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 "demux.h"
33 #include "internal.h"
34 
35 typedef struct {
36  uint64_t pts;
37  uint64_t maxsize;
39 
40 /** Compression */
41 enum {
42  CC_RGB = 0, /**< Gray */
43  CC_LEAD = 1, /**< LEAD (M)JPEG */
44  CC_UNINT = 2 /**< Uninterpolated color image (CFA field indicates color ordering) */
45 };
46 
47 /** Color Filter Array */
48 enum {
49  CFA_NONE = 0, /**< GRAY */
50  CFA_VRI = 1, /**< GBRG/RGGB */
51  CFA_VRIV6 = 2, /**< BGGR/GRBG */
52  CFA_BAYER = 3, /**< GB/RG */
53  CFA_BAYERFLIP = 4, /**< RG/GB */
54 };
55 
56 #define CFA_TLGRAY 0x80000000U
57 #define CFA_TRGRAY 0x40000000U
58 #define CFA_BLGRAY 0x20000000U
59 #define CFA_BRGRAY 0x10000000U
60 
61 static int cine_read_probe(const AVProbeData *p)
62 {
63  int HeaderSize;
64  if (p->buf[0] == 'C' && p->buf[1] == 'I' && // Type
65  (HeaderSize = AV_RL16(p->buf + 2)) >= 0x2C && // HeaderSize
66  AV_RL16(p->buf + 4) <= CC_UNINT && // Compression
67  AV_RL16(p->buf + 6) <= 1 && // Version
68  AV_RL32(p->buf + 20) && // ImageCount
69  AV_RL32(p->buf + 24) >= HeaderSize && // OffImageHeader
70  AV_RL32(p->buf + 28) >= HeaderSize && // OffSetup
71  AV_RL32(p->buf + 32) >= HeaderSize) // OffImageOffsets
72  return AVPROBE_SCORE_MAX;
73  return 0;
74 }
75 
76 static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero)
77 {
78  if (value || allow_zero) {
79  return av_dict_set_int(dict, key, value, 0);
80  }
81  return 0;
82 }
83 
84 static int set_metadata_float(AVDictionary **dict, const char *key, float value, int allow_zero)
85 {
86  if (value != 0 || allow_zero) {
87  char tmp[64];
88  snprintf(tmp, sizeof(tmp), "%f", value);
89  return av_dict_set(dict, key, tmp, 0);
90  }
91  return 0;
92 }
93 
95 {
96  AVIOContext *pb = avctx->pb;
97  AVStream *st;
98  unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA;
99  int vflip;
100  char *description;
101  uint64_t i;
102 
103  st = avformat_new_stream(avctx, NULL);
104  if (!st)
105  return AVERROR(ENOMEM);
108  st->codecpar->codec_tag = 0;
109 
110  /* CINEFILEHEADER structure */
111  avio_skip(pb, 4); // Type, Headersize
112 
113  compression = avio_rl16(pb);
114  version = avio_rl16(pb);
115  if (version != 1) {
116  avpriv_request_sample(avctx, "unknown version %i", version);
117  return AVERROR_INVALIDDATA;
118  }
119 
120  avio_skip(pb, 12); // FirstMovieImage, TotalImageCount, FirstImageNumber
121 
122  st->duration = avio_rl32(pb);
123  offImageHeader = avio_rl32(pb);
124  offSetup = avio_rl32(pb);
125  offImageOffsets = avio_rl32(pb);
126 
127  avio_skip(pb, 8); // TriggerTime
128 
129  /* BITMAPINFOHEADER structure */
130  avio_seek(pb, offImageHeader, SEEK_SET);
131  avio_skip(pb, 4); //biSize
132  st->codecpar->width = avio_rl32(pb);
133  st->codecpar->height = avio_rl32(pb);
134 
135  if (avio_rl16(pb) != 1) // biPlanes
136  return AVERROR_INVALIDDATA;
137 
138  biBitCount = avio_rl16(pb);
139  if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48) {
140  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
141  return AVERROR_INVALIDDATA;
142  }
143 
144  switch (avio_rl32(pb)) {
145  case BMP_RGB:
146  vflip = 0;
147  break;
148  case 0x100: /* BI_PACKED */
149  st->codecpar->codec_tag = MKTAG('B', 'I', 'T', 0);
150  vflip = 1;
151  break;
152  default:
153  avpriv_request_sample(avctx, "unknown bitmap compression");
154  return AVERROR_INVALIDDATA;
155  }
156 
157  avio_skip(pb, 4); // biSizeImage
158 
159  /* parse SETUP structure */
160  avio_seek(pb, offSetup, SEEK_SET);
161  avio_skip(pb, 140); // FrameRatae16 .. descriptionOld
162  if (avio_rl16(pb) != 0x5453)
163  return AVERROR_INVALIDDATA;
164  length = avio_rl16(pb);
165  if (length < 0x163C) {
166  avpriv_request_sample(avctx, "short SETUP header");
167  return AVERROR_INVALIDDATA;
168  }
169 
170  avio_skip(pb, 616); // Binning .. bFlipH
171  if (!avio_rl32(pb) ^ vflip) {
172  st->codecpar->extradata = av_strdup("BottomUp");
173  if (!st->codecpar->extradata) {
174  st->codecpar->extradata_size = 0;
175  return AVERROR(ENOMEM);
176  }
177  st->codecpar->extradata_size = 9;
178  }
179 
180  avio_skip(pb, 4); // Grid
181 
182  avpriv_set_pts_info(st, 64, 1, avio_rl32(pb));
183 
184  avio_skip(pb, 20); // Shutter .. bEnableColor
185 
186  set_metadata_int(&st->metadata, "camera_version", avio_rl32(pb), 0);
187  set_metadata_int(&st->metadata, "firmware_version", avio_rl32(pb), 0);
188  set_metadata_int(&st->metadata, "software_version", avio_rl32(pb), 0);
189  set_metadata_int(&st->metadata, "recording_timezone", avio_rl32(pb), 0);
190 
191  CFA = avio_rl32(pb);
192 
193  set_metadata_int(&st->metadata, "brightness", avio_rl32(pb), 1);
194  set_metadata_int(&st->metadata, "contrast", avio_rl32(pb), 1);
195  set_metadata_int(&st->metadata, "gamma", avio_rl32(pb), 1);
196 
197  avio_skip(pb, 12 + 16); // Reserved1 .. AutoExpRect
198  set_metadata_float(&st->metadata, "wbgain[0].r", av_int2float(avio_rl32(pb)), 1);
199  set_metadata_float(&st->metadata, "wbgain[0].b", av_int2float(avio_rl32(pb)), 1);
200  avio_skip(pb, 36); // WBGain[1].. WBView
201 
203 
204  if (compression == CC_RGB) {
205  if (biBitCount == 8) {
207  } else if (biBitCount == 16) {
209  } else if (biBitCount == 24) {
211  } else if (biBitCount == 48) {
213  } else {
214  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
215  return AVERROR_INVALIDDATA;
216  }
217  } else if (compression == CC_UNINT) {
218  switch (CFA & 0xFFFFFF) {
219  case CFA_BAYER:
220  if (biBitCount == 8) {
222  } else if (biBitCount == 16) {
224  } else {
225  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
226  return AVERROR_INVALIDDATA;
227  }
228  break;
229  case CFA_BAYERFLIP:
230  if (biBitCount == 8) {
232  } else if (biBitCount == 16) {
234  } else {
235  avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
236  return AVERROR_INVALIDDATA;
237  }
238  break;
239  default:
240  avpriv_request_sample(avctx, "unsupported Color Field Array (CFA) %i", CFA & 0xFFFFFF);
241  return AVERROR_INVALIDDATA;
242  }
243  } else { //CC_LEAD
244  avpriv_request_sample(avctx, "unsupported compression %i", compression);
245  return AVERROR_INVALIDDATA;
246  }
247 
248  avio_skip(pb, 668); // Conv8Min ... Sensor
249 
250  set_metadata_int(&st->metadata, "shutter_ns", avio_rl32(pb), 0);
251 
252  avio_skip(pb, 24); // EDRShutterNs ... ImHeightAcq
253 
254 #define DESCRIPTION_SIZE 4096
256  if (!description)
257  return AVERROR(ENOMEM);
259  if (i < DESCRIPTION_SIZE)
261  if (description[0])
263  else
265 
266  avio_skip(pb, 1176); // RisingEdge ... cmUser
267 
268  set_metadata_int(&st->metadata, "enable_crop", avio_rl32(pb), 1);
269  set_metadata_int(&st->metadata, "crop_left", avio_rl32(pb), 1);
270  set_metadata_int(&st->metadata, "crop_top", avio_rl32(pb), 1);
271  set_metadata_int(&st->metadata, "crop_right", avio_rl32(pb), 1);
272  set_metadata_int(&st->metadata, "crop_bottom", avio_rl32(pb), 1);
273 
274  /* parse image offsets */
275  avio_seek(pb, offImageOffsets, SEEK_SET);
276  for (i = 0; i < st->duration; i++) {
277  int64_t pos = avio_rl64(pb);
278  if (avio_feof(pb) || pos < 0)
279  return AVERROR_INVALIDDATA;
280 
282  }
283 
284  return 0;
285 }
286 
288 {
289  CineDemuxContext *cine = avctx->priv_data;
290  AVStream *st = avctx->streams[0];
291  FFStream *const sti = ffstream(st);
292  AVIOContext *pb = avctx->pb;
293  int n, size, ret;
294  int64_t ret64;
295 
296  if (cine->pts >= sti->nb_index_entries)
297  return AVERROR_EOF;
298 
299  ret64 = avio_seek(pb, sti->index_entries[cine->pts].pos, SEEK_SET);
300  if (ret64 < 0)
301  return ret64;
302  n = avio_rl32(pb);
303  if (n < 8)
304  return AVERROR_INVALIDDATA;
305  avio_skip(pb, n - 8);
306  size = avio_rl32(pb);
307  if (avio_feof(pb) || size < 0)
308  return AVERROR_INVALIDDATA;
309 
310  if (cine->maxsize && (uint64_t)sti->index_entries[cine->pts].pos + size + n > cine->maxsize)
311  size = cine->maxsize - sti->index_entries[cine->pts].pos - n;
312 
313  ret = av_get_packet(pb, pkt, size);
314  if (ret < 0)
315  return ret;
316 
317  if (ret != size)
318  cine->maxsize = (uint64_t)sti->index_entries[cine->pts].pos + n + ret;
319 
320  pkt->pts = cine->pts++;
321  pkt->stream_index = 0;
323  return 0;
324 }
325 
326 static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
327 {
328  CineDemuxContext *cine = avctx->priv_data;
329 
331  return AVERROR(ENOSYS);
332 
333  if (!(avctx->pb->seekable & AVIO_SEEKABLE_NORMAL))
334  return AVERROR(EIO);
335 
336  cine->pts = timestamp;
337  return 0;
338 }
339 
341  .p.name = "cine",
342  .p.long_name = NULL_IF_CONFIG_SMALL("Phantom Cine"),
343  .priv_data_size = sizeof(CineDemuxContext),
348 };
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:69
AV_PIX_FMT_BAYER_GBRG16LE
@ AV_PIX_FMT_BAYER_GBRG16LE
bayer, GBGB..(odd line), RGRG..(even line), 16-bit samples, little-endian
Definition: pixfmt.h:293
AV_PIX_FMT_BGR48LE
@ AV_PIX_FMT_BGR48LE
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:146
AVERROR
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
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:51
AVSEEK_FLAG_FRAME
#define AVSEEK_FLAG_FRAME
seeking based on frame number
Definition: avformat.h:2436
CC_RGB
@ CC_RGB
Gray.
Definition: cinedec.c:42
avformat_new_stream
AVStream * avformat_new_stream(AVFormatContext *s, const struct AVCodec *c)
Add a new stream to a media file.
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
AV_CODEC_ID_RAWVIDEO
@ AV_CODEC_ID_RAWVIDEO
Definition: codec_id.h:65
ff_cine_demuxer
const FFInputFormat ff_cine_demuxer
Definition: cinedec.c:340
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:28
AVFormatContext::streams
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1323
CC_UNINT
@ CC_UNINT
Uninterpolated color image (CFA field indicates color ordering)
Definition: cinedec.c:44
AVSEEK_FLAG_BYTE
#define AVSEEK_FLAG_BYTE
seeking based on position in bytes
Definition: avformat.h:2434
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:76
AVCodecParameters::codec_tag
uint32_t codec_tag
Additional information about the codec (corresponds to the AVI FOURCC).
Definition: codec_par.h:59
AVDictionary
Definition: dict.c:34
CFA_BAYERFLIP
@ CFA_BAYERFLIP
RG/GB.
Definition: cinedec.c:53
BMP_RGB
@ BMP_RGB
Definition: bmp.h:26
intfloat.h
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:577
cine_read_header
static int cine_read_header(AVFormatContext *avctx)
Definition: cinedec.c:94
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
AVINDEX_KEYFRAME
#define AVINDEX_KEYFRAME
Definition: avformat.h:610
DESCRIPTION_SIZE
#define DESCRIPTION_SIZE
AVPROBE_SCORE_MAX
#define AVPROBE_SCORE_MAX
maximum score
Definition: avformat.h:463
avpriv_set_pts_info
void avpriv_set_pts_info(AVStream *st, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition: avformat.c:853
ffstream
static av_always_inline FFStream * ffstream(AVStream *st)
Definition: internal.h:423
av_int2float
static av_always_inline float av_int2float(uint32_t i)
Reinterpret a 32-bit integer as a float.
Definition: intfloat.h:40
read_seek
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
Definition: libcdio.c:151
av_add_index_entry
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: seek.c:120
CineDemuxContext::maxsize
uint64_t maxsize
Definition: cinedec.c:37
AVStream::duration
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:802
avio_rl16
unsigned int avio_rl16(AVIOContext *s)
Definition: aviobuf.c:713
CC_LEAD
@ CC_LEAD
LEAD (M)JPEG.
Definition: cinedec.c:43
AV_DICT_DONT_STRDUP_VAL
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
Definition: dict.h:79
description
Tag description
Definition: snow.txt:206
pkt
AVPacket * pkt
Definition: movenc.c:59
read_packet
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
Definition: avio_read_callback.c:41
set_metadata_float
static int set_metadata_float(AVDictionary **dict, const char *key, float value, int allow_zero)
Definition: cinedec.c:84
intreadwrite.h
AV_PIX_FMT_BAYER_RGGB16LE
@ AV_PIX_FMT_BAYER_RGGB16LE
bayer, RGRG..(odd line), GBGB..(even line), 16-bit samples, little-endian
Definition: pixfmt.h:291
AVInputFormat::name
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:553
AVProbeData::buf
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
Definition: avformat.h:453
AVCodecParameters::width
int width
Video only.
Definition: codec_par.h:134
AV_RL16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
Definition: bytestream.h:94
key
const char * key
Definition: hwcontext_opencl.c:189
cine_read_packet
static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt)
Definition: cinedec.c:287
AV_PIX_FMT_BAYER_RGGB8
@ AV_PIX_FMT_BAYER_RGGB8
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
Definition: pixfmt.h:286
AVFormatContext
Format I/O context.
Definition: avformat.h:1255
internal.h
bmp.h
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:766
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:550
NULL
#define NULL
Definition: coverity.c:32
CFA_BAYER
@ CFA_BAYER
GB/RG.
Definition: cinedec.c:52
AVFormatContext::pb
AVIOContext * pb
I/O context.
Definition: avformat.h:1297
FFStream::nb_index_entries
int nb_index_entries
Definition: internal.h:257
AVProbeData
This structure contains the data a format has to probe a file.
Definition: avformat.h:451
AVStream::metadata
AVDictionary * metadata
Definition: avformat.h:823
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
cine_read_probe
static int cine_read_probe(const AVProbeData *p)
Definition: cinedec.c:61
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:73
avio_rl32
unsigned int avio_rl32(AVIOContext *s)
Definition: aviobuf.c:729
AVIOContext
Bytestream IO Context.
Definition: avio.h:160
CFA_NONE
@ CFA_NONE
GRAY.
Definition: cinedec.c:49
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:106
AVIOContext::seekable
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
Definition: avio.h:261
FFStream
Definition: internal.h:199
avio_get_str
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen)
Read a string from pb into buf.
Definition: aviobuf.c:865
size
int size
Definition: twinvq_data.h:10344
CineDemuxContext
Definition: cinedec.c:35
FFInputFormat::p
AVInputFormat p
The public AVInputFormat.
Definition: demux.h:35
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:528
version
version
Definition: libkvazaar.c:321
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:515
AVCodecParameters::height
int height
Definition: codec_par.h:135
AV_PIX_FMT_BAYER_GBRG8
@ AV_PIX_FMT_BAYER_GBRG8
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
Definition: pixfmt.h:287
value
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
Definition: writing_filters.txt:86
demux.h
av_get_packet
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:103
ret
ret
Definition: filter_design.txt:187
AVStream
Stream structure.
Definition: avformat.h:743
avio_seek
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:230
pos
unsigned int pos
Definition: spdifenc.c:413
CineDemuxContext::pts
uint64_t pts
Definition: cinedec.c:36
avformat.h
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
AVIO_SEEKABLE_NORMAL
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
Definition: avio.h:41
AVIndexEntry::pos
int64_t pos
Definition: avformat.h:603
AVPacket::stream_index
int stream_index
Definition: packet.h:524
avio_skip
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:317
CFA_VRI
@ CFA_VRI
GBRG/RGGB.
Definition: cinedec.c:50
FFStream::index_entries
AVIndexEntry * index_entries
Only used if the format does not support seeking natively.
Definition: internal.h:255
av_dict_set_int
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:167
av_strdup
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:270
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
read_probe
static int read_probe(const AVProbeData *p)
Definition: cdg.c:30
AV_PIX_FMT_GRAY16LE
@ AV_PIX_FMT_GRAY16LE
Y , 16bpp, little-endian.
Definition: pixfmt.h:105
AVCodecParameters::bits_per_coded_sample
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:110
avpriv_request_sample
#define avpriv_request_sample(...)
Definition: tableprint_vlc.h:36
AVCodecParameters::format
int format
Definition: codec_par.h:92
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
set_metadata_int
static int set_metadata_int(AVDictionary **dict, const char *key, int value, int allow_zero)
Definition: cinedec.c:76
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:55
AVPacket
This structure stores compressed data.
Definition: packet.h:499
av_dict_set
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:88
FFInputFormat
Definition: demux.h:31
avio_rl64
uint64_t avio_rl64(AVIOContext *s)
Definition: aviobuf.c:737
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
MKTAG
#define MKTAG(a, b, c, d)
Definition: macros.h:55
CFA_VRIV6
@ CFA_VRIV6
BGGR/GRBG.
Definition: cinedec.c:51
snprintf
#define snprintf
Definition: snprintf.h:34
AVFormatContext::priv_data
void * priv_data
Format private data.
Definition: avformat.h:1283
cine_read_seek
static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
Definition: cinedec.c:326
avio_feof
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
Definition: aviobuf.c:345