mirror of https://github.com/FFmpeg/FFmpeg.git
The feature has outlived is usefulness and complicates the code.pull/254/merge
Diego Biurrun
8 years ago
parent
ac648bb835
commit
a6901b9c6b
6 changed files with 30 additions and 255 deletions
@ -1,38 +0,0 @@ |
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/*
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* copyright (C) 2006 Corey Hickey |
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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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#ifndef AVCODEC_LIBXVID_H |
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#define AVCODEC_LIBXVID_H |
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/**
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* @file |
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* common functions for use with the Xvid wrappers |
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*/ |
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int ff_tempfile(const char *prefix, char **filename); |
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struct MpegEncContext; |
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/* rate control */ |
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int ff_xvid_rate_control_init(struct MpegEncContext *s); |
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void ff_xvid_rate_control_uninit(struct MpegEncContext *s); |
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float ff_xvid_rate_estimate_qscale(struct MpegEncContext *s, int dry_run); |
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#endif /* AVCODEC_LIBXVID_H */ |
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@ -1,181 +0,0 @@ |
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/*
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* Xvid rate control wrapper for lavc video encoders |
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* |
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* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
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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 "config.h" |
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#include <fcntl.h> |
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#include <unistd.h> |
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#include <xvid.h> |
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#include "libavutil/attributes.h" |
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#include "libavutil/internal.h" |
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#include "avcodec.h" |
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#include "libxvid.h" |
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#include "mpegvideo.h" |
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/* Create temporary file using mkstemp(), tries /tmp first, if possible.
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* *prefix can be a character constant; *filename will be allocated internally. |
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* Return file descriptor of opened file (or error code on error) |
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* and opened file name in **filename. */ |
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int ff_tempfile(const char *prefix, char **filename) |
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{ |
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int fd = -1; |
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size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */ |
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*filename = av_malloc(len); |
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if (!(*filename)) { |
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av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n"); |
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return AVERROR(ENOMEM); |
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} |
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snprintf(*filename, len, "/tmp/%sXXXXXX", prefix); |
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fd = mkstemp(*filename); |
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if (fd < 0) { |
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snprintf(*filename, len, "./%sXXXXXX", prefix); |
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fd = mkstemp(*filename); |
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} |
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if (fd < 0) { |
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av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename); |
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return AVERROR(EIO); |
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} |
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return fd; /* success */ |
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} |
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av_cold int ff_xvid_rate_control_init(MpegEncContext *s) |
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{ |
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char *tmp_name; |
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int fd, i; |
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xvid_plg_create_t xvid_plg_create = { 0 }; |
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xvid_plugin_2pass2_t xvid_2pass2 = { 0 }; |
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fd = ff_tempfile("xvidrc.", &tmp_name); |
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if (fd < 0) { |
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av_log(s, AV_LOG_ERROR, "Cannot create temporary pass2 file.\n"); |
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return fd; |
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} |
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for (i = 0; i < s->rc_context.num_entries; i++) { |
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static const char frame_types[] = " ipbs"; |
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char tmp[256]; |
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RateControlEntry *rce; |
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rce = &s->rc_context.entry[i]; |
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snprintf(tmp, sizeof(tmp), "%c %d %d %d %d %d %d\n", |
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frame_types[rce->pict_type], |
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(int) lrintf(rce->qscale / FF_QP2LAMBDA), |
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rce->i_count, s->mb_num - rce->i_count - rce->skip_count, |
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rce->skip_count, |
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(rce->i_tex_bits + rce->p_tex_bits + rce->misc_bits + 7) / 8, |
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(rce->header_bits + rce->mv_bits + 7) / 8); |
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if (strlen(tmp) > write(fd, tmp, strlen(tmp))) { |
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av_log(s, AV_LOG_ERROR, "Cannot write to temporary pass2 file.\n"); |
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return AVERROR(EIO); |
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} |
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} |
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close(fd); |
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xvid_2pass2.version = XVID_MAKE_VERSION(1, 1, 0); |
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xvid_2pass2.filename = tmp_name; |
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xvid_2pass2.bitrate = s->avctx->bit_rate; |
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xvid_2pass2.vbv_size = s->avctx->rc_buffer_size; |
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xvid_2pass2.vbv_maxrate = s->avctx->rc_max_rate; |
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xvid_2pass2.vbv_initial = s->avctx->rc_initial_buffer_occupancy; |
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xvid_plg_create.version = XVID_MAKE_VERSION(1, 1, 0); |
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xvid_plg_create.fbase = s->avctx->time_base.den; |
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xvid_plg_create.fincr = s->avctx->time_base.num; |
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xvid_plg_create.param = &xvid_2pass2; |
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if (xvid_plugin_2pass2(NULL, XVID_PLG_CREATE, &xvid_plg_create, |
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&s->rc_context.non_lavc_opaque) < 0) { |
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av_log(s, AV_LOG_ERROR, "xvid_plugin_2pass2 failed\n"); |
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return -1; |
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} |
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return 0; |
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} |
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float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run) |
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{ |
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xvid_plg_data_t xvid_plg_data = { 0 }; |
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xvid_plg_data.version = XVID_MAKE_VERSION(1, 1, 0); |
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xvid_plg_data.width = s->width; |
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xvid_plg_data.height = s->height; |
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xvid_plg_data.mb_width = s->mb_width; |
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xvid_plg_data.mb_height = s->mb_height; |
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xvid_plg_data.fbase = s->avctx->time_base.den; |
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xvid_plg_data.fincr = s->avctx->time_base.num; |
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xvid_plg_data.min_quant[0] = s->avctx->qmin; |
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xvid_plg_data.min_quant[1] = s->avctx->qmin; |
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xvid_plg_data.min_quant[2] = s->avctx->qmin; // FIXME i/b factor & offset
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xvid_plg_data.max_quant[0] = s->avctx->qmax; |
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xvid_plg_data.max_quant[1] = s->avctx->qmax; |
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xvid_plg_data.max_quant[2] = s->avctx->qmax; // FIXME i/b factor & offset
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xvid_plg_data.bquant_offset = 0; // 100 * s->avctx->b_quant_offset;
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xvid_plg_data.bquant_ratio = 100; // * s->avctx->b_quant_factor;
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if (!s->rc_context.dry_run_qscale) { |
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if (s->picture_number) { |
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xvid_plg_data.length = |
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xvid_plg_data.stats.length = (s->frame_bits + 7) / 8; |
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xvid_plg_data.frame_num = s->rc_context.last_picture_number; |
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xvid_plg_data.quant = s->qscale; |
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xvid_plg_data.type = s->last_pict_type; |
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if (xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, |
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XVID_PLG_AFTER, &xvid_plg_data, NULL)) { |
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av_log(s, AV_LOG_ERROR, |
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"xvid_plugin_2pass2(handle, XVID_PLG_AFTER, ...) FAILED\n"); |
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return -1; |
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} |
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} |
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s->rc_context.last_picture_number = |
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xvid_plg_data.frame_num = s->picture_number; |
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xvid_plg_data.quant = 0; |
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if (xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, |
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XVID_PLG_BEFORE, &xvid_plg_data, NULL)) { |
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av_log(s, AV_LOG_ERROR, |
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"xvid_plugin_2pass2(handle, XVID_PLG_BEFORE, ...) FAILED\n"); |
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return -1; |
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} |
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s->rc_context.dry_run_qscale = xvid_plg_data.quant; |
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} |
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xvid_plg_data.quant = s->rc_context.dry_run_qscale; |
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if (!dry_run) |
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s->rc_context.dry_run_qscale = 0; |
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// FIXME this is not exactly identical to Xvid
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if (s->pict_type == AV_PICTURE_TYPE_B) |
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return xvid_plg_data.quant * FF_QP2LAMBDA * s->avctx->b_quant_factor + |
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s->avctx->b_quant_offset; |
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else |
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return xvid_plg_data.quant * FF_QP2LAMBDA; |
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} |
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av_cold void ff_xvid_rate_control_uninit(MpegEncContext *s) |
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{ |
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xvid_plg_destroy_t xvid_plg_destroy; |
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xvid_plugin_2pass2(s->rc_context.non_lavc_opaque, XVID_PLG_DESTROY, |
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&xvid_plg_destroy, NULL); |
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} |
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