FFmpeg
aaxdec.c
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1 /*
2  * AAX demuxer
3  * Copyright (c) 2020 Paul B Mahol
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 #include "libavutil/intreadwrite.h"
23 #include "avformat.h"
24 #include "internal.h"
25 
26 typedef struct AAXColumn {
27  uint8_t flag;
28  uint8_t type;
29  const char *name;
30  uint32_t offset;
31  int size;
32 } AAXColumn;
33 
34 typedef struct AAXSegment {
35  int64_t start;
36  int64_t end;
37 } AAXSegment;
38 
39 typedef struct AAXContext {
40  int64_t table_size;
41  uint16_t version;
42  int64_t rows_offset;
43  int64_t strings_offset;
44  int64_t data_offset;
45  int64_t name_offset;
46  uint16_t columns;
47  uint16_t row_width;
48  uint32_t nb_segments;
49  int64_t schema_offset;
50  int64_t strings_size;
51  char *string_table;
52 
53  uint32_t current_segment;
54 
57 } AAXContext;
58 
59 static int aax_probe(const AVProbeData *p)
60 {
61  if (AV_RB32(p->buf) != MKBETAG('@','U','T','F'))
62  return 0;
63  if (AV_RB32(p->buf + 4) == 0)
64  return 0;
65  if (AV_RB16(p->buf + 8) > 1)
66  return 0;
67  if (AV_RB32(p->buf + 28) < 1)
68  return 0;
69 
70  return AVPROBE_SCORE_MAX;
71 }
72 
73 enum ColumnFlag {
77  COLUMN_FLAG_UNDEFINED = 0x8 /* shouldn't exist */
78 };
79 
80 enum ColumnType {
93  COLUMN_TYPE_UINT128 = 0x0c, /* for GUIDs */
95 };
96 
97 static int64_t get_pts(AVFormatContext *s, int64_t pos, int size)
98 {
99  AAXContext *a = s->priv_data;
100  int64_t pts = 0;
101 
102  for (int seg = 0; seg < a->current_segment; seg++)
103  pts += (a->segments[seg].end - a->segments[seg].start) / size;
104 
105  pts += ((pos - a->segments[a->current_segment].start) / size);
106 
107  return pts;
108 }
109 
111 {
112  AAXContext *a = s->priv_data;
113  AVIOContext *pb = s->pb;
114  AVCodecParameters *par;
115  AVStream *st;
116  int64_t column_offset = 0;
117  int ret, extradata_size;
118  char *codec;
119  int64_t ret64;
120 
121  avio_skip(pb, 4);
122  a->table_size = avio_rb32(pb) + 8LL;
123  a->version = avio_rb16(pb);
124  a->rows_offset = avio_rb16(pb) + 8LL;
125  a->strings_offset = avio_rb32(pb) + 8LL;
126  a->data_offset = avio_rb32(pb) + 8LL;
127  a->name_offset = avio_rb32(pb);
128  a->columns = avio_rb16(pb);
129  a->row_width = avio_rb16(pb);
130  a->nb_segments = avio_rb32(pb);
131 
132  if (a->nb_segments < 1)
133  return AVERROR_INVALIDDATA;
134 
135  a->schema_offset = 0x20;
136  a->strings_size = a->data_offset - a->strings_offset;
137 
138  if (a->rows_offset > a->table_size ||
139  a->strings_offset > a->table_size ||
140  a->data_offset > a->table_size)
141  return AVERROR_INVALIDDATA;
142  if (a->strings_size <= 0 || a->name_offset >= a->strings_size ||
143  a->strings_size > UINT16_MAX)
144  return AVERROR_INVALIDDATA;
145  if (a->columns <= 0)
146  return AVERROR_INVALIDDATA;
147 
148  a->segments = av_calloc(a->nb_segments, sizeof(*a->segments));
149  if (!a->segments)
150  return AVERROR(ENOMEM);
151 
152  a->xcolumns = av_calloc(a->columns, sizeof(*a->xcolumns));
153  if (!a->xcolumns)
154  return AVERROR(ENOMEM);
155 
156  a->string_table = av_calloc(a->strings_size + 1, sizeof(*a->string_table));
157  if (!a->string_table)
158  return AVERROR(ENOMEM);
159 
160  for (int c = 0; c < a->columns; c++) {
161  uint8_t info = avio_r8(pb);
162  uint32_t offset = avio_rb32(pb);
163  int value_size;
164 
165  if (offset >= a->strings_size)
166  return AVERROR_INVALIDDATA;
167 
168  a->xcolumns[c].flag = info >> 4;
169  a->xcolumns[c].type = info & 0x0F;
170 
171  switch (a->xcolumns[c].type) {
172  case COLUMN_TYPE_UINT8:
173  case COLUMN_TYPE_SINT8:
174  value_size = 0x01;
175  break;
176  case COLUMN_TYPE_UINT16:
177  case COLUMN_TYPE_SINT16:
178  value_size = 0x02;
179  break;
180  case COLUMN_TYPE_UINT32:
181  case COLUMN_TYPE_SINT32:
182  case COLUMN_TYPE_FLOAT:
183  case COLUMN_TYPE_STRING:
184  value_size = 0x04;
185  break;
186  case COLUMN_TYPE_VLDATA:
187  value_size = 0x08;
188  break;
189  case COLUMN_TYPE_UINT128:
190  value_size = 0x10;
191  break;
192  default:
193  return AVERROR_INVALIDDATA;
194  }
195 
196  a->xcolumns[c].size = value_size;
197 
198  if (a->xcolumns[c].flag & COLUMN_FLAG_NAME)
199  a->xcolumns[c].name = a->string_table + offset;
200 
201  if (a->xcolumns[c].flag & COLUMN_FLAG_DEFAULT) {
202  /* data is found relative to columns start */
203  a->xcolumns[c].offset = avio_tell(pb) - a->schema_offset;
204  avio_skip(pb, value_size);
205  }
206 
207  if (a->xcolumns[c].flag & COLUMN_FLAG_ROW) {
208  /* data is found relative to row start */
209  a->xcolumns[c].offset = column_offset;
210  column_offset += value_size;
211  }
212  }
213 
214  ret = ret64 = avio_seek(pb, a->strings_offset, SEEK_SET);
215  if (ret64 < 0)
216  return ret;
217 
218  ret = avio_read(pb, a->string_table, a->strings_size);
219  if (ret != a->strings_size) {
220  if (ret < 0)
221  return ret;
222  return AVERROR(EIO);
223  }
224 
225  for (int c = 0; c < a->columns; c++) {
226  int64_t data_offset = 0;
227  int64_t col_offset;
228  int flag, type;
229 
230  if (!a->xcolumns[c].name || strcmp(a->xcolumns[c].name, "data"))
231  continue;
232 
233  type = a->xcolumns[c].type;
234  flag = a->xcolumns[c].flag;
235  col_offset = a->xcolumns[c].offset;
236 
237  for (uint64_t r = 0; r < a->nb_segments; r++) {
238  if (flag & COLUMN_FLAG_DEFAULT) {
239  data_offset = a->schema_offset + col_offset;
240  } else if (flag & COLUMN_FLAG_ROW) {
241  data_offset = a->rows_offset + r * a->row_width + col_offset;
242  } else
243  return AVERROR_INVALIDDATA;
244 
245  ret = ret64 = avio_seek(pb, data_offset, SEEK_SET);
246  if (ret64 < 0)
247  return ret;
248 
249  if (type == COLUMN_TYPE_VLDATA) {
250  int64_t start, size;
251 
252  start = avio_rb32(pb);
253  size = avio_rb32(pb);
254  a->segments[r].start = start + a->data_offset;
255  a->segments[r].end = a->segments[r].start + size;
256  } else
257  return AVERROR_INVALIDDATA;
258  }
259  }
260 
261  if (!a->segments[0].end)
262  return AVERROR_INVALIDDATA;
263 
264  st = avformat_new_stream(s, NULL);
265  if (!st)
266  return AVERROR(ENOMEM);
267  st->start_time = 0;
268  par = s->streams[0]->codecpar;
270 
271  codec = a->string_table + a->name_offset;
272  if (!strcmp(codec, "AAX")) {
274  ret64 = avio_seek(pb, a->segments[0].start, SEEK_SET);
275  if (ret64 < 0 || avio_rb16(pb) != 0x8000)
276  return AVERROR_INVALIDDATA;
277  extradata_size = avio_rb16(pb) + 4;
278  if (extradata_size < 12)
279  return AVERROR_INVALIDDATA;
280  avio_seek(pb, -4, SEEK_CUR);
281  ret = ff_get_extradata(s, par, pb, extradata_size);
282  if (ret < 0)
283  return ret;
284  par->channels = AV_RB8 (par->extradata + 7);
285  par->sample_rate = AV_RB32(par->extradata + 8);
286  if (!par->channels || !par->sample_rate)
287  return AVERROR_INVALIDDATA;
288 
289  avpriv_set_pts_info(st, 64, 32, par->sample_rate);
290  /*} else if (!strcmp(codec, "HCA") ){
291  par->codec_id = AV_CODEC_ID_HCA;*/
292  } else {
293  return AVERROR_INVALIDDATA;
294  }
295 
296  return 0;
297 }
298 
300 {
301  AAXContext *a = s->priv_data;
302  AVCodecParameters *par = s->streams[0]->codecpar;
303  AVIOContext *pb = s->pb;
304  const int size = 18 * par->channels;
305  int ret, extradata_size = 0;
306  uint8_t *extradata = NULL;
307  int skip = 0;
308 
309  if (avio_feof(pb))
310  return AVERROR_EOF;
311 
312  pkt->pos = avio_tell(pb);
313 
314  for (uint32_t seg = 0; seg < a->nb_segments; seg++) {
315  int64_t start = a->segments[seg].start;
316  int64_t end = a->segments[seg].end;
317 
318  if (pkt->pos >= start && pkt->pos <= end) {
319  a->current_segment = seg;
320  if (par->codec_id == AV_CODEC_ID_ADPCM_ADX)
321  skip = (end - start) - ((end - start) / size) * size;
322  break;
323  }
324  }
325 
326  if (pkt->pos >= a->segments[a->current_segment].end - skip) {
327  if (a->current_segment + 1 == a->nb_segments)
328  return AVERROR_EOF;
329  a->current_segment++;
330  avio_seek(pb, a->segments[a->current_segment].start, SEEK_SET);
331 
332  if (par->codec_id == AV_CODEC_ID_ADPCM_ADX) {
333  if (avio_rb16(pb) != 0x8000)
334  return AVERROR_INVALIDDATA;
335  extradata_size = avio_rb16(pb) + 4;
336  avio_seek(pb, -4, SEEK_CUR);
337  if (extradata_size < 12)
338  return AVERROR_INVALIDDATA;
339  extradata = av_malloc(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
340  if (!extradata)
341  return AVERROR(ENOMEM);
342  if (avio_read(pb, extradata, extradata_size) != extradata_size) {
343  av_free(extradata);
344  return AVERROR(EIO);
345  }
346  memset(extradata + extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
347  }
348  }
349 
350  ret = av_get_packet(pb, pkt, size);
351  if (ret != size) {
352  av_free(extradata);
353  return ret < 0 ? ret : AVERROR(EIO);
354  }
355  pkt->duration = 1;
356  pkt->stream_index = 0;
357  pkt->pts = get_pts(s, pkt->pos, size);
358 
359  if (extradata) {
360  ret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, extradata, extradata_size);
361  if (ret < 0) {
362  av_free(extradata);
363  return ret;
364  }
365  }
366 
367  return ret;
368 }
369 
371 {
372  AAXContext *a = s->priv_data;
373 
374  av_freep(&a->segments);
375  av_freep(&a->xcolumns);
376  av_freep(&a->string_table);
377 
378  return 0;
379 }
380 
382  .name = "aax",
383  .long_name = NULL_IF_CONFIG_SMALL("CRI AAX"),
384  .priv_data_size = sizeof(AAXContext),
385  .flags_internal = FF_FMT_INIT_CLEANUP,
390  .extensions = "aax",
392 };
AAXSegment::start
int64_t start
Definition: aaxdec.c:35
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
FF_FMT_INIT_CLEANUP
#define FF_FMT_INIT_CLEANUP
For an AVInputFormat with this flag set read_close() needs to be called by the caller upon read_heade...
Definition: internal.h:50
r
const char * r
Definition: vf_curves.c:116
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
AAXSegment::end
int64_t end
Definition: aaxdec.c:36
avformat_new_stream
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: utils.c:4374
COLUMN_TYPE_DOUBLE
@ COLUMN_TYPE_DOUBLE
Definition: aaxdec.c:90
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:56
ff_get_extradata
int ff_get_extradata(AVFormatContext *s, AVCodecParameters *par, AVIOContext *pb, int size)
Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0 and f...
Definition: utils.c:3282
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
AAXContext::segments
AAXSegment * segments
Definition: aaxdec.c:56
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:55
COLUMN_TYPE_UNDEFINED
@ COLUMN_TYPE_UNDEFINED
Definition: aaxdec.c:94
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:391
aax_probe
static int aax_probe(const AVProbeData *p)
Definition: aaxdec.c:59
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
AVPROBE_SCORE_MAX
#define AVPROBE_SCORE_MAX
maximum score
Definition: avformat.h:458
AVCodecParameters::channels
int channels
Audio only.
Definition: codec_par.h:166
av_packet_add_side_data
int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type, uint8_t *data, size_t size)
Wrap an existing array as a packet side data.
Definition: avpacket.c:186
COLUMN_TYPE_UINT128
@ COLUMN_TYPE_UINT128
Definition: aaxdec.c:93
read_close
static av_cold int read_close(AVFormatContext *ctx)
Definition: libcdio.c:141
avio_tell
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:538
AVFMT_GENERIC_INDEX
#define AVFMT_GENERIC_INDEX
Use generic index building code.
Definition: avformat.h:468
type
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 type
Definition: writing_filters.txt:86
pts
static int64_t pts
Definition: transcode_aac.c:653
COLUMN_TYPE_SINT32
@ COLUMN_TYPE_SINT32
Definition: aaxdec.c:86
aax_read_packet
static int aax_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: aaxdec.c:299
AAXContext::columns
uint16_t columns
Definition: aaxdec.c:46
AAXContext::string_table
char * string_table
Definition: aaxdec.c:51
aax_read_close
static int aax_read_close(AVFormatContext *s)
Definition: aaxdec.c:370
avio_rb32
unsigned int avio_rb32(AVIOContext *s)
Definition: aviobuf.c:764
pkt
AVPacket * pkt
Definition: movenc.c:59
AAXColumn
Definition: aaxdec.c:26
AVInputFormat
Definition: avformat.h:626
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:257
AVInputFormat::name
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:631
AVProbeData::buf
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
Definition: avformat.h:448
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
info
MIPS optimizations info
Definition: mips.txt:2
COLUMN_TYPE_SINT16
@ COLUMN_TYPE_SINT16
Definition: aaxdec.c:84
AAXContext::current_segment
uint32_t current_segment
Definition: aaxdec.c:53
AVFormatContext
Format I/O context.
Definition: avformat.h:1107
internal.h
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:527
get_pts
static int64_t get_pts(AVFormatContext *s, int64_t pos, int size)
Definition: aaxdec.c:97
NULL
#define NULL
Definition: coverity.c:32
read_probe
static int read_probe(const AVProbeData *pd)
Definition: jvdec.c:55
COLUMN_TYPE_SINT64
@ COLUMN_TYPE_SINT64
Definition: aaxdec.c:88
AVProbeData
This structure contains the data a format has to probe a file.
Definition: avformat.h:446
AAXColumn::name
const char * name
Definition: aaxdec.c:29
COLUMN_FLAG_DEFAULT
@ COLUMN_FLAG_DEFAULT
Definition: aaxdec.c:75
COLUMN_TYPE_UINT8
@ COLUMN_TYPE_UINT8
Definition: aaxdec.c:81
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
AVCodecParameters::sample_rate
int sample_rate
Audio only.
Definition: codec_par.h:170
COLUMN_TYPE_UINT64
@ COLUMN_TYPE_UINT64
Definition: aaxdec.c:87
AAXContext::table_size
int64_t table_size
Definition: aaxdec.c:40
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
AV_CODEC_ID_ADPCM_ADX
@ AV_CODEC_ID_ADPCM_ADX
Definition: codec_id.h:361
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:116
avpriv_set_pts_info
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:4799
ColumnFlag
ColumnFlag
Definition: aaxdec.c:73
COLUMN_FLAG_ROW
@ COLUMN_FLAG_ROW
Definition: aaxdec.c:76
size
int size
Definition: twinvq_data.h:10344
AAXContext::rows_offset
int64_t rows_offset
Definition: aaxdec.c:42
AV_RB32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:96
MKBETAG
#define MKBETAG(a, b, c, d)
Definition: common.h:479
COLUMN_TYPE_VLDATA
@ COLUMN_TYPE_VLDATA
Definition: aaxdec.c:92
AAXContext::strings_offset
int64_t strings_offset
Definition: aaxdec.c:43
avio_r8
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:607
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
offset
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 offset
Definition: writing_filters.txt:86
AAXContext::data_offset
int64_t data_offset
Definition: aaxdec.c:44
ff_aax_demuxer
const AVInputFormat ff_aax_demuxer
Definition: aaxdec.c:381
AAXContext::name_offset
int64_t name_offset
Definition: aaxdec.c:45
AAXSegment
Definition: aaxdec.c:34
flag
#define flag(name)
Definition: cbs_av1.c:553
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:366
AAXColumn::type
uint8_t type
Definition: aaxdec.c:28
COLUMN_FLAG_UNDEFINED
@ COLUMN_FLAG_UNDEFINED
Definition: aaxdec.c:77
COLUMN_TYPE_STRING
@ COLUMN_TYPE_STRING
Definition: aaxdec.c:91
AAXContext::schema_offset
int64_t schema_offset
Definition: aaxdec.c:49
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:281
AAXColumn::size
int size
Definition: aaxdec.c:31
ret
ret
Definition: filter_design.txt:187
read_packet
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
Definition: avio_reading.c:42
AVStream
Stream structure.
Definition: avformat.h:847
avio_seek
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:243
avio_rb16
unsigned int avio_rb16(AVIOContext *s)
Definition: aviobuf.c:749
COLUMN_TYPE_FLOAT
@ COLUMN_TYPE_FLOAT
Definition: aaxdec.c:89
pos
unsigned int pos
Definition: spdifenc.c:412
avformat.h
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
AAXColumn::flag
uint8_t flag
Definition: aaxdec.c:27
COLUMN_TYPE_SINT8
@ COLUMN_TYPE_SINT8
Definition: aaxdec.c:82
AAXContext::strings_size
int64_t strings_size
Definition: aaxdec.c:50
aax_read_header
static int aax_read_header(AVFormatContext *s)
Definition: aaxdec.c:110
COLUMN_TYPE_UINT16
@ COLUMN_TYPE_UINT16
Definition: aaxdec.c:83
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Definition: mem.c:251
AV_PKT_DATA_NEW_EXTRADATA
@ AV_PKT_DATA_NEW_EXTRADATA
The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format that the extradata buffer was...
Definition: packet.h:55
avio_read
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:616
AV_RB8
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_WB16 unsigned int_TMPL AV_RB8
Definition: bytestream.h:99
AVPacket::stream_index
int stream_index
Definition: packet.h:375
AAXContext
Definition: aaxdec.c:39
avio_skip
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:327
AAXContext::row_width
uint16_t row_width
Definition: aaxdec.c:47
AAXContext::version
uint16_t version
Definition: aaxdec.c:41
COLUMN_TYPE_UINT32
@ COLUMN_TYPE_UINT32
Definition: aaxdec.c:85
ColumnType
ColumnType
Definition: aaxdec.c:80
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
AVPacket
This structure stores compressed data.
Definition: packet.h:350
AAXContext::nb_segments
uint32_t nb_segments
Definition: aaxdec.c:48
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AVPacket::pos
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:393
COLUMN_FLAG_NAME
@ COLUMN_FLAG_NAME
Definition: aaxdec.c:74
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
AVStream::start_time
int64_t start_time
Decoding: pts of the first frame of the stream in presentation order, in stream time base.
Definition: avformat.h:880
AAXColumn::offset
uint32_t offset
Definition: aaxdec.c:30
AV_RB16
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:98
AAXContext::xcolumns
AAXColumn * xcolumns
Definition: aaxdec.c:55
avio_feof
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
Definition: aviobuf.c:354