/* * 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 Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * The simplest mpeg encoder (well, it was the simplest!). */ #include "libavutil/internal.h" #include "libavutil/intmath.h" #include "libavutil/mathematics.h" #include "libavutil/pixdesc.h" #include "libavutil/opt.h" #include "avcodec.h" #include "dct.h" #include "dsputil.h" #include "mpeg12.h" #include "mpegvideo.h" #include "h261.h" #include "h263.h" #include "mathops.h" #include "mjpegenc.h" #include "msmpeg4.h" #include "faandct.h" #include "thread.h" #include "aandcttab.h" #include "flv.h" #include "mpeg4video.h" #include "internal.h" #include "bytestream.h" #include static int encode_picture(MpegEncContext *s, int picture_number); static int dct_quantize_refine(MpegEncContext *s, int16_t *block, int16_t *weight, int16_t *orig, int n, int qscale); static int sse_mb(MpegEncContext *s); static void denoise_dct_c(MpegEncContext *s, int16_t *block); static int dct_quantize_trellis_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow); static uint8_t default_mv_penalty[MAX_FCODE + 1][MAX_MV * 2 + 1]; static uint8_t default_fcode_tab[MAX_MV * 2 + 1]; const AVOption ff_mpv_generic_options[] = { FF_MPV_COMMON_OPTS { NULL }, }; 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_8 || dsp->fdct == ff_jpeg_fdct_islow_10 || dsp->fdct == ff_faandct) { for (i = 0; i < 64; i++) { const int j = dsp->idct_permutation[i]; /* 16 <= qscale * quant_matrix[i] <= 7905 * Assume x = ff_aanscales[i] * qscale * quant_matrix[i] * 19952 <= x <= 249205026 * (1 << 36) / 19952 >= (1 << 36) / (x) >= (1 << 36) / 249205026 * 3444240 >= (1 << 36) / (x) >= 275 */ qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j])); } } else if (dsp->fdct == ff_fdct_ifast) { for (i = 0; i < 64; i++) { const int j = dsp->idct_permutation[i]; /* 16 <= qscale * quant_matrix[i] <= 7905 * Assume x = ff_aanscales[i] * qscale * quant_matrix[i] * 19952 <= x <= 249205026 * (1 << 36) / 19952 >= (1 << 36) / (x) >= (1 << 36) / 249205026 * 3444240 >= (1 << 36) / (x) >= 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 * Assume x = qscale * quant_matrix[i] * So 16 <= x <= 7905 * so (1 << 19) / 16 >= (1 << 19) / (x) >= (1 << 19) / 7905 * so 32768 >= (1 << 19) / (x) >= 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 == ff_fdct_ifast) { 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); } /** * init s->current_picture.qscale_table from s->lambda_table */ void ff_init_qscale_tab(MpegEncContext *s) { int8_t * const qscale_table = s->current_picture.qscale_table; int i; for (i = 0; i < s->mb_num; i++) { unsigned int lam = s->lambda_table[s->mb_index2xy[i]]; int qp = (lam * 139 + FF_LAMBDA_SCALE * 64) >> (FF_LAMBDA_SHIFT + 7); qscale_table[s->mb_index2xy[i]] = av_clip(qp, s->avctx->qmin, s->avctx->qmax); } } 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 } /** * Set 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; ff_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 ff_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 AV_CODEC_ID_MPEG2VIDEO: if (avctx->pix_fmt != AV_PIX_FMT_YUV420P && avctx->pix_fmt != AV_PIX_FMT_YUV422P) { av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n"); return -1; } break; case AV_CODEC_ID_LJPEG: if (avctx->pix_fmt != AV_PIX_FMT_YUVJ420P && avctx->pix_fmt != AV_PIX_FMT_YUVJ422P && avctx->pix_fmt != AV_PIX_FMT_YUVJ444P && avctx->pix_fmt != AV_PIX_FMT_BGRA && ((avctx->pix_fmt != AV_PIX_FMT_YUV420P && avctx->pix_fmt != AV_PIX_FMT_YUV422P && avctx->pix_fmt != AV_PIX_FMT_YUV444P) || avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL)) { av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n"); return -1; } break; case AV_CODEC_ID_MJPEG: if (avctx->pix_fmt != AV_PIX_FMT_YUVJ420P && avctx->pix_fmt != AV_PIX_FMT_YUVJ422P && ((avctx->pix_fmt != AV_PIX_FMT_YUV420P && avctx->pix_fmt != AV_PIX_FMT_YUV422P) || avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL)) { av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n"); return -1; } break; default: if (avctx->pix_fmt != AV_PIX_FMT_YUV420P) { av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n"); return -1; } } switch (avctx->pix_fmt) { case AV_PIX_FMT_YUVJ422P: case AV_PIX_FMT_YUV422P: s->chroma_format = CHROMA_422; break; case AV_PIX_FMT_YUVJ420P: case AV_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->strict_std_compliance = avctx->strict_std_compliance; 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->mpv_flags & FF_MPV_FLAG_QP_RD)) && !s->fixed_qscale; s->loop_filter = !!(s->flags & CODEC_FLAG_LOOP_FILTER); 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 * (int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den) { av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n"); return -1; } if (!s->fixed_qscale && 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 == AV_CODEC_ID_MPEG1VIDEO || s->codec_id == AV_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 != AV_CODEC_ID_MPEG4 && s->codec_id != AV_CODEC_ID_H263 && s->codec_id != AV_CODEC_ID_H263P && s->codec_id != AV_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->quarter_sample && s->codec_id != AV_CODEC_ID_MPEG4) { av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n"); return -1; } if (s->max_b_frames && s->codec_id != AV_CODEC_ID_MPEG4 && s->codec_id != AV_CODEC_ID_MPEG1VIDEO && s->codec_id != AV_CODEC_ID_MPEG2VIDEO) { av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n"); return -1; } if ((s->codec_id == AV_CODEC_ID_MPEG4 || s->codec_id == AV_CODEC_ID_H263 || s->codec_id == AV_CODEC_ID_H263P) && (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) { av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n", avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den); return -1; } if ((s->flags & (CODEC_FLAG_INTERLACED_DCT | CODEC_FLAG_INTERLACED_ME)) && s->codec_id != AV_CODEC_ID_MPEG4 && s->codec_id != AV_CODEC_ID_MPEG2VIDEO) { av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n"); return -1; } // FIXME mpeg2 uses that too if (s->mpeg_quant && s->codec_id != AV_CODEC_ID_MPEG4) { av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n"); return -1; } if ((s->mpv_flags & FF_MPV_FLAG_CBP_RD) && !avctx->trellis) { av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n"); return -1; } if ((s->mpv_flags & FF_MPV_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->flags & CODEC_FLAG_LOW_DELAY) { if (s->codec_id != AV_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 (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 != AV_CODEC_ID_MPEG4 && s->codec_id != AV_CODEC_ID_MPEG1VIDEO && s->codec_id != AV_CODEC_ID_MPEG2VIDEO && (s->codec_id != AV_CODEC_ID_H263P)) { av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n"); return -1; } if (s->avctx->thread_count < 1) { av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec," "patch welcome\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->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->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG1VIDEO || s->codec_id == AV_CODEC_ID_MPEG2VIDEO || s->codec_id == AV_CODEC_ID_MJPEG) { // (a + x * 3 / 8) / x s->intra_quant_bias = 3 << (QUANT_BIAS_SHIFT - 3); s->inter_quant_bias = 0; } else { s->intra_quant_bias = 0; // (a - x / 4) / x s->inter_quant_bias = -(1 << (QUANT_BIAS_SHIFT - 2)); } 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; av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift); if (avctx->codec_id == AV_CODEC_ID_MPEG4 && s->avctx->time_base.den > (1 << 16) - 1) { av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, " "the maximum admitted value for the timebase denominator " "is %d\n", s->avctx->time_base.num, s->avctx->time_base.den, (1 << 16) - 1); return -1; } s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1; switch (avctx->codec->id) { case AV_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 AV_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 AV_CODEC_ID_LJPEG: case AV_CODEC_ID_MJPEG: s->out_format = FMT_MJPEG; s->intra_only = 1; /* force intra only for jpeg */ if (avctx->codec->id == AV_CODEC_ID_LJPEG && avctx->pix_fmt == AV_PIX_FMT_BGRA) { s->mjpeg_vsample[0] = s->mjpeg_hsample[0] = s->mjpeg_vsample[1] = s->mjpeg_hsample[1] = s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1; } else { 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 AV_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 AV_CODEC_ID_H263: if (!CONFIG_H263_ENCODER) return -1; if (ff_match_2uint16(ff_h263_format, FF_ARRAY_ELEMS(ff_h263_format), s->width, s->height) == 8) { 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; avctx->delay = 0; s->low_delay = 1; break; case AV_CODEC_ID_H263P: s->out_format = FMT_H263; s->h263_plus = 1; /* Fx */ s->h263_aic = (avctx->flags & CODEC_FLAG_AC_PRED) ? 1 : 0; s->modified_quant = s->h263_aic; s->loop_filter = (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1 : 0; s->unrestricted_mv = s->obmc || s->loop_filter || s->umvplus; /* /Fx */ /* These are just to be sure */ avctx->delay = 0; s->low_delay = 1; break; case AV_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 AV_CODEC_ID_RV10: s->out_format = FMT_H263; avctx->delay = 0; s->low_delay = 1; break; case AV_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 = 0; break; case AV_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 AV_CODEC_ID_MSMPEG4V2: s->out_format = FMT_H263; s->h263_pred = 1; s->unrestricted_mv = 1; s->msmpeg4_version = 2; avctx->delay = 0; s->low_delay = 1; break; case AV_CODEC_ID_MSMPEG4V3: s->out_format = FMT_H263; 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 AV_CODEC_ID_WMV1: s->out_format = FMT_H263; 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 AV_CODEC_ID_WMV2: s->out_format = FMT_H263; 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; s->progressive_frame = s->progressive_sequence = !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT | CODEC_FLAG_INTERLACED_ME) || s->alternate_scan); /* init */ if (ff_MPV_common_init(s) < 0) return -1; if (ARCH_X86) ff_MPV_encode_init_x86(s); ff_h263dsp_init(&s->h263dsp); if (!s->dct_quantize) s->dct_quantize = ff_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->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_H263_ENCODER && s->out_format == FMT_H263) ff_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 == AV_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; #if FF_API_ERROR_RATE FF_DISABLE_DEPRECATION_WARNINGS if (avctx->error_rate) s->error_rate = avctx->error_rate; FF_ENABLE_DEPRECATION_WARNINGS; #endif return 0; } av_cold int ff_MPV_encode_end(AVCodecContext *avctx) { MpegEncContext *s = avctx->priv_data; ff_rate_control_uninit(s); ff_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; y < h; y += 16) { for (x = 0; x < w; x += 16) { int offset = x + y * stride; int sad = s->dsp.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, const AVFrame *pic_arg) { Picture *pic = NULL; int64_t pts; int i, display_picture_number = 0, ret; const int encoding_delay = s->max_b_frames ? s->max_b_frames : (s->low_delay ? 0 : 1); int direct = 1; if (pic_arg) { pts = pic_arg->pts; 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; } if (!s->low_delay && display_picture_number == 1) s->dts_delta = time - last; } 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 = display_picture_number; } } } if (pic_arg) { if (!pic_arg->buf[0]); 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_dlog(s->avctx, "%d %d %td %td\n", pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize); if (direct) { i = ff_find_unused_picture(s, 1); if (i < 0) return i; pic = &s->picture[i]; pic->reference = 3; if ((ret = av_frame_ref(&pic->f, pic_arg)) < 0) return ret; if (ff_alloc_picture(s, pic, 1) < 0) { return -1; } } else { i = ff_find_unused_picture(s, 0); if (i < 0) return i; pic = &s->picture[i]; pic->reference = 3; if (ff_alloc_picture(s, pic, 0) < 0) { return -1; } if (pic->f.data[0] + INPLACE_OFFSET == pic_arg->data[0] && pic->f.data[1] + INPLACE_OFFSET == pic_arg->data[1] && pic->f.data[2] + INPLACE_OFFSET == pic_arg->data[2]) { // empty } else { int h_chroma_shift, v_chroma_shift; av_pix_fmt_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->f.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; } } } } } ret = av_frame_copy_props(&pic->f, pic_arg); if (ret < 0) return ret; pic->f.display_picture_number = display_picture_number; pic->f.pts = pts; // we set this here to avoid modifiying pic_arg } /* shift buffer entries */ for (i = 1; i < MAX_PICTURE_COUNT /*s->encoding_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->f.linesize[plane]; const int bw = plane ? 1 : 2; for (y = 0; y < s->mb_height * bw; y++) { for (x = 0; x < s->mb_width * bw; x++) { int off = p->shared ? 0 : 16; uint8_t *dptr = p->f.data[plane] + 8 * (x + y * stride) + off; uint8_t *rptr = ref->f.data[plane] + 8 * (x + y * stride); int v = s->dsp.frame_skip_cmp[1](s, dptr, rptr, 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 encode_frame(AVCodecContext *c, AVFrame *frame) { AVPacket pkt = { 0 }; int ret, got_output; av_init_packet(&pkt); ret = avcodec_encode_video2(c, &pkt, frame, &got_output); if (ret < 0) return ret; ret = pkt.size; av_free_packet(&pkt); return ret; } static int estimate_best_b_count(MpegEncContext *s) { AVCodec *codec = avcodec_find_encoder(s->avctx->codec_id); AVCodecContext *c = avcodec_alloc_context3(NULL); AVFrame input[FF_MAX_B_FRAMES + 2]; const int scale = s->avctx->brd_scale; int i, j, out_size, p_lambda, b_lambda, lambda2; int64_t best_rd = INT64_MAX; int best_b_count = -1; assert(scale >= 0 && scale <= 3); //emms_c(); //s->next_picture_ptr->quality; p_lambda = s->last_lambda_for[AV_PICTURE_TYPE_P]; //p_lambda * FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset; b_lambda = s->last_lambda_for[AV_PICTURE_TYPE_B]; if (!b_lambda) // FIXME we should do this somewhere else b_lambda = p_lambda; lambda2 = (b_lambda * b_lambda + (1 << FF_LAMBDA_SHIFT) / 2) >> 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 = AV_PIX_FMT_YUV420P; c->time_base = s->avctx->time_base; c->max_b_frames = s->max_b_frames; if (avcodec_open2(c, codec, NULL) < 0) return -1; for (i = 0; i < s->max_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.shared && i) { pre_input.f.data[0] += INPLACE_OFFSET; pre_input.f.data[1] += INPLACE_OFFSET; pre_input.f.data[2] += INPLACE_OFFSET; } s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.f.data[0], pre_input.f.linesize[0], c->width, c->height); s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.f.data[1], pre_input.f.linesize[1], c->width >> 1, c->height >> 1); s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.f.data[2], pre_input.f.linesize[2], c->width >> 1, c->height >> 1); } } for (j = 0; j < s->max_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 = AV_PICTURE_TYPE_I; input[0].quality = 1 * FF_QP2LAMBDA; out_size = encode_frame(c, &input[0]); //rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT; for (i = 0; i < s->max_b_frames + 1; i++) { int is_p = i % (j + 1) == j || i == s->max_b_frames; input[i + 1].pict_type = is_p ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B; input[i + 1].quality = is_p ? p_lambda : b_lambda; out_size = encode_frame(c, &input[i + 1]); rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3); } /* get the delayed frames */ while (out_size) { out_size = encode_frame(c, 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; } } avcodec_close(c); av_freep(&c); for (i = 0; i < s->max_b_frames + 2; i++) { av_freep(&input[i].data[0]); } return best_b_count; } static int select_input_picture(MpegEncContext *s) { int i, ret; for (i = 1; i < MAX_PICTURE_COUNT; i++) s->reordered_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]->f.pict_type = AV_PICTURE_TYPE_I; s->reordered_input_picture[0]->f.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_frame_unref(&s->input_picture[0]->f); emms_c(); ff_vbv_update(s, 0); goto no_output_pic; } } if (s->flags & CODEC_FLAG_PASS2) { for (i = 0; i < s->max_b_frames + 1; i++) { int pict_num = s->input_picture[0]->f.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 = AV_PICTURE_TYPE_P; break; } s->input_picture[i]->f.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; i < s->max_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 ]->f.data[0], s->input_picture[i - 1]->f.data[0], s->linesize) + 1; } } for (i = 0; i < s->max_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; i < b_frames + 1; i++) { s->input_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(); for (i = b_frames - 1; i >= 0; i--) { int type = s->input_picture[i]->f.pict_type; if (type && type != AV_PICTURE_TYPE_B) b_frames = i; } if (s->input_picture[b_frames]->f.pict_type == AV_PICTURE_TYPE_B && 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->mpv_flags & FF_MPV_FLAG_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]->f.pict_type = AV_PICTURE_TYPE_I; } } if ((s->flags & CODEC_FLAG_CLOSED_GOP) && b_frames && s->input_picture[b_frames]->f.pict_type == AV_PICTURE_TYPE_I) b_frames--; s->reordered_input_picture[0] = s->input_picture[b_frames]; if (s->reordered_input_picture[0]->f.pict_type != AV_PICTURE_TYPE_I) s->reordered_input_picture[0]->f.pict_type = AV_PICTURE_TYPE_P; s->reordered_input_picture[0]->f.coded_picture_number = s->coded_picture_number++; for (i = 0; i < b_frames; i++) { s->reordered_input_picture[i + 1] = s->input_picture[i]; s->reordered_input_picture[i + 1]->f.pict_type = AV_PICTURE_TYPE_B; s->reordered_input_picture[i + 1]->f.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]->f.pict_type != AV_PICTURE_TYPE_B ? 3 : 0; ff_mpeg_unref_picture(s, &s->new_picture); if ((ret = ff_mpeg_ref_picture(s, &s->new_picture, s->reordered_input_picture[0]))) return ret; if (s->reordered_input_picture[0]->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 Picture *pic; int i = ff_find_unused_picture(s, 0); if (i < 0) return i; pic = &s->picture[i]; pic->reference = s->reordered_input_picture[0]->reference; if (ff_alloc_picture(s, pic, 0) < 0) { return -1; } ret = av_frame_copy_props(&pic->f, &s->reordered_input_picture[0]->f); if (ret < 0) return ret; /* mark us unused / free shared pic */ av_frame_unref(&s->reordered_input_picture[0]->f); s->reordered_input_picture[0]->shared = 0; s->current_picture_ptr = pic; } else { // input is not a shared pix -> reuse buffer for current_pix s->current_picture_ptr = s->reordered_input_picture[0]; for (i = 0; i < 4; i++) { s->new_picture.f.data[i] += INPLACE_OFFSET; } } ff_mpeg_unref_picture(s, &s->current_picture); if ((ret = ff_mpeg_ref_picture(s, &s->current_picture, s->current_picture_ptr)) < 0) return ret; s->picture_number = s->new_picture.f.display_picture_number; } else { ff_mpeg_unref_picture(s, &s->new_picture); } return 0; } int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic_arg, int *got_packet) { MpegEncContext *s = avctx->priv_data; int i, stuffing_count, ret; int context_count = s->slice_context_count; s->picture_in_gop_number++; if (load_input_picture(s, pic_arg) < 0) return -1; if (select_input_picture(s) < 0) { return -1; } /* output? */ if (s->new_picture.f.data[0]) { if (!pkt->data && (ret = ff_alloc_packet(pkt, s->mb_width*s->mb_height*MAX_MB_BYTES)) < 0) return ret; if (s->mb_info) { s->mb_info_ptr = av_packet_new_side_data(pkt, AV_PKT_DATA_H263_MB_INFO, s->mb_width*s->mb_height*12); s->prev_mb_info = s->last_mb_info = s->mb_info_size = 0; } for (i = 0; i < context_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 = pkt->data + (size_t)(((int64_t) pkt->size) * start_y / h); uint8_t *end = pkt->data + (size_t)(((int64_t) pkt->size) * end_y / h); init_put_bits(&s->thread_context[i]->pb, start, end - start); } s->pict_type = s->new_picture.f.pict_type; //emms_c(); ff_MPV_frame_start(s, avctx); vbv_retry: if (encode_picture(s, s->picture_number) < 0) return -1; 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; // FIXME f/b_count in avctx avctx->p_count = s->mb_num - s->i_count - s->skip_count; avctx->skip_count = s->skip_count; ff_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; i < s->mb_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() // done in encode_picture() so we must undo it if (s->pict_type == AV_PICTURE_TYPE_P) { if (s->flipflop_rounding || s->codec_id == AV_CODEC_ID_H263P || s->codec_id == AV_CODEC_ID_MPEG4) s->no_rounding ^= 1; } if (s->pict_type != AV_PICTURE_TYPE_B) { s->time_base = s->last_time_base; s->last_non_b_time = s->time - s->pp_time; } for (i = 0; i < context_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->f.error[i] = s->current_picture.f.error[i]; avctx->error[i] += s->current_picture_ptr->f.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 AV_CODEC_ID_MPEG1VIDEO: case AV_CODEC_ID_MPEG2VIDEO: while (stuffing_count--) { put_bits(&s->pb, 8, 0); } break; case AV_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, min_delay; double inbits = s->avctx->rc_max_rate * av_q2d(s->avctx->time_base); int minbits = s->frame_bits - 8 * (s->vbv_delay_ptr - s->pb.buf - 1); double bits = s->rc_context.buffer_index + minbits - inbits; if (bits < 0) av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n"); assert(s->repeat_first_field == 0); vbv_delay = bits * 90000 / s->avctx->rc_max_rate; min_delay = (minbits * 90000LL + s->avctx->rc_max_rate - 1) / s->avctx->rc_max_rate; vbv_delay = FFMAX(vbv_delay, min_delay); 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; avctx->vbv_delay = vbv_delay * 300; } s->total_bits += s->frame_bits; avctx->frame_bits = s->frame_bits; pkt->pts = s->current_picture.f.pts; if (!s->low_delay) { if (!s->current_picture.f.coded_picture_number) pkt->dts = pkt->pts - s->dts_delta; else pkt->dts = s->reordered_pts; s->reordered_pts = s->input_picture[0]->f.pts; } else pkt->dts = pkt->pts; if (s->current_picture.f.key_frame) pkt->flags |= AV_PKT_FLAG_KEY; if (s->mb_info) av_packet_shrink_side_data(pkt, AV_PKT_DATA_H263_MB_INFO, s->mb_info_size); } else { s->frame_bits = 0; } assert((s->frame_bits & 7) == 0); pkt->size = s->frame_bits / 8; *got_packet = !!pkt->size; return 0; } 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; int16_t *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, int16_t *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 (level < minlevel) { level = minlevel; overflow++; } block[j] = level; } if (overflow && s->avctx->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]; int16_t 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; ptrdiff_t wrap_y, wrap_c; for (i = 0; i < mb_block_count; i++) skip_dct[i] = s->skipdct; 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->mpv_flags & FF_MPV_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 == AV_CODEC_ID_MPEG4) { if (!s->mb_intra) { if (s->pict_type == AV_PICTURE_TYPE_B) { 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->mpv_flags & FF_MPV_FLAG_QP_RD) ff_set_qscale(s, s->qscale + s->dquant); wrap_y = s->linesize; wrap_c = s->uvlinesize; ptr_y = s->new_picture.f.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16; ptr_cb = s->new_picture.f.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8; ptr_cr = s->new_picture.f.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; s->vdsp.emulated_edge_mc(ebuf, ptr_y, wrap_y, 16, 16, mb_x * 16, mb_y * 16, s->width, s->height); ptr_y = ebuf; s->vdsp.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; s->vdsp.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 == AV_PICTURE_TYPE_B) { op_pix = s->hdsp.put_pixels_tab; op_qpix = s->dsp.put_qpel_pixels_tab; } else { op_pix = s->hdsp.put_no_rnd_pixels_tab; op_qpix = s->dsp.put_no_rnd_qpel_pixels_tab; } if (s->mv_dir & MV_DIR_FORWARD) { ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix); op_pix = s->hdsp.avg_pixels_tab; op_qpix = s->dsp.avg_qpel_pixels_tab; } if (s->mv_dir & MV_DIR_BACKWARD) { ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.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->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(int16_t) * 64 * mb_block_count); } /* DCT & quantize */ assert(s->out_format != FMT_MJPEG || s->qscale == 8); { for (i = 0; i < mb_block_count; i++) { if (!skip_dct[i]) { int overflow; s->block_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->quantizer_noise_shaping) { for (i = 0; i < mb_block_count; i++) { if (!skip_dct[i]) { s->block_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; i < mb_block_count; i++) dct_single_coeff_elimination(s, i, s->chroma_elim_threshold); if (s->mpv_flags & FF_MPV_FLAG_CBP_RD) { for (i = 0; i < mb_block_count; i++) { if (s->block_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 != ff_dct_quantize_c) { for (i = 0; i < mb_block_count; i++) { int j; if (s->block_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 AV_CODEC_ID_MPEG1VIDEO: case AV_CODEC_ID_MPEG2VIDEO: if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) ff_mpeg1_encode_mb(s, s->block, motion_x, motion_y); break; case AV_CODEC_ID_MPEG4: if (CONFIG_MPEG4_ENCODER) ff_mpeg4_encode_mb(s, s->block, motion_x, motion_y); break; case AV_CODEC_ID_MSMPEG4V2: case AV_CODEC_ID_MSMPEG4V3: case AV_CODEC_ID_WMV1: if (CONFIG_MSMPEG4_ENCODER) ff_msmpeg4_encode_mb(s, s->block, motion_x, motion_y); break; case AV_CODEC_ID_WMV2: if (CONFIG_WMV2_ENCODER) ff_wmv2_encode_mb(s, s->block, motion_x, motion_y); break; case AV_CODEC_ID_H261: if (CONFIG_H261_ENCODER) ff_h261_encode_mb(s, s->block, motion_x, motion_y); break; case AV_CODEC_ID_H263: case AV_CODEC_ID_H263P: case AV_CODEC_ID_FLV1: case AV_CODEC_ID_RV10: case AV_CODEC_ID_RV20: if (CONFIG_H263_ENCODER) ff_h263_encode_mb(s, s->block, motion_x, motion_y); break; case AV_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 than 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 than 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){ ff_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.f.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.f.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.f.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.f.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.f.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.f.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.f.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize) +sse(s, s->new_picture.f.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.f.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==AV_PICTURE_TYPE_B) 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.f.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==AV_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); } avpriv_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 void write_mb_info(MpegEncContext *s) { uint8_t *ptr = s->mb_info_ptr + s->mb_info_size - 12; int offset = put_bits_count(&s->pb); int mba = s->mb_x + s->mb_width * (s->mb_y % s->gob_index); int gobn = s->mb_y / s->gob_index; int pred_x, pred_y; if (CONFIG_H263_ENCODER) ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y); bytestream_put_le32(&ptr, offset); bytestream_put_byte(&ptr, s->qscale); bytestream_put_byte(&ptr, gobn); bytestream_put_le16(&ptr, mba); bytestream_put_byte(&ptr, pred_x); /* hmv1 */ bytestream_put_byte(&ptr, pred_y); /* vmv1 */ /* 4MV not implemented */ bytestream_put_byte(&ptr, 0); /* hmv2 */ bytestream_put_byte(&ptr, 0); /* vmv2 */ } static void update_mb_info(MpegEncContext *s, int startcode) { if (!s->mb_info) return; if (put_bits_count(&s->pb) - s->prev_mb_info*8 >= s->mb_info*8) { s->mb_info_size += 12; s->prev_mb_info = s->last_mb_info; } if (startcode) { s->prev_mb_info = put_bits_count(&s->pb)/8; /* This might have incremented mb_info_size above, and we return without * actually writing any info into that slot yet. But in that case, * this will be called again at the start of the after writing the * start code, actually writing the mb info. */ return; } s->last_mb_info = put_bits_count(&s->pb)/8; if (!s->mb_info_size) s->mb_info_size += 12; write_mb_info(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]; 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.f.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 AV_CODEC_ID_H263: case AV_CODEC_ID_H263P: case AV_CODEC_ID_FLV1: if (CONFIG_H263_ENCODER) s->gob_index = ff_h263_get_gob_height(s); break; case AV_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++) { 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 == AV_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 AV_CODEC_ID_H263: case AV_CODEC_ID_H263P: if(!s->h263_slice_structured) if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0; break; case AV_CODEC_ID_MPEG2VIDEO: if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1; case AV_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==AV_CODEC_ID_MPEG4 && s->partitioned_frame){ ff_mpeg4_init_partitions(s); } } assert((put_bits_count(&s->pb)&7) == 0); current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob; if (s->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->error_rate; if(r % d == 0){ current_packet_size=0; s->pb.buf_ptr= s->ptr_lastgob; assert(put_bits_ptr(&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); } update_mb_info(s, 1); switch(s->codec_id){ case AV_CODEC_ID_MPEG4: if (CONFIG_MPEG4_ENCODER) { ff_mpeg4_encode_video_packet_header(s); ff_mpeg4_clean_buffers(s); } break; case AV_CODEC_ID_MPEG1VIDEO: case AV_CODEC_ID_MPEG2VIDEO: if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) { ff_mpeg1_encode_slice_header(s); ff_mpeg1_clean_buffers(s); } break; case AV_CODEC_ID_H263: case AV_CODEC_ID_H263P: if (CONFIG_H263_ENCODER) ff_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 update_mb_info(s, 0); if (mb_type & (mb_type-1) || (s->mpv_flags & FF_MPV_FLAG_QP_RD)) { // more than 1 MB type possible or FF_MPV_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->mpv_flags & FF_MPV_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]; int16_t 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 == AV_PICTURE_TYPE_B ? 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(int16_t)*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(int16_t)*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->mpv_flags & FF_MPV_FLAG_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); avpriv_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); avpriv_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); avpriv_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_H263_ENCODER && s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B) ff_h263_update_motion_val(s); if(next_block==0){ //FIXME 16 vs linesize16 s->hdsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16); s->hdsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8); s->hdsp.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) ff_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]; 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_H263_ENCODER && s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B) ff_h263_update_motion_val(s); ff_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.f.error[0] += sse( s, s->new_picture.f.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize); s->current_picture.f.error[1] += sse( s, s->new_picture.f.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.f.error[2] += sse( s, s->new_picture.f.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_H263_ENCODER && s->out_format == FMT_H263) ff_h263_loop_filter(s); } av_dlog(s->avctx, "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 == AV_PICTURE_TYPE_I) ff_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 = put_bits_ptr(&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(er.error_count); MERGE(padding_bug_score); MERGE(current_picture.f.error[0]); MERGE(current_picture.f.error[1]); MERGE(current_picture.f.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); avpriv_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->f.quality = s->current_picture.f.quality = s->next_lambda; if(!dry_run) s->next_lambda= 0; } else if (!s->fixed_qscale) { s->current_picture_ptr->f.quality = s->current_picture.f.quality = ff_rate_estimate_qscale(s, dry_run); if (s->current_picture.f.quality < 0) return -1; } if(s->adaptive_quant){ switch(s->codec_id){ case AV_CODEC_ID_MPEG4: if (CONFIG_MPEG4_ENCODER) ff_clean_mpeg4_qscales(s); break; case AV_CODEC_ID_H263: case AV_CODEC_ID_H263P: case AV_CODEC_ID_FLV1: if (CONFIG_H263_ENCODER) ff_clean_h263_qscales(s); break; default: ff_init_qscale_tab(s); } s->lambda= s->lambda_table[0]; //FIXME broken }else s->lambda = s->current_picture.f.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->f.pts != AV_NOPTS_VALUE); s->time = s->current_picture_ptr->f.pts * s->avctx->time_base.num; if(s->pict_type==AV_PICTURE_TYPE_B){ 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, ret; int bits; int context_count = s->slice_context_count; 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 == AV_CODEC_ID_MPEG1VIDEO || s->codec_id == AV_CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->msmpeg4_version)) set_frame_distances(s); if(CONFIG_MPEG4_ENCODER && s->codec_id == AV_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==AV_PICTURE_TYPE_I){ if(s->msmpeg4_version >= 3) s->no_rounding=1; else s->no_rounding=0; }else if(s->pict_type!=AV_PICTURE_TYPE_B){ if(s->flipflop_rounding || s->codec_id == AV_CODEC_ID_H263P || s->codec_id == AV_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==AV_PICTURE_TYPE_B) 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; ithread_context[i], s); if (ret < 0) return ret; } if(ff_init_me(s)<0) return -1; /* Estimate motion for every MB */ if(s->pict_type != AV_PICTURE_TYPE_I){ 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 != AV_PICTURE_TYPE_B) { if((s->avctx->pre_me && s->last_non_b_pict_type==AV_PICTURE_TYPE_I) || s->avctx->pre_me==2){ s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); } } s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); }else /* if(s->pict_type == AV_PICTURE_TYPE_I) */{ /* 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, &s->thread_context[0], NULL, context_count, sizeof(void*)); } } for(i=1; ithread_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 == AV_PICTURE_TYPE_P){ s->pict_type= AV_PICTURE_TYPE_I; for(i=0; imb_stride*s->mb_height; i++) s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA; av_dlog(s, "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==AV_PICTURE_TYPE_P || s->pict_type==AV_PICTURE_TYPE_S) { 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==AV_PICTURE_TYPE_B){ 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==AV_PICTURE_TYPE_I && !(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 */ 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); } s->y_dc_scale_table= s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision]; s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8]; 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->f.key_frame = s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I; //FIXME pic_ptr s->current_picture_ptr->f.pict_type = s->current_picture.f.pict_type = s->pict_type; if (s->current_picture.f.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 == AV_CODEC_ID_WMV2) ff_wmv2_encode_picture_header(s, picture_number); else if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version) ff_msmpeg4_encode_picture_header(s, picture_number); else if (CONFIG_MPEG4_ENCODER && s->h263_pred) ff_mpeg4_encode_picture_header(s, picture_number); else if (CONFIG_RV10_ENCODER && s->codec_id == AV_CODEC_ID_RV10) ff_rv10_encode_picture_header(s, picture_number); else if (CONFIG_RV20_ENCODER && s->codec_id == AV_CODEC_ID_RV20) ff_rv20_encode_picture_header(s, picture_number); else if (CONFIG_FLV_ENCODER && s->codec_id == AV_CODEC_ID_FLV1) ff_flv_encode_picture_header(s, picture_number); else if (CONFIG_H263_ENCODER) ff_h263_encode_picture_header(s, picture_number); break; case FMT_MPEG1: if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) ff_mpeg1_encode_picture_header(s, picture_number); break; default: assert(0); } bits= put_bits_count(&s->pb); s->header_bits= bits - s->last_bits; for(i=1; ithread_context[i], s); } s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, context_count, sizeof(void*)); for(i=1; ithread_context[i]); } emms_c(); return 0; } static void denoise_dct_c(MpegEncContext *s, int16_t *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; } } } static int dct_quantize_trellis_c(MpegEncContext *s, int16_t *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(int16_t)); 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 == ff_fdct_ifast) 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(int16_t)); 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; // 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; 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->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(scorequantizer_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->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 ff_dct_quantize_c(MpegEncContext *s, int16_t *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; } #define OFFSET(x) offsetof(MpegEncContext, x) #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM static const AVOption h263_options[] = { { "obmc", "use overlapped block motion compensation.", OFFSET(obmc), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, { "structured_slices","Write slice start position at every GOB header instead of just GOB number.", OFFSET(h263_slice_structured), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE}, { "mb_info", "emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size", OFFSET(mb_info), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, FF_MPV_COMMON_OPTS { NULL }, }; static const AVClass h263_class = { .class_name = "H.263 encoder", .item_name = av_default_item_name, .option = h263_options, .version = LIBAVUTIL_VERSION_INT, }; AVCodec ff_h263_encoder = { .name = "h263", .long_name = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_H263, .priv_data_size = sizeof(MpegEncContext), .init = ff_MPV_encode_init, .encode2 = ff_MPV_encode_picture, .close = ff_MPV_encode_end, .pix_fmts= (const enum AVPixelFormat[]){AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE}, .priv_class = &h263_class, }; static const AVOption h263p_options[] = { { "umv", "Use unlimited motion vectors.", OFFSET(umvplus), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, { "aiv", "Use alternative inter VLC.", OFFSET(alt_inter_vlc), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, { "obmc", "use overlapped block motion compensation.", OFFSET(obmc), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, { "structured_slices", "Write slice start position at every GOB header instead of just GOB number.", OFFSET(h263_slice_structured), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE}, FF_MPV_COMMON_OPTS { NULL }, }; static const AVClass h263p_class = { .class_name = "H.263p encoder", .item_name = av_default_item_name, .option = h263p_options, .version = LIBAVUTIL_VERSION_INT, }; AVCodec ff_h263p_encoder = { .name = "h263p", .long_name = NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_H263P, .priv_data_size = sizeof(MpegEncContext), .init = ff_MPV_encode_init, .encode2 = ff_MPV_encode_picture, .close = ff_MPV_encode_end, .capabilities = CODEC_CAP_SLICE_THREADS, .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, .priv_class = &h263p_class, }; FF_MPV_GENERIC_CLASS(msmpeg4v2) AVCodec ff_msmpeg4v2_encoder = { .name = "msmpeg4v2", .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_MSMPEG4V2, .priv_data_size = sizeof(MpegEncContext), .init = ff_MPV_encode_init, .encode2 = ff_MPV_encode_picture, .close = ff_MPV_encode_end, .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, .priv_class = &msmpeg4v2_class, }; FF_MPV_GENERIC_CLASS(msmpeg4v3) AVCodec ff_msmpeg4v3_encoder = { .name = "msmpeg4", .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_MSMPEG4V3, .priv_data_size = sizeof(MpegEncContext), .init = ff_MPV_encode_init, .encode2 = ff_MPV_encode_picture, .close = ff_MPV_encode_end, .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, .priv_class = &msmpeg4v3_class, }; FF_MPV_GENERIC_CLASS(wmv1) AVCodec ff_wmv1_encoder = { .name = "wmv1", .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 7"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_WMV1, .priv_data_size = sizeof(MpegEncContext), .init = ff_MPV_encode_init, .encode2 = ff_MPV_encode_picture, .close = ff_MPV_encode_end, .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, .priv_class = &wmv1_class, };