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2ba45a60 | 1 | /* |
f6fa7814 | 2 | * Phantom Cine demuxer |
2ba45a60 DM |
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 "libavcodec/bmp.h" | |
f6fa7814 | 30 | #include "libavutil/intfloat.h" |
2ba45a60 DM |
31 | #include "avformat.h" |
32 | #include "internal.h" | |
33 | ||
34 | typedef struct { | |
35 | uint64_t pts; | |
36 | } CineDemuxContext; | |
37 | ||
38 | /** Compression */ | |
39 | enum { | |
40 | CC_RGB = 0, /**< Gray */ | |
41 | CC_LEAD = 1, /**< LEAD (M)JPEG */ | |
42 | CC_UNINT = 2 /**< Uninterpolated color image (CFA field indicates color ordering) */ | |
43 | }; | |
44 | ||
45 | /** Color Filter Array */ | |
46 | enum { | |
47 | CFA_NONE = 0, /**< GRAY */ | |
48 | CFA_VRI = 1, /**< GBRG/RGGB */ | |
49 | CFA_VRIV6 = 2, /**< BGGR/GRBG */ | |
50 | CFA_BAYER = 3, /**< GB/RG */ | |
51 | CFA_BAYERFLIP = 4, /**< RG/GB */ | |
52 | ||
53 | CFA_TLGRAY = 0x80000000, | |
54 | CFA_TRGRAY = 0x40000000, | |
55 | CFA_BLGRAY = 0x20000000, | |
56 | CFA_BRGRAY = 0x10000000 | |
57 | }; | |
58 | ||
59 | static int cine_read_probe(AVProbeData *p) | |
60 | { | |
61 | int HeaderSize; | |
62 | if (p->buf[0] == 'C' && p->buf[1] == 'I' && // Type | |
63 | (HeaderSize = AV_RL16(p->buf + 2)) >= 0x2C && // HeaderSize | |
64 | AV_RL16(p->buf + 4) <= CC_UNINT && // Compression | |
65 | AV_RL16(p->buf + 6) <= 1 && // Version | |
66 | AV_RL32(p->buf + 20) && // ImageCount | |
67 | AV_RL32(p->buf + 24) >= HeaderSize && // OffImageHeader | |
68 | AV_RL32(p->buf + 28) >= HeaderSize && // OffSetup | |
69 | AV_RL32(p->buf + 32) >= HeaderSize) // OffImageOffsets | |
70 | return AVPROBE_SCORE_MAX; | |
71 | return 0; | |
72 | } | |
73 | ||
74 | static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero) | |
75 | { | |
76 | if (value || allow_zero) { | |
77 | return av_dict_set_int(dict, key, value, 0); | |
78 | } | |
79 | return 0; | |
80 | } | |
81 | ||
f6fa7814 DM |
82 | static int set_metadata_float(AVDictionary **dict, const char *key, float value, int allow_zero) |
83 | { | |
84 | if (value != 0 || allow_zero) { | |
85 | char tmp[64]; | |
86 | snprintf(tmp, sizeof(tmp), "%f", value); | |
87 | return av_dict_set(dict, key, tmp, 0); | |
88 | } | |
89 | return 0; | |
90 | } | |
91 | ||
2ba45a60 DM |
92 | static int cine_read_header(AVFormatContext *avctx) |
93 | { | |
94 | AVIOContext *pb = avctx->pb; | |
95 | AVStream *st; | |
96 | unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA; | |
97 | int vflip; | |
98 | char *description; | |
99 | uint64_t i; | |
100 | ||
101 | st = avformat_new_stream(avctx, NULL); | |
102 | if (!st) | |
103 | return AVERROR(ENOMEM); | |
104 | st->codec->codec_type = AVMEDIA_TYPE_VIDEO; | |
105 | st->codec->codec_id = AV_CODEC_ID_RAWVIDEO; | |
106 | st->codec->codec_tag = 0; | |
107 | ||
108 | /* CINEFILEHEADER structure */ | |
109 | avio_skip(pb, 4); // Type, Headersize | |
110 | ||
111 | compression = avio_rl16(pb); | |
112 | version = avio_rl16(pb); | |
113 | if (version != 1) { | |
114 | avpriv_request_sample(avctx, "uknown version %i", version); | |
115 | return AVERROR_INVALIDDATA; | |
116 | } | |
117 | ||
118 | avio_skip(pb, 12); // FirstMovieImage, TotalImageCount, FirstImageNumber | |
119 | ||
120 | st->duration = avio_rl32(pb); | |
121 | offImageHeader = avio_rl32(pb); | |
122 | offSetup = avio_rl32(pb); | |
123 | offImageOffsets = avio_rl32(pb); | |
124 | ||
125 | avio_skip(pb, 8); // TriggerTime | |
126 | ||
127 | /* BITMAPINFOHEADER structure */ | |
128 | avio_seek(pb, offImageHeader, SEEK_SET); | |
129 | avio_skip(pb, 4); //biSize | |
130 | st->codec->width = avio_rl32(pb); | |
131 | st->codec->height = avio_rl32(pb); | |
132 | ||
133 | if (avio_rl16(pb) != 1) // biPlanes | |
134 | return AVERROR_INVALIDDATA; | |
135 | ||
136 | biBitCount = avio_rl16(pb); | |
137 | if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48) { | |
138 | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
139 | return AVERROR_INVALIDDATA; | |
140 | } | |
141 | ||
142 | switch (avio_rl32(pb)) { | |
143 | case BMP_RGB: | |
144 | vflip = 0; | |
145 | break; | |
146 | case 0x100: /* BI_PACKED */ | |
147 | st->codec->codec_tag = MKTAG('B', 'I', 'T', 0); | |
148 | vflip = 1; | |
149 | break; | |
150 | default: | |
151 | avpriv_request_sample(avctx, "unknown bitmap compression"); | |
152 | return AVERROR_INVALIDDATA; | |
153 | } | |
154 | ||
155 | avio_skip(pb, 4); // biSizeImage | |
156 | ||
157 | /* parse SETUP structure */ | |
158 | avio_seek(pb, offSetup, SEEK_SET); | |
159 | avio_skip(pb, 140); // FrameRatae16 .. descriptionOld | |
160 | if (avio_rl16(pb) != 0x5453) | |
161 | return AVERROR_INVALIDDATA; | |
162 | length = avio_rl16(pb); | |
163 | if (length < 0x163C) { | |
164 | avpriv_request_sample(avctx, "short SETUP header"); | |
165 | return AVERROR_INVALIDDATA; | |
166 | } | |
167 | ||
168 | avio_skip(pb, 616); // Binning .. bFlipH | |
169 | if (!avio_rl32(pb) ^ vflip) { | |
170 | st->codec->extradata = av_strdup("BottomUp"); | |
171 | st->codec->extradata_size = 9; | |
172 | } | |
173 | ||
174 | avio_skip(pb, 4); // Grid | |
175 | ||
176 | avpriv_set_pts_info(st, 64, 1, avio_rl32(pb)); | |
177 | ||
178 | avio_skip(pb, 20); // Shutter .. bEnableColor | |
179 | ||
180 | set_metadata_int(&st->metadata, "camera_version", avio_rl32(pb), 0); | |
181 | set_metadata_int(&st->metadata, "firmware_version", avio_rl32(pb), 0); | |
182 | set_metadata_int(&st->metadata, "software_version", avio_rl32(pb), 0); | |
183 | set_metadata_int(&st->metadata, "recording_timezone", avio_rl32(pb), 0); | |
184 | ||
185 | CFA = avio_rl32(pb); | |
186 | ||
187 | set_metadata_int(&st->metadata, "brightness", avio_rl32(pb), 1); | |
188 | set_metadata_int(&st->metadata, "contrast", avio_rl32(pb), 1); | |
189 | set_metadata_int(&st->metadata, "gamma", avio_rl32(pb), 1); | |
190 | ||
f6fa7814 DM |
191 | avio_skip(pb, 12 + 16); // Reserved1 .. AutoExpRect |
192 | set_metadata_float(&st->metadata, "wbgain[0].r", av_int2float(avio_rl32(pb)), 1); | |
193 | set_metadata_float(&st->metadata, "wbgain[0].b", av_int2float(avio_rl32(pb)), 1); | |
194 | avio_skip(pb, 36); // WBGain[1].. WBView | |
2ba45a60 DM |
195 | |
196 | st->codec->bits_per_coded_sample = avio_rl32(pb); | |
197 | ||
198 | if (compression == CC_RGB) { | |
199 | if (biBitCount == 8) { | |
200 | st->codec->pix_fmt = AV_PIX_FMT_GRAY8; | |
201 | } else if (biBitCount == 16) { | |
202 | st->codec->pix_fmt = AV_PIX_FMT_GRAY16LE; | |
203 | } else if (biBitCount == 24) { | |
204 | st->codec->pix_fmt = AV_PIX_FMT_BGR24; | |
205 | } else if (biBitCount == 48) { | |
206 | st->codec->pix_fmt = AV_PIX_FMT_BGR48LE; | |
207 | } else { | |
208 | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
209 | return AVERROR_INVALIDDATA; | |
210 | } | |
211 | } else if (compression == CC_UNINT) { | |
212 | switch (CFA & 0xFFFFFF) { | |
213 | case CFA_BAYER: | |
214 | if (biBitCount == 8) { | |
215 | st->codec->pix_fmt = AV_PIX_FMT_BAYER_GBRG8; | |
216 | } else if (biBitCount == 16) { | |
217 | st->codec->pix_fmt = AV_PIX_FMT_BAYER_GBRG16LE; | |
218 | } else { | |
219 | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
220 | return AVERROR_INVALIDDATA; | |
221 | } | |
222 | break; | |
223 | case CFA_BAYERFLIP: | |
224 | if (biBitCount == 8) { | |
225 | st->codec->pix_fmt = AV_PIX_FMT_BAYER_RGGB8; | |
226 | } else if (biBitCount == 16) { | |
227 | st->codec->pix_fmt = AV_PIX_FMT_BAYER_RGGB16LE; | |
228 | } else { | |
229 | avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount); | |
230 | return AVERROR_INVALIDDATA; | |
231 | } | |
232 | break; | |
233 | default: | |
234 | avpriv_request_sample(avctx, "unsupported Color Field Array (CFA) %i", CFA & 0xFFFFFF); | |
235 | return AVERROR_INVALIDDATA; | |
236 | } | |
237 | } else { //CC_LEAD | |
238 | avpriv_request_sample(avctx, "unsupported compression %i", compression); | |
239 | return AVERROR_INVALIDDATA; | |
240 | } | |
241 | ||
242 | avio_skip(pb, 668); // Conv8Min ... Sensor | |
243 | ||
244 | set_metadata_int(&st->metadata, "shutter_ns", avio_rl32(pb), 0); | |
245 | ||
246 | avio_skip(pb, 24); // EDRShutterNs ... ImHeightAcq | |
247 | ||
248 | #define DESCRIPTION_SIZE 4096 | |
249 | description = av_malloc(DESCRIPTION_SIZE + 1); | |
250 | if (!description) | |
251 | return AVERROR(ENOMEM); | |
252 | i = avio_get_str(pb, DESCRIPTION_SIZE, description, DESCRIPTION_SIZE + 1); | |
253 | if (i < DESCRIPTION_SIZE) | |
254 | avio_skip(pb, DESCRIPTION_SIZE - i); | |
255 | if (description[0]) | |
256 | av_dict_set(&st->metadata, "description", description, AV_DICT_DONT_STRDUP_VAL); | |
257 | else | |
258 | av_free(description); | |
259 | ||
260 | avio_skip(pb, 1176); // RisingEdge ... cmUser | |
261 | ||
262 | set_metadata_int(&st->metadata, "enable_crop", avio_rl32(pb), 1); | |
263 | set_metadata_int(&st->metadata, "crop_left", avio_rl32(pb), 1); | |
264 | set_metadata_int(&st->metadata, "crop_top", avio_rl32(pb), 1); | |
265 | set_metadata_int(&st->metadata, "crop_right", avio_rl32(pb), 1); | |
266 | set_metadata_int(&st->metadata, "crop_bottom", avio_rl32(pb), 1); | |
267 | ||
268 | /* parse image offsets */ | |
269 | avio_seek(pb, offImageOffsets, SEEK_SET); | |
270 | for (i = 0; i < st->duration; i++) | |
271 | av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME); | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
276 | static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt) | |
277 | { | |
278 | CineDemuxContext *cine = avctx->priv_data; | |
279 | AVStream *st = avctx->streams[0]; | |
280 | AVIOContext *pb = avctx->pb; | |
281 | int n, size, ret; | |
282 | ||
283 | if (cine->pts >= st->duration) | |
284 | return AVERROR_EOF; | |
285 | ||
286 | avio_seek(pb, st->index_entries[cine->pts].pos, SEEK_SET); | |
287 | n = avio_rl32(pb); | |
288 | if (n < 8) | |
289 | return AVERROR_INVALIDDATA; | |
290 | avio_skip(pb, n - 8); | |
291 | size = avio_rl32(pb); | |
292 | ||
293 | ret = av_get_packet(pb, pkt, size); | |
294 | if (ret < 0) | |
295 | return ret; | |
296 | ||
297 | pkt->pts = cine->pts++; | |
298 | pkt->stream_index = 0; | |
299 | pkt->flags |= AV_PKT_FLAG_KEY; | |
300 | return 0; | |
301 | } | |
302 | ||
303 | static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags) | |
304 | { | |
305 | CineDemuxContext *cine = avctx->priv_data; | |
306 | ||
307 | if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE)) | |
308 | return AVERROR(ENOSYS); | |
309 | ||
310 | if (!avctx->pb->seekable) | |
311 | return AVERROR(EIO); | |
312 | ||
313 | cine->pts = timestamp; | |
314 | return 0; | |
315 | } | |
316 | ||
317 | AVInputFormat ff_cine_demuxer = { | |
318 | .name = "cine", | |
319 | .long_name = NULL_IF_CONFIG_SMALL("Phantom Cine"), | |
320 | .priv_data_size = sizeof(CineDemuxContext), | |
321 | .read_probe = cine_read_probe, | |
322 | .read_header = cine_read_header, | |
323 | .read_packet = cine_read_packet, | |
324 | .read_seek = cine_read_seek, | |
325 | }; |