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 "avio_internal.h"
25 #include "demux.h"
26 #include "internal.h"
27 
28 typedef struct AAXColumn {
29  uint8_t flag;
30  uint8_t type;
31  const char *name;
32  uint32_t offset;
33  int size;
34 } AAXColumn;
35 
36 typedef struct AAXSegment {
37  int64_t start;
38  int64_t end;
39 } AAXSegment;
40 
41 typedef struct AAXContext {
42  int64_t table_size;
43  uint16_t version;
44  int64_t rows_offset;
45  int64_t strings_offset;
46  int64_t data_offset;
47  int64_t name_offset;
48  uint16_t columns;
49  uint16_t row_width;
50  uint32_t nb_segments;
51  int64_t schema_offset;
52  int64_t strings_size;
53  char *string_table;
54 
55  uint32_t current_segment;
56 
59 } AAXContext;
60 
61 static int aax_probe(const AVProbeData *p)
62 {
63  if (AV_RB32(p->buf) != MKBETAG('@','U','T','F'))
64  return 0;
65  if (AV_RB32(p->buf + 4) == 0)
66  return 0;
67  if (AV_RB16(p->buf + 8) > 1)
68  return 0;
69  if (AV_RB32(p->buf + 28) < 1)
70  return 0;
71 
72  return AVPROBE_SCORE_MAX;
73 }
74 
75 enum ColumnFlag {
79  COLUMN_FLAG_UNDEFINED = 0x8 /* shouldn't exist */
80 };
81 
82 enum ColumnType {
95  COLUMN_TYPE_UINT128 = 0x0c, /* for GUIDs */
97 };
98 
99 static int64_t get_pts(AVFormatContext *s, int64_t pos, int size)
100 {
101  AAXContext *a = s->priv_data;
102  int64_t pts = 0;
103 
104  for (int seg = 0; seg < a->current_segment; seg++)
105  pts += (a->segments[seg].end - a->segments[seg].start) / size;
106 
107  pts += ((pos - a->segments[a->current_segment].start) / size);
108 
109  return pts;
110 }
111 
113 {
114  AAXContext *a = s->priv_data;
115  AVIOContext *pb = s->pb;
116  AVCodecParameters *par;
117  AVStream *st;
118  int64_t column_offset = 0;
119  int ret, extradata_size;
120  char *codec;
121  int64_t ret64;
122 
123  avio_skip(pb, 4);
124  a->table_size = avio_rb32(pb) + 8LL;
125  a->version = avio_rb16(pb);
126  a->rows_offset = avio_rb16(pb) + 8LL;
127  a->strings_offset = avio_rb32(pb) + 8LL;
128  a->data_offset = avio_rb32(pb) + 8LL;
129  a->name_offset = avio_rb32(pb);
130  a->columns = avio_rb16(pb);
131  a->row_width = avio_rb16(pb);
132  a->nb_segments = avio_rb32(pb);
133 
134  if (a->nb_segments < 1)
135  return AVERROR_INVALIDDATA;
136 
137  a->schema_offset = 0x20;
138  a->strings_size = a->data_offset - a->strings_offset;
139 
140  if (a->rows_offset > a->table_size ||
141  a->strings_offset > a->table_size ||
142  a->data_offset > a->table_size)
143  return AVERROR_INVALIDDATA;
144  if (a->strings_size <= 0 || a->name_offset >= a->strings_size ||
145  a->strings_size > UINT16_MAX)
146  return AVERROR_INVALIDDATA;
147  if (a->columns <= 0)
148  return AVERROR_INVALIDDATA;
149 
150  a->segments = av_calloc(a->nb_segments, sizeof(*a->segments));
151  if (!a->segments)
152  return AVERROR(ENOMEM);
153 
154  a->xcolumns = av_calloc(a->columns, sizeof(*a->xcolumns));
155  if (!a->xcolumns)
156  return AVERROR(ENOMEM);
157 
158  a->string_table = av_calloc(a->strings_size + 1, sizeof(*a->string_table));
159  if (!a->string_table)
160  return AVERROR(ENOMEM);
161 
162  for (int c = 0; c < a->columns; c++) {
163  uint8_t info = avio_r8(pb);
164  uint32_t offset = avio_rb32(pb);
165  int value_size;
166 
167  if (offset >= a->strings_size)
168  return AVERROR_INVALIDDATA;
169 
170  a->xcolumns[c].flag = info >> 4;
171  a->xcolumns[c].type = info & 0x0F;
172 
173  switch (a->xcolumns[c].type) {
174  case COLUMN_TYPE_UINT8:
175  case COLUMN_TYPE_SINT8:
176  value_size = 0x01;
177  break;
178  case COLUMN_TYPE_UINT16:
179  case COLUMN_TYPE_SINT16:
180  value_size = 0x02;
181  break;
182  case COLUMN_TYPE_UINT32:
183  case COLUMN_TYPE_SINT32:
184  case COLUMN_TYPE_FLOAT:
185  case COLUMN_TYPE_STRING:
186  value_size = 0x04;
187  break;
188  case COLUMN_TYPE_VLDATA:
189  value_size = 0x08;
190  break;
191  case COLUMN_TYPE_UINT128:
192  value_size = 0x10;
193  break;
194  default:
195  return AVERROR_INVALIDDATA;
196  }
197 
198  a->xcolumns[c].size = value_size;
199 
200  if (a->xcolumns[c].flag & COLUMN_FLAG_NAME)
201  a->xcolumns[c].name = a->string_table + offset;
202 
203  if (a->xcolumns[c].flag & COLUMN_FLAG_DEFAULT) {
204  /* data is found relative to columns start */
205  a->xcolumns[c].offset = avio_tell(pb) - a->schema_offset;
206  avio_skip(pb, value_size);
207  }
208 
209  if (a->xcolumns[c].flag & COLUMN_FLAG_ROW) {
210  /* data is found relative to row start */
211  a->xcolumns[c].offset = column_offset;
212  column_offset += value_size;
213  }
214  }
215 
216  ret = ret64 = avio_seek(pb, a->strings_offset, SEEK_SET);
217  if (ret64 < 0)
218  return ret;
219 
220  ret = ffio_read_size(pb, a->string_table, a->strings_size);
221  if (ret < 0)
222  return ret;
223 
224  for (int c = 0; c < a->columns; c++) {
225  int64_t data_offset = 0;
226  int64_t col_offset;
227  int flag, type;
228 
229  if (!a->xcolumns[c].name || strcmp(a->xcolumns[c].name, "data"))
230  continue;
231 
232  type = a->xcolumns[c].type;
233  flag = a->xcolumns[c].flag;
234  col_offset = a->xcolumns[c].offset;
235 
236  for (uint64_t r = 0; r < a->nb_segments; r++) {
237  if (flag & COLUMN_FLAG_DEFAULT) {
238  data_offset = a->schema_offset + col_offset;
239  } else if (flag & COLUMN_FLAG_ROW) {
240  data_offset = a->rows_offset + r * a->row_width + col_offset;
241  } else
242  return AVERROR_INVALIDDATA;
243 
244  ret = ret64 = avio_seek(pb, data_offset, SEEK_SET);
245  if (ret64 < 0)
246  return ret;
247 
248  if (type == COLUMN_TYPE_VLDATA) {
249  int64_t start, size;
250 
251  start = avio_rb32(pb);
252  size = avio_rb32(pb);
253  if (!size)
254  return AVERROR_INVALIDDATA;
255  a->segments[r].start = start + a->data_offset;
256  a->segments[r].end = a->segments[r].start + size;
257  if (r &&
258  a->segments[r].start < a->segments[r-1].end &&
259  a->segments[r].end > a->segments[r-1].start)
260  return AVERROR_INVALIDDATA;
261  } else
262  return AVERROR_INVALIDDATA;
263  }
264  }
265 
266  if (!a->segments[0].end)
267  return AVERROR_INVALIDDATA;
268 
269  st = avformat_new_stream(s, NULL);
270  if (!st)
271  return AVERROR(ENOMEM);
272  st->start_time = 0;
273  par = s->streams[0]->codecpar;
275 
276  codec = a->string_table + a->name_offset;
277  if (!strcmp(codec, "AAX")) {
279  ret64 = avio_seek(pb, a->segments[0].start, SEEK_SET);
280  if (ret64 < 0 || avio_rb16(pb) != 0x8000)
281  return AVERROR_INVALIDDATA;
282  extradata_size = avio_rb16(pb) + 4;
283  if (extradata_size < 12)
284  return AVERROR_INVALIDDATA;
285  avio_seek(pb, -4, SEEK_CUR);
286  ret = ff_get_extradata(s, par, pb, extradata_size);
287  if (ret < 0)
288  return ret;
289  par->ch_layout.nb_channels = AV_RB8 (par->extradata + 7);
290  par->sample_rate = AV_RB32(par->extradata + 8);
291  if (!par->ch_layout.nb_channels || !par->sample_rate)
292  return AVERROR_INVALIDDATA;
293 
294  avpriv_set_pts_info(st, 64, 32, par->sample_rate);
295  /*} else if (!strcmp(codec, "HCA") ){
296  par->codec_id = AV_CODEC_ID_HCA;*/
297  } else {
298  return AVERROR_INVALIDDATA;
299  }
300 
301  return 0;
302 }
303 
305 {
306  AAXContext *a = s->priv_data;
307  AVCodecParameters *par = s->streams[0]->codecpar;
308  AVIOContext *pb = s->pb;
309  const int size = 18 * par->ch_layout.nb_channels;
310  int ret, extradata_size = 0;
311  uint8_t *extradata = NULL;
312  int skip = 0;
313 
314  if (avio_feof(pb))
315  return AVERROR_EOF;
316 
317  pkt->pos = avio_tell(pb);
318 
319  for (uint32_t seg = 0; seg < a->nb_segments; seg++) {
320  int64_t start = a->segments[seg].start;
321  int64_t end = a->segments[seg].end;
322 
323  if (pkt->pos >= start && pkt->pos <= end) {
324  a->current_segment = seg;
325  if (par->codec_id == AV_CODEC_ID_ADPCM_ADX)
326  skip = (end - start) - ((end - start) / size) * size;
327  break;
328  }
329  }
330 
331  if (pkt->pos >= a->segments[a->current_segment].end - skip) {
332  if (a->current_segment + 1 == a->nb_segments)
333  return AVERROR_EOF;
334  a->current_segment++;
335  avio_seek(pb, a->segments[a->current_segment].start, SEEK_SET);
336 
337  if (par->codec_id == AV_CODEC_ID_ADPCM_ADX) {
338  if (avio_rb16(pb) != 0x8000)
339  return AVERROR_INVALIDDATA;
340  extradata_size = avio_rb16(pb) + 4;
341  avio_seek(pb, -4, SEEK_CUR);
342  if (extradata_size < 12)
343  return AVERROR_INVALIDDATA;
344  extradata = av_malloc(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
345  if (!extradata)
346  return AVERROR(ENOMEM);
347  if (avio_read(pb, extradata, extradata_size) != extradata_size) {
348  av_free(extradata);
349  return AVERROR(EIO);
350  }
351  memset(extradata + extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
352  }
353  }
354 
355  ret = av_get_packet(pb, pkt, size);
356  if (ret != size) {
357  av_free(extradata);
358  return ret < 0 ? ret : AVERROR(EIO);
359  }
360  pkt->duration = 1;
361  pkt->stream_index = 0;
362  pkt->pts = get_pts(s, pkt->pos, size);
363 
364  if (extradata) {
365  ret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, extradata, extradata_size);
366  if (ret < 0) {
367  av_free(extradata);
368  return ret;
369  }
370  }
371 
372  return ret;
373 }
374 
376 {
377  AAXContext *a = s->priv_data;
378 
379  av_freep(&a->segments);
380  av_freep(&a->xcolumns);
381  av_freep(&a->string_table);
382 
383  return 0;
384 }
385 
387  .name = "aax",
388  .long_name = NULL_IF_CONFIG_SMALL("CRI AAX"),
389  .priv_data_size = sizeof(AAXContext),
390  .flags_internal = FF_FMT_INIT_CLEANUP,
395  .extensions = "aax",
397 };
AAXSegment::start
int64_t start
Definition: aaxdec.c:37
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:75
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:47
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:38
avformat_new_stream
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
Definition: options.c:237
COLUMN_TYPE_DOUBLE
@ COLUMN_TYPE_DOUBLE
Definition: aaxdec.c:92
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:57
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:53
AAXContext::segments
AAXSegment * segments
Definition: aaxdec.c:58
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
COLUMN_TYPE_UNDEFINED
@ COLUMN_TYPE_UNDEFINED
Definition: aaxdec.c:96
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:392
aax_probe
static int aax_probe(const AVProbeData *p)
Definition: aaxdec.c:61
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition: channel_layout.h:303
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
ff_get_extradata
int ff_get_extradata(void *logctx, 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: demux_utils.c:355
AVPROBE_SCORE_MAX
#define AVPROBE_SCORE_MAX
maximum score
Definition: avformat.h:465
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:763
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:196
COLUMN_TYPE_UINT128
@ COLUMN_TYPE_UINT128
Definition: aaxdec.c:95
read_close
static av_cold int read_close(AVFormatContext *ctx)
Definition: libcdio.c:143
avio_tell
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
Definition: avio.h:505
AVFMT_GENERIC_INDEX
#define AVFMT_GENERIC_INDEX
Use generic index building code.
Definition: avformat.h:482
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:654
COLUMN_TYPE_SINT32
@ COLUMN_TYPE_SINT32
Definition: aaxdec.c:88
aax_read_packet
static int aax_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: aaxdec.c:304
AAXContext::columns
uint16_t columns
Definition: aaxdec.c:48
AAXContext::string_table
char * string_table
Definition: aaxdec.c:53
aax_read_close
static int aax_read_close(AVFormatContext *s)
Definition: aaxdec.c:375
avio_rb32
unsigned int avio_rb32(AVIOContext *s)
Definition: aviobuf.c:790
pkt
AVPacket * pkt
Definition: movenc.c:59
AAXColumn
Definition: aaxdec.c:28
AVInputFormat
Definition: avformat.h:656
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:256
AVInputFormat::name
const char * name
A comma separated list of short names for the format.
Definition: avformat.h:661
AVProbeData::buf
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
Definition: avformat.h:455
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:86
AAXContext::current_segment
uint32_t current_segment
Definition: aaxdec.c:55
AVFormatContext
Format I/O context.
Definition: avformat.h:1216
internal.h
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:530
get_pts
static int64_t get_pts(AVFormatContext *s, int64_t pos, int size)
Definition: aaxdec.c:99
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:90
AVProbeData
This structure contains the data a format has to probe a file.
Definition: avformat.h:453
AAXColumn::name
const char * name
Definition: aaxdec.c:31
COLUMN_FLAG_DEFAULT
@ COLUMN_FLAG_DEFAULT
Definition: aaxdec.c:77
COLUMN_TYPE_UINT8
@ COLUMN_TYPE_UINT8
Definition: aaxdec.c:83
AVCodecParameters::ch_layout
AVChannelLayout ch_layout
Audio only.
Definition: codec_par.h:212
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:177
COLUMN_TYPE_UINT64
@ COLUMN_TYPE_UINT64
Definition: aaxdec.c:89
AAXContext::table_size
int64_t table_size
Definition: aaxdec.c:42
AVIOContext
Bytestream IO Context.
Definition: avio.h:162
AV_CODEC_ID_ADPCM_ADX
@ AV_CODEC_ID_ADPCM_ADX
Definition: codec_id.h:373
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:115
ColumnFlag
ColumnFlag
Definition: aaxdec.c:75
COLUMN_FLAG_ROW
@ COLUMN_FLAG_ROW
Definition: aaxdec.c:78
size
int size
Definition: twinvq_data.h:10344
AAXContext::rows_offset
int64_t rows_offset
Definition: aaxdec.c:44
MKBETAG
#define MKBETAG(a, b, c, d)
Definition: macros.h:56
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
COLUMN_TYPE_VLDATA
@ COLUMN_TYPE_VLDATA
Definition: aaxdec.c:94
AAXContext::strings_offset
int64_t strings_offset
Definition: aaxdec.c:45
avio_r8
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:632
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:46
ff_aax_demuxer
const AVInputFormat ff_aax_demuxer
Definition: aaxdec.c:386
AAXContext::name_offset
int64_t name_offset
Definition: aaxdec.c:47
AAXSegment
Definition: aaxdec.c:36
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:367
avio_internal.h
AAXColumn::type
uint8_t type
Definition: aaxdec.c:30
COLUMN_FLAG_UNDEFINED
@ COLUMN_FLAG_UNDEFINED
Definition: aaxdec.c:79
COLUMN_TYPE_STRING
@ COLUMN_TYPE_STRING
Definition: aaxdec.c:93
demux.h
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Definition: mem.c:272
AAXContext::schema_offset
int64_t schema_offset
Definition: aaxdec.c:51
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:102
AAXColumn::size
int size
Definition: aaxdec.c:33
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:948
avio_seek
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
Definition: aviobuf.c:260
avio_rb16
unsigned int avio_rb16(AVIOContext *s)
Definition: aviobuf.c:775
COLUMN_TYPE_FLOAT
@ COLUMN_TYPE_FLOAT
Definition: aaxdec.c:91
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:29
COLUMN_TYPE_SINT8
@ COLUMN_TYPE_SINT8
Definition: aaxdec.c:84
AAXContext::strings_size
int64_t strings_size
Definition: aaxdec.c:52
aax_read_header
static int aax_read_header(AVFormatContext *s)
Definition: aaxdec.c:112
COLUMN_TYPE_UINT16
@ COLUMN_TYPE_UINT16
Definition: aaxdec.c:85
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:56
avio_read
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:641
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:376
AAXContext
Definition: aaxdec.c:41
avio_skip
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:347
AAXContext::row_width
uint16_t row_width
Definition: aaxdec.c:49
AAXContext::version
uint16_t version
Definition: aaxdec.c:43
COLUMN_TYPE_UINT32
@ COLUMN_TYPE_UINT32
Definition: aaxdec.c:87
ColumnType
ColumnType
Definition: aaxdec.c:82
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:61
AVPacket
This structure stores compressed data.
Definition: packet.h:351
AAXContext::nb_segments
uint32_t nb_segments
Definition: aaxdec.c:50
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
AVPacket::pos
int64_t pos
byte position in stream, -1 if unknown
Definition: packet.h:394
COLUMN_FLAG_NAME
@ COLUMN_FLAG_NAME
Definition: aaxdec.c:76
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
ffio_read_size
int ffio_read_size(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:691
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:988
AAXColumn::offset
uint32_t offset
Definition: aaxdec.c:32
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:57
avio_feof
int avio_feof(AVIOContext *s)
Similar to feof() but also returns nonzero on read errors.
Definition: aviobuf.c:375