Directory: | ../../../ffmpeg/ |
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File: | src/libavcodec/pnmenc.c |
Date: | 2022-07-04 00:18:54 |
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Lines: | 84 | 145 | 57.9% |
Branches: | 54 | 86 | 62.8% |
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1 | /* | ||
2 | * PNM image format | ||
3 | * Copyright (c) 2002, 2003 Fabrice Bellard | ||
4 | * | ||
5 | * This file is part of FFmpeg. | ||
6 | * | ||
7 | * FFmpeg is free software; you can redistribute it and/or | ||
8 | * modify it under the terms of the GNU Lesser General Public | ||
9 | * License as published by the Free Software Foundation; either | ||
10 | * version 2.1 of the License, or (at your option) any later version. | ||
11 | * | ||
12 | * FFmpeg is distributed in the hope that it will be useful, | ||
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 | ||
18 | * License along with FFmpeg; if not, write to the Free Software | ||
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
20 | */ | ||
21 | |||
22 | #include "config_components.h" | ||
23 | |||
24 | #include "libavutil/intreadwrite.h" | ||
25 | #include "libavutil/imgutils.h" | ||
26 | #include "libavutil/pixdesc.h" | ||
27 | #include "avcodec.h" | ||
28 | #include "codec_internal.h" | ||
29 | #include "encode.h" | ||
30 | #include "float2half.h" | ||
31 | |||
32 | typedef struct PHMEncContext { | ||
33 | uint16_t basetable[512]; | ||
34 | uint8_t shifttable[512]; | ||
35 | } PHMEncContext; | ||
36 | |||
37 | 153 | static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
38 | const AVFrame *p, int *got_packet) | ||
39 | { | ||
40 | 153 | PHMEncContext *s = avctx->priv_data; | |
41 | uint8_t *bytestream, *bytestream_start, *bytestream_end; | ||
42 | int i, h, h1, c, n, linesize, ret; | ||
43 | uint8_t *ptr, *ptr1, *ptr2; | ||
44 | 153 | int size = av_image_get_buffer_size(avctx->pix_fmt, | |
45 | avctx->width, avctx->height, 1); | ||
46 | |||
47 |
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153 | if ((ret = ff_get_encode_buffer(avctx, pkt, size + 200, 0)) < 0) |
48 | ✗ | return ret; | |
49 | |||
50 | 153 | bytestream_start = | |
51 | 153 | bytestream = pkt->data; | |
52 | 153 | bytestream_end = pkt->data + pkt->size; | |
53 | |||
54 | 153 | h = avctx->height; | |
55 | 153 | h1 = h; | |
56 |
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153 | switch (avctx->pix_fmt) { |
57 | 25 | case AV_PIX_FMT_MONOWHITE: | |
58 | 25 | c = '4'; | |
59 | 25 | n = (avctx->width + 7) >> 3; | |
60 | 25 | break; | |
61 | 38 | case AV_PIX_FMT_GRAY8: | |
62 | 38 | c = '5'; | |
63 | 38 | n = avctx->width; | |
64 | 38 | break; | |
65 | ✗ | case AV_PIX_FMT_GRAY16BE: | |
66 | ✗ | c = '5'; | |
67 | ✗ | n = avctx->width * 2; | |
68 | ✗ | break; | |
69 | 38 | case AV_PIX_FMT_RGB24: | |
70 | 38 | c = '6'; | |
71 | 38 | n = avctx->width * 3; | |
72 | 38 | break; | |
73 | ✗ | case AV_PIX_FMT_RGB48BE: | |
74 | ✗ | c = '6'; | |
75 | ✗ | n = avctx->width * 6; | |
76 | ✗ | break; | |
77 | ✗ | case AV_PIX_FMT_YUV420P: | |
78 | ✗ | if (avctx->width & 1 || avctx->height & 1) { | |
79 | ✗ | av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width and height\n"); | |
80 | ✗ | return AVERROR(EINVAL); | |
81 | } | ||
82 | ✗ | c = '5'; | |
83 | ✗ | n = avctx->width; | |
84 | ✗ | h1 = (h * 3) / 2; | |
85 | ✗ | break; | |
86 | ✗ | case AV_PIX_FMT_YUV420P16BE: | |
87 | ✗ | c = '5'; | |
88 | ✗ | n = avctx->width * 2; | |
89 | ✗ | h1 = (h * 3) / 2; | |
90 | ✗ | break; | |
91 | 26 | case AV_PIX_FMT_GBRPF32BE: | |
92 | case AV_PIX_FMT_GBRPF32LE: | ||
93 |
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26 | if (avctx->codec_id == AV_CODEC_ID_PFM) { |
94 | 26 | c = 'F'; | |
95 | 26 | n = avctx->width * 4; | |
96 | } else { | ||
97 | ✗ | c = 'H'; | |
98 | ✗ | n = avctx->width * 2; | |
99 | } | ||
100 | 26 | break; | |
101 | 26 | case AV_PIX_FMT_GRAYF32BE: | |
102 | case AV_PIX_FMT_GRAYF32LE: | ||
103 |
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26 | if (avctx->codec_id == AV_CODEC_ID_PFM) { |
104 | 26 | c = 'f'; | |
105 | 26 | n = avctx->width * 4; | |
106 | } else { | ||
107 | ✗ | c = 'h'; | |
108 | ✗ | n = avctx->width * 2; | |
109 | } | ||
110 | 26 | break; | |
111 | ✗ | default: | |
112 | ✗ | return -1; | |
113 | } | ||
114 | 153 | snprintf(bytestream, bytestream_end - bytestream, | |
115 | "P%c\n%d %d\n", c, avctx->width, h1); | ||
116 | 153 | bytestream += strlen(bytestream); | |
117 |
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153 | if (avctx->pix_fmt == AV_PIX_FMT_GBRPF32LE || |
118 |
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140 | avctx->pix_fmt == AV_PIX_FMT_GRAYF32LE || |
119 |
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127 | avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE || |
120 |
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114 | avctx->pix_fmt == AV_PIX_FMT_GRAYF32BE) |
121 | 52 | snprintf(bytestream, bytestream_end - bytestream, | |
122 |
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52 | "%f\n", (avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE || |
123 |
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39 | avctx->pix_fmt == AV_PIX_FMT_GRAYF32BE) ? 1.f: -1.f); |
124 | 153 | bytestream += strlen(bytestream); | |
125 |
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153 | if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE && |
126 |
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128 | avctx->pix_fmt != AV_PIX_FMT_GBRPF32LE && |
127 |
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115 | avctx->pix_fmt != AV_PIX_FMT_GRAYF32LE && |
128 |
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102 | avctx->pix_fmt != AV_PIX_FMT_GBRPF32BE && |
129 |
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89 | avctx->pix_fmt != AV_PIX_FMT_GRAYF32BE) { |
130 | 76 | int maxdepth = (1 << av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth) - 1; | |
131 | 76 | snprintf(bytestream, bytestream_end - bytestream, | |
132 | "%d\n", maxdepth); | ||
133 | 76 | bytestream += strlen(bytestream); | |
134 | } | ||
135 | |||
136 |
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153 | if ((avctx->pix_fmt == AV_PIX_FMT_GBRPF32LE || |
137 |
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179 | avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE) && c == 'F') { |
138 | 26 | float *r = (float *)p->data[2]; | |
139 | 26 | float *g = (float *)p->data[0]; | |
140 | 26 | float *b = (float *)p->data[1]; | |
141 | |||
142 |
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7514 | for (int i = 0; i < avctx->height; i++) { |
143 |
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2643264 | for (int j = 0; j < avctx->width; j++) { |
144 | 2635776 | AV_WN32(bytestream + 0, av_float2int(r[j])); | |
145 | 2635776 | AV_WN32(bytestream + 4, av_float2int(g[j])); | |
146 | 2635776 | AV_WN32(bytestream + 8, av_float2int(b[j])); | |
147 | 2635776 | bytestream += 12; | |
148 | } | ||
149 | |||
150 | 7488 | r += p->linesize[2] / 4; | |
151 | 7488 | g += p->linesize[0] / 4; | |
152 | 7488 | b += p->linesize[1] / 4; | |
153 | } | ||
154 |
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127 | } else if ((avctx->pix_fmt == AV_PIX_FMT_GRAYF32LE || |
155 |
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153 | avctx->pix_fmt == AV_PIX_FMT_GRAYF32BE) && c == 'f') { |
156 | 26 | const float *g = (const float *)p->data[0]; | |
157 | |||
158 |
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7514 | for (int i = 0; i < avctx->height; i++) { |
159 |
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2643264 | for (int j = 0; j < avctx->width; j++) { |
160 | 2635776 | AV_WN32(bytestream, av_float2int(g[j])); | |
161 | 2635776 | bytestream += 4; | |
162 | } | ||
163 | |||
164 | 7488 | g += p->linesize[0] / 4; | |
165 | } | ||
166 |
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101 | } else if (avctx->pix_fmt == AV_PIX_FMT_GBRPF32 && c == 'H') { |
167 | ✗ | float *r = (float *)p->data[2]; | |
168 | ✗ | float *g = (float *)p->data[0]; | |
169 | ✗ | float *b = (float *)p->data[1]; | |
170 | |||
171 | ✗ | for (int i = 0; i < avctx->height; i++) { | |
172 | ✗ | for (int j = 0; j < avctx->width; j++) { | |
173 | ✗ | AV_WN16(bytestream + 0, float2half(av_float2int(r[j]), s->basetable, s->shifttable)); | |
174 | ✗ | AV_WN16(bytestream + 2, float2half(av_float2int(g[j]), s->basetable, s->shifttable)); | |
175 | ✗ | AV_WN16(bytestream + 4, float2half(av_float2int(b[j]), s->basetable, s->shifttable)); | |
176 | ✗ | bytestream += 6; | |
177 | } | ||
178 | |||
179 | ✗ | r += p->linesize[2] / 4; | |
180 | ✗ | g += p->linesize[0] / 4; | |
181 | ✗ | b += p->linesize[1] / 4; | |
182 | } | ||
183 |
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101 | } else if (avctx->pix_fmt == AV_PIX_FMT_GRAYF32 && c == 'h') { |
184 | ✗ | const float *g = (const float *)p->data[0]; | |
185 | |||
186 | ✗ | for (int i = 0; i < avctx->height; i++) { | |
187 | ✗ | for (int j = 0; j < avctx->width; j++) { | |
188 | ✗ | AV_WN16(bytestream, float2half(av_float2int(g[j]), s->basetable, s->shifttable)); | |
189 | ✗ | bytestream += 2; | |
190 | } | ||
191 | |||
192 | ✗ | g += p->linesize[0] / 4; | |
193 | } | ||
194 | } else { | ||
195 | 101 | ptr = p->data[0]; | |
196 | 101 | linesize = p->linesize[0]; | |
197 |
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29189 | for (i = 0; i < h; i++) { |
198 | 29088 | memcpy(bytestream, ptr, n); | |
199 | 29088 | bytestream += n; | |
200 | 29088 | ptr += linesize; | |
201 | } | ||
202 | } | ||
203 | |||
204 |
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153 | if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) { |
205 | ✗ | h >>= 1; | |
206 | ✗ | n >>= 1; | |
207 | ✗ | ptr1 = p->data[1]; | |
208 | ✗ | ptr2 = p->data[2]; | |
209 | ✗ | for (i = 0; i < h; i++) { | |
210 | ✗ | memcpy(bytestream, ptr1, n); | |
211 | ✗ | bytestream += n; | |
212 | ✗ | memcpy(bytestream, ptr2, n); | |
213 | ✗ | bytestream += n; | |
214 | ✗ | ptr1 += p->linesize[1]; | |
215 | ✗ | ptr2 += p->linesize[2]; | |
216 | } | ||
217 | } | ||
218 | 153 | av_shrink_packet(pkt, bytestream - bytestream_start); | |
219 | 153 | *got_packet = 1; | |
220 | |||
221 | 153 | return 0; | |
222 | } | ||
223 | |||
224 | #if CONFIG_PGM_ENCODER | ||
225 | const FFCodec ff_pgm_encoder = { | ||
226 | .p.name = "pgm", | ||
227 | .p.long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"), | ||
228 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
229 | .p.id = AV_CODEC_ID_PGM, | ||
230 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
231 | FF_CODEC_ENCODE_CB(pnm_encode_frame), | ||
232 | .p.pix_fmts = (const enum AVPixelFormat[]){ | ||
233 | AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE | ||
234 | }, | ||
235 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, | ||
236 | }; | ||
237 | #endif | ||
238 | |||
239 | #if CONFIG_PGMYUV_ENCODER | ||
240 | const FFCodec ff_pgmyuv_encoder = { | ||
241 | .p.name = "pgmyuv", | ||
242 | .p.long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"), | ||
243 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
244 | .p.id = AV_CODEC_ID_PGMYUV, | ||
245 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
246 | FF_CODEC_ENCODE_CB(pnm_encode_frame), | ||
247 | .p.pix_fmts = (const enum AVPixelFormat[]){ | ||
248 | AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE | ||
249 | }, | ||
250 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, | ||
251 | }; | ||
252 | #endif | ||
253 | |||
254 | #if CONFIG_PPM_ENCODER | ||
255 | const FFCodec ff_ppm_encoder = { | ||
256 | .p.name = "ppm", | ||
257 | .p.long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"), | ||
258 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
259 | .p.id = AV_CODEC_ID_PPM, | ||
260 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
261 | FF_CODEC_ENCODE_CB(pnm_encode_frame), | ||
262 | .p.pix_fmts = (const enum AVPixelFormat[]){ | ||
263 | AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE | ||
264 | }, | ||
265 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, | ||
266 | }; | ||
267 | #endif | ||
268 | |||
269 | #if CONFIG_PBM_ENCODER | ||
270 | const FFCodec ff_pbm_encoder = { | ||
271 | .p.name = "pbm", | ||
272 | .p.long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"), | ||
273 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
274 | .p.id = AV_CODEC_ID_PBM, | ||
275 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
276 | FF_CODEC_ENCODE_CB(pnm_encode_frame), | ||
277 | .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE, | ||
278 | AV_PIX_FMT_NONE }, | ||
279 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, | ||
280 | }; | ||
281 | #endif | ||
282 | |||
283 | #if CONFIG_PFM_ENCODER | ||
284 | const FFCodec ff_pfm_encoder = { | ||
285 | .p.name = "pfm", | ||
286 | .p.long_name = NULL_IF_CONFIG_SMALL("PFM (Portable FloatMap) image"), | ||
287 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
288 | .p.id = AV_CODEC_ID_PFM, | ||
289 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
290 | FF_CODEC_ENCODE_CB(pnm_encode_frame), | ||
291 | .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_GBRPF32LE, | ||
292 | AV_PIX_FMT_GRAYF32LE, | ||
293 | AV_PIX_FMT_GBRPF32BE, | ||
294 | AV_PIX_FMT_GRAYF32BE, | ||
295 | AV_PIX_FMT_NONE }, | ||
296 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, | ||
297 | }; | ||
298 | #endif | ||
299 | |||
300 | #if CONFIG_PHM_ENCODER | ||
301 | ✗ | static av_cold int phm_enc_init(AVCodecContext *avctx) | |
302 | { | ||
303 | ✗ | PHMEncContext *s = avctx->priv_data; | |
304 | |||
305 | ✗ | float2half_tables(s->basetable, s->shifttable); | |
306 | |||
307 | ✗ | return 0; | |
308 | } | ||
309 | |||
310 | const FFCodec ff_phm_encoder = { | ||
311 | .p.name = "phm", | ||
312 | .p.long_name = NULL_IF_CONFIG_SMALL("PHM (Portable HalfFloatMap) image"), | ||
313 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
314 | .p.id = AV_CODEC_ID_PHM, | ||
315 | .p.capabilities = AV_CODEC_CAP_DR1, | ||
316 | .priv_data_size = sizeof(PHMEncContext), | ||
317 | .init = phm_enc_init, | ||
318 | FF_CODEC_ENCODE_CB(pnm_encode_frame), | ||
319 | .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_GBRPF32, | ||
320 | AV_PIX_FMT_GRAYF32, | ||
321 | AV_PIX_FMT_NONE }, | ||
322 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, | ||
323 | }; | ||
324 | #endif | ||
325 |