264Context)); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
AVCodec h264_decoder = { |
|
"h264", |
|
CODEC_TYPE_VIDEO, |
|
CODEC_ID_H264, |
|
sizeof(H264Context), |
|
ff_h264_decode_init, |
|
NULL, |
|
ff_h264_decode_end, |
|
decode_frame, |
|
/*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_DELAY, |
|
.flush= flush_dpb, |
|
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"), |
|
.pix_fmts= ff_hwaccel_pixfmt_list_420, |
|
}; |
|
|
|
#if CONFIG_H264_VDPAU_DECODER |
|
AVCodec h264_vdpau_decoder = { |
|
"h264_vdpau", |
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CODEC_TYPE_VIDEO, |
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CODEC_ID_H264, |
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sizeof(H264Context), |
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ff_h264_decode_init, |
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NULL, |
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ff_h264_decode_end, |
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decode_frame, |
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CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU, |
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.flush= flush_dpb, |
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.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"), |
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.pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE}, |
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}; |
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#endif
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