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  st->codecpar->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 
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
195 
197 
198  if (compression == CC_RGB) {
199  if (biBitCount == 8) {
201  } else if (biBitCount == 16) {
203  } else if (biBitCount == 24) {
205  } else if (biBitCount == 48) {
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) {
216  } else if (biBitCount == 16) {
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) {
226  } else if (biBitCount == 16) {
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  if (avio_feof(pb))
272  return AVERROR_INVALIDDATA;
273 
274  av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);
275  }
276 
277  return 0;
278 }
279 
281 {
282  CineDemuxContext *cine = avctx->priv_data;
283  AVStream *st = avctx->streams[0];
284  AVIOContext *pb = avctx->pb;
285  int n, size, ret;
286 
287  if (cine->pts >= st->duration)
288  return AVERROR_EOF;
289 
290  avio_seek(pb, st->index_entries[cine->pts].pos, SEEK_SET);
291  n = avio_rl32(pb);
292  if (n < 8)
293  return AVERROR_INVALIDDATA;
294  avio_skip(pb, n - 8);
295  size = avio_rl32(pb);
296 
297  ret = av_get_packet(pb, pkt, size);
298  if (ret < 0)
299  return ret;
300 
301  pkt->pts = cine->pts++;
302  pkt->stream_index = 0;
303  pkt->flags |= AV_PKT_FLAG_KEY;
304  return 0;
305 }
306 
307 static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
308 {
309  CineDemuxContext *cine = avctx->priv_data;
310 
311  if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE))
312  return AVERROR(ENOSYS);
313 
314  if (!(avctx->pb->seekable & AVIO_SEEKABLE_NORMAL))
315  return AVERROR(EIO);
316 
317  cine->pts = timestamp;
318  return 0;
319 }
320 
322  .name = "cine",
323  .long_name = NULL_IF_CONFIG_SMALL("Phantom Cine"),
324  .priv_data_size = sizeof(CineDemuxContext),
329 };
#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:2039
#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:4882
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:3953
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
Gray.
Definition: cinedec.c:40
GRAY.
Definition: cinedec.c:47
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:331
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
Uninterpolated color image (CFA field indicates color ordering)
Definition: cinedec.c:42
Format I/O context.
Definition: avformat.h:1358
#define av_malloc(s)
int width
Video only.
Definition: avcodec.h:4019
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:4455
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:1509
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:321
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:260
unsigned int avio_rl32(AVIOContext *s)
Definition: aviobuf.c:770
#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:3949
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:1483
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3971
BGGR/GRBG.
Definition: cinedec.c:49
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
static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt)
Definition: cinedec.c:280
int n
Definition: avisynth_c.h:760
AVDictionary * metadata
Definition: avformat.h:945
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
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
LEAD (M)JPEG.
Definition: cinedec.c:41
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
RG/GB.
Definition: cinedec.c:51
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:2512
#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
#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
#define AVPROBE_SCORE_MAX
maximum score
Definition: avformat.h:458
unsigned int avio_rl16(AVIOContext *s)
Definition: aviobuf.c:754
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
GBRG/RGGB.
Definition: cinedec.c:48
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples */
Definition: pixfmt.h:261
#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:3995
#define AVSEEK_FLAG_FRAME
seeking based on frame number
Definition: avformat.h:2514
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3967
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:307
GB/RG.
Definition: cinedec.c:50
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:880
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
Definition: aviobuf.c:358
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: avcodec.h:3957
int stream_index
Definition: avcodec.h:1479
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:1454
uint64_t avio_rl64(AVIOContext *s)
Definition: aviobuf.c:778
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1470
static uint8_t tmp[11]
Definition: aes_ctr.c:26