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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(); | |
b53f7c52 JB |
76 | if (encoder->m_aborted) |
77 | { | |
78 | delete encoder; | |
79 | return NULL; | |
80 | } | |
72b9787e JB |
81 | |
82 | x265_print_params(param); | |
83 | ||
84 | return encoder; | |
85 | } | |
86 | ||
87 | extern "C" | |
88 | int x265_encoder_headers(x265_encoder *enc, x265_nal **pp_nal, uint32_t *pi_nal) | |
89 | { | |
90 | if (pp_nal && enc) | |
91 | { | |
92 | Encoder *encoder = static_cast<Encoder*>(enc); | |
93 | Entropy sbacCoder; | |
94 | Bitstream bs; | |
95 | encoder->getStreamHeaders(encoder->m_nalList, sbacCoder, bs); | |
96 | *pp_nal = &encoder->m_nalList.m_nal[0]; | |
97 | if (pi_nal) *pi_nal = encoder->m_nalList.m_numNal; | |
98 | return encoder->m_nalList.m_occupancy; | |
99 | } | |
100 | ||
101 | return -1; | |
102 | } | |
103 | ||
104 | extern "C" | |
105 | void x265_encoder_parameters(x265_encoder *enc, x265_param *out) | |
106 | { | |
107 | if (enc && out) | |
108 | { | |
109 | Encoder *encoder = static_cast<Encoder*>(enc); | |
110 | memcpy(out, encoder->m_param, sizeof(x265_param)); | |
111 | } | |
112 | } | |
113 | ||
114 | extern "C" | |
115 | int x265_encoder_encode(x265_encoder *enc, x265_nal **pp_nal, uint32_t *pi_nal, x265_picture *pic_in, x265_picture *pic_out) | |
116 | { | |
117 | if (!enc) | |
118 | return -1; | |
119 | ||
120 | Encoder *encoder = static_cast<Encoder*>(enc); | |
121 | int numEncoded; | |
122 | ||
123 | // While flushing, we cannot return 0 until the entire stream is flushed | |
124 | do | |
125 | { | |
126 | numEncoded = encoder->encode(pic_in, pic_out); | |
127 | } | |
128 | while (numEncoded == 0 && !pic_in && encoder->m_numDelayedPic); | |
129 | ||
130 | // do not allow reuse of these buffers for more than one picture. The | |
131 | // encoder now owns these analysisData buffers. | |
132 | if (pic_in) | |
133 | { | |
134 | pic_in->analysisData.intraData = NULL; | |
135 | pic_in->analysisData.interData = NULL; | |
136 | } | |
137 | ||
138 | if (pp_nal && numEncoded > 0) | |
139 | { | |
140 | *pp_nal = &encoder->m_nalList.m_nal[0]; | |
141 | if (pi_nal) *pi_nal = encoder->m_nalList.m_numNal; | |
142 | } | |
143 | else if (pi_nal) | |
144 | *pi_nal = 0; | |
145 | ||
146 | return numEncoded; | |
147 | } | |
148 | ||
149 | extern "C" | |
150 | void x265_encoder_get_stats(x265_encoder *enc, x265_stats *outputStats, uint32_t statsSizeBytes) | |
151 | { | |
152 | if (enc && outputStats) | |
153 | { | |
154 | Encoder *encoder = static_cast<Encoder*>(enc); | |
155 | encoder->fetchStats(outputStats, statsSizeBytes); | |
156 | } | |
157 | } | |
158 | ||
159 | extern "C" | |
160 | void x265_encoder_log(x265_encoder* enc, int argc, char **argv) | |
161 | { | |
162 | if (enc) | |
163 | { | |
164 | Encoder *encoder = static_cast<Encoder*>(enc); | |
165 | encoder->writeLog(argc, argv); | |
166 | } | |
167 | } | |
168 | ||
169 | extern "C" | |
170 | void x265_encoder_close(x265_encoder *enc) | |
171 | { | |
172 | if (enc) | |
173 | { | |
174 | Encoder *encoder = static_cast<Encoder*>(enc); | |
175 | ||
176 | encoder->printSummary(); | |
177 | encoder->destroy(); | |
178 | delete encoder; | |
179 | } | |
180 | } | |
181 | ||
182 | extern "C" | |
183 | void x265_cleanup(void) | |
184 | { | |
72b9787e JB |
185 | BitCost::destroy(); |
186 | } | |
187 | ||
188 | extern "C" | |
189 | x265_picture *x265_picture_alloc() | |
190 | { | |
191 | return (x265_picture*)x265_malloc(sizeof(x265_picture)); | |
192 | } | |
193 | ||
194 | extern "C" | |
195 | void x265_picture_init(x265_param *param, x265_picture *pic) | |
196 | { | |
197 | memset(pic, 0, sizeof(x265_picture)); | |
198 | ||
199 | pic->bitDepth = param->internalBitDepth; | |
200 | pic->colorSpace = param->internalCsp; | |
201 | pic->forceqp = X265_QP_AUTO; | |
202 | if (param->analysisMode) | |
203 | { | |
72b9787e JB |
204 | uint32_t widthInCU = (param->sourceWidth + g_maxCUSize - 1) >> g_maxLog2CUSize; |
205 | uint32_t heightInCU = (param->sourceHeight + g_maxCUSize - 1) >> g_maxLog2CUSize; | |
206 | ||
207 | uint32_t numCUsInFrame = widthInCU * heightInCU; | |
208 | pic->analysisData.numCUsInFrame = numCUsInFrame; | |
b53f7c52 | 209 | pic->analysisData.numPartitions = NUM_CU_PARTITIONS; |
72b9787e JB |
210 | } |
211 | } | |
212 | ||
213 | extern "C" | |
214 | void x265_picture_free(x265_picture *p) | |
215 | { | |
216 | return x265_free(p); | |
217 | } |