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1 | /* | ||
2 | * Phantom Cine demuxer | ||
3 | * Copyright (c) 2010-2011 Peter Ross <pross@xvid.org> | ||
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 | /** | ||
23 | * @file | ||
24 | * Phantom Cine demuxer | ||
25 | * @author Peter Ross <pross@xvid.org> | ||
26 | */ | ||
27 | |||
28 | #include "libavutil/intreadwrite.h" | ||
29 | #include "libavutil/mem.h" | ||
30 | #include "libavcodec/bmp.h" | ||
31 | #include "libavutil/intfloat.h" | ||
32 | #include "avformat.h" | ||
33 | #include "demux.h" | ||
34 | #include "internal.h" | ||
35 | |||
36 | typedef struct { | ||
37 | uint64_t pts; | ||
38 | uint64_t maxsize; | ||
39 | } CineDemuxContext; | ||
40 | |||
41 | /** Compression */ | ||
42 | enum { | ||
43 | CC_RGB = 0, /**< Gray */ | ||
44 | CC_LEAD = 1, /**< LEAD (M)JPEG */ | ||
45 | CC_UNINT = 2 /**< Uninterpolated color image (CFA field indicates color ordering) */ | ||
46 | }; | ||
47 | |||
48 | /** Color Filter Array */ | ||
49 | enum { | ||
50 | CFA_NONE = 0, /**< GRAY */ | ||
51 | CFA_VRI = 1, /**< GBRG/RGGB */ | ||
52 | CFA_VRIV6 = 2, /**< BGGR/GRBG */ | ||
53 | CFA_BAYER = 3, /**< GB/RG */ | ||
54 | CFA_BAYERFLIP = 4, /**< RG/GB */ | ||
55 | CFA_BAYERFLIPB = 5, /**< GR/BG */ | ||
56 | CFA_BAYERFLIPH = 6, /**< BG/GR */ | ||
57 | }; | ||
58 | |||
59 | #define CFA_TLGRAY 0x80000000U | ||
60 | #define CFA_TRGRAY 0x40000000U | ||
61 | #define CFA_BLGRAY 0x20000000U | ||
62 | #define CFA_BRGRAY 0x10000000U | ||
63 | |||
64 | 7235 | static int cine_read_probe(const AVProbeData *p) | |
65 | { | ||
66 | int HeaderSize; | ||
67 |
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7235 | if (p->buf[0] == 'C' && p->buf[1] == 'I' && // Type |
68 |
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1 | (HeaderSize = AV_RL16(p->buf + 2)) >= 0x2C && // HeaderSize |
69 |
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1 | AV_RL16(p->buf + 4) <= CC_UNINT && // Compression |
70 |
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1 | AV_RL16(p->buf + 6) <= 1 && // Version |
71 |
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1 | AV_RL32(p->buf + 20) && // ImageCount |
72 |
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1 | AV_RL32(p->buf + 24) >= HeaderSize && // OffImageHeader |
73 |
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1 | AV_RL32(p->buf + 28) >= HeaderSize && // OffSetup |
74 |
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1 | AV_RL32(p->buf + 32) >= HeaderSize) // OffImageOffsets |
75 | 1 | return AVPROBE_SCORE_MAX; | |
76 | 7234 | return 0; | |
77 | } | ||
78 | |||
79 | 13 | static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero) | |
80 | { | ||
81 |
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13 | if (value || allow_zero) { |
82 | 13 | return av_dict_set_int(dict, key, value, 0); | |
83 | } | ||
84 | ✗ | return 0; | |
85 | } | ||
86 | |||
87 | 2 | static int set_metadata_float(AVDictionary **dict, const char *key, float value, int allow_zero) | |
88 | { | ||
89 |
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2 | if (value != 0 || allow_zero) { |
90 | char tmp[64]; | ||
91 | 2 | snprintf(tmp, sizeof(tmp), "%f", value); | |
92 | 2 | return av_dict_set(dict, key, tmp, 0); | |
93 | } | ||
94 | ✗ | return 0; | |
95 | } | ||
96 | |||
97 | 1 | static int cine_read_header(AVFormatContext *avctx) | |
98 | { | ||
99 | 1 | AVIOContext *pb = avctx->pb; | |
100 | AVStream *st; | ||
101 | unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA; | ||
102 | int vflip; | ||
103 | char *description; | ||
104 | uint64_t i; | ||
105 | |||
106 | 1 | st = avformat_new_stream(avctx, NULL); | |
107 |
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1 | if (!st) |
108 | ✗ | return AVERROR(ENOMEM); | |
109 | 1 | st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; | |
110 | 1 | st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO; | |
111 | 1 | st->codecpar->codec_tag = 0; | |
112 | |||
113 | /* CINEFILEHEADER structure */ | ||
114 | 1 | avio_skip(pb, 4); // Type, Headersize | |
115 | |||
116 | 1 | compression = avio_rl16(pb); | |
117 | 1 | version = avio_rl16(pb); | |
118 |
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1 | if (version != 1) { |
119 | ✗ | avpriv_request_sample(avctx, "unknown version %i", version); | |
120 | ✗ | return AVERROR_INVALIDDATA; | |
121 | } | ||
122 | |||
123 | 1 | avio_skip(pb, 12); // FirstMovieImage, TotalImageCount, FirstImageNumber | |
124 | |||
125 | 1 | st->duration = avio_rl32(pb); | |
126 | 1 | offImageHeader = avio_rl32(pb); | |
127 | 1 | offSetup = avio_rl32(pb); | |
128 | 1 | offImageOffsets = avio_rl32(pb); | |
129 | |||
130 | 1 | avio_skip(pb, 8); // TriggerTime | |
131 | |||
132 | /* BITMAPINFOHEADER structure */ | ||
133 | 1 | avio_seek(pb, offImageHeader, SEEK_SET); | |
134 | 1 | avio_skip(pb, 4); //biSize | |
135 | 1 | st->codecpar->width = avio_rl32(pb); | |
136 | 1 | st->codecpar->height = avio_rl32(pb); | |
137 | |||
138 |
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1 | if (avio_rl16(pb) != 1) // biPlanes |
139 | ✗ | return AVERROR_INVALIDDATA; | |
140 | |||
141 | 1 | biBitCount = avio_rl16(pb); | |
142 |
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1 | if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48) { |
143 | ✗ | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
144 | ✗ | return AVERROR_INVALIDDATA; | |
145 | } | ||
146 | |||
147 |
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1 | switch (avio_rl32(pb)) { |
148 | 1 | case BMP_RGB: | |
149 | 1 | vflip = 0; | |
150 | 1 | break; | |
151 | ✗ | case 0x100: /* BI_PACKED */ | |
152 | ✗ | st->codecpar->codec_tag = MKTAG('B', 'I', 'T', 0); | |
153 | ✗ | vflip = 1; | |
154 | ✗ | break; | |
155 | ✗ | default: | |
156 | ✗ | avpriv_request_sample(avctx, "unknown bitmap compression"); | |
157 | ✗ | return AVERROR_INVALIDDATA; | |
158 | } | ||
159 | |||
160 | 1 | avio_skip(pb, 4); // biSizeImage | |
161 | |||
162 | /* parse SETUP structure */ | ||
163 | 1 | avio_seek(pb, offSetup, SEEK_SET); | |
164 | 1 | avio_skip(pb, 140); // FrameRatae16 .. descriptionOld | |
165 |
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1 | if (avio_rl16(pb) != 0x5453) |
166 | ✗ | return AVERROR_INVALIDDATA; | |
167 | 1 | length = avio_rl16(pb); | |
168 |
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1 | if (length < 0x163C) { |
169 | ✗ | avpriv_request_sample(avctx, "short SETUP header"); | |
170 | ✗ | return AVERROR_INVALIDDATA; | |
171 | } | ||
172 | |||
173 | 1 | avio_skip(pb, 616); // Binning .. bFlipH | |
174 |
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1 | if (!avio_rl32(pb) ^ vflip) { |
175 | 1 | st->codecpar->extradata = av_strdup("BottomUp"); | |
176 |
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1 | if (!st->codecpar->extradata) { |
177 | ✗ | st->codecpar->extradata_size = 0; | |
178 | ✗ | return AVERROR(ENOMEM); | |
179 | } | ||
180 | 1 | st->codecpar->extradata_size = 9; | |
181 | } | ||
182 | |||
183 | 1 | avio_skip(pb, 4); // Grid | |
184 | |||
185 | 1 | avpriv_set_pts_info(st, 64, 1, avio_rl32(pb)); | |
186 | |||
187 | 1 | avio_skip(pb, 20); // Shutter .. bEnableColor | |
188 | |||
189 | 1 | set_metadata_int(&st->metadata, "camera_version", avio_rl32(pb), 0); | |
190 | 1 | set_metadata_int(&st->metadata, "firmware_version", avio_rl32(pb), 0); | |
191 | 1 | set_metadata_int(&st->metadata, "software_version", avio_rl32(pb), 0); | |
192 | 1 | set_metadata_int(&st->metadata, "recording_timezone", avio_rl32(pb), 0); | |
193 | |||
194 | 1 | CFA = avio_rl32(pb); | |
195 | |||
196 | 1 | set_metadata_int(&st->metadata, "brightness", avio_rl32(pb), 1); | |
197 | 1 | set_metadata_int(&st->metadata, "contrast", avio_rl32(pb), 1); | |
198 | 1 | set_metadata_int(&st->metadata, "gamma", avio_rl32(pb), 1); | |
199 | |||
200 | 1 | avio_skip(pb, 12 + 16); // Reserved1 .. AutoExpRect | |
201 | 1 | set_metadata_float(&st->metadata, "wbgain[0].r", av_int2float(avio_rl32(pb)), 1); | |
202 | 1 | set_metadata_float(&st->metadata, "wbgain[0].b", av_int2float(avio_rl32(pb)), 1); | |
203 | 1 | avio_skip(pb, 36); // WBGain[1].. WBView | |
204 | |||
205 | 1 | st->codecpar->bits_per_coded_sample = avio_rl32(pb); | |
206 | |||
207 |
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1 | if (compression == CC_RGB) { |
208 | ✗ | if (biBitCount == 8) { | |
209 | ✗ | st->codecpar->format = AV_PIX_FMT_GRAY8; | |
210 | ✗ | } else if (biBitCount == 16) { | |
211 | ✗ | st->codecpar->format = AV_PIX_FMT_GRAY16LE; | |
212 | ✗ | } else if (biBitCount == 24) { | |
213 | ✗ | st->codecpar->format = AV_PIX_FMT_BGR24; | |
214 | ✗ | } else if (biBitCount == 48) { | |
215 | ✗ | st->codecpar->format = AV_PIX_FMT_BGR48LE; | |
216 | } else { | ||
217 | ✗ | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
218 | ✗ | return AVERROR_INVALIDDATA; | |
219 | } | ||
220 |
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1 | } else if (compression == CC_UNINT) { |
221 |
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1 | switch (CFA & 0xFFFFFF) { |
222 | 1 | case CFA_BAYER: | |
223 |
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1 | if (biBitCount == 8) { |
224 | 1 | st->codecpar->format = AV_PIX_FMT_BAYER_GBRG8; | |
225 | ✗ | } else if (biBitCount == 16) { | |
226 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_GBRG16LE; | |
227 | } else { | ||
228 | ✗ | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
229 | ✗ | return AVERROR_INVALIDDATA; | |
230 | } | ||
231 | 1 | break; | |
232 | ✗ | case CFA_BAYERFLIP: | |
233 | ✗ | if (biBitCount == 8) { | |
234 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_RGGB8; | |
235 | ✗ | } else if (biBitCount == 16) { | |
236 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_RGGB16LE; | |
237 | } else { | ||
238 | ✗ | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
239 | ✗ | return AVERROR_INVALIDDATA; | |
240 | } | ||
241 | ✗ | break; | |
242 | ✗ | case CFA_BAYERFLIPB: | |
243 | ✗ | if (biBitCount == 8) { | |
244 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_GRBG8; | |
245 | ✗ | } else if (biBitCount == 16) { | |
246 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_GRBG16LE; | |
247 | } else { | ||
248 | ✗ | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
249 | ✗ | return AVERROR_INVALIDDATA; | |
250 | } | ||
251 | ✗ | break; | |
252 | ✗ | case CFA_BAYERFLIPH: | |
253 | ✗ | if (biBitCount == 8) { | |
254 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_BGGR8; | |
255 | ✗ | } else if (biBitCount == 16) { | |
256 | ✗ | st->codecpar->format = AV_PIX_FMT_BAYER_BGGR16LE; | |
257 | } else { | ||
258 | ✗ | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
259 | ✗ | return AVERROR_INVALIDDATA; | |
260 | } | ||
261 | ✗ | break; | |
262 | ✗ | default: | |
263 | ✗ | avpriv_request_sample(avctx, "unsupported Color Field Array (CFA) %i", CFA & 0xFFFFFF); | |
264 | ✗ | return AVERROR_INVALIDDATA; | |
265 | } | ||
266 | } else { //CC_LEAD | ||
267 | ✗ | avpriv_request_sample(avctx, "unsupported compression %i", compression); | |
268 | ✗ | return AVERROR_INVALIDDATA; | |
269 | } | ||
270 | |||
271 | 1 | avio_skip(pb, 668); // Conv8Min ... Sensor | |
272 | |||
273 | 1 | set_metadata_int(&st->metadata, "shutter_ns", avio_rl32(pb), 0); | |
274 | |||
275 | 1 | avio_skip(pb, 24); // EDRShutterNs ... ImHeightAcq | |
276 | |||
277 | #define DESCRIPTION_SIZE 4096 | ||
278 | 1 | description = av_malloc(DESCRIPTION_SIZE + 1); | |
279 |
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1 | if (!description) |
280 | ✗ | return AVERROR(ENOMEM); | |
281 | 1 | i = avio_get_str(pb, DESCRIPTION_SIZE, description, DESCRIPTION_SIZE + 1); | |
282 |
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1 | if (i < DESCRIPTION_SIZE) |
283 | 1 | avio_skip(pb, DESCRIPTION_SIZE - i); | |
284 |
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1 | if (description[0]) |
285 | ✗ | av_dict_set(&st->metadata, "description", description, AV_DICT_DONT_STRDUP_VAL); | |
286 | else | ||
287 | 1 | av_free(description); | |
288 | |||
289 | 1 | avio_skip(pb, 1176); // RisingEdge ... cmUser | |
290 | |||
291 | 1 | set_metadata_int(&st->metadata, "enable_crop", avio_rl32(pb), 1); | |
292 | 1 | set_metadata_int(&st->metadata, "crop_left", avio_rl32(pb), 1); | |
293 | 1 | set_metadata_int(&st->metadata, "crop_top", avio_rl32(pb), 1); | |
294 | 1 | set_metadata_int(&st->metadata, "crop_right", avio_rl32(pb), 1); | |
295 | 1 | set_metadata_int(&st->metadata, "crop_bottom", avio_rl32(pb), 1); | |
296 | |||
297 | /* parse image offsets */ | ||
298 | 1 | avio_seek(pb, offImageOffsets, SEEK_SET); | |
299 |
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101 | for (i = 0; i < st->duration; i++) { |
300 | 100 | int64_t pos = avio_rl64(pb); | |
301 |
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100 | if (avio_feof(pb) || pos < 0) |
302 | ✗ | return AVERROR_INVALIDDATA; | |
303 | |||
304 | 100 | av_add_index_entry(st, pos, i, 0, 0, AVINDEX_KEYFRAME); | |
305 | } | ||
306 | |||
307 | 1 | return 0; | |
308 | } | ||
309 | |||
310 | 4 | static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt) | |
311 | { | ||
312 | 4 | CineDemuxContext *cine = avctx->priv_data; | |
313 | 4 | AVStream *st = avctx->streams[0]; | |
314 | 4 | FFStream *const sti = ffstream(st); | |
315 | 4 | AVIOContext *pb = avctx->pb; | |
316 | int n, size, ret; | ||
317 | int64_t ret64; | ||
318 | |||
319 |
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4 | if (cine->pts >= sti->nb_index_entries) |
320 | ✗ | return AVERROR_EOF; | |
321 | |||
322 | 4 | ret64 = avio_seek(pb, sti->index_entries[cine->pts].pos, SEEK_SET); | |
323 |
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4 | if (ret64 < 0) |
324 | ✗ | return ret64; | |
325 | 4 | n = avio_rl32(pb); | |
326 |
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4 | if (n < 8) |
327 | 2 | return AVERROR_INVALIDDATA; | |
328 | 2 | avio_skip(pb, n - 8); | |
329 | 2 | size = avio_rl32(pb); | |
330 |
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2 | if (avio_feof(pb) || size < 0) |
331 | ✗ | return AVERROR_INVALIDDATA; | |
332 | |||
333 |
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2 | if (cine->maxsize && (uint64_t)sti->index_entries[cine->pts].pos + size + n > cine->maxsize) |
334 | ✗ | size = cine->maxsize - sti->index_entries[cine->pts].pos - n; | |
335 | |||
336 | 2 | ret = av_get_packet(pb, pkt, size); | |
337 |
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2 | if (ret < 0) |
338 | ✗ | return ret; | |
339 | |||
340 |
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2 | if (ret != size) |
341 | 1 | cine->maxsize = (uint64_t)sti->index_entries[cine->pts].pos + n + ret; | |
342 | |||
343 | 2 | pkt->pts = cine->pts++; | |
344 | 2 | pkt->stream_index = 0; | |
345 | 2 | pkt->flags |= AV_PKT_FLAG_KEY; | |
346 | 2 | return 0; | |
347 | } | ||
348 | |||
349 | ✗ | static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags) | |
350 | { | ||
351 | ✗ | CineDemuxContext *cine = avctx->priv_data; | |
352 | |||
353 | ✗ | if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE)) | |
354 | ✗ | return AVERROR(ENOSYS); | |
355 | |||
356 | ✗ | if (!(avctx->pb->seekable & AVIO_SEEKABLE_NORMAL)) | |
357 | ✗ | return AVERROR(EIO); | |
358 | |||
359 | ✗ | cine->pts = timestamp; | |
360 | ✗ | return 0; | |
361 | } | ||
362 | |||
363 | const FFInputFormat ff_cine_demuxer = { | ||
364 | .p.name = "cine", | ||
365 | .p.long_name = NULL_IF_CONFIG_SMALL("Phantom Cine"), | ||
366 | .priv_data_size = sizeof(CineDemuxContext), | ||
367 | .read_probe = cine_read_probe, | ||
368 | .read_header = cine_read_header, | ||
369 | .read_packet = cine_read_packet, | ||
370 | .read_seek = cine_read_seek, | ||
371 | }; | ||
372 |