[libav.git] / libavcodec / libx264.c

/*
 * H.264 encoding using the x264 library
 * Copyright (C) 2005  Mans Rullgard <mans@mansr.com>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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 FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "avcodec.h"
#include <x264.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct X264Context {
    x264_param_t params;
    x264_t *enc;
    x264_picture_t pic;
    uint8_t *sei;
    int sei_size;
    AVFrame out_pic;
} X264Context;

static void
X264_log(void *p, int level, const char *fmt, va_list args)
{
    static const int level_map[] = {
        [X264_LOG_ERROR]   = AV_LOG_ERROR,
        [X264_LOG_WARNING] = AV_LOG_WARNING,
        [X264_LOG_INFO]    = AV_LOG_INFO,
        [X264_LOG_DEBUG]   = AV_LOG_DEBUG
    };

    if(level < 0 || level > X264_LOG_DEBUG)
        return;

    av_vlog(p, level_map[level], fmt, args);
}


static int encode_nals(AVCodecContext *ctx, uint8_t *buf, int size, x264_nal_t *nals, int nnal, int skip_sei)
{
    X264Context *x4 = ctx->priv_data;
    uint8_t *p = buf;
    int i;

    /* Write the SEI as part of the first frame. */
    if(x4->sei_size > 0 && nnal > 0){
        memcpy(p, x4->sei, x4->sei_size);
        p += x4->sei_size;
        x4->sei_size = 0;
    }

    for(i = 0; i < nnal; i++){
        /* Don't put the SEI in extradata. */
        if(skip_sei && nals[i].i_type == NAL_SEI){
            x4->sei_size = nals[i].i_payload;
            x4->sei = av_malloc(x4->sei_size);
            memcpy(x4->sei, nals[i].p_payload, nals[i].i_payload);
            continue;
        }
        memcpy(p, nals[i].p_payload, nals[i].i_payload);
        p += nals[i].i_payload;
    }

    return p - buf;
}

static int
X264_frame(AVCodecContext *ctx, uint8_t *buf, int bufsize, void *data)
{
    X264Context *x4 = ctx->priv_data;
    AVFrame *frame = data;
    x264_nal_t *nal;
    int nnal, i;
    x264_picture_t pic_out;

    x4->pic.img.i_csp = X264_CSP_I420;
    x4->pic.img.i_plane = 3;

    if(frame){
        for(i = 0; i < 3; i++){
            x4->pic.img.plane[i] = frame->data[i];
            x4->pic.img.i_stride[i] = frame->linesize[i];
        }

        x4->pic.i_pts = frame->pts;
        x4->pic.i_type = X264_TYPE_AUTO;
    }

    if(x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
        return -1;

    bufsize = encode_nals(ctx, buf, bufsize, nal, nnal, 0);
    if(bufsize < 0)
        return -1;

    /* FIXME: dts */
    x4->out_pic.pts = pic_out.i_pts;

    switch(pic_out.i_type){
    case X264_TYPE_IDR:
    case X264_TYPE_I:
        x4->out_pic.pict_type = FF_I_TYPE;
        break;
    case X264_TYPE_P:
        x4->out_pic.pict_type = FF_P_TYPE;
        break;
    case X264_TYPE_B:
    case X264_TYPE_BREF:
        x4->out_pic.pict_type = FF_B_TYPE;
        break;
    }

    x4->out_pic.key_frame = pic_out.i_type == X264_TYPE_IDR;
    x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;

    return bufsize;
}

static av_cold int
X264_close(AVCodecContext *avctx)
{
    X264Context *x4 = avctx->priv_data;

    av_freep(&avctx->extradata);
    av_free(x4->sei);

    if(x4->enc)
        x264_encoder_close(x4->enc);

    return 0;
}

static av_cold int
X264_init(AVCodecContext *avctx)
{
    X264Context *x4 = avctx->priv_data;

    x4->sei_size = 0;
    x264_param_default(&x4->params);

    x4->params.pf_log = X264_log;
    x4->params.p_log_private = avctx;

    x4->params.i_keyint_max = avctx->gop_size;
    x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
    x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
    x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
    x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
    if(avctx->flags & CODEC_FLAG_PASS2) x4->params.rc.b_stat_read = 1;
    else{
        if(avctx->crf){
            x4->params.rc.i_rc_method = X264_RC_CRF;
            x4->params.rc.f_rf_constant = avctx->crf;
        }else if(avctx->cqp > -1){
            x4->params.rc.i_rc_method = X264_RC_CQP;
            x4->params.rc.i_qp_constant = avctx->cqp;
        }
    }

    // if neither crf nor cqp modes are selected we have to enable the RC
    // we do it this way because we cannot check if the bitrate has been set
    if(!(avctx->crf || (avctx->cqp > -1))) x4->params.rc.i_rc_method = X264_RC_ABR;

    x4->params.i_bframe = avctx->max_b_frames;
    x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
    x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
    x4->params.i_bframe_bias = avctx->bframebias;
    x4->params.b_bframe_pyramid = avctx->flags2 & CODEC_FLAG2_BPYRAMID;
    avctx->has_b_frames= avctx->flags2 & CODEC_FLAG2_BPYRAMID ? 2 : !!avctx->max_b_frames;

    x4->params.i_keyint_min = avctx->keyint_min;
    if(x4->params.i_keyint_min > x4->params.i_keyint_max)
        x4->params.i_keyint_min = x4->params.i_keyint_max;

    x4->params.i_scenecut_threshold = avctx->scenechange_threshold;

    x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
    x4->params.i_deblocking_filter_alphac0 = avctx->deblockalpha;
    x4->params.i_deblocking_filter_beta = avctx->deblockbeta;

    x4->params.rc.i_qp_min = avctx->qmin;
    x4->params.rc.i_qp_max = avctx->qmax;
    x4->params.rc.i_qp_step = avctx->max_qdiff;

    x4->params.rc.f_qcompress = avctx->qcompress;  /* 0.0 => cbr, 1.0 => constant qp */
    x4->params.rc.f_qblur = avctx->qblur;        /* temporally blur quants */
    x4->params.rc.f_complexity_blur = avctx->complexityblur;

    x4->params.i_frame_reference = avctx->refs;

    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 = avctx->time_base.den;
    x4->params.i_fps_den = avctx->time_base.num;

    x4->params.analyse.inter = 0;
    if(avctx->partitions){
        if(avctx->partitions & X264_PART_I4X4)
            x4->params.analyse.inter |= X264_ANALYSE_I4x4;
        if(avctx->partitions & X264_PART_I8X8)
            x4->params.analyse.inter |= X264_ANALYSE_I8x8;
        if(avctx->partitions & X264_PART_P8X8)
            x4->params.analyse.inter |= X264_ANALYSE_PSUB16x16;
        if(avctx->partitions & X264_PART_P4X4)
            x4->params.analyse.inter |= X264_ANALYSE_PSUB8x8;
        if(avctx->partitions & X264_PART_B8X8)
            x4->params.analyse.inter |= X264_ANALYSE_BSUB16x16;
    }

    x4->params.analyse.i_direct_mv_pred = avctx->directpred;

    x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED;

    if(avctx->me_method == ME_EPZS)
        x4->params.analyse.i_me_method = X264_ME_DIA;
    else if(avctx->me_method == ME_HEX)
        x4->params.analyse.i_me_method = X264_ME_HEX;
    else if(avctx->me_method == ME_UMH)
        x4->params.analyse.i_me_method = X264_ME_UMH;
    else if(avctx->me_method == ME_FULL)
        x4->params.analyse.i_me_method = X264_ME_ESA;
    else if(avctx->me_method == ME_TESA)
        x4->params.analyse.i_me_method = X264_ME_TESA;
    else x4->params.analyse.i_me_method = X264_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_mixed_references =
        avctx->flags2 & CODEC_FLAG2_MIXED_REFS;
    x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
    x4->params.analyse.b_transform_8x8 = avctx->flags2 & CODEC_FLAG2_8X8DCT;
    x4->params.analyse.b_fast_pskip = avctx->flags2 & CODEC_FLAG2_FASTPSKIP;

    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 != 0) &&
            (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;

    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 = X264_LOG_DEBUG;

    x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD;

    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 = x264_encoder_open(&x4->params);
    if(!x4->enc)
        return -1;

    avctx->coded_frame = &x4->out_pic;

    if(avctx->flags & CODEC_FLAG_GLOBAL_HEADER){
        x264_nal_t *nal;
        int nnal, s;

        s = x264_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;
}

AVCodec libx264_encoder = {
    .name = "libx264",
    .type = CODEC_TYPE_VIDEO,
    .id = CODEC_ID_H264,
    .priv_data_size = sizeof(X264Context),
    .init = X264_init,
    .encode = X264_frame,
    .close = X264_close,
    .capabilities = CODEC_CAP_DELAY,
    .pix_fmts = (const enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_NONE },
    .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
};
Commit	Line	Data
6662ec29 MN	1	/*
6662ec29 MN	2	* H.264 encoding using the x264 library
f2250162	3	* Copyright (C) 2005 Mans Rullgard <mans@mansr.com>
6662ec29	4	*
b78e7197 DB	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
6662ec29 MN	8	* modify it under the terms of the GNU Lesser General Public
6662ec29 MN	9	* License as published by the Free Software Foundation; either
b78e7197	10	* version 2.1 of the License, or (at your option) any later version.
6662ec29	11	*
b78e7197	12	* FFmpeg is distributed in the hope that it will be useful,
6662ec29 MN	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
b78e7197	18	* License along with FFmpeg; if not, write to the Free Software
5509bffa	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6662ec29 MN	20	*/
	21
	22	#include "avcodec.h"
	23	#include <x264.h>
337afd14	24	#include <math.h>
58f7833e RS	25	#include <stdio.h>
	26	#include <stdlib.h>
	27	#include <string.h>
6662ec29 MN	28
	29	typedef struct X264Context {
	30	x264_param_t params;
	31	x264_t *enc;
	32	x264_picture_t pic;
fe022ce2 JGG	33	uint8_t *sei;
fe022ce2 JGG	34	int sei_size;
6662ec29 MN	35	AVFrame out_pic;
	36	} X264Context;
	37
	38	static void
	39	X264_log(void p, int level, const char fmt, va_list args)
	40	{
	41	static const int level_map[] = {
bb270c08	42	[X264_LOG_ERROR] = AV_LOG_ERROR,
3709f0d7	43	[X264_LOG_WARNING] = AV_LOG_WARNING,
bb270c08 DB	44	[X264_LOG_INFO] = AV_LOG_INFO,
bb270c08 DB	45	[X264_LOG_DEBUG] = AV_LOG_DEBUG
6662ec29 MN	46	};
	47
	48	if(level < 0 \|\| level > X264_LOG_DEBUG)
bb270c08	49	return;
6662ec29 MN	50
	51	av_vlog(p, level_map[level], fmt, args);
	52	}
	53
	54
2d3beede	55	static int encode_nals(AVCodecContext ctx, uint8_t buf, int size, x264_nal_t *nals, int nnal, int skip_sei)
6662ec29	56	{
fe022ce2	57	X264Context *x4 = ctx->priv_data;
f40487c2	58	uint8_t *p = buf;
2d3beede	59	int i;
fe022ce2 JGG	60
fe022ce2 JGG	61	/* Write the SEI as part of the first frame. */
2d3beede	62	if(x4->sei_size > 0 && nnal > 0){
fe022ce2 JGG	63	memcpy(p, x4->sei, x4->sei_size);
	64	p += x4->sei_size;
	65	x4->sei_size = 0;
	66	}
6662ec29 MN	67
6662ec29 MN	68	for(i = 0; i < nnal; i++){
fe022ce2	69	/* Don't put the SEI in extradata. */
2d3beede JGG	70	if(skip_sei && nals[i].i_type == NAL_SEI){
	71	x4->sei_size = nals[i].i_payload;
	72	x4->sei = av_malloc(x4->sei_size);
	73	memcpy(x4->sei, nals[i].p_payload, nals[i].i_payload);
fe022ce2 JGG	74	continue;
fe022ce2 JGG	75	}
2d3beede JGG	76	memcpy(p, nals[i].p_payload, nals[i].i_payload);
2d3beede JGG	77	p += nals[i].i_payload;
6662ec29 MN	78	}
	79
	80	return p - buf;
	81	}
	82
c328f313	83	static int
6662ec29 MN	84	X264_frame(AVCodecContext ctx, uint8_t buf, int bufsize, void *data)
	85	{
	86	X264Context *x4 = ctx->priv_data;
	87	AVFrame *frame = data;
	88	x264_nal_t *nal;
	89	int nnal, i;
	90	x264_picture_t pic_out;
	91
	92	x4->pic.img.i_csp = X264_CSP_I420;
	93	x4->pic.img.i_plane = 3;
	94
2d3beede	95	if(frame){
67bcc870 MR	96	for(i = 0; i < 3; i++){
	97	x4->pic.img.plane[i] = frame->data[i];
	98	x4->pic.img.i_stride[i] = frame->linesize[i];
	99	}
6662ec29	100
67bcc870 MR	101	x4->pic.i_pts = frame->pts;
67bcc870 MR	102	x4->pic.i_type = X264_TYPE_AUTO;
84278104	103	}
6662ec29	104
2d3beede	105	if(x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
bb270c08	106	return -1;
6662ec29	107
fe022ce2	108	bufsize = encode_nals(ctx, buf, bufsize, nal, nnal, 0);
6662ec29	109	if(bufsize < 0)
bb270c08	110	return -1;
6662ec29 MN	111
	112	/* FIXME: dts */
	113	x4->out_pic.pts = pic_out.i_pts;
	114
	115	switch(pic_out.i_type){
	116	case X264_TYPE_IDR:
	117	case X264_TYPE_I:
	118	x4->out_pic.pict_type = FF_I_TYPE;
	119	break;
	120	case X264_TYPE_P:
	121	x4->out_pic.pict_type = FF_P_TYPE;
	122	break;
	123	case X264_TYPE_B:
	124	case X264_TYPE_BREF:
	125	x4->out_pic.pict_type = FF_B_TYPE;
	126	break;
	127	}
	128
68c6d60f MR	129	x4->out_pic.key_frame = pic_out.i_type == X264_TYPE_IDR;
68c6d60f MR	130	x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
6662ec29 MN	131
	132	return bufsize;
	133	}
	134
98a6fff9	135	static av_cold int
6662ec29 MN	136	X264_close(AVCodecContext *avctx)
	137	{
	138	X264Context *x4 = avctx->priv_data;
	139
5c4e9728	140	av_freep(&avctx->extradata);
fe022ce2	141	av_free(x4->sei);
5c4e9728	142
6662ec29	143	if(x4->enc)
bb270c08	144	x264_encoder_close(x4->enc);
6662ec29 MN	145
	146	return 0;
	147	}
	148
98a6fff9	149	static av_cold int
6662ec29 MN	150	X264_init(AVCodecContext *avctx)
	151	{
	152	X264Context *x4 = avctx->priv_data;
	153
fe022ce2	154	x4->sei_size = 0;
6662ec29 MN	155	x264_param_default(&x4->params);
	156
	157	x4->params.pf_log = X264_log;
	158	x4->params.p_log_private = avctx;
	159
	160	x4->params.i_keyint_max = avctx->gop_size;
	161	x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
3f9d3777	162	x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
18ae520b	163	x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
682a48a1	164	x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
58f7833e RS	165	if(avctx->flags & CODEC_FLAG_PASS2) x4->params.rc.b_stat_read = 1;
58f7833e RS	166	else{
8b75e45d LM	167	if(avctx->crf){
8b75e45d LM	168	x4->params.rc.i_rc_method = X264_RC_CRF;
9f1c1c99	169	x4->params.rc.f_rf_constant = avctx->crf;
8b75e45d LM	170	}else if(avctx->cqp > -1){
	171	x4->params.rc.i_rc_method = X264_RC_CQP;
	172	x4->params.rc.i_qp_constant = avctx->cqp;
	173	}
58f7833e RS	174	}
	175
	176	// if neither crf nor cqp modes are selected we have to enable the RC
	177	// we do it this way because we cannot check if the bitrate has been set
8b75e45d	178	if(!(avctx->crf \|\| (avctx->cqp > -1))) x4->params.rc.i_rc_method = X264_RC_ABR;
58f7833e	179
d4e87f79 MR	180	x4->params.i_bframe = avctx->max_b_frames;
d4e87f79 MR	181	x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
0bc4c436	182	x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
58f7833e	183	x4->params.i_bframe_bias = avctx->bframebias;
682a48a1 BC	184	x4->params.b_bframe_pyramid = avctx->flags2 & CODEC_FLAG2_BPYRAMID;
682a48a1 BC	185	avctx->has_b_frames= avctx->flags2 & CODEC_FLAG2_BPYRAMID ? 2 : !!avctx->max_b_frames;
58f7833e RS	186
	187	x4->params.i_keyint_min = avctx->keyint_min;
	188	if(x4->params.i_keyint_min > x4->params.i_keyint_max)
	189	x4->params.i_keyint_min = x4->params.i_keyint_max;
	190
	191	x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
	192
682a48a1	193	x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
58f7833e RS	194	x4->params.i_deblocking_filter_alphac0 = avctx->deblockalpha;
58f7833e RS	195	x4->params.i_deblocking_filter_beta = avctx->deblockbeta;
f9791751	196
6662ec29 MN	197	x4->params.rc.i_qp_min = avctx->qmin;
	198	x4->params.rc.i_qp_max = avctx->qmax;
	199	x4->params.rc.i_qp_step = avctx->max_qdiff;
	200
18ae520b DA	201	x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
18ae520b DA	202	x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
58f7833e	203	x4->params.rc.f_complexity_blur = avctx->complexityblur;
18ae520b	204
58f7833e	205	x4->params.i_frame_reference = avctx->refs;
68c6d60f	206
6662ec29 MN	207	x4->params.i_width = avctx->width;
	208	x4->params.i_height = avctx->height;
	209	x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
	210	x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
c0df9d75 MN	211	x4->params.i_fps_num = avctx->time_base.den;
c0df9d75 MN	212	x4->params.i_fps_den = avctx->time_base.num;
6662ec29	213
58f7833e RS	214	x4->params.analyse.inter = 0;
	215	if(avctx->partitions){
	216	if(avctx->partitions & X264_PART_I4X4)
	217	x4->params.analyse.inter \|= X264_ANALYSE_I4x4;
	218	if(avctx->partitions & X264_PART_I8X8)
	219	x4->params.analyse.inter \|= X264_ANALYSE_I8x8;
	220	if(avctx->partitions & X264_PART_P8X8)
	221	x4->params.analyse.inter \|= X264_ANALYSE_PSUB16x16;
	222	if(avctx->partitions & X264_PART_P4X4)
	223	x4->params.analyse.inter \|= X264_ANALYSE_PSUB8x8;
	224	if(avctx->partitions & X264_PART_B8X8)
	225	x4->params.analyse.inter \|= X264_ANALYSE_BSUB16x16;
	226	}
	227
	228	x4->params.analyse.i_direct_mv_pred = avctx->directpred;
	229
682a48a1	230	x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED;
58f7833e RS	231
	232	if(avctx->me_method == ME_EPZS)
	233	x4->params.analyse.i_me_method = X264_ME_DIA;
	234	else if(avctx->me_method == ME_HEX)
	235	x4->params.analyse.i_me_method = X264_ME_HEX;
	236	else if(avctx->me_method == ME_UMH)
	237	x4->params.analyse.i_me_method = X264_ME_UMH;
	238	else if(avctx->me_method == ME_FULL)
	239	x4->params.analyse.i_me_method = X264_ME_ESA;
89223ef6 BC	240	else if(avctx->me_method == ME_TESA)
89223ef6 BC	241	x4->params.analyse.i_me_method = X264_ME_TESA;
58f7833e RS	242	else x4->params.analyse.i_me_method = X264_ME_HEX;
	243
	244	x4->params.analyse.i_me_range = avctx->me_range;
	245	x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
	246
58f7833e	247	x4->params.analyse.b_mixed_references =
682a48a1 BC	248	avctx->flags2 & CODEC_FLAG2_MIXED_REFS;
	249	x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
	250	x4->params.analyse.b_transform_8x8 = avctx->flags2 & CODEC_FLAG2_8X8DCT;
	251	x4->params.analyse.b_fast_pskip = avctx->flags2 & CODEC_FLAG2_FASTPSKIP;
58f7833e RS	252
58f7833e RS	253	x4->params.analyse.i_trellis = avctx->trellis;
277fe229	254	x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
58f7833e RS	255
	256	if(avctx->level > 0) x4->params.i_level_idc = avctx->level;
	257
4f59b684	258	x4->params.rc.f_rate_tolerance =
58f7833e RS	259	(float)avctx->bit_rate_tolerance/avctx->bit_rate;
	260
	261	if((avctx->rc_buffer_size != 0) &&
	262	(avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)){
	263	x4->params.rc.f_vbv_buffer_init =
	264	(float)avctx->rc_initial_buffer_occupancy/avctx->rc_buffer_size;
	265	}
	266	else x4->params.rc.f_vbv_buffer_init = 0.9;
	267
	268	x4->params.rc.f_ip_factor = 1/fabs(avctx->i_quant_factor);
	269	x4->params.rc.f_pb_factor = avctx->b_quant_factor;
	270	x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
58f7833e	271
682a48a1	272	x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
58f7833e RS	273	x4->params.i_log_level = X264_LOG_DEBUG;
58f7833e RS	274
682a48a1	275	x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD;
58f7833e	276
568d4b81 MR	277	x4->params.i_threads = avctx->thread_count;
568d4b81 MR	278
d9e5c9b7 BC	279	x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
d9e5c9b7 BC	280
806011f2 MR	281	if(avctx->flags & CODEC_FLAG_GLOBAL_HEADER){
	282	x4->params.b_repeat_headers = 0;
	283	}
	284
6662ec29 MN	285	x4->enc = x264_encoder_open(&x4->params);
	286	if(!x4->enc)
	287	return -1;
	288
	289	avctx->coded_frame = &x4->out_pic;
	290
806011f2	291	if(avctx->flags & CODEC_FLAG_GLOBAL_HEADER){
4f59b684	292	x264_nal_t *nal;
2d3beede	293	int nnal, s;
806011f2	294
2d3beede	295	s = x264_encoder_headers(x4->enc, &nal, &nnal);
806011f2 MR	296
806011f2 MR	297	avctx->extradata = av_malloc(s);
fe022ce2	298	avctx->extradata_size = encode_nals(avctx, avctx->extradata, s, nal, nnal, 1);
806011f2 MR	299	}
806011f2 MR	300
6662ec29 MN	301	return 0;
	302	}
	303
1cc60c47 DB	304	AVCodec libx264_encoder = {
1cc60c47 DB	305	.name = "libx264",
6662ec29 MN	306	.type = CODEC_TYPE_VIDEO,
	307	.id = CODEC_ID_H264,
	308	.priv_data_size = sizeof(X264Context),
	309	.init = X264_init,
	310	.encode = X264_frame,
	311	.close = X264_close,
84278104	312	.capabilities = CODEC_CAP_DELAY,
2ba83017	313	.pix_fmts = (const enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_NONE },
fe4bf374	314	.long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
6662ec29	315	};