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716 lines
28 KiB
716 lines
28 KiB
/* |
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* H.264 encoding using the x264 library |
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* Copyright (C) 2005 Mans Rullgard <mans@mansr.com> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/internal.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/mem.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/stereo3d.h" |
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#include "avcodec.h" |
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#include "internal.h" |
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#if defined(_MSC_VER) |
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#define X264_API_IMPORTS 1 |
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#endif |
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#include <x264.h> |
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#include <float.h> |
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#include <math.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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typedef struct X264Context { |
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AVClass *class; |
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x264_param_t params; |
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x264_t *enc; |
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x264_picture_t pic; |
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uint8_t *sei; |
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int sei_size; |
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char *preset; |
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char *tune; |
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char *profile; |
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int fastfirstpass; |
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float crf; |
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float crf_max; |
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int cqp; |
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int aq_mode; |
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float aq_strength; |
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char *psy_rd; |
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int psy; |
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int rc_lookahead; |
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int weightp; |
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int weightb; |
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int ssim; |
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int intra_refresh; |
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int bluray_compat; |
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int b_bias; |
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int b_pyramid; |
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int mixed_refs; |
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int dct8x8; |
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int fast_pskip; |
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int aud; |
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int mbtree; |
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char *deblock; |
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float cplxblur; |
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char *partitions; |
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int direct_pred; |
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int slice_max_size; |
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char *stats; |
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int nal_hrd; |
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char *x264_params; |
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} X264Context; |
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static void X264_log(void *p, int level, const char *fmt, va_list args) |
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{ |
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static const int level_map[] = { |
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[X264_LOG_ERROR] = AV_LOG_ERROR, |
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[X264_LOG_WARNING] = AV_LOG_WARNING, |
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[X264_LOG_INFO] = AV_LOG_INFO, |
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[X264_LOG_DEBUG] = AV_LOG_DEBUG |
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}; |
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if (level < 0 || level > X264_LOG_DEBUG) |
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return; |
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av_vlog(p, level_map[level], fmt, args); |
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} |
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static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, |
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x264_nal_t *nals, int nnal) |
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{ |
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X264Context *x4 = ctx->priv_data; |
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uint8_t *p; |
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int i, size = x4->sei_size, ret; |
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if (!nnal) |
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return 0; |
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for (i = 0; i < nnal; i++) |
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size += nals[i].i_payload; |
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if ((ret = ff_alloc_packet(pkt, size)) < 0) |
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return ret; |
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p = pkt->data; |
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/* Write the SEI as part of the first frame. */ |
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if (x4->sei_size > 0 && nnal > 0) { |
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memcpy(p, x4->sei, x4->sei_size); |
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p += x4->sei_size; |
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x4->sei_size = 0; |
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} |
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for (i = 0; i < nnal; i++){ |
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memcpy(p, nals[i].p_payload, nals[i].i_payload); |
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p += nals[i].i_payload; |
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} |
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return 1; |
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} |
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static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame) |
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{ |
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X264Context *x4 = ctx->priv_data; |
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AVFrameSideData *side_data; |
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if (x4->params.b_tff != frame->top_field_first) { |
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x4->params.b_tff = frame->top_field_first; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den || |
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x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) { |
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x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den; |
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x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 || |
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x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) { |
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x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000; |
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x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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if (x4->params.rc.i_rc_method == X264_RC_ABR && |
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x4->params.rc.i_bitrate != ctx->bit_rate / 1000) { |
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x4->params.rc.i_bitrate = ctx->bit_rate / 1000; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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if (x4->crf >= 0 && |
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x4->params.rc.i_rc_method == X264_RC_CRF && |
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x4->params.rc.f_rf_constant != x4->crf) { |
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x4->params.rc.f_rf_constant = x4->crf; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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if (x4->params.rc.i_rc_method == X264_RC_CQP && |
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x4->params.rc.i_qp_constant != x4->cqp) { |
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x4->params.rc.i_qp_constant = x4->cqp; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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if (x4->crf_max >= 0 && |
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x4->params.rc.f_rf_constant_max != x4->crf_max) { |
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x4->params.rc.f_rf_constant_max = x4->crf_max; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_STEREO3D); |
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if (side_data) { |
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AVStereo3D *stereo = (AVStereo3D *)side_data->data; |
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int fpa_type; |
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switch (stereo->type) { |
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case AV_STEREO3D_CHECKERBOARD: |
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fpa_type = 0; |
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break; |
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case AV_STEREO3D_COLUMNS: |
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fpa_type = 1; |
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break; |
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case AV_STEREO3D_LINES: |
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fpa_type = 2; |
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break; |
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case AV_STEREO3D_SIDEBYSIDE: |
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fpa_type = 3; |
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break; |
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case AV_STEREO3D_TOPBOTTOM: |
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fpa_type = 4; |
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break; |
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case AV_STEREO3D_FRAMESEQUENCE: |
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fpa_type = 5; |
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break; |
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default: |
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fpa_type = -1; |
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break; |
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} |
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if (fpa_type != x4->params.i_frame_packing) { |
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x4->params.i_frame_packing = fpa_type; |
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x264_encoder_reconfig(x4->enc, &x4->params); |
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} |
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} |
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} |
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static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, |
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int *got_packet) |
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{ |
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X264Context *x4 = ctx->priv_data; |
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x264_nal_t *nal; |
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int nnal, i, ret; |
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x264_picture_t pic_out; |
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x264_picture_init( &x4->pic ); |
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x4->pic.img.i_csp = x4->params.i_csp; |
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if (x264_bit_depth > 8) |
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x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH; |
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x4->pic.img.i_plane = 3; |
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if (frame) { |
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for (i = 0; i < 3; i++) { |
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x4->pic.img.plane[i] = frame->data[i]; |
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x4->pic.img.i_stride[i] = frame->linesize[i]; |
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} |
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x4->pic.i_pts = frame->pts; |
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x4->pic.i_type = |
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frame->pict_type == AV_PICTURE_TYPE_I ? X264_TYPE_KEYFRAME : |
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frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P : |
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frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B : |
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X264_TYPE_AUTO; |
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reconfig_encoder(ctx, frame); |
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} |
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do { |
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if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0) |
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return AVERROR_UNKNOWN; |
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ret = encode_nals(ctx, pkt, nal, nnal); |
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if (ret < 0) |
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return ret; |
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} while (!ret && !frame && x264_encoder_delayed_frames(x4->enc)); |
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pkt->pts = pic_out.i_pts; |
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pkt->dts = pic_out.i_dts; |
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switch (pic_out.i_type) { |
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case X264_TYPE_IDR: |
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case X264_TYPE_I: |
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ctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
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break; |
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case X264_TYPE_P: |
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ctx->coded_frame->pict_type = AV_PICTURE_TYPE_P; |
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break; |
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case X264_TYPE_B: |
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case X264_TYPE_BREF: |
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ctx->coded_frame->pict_type = AV_PICTURE_TYPE_B; |
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break; |
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} |
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pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe; |
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if (ret) |
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ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA; |
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*got_packet = ret; |
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return 0; |
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} |
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static av_cold int X264_close(AVCodecContext *avctx) |
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{ |
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X264Context *x4 = avctx->priv_data; |
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av_freep(&avctx->extradata); |
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av_freep(&x4->sei); |
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if (x4->enc) { |
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x264_encoder_close(x4->enc); |
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x4->enc = NULL; |
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} |
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av_frame_free(&avctx->coded_frame); |
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return 0; |
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} |
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static int convert_pix_fmt(enum AVPixelFormat pix_fmt) |
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{ |
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switch (pix_fmt) { |
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case AV_PIX_FMT_YUV420P: |
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case AV_PIX_FMT_YUVJ420P: |
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case AV_PIX_FMT_YUV420P9: |
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case AV_PIX_FMT_YUV420P10: return X264_CSP_I420; |
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case AV_PIX_FMT_YUV422P: |
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case AV_PIX_FMT_YUVJ422P: |
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case AV_PIX_FMT_YUV422P10: return X264_CSP_I422; |
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case AV_PIX_FMT_YUV444P: |
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case AV_PIX_FMT_YUVJ444P: |
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case AV_PIX_FMT_YUV444P9: |
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case AV_PIX_FMT_YUV444P10: return X264_CSP_I444; |
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case AV_PIX_FMT_NV12: return X264_CSP_NV12; |
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case AV_PIX_FMT_NV16: |
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case AV_PIX_FMT_NV20: return X264_CSP_NV16; |
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}; |
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return 0; |
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} |
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#define PARSE_X264_OPT(name, var)\ |
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if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\ |
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av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\ |
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return AVERROR(EINVAL);\ |
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} |
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static av_cold int X264_init(AVCodecContext *avctx) |
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{ |
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X264Context *x4 = avctx->priv_data; |
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x264_param_default(&x4->params); |
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x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER; |
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if (x4->preset || x4->tune) |
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if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) { |
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av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune); |
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return AVERROR(EINVAL); |
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} |
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if (avctx->level > 0) |
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x4->params.i_level_idc = avctx->level; |
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x4->params.pf_log = X264_log; |
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x4->params.p_log_private = avctx; |
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x4->params.i_log_level = X264_LOG_DEBUG; |
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x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt); |
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if (avctx->bit_rate) { |
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x4->params.rc.i_bitrate = avctx->bit_rate / 1000; |
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x4->params.rc.i_rc_method = X264_RC_ABR; |
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} |
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x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000; |
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x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000; |
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x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1; |
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if (avctx->flags & CODEC_FLAG_PASS2) { |
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x4->params.rc.b_stat_read = 1; |
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} else { |
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if (x4->crf >= 0) { |
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x4->params.rc.i_rc_method = X264_RC_CRF; |
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x4->params.rc.f_rf_constant = x4->crf; |
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} else if (x4->cqp >= 0) { |
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x4->params.rc.i_rc_method = X264_RC_CQP; |
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x4->params.rc.i_qp_constant = x4->cqp; |
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} |
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if (x4->crf_max >= 0) |
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x4->params.rc.f_rf_constant_max = x4->crf_max; |
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} |
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if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 && |
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(avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) { |
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x4->params.rc.f_vbv_buffer_init = |
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(float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size; |
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} |
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if (avctx->i_quant_factor > 0) |
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x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor); |
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x4->params.rc.f_pb_factor = avctx->b_quant_factor; |
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x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset; |
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if (avctx->me_method == ME_EPZS) |
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x4->params.analyse.i_me_method = X264_ME_DIA; |
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else if (avctx->me_method == ME_HEX) |
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x4->params.analyse.i_me_method = X264_ME_HEX; |
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else if (avctx->me_method == ME_UMH) |
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x4->params.analyse.i_me_method = X264_ME_UMH; |
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else if (avctx->me_method == ME_FULL) |
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x4->params.analyse.i_me_method = X264_ME_ESA; |
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else if (avctx->me_method == ME_TESA) |
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x4->params.analyse.i_me_method = X264_ME_TESA; |
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if (avctx->gop_size >= 0) |
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x4->params.i_keyint_max = avctx->gop_size; |
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if (avctx->max_b_frames >= 0) |
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x4->params.i_bframe = avctx->max_b_frames; |
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if (avctx->scenechange_threshold >= 0) |
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x4->params.i_scenecut_threshold = avctx->scenechange_threshold; |
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if (avctx->qmin >= 0) |
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x4->params.rc.i_qp_min = avctx->qmin; |
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if (avctx->qmax >= 0) |
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x4->params.rc.i_qp_max = avctx->qmax; |
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if (avctx->max_qdiff >= 0) |
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x4->params.rc.i_qp_step = avctx->max_qdiff; |
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if (avctx->qblur >= 0) |
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x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */ |
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if (avctx->qcompress >= 0) |
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x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */ |
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if (avctx->refs >= 0) |
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x4->params.i_frame_reference = avctx->refs; |
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if (avctx->trellis >= 0) |
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x4->params.analyse.i_trellis = avctx->trellis; |
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if (avctx->me_range >= 0) |
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x4->params.analyse.i_me_range = avctx->me_range; |
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if (avctx->noise_reduction >= 0) |
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x4->params.analyse.i_noise_reduction = avctx->noise_reduction; |
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if (avctx->me_subpel_quality >= 0) |
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x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality; |
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if (avctx->b_frame_strategy >= 0) |
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x4->params.i_bframe_adaptive = avctx->b_frame_strategy; |
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if (avctx->keyint_min >= 0) |
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x4->params.i_keyint_min = avctx->keyint_min; |
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if (avctx->coder_type >= 0) |
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x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC; |
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if (avctx->me_cmp >= 0) |
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x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA; |
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|
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if (x4->aq_mode >= 0) |
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x4->params.rc.i_aq_mode = x4->aq_mode; |
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if (x4->aq_strength >= 0) |
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x4->params.rc.f_aq_strength = x4->aq_strength; |
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PARSE_X264_OPT("psy-rd", psy_rd); |
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PARSE_X264_OPT("deblock", deblock); |
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PARSE_X264_OPT("partitions", partitions); |
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PARSE_X264_OPT("stats", stats); |
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if (x4->psy >= 0) |
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x4->params.analyse.b_psy = x4->psy; |
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if (x4->rc_lookahead >= 0) |
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x4->params.rc.i_lookahead = x4->rc_lookahead; |
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if (x4->weightp >= 0) |
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x4->params.analyse.i_weighted_pred = x4->weightp; |
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if (x4->weightb >= 0) |
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x4->params.analyse.b_weighted_bipred = x4->weightb; |
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if (x4->cplxblur >= 0) |
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x4->params.rc.f_complexity_blur = x4->cplxblur; |
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|
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if (x4->ssim >= 0) |
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x4->params.analyse.b_ssim = x4->ssim; |
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if (x4->intra_refresh >= 0) |
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x4->params.b_intra_refresh = x4->intra_refresh; |
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if (x4->bluray_compat >= 0) { |
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x4->params.b_bluray_compat = x4->bluray_compat; |
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x4->params.b_vfr_input = 0; |
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} |
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if (x4->b_bias != INT_MIN) |
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x4->params.i_bframe_bias = x4->b_bias; |
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if (x4->b_pyramid >= 0) |
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x4->params.i_bframe_pyramid = x4->b_pyramid; |
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if (x4->mixed_refs >= 0) |
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x4->params.analyse.b_mixed_references = x4->mixed_refs; |
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if (x4->dct8x8 >= 0) |
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x4->params.analyse.b_transform_8x8 = x4->dct8x8; |
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if (x4->fast_pskip >= 0) |
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x4->params.analyse.b_fast_pskip = x4->fast_pskip; |
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if (x4->aud >= 0) |
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x4->params.b_aud = x4->aud; |
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if (x4->mbtree >= 0) |
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x4->params.rc.b_mb_tree = x4->mbtree; |
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if (x4->direct_pred >= 0) |
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x4->params.analyse.i_direct_mv_pred = x4->direct_pred; |
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|
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if (x4->slice_max_size >= 0) |
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x4->params.i_slice_max_size = x4->slice_max_size; |
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|
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if (x4->fastfirstpass) |
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x264_param_apply_fastfirstpass(&x4->params); |
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|
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if (x4->nal_hrd >= 0) |
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x4->params.i_nal_hrd = x4->nal_hrd; |
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|
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if (x4->profile) |
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if (x264_param_apply_profile(&x4->params, x4->profile) < 0) { |
|
av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
x4->params.i_width = avctx->width; |
|
x4->params.i_height = avctx->height; |
|
x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num; |
|
x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den; |
|
x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den; |
|
x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num; |
|
|
|
x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR; |
|
|
|
x4->params.i_threads = avctx->thread_count; |
|
if (avctx->thread_type) |
|
x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE; |
|
|
|
x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT; |
|
|
|
x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP); |
|
|
|
x4->params.i_slice_count = avctx->slices; |
|
|
|
x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P || |
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ422P || |
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ444P || |
|
avctx->color_range == AVCOL_RANGE_JPEG; |
|
|
|
// x264 validates the values internally |
|
x4->params.vui.i_colorprim = avctx->color_primaries; |
|
x4->params.vui.i_transfer = avctx->color_trc; |
|
x4->params.vui.i_colmatrix = avctx->colorspace; |
|
|
|
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) |
|
x4->params.b_repeat_headers = 0; |
|
|
|
if (x4->x264_params) { |
|
AVDictionary *dict = NULL; |
|
AVDictionaryEntry *en = NULL; |
|
|
|
if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) { |
|
while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) { |
|
if (x264_param_parse(&x4->params, en->key, en->value) < 0) |
|
av_log(avctx, AV_LOG_WARNING, |
|
"Error parsing option '%s = %s'.\n", |
|
en->key, en->value); |
|
} |
|
|
|
av_dict_free(&dict); |
|
} |
|
} |
|
|
|
// update AVCodecContext with x264 parameters |
|
avctx->has_b_frames = x4->params.i_bframe ? |
|
x4->params.i_bframe_pyramid ? 2 : 1 : 0; |
|
if (avctx->max_b_frames < 0) |
|
avctx->max_b_frames = 0; |
|
|
|
avctx->bit_rate = x4->params.rc.i_bitrate*1000; |
|
|
|
x4->enc = x264_encoder_open(&x4->params); |
|
if (!x4->enc) |
|
return AVERROR_UNKNOWN; |
|
|
|
avctx->coded_frame = av_frame_alloc(); |
|
if (!avctx->coded_frame) |
|
return AVERROR(ENOMEM); |
|
|
|
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) { |
|
x264_nal_t *nal; |
|
uint8_t *p; |
|
int nnal, s, i; |
|
|
|
s = x264_encoder_headers(x4->enc, &nal, &nnal); |
|
avctx->extradata = p = av_malloc(s); |
|
if (!p) |
|
return AVERROR(ENOMEM); |
|
|
|
for (i = 0; i < nnal; i++) { |
|
/* Don't put the SEI in extradata. */ |
|
if (nal[i].i_type == NAL_SEI) { |
|
av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25); |
|
x4->sei_size = nal[i].i_payload; |
|
x4->sei = av_malloc(x4->sei_size); |
|
if (!x4->sei) |
|
return AVERROR(ENOMEM); |
|
memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload); |
|
continue; |
|
} |
|
memcpy(p, nal[i].p_payload, nal[i].i_payload); |
|
p += nal[i].i_payload; |
|
} |
|
avctx->extradata_size = p - avctx->extradata; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const enum AVPixelFormat pix_fmts_8bit[] = { |
|
AV_PIX_FMT_YUV420P, |
|
AV_PIX_FMT_YUVJ420P, |
|
AV_PIX_FMT_YUV422P, |
|
AV_PIX_FMT_YUVJ422P, |
|
AV_PIX_FMT_YUV444P, |
|
AV_PIX_FMT_YUVJ444P, |
|
AV_PIX_FMT_NV12, |
|
AV_PIX_FMT_NV16, |
|
AV_PIX_FMT_NONE |
|
}; |
|
static const enum AVPixelFormat pix_fmts_9bit[] = { |
|
AV_PIX_FMT_YUV420P9, |
|
AV_PIX_FMT_YUV444P9, |
|
AV_PIX_FMT_NONE |
|
}; |
|
static const enum AVPixelFormat pix_fmts_10bit[] = { |
|
AV_PIX_FMT_YUV420P10, |
|
AV_PIX_FMT_YUV422P10, |
|
AV_PIX_FMT_YUV444P10, |
|
AV_PIX_FMT_NV20, |
|
AV_PIX_FMT_NONE |
|
}; |
|
|
|
static av_cold void X264_init_static(AVCodec *codec) |
|
{ |
|
if (x264_bit_depth == 8) |
|
codec->pix_fmts = pix_fmts_8bit; |
|
else if (x264_bit_depth == 9) |
|
codec->pix_fmts = pix_fmts_9bit; |
|
else if (x264_bit_depth == 10) |
|
codec->pix_fmts = pix_fmts_10bit; |
|
} |
|
|
|
#define OFFSET(x) offsetof(X264Context, x) |
|
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
|
static const AVOption options[] = { |
|
{ "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE}, |
|
{ "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, |
|
{ "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, |
|
{ "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE}, |
|
{ "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE }, |
|
{ "crf_max", "In CRF mode, prevents VBV from lowering quality beyond this point.",OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE }, |
|
{ "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE }, |
|
{ "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"}, |
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" }, |
|
{ "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" }, |
|
{ "autovariance", "Auto-variance AQ (experimental)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" }, |
|
{ "aq-strength", "AQ strength. Reduces blocking and blurring in flat and textured areas.", OFFSET(aq_strength), AV_OPT_TYPE_FLOAT, {.dbl = -1}, -1, FLT_MAX, VE}, |
|
{ "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, |
|
{ "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE}, |
|
{ "rc-lookahead", "Number of frames to look ahead for frametype and ratecontrol", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE }, |
|
{ "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, |
|
{ "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" }, |
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" }, |
|
{ "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" }, |
|
{ "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" }, |
|
{ "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, |
|
{ "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, |
|
{ "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, |
|
{ "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE }, |
|
{ "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" }, |
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" }, |
|
{ "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" }, |
|
{ "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" }, |
|
{ "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 1, VE }, |
|
{ "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE}, |
|
{ "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE}, |
|
{ "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE}, |
|
{ "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE}, |
|
{ "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, |
|
{ "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE}, |
|
{ "partitions", "A comma-separated list of partitions to consider. " |
|
"Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, |
|
{ "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" }, |
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" }, |
|
{ "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" }, |
|
{ "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" }, |
|
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" }, |
|
{ "slice-max-size","Limit the size of each slice in bytes", OFFSET(slice_max_size),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE }, |
|
{ "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE }, |
|
{ "nal-hrd", "Signal HRD information (requires vbv-bufsize; " |
|
"cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" }, |
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" }, |
|
{ "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" }, |
|
{ "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" }, |
|
{ "x264-params", "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE }, |
|
{ NULL }, |
|
}; |
|
|
|
static const AVClass class = { |
|
.class_name = "libx264", |
|
.item_name = av_default_item_name, |
|
.option = options, |
|
.version = LIBAVUTIL_VERSION_INT, |
|
}; |
|
|
|
static const AVCodecDefault x264_defaults[] = { |
|
{ "b", "0" }, |
|
{ "bf", "-1" }, |
|
{ "g", "-1" }, |
|
{ "i_qfactor", "-1" }, |
|
{ "qmin", "-1" }, |
|
{ "qmax", "-1" }, |
|
{ "qdiff", "-1" }, |
|
{ "qblur", "-1" }, |
|
{ "qcomp", "-1" }, |
|
{ "refs", "-1" }, |
|
{ "sc_threshold", "-1" }, |
|
{ "trellis", "-1" }, |
|
{ "nr", "-1" }, |
|
{ "me_range", "-1" }, |
|
{ "me_method", "-1" }, |
|
{ "subq", "-1" }, |
|
{ "b_strategy", "-1" }, |
|
{ "keyint_min", "-1" }, |
|
{ "coder", "-1" }, |
|
{ "cmp", "-1" }, |
|
{ "threads", AV_STRINGIFY(X264_THREADS_AUTO) }, |
|
{ "thread_type", "0" }, |
|
{ "flags", "+cgop" }, |
|
{ "rc_init_occupancy","-1" }, |
|
{ NULL }, |
|
}; |
|
|
|
AVCodec ff_libx264_encoder = { |
|
.name = "libx264", |
|
.long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"), |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.id = AV_CODEC_ID_H264, |
|
.priv_data_size = sizeof(X264Context), |
|
.init = X264_init, |
|
.encode2 = X264_frame, |
|
.close = X264_close, |
|
.capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS, |
|
.priv_class = &class, |
|
.defaults = x264_defaults, |
|
.init_static_data = X264_init_static, |
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | |
|
FF_CODEC_CAP_INIT_CLEANUP, |
|
};
|
|
|