/* * xvid Rate control wrapper for lavc video encoders * * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <xvid.h> #include <unistd.h> #include "avcodec.h" #include "internal.h" //#include "dsputil.h" #include "mpegvideo.h" #undef NDEBUG #include <assert.h> extern unsigned int xvid_debug; int ff_xvid_rate_control_init(MpegEncContext *s){ char *tmp_name; int fd, i; xvid_plg_create_t xvid_plg_create; xvid_plugin_2pass2_t xvid_2pass2; //xvid_debug=-1; fd=av_tempfile("xvidrc.", &tmp_name); if (fd == -1) { av_log(NULL, AV_LOG_ERROR, "Can't create temporary pass2 file.\n"); return -1; } for(i=0; i<s->rc_context.num_entries; i++){ static const char *frame_types = " ipbs"; char tmp[256]; RateControlEntry *rce; rce= &s->rc_context.entry[i]; snprintf(tmp, sizeof(tmp), "%c %d %d %d %d %d %d\n", frame_types[rce->pict_type], (int)lrintf(rce->qscale / FF_QP2LAMBDA), rce->i_count, s->mb_num - rce->i_count - rce->skip_count, rce->skip_count, (rce->i_tex_bits + rce->p_tex_bits + rce->misc_bits+7)/8, (rce->header_bits+rce->mv_bits+7)/8); //av_log(NULL, AV_LOG_ERROR, "%s\n", tmp); write(fd, tmp, strlen(tmp)); } close(fd); memset(&xvid_2pass2, 0, sizeof(xvid_2pass2)); xvid_2pass2.version= XVID_MAKE_VERSION(1,1,0); xvid_2pass2.filename= tmp_name; xvid_2pass2.bitrate= s->avctx->bit_rate; xvid_2pass2.vbv_size= s->avctx->rc_buffer_size; xvid_2pass2.vbv_maxrate= s->avctx->rc_max_rate; xvid_2pass2.vbv_initial= s->avctx->rc_initial_buffer_occupancy; memset(&xvid_plg_create, 0, sizeof(xvid_plg_create)); xvid_plg_create.version= XVID_MAKE_VERSION(1,1,0); xvid_plg_create.fbase= s->avctx->time_base.den; xvid_plg_create.fincr= s->avctx->time_base.num; xvid_plg_create.param= &xvid_2pass2; if(xvid_plugin_2pass2(NULL, XVID_PLG_CREATE, &xvid_plg_create, &s->rc_context.non_lavc_opaque)<0){ av_log(NULL, AV_LOG_ERROR, "xvid_plugin_2pass2 failed\n"); return -1; } return 0; } float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run){ xvid_plg_data_t xvid_plg_data; memset(&xvid_plg_data, 0, sizeof(xvid_plg_data)); xvid_plg_data.version= XVID_MAKE_VERSION(1,1,0); xvid_plg_data.width = s->width; xvid_plg_data.height= s->height; xvid_plg_data.mb_width = s->mb_width; xvid_plg_data.mb_height= s->mb_height; xvid_plg_data.fbase= s->avctx->time_base.den; xvid_plg_data.fincr= s->avctx->time_base.num; xvid_plg_data.min_quant[0]= s->avctx->qmin; xvid_plg_data.min_quant[1]= s->avctx->qmin; xvid_plg_data.min_quant[2]= s->avctx->qmin; //FIXME i/b factor & offset xvid_plg_data.max_quant[0]= s->avctx->qmax; xvid_plg_data.max_quant[1]= s->avctx->qmax; xvid_plg_data.max_quant[2]= s->avctx->qmax; //FIXME i/b factor & offset xvid_plg_data.bquant_offset = 0; // 100 * s->avctx->b_quant_offset; xvid_plg_data.bquant_ratio = 100; // * s->avctx->b_quant_factor; #if 0 xvid_plg_data.stats.hlength= X #endif if(!s->rc_context.dry_run_qscale){ if(s->picture_number){ xvid_plg_data.length= xvid_plg_data.stats.length= (s->frame_bits + 7)/8; xvid_plg_data.frame_num= s->rc_context.last_picture_number; xvid_plg_data.quant= s->qscale; xvid_plg_data.type= s->last_pict_type; if(xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_AFTER, &xvid_plg_data, NULL)){ av_log(s->avctx, AV_LOG_ERROR, "xvid_plugin_2pass2(handle, XVID_PLG_AFTER, ...) FAILED\n"); return -1; } } s->rc_context.last_picture_number= xvid_plg_data.frame_num= s->picture_number; xvid_plg_data.quant= 0; if(xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_BEFORE, &xvid_plg_data, NULL)){ av_log(s->avctx, AV_LOG_ERROR, "xvid_plugin_2pass2(handle, XVID_PLG_BEFORE, ...) FAILED\n"); return -1; } s->rc_context.dry_run_qscale= xvid_plg_data.quant; } xvid_plg_data.quant= s->rc_context.dry_run_qscale; if(!dry_run) s->rc_context.dry_run_qscale= 0; if(s->pict_type == B_TYPE) //FIXME this is not exactly identical to xvid return xvid_plg_data.quant * FF_QP2LAMBDA * s->avctx->b_quant_factor + s->avctx->b_quant_offset; else return xvid_plg_data.quant * FF_QP2LAMBDA; } void ff_xvid_rate_control_uninit(MpegEncContext *s){ xvid_plg_destroy_t xvid_plg_destroy; xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_DESTROY, &xvid_plg_destroy, NULL); }