2010-07-27 09:18:36 +02:00
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/*
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* AVS encoding using the xavs library
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* Copyright (C) 2010 Amanda, Y.N. Wu <amanda11192003@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <stdint.h>
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2011-09-11 08:14:43 +02:00
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#include <float.h>
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2010-07-27 09:18:36 +02:00
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#include <xavs.h>
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#include "avcodec.h"
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2011-09-11 08:14:43 +02:00
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#include "internal.h"
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#include "libavutil/opt.h"
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2010-07-27 09:18:36 +02:00
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#define END_OF_STREAM 0x001
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#define XAVS_PART_I8X8 0x002 /* Analyze i8x8 (requires 8x8 transform) */
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#define XAVS_PART_P8X8 0x010 /* Analyze p16x8, p8x16 and p8x8 */
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#define XAVS_PART_B8X8 0x100 /* Analyze b16x8, b*/
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typedef struct XavsContext {
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xavs_param_t params;
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xavs_t *enc;
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xavs_picture_t pic;
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uint8_t *sei;
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int sei_size;
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AVFrame out_pic;
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int end_of_stream;
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2011-09-11 08:14:43 +02:00
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float crf;
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int cqp;
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int b_bias;
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float cplxblur;
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int direct_pred;
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int aud;
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int fast_pskip;
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int mbtree;
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int mixed_refs;
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2010-07-27 09:18:36 +02:00
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} XavsContext;
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static void XAVS_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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[XAVS_LOG_ERROR] = AV_LOG_ERROR,
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[XAVS_LOG_WARNING] = AV_LOG_WARNING,
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[XAVS_LOG_INFO] = AV_LOG_INFO,
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[XAVS_LOG_DEBUG] = AV_LOG_DEBUG
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};
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if (level < 0 || level > XAVS_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, uint8_t *buf,
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int size, xavs_nal_t *nals,
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int nnal, int skip_sei)
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{
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XavsContext *x4 = ctx->priv_data;
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uint8_t *p = buf;
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int i, s;
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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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/* Don't put the SEI in extradata. */
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if (skip_sei && nals[i].i_type == NAL_SEI) {
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x4->sei = av_malloc( 5 + nals[i].i_payload * 4 / 3 );
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if (xavs_nal_encode(x4->sei, &x4->sei_size, 1, nals + i) < 0)
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return -1;
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continue;
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}
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s = xavs_nal_encode(p, &size, 1, nals + i);
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if (s < 0)
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return -1;
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p += s;
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}
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return p - buf;
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}
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static int XAVS_frame(AVCodecContext *ctx, uint8_t *buf,
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int bufsize, void *data)
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{
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XavsContext *x4 = ctx->priv_data;
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AVFrame *frame = data;
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xavs_nal_t *nal;
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int nnal, i;
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xavs_picture_t pic_out;
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x4->pic.img.i_csp = XAVS_CSP_I420;
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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 = XAVS_TYPE_AUTO;
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}
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if (xavs_encoder_encode(x4->enc, &nal, &nnal,
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frame? &x4->pic: NULL, &pic_out) < 0)
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return -1;
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bufsize = encode_nals(ctx, buf, bufsize, nal, nnal, 0);
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if (bufsize < 0)
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return -1;
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if (!bufsize && !frame && !(x4->end_of_stream)){
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buf[bufsize] = 0x0;
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buf[bufsize+1] = 0x0;
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buf[bufsize+2] = 0x01;
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buf[bufsize+3] = 0xb1;
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bufsize += 4;
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x4->end_of_stream = END_OF_STREAM;
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return bufsize;
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}
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/* FIXME: libxavs now provides DTS */
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/* but AVFrame doesn't have a field for it. */
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x4->out_pic.pts = pic_out.i_pts;
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switch (pic_out.i_type) {
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case XAVS_TYPE_IDR:
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case XAVS_TYPE_I:
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2011-04-28 01:40:44 +02:00
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x4->out_pic.pict_type = AV_PICTURE_TYPE_I;
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2010-07-27 09:18:36 +02:00
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break;
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case XAVS_TYPE_P:
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2011-04-28 01:40:44 +02:00
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x4->out_pic.pict_type = AV_PICTURE_TYPE_P;
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2010-07-27 09:18:36 +02:00
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break;
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case XAVS_TYPE_B:
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case XAVS_TYPE_BREF:
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2011-04-28 01:40:44 +02:00
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x4->out_pic.pict_type = AV_PICTURE_TYPE_B;
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2010-07-27 09:18:36 +02:00
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break;
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}
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/* There is no IDR frame in AVS JiZhun */
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/* Sequence header is used as a flag */
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x4->out_pic.key_frame = pic_out.i_type == XAVS_TYPE_I;
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x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
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return bufsize;
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}
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static av_cold int XAVS_close(AVCodecContext *avctx)
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{
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XavsContext *x4 = avctx->priv_data;
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av_freep(&avctx->extradata);
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av_free(x4->sei);
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if (x4->enc)
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xavs_encoder_close(x4->enc);
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return 0;
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}
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static av_cold int XAVS_init(AVCodecContext *avctx)
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{
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XavsContext *x4 = avctx->priv_data;
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x4->sei_size = 0;
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xavs_param_default(&x4->params);
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x4->params.pf_log = XAVS_log;
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x4->params.p_log_private = avctx;
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x4->params.i_keyint_max = avctx->gop_size;
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2011-09-11 08:14:43 +02:00
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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 = XAVS_RC_ABR;
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}
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2010-07-27 09:18:36 +02:00
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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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2011-09-11 08:14:43 +02:00
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#if FF_API_X264_GLOBAL_OPTS
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2010-07-27 09:18:36 +02:00
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if (avctx->crf) {
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x4->params.rc.i_rc_method = XAVS_RC_CRF;
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x4->params.rc.f_rf_constant = avctx->crf;
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} else if (avctx->cqp > -1) {
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x4->params.rc.i_rc_method = XAVS_RC_CQP;
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x4->params.rc.i_qp_constant = avctx->cqp;
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}
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2011-09-11 08:14:43 +02:00
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#endif
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if (x4->crf >= 0) {
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x4->params.rc.i_rc_method = XAVS_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 = XAVS_RC_CQP;
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x4->params.rc.i_qp_constant = x4->cqp;
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}
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2010-07-27 09:18:36 +02:00
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}
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2011-09-11 08:14:43 +02:00
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#if FF_API_X264_GLOBAL_OPTS
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if (avctx->bframebias)
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x4->params.i_bframe_bias = avctx->bframebias;
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if (avctx->deblockalpha)
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x4->params.i_deblocking_filter_alphac0 = avctx->deblockalpha;
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if (avctx->deblockbeta)
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x4->params.i_deblocking_filter_beta = avctx->deblockbeta;
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if (avctx->complexityblur >= 0)
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x4->params.rc.f_complexity_blur = avctx->complexityblur;
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if (avctx->directpred >= 0)
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x4->params.analyse.i_direct_mv_pred = avctx->directpred;
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if (avctx->partitions) {
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if (avctx->partitions & XAVS_PART_I8X8)
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x4->params.analyse.inter |= XAVS_ANALYSE_I8x8;
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if (avctx->partitions & XAVS_PART_P8X8)
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x4->params.analyse.inter |= XAVS_ANALYSE_PSUB16x16;
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if (avctx->partitions & XAVS_PART_B8X8)
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x4->params.analyse.inter |= XAVS_ANALYSE_BSUB16x16;
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}
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x4->params.rc.b_mb_tree = !!(avctx->flags2 & CODEC_FLAG2_MBTREE);
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x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD;
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x4->params.analyse.b_mixed_references = avctx->flags2 & CODEC_FLAG2_MIXED_REFS;
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x4->params.analyse.b_fast_pskip = avctx->flags2 & CODEC_FLAG2_FASTPSKIP;
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x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED;
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#endif
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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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if (x4->fast_pskip >= 0)
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x4->params.analyse.b_fast_pskip = x4->fast_pskip;
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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->b_bias != INT_MIN)
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x4->params.i_bframe_bias = x4->b_bias;
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if (x4->cplxblur >= 0)
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x4->params.rc.f_complexity_blur = x4->cplxblur;
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2010-07-27 09:18:36 +02:00
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x4->params.i_bframe = avctx->max_b_frames;
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/* cabac is not included in AVS JiZhun Profile */
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x4->params.b_cabac = 0;
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x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
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avctx->has_b_frames = !!avctx->max_b_frames;
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/* AVS doesn't allow B picture as reference */
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/* The max allowed reference frame number of B is 2 */
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x4->params.i_keyint_min = avctx->keyint_min;
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if (x4->params.i_keyint_min > x4->params.i_keyint_max)
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x4->params.i_keyint_min = x4->params.i_keyint_max;
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x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
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// x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
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x4->params.rc.i_qp_min = avctx->qmin;
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x4->params.rc.i_qp_max = avctx->qmax;
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x4->params.rc.i_qp_step = avctx->max_qdiff;
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x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
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x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
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x4->params.i_frame_reference = avctx->refs;
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x4->params.i_width = avctx->width;
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x4->params.i_height = avctx->height;
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x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
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x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
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/* This is only used for counting the fps */
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x4->params.i_fps_num = avctx->time_base.den;
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x4->params.i_fps_den = avctx->time_base.num;
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x4->params.analyse.inter = XAVS_ANALYSE_I8x8 |XAVS_ANALYSE_PSUB16x16| XAVS_ANALYSE_BSUB16x16;
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switch (avctx->me_method) {
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case ME_EPZS:
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x4->params.analyse.i_me_method = XAVS_ME_DIA;
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break;
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case ME_HEX:
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x4->params.analyse.i_me_method = XAVS_ME_HEX;
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break;
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case ME_UMH:
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x4->params.analyse.i_me_method = XAVS_ME_UMH;
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break;
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case ME_FULL:
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x4->params.analyse.i_me_method = XAVS_ME_ESA;
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break;
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case ME_TESA:
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x4->params.analyse.i_me_method = XAVS_ME_TESA;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
x4->params.analyse.i_me_method = XAVS_ME_HEX;
|
|
|
|
}
|
|
|
|
|
|
|
|
x4->params.analyse.i_me_range = avctx->me_range;
|
|
|
|
x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
|
|
|
|
|
|
|
|
x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
|
|
|
|
/* AVS P2 only enables 8x8 transform */
|
|
|
|
x4->params.analyse.b_transform_8x8 = 1; //avctx->flags2 & CODEC_FLAG2_8X8DCT;
|
|
|
|
|
|
|
|
x4->params.analyse.i_trellis = avctx->trellis;
|
|
|
|
x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
|
|
|
|
|
|
|
|
if (avctx->level > 0)
|
|
|
|
x4->params.i_level_idc = avctx->level;
|
|
|
|
|
|
|
|
x4->params.rc.f_rate_tolerance =
|
|
|
|
(float)avctx->bit_rate_tolerance/avctx->bit_rate;
|
|
|
|
|
|
|
|
if ((avctx->rc_buffer_size) &&
|
|
|
|
(avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
|
|
|
|
x4->params.rc.f_vbv_buffer_init =
|
|
|
|
(float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
|
|
|
|
} else
|
|
|
|
x4->params.rc.f_vbv_buffer_init = 0.9;
|
|
|
|
|
|
|
|
/* TAG:do we have MB tree RC method */
|
|
|
|
/* what is the RC method we are now using? Default NO */
|
|
|
|
x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
|
|
|
|
x4->params.rc.f_pb_factor = avctx->b_quant_factor;
|
|
|
|
x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
|
|
|
|
|
|
|
|
x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
|
|
|
|
x4->params.i_log_level = XAVS_LOG_DEBUG;
|
|
|
|
x4->params.i_threads = avctx->thread_count;
|
|
|
|
x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
|
|
|
|
|
|
|
|
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
|
|
|
|
x4->params.b_repeat_headers = 0;
|
|
|
|
|
|
|
|
x4->enc = xavs_encoder_open(&x4->params);
|
|
|
|
if (!x4->enc)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
avctx->coded_frame = &x4->out_pic;
|
|
|
|
/* TAG: Do we have GLOBAL HEADER in AVS */
|
|
|
|
/* We Have PPS and SPS in AVS */
|
|
|
|
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
|
|
|
|
xavs_nal_t *nal;
|
|
|
|
int nnal, s;
|
|
|
|
|
|
|
|
s = xavs_encoder_headers(x4->enc, &nal, &nnal);
|
|
|
|
|
|
|
|
avctx->extradata = av_malloc(s);
|
|
|
|
avctx->extradata_size = encode_nals(avctx, avctx->extradata, s, nal, nnal, 1);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-09-11 08:14:43 +02:00
|
|
|
#define OFFSET(x) offsetof(XavsContext, x)
|
|
|
|
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
|
|
|
|
static const AVOption options[] = {
|
2011-10-04 07:38:01 +02:00
|
|
|
{ "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE },
|
|
|
|
{ "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE },
|
|
|
|
{ "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, {INT_MIN}, INT_MIN, INT_MAX, VE },
|
|
|
|
{ "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE},
|
|
|
|
{ "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE, "direct-pred" },
|
|
|
|
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { XAVS_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
|
|
|
|
{ "spatial", NULL, 0, AV_OPT_TYPE_CONST, { XAVS_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
|
|
|
|
{ "temporal", NULL, 0, AV_OPT_TYPE_CONST, { XAVS_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
|
|
|
|
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, { XAVS_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
|
|
|
|
{ "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, {-1 }, -1, 1, VE},
|
|
|
|
{ "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, {-1 }, -1, 1, VE},
|
|
|
|
{ "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, {-1}, -1, 1, VE },
|
|
|
|
{ "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, {-1 }, -1, 1, VE},
|
2011-09-11 08:14:43 +02:00
|
|
|
{ NULL },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVClass class = {
|
|
|
|
.class_name = "libxavs",
|
|
|
|
.item_name = av_default_item_name,
|
|
|
|
.option = options,
|
|
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVCodecDefault xavs_defaults[] = {
|
|
|
|
{ "b", "0" },
|
|
|
|
{ NULL },
|
|
|
|
};
|
|
|
|
|
2011-01-25 22:40:11 +01:00
|
|
|
AVCodec ff_libxavs_encoder = {
|
2010-07-27 09:18:36 +02:00
|
|
|
.name = "libxavs",
|
2010-09-26 01:27:16 +02:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2010-07-27 09:18:36 +02:00
|
|
|
.id = CODEC_ID_CAVS,
|
|
|
|
.priv_data_size = sizeof(XavsContext),
|
|
|
|
.init = XAVS_init,
|
|
|
|
.encode = XAVS_frame,
|
|
|
|
.close = XAVS_close,
|
2012-01-10 17:21:52 +01:00
|
|
|
.capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
|
2010-07-27 09:18:36 +02:00
|
|
|
.pix_fmts = (const enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_NONE },
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("libxavs - the Chinese Audio Video Standard Encoder"),
|
2011-09-11 08:14:43 +02:00
|
|
|
.priv_class = &class,
|
|
|
|
.defaults = xavs_defaults,
|
2010-07-27 09:18:36 +02:00
|
|
|
};
|
|
|
|
|