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;
74 if (unlikely(p_sys->initial_date == 0)) {
75 p_sys->initial_date = p_pict->date;
77 p_sys->start = mdate();
81 for (int i = 0; i < p_pict->i_planes; i++) {
82 pic.planes[i] = p_pict->p[i].p_pixels;
83 pic.stride[i] = p_pict->p[i].i_pitch;
89 x265_encoder_encode(p_sys->h, &nal, &i_nal,
90 likely(p_pict) ? &pic : NULL, &pic);
96 for (int i = 0; i < i_nal; i++)
97 i_out += nal[i].i_payload;
100 if (unlikely(p_sys->write_headers)) {
101 i_extra = p_enc->fmt_out.i_extra;
102 p_sys->write_headers = false;
105 block_t *p_block = block_Alloc(i_extra + i_out);
109 if (unlikely(i_extra))
110 memcpy(p_block->p_buffer, p_enc->fmt_out.p_extra, i_extra);
112 /* all payloads are sequentially laid out in memory */
113 memcpy(p_block->p_buffer + i_extra, nal[0].p_payload, i_out);
115 /* This isn't really valid for streams with B-frames */
116 p_block->i_length = CLOCK_FREQ *
117 p_enc->fmt_in.video.i_frame_rate_base /
118 p_enc->fmt_in.video.i_frame_rate;
120 p_block->i_pts = p_sys->initial_date + pic.poc * p_block->i_length;
121 p_block->i_dts = p_sys->initial_date + p_sys->dts++ * p_block->i_length;
124 msg_Dbg(p_enc, "%zu bytes (frame %"PRId64", %.2ffps)", p_block->i_buffer,
125 p_sys->dts, (float)p_sys->dts * CLOCK_FREQ / (mdate() - p_sys->start));
131 static int Open (vlc_object_t *p_this)
133 encoder_t *p_enc = (encoder_t *)p_this;
134 encoder_sys_t *p_sys;
136 if (p_enc->fmt_out.i_codec != VLC_CODEC_HEVC && !p_enc->b_force)
139 p_enc->fmt_out.i_cat = VIDEO_ES;
140 p_enc->fmt_out.i_codec = VLC_CODEC_HEVC;
141 p_enc->p_sys = p_sys = malloc(sizeof(encoder_sys_t));
145 p_enc->fmt_in.i_codec = VLC_CODEC_I420;
147 x265_param_t *param = &p_sys->param;
148 x265_param_default(param);
150 param->frameNumThreads = vlc_GetCPUCount();
151 param->bEnableWavefront = 0; // buggy in x265, use frame threading for now
152 param->maxCUSize = 16; /* use smaller macroblock */
154 param->frameRate = p_enc->fmt_in.video.i_frame_rate /
155 p_enc->fmt_in.video.i_frame_rate_base;
156 param->sourceWidth = p_enc->fmt_in.video.i_visible_width;
157 param->sourceHeight = p_enc->fmt_in.video.i_visible_height;
159 if (param->sourceWidth & (param->maxCUSize - 1)) {
160 msg_Err(p_enc, "Width (%d) must be a multiple of %d",
161 param->sourceWidth, param->maxCUSize);
165 if (param->sourceHeight & 7) {
166 msg_Err(p_enc, "Height (%d) must be a multiple of 8", param->sourceHeight);
171 if (p_enc->fmt_out.i_bitrate > 0) {
172 param->rc.bitrate = p_enc->fmt_out.i_bitrate / 1000;
173 param->rc.rateControlMode = X265_RC_ABR;
176 p_sys->h = x265_encoder_open(param);
177 if (p_sys->h == NULL) {
178 msg_Err(p_enc, "cannot open x265 encoder");
185 if (x265_encoder_headers(p_sys->h, &nal, &i_nal)) {
186 msg_Err(p_enc, "cannot get x265 headers");
187 Close(VLC_OBJECT(p_enc));
192 for (int i = 0; i < i_nal; i++)
193 i_extra += nal[i].i_payload;
195 p_enc->fmt_out.i_extra = i_extra;
197 uint8_t *p_extra = p_enc->fmt_out.p_extra = malloc(i_extra);
199 Close(VLC_OBJECT(p_enc));
203 for (int i = 0; i < i_nal; i++) {
204 memcpy(p_extra, nal[i].p_payload, nal[i].i_payload);
205 p_extra += nal[i].i_payload;
209 p_sys->initial_date = 0;
210 p_sys->i_initial_delay = 0;
211 p_sys->write_headers = true;
213 p_enc->pf_encode_video = Encode;
214 p_enc->pf_encode_audio = NULL;
219 static void Close(vlc_object_t *p_this)
221 encoder_t *p_enc = (encoder_t *)p_this;
222 encoder_sys_t *p_sys = p_enc->p_sys;
224 x265_encoder_close(p_sys->h, NULL);