/* * The simplest mpeg encoder (well, it was the simplest!) * Copyright (c) 2000,2001 Fabrice Bellard * Copyright (c) 2002-2004 Michael Niedermayer * * 4MV & hq & B-frame encoding stuff by Michael Niedermayer * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file libavcodec/mpegvideo_enc.c * The simplest mpeg encoder (well, it was the simplest!). */ #include "avcodec.h" #include "dsputil.h" #include "mpegvideo.h" #include "mpegvideo_common.h" #include "mjpegenc.h" #include "msmpeg4.h" #include "h263.h" #include "faandct.h" #include "aandcttab.h" #include //#undef NDEBUG //#include static int encode_picture(MpegEncContext *s, int picture_number); static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale); static int sse_mb(MpegEncContext *s); /* enable all paranoid tests for rounding, overflows, etc... */ //#define PARANOID //#define DEBUG static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1]; static uint8_t default_fcode_tab[MAX_MV*2+1]; void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra) { int qscale; int shift=0; for(qscale=qmin; qscale<=qmax; qscale++){ int i; if (dsp->fdct == ff_jpeg_fdct_islow #ifdef FAAN_POSTSCALE || dsp->fdct == ff_faandct #endif ) { for(i=0;i<64;i++) { const int j= dsp->idct_permutation[i]; /* 16 <= qscale * quant_matrix[i] <= 7905 */ /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */ /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */ /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */ qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j])); } } else if (dsp->fdct == fdct_ifast #ifndef FAAN_POSTSCALE || dsp->fdct == ff_faandct #endif ) { for(i=0;i<64;i++) { const int j= dsp->idct_permutation[i]; /* 16 <= qscale * quant_matrix[i] <= 7905 */ /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */ /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */ /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */ qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) / (ff_aanscales[i] * qscale * quant_matrix[j])); } } else { for(i=0;i<64;i++) { const int j= dsp->idct_permutation[i]; /* We can safely suppose that 16 <= quant_matrix[i] <= 255 So 16 <= qscale * quant_matrix[i] <= 7905 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67 */ qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j])); // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]); qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]); if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1; qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]); } } for(i=intra; i<64; i++){ int64_t max= 8191; if (dsp->fdct == fdct_ifast #ifndef FAAN_POSTSCALE || dsp->fdct == ff_faandct #endif ) { max = (8191LL*ff_aanscales[i]) >> 14; } while(((max * qmat[qscale][i]) >> shift) > INT_MAX){ shift++; } } } if(shift){ av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift); } } static inline void update_qscale(MpegEncContext *s){ s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7); s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax); s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT; } void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){ int i; if(matrix){ put_bits(pb, 1, 1); for(i=0;i<64;i++) { put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]); } }else put_bits(pb, 1, 0); } static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){ int i; dst->pict_type = src->pict_type; dst->quality = src->quality; dst->coded_picture_number = src->coded_picture_number; dst->display_picture_number = src->display_picture_number; // dst->reference = src->reference; dst->pts = src->pts; dst->interlaced_frame = src->interlaced_frame; dst->top_field_first = src->top_field_first; if(s->avctx->me_threshold){ if(!src->motion_val[0]) av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n"); if(!src->mb_type) av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n"); if(!src->ref_index[0]) av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n"); if(src->motion_subsample_log2 != dst->motion_subsample_log2) av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n", src->motion_subsample_log2, dst->motion_subsample_log2); memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0])); for(i=0; i<2; i++){ int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1; int height= ((16*s->mb_height)>>src->motion_subsample_log2); if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){ memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t)); } if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){ memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t)); } } } } static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){ #define COPY(a) dst->a= src->a COPY(pict_type); COPY(current_picture); COPY(f_code); COPY(b_code); COPY(qscale); COPY(lambda); COPY(lambda2); COPY(picture_in_gop_number); COPY(gop_picture_number); COPY(frame_pred_frame_dct); //FIXME don't set in encode_header COPY(progressive_frame); //FIXME don't set in encode_header COPY(partitioned_frame); //FIXME don't set in encode_header #undef COPY } /** * sets the given MpegEncContext to defaults for encoding. * the changed fields will not depend upon the prior state of the MpegEncContext. */ static void MPV_encode_defaults(MpegEncContext *s){ int i; MPV_common_defaults(s); for(i=-16; i<16; i++){ default_fcode_tab[i + MAX_MV]= 1; } s->me.mv_penalty= default_mv_penalty; s->fcode_tab= default_fcode_tab; } /* init video encoder */ av_cold int MPV_encode_init(AVCodecContext *avctx) { MpegEncContext *s = avctx->priv_data; int i; int chroma_h_shift, chroma_v_shift; MPV_encode_defaults(s); switch (avctx->codec_id) { case CODEC_ID_MPEG2VIDEO: if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){ av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n"); return -1; } break; case CODEC_ID_LJPEG: case CODEC_ID_MJPEG: if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 && ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){ av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n"); return -1; } break; default: if(avctx->pix_fmt != PIX_FMT_YUV420P){ av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n"); return -1; } } switch (avctx->pix_fmt) { case PIX_FMT_YUVJ422P: case PIX_FMT_YUV422P: s->chroma_format = CHROMA_422; break; case PIX_FMT_YUVJ420P: case PIX_FMT_YUV420P: default: s->chroma_format = CHROMA_420; break; } s->bit_rate = avctx->bit_rate; s->width = avctx->width; s->height = avctx->height; if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){ av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n"); avctx->gop_size=600; } s->gop_size = avctx->gop_size; s->avctx = avctx; s->flags= avctx->flags; s->flags2= avctx->flags2; s->max_b_frames= avctx->max_b_frames; s->codec_id= avctx->codec->id; s->luma_elim_threshold = avctx->luma_elim_threshold; s->chroma_elim_threshold= avctx->chroma_elim_threshold; s->strict_std_compliance= avctx->strict_std_compliance; s->data_partitioning= avctx->flags & CODEC_FLAG_PART; s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0; s->mpeg_quant= avctx->mpeg_quant; s->rtp_mode= !!avctx->rtp_payload_size; s->intra_dc_precision= avctx->intra_dc_precision; s->user_specified_pts = AV_NOPTS_VALUE; if (s->gop_size <= 1) { s->intra_only = 1; s->gop_size = 12; } else { s->intra_only = 0; } s->me_method = avctx->me_method; /* Fixed QSCALE */ s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE); s->adaptive_quant= ( s->avctx->lumi_masking || s->avctx->dark_masking || s->avctx->temporal_cplx_masking || s->avctx->spatial_cplx_masking || s->avctx->p_masking || s->avctx->border_masking || (s->flags&CODEC_FLAG_QP_RD)) && !s->fixed_qscale; s->obmc= !!(s->flags & CODEC_FLAG_OBMC); s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER); s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN); s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC); s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT); if(avctx->rc_max_rate && !avctx->rc_buffer_size){ av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n"); return -1; } if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){ av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n"); } if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){ av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n"); return -1; } if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){ av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n"); return -1; } if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){ av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n"); } if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){ av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n"); return -1; } if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){ av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n"); return -1; } if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO) && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){ av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n"); } if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){ av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n"); return -1; } if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){ av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n"); return -1; } if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){ av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n"); return -1; } if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){ av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n"); return -1; } if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){ av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n"); return -1; } if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){ av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n"); return -1; } if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN)) && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){ av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n"); return -1; } if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n"); return -1; } if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){ av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n"); return -1; } if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){ av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n"); return -1; } if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){ av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n"); return -1; } if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){ av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n"); return -1; } if(s->flags & CODEC_FLAG_LOW_DELAY){ if (s->codec_id != CODEC_ID_MPEG2VIDEO){ av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n"); return -1; } if (s->max_b_frames != 0){ av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n"); return -1; } } if(s->q_scale_type == 1){ if(s->codec_id != CODEC_ID_MPEG2VIDEO){ av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n"); return -1; } if(avctx->qmax > 12){ av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n"); return -1; } } if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){ av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n"); return -1; } if(s->avctx->thread_count > 1) s->rtp_mode= 1; if(!avctx->time_base.den || !avctx->time_base.num){ av_log(avctx, AV_LOG_ERROR, "framerate not set\n"); return -1; } i= (INT_MAX/2+128)>>8; if(avctx->me_threshold >= i){ av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1); return -1; } if(avctx->mb_threshold >= i){ av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1); return -1; } if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){ av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n"); avctx->b_frame_strategy = 0; } i= av_gcd(avctx->time_base.den, avctx->time_base.num); if(i > 1){ av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n"); avctx->time_base.den /= i; avctx->time_base.num /= i; // return -1; } if(s->codec_id==CODEC_ID_MJPEG){ s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x s->inter_quant_bias= 0; }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){ s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x s->inter_quant_bias= 0; }else{ s->intra_quant_bias=0; s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x } if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS) s->intra_quant_bias= avctx->intra_quant_bias; if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS) s->inter_quant_bias= avctx->inter_quant_bias; avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift); if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){ av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n"); return -1; } s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1; switch(avctx->codec->id) { case CODEC_ID_MPEG1VIDEO: s->out_format = FMT_MPEG1; s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY); avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); break; case CODEC_ID_MPEG2VIDEO: s->out_format = FMT_MPEG1; s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY); avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); s->rtp_mode= 1; break; case CODEC_ID_LJPEG: case CODEC_ID_MJPEG: s->out_format = FMT_MJPEG; s->intra_only = 1; /* force intra only for jpeg */ s->mjpeg_vsample[0] = 2; s->mjpeg_vsample[1] = 2>>chroma_v_shift; s->mjpeg_vsample[2] = 2>>chroma_v_shift; s->mjpeg_hsample[0] = 2; s->mjpeg_hsample[1] = 2>>chroma_h_shift; s->mjpeg_hsample[2] = 2>>chroma_h_shift; if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) || ff_mjpeg_encode_init(s) < 0) return -1; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_H261: if (!CONFIG_H261_ENCODER) return -1; if (ff_h261_get_picture_format(s->width, s->height) < 0) { av_log(avctx, AV_LOG_ERROR, "The specified picture size of %dx%d is not valid for the H.261 codec.\nValid sizes are 176x144, 352x288\n", s->width, s->height); return -1; } s->out_format = FMT_H261; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_H263: if (!CONFIG_H263_ENCODER) return -1; if (h263_get_picture_format(s->width, s->height) == 7) { av_log(avctx, AV_LOG_INFO, "The specified picture size of %dx%d is not valid for the H.263 codec.\nValid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.\n", s->width, s->height); return -1; } s->out_format = FMT_H263; s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_H263P: s->out_format = FMT_H263; s->h263_plus = 1; /* Fx */ s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0; s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0; s->modified_quant= s->h263_aic; s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0; s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0; s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0; s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus; s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0; /* /Fx */ /* These are just to be sure */ avctx->delay=0; s->low_delay=1; break; case CODEC_ID_FLV1: s->out_format = FMT_H263; s->h263_flv = 2; /* format = 1; 11-bit codes */ s->unrestricted_mv = 1; s->rtp_mode=0; /* don't allow GOB */ avctx->delay=0; s->low_delay=1; break; case CODEC_ID_RV10: s->out_format = FMT_H263; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_RV20: s->out_format = FMT_H263; avctx->delay=0; s->low_delay=1; s->modified_quant=1; s->h263_aic=1; s->h263_plus=1; s->loop_filter=1; s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus; break; case CODEC_ID_MPEG4: s->out_format = FMT_H263; s->h263_pred = 1; s->unrestricted_mv = 1; s->low_delay= s->max_b_frames ? 0 : 1; avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); break; case CODEC_ID_MSMPEG4V1: s->out_format = FMT_H263; s->h263_msmpeg4 = 1; s->h263_pred = 1; s->unrestricted_mv = 1; s->msmpeg4_version= 1; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_MSMPEG4V2: s->out_format = FMT_H263; s->h263_msmpeg4 = 1; s->h263_pred = 1; s->unrestricted_mv = 1; s->msmpeg4_version= 2; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_MSMPEG4V3: s->out_format = FMT_H263; s->h263_msmpeg4 = 1; s->h263_pred = 1; s->unrestricted_mv = 1; s->msmpeg4_version= 3; s->flipflop_rounding=1; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_WMV1: s->out_format = FMT_H263; s->h263_msmpeg4 = 1; s->h263_pred = 1; s->unrestricted_mv = 1; s->msmpeg4_version= 4; s->flipflop_rounding=1; avctx->delay=0; s->low_delay=1; break; case CODEC_ID_WMV2: s->out_format = FMT_H263; s->h263_msmpeg4 = 1; s->h263_pred = 1; s->unrestricted_mv = 1; s->msmpeg4_version= 5; s->flipflop_rounding=1; avctx->delay=0; s->low_delay=1; break; default: return -1; } avctx->has_b_frames= !s->low_delay; s->encoding = 1; /* init */ if (MPV_common_init(s) < 0) return -1; if(!s->dct_quantize) s->dct_quantize = dct_quantize_c; if(!s->denoise_dct) s->denoise_dct = denoise_dct_c; s->fast_dct_quantize = s->dct_quantize; if(avctx->trellis) s->dct_quantize = dct_quantize_trellis_c; if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant) s->chroma_qscale_table= ff_h263_chroma_qscale_table; s->progressive_frame= s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN)); s->quant_precision=5; ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp); ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp); if (CONFIG_H261_ENCODER && s->out_format == FMT_H261) ff_h261_encode_init(s); if (CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263) h263_encode_init(s); if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version) ff_msmpeg4_encode_init(s); if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) && s->out_format == FMT_MPEG1) ff_mpeg1_encode_init(s); /* init q matrix */ for(i=0;i<64;i++) { int j= s->dsp.idct_permutation[i]; if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){ s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i]; s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i]; }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){ s->intra_matrix[j] = s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i]; }else { /* mpeg1/2 */ s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i]; s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i]; } if(s->avctx->intra_matrix) s->intra_matrix[j] = s->avctx->intra_matrix[i]; if(s->avctx->inter_matrix) s->inter_matrix[j] = s->avctx->inter_matrix[i]; } /* precompute matrix */ /* for mjpeg, we do include qscale in the matrix */ if (s->out_format != FMT_MJPEG) { ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16, s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1); ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16, s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0); } if(ff_rate_control_init(s) < 0) return -1; return 0; } av_cold int MPV_encode_end(AVCodecContext *avctx) { MpegEncContext *s = avctx->priv_data; ff_rate_control_uninit(s); MPV_common_end(s); if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG) ff_mjpeg_encode_close(s); av_freep(&avctx->extradata); return 0; } static int get_sae(uint8_t *src, int ref, int stride){ int x,y; int acc=0; for(y=0; y<16; y++){ for(x=0; x<16; x++){ acc+= FFABS(src[x+y*stride] - ref); } } return acc; } static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){ int x, y, w, h; int acc=0; w= s->width &~15; h= s->height&~15; for(y=0; ydsp.sad[0](NULL, src + offset, ref + offset, stride, 16); int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8; int sae = get_sae(src + offset, mean, stride); acc+= sae + 500 < sad; } } return acc; } static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){ AVFrame *pic=NULL; int64_t pts; int i; const int encoding_delay= s->max_b_frames; int direct=1; if(pic_arg){ pts= pic_arg->pts; pic_arg->display_picture_number= s->input_picture_number++; if(pts != AV_NOPTS_VALUE){ if(s->user_specified_pts != AV_NOPTS_VALUE){ int64_t time= pts; int64_t last= s->user_specified_pts; if(time <= last){ av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts); return -1; } } s->user_specified_pts= pts; }else{ if(s->user_specified_pts != AV_NOPTS_VALUE){ s->user_specified_pts= pts= s->user_specified_pts + 1; av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts); }else{ pts= pic_arg->display_picture_number; } } } if(pic_arg){ if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0; if(pic_arg->linesize[0] != s->linesize) direct=0; if(pic_arg->linesize[1] != s->uvlinesize) direct=0; if(pic_arg->linesize[2] != s->uvlinesize) direct=0; // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize); if(direct){ i= ff_find_unused_picture(s, 1); pic= (AVFrame*)&s->picture[i]; pic->reference= 3; for(i=0; i<4; i++){ pic->data[i]= pic_arg->data[i]; pic->linesize[i]= pic_arg->linesize[i]; } alloc_picture(s, (Picture*)pic, 1); }else{ i= ff_find_unused_picture(s, 0); pic= (AVFrame*)&s->picture[i]; pic->reference= 3; alloc_picture(s, (Picture*)pic, 0); if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0] && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1] && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){ // empty }else{ int h_chroma_shift, v_chroma_shift; avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift); for(i=0; i<3; i++){ int src_stride= pic_arg->linesize[i]; int dst_stride= i ? s->uvlinesize : s->linesize; int h_shift= i ? h_chroma_shift : 0; int v_shift= i ? v_chroma_shift : 0; int w= s->width >>h_shift; int h= s->height>>v_shift; uint8_t *src= pic_arg->data[i]; uint8_t *dst= pic->data[i]; if(!s->avctx->rc_buffer_size) dst +=INPLACE_OFFSET; if(src_stride==dst_stride) memcpy(dst, src, src_stride*h); else{ while(h--){ memcpy(dst, src, w); dst += dst_stride; src += src_stride; } } } } } copy_picture_attributes(s, pic, pic_arg); pic->pts= pts; //we set this here to avoid modifiying pic_arg } /* shift buffer entries */ for(i=1; iencoding_delay+1*/; i++) s->input_picture[i-1]= s->input_picture[i]; s->input_picture[encoding_delay]= (Picture*)pic; return 0; } static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){ int x, y, plane; int score=0; int64_t score64=0; for(plane=0; plane<3; plane++){ const int stride= p->linesize[plane]; const int bw= plane ? 1 : 2; for(y=0; ymb_height*bw; y++){ for(x=0; xmb_width*bw; x++){ int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16; int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8); switch(s->avctx->frame_skip_exp){ case 0: score= FFMAX(score, v); break; case 1: score+= FFABS(v);break; case 2: score+= v*v;break; case 3: score64+= FFABS(v*v*(int64_t)v);break; case 4: score64+= v*v*(int64_t)(v*v);break; } } } } if(score) score64= score; if(score64 < s->avctx->frame_skip_threshold) return 1; if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8)) return 1; return 0; } static int estimate_best_b_count(MpegEncContext *s){ AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id); AVCodecContext *c= avcodec_alloc_context(); AVFrame input[FF_MAX_B_FRAMES+2]; const int scale= s->avctx->brd_scale; int i, j, out_size, p_lambda, b_lambda, lambda2; int outbuf_size= s->width * s->height; //FIXME uint8_t *outbuf= av_malloc(outbuf_size); int64_t best_rd= INT64_MAX; int best_b_count= -1; assert(scale>=0 && scale <=3); // emms_c(); p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality; b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset; if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else lambda2= (b_lambda*b_lambda + (1<> FF_LAMBDA_SHIFT; c->width = s->width >> scale; c->height= s->height>> scale; c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/; c->flags|= s->avctx->flags & CODEC_FLAG_QPEL; c->mb_decision= s->avctx->mb_decision; c->me_cmp= s->avctx->me_cmp; c->mb_cmp= s->avctx->mb_cmp; c->me_sub_cmp= s->avctx->me_sub_cmp; c->pix_fmt = PIX_FMT_YUV420P; c->time_base= s->avctx->time_base; c->max_b_frames= s->max_b_frames; if (avcodec_open(c, codec) < 0) return -1; for(i=0; imax_b_frames+2; i++){ int ysize= c->width*c->height; int csize= (c->width/2)*(c->height/2); Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr; avcodec_get_frame_defaults(&input[i]); input[i].data[0]= av_malloc(ysize + 2*csize); input[i].data[1]= input[i].data[0] + ysize; input[i].data[2]= input[i].data[1] + csize; input[i].linesize[0]= c->width; input[i].linesize[1]= input[i].linesize[2]= c->width/2; if(pre_input_ptr && (!i || s->input_picture[i-1])) { pre_input= *pre_input_ptr; if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) { pre_input.data[0]+=INPLACE_OFFSET; pre_input.data[1]+=INPLACE_OFFSET; pre_input.data[2]+=INPLACE_OFFSET; } s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height); s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1); s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1); } } for(j=0; jmax_b_frames+1; j++){ int64_t rd=0; if(!s->input_picture[j]) break; c->error[0]= c->error[1]= c->error[2]= 0; input[0].pict_type= FF_I_TYPE; input[0].quality= 1 * FF_QP2LAMBDA; out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]); // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT; for(i=0; imax_b_frames+1; i++){ int is_p= i % (j+1) == j || i==s->max_b_frames; input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE; input[i+1].quality= is_p ? p_lambda : b_lambda; out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]); rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3); } /* get the delayed frames */ while(out_size){ out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL); rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3); } rd += c->error[0] + c->error[1] + c->error[2]; if(rd < best_rd){ best_rd= rd; best_b_count= j; } } av_freep(&outbuf); avcodec_close(c); av_freep(&c); for(i=0; imax_b_frames+2; i++){ av_freep(&input[i].data[0]); } return best_b_count; } static void select_input_picture(MpegEncContext *s){ int i; for(i=1; ireordered_input_picture[i-1]= s->reordered_input_picture[i]; s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL; /* set next picture type & ordering */ if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){ if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){ s->reordered_input_picture[0]= s->input_picture[0]; s->reordered_input_picture[0]->pict_type= FF_I_TYPE; s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++; }else{ int b_frames; if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){ if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){ //FIXME check that te gop check above is +-1 correct //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts); if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){ for(i=0; i<4; i++) s->input_picture[0]->data[i]= NULL; s->input_picture[0]->type= 0; }else{ assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL); s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]); } emms_c(); ff_vbv_update(s, 0); goto no_output_pic; } } if(s->flags&CODEC_FLAG_PASS2){ for(i=0; imax_b_frames+1; i++){ int pict_num= s->input_picture[0]->display_picture_number + i; if(pict_num >= s->rc_context.num_entries) break; if(!s->input_picture[i]){ s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE; break; } s->input_picture[i]->pict_type= s->rc_context.entry[pict_num].new_pict_type; } } if(s->avctx->b_frame_strategy==0){ b_frames= s->max_b_frames; while(b_frames && !s->input_picture[b_frames]) b_frames--; }else if(s->avctx->b_frame_strategy==1){ for(i=1; imax_b_frames+1; i++){ if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){ s->input_picture[i]->b_frame_score= get_intra_count(s, s->input_picture[i ]->data[0], s->input_picture[i-1]->data[0], s->linesize) + 1; } } for(i=0; imax_b_frames+1; i++){ if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break; } b_frames= FFMAX(0, i-1); /* reset scores */ for(i=0; iinput_picture[i]->b_frame_score=0; } }else if(s->avctx->b_frame_strategy==2){ b_frames= estimate_best_b_count(s); }else{ av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n"); b_frames=0; } emms_c(); //static int b_count=0; //b_count+= b_frames; //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count); for(i= b_frames - 1; i>=0; i--){ int type= s->input_picture[i]->pict_type; if(type && type != FF_B_TYPE) b_frames= i; } if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){ av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n"); } if(s->picture_in_gop_number + b_frames >= s->gop_size){ if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){ b_frames= s->gop_size - s->picture_in_gop_number - 1; }else{ if(s->flags & CODEC_FLAG_CLOSED_GOP) b_frames=0; s->input_picture[b_frames]->pict_type= FF_I_TYPE; } } if( (s->flags & CODEC_FLAG_CLOSED_GOP) && b_frames && s->input_picture[b_frames]->pict_type== FF_I_TYPE) b_frames--; s->reordered_input_picture[0]= s->input_picture[b_frames]; if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE) s->reordered_input_picture[0]->pict_type= FF_P_TYPE; s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++; for(i=0; ireordered_input_picture[i+1]= s->input_picture[i]; s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE; s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++; } } } no_output_pic: if(s->reordered_input_picture[0]){ s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0; ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]); if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){ // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable int i= ff_find_unused_picture(s, 0); Picture *pic= &s->picture[i]; pic->reference = s->reordered_input_picture[0]->reference; alloc_picture(s, pic, 0); /* mark us unused / free shared pic */ if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL) s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]); for(i=0; i<4; i++) s->reordered_input_picture[0]->data[i]= NULL; s->reordered_input_picture[0]->type= 0; copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]); s->current_picture_ptr= pic; }else{ // input is not a shared pix -> reuse buffer for current_pix assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL); s->current_picture_ptr= s->reordered_input_picture[0]; for(i=0; i<4; i++){ s->new_picture.data[i]+= INPLACE_OFFSET; } } ff_copy_picture(&s->current_picture, s->current_picture_ptr); s->picture_number= s->new_picture.display_picture_number; //printf("dpn:%d\n", s->picture_number); }else{ memset(&s->new_picture, 0, sizeof(Picture)); } } int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data) { MpegEncContext *s = avctx->priv_data; AVFrame *pic_arg = data; int i, stuffing_count; for(i=0; ithread_count; i++){ int start_y= s->thread_context[i]->start_mb_y; int end_y= s->thread_context[i]-> end_mb_y; int h= s->mb_height; uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h); uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h); init_put_bits(&s->thread_context[i]->pb, start, end - start); } s->picture_in_gop_number++; if(load_input_picture(s, pic_arg) < 0) return -1; select_input_picture(s); /* output? */ if(s->new_picture.data[0]){ s->pict_type= s->new_picture.pict_type; //emms_c(); //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale); MPV_frame_start(s, avctx); vbv_retry: if (encode_picture(s, s->picture_number) < 0) return -1; avctx->real_pict_num = s->picture_number; avctx->header_bits = s->header_bits; avctx->mv_bits = s->mv_bits; avctx->misc_bits = s->misc_bits; avctx->i_tex_bits = s->i_tex_bits; avctx->p_tex_bits = s->p_tex_bits; avctx->i_count = s->i_count; avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx avctx->skip_count = s->skip_count; MPV_frame_end(s); if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG) ff_mjpeg_encode_picture_trailer(s); if(avctx->rc_buffer_size){ RateControlContext *rcc= &s->rc_context; int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use; if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){ s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale); if(s->adaptive_quant){ int i; for(i=0; imb_height*s->mb_stride; i++) s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale); } s->mb_skipped = 0; //done in MPV_frame_start() if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4) s->no_rounding ^= 1; } if(s->pict_type!=FF_B_TYPE){ s->time_base= s->last_time_base; s->last_non_b_time= s->time - s->pp_time; } // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda); for(i=0; ithread_count; i++){ PutBitContext *pb= &s->thread_context[i]->pb; init_put_bits(pb, pb->buf, pb->buf_end - pb->buf); } goto vbv_retry; } assert(s->avctx->rc_max_rate); } if(s->flags&CODEC_FLAG_PASS1) ff_write_pass1_stats(s); for(i=0; i<4; i++){ s->current_picture_ptr->error[i]= s->current_picture.error[i]; avctx->error[i] += s->current_picture_ptr->error[i]; } if(s->flags&CODEC_FLAG_PASS1) assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb)); flush_put_bits(&s->pb); s->frame_bits = put_bits_count(&s->pb); stuffing_count= ff_vbv_update(s, s->frame_bits); if(stuffing_count){ if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){ av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n"); return -1; } switch(s->codec_id){ case CODEC_ID_MPEG1VIDEO: case CODEC_ID_MPEG2VIDEO: while(stuffing_count--){ put_bits(&s->pb, 8, 0); } break; case CODEC_ID_MPEG4: put_bits(&s->pb, 16, 0); put_bits(&s->pb, 16, 0x1C3); stuffing_count -= 4; while(stuffing_count--){ put_bits(&s->pb, 8, 0xFF); } break; default: av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n"); } flush_put_bits(&s->pb); s->frame_bits = put_bits_count(&s->pb); } /* update mpeg1/2 vbv_delay for CBR */ if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){ int vbv_delay; assert(s->repeat_first_field==0); vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate); assert(vbv_delay < 0xFFFF); s->vbv_delay_ptr[0] &= 0xF8; s->vbv_delay_ptr[0] |= vbv_delay>>13; s->vbv_delay_ptr[1] = vbv_delay>>5; s->vbv_delay_ptr[2] &= 0x07; s->vbv_delay_ptr[2] |= vbv_delay<<3; } s->total_bits += s->frame_bits; avctx->frame_bits = s->frame_bits; }else{ assert((pbBufPtr(&s->pb) == s->pb.buf)); s->frame_bits=0; } assert((s->frame_bits&7)==0); return s->frame_bits/8; } static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold) { static const char tab[64]= {3,2,2,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0}; int score=0; int run=0; int i; DCTELEM *block= s->block[n]; const int last_index= s->block_last_index[n]; int skip_dc; if(threshold<0){ skip_dc=0; threshold= -threshold; }else skip_dc=1; /* Are all we could set to zero already zero? */ if(last_index<=skip_dc - 1) return; for(i=0; i<=last_index; i++){ const int j = s->intra_scantable.permutated[i]; const int level = FFABS(block[j]); if(level==1){ if(skip_dc && i==0) continue; score+= tab[run]; run=0; }else if(level>1){ return; }else{ run++; } } if(score >= threshold) return; for(i=skip_dc; i<=last_index; i++){ const int j = s->intra_scantable.permutated[i]; block[j]=0; } if(block[0]) s->block_last_index[n]= 0; else s->block_last_index[n]= -1; } static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index) { int i; const int maxlevel= s->max_qcoeff; const int minlevel= s->min_qcoeff; int overflow=0; if(s->mb_intra){ i=1; //skip clipping of intra dc }else i=0; for(;i<=last_index; i++){ const int j= s->intra_scantable.permutated[i]; int level = block[j]; if (level>maxlevel){ level=maxlevel; overflow++; }else if(levelavctx->mb_decision == FF_MB_DECISION_SIMPLE) av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel); } static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){ int x, y; //FIXME optimize for(y=0; y<8; y++){ for(x=0; x<8; x++){ int x2, y2; int sum=0; int sqr=0; int count=0; for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){ for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){ int v= ptr[x2 + y2*stride]; sum += v; sqr += v*v; count++; } } weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count; } } } static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count) { int16_t weight[8][64]; DCTELEM orig[8][64]; const int mb_x= s->mb_x; const int mb_y= s->mb_y; int i; int skip_dct[8]; int dct_offset = s->linesize*8; //default for progressive frames uint8_t *ptr_y, *ptr_cb, *ptr_cr; int wrap_y, wrap_c; for(i=0; iskipdct; if(s->adaptive_quant){ const int last_qp= s->qscale; const int mb_xy= mb_x + mb_y*s->mb_stride; s->lambda= s->lambda_table[mb_xy]; update_qscale(s); if(!(s->flags&CODEC_FLAG_QP_RD)){ s->qscale= s->current_picture_ptr->qscale_table[mb_xy]; s->dquant= s->qscale - last_qp; if(s->out_format==FMT_H263){ s->dquant= av_clip(s->dquant, -2, 2); if(s->codec_id==CODEC_ID_MPEG4){ if(!s->mb_intra){ if(s->pict_type == FF_B_TYPE){ if(s->dquant&1 || s->mv_dir&MV_DIRECT) s->dquant= 0; } if(s->mv_type==MV_TYPE_8X8) s->dquant=0; } } } } ff_set_qscale(s, last_qp + s->dquant); }else if(s->flags&CODEC_FLAG_QP_RD) ff_set_qscale(s, s->qscale + s->dquant); wrap_y = s->linesize; wrap_c = s->uvlinesize; ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16; ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8; ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8; if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){ uint8_t *ebuf= s->edge_emu_buffer + 32; ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height); ptr_y= ebuf; ff_emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1); ptr_cb= ebuf+18*wrap_y; ff_emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1); ptr_cr= ebuf+18*wrap_y+8; } if (s->mb_intra) { if(s->flags&CODEC_FLAG_INTERLACED_DCT){ int progressive_score, interlaced_score; s->interlaced_dct=0; progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8) +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400; if(progressive_score > 0){ interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8) +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8); if(progressive_score > interlaced_score){ s->interlaced_dct=1; dct_offset= wrap_y; wrap_y<<=1; if (s->chroma_format == CHROMA_422) wrap_c<<=1; } } } s->dsp.get_pixels(s->block[0], ptr_y , wrap_y); s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y); s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y); s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y); if(s->flags&CODEC_FLAG_GRAY){ skip_dct[4]= 1; skip_dct[5]= 1; }else{ s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c); s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c); if(!s->chroma_y_shift){ /* 422 */ s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c); s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c); } } }else{ op_pixels_func (*op_pix)[4]; qpel_mc_func (*op_qpix)[16]; uint8_t *dest_y, *dest_cb, *dest_cr; dest_y = s->dest[0]; dest_cb = s->dest[1]; dest_cr = s->dest[2]; if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){ op_pix = s->dsp.put_pixels_tab; op_qpix= s->dsp.put_qpel_pixels_tab; }else{ op_pix = s->dsp.put_no_rnd_pixels_tab; op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab; } if (s->mv_dir & MV_DIR_FORWARD) { MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix); op_pix = s->dsp.avg_pixels_tab; op_qpix= s->dsp.avg_qpel_pixels_tab; } if (s->mv_dir & MV_DIR_BACKWARD) { MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix); } if(s->flags&CODEC_FLAG_INTERLACED_DCT){ int progressive_score, interlaced_score; s->interlaced_dct=0; progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8) +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400; if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400; if(progressive_score>0){ interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8) +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8); if(progressive_score > interlaced_score){ s->interlaced_dct=1; dct_offset= wrap_y; wrap_y<<=1; if (s->chroma_format == CHROMA_422) wrap_c<<=1; } } } s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y); s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y); s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y); s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y); if(s->flags&CODEC_FLAG_GRAY){ skip_dct[4]= 1; skip_dct[5]= 1; }else{ s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c); s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c); if(!s->chroma_y_shift){ /* 422 */ s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c); s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c); } } /* pre quantization */ if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){ //FIXME optimize if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1; if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1; if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1; if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1; if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1; if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1; if(!s->chroma_y_shift){ /* 422 */ if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1; if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1; } } } if(s->avctx->quantizer_noise_shaping){ if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y); if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y); if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y); if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y); if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c); if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c); if(!s->chroma_y_shift){ /* 422 */ if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c); if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c); } memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count); } /* DCT & quantize */ assert(s->out_format!=FMT_MJPEG || s->qscale==8); { for(i=0;iblock_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow); // FIXME we could decide to change to quantizer instead of clipping // JS: I don't think that would be a good idea it could lower quality instead // of improve it. Just INTRADC clipping deserves changes in quantizer if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]); }else s->block_last_index[i]= -1; } if(s->avctx->quantizer_noise_shaping){ for(i=0;iblock_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale); } } } if(s->luma_elim_threshold && !s->mb_intra) for(i=0; i<4; i++) dct_single_coeff_elimination(s, i, s->luma_elim_threshold); if(s->chroma_elim_threshold && !s->mb_intra) for(i=4; ichroma_elim_threshold); if(s->flags & CODEC_FLAG_CBP_RD){ for(i=0;iblock_last_index[i] == -1) s->coded_score[i]= INT_MAX/256; } } } if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){ s->block_last_index[4]= s->block_last_index[5]= 0; s->block[4][0]= s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale; } //non c quantize code returns incorrect block_last_index FIXME if(s->alternate_scan && s->dct_quantize != dct_quantize_c){ for(i=0; iblock_last_index[i]>0){ for(j=63; j>0; j--){ if(s->block[i][ s->intra_scantable.permutated[j] ]) break; } s->block_last_index[i]= j; } } } /* huffman encode */ switch(s->codec_id){ //FIXME funct ptr could be slightly faster case CODEC_ID_MPEG1VIDEO: case CODEC_ID_MPEG2VIDEO: if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) mpeg1_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_MPEG4: if (CONFIG_MPEG4_ENCODER) mpeg4_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_MSMPEG4V2: case CODEC_ID_MSMPEG4V3: case CODEC_ID_WMV1: if (CONFIG_MSMPEG4_ENCODER) msmpeg4_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_WMV2: if (CONFIG_WMV2_ENCODER) ff_wmv2_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_H261: if (CONFIG_H261_ENCODER) ff_h261_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_H263: case CODEC_ID_H263P: case CODEC_ID_FLV1: case CODEC_ID_RV10: case CODEC_ID_RV20: if (CONFIG_H263_ENCODER || CONFIG_H263P_ENCODER || CONFIG_FLV_ENCODER || CONFIG_RV10_ENCODER || CONFIG_RV20_ENCODER) h263_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_MJPEG: if (CONFIG_MJPEG_ENCODER) ff_mjpeg_encode_mb(s, s->block); break; default: assert(0); } } static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y) { if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6); else encode_mb_internal(s, motion_x, motion_y, 16, 8); } static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){ int i; memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop? /* mpeg1 */ d->mb_skip_run= s->mb_skip_run; for(i=0; i<3; i++) d->last_dc[i]= s->last_dc[i]; /* statistics */ d->mv_bits= s->mv_bits; d->i_tex_bits= s->i_tex_bits; d->p_tex_bits= s->p_tex_bits; d->i_count= s->i_count; d->f_count= s->f_count; d->b_count= s->b_count; d->skip_count= s->skip_count; d->misc_bits= s->misc_bits; d->last_bits= 0; d->mb_skipped= 0; d->qscale= s->qscale; d->dquant= s->dquant; d->esc3_level_length= s->esc3_level_length; } static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){ int i; memcpy(d->mv, s->mv, 2*4*2*sizeof(int)); memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop? /* mpeg1 */ d->mb_skip_run= s->mb_skip_run; for(i=0; i<3; i++) d->last_dc[i]= s->last_dc[i]; /* statistics */ d->mv_bits= s->mv_bits; d->i_tex_bits= s->i_tex_bits; d->p_tex_bits= s->p_tex_bits; d->i_count= s->i_count; d->f_count= s->f_count; d->b_count= s->b_count; d->skip_count= s->skip_count; d->misc_bits= s->misc_bits; d->mb_intra= s->mb_intra; d->mb_skipped= s->mb_skipped; d->mv_type= s->mv_type; d->mv_dir= s->mv_dir; d->pb= s->pb; if(s->data_partitioning){ d->pb2= s->pb2; d->tex_pb= s->tex_pb; } d->block= s->block; for(i=0; i<8; i++) d->block_last_index[i]= s->block_last_index[i]; d->interlaced_dct= s->interlaced_dct; d->qscale= s->qscale; d->esc3_level_length= s->esc3_level_length; } static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type, PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2], int *dmin, int *next_block, int motion_x, int motion_y) { int score; uint8_t *dest_backup[3]; copy_context_before_encode(s, backup, type); s->block= s->blocks[*next_block]; s->pb= pb[*next_block]; if(s->data_partitioning){ s->pb2 = pb2 [*next_block]; s->tex_pb= tex_pb[*next_block]; } if(*next_block){ memcpy(dest_backup, s->dest, sizeof(s->dest)); s->dest[0] = s->rd_scratchpad; s->dest[1] = s->rd_scratchpad + 16*s->linesize; s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8; assert(s->linesize >= 32); //FIXME } encode_mb(s, motion_x, motion_y); score= put_bits_count(&s->pb); if(s->data_partitioning){ score+= put_bits_count(&s->pb2); score+= put_bits_count(&s->tex_pb); } if(s->avctx->mb_decision == FF_MB_DECISION_RD){ MPV_decode_mb(s, s->block); score *= s->lambda2; score += sse_mb(s) << FF_LAMBDA_SHIFT; } if(*next_block){ memcpy(s->dest, dest_backup, sizeof(s->dest)); } if(score<*dmin){ *dmin= score; *next_block^=1; copy_context_after_encode(best, s, type); } } static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){ uint32_t *sq = ff_squareTbl + 256; int acc=0; int x,y; if(w==16 && h==16) return s->dsp.sse[0](NULL, src1, src2, stride, 16); else if(w==8 && h==8) return s->dsp.sse[1](NULL, src1, src2, stride, 8); for(y=0; y=0); return acc; } static int sse_mb(MpegEncContext *s){ int w= 16; int h= 16; if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16; if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16; if(w==16 && h==16) if(s->avctx->mb_cmp == FF_CMP_NSSE){ return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16) +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8) +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8); }else{ return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16) +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8) +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8); } else return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize) +sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize) +sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize); } static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){ MpegEncContext *s= *(void**)arg; s->me.pre_pass=1; s->me.dia_size= s->avctx->pre_dia_size; s->first_slice_line=1; for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) { for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) { ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y); } s->first_slice_line=0; } s->me.pre_pass=0; return 0; } static int estimate_motion_thread(AVCodecContext *c, void *arg){ MpegEncContext *s= *(void**)arg; ff_check_alignment(); s->me.dia_size= s->avctx->dia_size; s->first_slice_line=1; for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) { s->mb_x=0; //for block init below ff_init_block_index(s); for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) { s->block_index[0]+=2; s->block_index[1]+=2; s->block_index[2]+=2; s->block_index[3]+=2; /* compute motion vector & mb_type and store in context */ if(s->pict_type==FF_B_TYPE) ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y); else ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y); } s->first_slice_line=0; } return 0; } static int mb_var_thread(AVCodecContext *c, void *arg){ MpegEncContext *s= *(void**)arg; int mb_x, mb_y; ff_check_alignment(); for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) { for(mb_x=0; mb_x < s->mb_width; mb_x++) { int xx = mb_x * 16; int yy = mb_y * 16; uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx; int varc; int sum = s->dsp.pix_sum(pix, s->linesize); varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8; s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc; s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8; s->me.mb_var_sum_temp += varc; } } return 0; } static void write_slice_end(MpegEncContext *s){ if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){ if(s->partitioned_frame){ ff_mpeg4_merge_partitions(s); } ff_mpeg4_stuffing(&s->pb); }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){ ff_mjpeg_encode_stuffing(&s->pb); } align_put_bits(&s->pb); flush_put_bits(&s->pb); if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame) s->misc_bits+= get_bits_diff(s); } static int encode_thread(AVCodecContext *c, void *arg){ MpegEncContext *s= *(void**)arg; int mb_x, mb_y, pdif = 0; int chr_h= 16>>s->chroma_y_shift; int i, j; MpegEncContext best_s, backup_s; uint8_t bit_buf[2][MAX_MB_BYTES]; uint8_t bit_buf2[2][MAX_MB_BYTES]; uint8_t bit_buf_tex[2][MAX_MB_BYTES]; PutBitContext pb[2], pb2[2], tex_pb[2]; //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y); ff_check_alignment(); for(i=0; i<2; i++){ init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES); init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES); init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES); } s->last_bits= put_bits_count(&s->pb); s->mv_bits=0; s->misc_bits=0; s->i_tex_bits=0; s->p_tex_bits=0; s->i_count=0; s->f_count=0; s->b_count=0; s->skip_count=0; for(i=0; i<3; i++){ /* init last dc values */ /* note: quant matrix value (8) is implied here */ s->last_dc[i] = 128 << s->intra_dc_precision; s->current_picture.error[i] = 0; } s->mb_skip_run = 0; memset(s->last_mv, 0, sizeof(s->last_mv)); s->last_mv_dir = 0; switch(s->codec_id){ case CODEC_ID_H263: case CODEC_ID_H263P: case CODEC_ID_FLV1: if (CONFIG_H263_ENCODER || CONFIG_H263P_ENCODER || CONFIG_FLV_ENCODER) s->gob_index = ff_h263_get_gob_height(s); break; case CODEC_ID_MPEG4: if(CONFIG_MPEG4_ENCODER && s->partitioned_frame) ff_mpeg4_init_partitions(s); break; } s->resync_mb_x=0; s->resync_mb_y=0; s->first_slice_line = 1; s->ptr_lastgob = s->pb.buf; for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) { // printf("row %d at %X\n", s->mb_y, (int)s); s->mb_x=0; s->mb_y= mb_y; ff_set_qscale(s, s->qscale); ff_init_block_index(s); for(mb_x=0; mb_x < s->mb_width; mb_x++) { int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this int mb_type= s->mb_type[xy]; // int d; int dmin= INT_MAX; int dir; if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); return -1; } if(s->data_partitioning){ if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); return -1; } } s->mb_x = mb_x; s->mb_y = mb_y; // moved into loop, can get changed by H.261 ff_update_block_index(s); if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){ ff_h261_reorder_mb_index(s); xy= s->mb_y*s->mb_stride + s->mb_x; mb_type= s->mb_type[xy]; } /* write gob / video packet header */ if(s->rtp_mode){ int current_packet_size, is_gob_start; current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf); is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0; if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1; switch(s->codec_id){ case CODEC_ID_H263: case CODEC_ID_H263P: if(!s->h263_slice_structured) if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0; break; case CODEC_ID_MPEG2VIDEO: if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1; case CODEC_ID_MPEG1VIDEO: if(s->mb_skip_run) is_gob_start=0; break; } if(is_gob_start){ if(s->start_mb_y != mb_y || mb_x!=0){ write_slice_end(s); if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){ ff_mpeg4_init_partitions(s); } } assert((put_bits_count(&s->pb)&7) == 0); current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob; if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){ int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y; int d= 100 / s->avctx->error_rate; if(r % d == 0){ current_packet_size=0; #ifndef ALT_BITSTREAM_WRITER s->pb.buf_ptr= s->ptr_lastgob; #endif assert(pbBufPtr(&s->pb) == s->ptr_lastgob); } } if (s->avctx->rtp_callback){ int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x; s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb); } switch(s->codec_id){ case CODEC_ID_MPEG4: if (CONFIG_MPEG4_ENCODER) { ff_mpeg4_encode_video_packet_header(s); ff_mpeg4_clean_buffers(s); } break; case CODEC_ID_MPEG1VIDEO: case CODEC_ID_MPEG2VIDEO: if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) { ff_mpeg1_encode_slice_header(s); ff_mpeg1_clean_buffers(s); } break; case CODEC_ID_H263: case CODEC_ID_H263P: if (CONFIG_H263_ENCODER || CONFIG_H263P_ENCODER) h263_encode_gob_header(s, mb_y); break; } if(s->flags&CODEC_FLAG_PASS1){ int bits= put_bits_count(&s->pb); s->misc_bits+= bits - s->last_bits; s->last_bits= bits; } s->ptr_lastgob += current_packet_size; s->first_slice_line=1; s->resync_mb_x=mb_x; s->resync_mb_y=mb_y; } } if( (s->resync_mb_x == s->mb_x) && s->resync_mb_y+1 == s->mb_y){ s->first_slice_line=0; } s->mb_skipped=0; s->dquant=0; //only for QP_RD if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD int next_block=0; int pb_bits_count, pb2_bits_count, tex_pb_bits_count; copy_context_before_encode(&backup_s, s, -1); backup_s.pb= s->pb; best_s.data_partitioning= s->data_partitioning; best_s.partitioned_frame= s->partitioned_frame; if(s->data_partitioning){ backup_s.pb2= s->pb2; backup_s.tex_pb= s->tex_pb; } if(mb_type&CANDIDATE_MB_TYPE_INTER){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; s->mb_intra= 0; s->mv[0][0][0] = s->p_mv_table[xy][0]; s->mv[0][0][1] = s->p_mv_table[xy][1]; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb, &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]); } if(mb_type&CANDIDATE_MB_TYPE_INTER_I){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(i=0; i<2; i++){ j= s->field_select[0][i] = s->p_field_select_table[i][xy]; s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0]; s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1]; } encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; s->mb_intra= 0; s->mv[0][0][0] = 0; s->mv[0][0][1] = 0; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb, &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]); } if(mb_type&CANDIDATE_MB_TYPE_INTER4V){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_8X8; s->mb_intra= 0; for(i=0; i<4; i++){ s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0]; s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1]; } encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(mb_type&CANDIDATE_MB_TYPE_FORWARD){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; s->mb_intra= 0; s->mv[0][0][0] = s->b_forw_mv_table[xy][0]; s->mv[0][0][1] = s->b_forw_mv_table[xy][1]; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb, &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]); } if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){ s->mv_dir = MV_DIR_BACKWARD; s->mv_type = MV_TYPE_16X16; s->mb_intra= 0; s->mv[1][0][0] = s->b_back_mv_table[xy][0]; s->mv[1][0][1] = s->b_back_mv_table[xy][1]; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb, &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]); } if(mb_type&CANDIDATE_MB_TYPE_BIDIR){ s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; s->mv_type = MV_TYPE_16X16; s->mb_intra= 0; s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0]; s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1]; s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0]; s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1]; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(i=0; i<2; i++){ j= s->field_select[0][i] = s->b_field_select_table[0][i][xy]; s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0]; s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1]; } encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){ s->mv_dir = MV_DIR_BACKWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(i=0; i<2; i++){ j= s->field_select[1][i] = s->b_field_select_table[1][i][xy]; s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0]; s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1]; } encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){ s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(dir=0; dir<2; dir++){ for(i=0; i<2; i++){ j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy]; s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0]; s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1]; } } encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(mb_type&CANDIDATE_MB_TYPE_INTRA){ s->mv_dir = 0; s->mv_type = MV_TYPE_16X16; s->mb_intra= 1; s->mv[0][0][0] = 0; s->mv[0][0][1] = 0; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); if(s->h263_pred || s->h263_aic){ if(best_s.mb_intra) s->mbintra_table[mb_x + mb_y*s->mb_stride]=1; else ff_clean_intra_table_entries(s); //old mode? } } if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){ if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD const int last_qp= backup_s.qscale; int qpi, qp, dc[6]; DCTELEM ac[6][16]; const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0; static const int dquant_tab[4]={-1,1,-2,2}; assert(backup_s.dquant == 0); //FIXME intra s->mv_dir= best_s.mv_dir; s->mv_type = MV_TYPE_16X16; s->mb_intra= best_s.mb_intra; s->mv[0][0][0] = best_s.mv[0][0][0]; s->mv[0][0][1] = best_s.mv[0][0][1]; s->mv[1][0][0] = best_s.mv[1][0][0]; s->mv[1][0][1] = best_s.mv[1][0][1]; qpi = s->pict_type == FF_B_TYPE ? 2 : 0; for(; qpi<4; qpi++){ int dquant= dquant_tab[qpi]; qp= last_qp + dquant; if(qp < s->avctx->qmin || qp > s->avctx->qmax) continue; backup_s.dquant= dquant; if(s->mb_intra && s->dc_val[0]){ for(i=0; i<6; i++){ dc[i]= s->dc_val[0][ s->block_index[i] ]; memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16); } } encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb, &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]); if(best_s.qscale != qp){ if(s->mb_intra && s->dc_val[0]){ for(i=0; i<6; i++){ s->dc_val[0][ s->block_index[i] ]= dc[i]; memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16); } } } } } } if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){ int mx= s->b_direct_mv_table[xy][0]; int my= s->b_direct_mv_table[xy][1]; backup_s.dquant = 0; s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; s->mb_intra= 0; ff_mpeg4_set_direct_mv(s, mx, my); encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb, &dmin, &next_block, mx, my); } if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){ backup_s.dquant = 0; s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; s->mb_intra= 0; ff_mpeg4_set_direct_mv(s, 0, 0); encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){ int coded=0; for(i=0; i<6; i++) coded |= s->block_last_index[i]; if(coded){ int mx,my; memcpy(s->mv, best_s.mv, sizeof(s->mv)); if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){ mx=my=0; //FIXME find the one we actually used ff_mpeg4_set_direct_mv(s, mx, my); }else if(best_s.mv_dir&MV_DIR_BACKWARD){ mx= s->mv[1][0][0]; my= s->mv[1][0][1]; }else{ mx= s->mv[0][0][0]; my= s->mv[0][0][1]; } s->mv_dir= best_s.mv_dir; s->mv_type = best_s.mv_type; s->mb_intra= 0; /* s->mv[0][0][0] = best_s.mv[0][0][0]; s->mv[0][0][1] = best_s.mv[0][0][1]; s->mv[1][0][0] = best_s.mv[1][0][0]; s->mv[1][0][1] = best_s.mv[1][0][1];*/ backup_s.dquant= 0; s->skipdct=1; encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb, &dmin, &next_block, mx, my); s->skipdct=0; } } s->current_picture.qscale_table[xy]= best_s.qscale; copy_context_after_encode(s, &best_s, -1); pb_bits_count= put_bits_count(&s->pb); flush_put_bits(&s->pb); ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count); s->pb= backup_s.pb; if(s->data_partitioning){ pb2_bits_count= put_bits_count(&s->pb2); flush_put_bits(&s->pb2); ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count); s->pb2= backup_s.pb2; tex_pb_bits_count= put_bits_count(&s->tex_pb); flush_put_bits(&s->tex_pb); ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count); s->tex_pb= backup_s.tex_pb; } s->last_bits= put_bits_count(&s->pb); if (CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE) ff_h263_update_motion_val(s); if(next_block==0){ //FIXME 16 vs linesize16 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16); s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8); s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8); } if(s->avctx->mb_decision == FF_MB_DECISION_BITS) MPV_decode_mb(s, s->block); } else { int motion_x = 0, motion_y = 0; s->mv_type=MV_TYPE_16X16; // only one MB-Type possible switch(mb_type){ case CANDIDATE_MB_TYPE_INTRA: s->mv_dir = 0; s->mb_intra= 1; motion_x= s->mv[0][0][0] = 0; motion_y= s->mv[0][0][1] = 0; break; case CANDIDATE_MB_TYPE_INTER: s->mv_dir = MV_DIR_FORWARD; s->mb_intra= 0; motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0]; motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1]; break; case CANDIDATE_MB_TYPE_INTER_I: s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(i=0; i<2; i++){ j= s->field_select[0][i] = s->p_field_select_table[i][xy]; s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0]; s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1]; } break; case CANDIDATE_MB_TYPE_INTER4V: s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_8X8; s->mb_intra= 0; for(i=0; i<4; i++){ s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0]; s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1]; } break; case CANDIDATE_MB_TYPE_DIRECT: if (CONFIG_MPEG4_ENCODER) { s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT; s->mb_intra= 0; motion_x=s->b_direct_mv_table[xy][0]; motion_y=s->b_direct_mv_table[xy][1]; ff_mpeg4_set_direct_mv(s, motion_x, motion_y); } break; case CANDIDATE_MB_TYPE_DIRECT0: if (CONFIG_MPEG4_ENCODER) { s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT; s->mb_intra= 0; ff_mpeg4_set_direct_mv(s, 0, 0); } break; case CANDIDATE_MB_TYPE_BIDIR: s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; s->mb_intra= 0; s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0]; s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1]; s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0]; s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1]; break; case CANDIDATE_MB_TYPE_BACKWARD: s->mv_dir = MV_DIR_BACKWARD; s->mb_intra= 0; motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0]; motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1]; break; case CANDIDATE_MB_TYPE_FORWARD: s->mv_dir = MV_DIR_FORWARD; s->mb_intra= 0; motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0]; motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1]; // printf(" %d %d ", motion_x, motion_y); break; case CANDIDATE_MB_TYPE_FORWARD_I: s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(i=0; i<2; i++){ j= s->field_select[0][i] = s->b_field_select_table[0][i][xy]; s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0]; s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1]; } break; case CANDIDATE_MB_TYPE_BACKWARD_I: s->mv_dir = MV_DIR_BACKWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(i=0; i<2; i++){ j= s->field_select[1][i] = s->b_field_select_table[1][i][xy]; s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0]; s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1]; } break; case CANDIDATE_MB_TYPE_BIDIR_I: s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD; s->mv_type = MV_TYPE_FIELD; s->mb_intra= 0; for(dir=0; dir<2; dir++){ for(i=0; i<2; i++){ j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy]; s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0]; s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1]; } } break; default: av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n"); } encode_mb(s, motion_x, motion_y); // RAL: Update last macroblock type s->last_mv_dir = s->mv_dir; if (CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE) ff_h263_update_motion_val(s); MPV_decode_mb(s, s->block); } /* clean the MV table in IPS frames for direct mode in B frames */ if(s->mb_intra /* && I,P,S_TYPE */){ s->p_mv_table[xy][0]=0; s->p_mv_table[xy][1]=0; } if(s->flags&CODEC_FLAG_PSNR){ int w= 16; int h= 16; if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16; if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16; s->current_picture.error[0] += sse( s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize); s->current_picture.error[1] += sse( s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h, s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize); s->current_picture.error[2] += sse( s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h, s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize); } if(s->loop_filter){ if(CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263) ff_h263_loop_filter(s); } //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb)); } } //not beautiful here but we must write it before flushing so it has to be here if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE) msmpeg4_encode_ext_header(s); write_slice_end(s); /* Send the last GOB if RTP */ if (s->avctx->rtp_callback) { int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x; pdif = pbBufPtr(&s->pb) - s->ptr_lastgob; /* Call the RTP callback to send the last GOB */ emms_c(); s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb); } return 0; } #define MERGE(field) dst->field += src->field; src->field=0 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){ MERGE(me.scene_change_score); MERGE(me.mc_mb_var_sum_temp); MERGE(me.mb_var_sum_temp); } static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){ int i; MERGE(dct_count[0]); //note, the other dct vars are not part of the context MERGE(dct_count[1]); MERGE(mv_bits); MERGE(i_tex_bits); MERGE(p_tex_bits); MERGE(i_count); MERGE(f_count); MERGE(b_count); MERGE(skip_count); MERGE(misc_bits); MERGE(error_count); MERGE(padding_bug_score); MERGE(current_picture.error[0]); MERGE(current_picture.error[1]); MERGE(current_picture.error[2]); if(dst->avctx->noise_reduction){ for(i=0; i<64; i++){ MERGE(dct_error_sum[0][i]); MERGE(dct_error_sum[1][i]); } } assert(put_bits_count(&src->pb) % 8 ==0); assert(put_bits_count(&dst->pb) % 8 ==0); ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb)); flush_put_bits(&dst->pb); } static int estimate_qp(MpegEncContext *s, int dry_run){ if (s->next_lambda){ s->current_picture_ptr->quality= s->current_picture.quality = s->next_lambda; if(!dry_run) s->next_lambda= 0; } else if (!s->fixed_qscale) { s->current_picture_ptr->quality= s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run); if (s->current_picture.quality < 0) return -1; } if(s->adaptive_quant){ switch(s->codec_id){ case CODEC_ID_MPEG4: if (CONFIG_MPEG4_ENCODER) ff_clean_mpeg4_qscales(s); break; case CODEC_ID_H263: case CODEC_ID_H263P: case CODEC_ID_FLV1: if (CONFIG_H263_ENCODER||CONFIG_H263P_ENCODER||CONFIG_FLV_ENCODER) ff_clean_h263_qscales(s); break; } s->lambda= s->lambda_table[0]; //FIXME broken }else s->lambda= s->current_picture.quality; //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality); update_qscale(s); return 0; } /* must be called before writing the header */ static void set_frame_distances(MpegEncContext * s){ assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE); s->time= s->current_picture_ptr->pts*s->avctx->time_base.num; if(s->pict_type==FF_B_TYPE){ s->pb_time= s->pp_time - (s->last_non_b_time - s->time); assert(s->pb_time > 0 && s->pb_time < s->pp_time); }else{ s->pp_time= s->time - s->last_non_b_time; s->last_non_b_time= s->time; assert(s->picture_number==0 || s->pp_time > 0); } } static int encode_picture(MpegEncContext *s, int picture_number) { int i; int bits; s->picture_number = picture_number; /* Reset the average MB variance */ s->me.mb_var_sum_temp = s->me.mc_mb_var_sum_temp = 0; /* we need to initialize some time vars before we can encode b-frames */ // RAL: Condition added for MPEG1VIDEO if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4)) set_frame_distances(s); if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4) ff_set_mpeg4_time(s); s->me.scene_change_score=0; // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion if(s->pict_type==FF_I_TYPE){ if(s->msmpeg4_version >= 3) s->no_rounding=1; else s->no_rounding=0; }else if(s->pict_type!=FF_B_TYPE){ if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4) s->no_rounding ^= 1; } if(s->flags & CODEC_FLAG_PASS2){ if (estimate_qp(s,1) < 0) return -1; ff_get_2pass_fcode(s); }else if(!(s->flags & CODEC_FLAG_QSCALE)){ if(s->pict_type==FF_B_TYPE) s->lambda= s->last_lambda_for[s->pict_type]; else s->lambda= s->last_lambda_for[s->last_non_b_pict_type]; update_qscale(s); } s->mb_intra=0; //for the rate distortion & bit compare functions for(i=1; iavctx->thread_count; i++){ ff_update_duplicate_context(s->thread_context[i], s); } if(ff_init_me(s)<0) return -1; /* Estimate motion for every MB */ if(s->pict_type != FF_I_TYPE){ s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8; s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8; if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){ if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){ s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*)); } } s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*)); }else /* if(s->pict_type == FF_I_TYPE) */{ /* I-Frame */ for(i=0; imb_stride*s->mb_height; i++) s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA; if(!s->fixed_qscale){ /* finding spatial complexity for I-frame rate control */ s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*)); } } for(i=1; iavctx->thread_count; i++){ merge_context_after_me(s, s->thread_context[i]); } s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp; s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp; emms_c(); if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){ s->pict_type= FF_I_TYPE; for(i=0; imb_stride*s->mb_height; i++) s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA; //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum); } if(!s->umvplus){ if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) { s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER); if(s->flags & CODEC_FLAG_INTERLACED_ME){ int a,b; a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I); s->f_code= FFMAX3(s->f_code, a, b); } ff_fix_long_p_mvs(s); ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0); if(s->flags & CODEC_FLAG_INTERLACED_ME){ int j; for(i=0; i<2; i++){ for(j=0; j<2; j++) ff_fix_long_mvs(s, s->p_field_select_table[i], j, s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0); } } } if(s->pict_type==FF_B_TYPE){ int a, b; a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD); b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR); s->f_code = FFMAX(a, b); a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD); b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR); s->b_code = FFMAX(a, b); ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1); ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1); ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1); ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1); if(s->flags & CODEC_FLAG_INTERLACED_ME){ int dir, j; for(dir=0; dir<2; dir++){ for(i=0; i<2; i++){ for(j=0; j<2; j++){ int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I) : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I); ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j, s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1); } } } } } } if (estimate_qp(s, 0) < 0) return -1; if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE)) s->qscale= 3; //reduce clipping problems if (s->out_format == FMT_MJPEG) { /* for mjpeg, we do include qscale in the matrix */ s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0]; for(i=1;i<64;i++){ int j= s->dsp.idct_permutation[i]; s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3); } ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16, s->intra_matrix, s->intra_quant_bias, 8, 8, 1); s->qscale= 8; } //FIXME var duplication s->current_picture_ptr->key_frame= s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr s->current_picture_ptr->pict_type= s->current_picture.pict_type= s->pict_type; if(s->current_picture.key_frame) s->picture_in_gop_number=0; s->last_bits= put_bits_count(&s->pb); switch(s->out_format) { case FMT_MJPEG: if (CONFIG_MJPEG_ENCODER) ff_mjpeg_encode_picture_header(s); break; case FMT_H261: if (CONFIG_H261_ENCODER) ff_h261_encode_picture_header(s, picture_number); break; case FMT_H263: if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2) ff_wmv2_encode_picture_header(s, picture_number); else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4) msmpeg4_encode_picture_header(s, picture_number); else if (CONFIG_MPEG4_ENCODER && s->h263_pred) mpeg4_encode_picture_header(s, picture_number); else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10) rv10_encode_picture_header(s, picture_number); else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20) rv20_encode_picture_header(s, picture_number); else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1) ff_flv_encode_picture_header(s, picture_number); else if (CONFIG_ANY_H263_ENCODER) h263_encode_picture_header(s, picture_number); break; case FMT_MPEG1: if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) mpeg1_encode_picture_header(s, picture_number); break; case FMT_H264: break; default: assert(0); } bits= put_bits_count(&s->pb); s->header_bits= bits - s->last_bits; for(i=1; iavctx->thread_count; i++){ update_duplicate_context_after_me(s->thread_context[i], s); } s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*)); for(i=1; iavctx->thread_count; i++){ merge_context_after_encode(s, s->thread_context[i]); } emms_c(); return 0; } void denoise_dct_c(MpegEncContext *s, DCTELEM *block){ const int intra= s->mb_intra; int i; s->dct_count[intra]++; for(i=0; i<64; i++){ int level= block[i]; if(level){ if(level>0){ s->dct_error_sum[intra][i] += level; level -= s->dct_offset[intra][i]; if(level<0) level=0; }else{ s->dct_error_sum[intra][i] -= level; level += s->dct_offset[intra][i]; if(level>0) level=0; } block[i]= level; } } } int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow){ const int *qmat; const uint8_t *scantable= s->intra_scantable.scantable; const uint8_t *perm_scantable= s->intra_scantable.permutated; int max=0; unsigned int threshold1, threshold2; int bias=0; int run_tab[65]; int level_tab[65]; int score_tab[65]; int survivor[65]; int survivor_count; int last_run=0; int last_level=0; int last_score= 0; int last_i; int coeff[2][64]; int coeff_count[64]; int qmul, qadd, start_i, last_non_zero, i, dc; const int esc_length= s->ac_esc_length; uint8_t * length; uint8_t * last_length; const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6); s->dsp.fdct (block); if(s->dct_error_sum) s->denoise_dct(s, block); qmul= qscale*16; qadd= ((qscale-1)|1)*8; if (s->mb_intra) { int q; if (!s->h263_aic) { if (n < 4) q = s->y_dc_scale; else q = s->c_dc_scale; q = q << 3; } else{ /* For AIC we skip quant/dequant of INTRADC */ q = 1 << 3; qadd=0; } /* note: block[0] is assumed to be positive */ block[0] = (block[0] + (q >> 1)) / q; start_i = 1; last_non_zero = 0; qmat = s->q_intra_matrix[qscale]; if(s->mpeg_quant || s->out_format == FMT_MPEG1) bias= 1<<(QMAT_SHIFT-1); length = s->intra_ac_vlc_length; last_length= s->intra_ac_vlc_last_length; } else { start_i = 0; last_non_zero = -1; qmat = s->q_inter_matrix[qscale]; length = s->inter_ac_vlc_length; last_length= s->inter_ac_vlc_last_length; } last_i= start_i; threshold1= (1<=start_i; i--) { const int j = scantable[i]; int level = block[j] * qmat[j]; if(((unsigned)(level+threshold1))>threshold2){ last_non_zero = i; break; } } for(i=start_i; i<=last_non_zero; i++) { const int j = scantable[i]; int level = block[j] * qmat[j]; // if( bias+level >= (1<<(QMAT_SHIFT - 3)) // || bias-level >= (1<<(QMAT_SHIFT - 3))){ if(((unsigned)(level+threshold1))>threshold2){ if(level>0){ level= (bias + level)>>QMAT_SHIFT; coeff[0][i]= level; coeff[1][i]= level-1; // coeff[2][k]= level-2; }else{ level= (bias - level)>>QMAT_SHIFT; coeff[0][i]= -level; coeff[1][i]= -level+1; // coeff[2][k]= -level+2; } coeff_count[i]= FFMIN(level, 2); assert(coeff_count[i]); max |=level; }else{ coeff[0][i]= (level>>31)|1; coeff_count[i]= 1; } } *overflow= s->max_qcoeff < max; //overflow might have happened if(last_non_zero < start_i){ memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM)); return last_non_zero; } score_tab[start_i]= 0; survivor[0]= start_i; survivor_count= 1; for(i=start_i; i<=last_non_zero; i++){ int level_index, j, zero_distortion; int dct_coeff= FFABS(block[ scantable[i] ]); int best_score=256*256*256*120; if ( s->dsp.fdct == fdct_ifast #ifndef FAAN_POSTSCALE || s->dsp.fdct == ff_faandct #endif ) dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12; zero_distortion= dct_coeff*dct_coeff; for(level_index=0; level_index < coeff_count[i]; level_index++){ int distortion; int level= coeff[level_index][i]; const int alevel= FFABS(level); int unquant_coeff; assert(level); if(s->out_format == FMT_H263){ unquant_coeff= alevel*qmul + qadd; }else{ //MPEG1 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize if(s->mb_intra){ unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3; unquant_coeff = (unquant_coeff - 1) | 1; }else{ unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4; unquant_coeff = (unquant_coeff - 1) | 1; } unquant_coeff<<= 3; } distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion; level+=64; if((level&(~127)) == 0){ for(j=survivor_count-1; j>=0; j--){ int run= i - survivor[j]; int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda; score += score_tab[i-run]; if(score < best_score){ best_score= score; run_tab[i+1]= run; level_tab[i+1]= level-64; } } if(s->out_format == FMT_H263){ for(j=survivor_count-1; j>=0; j--){ int run= i - survivor[j]; int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda; score += score_tab[i-run]; if(score < last_score){ last_score= score; last_run= run; last_level= level-64; last_i= i+1; } } } }else{ distortion += esc_length*lambda; for(j=survivor_count-1; j>=0; j--){ int run= i - survivor[j]; int score= distortion + score_tab[i-run]; if(score < best_score){ best_score= score; run_tab[i+1]= run; level_tab[i+1]= level-64; } } if(s->out_format == FMT_H263){ for(j=survivor_count-1; j>=0; j--){ int run= i - survivor[j]; int score= distortion + score_tab[i-run]; if(score < last_score){ last_score= score; last_run= run; last_level= level-64; last_i= i+1; } } } } } score_tab[i+1]= best_score; //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level if(last_non_zero <= 27){ for(; survivor_count; survivor_count--){ if(score_tab[ survivor[survivor_count-1] ] <= best_score) break; } }else{ for(; survivor_count; survivor_count--){ if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda) break; } } survivor[ survivor_count++ ]= i+1; } if(s->out_format != FMT_H263){ last_score= 256*256*256*120; for(i= survivor[0]; i<=last_non_zero + 1; i++){ int score= score_tab[i]; if(i) score += lambda*2; //FIXME exacter? if(score < last_score){ last_score= score; last_i= i; last_level= level_tab[i]; last_run= run_tab[i]; } } } s->coded_score[n] = last_score; dc= FFABS(block[0]); last_non_zero= last_i - 1; memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM)); if(last_non_zero < start_i) return last_non_zero; if(last_non_zero == 0 && start_i == 0){ int best_level= 0; int best_score= dc * dc; for(i=0; iout_format == FMT_H263){ unquant_coeff= (alevel*qmul + qadd)>>3; }else{ //MPEG1 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4; unquant_coeff = (unquant_coeff - 1) | 1; } unquant_coeff = (unquant_coeff + 4) >> 3; unquant_coeff<<= 3 + 3; distortion= (unquant_coeff - dc) * (unquant_coeff - dc); level+=64; if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda; else score= distortion + esc_length*lambda; if(score < best_score){ best_score= score; best_level= level - 64; } } block[0]= best_level; s->coded_score[n] = best_score - dc*dc; if(best_level == 0) return -1; else return last_non_zero; } i= last_i; assert(last_level); block[ perm_scantable[last_non_zero] ]= last_level; i -= last_run + 1; for(; i>start_i; i -= run_tab[i] + 1){ block[ perm_scantable[i-1] ]= level_tab[i]; } return last_non_zero; } //#define REFINE_STATS 1 static int16_t basis[64][64]; static void build_basis(uint8_t *perm){ int i, j, x, y; emms_c(); for(i=0; i<8; i++){ for(j=0; j<8; j++){ for(y=0; y<8; y++){ for(x=0; x<8; x++){ double s= 0.25*(1<intra_scantable.scantable; const uint8_t *perm_scantable= s->intra_scantable.permutated; // unsigned int threshold1, threshold2; // int bias=0; int run_tab[65]; int prev_run=0; int prev_level=0; int qmul, qadd, start_i, last_non_zero, i, dc; uint8_t * length; uint8_t * last_length; int lambda; int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true #ifdef REFINE_STATS static int count=0; static int after_last=0; static int to_zero=0; static int from_zero=0; static int raise=0; static int lower=0; static int messed_sign=0; #endif if(basis[0][0] == 0) build_basis(s->dsp.idct_permutation); qmul= qscale*2; qadd= (qscale-1)|1; if (s->mb_intra) { if (!s->h263_aic) { if (n < 4) q = s->y_dc_scale; else q = s->c_dc_scale; } else{ /* For AIC we skip quant/dequant of INTRADC */ q = 1; qadd=0; } q <<= RECON_SHIFT-3; /* note: block[0] is assumed to be positive */ dc= block[0]*q; // block[0] = (block[0] + (q >> 1)) / q; start_i = 1; qmat = s->q_intra_matrix[qscale]; // if(s->mpeg_quant || s->out_format == FMT_MPEG1) // bias= 1<<(QMAT_SHIFT-1); length = s->intra_ac_vlc_length; last_length= s->intra_ac_vlc_last_length; } else { dc= 0; start_i = 0; qmat = s->q_inter_matrix[qscale]; length = s->inter_ac_vlc_length; last_length= s->inter_ac_vlc_last_length; } last_non_zero = s->block_last_index[n]; #ifdef REFINE_STATS {START_TIMER #endif dc += (1<<(RECON_SHIFT-1)); for(i=0; i<64; i++){ rem[i]= dc - (orig[i]<0); assert(w<(1<<6)); sum += w*w; } lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6); #ifdef REFINE_STATS {START_TIMER #endif run=0; rle_index=0; for(i=start_i; i<=last_non_zero; i++){ int j= perm_scantable[i]; const int level= block[j]; int coeff; if(level){ if(level<0) coeff= qmul*level - qadd; else coeff= qmul*level + qadd; run_tab[rle_index++]=run; run=0; s->dsp.add_8x8basis(rem, basis[j], coeff); }else{ run++; } } #ifdef REFINE_STATS if(last_non_zero>0){ STOP_TIMER("init rem[]") } } {START_TIMER #endif for(;;){ int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0); int best_coeff=0; int best_change=0; int run2, best_unquant_change=0, analyze_gradient; #ifdef REFINE_STATS {START_TIMER #endif analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3; if(analyze_gradient){ #ifdef REFINE_STATS {START_TIMER #endif for(i=0; i<64; i++){ int w= weight[i]; d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12); } #ifdef REFINE_STATS STOP_TIMER("rem*w*w")} {START_TIMER #endif s->dsp.fdct(d1); #ifdef REFINE_STATS STOP_TIMER("dct")} #endif } if(start_i){ const int level= block[0]; int change, old_coeff; assert(s->mb_intra); old_coeff= q*level; for(change=-1; change<=1; change+=2){ int new_level= level + change; int score, new_coeff; new_coeff= q*new_level; if(new_coeff >= 2048 || new_coeff < 0) continue; score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff); if(scoreavctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1) break; if(level){ if(level<0) old_coeff= qmul*level - qadd; else old_coeff= qmul*level + qadd; run2= run_tab[rle_index++]; //FIXME ! maybe after last }else{ old_coeff=0; run2--; assert(run2>=0 || i >= last_non_zero ); } for(change=-1; change<=1; change+=2){ int new_level= level + change; int score, new_coeff, unquant_change; score=0; if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level)) continue; if(new_level){ if(new_level<0) new_coeff= qmul*new_level - qadd; else new_coeff= qmul*new_level + qadd; if(new_coeff >= 2048 || new_coeff <= -2048) continue; //FIXME check for overflow if(level){ if(level < 63 && level > -63){ if(i < last_non_zero) score += length[UNI_AC_ENC_INDEX(run, new_level+64)] - length[UNI_AC_ENC_INDEX(run, level+64)]; else score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)] - last_length[UNI_AC_ENC_INDEX(run, level+64)]; } }else{ assert(FFABS(new_level)==1); if(analyze_gradient){ int g= d1[ scantable[i] ]; if(g && (g^new_level) >= 0) continue; } if(i < last_non_zero){ int next_i= i + run2 + 1; int next_level= block[ perm_scantable[next_i] ] + 64; if(next_level&(~127)) next_level= 0; if(next_i < last_non_zero) score += length[UNI_AC_ENC_INDEX(run, 65)] + length[UNI_AC_ENC_INDEX(run2, next_level)] - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]; else score += length[UNI_AC_ENC_INDEX(run, 65)] + last_length[UNI_AC_ENC_INDEX(run2, next_level)] - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]; }else{ score += last_length[UNI_AC_ENC_INDEX(run, 65)]; if(prev_level){ score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)] - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]; } } } }else{ new_coeff=0; assert(FFABS(level)==1); if(i < last_non_zero){ int next_i= i + run2 + 1; int next_level= block[ perm_scantable[next_i] ] + 64; if(next_level&(~127)) next_level= 0; if(next_i < last_non_zero) score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)] - length[UNI_AC_ENC_INDEX(run2, next_level)] - length[UNI_AC_ENC_INDEX(run, 65)]; else score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)] - last_length[UNI_AC_ENC_INDEX(run2, next_level)] - length[UNI_AC_ENC_INDEX(run, 65)]; }else{ score += -last_length[UNI_AC_ENC_INDEX(run, 65)]; if(prev_level){ score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)] - length[UNI_AC_ENC_INDEX(prev_run, prev_level)]; } } } score *= lambda; unquant_change= new_coeff - old_coeff; assert((score < 100*lambda && score > -100*lambda) || lambda==0); score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change); if(score last_non_zero){ last_non_zero= best_coeff; assert(block[j]); #ifdef REFINE_STATS after_last++; #endif }else{ #ifdef REFINE_STATS if(block[j]){ if(block[j] - best_change){ if(FFABS(block[j]) > FFABS(block[j] - best_change)){ raise++; }else{ lower++; } }else{ from_zero++; } }else{ to_zero++; } #endif for(; last_non_zero>=start_i; last_non_zero--){ if(block[perm_scantable[last_non_zero]]) break; } } #ifdef REFINE_STATS count++; if(256*256*256*64 % count == 0){ printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number); } #endif run=0; rle_index=0; for(i=start_i; i<=last_non_zero; i++){ int j= perm_scantable[i]; const int level= block[j]; if(level){ run_tab[rle_index++]=run; run=0; }else{ run++; } } s->dsp.add_8x8basis(rem, basis[j], best_unquant_change); }else{ break; } } #ifdef REFINE_STATS if(last_non_zero>0){ STOP_TIMER("iterative search") } } #endif return last_non_zero; } int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow) { int i, j, level, last_non_zero, q, start_i; const int *qmat; const uint8_t *scantable= s->intra_scantable.scantable; int bias; int max=0; unsigned int threshold1, threshold2; s->dsp.fdct (block); if(s->dct_error_sum) s->denoise_dct(s, block); if (s->mb_intra) { if (!s->h263_aic) { if (n < 4) q = s->y_dc_scale; else q = s->c_dc_scale; q = q << 3; } else /* For AIC we skip quant/dequant of INTRADC */ q = 1 << 3; /* note: block[0] is assumed to be positive */ block[0] = (block[0] + (q >> 1)) / q; start_i = 1; last_non_zero = 0; qmat = s->q_intra_matrix[qscale]; bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT); } else { start_i = 0; last_non_zero = -1; qmat = s->q_inter_matrix[qscale]; bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT); } threshold1= (1<=start_i;i--) { j = scantable[i]; level = block[j] * qmat[j]; if(((unsigned)(level+threshold1))>threshold2){ last_non_zero = i; break; }else{ block[j]=0; } } for(i=start_i; i<=last_non_zero; i++) { j = scantable[i]; level = block[j] * qmat[j]; // if( bias+level >= (1<= (1<threshold2){ if(level>0){ level= (bias + level)>>QMAT_SHIFT; block[j]= level; }else{ level= (bias - level)>>QMAT_SHIFT; block[j]= -level; } max |=level; }else{ block[j]=0; } } *overflow= s->max_qcoeff < max; //overflow might have happened /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */ if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM) ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero); return last_non_zero; } AVCodec h263_encoder = { "h263", CODEC_TYPE_VIDEO, CODEC_ID_H263, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"), }; AVCodec h263p_encoder = { "h263p", CODEC_TYPE_VIDEO, CODEC_ID_H263P, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"), }; AVCodec flv_encoder = { "flv", CODEC_TYPE_VIDEO, CODEC_ID_FLV1, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV)"), }; AVCodec rv10_encoder = { "rv10", CODEC_TYPE_VIDEO, CODEC_ID_RV10, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("RealVideo 1.0"), }; AVCodec rv20_encoder = { "rv20", CODEC_TYPE_VIDEO, CODEC_ID_RV20, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"), }; AVCodec mpeg4_encoder = { "mpeg4", CODEC_TYPE_VIDEO, CODEC_ID_MPEG4, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .capabilities= CODEC_CAP_DELAY, .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"), }; AVCodec msmpeg4v1_encoder = { "msmpeg4v1", CODEC_TYPE_VIDEO, CODEC_ID_MSMPEG4V1, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"), }; AVCodec msmpeg4v2_encoder = { "msmpeg4v2", CODEC_TYPE_VIDEO, CODEC_ID_MSMPEG4V2, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"), }; AVCodec msmpeg4v3_encoder = { "msmpeg4", CODEC_TYPE_VIDEO, CODEC_ID_MSMPEG4V3, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"), }; AVCodec wmv1_encoder = { "wmv1", CODEC_TYPE_VIDEO, CODEC_ID_WMV1, sizeof(MpegEncContext), MPV_encode_init, MPV_encode_picture, MPV_encode_end, .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE}, .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"), };