FFmpeg
argo_cvg.c
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1 /*
2  * Argonaut Games CVG (de)muxer
3  *
4  * Copyright (C) 2021 Zane van Iperen (zane@zanevaniperen.com)
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "config_components.h"
24 
25 #include "libavutil/avstring.h"
27 #include "avformat.h"
28 #include "demux.h"
29 #include "internal.h"
30 #include "mux.h"
31 #include "libavutil/opt.h"
32 #include "libavutil/intreadwrite.h"
33 
34 /*
35  * .CVG files are essentially PSX ADPCM wrapped with a size and checksum.
36  * Found in the PSX versions of the game.
37  */
38 
39 #define ARGO_CVG_HEADER_SIZE 12
40 #define ARGO_CVG_BLOCK_ALIGN 0x10
41 #define ARGO_CVG_NB_BLOCKS 32
42 #define ARGO_CVG_SAMPLES_PER_BLOCK 28
43 
44 typedef struct ArgoCVGHeader {
45  uint32_t size; /*< File size -8 (this + trailing checksum) */
46  uint32_t loop; /*< Loop flag. */
47  uint32_t reverb; /*< Reverb flag. */
49 
50 typedef struct ArgoCVGDemuxContext {
52  uint32_t checksum;
53  uint32_t num_blocks;
54  uint32_t blocks_read;
56 
57 typedef struct ArgoCVGMuxContext {
58  const AVClass *class;
60  int loop;
61  int reverb;
62  uint32_t checksum;
63  size_t size;
65 
66 #if CONFIG_ARGO_CVG_DEMUXER
67 /* "Special" files that are played at a different rate. */
68 // FILE(NAME, SIZE, LOOP, REVERB, CHECKSUM, SAMPLE_RATE)
69 #define OVERRIDE_FILES(FILE) \
70  FILE(CRYS, 23592, 0, 1, 2495499, 88200) /* Beta */ \
71  FILE(REDCRY88, 38280, 0, 1, 4134848, 88200) /* Beta */ \
72  FILE(DANLOOP1, 54744, 1, 0, 5684641, 37800) /* Beta */ \
73  FILE(PICKUP88, 12904, 0, 1, 1348091, 48000) /* Beta */ \
74  FILE(SELECT1, 5080, 0, 1, 549987, 44100) /* Beta */ \
75 
76 #define MAX_FILENAME_SIZE(NAME, SIZE, LOOP, REVERB, CHECKSUM, SAMPLE_RATE) \
77  MAX_SIZE_BEFORE_ ## NAME, \
78  MAX_SIZE_UNTIL_ ## NAME ## _MINUS1 = FFMAX(sizeof(#NAME ".CVG"), MAX_SIZE_BEFORE_ ## NAME) - 1,
79 enum {
80  OVERRIDE_FILES(MAX_FILENAME_SIZE)
81  MAX_OVERRIDE_FILENAME_SIZE
82 };
83 
84 typedef struct ArgoCVGOverride {
85  const char name[MAX_OVERRIDE_FILENAME_SIZE];
87  uint32_t checksum;
88  int sample_rate;
89 } ArgoCVGOverride;
90 
91 #define FILE(NAME, SIZE, LOOP, REVERB, CHECKSUM, SAMPLE_RATE) \
92  { #NAME ".CVG", { SIZE, LOOP, REVERB }, CHECKSUM, SAMPLE_RATE },
93 static const ArgoCVGOverride overrides[] = {
94  OVERRIDE_FILES(FILE)
95 };
96 
97 static int argo_cvg_probe(const AVProbeData *p)
98 {
99  ArgoCVGHeader cvg;
100 
101  /*
102  * It's almost impossible to detect these files based
103  * on the header alone. File extension is (unfortunately)
104  * the best way forward.
105  */
106  if (!av_match_ext(p->filename, "cvg"))
107  return 0;
108 
110  return 0;
111 
112  cvg.size = AV_RL32(p->buf + 0);
113  cvg.loop = AV_RL32(p->buf + 4);
114  cvg.reverb = AV_RL32(p->buf + 8);
115 
116  if (cvg.size < 8)
117  return 0;
118 
119  if (cvg.loop != 0 && cvg.loop != 1)
120  return 0;
121 
122  if (cvg.reverb != 0 && cvg.reverb != 1)
123  return 0;
124 
125  return AVPROBE_SCORE_MAX / 4 + 1;
126 }
127 
128 static int argo_cvg_read_checksum(AVIOContext *pb, const ArgoCVGHeader *cvg, uint32_t *checksum)
129 {
130  int ret;
131  uint8_t buf[4];
132 
133  if (!(pb->seekable & AVIO_SEEKABLE_NORMAL)) {
134  *checksum = 0;
135  return 0;
136  }
137 
138  if ((ret = avio_seek(pb, cvg->size + 4, SEEK_SET)) < 0)
139  return ret;
140 
141  /* NB: Not using avio_rl32() because no error checking. */
142  if ((ret = avio_read(pb, buf, sizeof(buf))) < 0)
143  return ret;
144  else if (ret != sizeof(buf))
145  return AVERROR(EIO);
146 
147  if ((ret = avio_seek(pb, ARGO_CVG_HEADER_SIZE, SEEK_SET)) < 0)
148  return ret;
149 
150  *checksum = AV_RL32(buf);
151  return 0;
152 }
153 
154 static int argo_cvg_read_header(AVFormatContext *s)
155 {
156  int ret;
157  AVStream *st;
158  AVCodecParameters *par;
159  uint8_t buf[ARGO_CVG_HEADER_SIZE];
160  const char *filename = av_basename(s->url);
161  ArgoCVGDemuxContext *ctx = s->priv_data;
162 
163  if (!(st = avformat_new_stream(s, NULL)))
164  return AVERROR(ENOMEM);
165 
166  if ((ret = avio_read(s->pb, buf, ARGO_CVG_HEADER_SIZE)) < 0)
167  return ret;
168  else if (ret != ARGO_CVG_HEADER_SIZE)
169  return AVERROR(EIO);
170 
171  ctx->header.size = AV_RL32(buf + 0);
172  ctx->header.loop = AV_RL32(buf + 4);
173  ctx->header.reverb = AV_RL32(buf + 8);
174 
175  if (ctx->header.size < 8)
176  return AVERROR_INVALIDDATA;
177 
178  if ((ret = argo_cvg_read_checksum(s->pb, &ctx->header, &ctx->checksum)) < 0)
179  return ret;
180 
181  if ((ret = av_dict_set_int(&st->metadata, "loop", ctx->header.loop, 0)) < 0)
182  return ret;
183 
184  if ((ret = av_dict_set_int(&st->metadata, "reverb", ctx->header.reverb, 0)) < 0)
185  return ret;
186 
187  if ((ret = av_dict_set_int(&st->metadata, "checksum", ctx->checksum, 0)) < 0)
188  return ret;
189 
190  par = st->codecpar;
193  par->sample_rate = 22050;
194 
195  for (size_t i = 0; i < FF_ARRAY_ELEMS(overrides); i++) {
196  const ArgoCVGOverride *ovr = overrides + i;
197  if (ovr->header.size != ctx->header.size ||
198  ovr->header.loop != ctx->header.loop ||
199  ovr->header.reverb != ctx->header.reverb ||
200  ovr->checksum != ctx->checksum ||
201  av_strcasecmp(filename, ovr->name) != 0)
202  continue;
203 
204  av_log(s, AV_LOG_TRACE, "found override, name = %s\n", ovr->name);
205  par->sample_rate = ovr->sample_rate;
206  break;
207  }
208 
210 
211  par->bits_per_coded_sample = 4;
213  par->bit_rate = par->sample_rate * par->bits_per_coded_sample;
214 
215  ctx->num_blocks = (ctx->header.size - 8) / ARGO_CVG_BLOCK_ALIGN;
216 
217  av_log(s, AV_LOG_TRACE, "num blocks = %u\n", ctx->num_blocks);
218 
219  avpriv_set_pts_info(st, 64, 1, par->sample_rate);
220 
221  st->start_time = 0;
222  st->duration = ctx->num_blocks * ARGO_CVG_SAMPLES_PER_BLOCK;
223  st->nb_frames = ctx->num_blocks;
224  return 0;
225 }
226 
227 static int argo_cvg_read_packet(AVFormatContext *s, AVPacket *pkt)
228 {
229  int ret;
230  AVStream *st = s->streams[0];
231  ArgoCVGDemuxContext *ctx = s->priv_data;
232 
233  if (ctx->blocks_read >= ctx->num_blocks)
234  return AVERROR_EOF;
235 
236  ret = av_get_packet(s->pb, pkt, st->codecpar->block_align *
237  FFMIN(ARGO_CVG_NB_BLOCKS, ctx->num_blocks - ctx->blocks_read));
238 
239  if (ret < 0)
240  return ret;
241 
242  if (ret % st->codecpar->block_align != 0)
243  return AVERROR_INVALIDDATA;
244 
245  pkt->stream_index = 0;
247  pkt->pts = ctx->blocks_read * ARGO_CVG_SAMPLES_PER_BLOCK;
249 
250  ctx->blocks_read += ret / st->codecpar->block_align;
251 
252  return 0;
253 }
254 
255 static int argo_cvg_seek(AVFormatContext *s, int stream_index,
256  int64_t pts, int flags)
257 {
258  int64_t ret;
259  ArgoCVGDemuxContext *ctx = s->priv_data;
260 
261  if (pts != 0 || stream_index != 0)
262  return AVERROR(EINVAL);
263 
264  if ((ret = avio_seek(s->pb, ARGO_CVG_HEADER_SIZE, SEEK_SET)) < 0)
265  return ret;
266 
267  ctx->blocks_read = 0;
268  return 0;
269 }
270 
272  .p.name = "argo_cvg",
273  .p.long_name = NULL_IF_CONFIG_SMALL("Argonaut Games CVG"),
274  .priv_data_size = sizeof(ArgoCVGDemuxContext),
275  .read_probe = argo_cvg_probe,
276  .read_header = argo_cvg_read_header,
277  .read_packet = argo_cvg_read_packet,
278  .read_seek = argo_cvg_seek,
279 };
280 #endif
281 
282 #if CONFIG_ARGO_CVG_MUXER
283 static int argo_cvg_write_init(AVFormatContext *s)
284 {
285  ArgoCVGMuxContext *ctx = s->priv_data;
286  const AVCodecParameters *par = s->streams[0]->codecpar;
287 
288  if (par->ch_layout.nb_channels != 1) {
289  av_log(s, AV_LOG_ERROR, "CVG files only support 1 channel\n");
290  return AVERROR(EINVAL);
291  }
292 
293  if (par->block_align != ARGO_CVG_BLOCK_ALIGN)
294  return AVERROR(EINVAL);
295 
296  if (!ctx->skip_rate_check && par->sample_rate != 22050) {
297  av_log(s, AV_LOG_ERROR, "Sample rate must be 22050\n");
298  return AVERROR(EINVAL);
299  }
300 
301  if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL)) {
302  av_log(s, AV_LOG_ERROR, "Stream not seekable, unable to write output file\n");
303  return AVERROR(EINVAL);
304  }
305 
306  return 0;
307 }
308 
309 static int argo_cvg_write_header(AVFormatContext *s)
310 {
311  ArgoCVGMuxContext *ctx = s->priv_data;
312 
313  avio_wl32(s->pb, 0); /* Size, fixed later. */
314  avio_wl32(s->pb, !!ctx->loop);
315  avio_wl32(s->pb, !!ctx->reverb);
316 
317  ctx->checksum = !!ctx->loop + !!ctx->reverb;
318  ctx->size = 8;
319  return 0;
320 }
321 
322 static int argo_cvg_write_packet(AVFormatContext *s, AVPacket *pkt)
323 {
324  ArgoCVGMuxContext *ctx = s->priv_data;
325  AVCodecParameters *par = s->streams[0]->codecpar;
326 
327  if (pkt->size % par->block_align != 0)
328  return AVERROR_INVALIDDATA;
329 
330  avio_write(s->pb, pkt->data, pkt->size);
331 
332  ctx->size += pkt->size;
333 
334  if (ctx->size > UINT32_MAX)
335  return AVERROR_INVALIDDATA;
336 
337  for (int i = 0; i < pkt->size; i++)
338  ctx->checksum += pkt->data[i];
339 
340  return 0;
341 }
342 
343 static int argo_cvg_write_trailer(AVFormatContext *s)
344 {
345  ArgoCVGMuxContext *ctx = s->priv_data;
346  int64_t ret;
347 
348  ctx->checksum += (ctx->size & 255)
349  + ((ctx->size>> 8) & 255)
350  + ((ctx->size>>16) & 255)
351  + (ctx->size>>24);
352 
353  av_log(s, AV_LOG_TRACE, "size = %zu\n", ctx->size);
354  av_log(s, AV_LOG_TRACE, "checksum = %u\n", ctx->checksum);
355 
356  avio_wl32(s->pb, ctx->checksum);
357 
358  if ((ret = avio_seek(s->pb, 0, SEEK_SET)) < 0)
359  return ret;
360 
361  avio_wl32(s->pb, (uint32_t)ctx->size);
362  return 0;
363 }
364 
365 static const AVOption argo_cvg_options[] = {
366  {
367  .name = "skip_rate_check",
368  .help = "skip sample rate check",
369  .offset = offsetof(ArgoCVGMuxContext, skip_rate_check),
370  .type = AV_OPT_TYPE_BOOL,
371  .default_val = {.i64 = 0},
372  .min = 0,
373  .max = 1,
375  },
376  {
377  .name = "loop",
378  .help = "set loop flag",
379  .offset = offsetof(ArgoCVGMuxContext, loop),
380  .type = AV_OPT_TYPE_BOOL,
381  .default_val = {.i64 = 0},
382  .min = 0,
383  .max = 1,
385  },
386  {
387  .name = "reverb",
388  .help = "set reverb flag",
389  .offset = offsetof(ArgoCVGMuxContext, reverb),
390  .type = AV_OPT_TYPE_BOOL,
391  .default_val = {.i64 = 1},
392  .min = 0,
393  .max = 1,
395  },
396  { NULL }
397 };
398 
399 static const AVClass argo_cvg_muxer_class = {
400  .class_name = "argo_cvg_muxer",
401  .item_name = av_default_item_name,
402  .option = argo_cvg_options,
403  .version = LIBAVUTIL_VERSION_INT
404 };
405 
407  .p.name = "argo_cvg",
408  .p.long_name = NULL_IF_CONFIG_SMALL("Argonaut Games CVG"),
409  .p.extensions = "cvg",
410  .p.audio_codec = AV_CODEC_ID_ADPCM_PSX,
411  .p.video_codec = AV_CODEC_ID_NONE,
412  .p.subtitle_codec = AV_CODEC_ID_NONE,
413  .p.priv_class = &argo_cvg_muxer_class,
414  .flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH |
416  .init = argo_cvg_write_init,
417  .write_header = argo_cvg_write_header,
418  .write_packet = argo_cvg_write_packet,
419  .write_trailer = argo_cvg_write_trailer,
420  .priv_data_size = sizeof(ArgoCVGMuxContext),
421 };
422 #endif
ArgoCVGDemuxContext::num_blocks
uint32_t num_blocks
Definition: argo_cvg.c:53
name
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 minimum maximum flags name is the option name
Definition: writing_filters.txt:88
ArgoCVGHeader
Definition: argo_cvg.c:44
AVOutputFormat::name
const char * name
Definition: avformat.h:510
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
opt.h
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition: codec_par.h:51
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:47
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
ArgoCVGDemuxContext::blocks_read
uint32_t blocks_read
Definition: argo_cvg.c:54
av_strcasecmp
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:207
AVPacket::data
uint8_t * data
Definition: packet.h:524
AVOption
AVOption.
Definition: opt.h:357
AVPacket::duration
int64_t duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
Definition: packet.h:542
AVProbeData::buf_size
int buf_size
Size of buf except extra allocated bytes.
Definition: avformat.h:454
FF_OFMT_FLAG_ONLY_DEFAULT_CODECS
#define FF_OFMT_FLAG_ONLY_DEFAULT_CODECS
If this flag is set, then the only permitted audio/video/subtitle codec ids are AVOutputFormat....
Definition: mux.h:59
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition: channel_layout.h:313
sample_rate
sample_rate
Definition: ffmpeg_filter.c:424
ArgoCVGMuxContext::size
size_t size
Definition: argo_cvg.c:63
av_basename
const char * av_basename(const char *path)
Thread safe basename.
Definition: avstring.c:252
FFOutputFormat::p
AVOutputFormat p
The public AVOutputFormat.
Definition: mux.h:65
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
read_seek
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
Definition: libcdio.c:151
ARGO_CVG_SAMPLES_PER_BLOCK
#define ARGO_CVG_SAMPLES_PER_BLOCK
Definition: argo_cvg.c:42
pts
static int64_t pts
Definition: transcode_aac.c:644
AVStream::duration
int64_t duration
Decoding: duration of the stream, in stream time base.
Definition: avformat.h:802
ArgoCVGMuxContext::skip_rate_check
int skip_rate_check
Definition: argo_cvg.c:59
loop
static int loop
Definition: ffplay.c:335
ARGO_CVG_BLOCK_ALIGN
#define ARGO_CVG_BLOCK_ALIGN
Definition: argo_cvg.c:40
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:206
pkt
AVPacket * pkt
Definition: movenc.c:60
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen.c:29
AV_PKT_FLAG_CORRUPT
#define AV_PKT_FLAG_CORRUPT
The packet content is corrupted.
Definition: packet.h:580
ArgoCVGHeader::loop
uint32_t loop
Definition: argo_cvg.c:46
read_packet
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
Definition: avio_read_callback.c:42
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
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
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
AVProbeData::filename
const char * filename
Definition: avformat.h:452
av_match_ext
int av_match_ext(const char *filename, const char *extensions)
Return a positive value if the given filename has one of the given extensions, 0 otherwise.
Definition: format.c:41
ctx
AVFormatContext * ctx
Definition: movenc.c:49
ArgoCVGMuxContext::checksum
uint32_t checksum
Definition: argo_cvg.c:62
AVFormatContext
Format I/O context.
Definition: avformat.h:1255
internal.h
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:766
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:550
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
ArgoCVGDemuxContext::header
ArgoCVGHeader header
Definition: argo_cvg.c:51
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
ArgoCVGMuxContext
Definition: argo_cvg.c:57
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
ff_argo_cvg_demuxer
const FFInputFormat ff_argo_cvg_demuxer
FFOutputFormat
Definition: mux.h:61
ARGO_CVG_NB_BLOCKS
#define ARGO_CVG_NB_BLOCKS
Definition: argo_cvg.c:41
AVCodecParameters::ch_layout
AVChannelLayout ch_layout
Audio only.
Definition: codec_par.h:180
ff_argo_cvg_muxer
const FFOutputFormat ff_argo_cvg_muxer
AV_OPT_FLAG_ENCODING_PARAM
#define AV_OPT_FLAG_ENCODING_PARAM
A generic parameter which can be set by the user for muxing or encoding.
Definition: opt.h:280
AVCodecParameters::sample_rate
int sample_rate
Audio only.
Definition: codec_par.h:184
AVStream::nb_frames
int64_t nb_frames
number of frames in this stream if known or 0
Definition: avformat.h:804
AVIOContext
Bytestream IO Context.
Definition: avio.h:160
AVPacket::size
int size
Definition: packet.h:525
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:94
AVIOContext::seekable
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
Definition: avio.h:261
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition: channel_layout.h:303
ArgoCVGDemuxContext::checksum
uint32_t checksum
Definition: argo_cvg.c:52
AVOption::name
const char * name
Definition: opt.h:358
FFInputFormat::p
AVInputFormat p
The public AVInputFormat.
Definition: demux.h:41
ArgoCVGMuxContext::loop
int loop
Definition: argo_cvg.c:60
header
static const uint8_t header[24]
Definition: sdr2.c:68
avio_write
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:201
avio_wl32
void avio_wl32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:357
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:530
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:50
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:517
ArgoCVGHeader::reverb
uint32_t reverb
Definition: argo_cvg.c:47
AVCodecParameters::block_align
int block_align
Audio only.
Definition: codec_par.h:191
FF_OFMT_FLAG_MAX_ONE_OF_EACH
#define FF_OFMT_FLAG_MAX_ONE_OF_EACH
If this flag is set, it indicates that for each codec type whose corresponding default codec (i....
Definition: mux.h:50
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
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:91
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:231
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:71
ArgoCVGDemuxContext
Definition: argo_cvg.c:50
avformat.h
ARGO_CVG_HEADER_SIZE
#define ARGO_CVG_HEADER_SIZE
Definition: argo_cvg.c:39
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
ArgoCVGHeader::size
uint32_t size
Definition: argo_cvg.c:45
ArgoCVGMuxContext::reverb
int reverb
Definition: argo_cvg.c:61
channel_layout.h
AVIO_SEEKABLE_NORMAL
#define AVIO_SEEKABLE_NORMAL
Seeking works like for a local file.
Definition: avio.h:41
avio_read
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:612
AVPacket::stream_index
int stream_index
Definition: packet.h:526
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
read_probe
static int read_probe(const AVProbeData *p)
Definition: cdg.c:30
AVCodecParameters::bits_per_coded_sample
int bits_per_coded_sample
The number of bits per sample in the codedwords.
Definition: codec_par.h:110
MAX_FILENAME_SIZE
#define MAX_FILENAME_SIZE
Definition: webm_chunk.c:38
AV_CHANNEL_LAYOUT_MONO
#define AV_CHANNEL_LAYOUT_MONO
Definition: channel_layout.h:378
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:501
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:261
FFInputFormat
Definition: demux.h:37
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
AVCodecParameters::bit_rate
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:97
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
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:792
avstring.h
AV_CODEC_ID_ADPCM_PSX
@ AV_CODEC_ID_ADPCM_PSX
Definition: codec_id.h:404
mux.h