Use more portable 'PRId64' instead of 'llx' as conversion/length specifier.
[libav.git] / libavcodec / libx264.c
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1/*
2 * H.264 encoding using the x264 library
f2250162 3 * Copyright (C) 2005 Mans Rullgard <mans@mansr.com>
6662ec29 4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public
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,
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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
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20 */
21
22#include "avcodec.h"
23#include <x264.h>
337afd14 24#include <math.h>
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25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
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28
29typedef struct X264Context {
30 x264_param_t params;
31 x264_t *enc;
32 x264_picture_t pic;
33 AVFrame out_pic;
34} X264Context;
35
36static void
37X264_log(void *p, int level, const char *fmt, va_list args)
38{
39 static const int level_map[] = {
bb270c08 40 [X264_LOG_ERROR] = AV_LOG_ERROR,
3709f0d7 41 [X264_LOG_WARNING] = AV_LOG_WARNING,
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42 [X264_LOG_INFO] = AV_LOG_INFO,
43 [X264_LOG_DEBUG] = AV_LOG_DEBUG
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44 };
45
46 if(level < 0 || level > X264_LOG_DEBUG)
bb270c08 47 return;
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48
49 av_vlog(p, level_map[level], fmt, args);
50}
51
52
53static int
f40487c2 54encode_nals(uint8_t *buf, int size, x264_nal_t *nals, int nnal)
6662ec29 55{
f40487c2 56 uint8_t *p = buf;
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57 int i;
58
59 for(i = 0; i < nnal; i++){
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60 int s = x264_nal_encode(p, &size, 1, nals + i);
61 if(s < 0)
62 return -1;
63 p += s;
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64 }
65
66 return p - buf;
67}
68
c328f313 69static int
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70X264_frame(AVCodecContext *ctx, uint8_t *buf, int bufsize, void *data)
71{
72 X264Context *x4 = ctx->priv_data;
73 AVFrame *frame = data;
74 x264_nal_t *nal;
75 int nnal, i;
76 x264_picture_t pic_out;
77
78 x4->pic.img.i_csp = X264_CSP_I420;
79 x4->pic.img.i_plane = 3;
80
84278104 81 if (frame) {
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82 for(i = 0; i < 3; i++){
83 x4->pic.img.plane[i] = frame->data[i];
84 x4->pic.img.i_stride[i] = frame->linesize[i];
85 }
6662ec29 86
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87 x4->pic.i_pts = frame->pts;
88 x4->pic.i_type = X264_TYPE_AUTO;
84278104 89 }
6662ec29 90
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91 if(x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL,
92 &pic_out))
bb270c08 93 return -1;
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94
95 bufsize = encode_nals(buf, bufsize, nal, nnal);
96 if(bufsize < 0)
bb270c08 97 return -1;
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98
99 /* FIXME: dts */
100 x4->out_pic.pts = pic_out.i_pts;
101
102 switch(pic_out.i_type){
103 case X264_TYPE_IDR:
104 case X264_TYPE_I:
105 x4->out_pic.pict_type = FF_I_TYPE;
106 break;
107 case X264_TYPE_P:
108 x4->out_pic.pict_type = FF_P_TYPE;
109 break;
110 case X264_TYPE_B:
111 case X264_TYPE_BREF:
112 x4->out_pic.pict_type = FF_B_TYPE;
113 break;
114 }
115
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116 x4->out_pic.key_frame = pic_out.i_type == X264_TYPE_IDR;
117 x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
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118
119 return bufsize;
120}
121
98a6fff9 122static av_cold int
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123X264_close(AVCodecContext *avctx)
124{
125 X264Context *x4 = avctx->priv_data;
126
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127 av_freep(&avctx->extradata);
128
6662ec29 129 if(x4->enc)
bb270c08 130 x264_encoder_close(x4->enc);
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131
132 return 0;
133}
134
98a6fff9 135static av_cold int
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136X264_init(AVCodecContext *avctx)
137{
138 X264Context *x4 = avctx->priv_data;
139
140 x264_param_default(&x4->params);
141
142 x4->params.pf_log = X264_log;
143 x4->params.p_log_private = avctx;
144
145 x4->params.i_keyint_max = avctx->gop_size;
146 x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
3f9d3777 147 x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
18ae520b 148 x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
682a48a1 149 x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
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150 if(avctx->flags & CODEC_FLAG_PASS2) x4->params.rc.b_stat_read = 1;
151 else{
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152 if(avctx->crf){
153 x4->params.rc.i_rc_method = X264_RC_CRF;
9f1c1c99 154 x4->params.rc.f_rf_constant = avctx->crf;
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155 }else if(avctx->cqp > -1){
156 x4->params.rc.i_rc_method = X264_RC_CQP;
157 x4->params.rc.i_qp_constant = avctx->cqp;
158 }
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159 }
160
161 // if neither crf nor cqp modes are selected we have to enable the RC
162 // we do it this way because we cannot check if the bitrate has been set
8b75e45d 163 if(!(avctx->crf || (avctx->cqp > -1))) x4->params.rc.i_rc_method = X264_RC_ABR;
58f7833e 164
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165 x4->params.i_bframe = avctx->max_b_frames;
166 x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
0bc4c436 167 x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
58f7833e 168 x4->params.i_bframe_bias = avctx->bframebias;
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169 x4->params.b_bframe_pyramid = avctx->flags2 & CODEC_FLAG2_BPYRAMID;
170 avctx->has_b_frames= avctx->flags2 & CODEC_FLAG2_BPYRAMID ? 2 : !!avctx->max_b_frames;
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171
172 x4->params.i_keyint_min = avctx->keyint_min;
173 if(x4->params.i_keyint_min > x4->params.i_keyint_max)
174 x4->params.i_keyint_min = x4->params.i_keyint_max;
175
176 x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
177
682a48a1 178 x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
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179 x4->params.i_deblocking_filter_alphac0 = avctx->deblockalpha;
180 x4->params.i_deblocking_filter_beta = avctx->deblockbeta;
f9791751 181
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182 x4->params.rc.i_qp_min = avctx->qmin;
183 x4->params.rc.i_qp_max = avctx->qmax;
184 x4->params.rc.i_qp_step = avctx->max_qdiff;
185
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186 x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
187 x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
58f7833e 188 x4->params.rc.f_complexity_blur = avctx->complexityblur;
18ae520b 189
58f7833e 190 x4->params.i_frame_reference = avctx->refs;
68c6d60f 191
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192 x4->params.i_width = avctx->width;
193 x4->params.i_height = avctx->height;
194 x4->params.vui.i_sar_width = avctx->sample_aspect_ratio.num;
195 x4->params.vui.i_sar_height = avctx->sample_aspect_ratio.den;
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196 x4->params.i_fps_num = avctx->time_base.den;
197 x4->params.i_fps_den = avctx->time_base.num;
6662ec29 198
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199 x4->params.analyse.inter = 0;
200 if(avctx->partitions){
201 if(avctx->partitions & X264_PART_I4X4)
202 x4->params.analyse.inter |= X264_ANALYSE_I4x4;
203 if(avctx->partitions & X264_PART_I8X8)
204 x4->params.analyse.inter |= X264_ANALYSE_I8x8;
205 if(avctx->partitions & X264_PART_P8X8)
206 x4->params.analyse.inter |= X264_ANALYSE_PSUB16x16;
207 if(avctx->partitions & X264_PART_P4X4)
208 x4->params.analyse.inter |= X264_ANALYSE_PSUB8x8;
209 if(avctx->partitions & X264_PART_B8X8)
210 x4->params.analyse.inter |= X264_ANALYSE_BSUB16x16;
211 }
212
213 x4->params.analyse.i_direct_mv_pred = avctx->directpred;
214
682a48a1 215 x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED;
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216
217 if(avctx->me_method == ME_EPZS)
218 x4->params.analyse.i_me_method = X264_ME_DIA;
219 else if(avctx->me_method == ME_HEX)
220 x4->params.analyse.i_me_method = X264_ME_HEX;
221 else if(avctx->me_method == ME_UMH)
222 x4->params.analyse.i_me_method = X264_ME_UMH;
223 else if(avctx->me_method == ME_FULL)
224 x4->params.analyse.i_me_method = X264_ME_ESA;
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225 else if(avctx->me_method == ME_TESA)
226 x4->params.analyse.i_me_method = X264_ME_TESA;
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227 else x4->params.analyse.i_me_method = X264_ME_HEX;
228
229 x4->params.analyse.i_me_range = avctx->me_range;
230 x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
231
58f7833e 232 x4->params.analyse.b_mixed_references =
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233 avctx->flags2 & CODEC_FLAG2_MIXED_REFS;
234 x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
235 x4->params.analyse.b_transform_8x8 = avctx->flags2 & CODEC_FLAG2_8X8DCT;
236 x4->params.analyse.b_fast_pskip = avctx->flags2 & CODEC_FLAG2_FASTPSKIP;
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237
238 x4->params.analyse.i_trellis = avctx->trellis;
277fe229 239 x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
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240
241 if(avctx->level > 0) x4->params.i_level_idc = avctx->level;
242
4f59b684 243 x4->params.rc.f_rate_tolerance =
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244 (float)avctx->bit_rate_tolerance/avctx->bit_rate;
245
246 if((avctx->rc_buffer_size != 0) &&
247 (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)){
248 x4->params.rc.f_vbv_buffer_init =
249 (float)avctx->rc_initial_buffer_occupancy/avctx->rc_buffer_size;
250 }
251 else x4->params.rc.f_vbv_buffer_init = 0.9;
252
253 x4->params.rc.f_ip_factor = 1/fabs(avctx->i_quant_factor);
254 x4->params.rc.f_pb_factor = avctx->b_quant_factor;
255 x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
58f7833e 256
682a48a1 257 x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
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258 x4->params.i_log_level = X264_LOG_DEBUG;
259
682a48a1 260 x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD;
58f7833e 261
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262 x4->params.i_threads = avctx->thread_count;
263
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264 x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
265
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266 if(avctx->flags & CODEC_FLAG_GLOBAL_HEADER){
267 x4->params.b_repeat_headers = 0;
268 }
269
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270 x4->enc = x264_encoder_open(&x4->params);
271 if(!x4->enc)
272 return -1;
273
274 avctx->coded_frame = &x4->out_pic;
275
806011f2 276 if(avctx->flags & CODEC_FLAG_GLOBAL_HEADER){
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277 x264_nal_t *nal;
278 int nnal, i, s = 0;
806011f2 279
4f59b684 280 x264_encoder_headers(x4->enc, &nal, &nnal);
806011f2 281
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282 /* 5 bytes NAL header + worst case escaping */
283 for(i = 0; i < nnal; i++)
284 s += 5 + nal[i].i_payload * 4 / 3;
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285
286 avctx->extradata = av_malloc(s);
287 avctx->extradata_size = encode_nals(avctx->extradata, s, nal, nnal);
288 }
289
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290 return 0;
291}
292
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293AVCodec libx264_encoder = {
294 .name = "libx264",
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295 .type = CODEC_TYPE_VIDEO,
296 .id = CODEC_ID_H264,
297 .priv_data_size = sizeof(X264Context),
298 .init = X264_init,
299 .encode = X264_frame,
300 .close = X264_close,
84278104 301 .capabilities = CODEC_CAP_DELAY,
eacced45 302 .pix_fmts = (enum PixelFormat[]) { PIX_FMT_YUV420P, PIX_FMT_NONE },
fe4bf374 303 .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
6662ec29 304};