1 /*****************************************************************************
2 * x265.c: HEVC/H.265 video encoder
3 *****************************************************************************
4 * Copyright (C) 2013 Rafaël Carré
6 * Authors: Rafaël Carré <funman@videolanorg>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
30 #include <vlc_common.h>
31 #include <vlc_plugin.h>
32 #include <vlc_threads.h>
34 #include <vlc_codec.h>
38 /*****************************************************************************
40 *****************************************************************************/
41 static int Open (vlc_object_t *);
42 static void Close(vlc_object_t *);
45 set_description(N_("H.265/HEVC encoder (x265)"))
46 set_capability("encoder", 200)
47 set_callbacks(Open, Close)
48 set_category(CAT_INPUT)
49 set_subcategory(SUBCAT_INPUT_VCODEC)
59 mtime_t i_initial_delay;
68 static block_t *Encode(encoder_t *p_enc, picture_t *p_pict)
70 encoder_sys_t *p_sys = p_enc->p_sys;
73 x265_picture_init(&p_sys->param, &pic);
76 if (unlikely(p_sys->initial_date == 0)) {
77 p_sys->initial_date = p_pict->date;
79 p_sys->start = mdate();
83 for (int i = 0; i < p_pict->i_planes; i++) {
84 pic.planes[i] = p_pict->p[i].p_pixels;
85 pic.stride[i] = p_pict->p[i].i_pitch;
91 x265_encoder_encode(p_sys->h, &nal, &i_nal,
92 likely(p_pict) ? &pic : NULL, &pic);
98 for (uint32_t i = 0; i < i_nal; i++)
99 i_out += nal[i].sizeBytes;
102 if (unlikely(p_sys->write_headers)) {
103 i_extra = p_enc->fmt_out.i_extra;
104 p_sys->write_headers = false;
107 block_t *p_block = block_Alloc(i_extra + i_out);
111 if (unlikely(i_extra))
112 memcpy(p_block->p_buffer, p_enc->fmt_out.p_extra, i_extra);
114 /* all payloads are sequentially laid out in memory */
115 memcpy(p_block->p_buffer + i_extra, nal[0].payload, i_out);
117 /* This isn't really valid for streams with B-frames */
118 p_block->i_length = CLOCK_FREQ *
119 p_enc->fmt_in.video.i_frame_rate_base /
120 p_enc->fmt_in.video.i_frame_rate;
122 p_block->i_pts = p_sys->initial_date + pic.poc * p_block->i_length;
123 p_block->i_dts = p_sys->initial_date + p_sys->dts++ * p_block->i_length;
125 switch (pic.sliceType)
128 p_block->i_flags |= BLOCK_FLAG_TYPE_I;
131 p_block->i_flags |= BLOCK_FLAG_TYPE_P;
134 p_block->i_flags |= BLOCK_FLAG_TYPE_B;
139 msg_Dbg(p_enc, "%zu bytes (frame %"PRId64", %.2ffps)", p_block->i_buffer,
140 p_sys->dts, (float)p_sys->dts * CLOCK_FREQ / (mdate() - p_sys->start));
146 static int Open (vlc_object_t *p_this)
148 encoder_t *p_enc = (encoder_t *)p_this;
149 encoder_sys_t *p_sys;
151 if (p_enc->fmt_out.i_codec != VLC_CODEC_HEVC && !p_enc->b_force)
154 p_enc->fmt_out.i_cat = VIDEO_ES;
155 p_enc->fmt_out.i_codec = VLC_CODEC_HEVC;
156 p_enc->p_sys = p_sys = malloc(sizeof(encoder_sys_t));
160 p_enc->fmt_in.i_codec = VLC_CODEC_I420;
162 x265_param *param = &p_sys->param;
163 x265_param_default(param);
165 param->frameNumThreads = vlc_GetCPUCount();
166 param->bEnableWavefront = 0; // buggy in x265, use frame threading for now
167 param->maxCUSize = 16; /* use smaller macroblock */
169 param->frameRate = p_enc->fmt_in.video.i_frame_rate /
170 p_enc->fmt_in.video.i_frame_rate_base;
171 param->sourceWidth = p_enc->fmt_in.video.i_visible_width;
172 param->sourceHeight = p_enc->fmt_in.video.i_visible_height;
174 if (param->sourceWidth & (param->maxCUSize - 1)) {
175 msg_Err(p_enc, "Width (%d) must be a multiple of %d",
176 param->sourceWidth, param->maxCUSize);
180 if (param->sourceHeight & 7) {
181 msg_Err(p_enc, "Height (%d) must be a multiple of 8", param->sourceHeight);
186 if (p_enc->fmt_out.i_bitrate > 0) {
187 param->rc.bitrate = p_enc->fmt_out.i_bitrate / 1000;
188 param->rc.rateControlMode = X265_RC_ABR;
191 p_sys->h = x265_encoder_open(param);
192 if (p_sys->h == NULL) {
193 msg_Err(p_enc, "cannot open x265 encoder");
200 if (x265_encoder_headers(p_sys->h, &nal, &i_nal)) {
201 msg_Err(p_enc, "cannot get x265 headers");
202 Close(VLC_OBJECT(p_enc));
207 for (uint32_t i = 0; i < i_nal; i++)
208 i_extra += nal[i].sizeBytes;
210 p_enc->fmt_out.i_extra = i_extra;
212 uint8_t *p_extra = p_enc->fmt_out.p_extra = malloc(i_extra);
214 Close(VLC_OBJECT(p_enc));
218 for (uint32_t i = 0; i < i_nal; i++) {
219 memcpy(p_extra, nal[i].payload, nal[i].sizeBytes);
220 p_extra += nal[i].sizeBytes;
224 p_sys->initial_date = 0;
225 p_sys->i_initial_delay = 0;
226 p_sys->write_headers = true;
228 p_enc->pf_encode_video = Encode;
229 p_enc->pf_encode_audio = NULL;
234 static void Close(vlc_object_t *p_this)
236 encoder_t *p_enc = (encoder_t *)p_this;
237 encoder_sys_t *p_sys = p_enc->p_sys;
239 x265_encoder_close(p_sys->h);