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1 | /***************************************************************************** |
2 | * Copyright (C) 2013 x265 project | |
3 | * | |
4 | * Authors: Steve Borho <steve@borho.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. | |
19 | * | |
20 | * This program is also available under a commercial proprietary license. | |
21 | * For more information, contact us at license @ x265.com. | |
22 | *****************************************************************************/ | |
23 | ||
24 | #include "common.h" | |
25 | #include "bitstream.h" | |
26 | #include "param.h" | |
27 | ||
28 | #include "encoder.h" | |
29 | #include "entropy.h" | |
30 | #include "level.h" | |
31 | #include "nal.h" | |
32 | #include "bitcost.h" | |
33 | ||
34 | using namespace x265; | |
35 | ||
36 | extern "C" | |
37 | x265_encoder *x265_encoder_open(x265_param *p) | |
38 | { | |
39 | if (!p) | |
40 | return NULL; | |
41 | ||
42 | x265_param *param = X265_MALLOC(x265_param, 1); | |
43 | if (!param) | |
44 | return NULL; | |
45 | ||
46 | memcpy(param, p, sizeof(x265_param)); | |
47 | x265_log(param, X265_LOG_INFO, "HEVC encoder version %s\n", x265_version_str); | |
48 | x265_log(param, X265_LOG_INFO, "build info %s\n", x265_build_info_str); | |
49 | ||
50 | x265_setup_primitives(param, param->cpuid); | |
51 | ||
52 | if (x265_check_params(param)) | |
53 | return NULL; | |
54 | ||
55 | if (x265_set_globals(param)) | |
56 | return NULL; | |
57 | ||
58 | Encoder *encoder = new Encoder; | |
59 | if (!param->rc.bEnableSlowFirstPass) | |
60 | x265_param_apply_fastfirstpass(param); | |
61 | ||
62 | // may change params for auto-detect, etc | |
63 | encoder->configure(param); | |
64 | ||
65 | // may change rate control and CPB params | |
66 | if (!enforceLevel(*param, encoder->m_vps)) | |
67 | { | |
68 | delete encoder; | |
69 | return NULL; | |
70 | } | |
71 | ||
72 | // will detect and set profile/tier/level in VPS | |
73 | determineLevel(*param, encoder->m_vps); | |
74 | ||
75 | encoder->create(); | |
76 | encoder->init(); | |
77 | ||
78 | x265_print_params(param); | |
79 | ||
80 | return encoder; | |
81 | } | |
82 | ||
83 | extern "C" | |
84 | int x265_encoder_headers(x265_encoder *enc, x265_nal **pp_nal, uint32_t *pi_nal) | |
85 | { | |
86 | if (pp_nal && enc) | |
87 | { | |
88 | Encoder *encoder = static_cast<Encoder*>(enc); | |
89 | Entropy sbacCoder; | |
90 | Bitstream bs; | |
91 | encoder->getStreamHeaders(encoder->m_nalList, sbacCoder, bs); | |
92 | *pp_nal = &encoder->m_nalList.m_nal[0]; | |
93 | if (pi_nal) *pi_nal = encoder->m_nalList.m_numNal; | |
94 | return encoder->m_nalList.m_occupancy; | |
95 | } | |
96 | ||
97 | return -1; | |
98 | } | |
99 | ||
100 | extern "C" | |
101 | void x265_encoder_parameters(x265_encoder *enc, x265_param *out) | |
102 | { | |
103 | if (enc && out) | |
104 | { | |
105 | Encoder *encoder = static_cast<Encoder*>(enc); | |
106 | memcpy(out, encoder->m_param, sizeof(x265_param)); | |
107 | } | |
108 | } | |
109 | ||
110 | extern "C" | |
111 | int x265_encoder_encode(x265_encoder *enc, x265_nal **pp_nal, uint32_t *pi_nal, x265_picture *pic_in, x265_picture *pic_out) | |
112 | { | |
113 | if (!enc) | |
114 | return -1; | |
115 | ||
116 | Encoder *encoder = static_cast<Encoder*>(enc); | |
117 | int numEncoded; | |
118 | ||
119 | // While flushing, we cannot return 0 until the entire stream is flushed | |
120 | do | |
121 | { | |
122 | numEncoded = encoder->encode(pic_in, pic_out); | |
123 | } | |
124 | while (numEncoded == 0 && !pic_in && encoder->m_numDelayedPic); | |
125 | ||
126 | // do not allow reuse of these buffers for more than one picture. The | |
127 | // encoder now owns these analysisData buffers. | |
128 | if (pic_in) | |
129 | { | |
130 | pic_in->analysisData.intraData = NULL; | |
131 | pic_in->analysisData.interData = NULL; | |
132 | } | |
133 | ||
134 | if (pp_nal && numEncoded > 0) | |
135 | { | |
136 | *pp_nal = &encoder->m_nalList.m_nal[0]; | |
137 | if (pi_nal) *pi_nal = encoder->m_nalList.m_numNal; | |
138 | } | |
139 | else if (pi_nal) | |
140 | *pi_nal = 0; | |
141 | ||
142 | return numEncoded; | |
143 | } | |
144 | ||
145 | extern "C" | |
146 | void x265_encoder_get_stats(x265_encoder *enc, x265_stats *outputStats, uint32_t statsSizeBytes) | |
147 | { | |
148 | if (enc && outputStats) | |
149 | { | |
150 | Encoder *encoder = static_cast<Encoder*>(enc); | |
151 | encoder->fetchStats(outputStats, statsSizeBytes); | |
152 | } | |
153 | } | |
154 | ||
155 | extern "C" | |
156 | void x265_encoder_log(x265_encoder* enc, int argc, char **argv) | |
157 | { | |
158 | if (enc) | |
159 | { | |
160 | Encoder *encoder = static_cast<Encoder*>(enc); | |
161 | encoder->writeLog(argc, argv); | |
162 | } | |
163 | } | |
164 | ||
165 | extern "C" | |
166 | void x265_encoder_close(x265_encoder *enc) | |
167 | { | |
168 | if (enc) | |
169 | { | |
170 | Encoder *encoder = static_cast<Encoder*>(enc); | |
171 | ||
172 | encoder->printSummary(); | |
173 | encoder->destroy(); | |
174 | delete encoder; | |
175 | } | |
176 | } | |
177 | ||
178 | extern "C" | |
179 | void x265_cleanup(void) | |
180 | { | |
181 | destroyROM(); | |
182 | BitCost::destroy(); | |
183 | } | |
184 | ||
185 | extern "C" | |
186 | x265_picture *x265_picture_alloc() | |
187 | { | |
188 | return (x265_picture*)x265_malloc(sizeof(x265_picture)); | |
189 | } | |
190 | ||
191 | extern "C" | |
192 | void x265_picture_init(x265_param *param, x265_picture *pic) | |
193 | { | |
194 | memset(pic, 0, sizeof(x265_picture)); | |
195 | ||
196 | pic->bitDepth = param->internalBitDepth; | |
197 | pic->colorSpace = param->internalCsp; | |
198 | pic->forceqp = X265_QP_AUTO; | |
199 | if (param->analysisMode) | |
200 | { | |
201 | uint32_t numPartitions = 1 << (g_maxFullDepth * 2); | |
202 | uint32_t widthInCU = (param->sourceWidth + g_maxCUSize - 1) >> g_maxLog2CUSize; | |
203 | uint32_t heightInCU = (param->sourceHeight + g_maxCUSize - 1) >> g_maxLog2CUSize; | |
204 | ||
205 | uint32_t numCUsInFrame = widthInCU * heightInCU; | |
206 | pic->analysisData.numCUsInFrame = numCUsInFrame; | |
207 | pic->analysisData.numPartitions = numPartitions; | |
208 | } | |
209 | } | |
210 | ||
211 | extern "C" | |
212 | void x265_picture_free(x265_picture *p) | |
213 | { | |
214 | return x265_free(p); | |
215 | } | |
216 | ||
217 | int x265_alloc_analysis_data(x265_picture* pic) | |
218 | { | |
219 | CHECKED_MALLOC(pic->analysisData.interData, x265_inter_data, pic->analysisData.numCUsInFrame * 85); | |
220 | CHECKED_MALLOC(pic->analysisData.intraData, x265_intra_data, 1); | |
221 | pic->analysisData.intraData->cuAddr = NULL; | |
222 | pic->analysisData.intraData->depth = NULL; | |
223 | pic->analysisData.intraData->modes = NULL; | |
224 | pic->analysisData.intraData->partSizes = NULL; | |
225 | pic->analysisData.intraData->poc = NULL; | |
226 | CHECKED_MALLOC(pic->analysisData.intraData->depth, uint8_t, pic->analysisData.numPartitions * pic->analysisData.numCUsInFrame); | |
227 | CHECKED_MALLOC(pic->analysisData.intraData->modes, uint8_t, pic->analysisData.numPartitions * pic->analysisData.numCUsInFrame); | |
228 | CHECKED_MALLOC(pic->analysisData.intraData->partSizes, char, pic->analysisData.numPartitions * pic->analysisData.numCUsInFrame); | |
229 | CHECKED_MALLOC(pic->analysisData.intraData->cuAddr, uint32_t, pic->analysisData.numCUsInFrame); | |
230 | CHECKED_MALLOC(pic->analysisData.intraData->poc, int, pic->analysisData.numCUsInFrame); | |
231 | return 0; | |
232 | ||
233 | fail: | |
234 | x265_free_analysis_data(pic); | |
235 | return -1; | |
236 | } | |
237 | ||
238 | void x265_free_analysis_data(x265_picture* pic) | |
239 | { | |
240 | X265_FREE(pic->analysisData.interData); | |
241 | pic->analysisData.interData = NULL; | |
242 | X265_FREE(pic->analysisData.intraData->depth); | |
243 | X265_FREE(pic->analysisData.intraData->modes); | |
244 | X265_FREE(pic->analysisData.intraData->partSizes); | |
245 | X265_FREE(pic->analysisData.intraData->cuAddr); | |
246 | X265_FREE(pic->analysisData.intraData->poc); | |
247 | X265_FREE(pic->analysisData.intraData); | |
248 | pic->analysisData.intraData = NULL; | |
249 | } |