Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavformat / cinedec.c
CommitLineData
2ba45a60
DM
1/*
2 * Phanton 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 "libavcodec/bmp.h"
30#include "avformat.h"
31#include "internal.h"
32
33typedef struct {
34 uint64_t pts;
35} CineDemuxContext;
36
37/** Compression */
38enum {
39 CC_RGB = 0, /**< Gray */
40 CC_LEAD = 1, /**< LEAD (M)JPEG */
41 CC_UNINT = 2 /**< Uninterpolated color image (CFA field indicates color ordering) */
42};
43
44/** Color Filter Array */
45enum {
46 CFA_NONE = 0, /**< GRAY */
47 CFA_VRI = 1, /**< GBRG/RGGB */
48 CFA_VRIV6 = 2, /**< BGGR/GRBG */
49 CFA_BAYER = 3, /**< GB/RG */
50 CFA_BAYERFLIP = 4, /**< RG/GB */
51
52 CFA_TLGRAY = 0x80000000,
53 CFA_TRGRAY = 0x40000000,
54 CFA_BLGRAY = 0x20000000,
55 CFA_BRGRAY = 0x10000000
56};
57
58static int cine_read_probe(AVProbeData *p)
59{
60 int HeaderSize;
61 if (p->buf[0] == 'C' && p->buf[1] == 'I' && // Type
62 (HeaderSize = AV_RL16(p->buf + 2)) >= 0x2C && // HeaderSize
63 AV_RL16(p->buf + 4) <= CC_UNINT && // Compression
64 AV_RL16(p->buf + 6) <= 1 && // Version
65 AV_RL32(p->buf + 20) && // ImageCount
66 AV_RL32(p->buf + 24) >= HeaderSize && // OffImageHeader
67 AV_RL32(p->buf + 28) >= HeaderSize && // OffSetup
68 AV_RL32(p->buf + 32) >= HeaderSize) // OffImageOffsets
69 return AVPROBE_SCORE_MAX;
70 return 0;
71}
72
73static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero)
74{
75 if (value || allow_zero) {
76 return av_dict_set_int(dict, key, value, 0);
77 }
78 return 0;
79}
80
81static int cine_read_header(AVFormatContext *avctx)
82{
83 AVIOContext *pb = avctx->pb;
84 AVStream *st;
85 unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA;
86 int vflip;
87 char *description;
88 uint64_t i;
89
90 st = avformat_new_stream(avctx, NULL);
91 if (!st)
92 return AVERROR(ENOMEM);
93 st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
94 st->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
95 st->codec->codec_tag = 0;
96
97 /* CINEFILEHEADER structure */
98 avio_skip(pb, 4); // Type, Headersize
99
100 compression = avio_rl16(pb);
101 version = avio_rl16(pb);
102 if (version != 1) {
103 avpriv_request_sample(avctx, "uknown version %i", version);
104 return AVERROR_INVALIDDATA;
105 }
106
107 avio_skip(pb, 12); // FirstMovieImage, TotalImageCount, FirstImageNumber
108
109 st->duration = avio_rl32(pb);
110 offImageHeader = avio_rl32(pb);
111 offSetup = avio_rl32(pb);
112 offImageOffsets = avio_rl32(pb);
113
114 avio_skip(pb, 8); // TriggerTime
115
116 /* BITMAPINFOHEADER structure */
117 avio_seek(pb, offImageHeader, SEEK_SET);
118 avio_skip(pb, 4); //biSize
119 st->codec->width = avio_rl32(pb);
120 st->codec->height = avio_rl32(pb);
121
122 if (avio_rl16(pb) != 1) // biPlanes
123 return AVERROR_INVALIDDATA;
124
125 biBitCount = avio_rl16(pb);
126 if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48) {
127 avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
128 return AVERROR_INVALIDDATA;
129 }
130
131 switch (avio_rl32(pb)) {
132 case BMP_RGB:
133 vflip = 0;
134 break;
135 case 0x100: /* BI_PACKED */
136 st->codec->codec_tag = MKTAG('B', 'I', 'T', 0);
137 vflip = 1;
138 break;
139 default:
140 avpriv_request_sample(avctx, "unknown bitmap compression");
141 return AVERROR_INVALIDDATA;
142 }
143
144 avio_skip(pb, 4); // biSizeImage
145
146 /* parse SETUP structure */
147 avio_seek(pb, offSetup, SEEK_SET);
148 avio_skip(pb, 140); // FrameRatae16 .. descriptionOld
149 if (avio_rl16(pb) != 0x5453)
150 return AVERROR_INVALIDDATA;
151 length = avio_rl16(pb);
152 if (length < 0x163C) {
153 avpriv_request_sample(avctx, "short SETUP header");
154 return AVERROR_INVALIDDATA;
155 }
156
157 avio_skip(pb, 616); // Binning .. bFlipH
158 if (!avio_rl32(pb) ^ vflip) {
159 st->codec->extradata = av_strdup("BottomUp");
160 st->codec->extradata_size = 9;
161 }
162
163 avio_skip(pb, 4); // Grid
164
165 avpriv_set_pts_info(st, 64, 1, avio_rl32(pb));
166
167 avio_skip(pb, 20); // Shutter .. bEnableColor
168
169 set_metadata_int(&st->metadata, "camera_version", avio_rl32(pb), 0);
170 set_metadata_int(&st->metadata, "firmware_version", avio_rl32(pb), 0);
171 set_metadata_int(&st->metadata, "software_version", avio_rl32(pb), 0);
172 set_metadata_int(&st->metadata, "recording_timezone", avio_rl32(pb), 0);
173
174 CFA = avio_rl32(pb);
175
176 set_metadata_int(&st->metadata, "brightness", avio_rl32(pb), 1);
177 set_metadata_int(&st->metadata, "contrast", avio_rl32(pb), 1);
178 set_metadata_int(&st->metadata, "gamma", avio_rl32(pb), 1);
179
180 avio_skip(pb, 72); // Reserved1 .. WBView
181
182 st->codec->bits_per_coded_sample = avio_rl32(pb);
183
184 if (compression == CC_RGB) {
185 if (biBitCount == 8) {
186 st->codec->pix_fmt = AV_PIX_FMT_GRAY8;
187 } else if (biBitCount == 16) {
188 st->codec->pix_fmt = AV_PIX_FMT_GRAY16LE;
189 } else if (biBitCount == 24) {
190 st->codec->pix_fmt = AV_PIX_FMT_BGR24;
191 } else if (biBitCount == 48) {
192 st->codec->pix_fmt = AV_PIX_FMT_BGR48LE;
193 } else {
194 avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
195 return AVERROR_INVALIDDATA;
196 }
197 } else if (compression == CC_UNINT) {
198 switch (CFA & 0xFFFFFF) {
199 case CFA_BAYER:
200 if (biBitCount == 8) {
201 st->codec->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
202 } else if (biBitCount == 16) {
203 st->codec->pix_fmt = AV_PIX_FMT_BAYER_GBRG16LE;
204 } else {
205 avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
206 return AVERROR_INVALIDDATA;
207 }
208 break;
209 case CFA_BAYERFLIP:
210 if (biBitCount == 8) {
211 st->codec->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
212 } else if (biBitCount == 16) {
213 st->codec->pix_fmt = AV_PIX_FMT_BAYER_RGGB16LE;
214 } else {
215 avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
216 return AVERROR_INVALIDDATA;
217 }
218 break;
219 default:
220 avpriv_request_sample(avctx, "unsupported Color Field Array (CFA) %i", CFA & 0xFFFFFF);
221 return AVERROR_INVALIDDATA;
222 }
223 } else { //CC_LEAD
224 avpriv_request_sample(avctx, "unsupported compression %i", compression);
225 return AVERROR_INVALIDDATA;
226 }
227
228 avio_skip(pb, 668); // Conv8Min ... Sensor
229
230 set_metadata_int(&st->metadata, "shutter_ns", avio_rl32(pb), 0);
231
232 avio_skip(pb, 24); // EDRShutterNs ... ImHeightAcq
233
234#define DESCRIPTION_SIZE 4096
235 description = av_malloc(DESCRIPTION_SIZE + 1);
236 if (!description)
237 return AVERROR(ENOMEM);
238 i = avio_get_str(pb, DESCRIPTION_SIZE, description, DESCRIPTION_SIZE + 1);
239 if (i < DESCRIPTION_SIZE)
240 avio_skip(pb, DESCRIPTION_SIZE - i);
241 if (description[0])
242 av_dict_set(&st->metadata, "description", description, AV_DICT_DONT_STRDUP_VAL);
243 else
244 av_free(description);
245
246 avio_skip(pb, 1176); // RisingEdge ... cmUser
247
248 set_metadata_int(&st->metadata, "enable_crop", avio_rl32(pb), 1);
249 set_metadata_int(&st->metadata, "crop_left", avio_rl32(pb), 1);
250 set_metadata_int(&st->metadata, "crop_top", avio_rl32(pb), 1);
251 set_metadata_int(&st->metadata, "crop_right", avio_rl32(pb), 1);
252 set_metadata_int(&st->metadata, "crop_bottom", avio_rl32(pb), 1);
253
254 /* parse image offsets */
255 avio_seek(pb, offImageOffsets, SEEK_SET);
256 for (i = 0; i < st->duration; i++)
257 av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);
258
259 return 0;
260}
261
262static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt)
263{
264 CineDemuxContext *cine = avctx->priv_data;
265 AVStream *st = avctx->streams[0];
266 AVIOContext *pb = avctx->pb;
267 int n, size, ret;
268
269 if (cine->pts >= st->duration)
270 return AVERROR_EOF;
271
272 avio_seek(pb, st->index_entries[cine->pts].pos, SEEK_SET);
273 n = avio_rl32(pb);
274 if (n < 8)
275 return AVERROR_INVALIDDATA;
276 avio_skip(pb, n - 8);
277 size = avio_rl32(pb);
278
279 ret = av_get_packet(pb, pkt, size);
280 if (ret < 0)
281 return ret;
282
283 pkt->pts = cine->pts++;
284 pkt->stream_index = 0;
285 pkt->flags |= AV_PKT_FLAG_KEY;
286 return 0;
287}
288
289static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
290{
291 CineDemuxContext *cine = avctx->priv_data;
292
293 if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE))
294 return AVERROR(ENOSYS);
295
296 if (!avctx->pb->seekable)
297 return AVERROR(EIO);
298
299 cine->pts = timestamp;
300 return 0;
301}
302
303AVInputFormat ff_cine_demuxer = {
304 .name = "cine",
305 .long_name = NULL_IF_CONFIG_SMALL("Phantom Cine"),
306 .priv_data_size = sizeof(CineDemuxContext),
307 .read_probe = cine_read_probe,
308 .read_header = cine_read_header,
309 .read_packet = cine_read_packet,
310 .read_seek = cine_read_seek,
311};