FFmpeg
cinedec.c
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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 "libavcodec/bmp.h"
30 #include "libavutil/intfloat.h"
31 #include "avformat.h"
32 #include "internal.h"
33 
34 typedef struct {
35  uint64_t pts;
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 
54 #define CFA_TLGRAY 0x80000000U
55 #define CFA_TRGRAY 0x40000000U
56 #define CFA_BLGRAY 0x20000000U
57 #define CFA_BRGRAY 0x10000000U
58 
59 static int cine_read_probe(const 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 
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 
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);
106  st->codecpar->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, "unknown 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->codecpar->width = avio_rl32(pb);
131  st->codecpar->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->codecpar->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->codecpar->extradata = av_strdup("BottomUp");
171  if (!st->codecpar->extradata) {
172  st->codecpar->extradata_size = 0;
173  return AVERROR(ENOMEM);
174  }
175  st->codecpar->extradata_size = 9;
176  }
177 
178  avio_skip(pb, 4); // Grid
179 
180  avpriv_set_pts_info(st, 64, 1, avio_rl32(pb));
181 
182  avio_skip(pb, 20); // Shutter .. bEnableColor
183 
184  set_metadata_int(&st->metadata, "camera_version", avio_rl32(pb), 0);
185  set_metadata_int(&st->metadata, "firmware_version", avio_rl32(pb), 0);
186  set_metadata_int(&st->metadata, "software_version", avio_rl32(pb), 0);
187  set_metadata_int(&st->metadata, "recording_timezone", avio_rl32(pb), 0);
188 
189  CFA = avio_rl32(pb);
190 
191  set_metadata_int(&st->metadata, "brightness", avio_rl32(pb), 1);
192  set_metadata_int(&st->metadata, "contrast", avio_rl32(pb), 1);
193  set_metadata_int(&st->metadata, "gamma", avio_rl32(pb), 1);
194 
195  avio_skip(pb, 12 + 16); // Reserved1 .. AutoExpRect
196  set_metadata_float(&st->metadata, "wbgain[0].r", av_int2float(avio_rl32(pb)), 1);
197  set_metadata_float(&st->metadata, "wbgain[0].b", av_int2float(avio_rl32(pb)), 1);
198  avio_skip(pb, 36); // WBGain[1].. WBView
199 
201 
202  if (compression == CC_RGB) {
203  if (biBitCount == 8) {
205  } else if (biBitCount == 16) {
207  } else if (biBitCount == 24) {
209  } else if (biBitCount == 48) {
211  } else {
212  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
213  return AVERROR_INVALIDDATA;
214  }
215  } else if (compression == CC_UNINT) {
216  switch (CFA & 0xFFFFFF) {
217  case CFA_BAYER:
218  if (biBitCount == 8) {
220  } else if (biBitCount == 16) {
222  } else {
223  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
224  return AVERROR_INVALIDDATA;
225  }
226  break;
227  case CFA_BAYERFLIP:
228  if (biBitCount == 8) {
230  } else if (biBitCount == 16) {
232  } else {
233  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
234  return AVERROR_INVALIDDATA;
235  }
236  break;
237  default:
238  avpriv_request_sample(avctx, "unsupported Color Field Array (CFA) %i", CFA & 0xFFFFFF);
239  return AVERROR_INVALIDDATA;
240  }
241  } else { //CC_LEAD
242  avpriv_request_sample(avctx, "unsupported compression %i", compression);
243  return AVERROR_INVALIDDATA;
244  }
245 
246  avio_skip(pb, 668); // Conv8Min ... Sensor
247 
248  set_metadata_int(&st->metadata, "shutter_ns", avio_rl32(pb), 0);
249 
250  avio_skip(pb, 24); // EDRShutterNs ... ImHeightAcq
251 
252 #define DESCRIPTION_SIZE 4096
253  description = av_malloc(DESCRIPTION_SIZE + 1);
254  if (!description)
255  return AVERROR(ENOMEM);
256  i = avio_get_str(pb, DESCRIPTION_SIZE, description, DESCRIPTION_SIZE + 1);
257  if (i < DESCRIPTION_SIZE)
258  avio_skip(pb, DESCRIPTION_SIZE - i);
259  if (description[0])
260  av_dict_set(&st->metadata, "description", description, AV_DICT_DONT_STRDUP_VAL);
261  else
262  av_free(description);
263 
264  avio_skip(pb, 1176); // RisingEdge ... cmUser
265 
266  set_metadata_int(&st->metadata, "enable_crop", avio_rl32(pb), 1);
267  set_metadata_int(&st->metadata, "crop_left", avio_rl32(pb), 1);
268  set_metadata_int(&st->metadata, "crop_top", avio_rl32(pb), 1);
269  set_metadata_int(&st->metadata, "crop_right", avio_rl32(pb), 1);
270  set_metadata_int(&st->metadata, "crop_bottom", avio_rl32(pb), 1);
271 
272  /* parse image offsets */
273  avio_seek(pb, offImageOffsets, SEEK_SET);
274  for (i = 0; i < st->duration; i++) {
275  if (avio_feof(pb))
276  return AVERROR_INVALIDDATA;
277 
278  av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);
279  }
280 
281  return 0;
282 }
283 
285 {
286  CineDemuxContext *cine = avctx->priv_data;
287  AVStream *st = avctx->streams[0];
288  AVIOContext *pb = avctx->pb;
289  int n, size, ret;
290 
291  if (cine->pts >= st->duration)
292  return AVERROR_EOF;
293 
294  avio_seek(pb, st->index_entries[cine->pts].pos, SEEK_SET);
295  n = avio_rl32(pb);
296  if (n < 8)
297  return AVERROR_INVALIDDATA;
298  avio_skip(pb, n - 8);
299  size = avio_rl32(pb);
300 
301  ret = av_get_packet(pb, pkt, size);
302  if (ret < 0)
303  return ret;
304 
305  pkt->pts = cine->pts++;
306  pkt->stream_index = 0;
307  pkt->flags |= AV_PKT_FLAG_KEY;
308  return 0;
309 }
310 
311 static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
312 {
313  CineDemuxContext *cine = avctx->priv_data;
314 
315  if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE))
316  return AVERROR(ENOSYS);
317 
318  if (!(avctx->pb->seekable & AVIO_SEEKABLE_NORMAL))
319  return AVERROR(EIO);
320 
321  cine->pts = timestamp;
322  return 0;
323 }
324 
326  .name = "cine",
327  .long_name = NULL_IF_CONFIG_SMALL("Phantom Cine"),
328  .priv_data_size = sizeof(CineDemuxContext),
333 };
#define NULL
Definition: coverity.c:32
Bytestream IO Context.
Definition: avio.h:161
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero)
Definition: cinedec.c:74
int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags)
Add an index entry into a sorted list.
Definition: utils.c:2049
#define DESCRIPTION_SIZE
void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: utils.c:4929
int64_t pos
Definition: avformat.h:810
static av_always_inline float av_int2float(uint32_t i)
Reinterpret a 32-bit integer as a float.
Definition: intfloat.h:40
#define avpriv_request_sample(...)
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
Definition: libcdio.c:153
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples */
Definition: pixfmt.h:262
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3968
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:246
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
Definition: avformat.h:1110
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:334
const char * key
int version
Definition: avisynth_c.h:858
static AVPacket pkt
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
Definition: bytestream.h:87
Format I/O context.
Definition: avformat.h:1358
GB/RG.
Definition: cinedec.c:50
#define av_malloc(s)
int width
Video only.
Definition: avcodec.h:4034
bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, little-endian */
Definition: pixfmt.h:268
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:108
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4502
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1426
#define AVERROR_EOF
End of file.
Definition: error.h:55
int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
Allocate and read the payload of a packet and initialize its fields with default values.
Definition: utils.c:310
ptrdiff_t size
Definition: opengl_enc.c:100
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1512
static int cine_read_header(AVFormatContext *avctx)
Definition: cinedec.c:92
#define AVINDEX_KEYFRAME
Definition: avformat.h:817
AVInputFormat ff_cine_demuxer
Definition: cinedec.c:325
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
unsigned int avio_rl32(AVIOContext *s)
Definition: aviobuf.c:772
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
enum AVMediaType codec_type
General type of the encoded data.
Definition: avcodec.h:3964
Tag description
Definition: snow.txt:206
GLsizei GLsizei * length
Definition: opengl_enc.c:114
packed RGB 16:16:16, 48bpp, 16B, 16G, 16R, the 2-byte value for each R/G/B component is stored as lit...
Definition: pixfmt.h:149
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1486
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3986
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
Definition: avformat.h:448
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
Definition: avio.h:260
static int set_metadata_float(AVDictionary **dict, const char *key, float value, int allow_zero)
Definition: cinedec.c:82
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that&#39;s been allocated with av_malloc() or another memory allocation functio...
Definition: dict.h:76
GRAY.
Definition: cinedec.c:47
static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt)
Definition: cinedec.c:284
int n
Definition: avisynth_c.h:760
AVDictionary * metadata
Definition: avformat.h:945
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
Uninterpolated color image (CFA field indicates color ordering)
Definition: cinedec.c:42
Gray.
Definition: cinedec.c:40
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:530
Stream structure.
Definition: avformat.h:881
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
Definition: avio_reading.c:42
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
Definition: avio.h:40
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
BGGR/GRBG.
Definition: cinedec.c:49
AVIOContext * pb
I/O context.
Definition: avformat.h:1400
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
static int cine_read_probe(const AVProbeData *p)
Definition: cinedec.c:59
#define AVSEEK_FLAG_BYTE
seeking based on position in bytes
Definition: avformat.h:2519
#define snprintf
Definition: snprintf.h:34
uint64_t pts
Definition: cinedec.c:35
This structure contains the data a format has to probe a file.
Definition: avformat.h:446
RG/GB.
Definition: cinedec.c:51
#define flags(name, subs,...)
Definition: cbs_av1.c:561
Definition: bmp.h:28
bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, little-endian */
Definition: pixfmt.h:266
static int read_probe(const AVProbeData *pd)
Definition: jvdec.c:55
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:930
LEAD (M)JPEG.
Definition: cinedec.c:41
#define AVPROBE_SCORE_MAX
maximum score
Definition: avformat.h:458
unsigned int avio_rl16(AVIOContext *s)
Definition: aviobuf.c:756
Main libavformat public API header.
Y , 8bpp.
Definition: pixfmt.h:74
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set that converts the value to a string and stores it...
Definition: dict.c:147
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples */
Definition: pixfmt.h:261
GBRG/RGGB.
Definition: cinedec.c:48
#define av_free(p)
void * priv_data
Format private data.
Definition: avformat.h:1386
Y , 16bpp, little-endian.
Definition: pixfmt.h:98
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: avcodec.h:4010
#define AVSEEK_FLAG_FRAME
seeking based on frame number
Definition: avformat.h:2521
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3982
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:654
static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
Definition: cinedec.c:311
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1028
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen)
Read a string from pb into buf.
Definition: aviobuf.c:882
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
Definition: aviobuf.c:361
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3972
int stream_index
Definition: avcodec.h:1482
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
#define MKTAG(a, b, c, d)
Definition: common.h:366
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:87
This structure stores compressed data.
Definition: avcodec.h:1457
uint64_t avio_rl64(AVIOContext *s)
Definition: aviobuf.c:780
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1473
static uint8_t tmp[11]
Definition: aes_ctr.c:26