| 1 | /* |
| 2 | * Copyright (C) 2013 nu774 |
| 3 | * For conditions of distribution and use, see copyright notice in COPYING |
| 4 | */ |
| 5 | #if HAVE_CONFIG_H |
| 6 | # include "config.h" |
| 7 | #endif |
| 8 | #if HAVE_STDINT_H |
| 9 | # include <stdint.h> |
| 10 | #endif |
| 11 | #if HAVE_INTTYPES_H |
| 12 | # include <inttypes.h> |
| 13 | #elif defined(_MSC_VER) |
| 14 | # define SCNd64 "I64d" |
| 15 | #endif |
| 16 | #include <stdio.h> |
| 17 | #include <stdlib.h> |
| 18 | #include <string.h> |
| 19 | #include <ctype.h> |
| 20 | #include <locale.h> |
| 21 | #include <errno.h> |
| 22 | #include <sys/stat.h> |
| 23 | #include <getopt.h> |
| 24 | #if HAVE_UNISTD_H |
| 25 | #include <unistd.h> |
| 26 | #endif |
| 27 | #if HAVE_SIGACTION |
| 28 | #include <signal.h> |
| 29 | #endif |
| 30 | #ifdef _WIN32 |
| 31 | #include <io.h> |
| 32 | #define WIN32_LEAN_AND_MEAN |
| 33 | #include <windows.h> |
| 34 | #endif |
| 35 | #include "compat.h" |
| 36 | #include "wav_reader.h" |
| 37 | #include "caf_reader.h" |
| 38 | #include "aacenc.h" |
| 39 | #include "m4af.h" |
| 40 | #include "progress.h" |
| 41 | #include "version.h" |
| 42 | #include "metadata.h" |
| 43 | |
| 44 | #define PROGNAME "fdkaac" |
| 45 | |
| 46 | static volatile int g_interrupted = 0; |
| 47 | |
| 48 | #if HAVE_SIGACTION |
| 49 | static void signal_handler(int signum) |
| 50 | { |
| 51 | g_interrupted = 1; |
| 52 | } |
| 53 | static void handle_signals(void) |
| 54 | { |
| 55 | int i, sigs[] = { SIGINT, SIGHUP, SIGTERM }; |
| 56 | for (i = 0; i < sizeof(sigs)/sizeof(sigs[0]); ++i) { |
| 57 | struct sigaction sa = { 0 }; |
| 58 | sa.sa_handler = signal_handler; |
| 59 | sa.sa_flags |= SA_RESTART; |
| 60 | sigaction(sigs[i], &sa, 0); |
| 61 | } |
| 62 | } |
| 63 | #elif defined(_WIN32) |
| 64 | static BOOL WINAPI signal_handler(DWORD type) |
| 65 | { |
| 66 | g_interrupted = 1; |
| 67 | return TRUE; |
| 68 | } |
| 69 | |
| 70 | static void handle_signals(void) |
| 71 | { |
| 72 | SetConsoleCtrlHandler(signal_handler, TRUE); |
| 73 | } |
| 74 | #else |
| 75 | static void handle_signals(void) |
| 76 | { |
| 77 | } |
| 78 | #endif |
| 79 | |
| 80 | static |
| 81 | int read_callback(void *cookie, void *data, uint32_t size) |
| 82 | { |
| 83 | size_t rc = fread(data, 1, size, (FILE*)cookie); |
| 84 | return ferror((FILE*)cookie) ? -1 : (int)rc; |
| 85 | } |
| 86 | |
| 87 | static |
| 88 | int write_callback(void *cookie, const void *data, uint32_t size) |
| 89 | { |
| 90 | size_t rc = fwrite(data, 1, size, (FILE*)cookie); |
| 91 | return ferror((FILE*)cookie) ? -1 : (int)rc; |
| 92 | } |
| 93 | |
| 94 | static |
| 95 | int seek_callback(void *cookie, int64_t off, int whence) |
| 96 | { |
| 97 | return fseeko((FILE*)cookie, off, whence); |
| 98 | } |
| 99 | |
| 100 | static |
| 101 | int64_t tell_callback(void *cookie) |
| 102 | { |
| 103 | return ftello((FILE*)cookie); |
| 104 | } |
| 105 | |
| 106 | static |
| 107 | void usage(void) |
| 108 | { |
| 109 | printf( |
| 110 | PROGNAME " %s\n" |
| 111 | "Usage: " PROGNAME " [options] input_file\n" |
| 112 | "Options:\n" |
| 113 | " -h, --help Print this help message\n" |
| 114 | " -p, --profile <n> Profile (audio object type)\n" |
| 115 | " 2: MPEG-4 AAC LC (default)\n" |
| 116 | " 5: MPEG-4 HE-AAC (SBR)\n" |
| 117 | " 29: MPEG-4 HE-AAC v2 (SBR+PS)\n" |
| 118 | " 23: MPEG-4 AAC LD\n" |
| 119 | " 39: MPEG-4 AAC ELD\n" |
| 120 | " 129: MPEG-2 AAC LC\n" |
| 121 | " 132: MPEG-2 HE-AAC (SBR)\n" |
| 122 | " 156: MPEG-2 HE-AAC v2 (SBR+PS)\n" |
| 123 | " -b, --bitrate <n> Bitrate in bits per seconds (for CBR)\n" |
| 124 | " -m, --bitrate-mode <n> Bitrate configuration\n" |
| 125 | " 0: CBR (default)\n" |
| 126 | " 1-5: VBR\n" |
| 127 | " (VBR mode is not officially supported, and\n" |
| 128 | " works only on a certain combination of\n" |
| 129 | " parameter settings, sample rate, and\n" |
| 130 | " channel configuration)\n" |
| 131 | " -w, --bandwidth <n> Frequency bandwidth in Hz (AAC LC only)\n" |
| 132 | " -a, --afterburner <n> Afterburner\n" |
| 133 | " 0: Off\n" |
| 134 | " 1: On(default)\n" |
| 135 | " -L, --lowdelay-sbr <-1|0|1> Configure SBR activity on AAC ELD\n" |
| 136 | " -1: Use ELD SBR auto configurator\n" |
| 137 | " 0: Disable SBR on ELD (default)\n" |
| 138 | " 1: Enable SBR on ELD\n" |
| 139 | " -s, --sbr-ratio <0|1|2> Controls activation of downsampled SBR\n" |
| 140 | " 0: Use lib default (default)\n" |
| 141 | " 1: downsampled SBR (default for ELD+SBR)\n" |
| 142 | " 2: dual-rate SBR (default for HE-AAC)\n" |
| 143 | " -f, --transport-format <n> Transport format\n" |
| 144 | " 0: RAW (default, muxed into M4A)\n" |
| 145 | " 1: ADIF\n" |
| 146 | " 2: ADTS\n" |
| 147 | " 6: LATM MCP=1\n" |
| 148 | " 7: LATM MCP=0\n" |
| 149 | " 10: LOAS/LATM (LATM within LOAS)\n" |
| 150 | " -C, --adts-crc-check Add CRC protection on ADTS header\n" |
| 151 | " -h, --header-period <n> StreamMuxConfig/PCE repetition period in\n" |
| 152 | " transport layer\n" |
| 153 | "\n" |
| 154 | " -o <filename> Output filename\n" |
| 155 | " -G, --gapless-mode <n> Encoder delay signaling for gapless playback\n" |
| 156 | " 0: iTunSMPB (default)\n" |
| 157 | " 1: ISO standard (edts + sgpd)\n" |
| 158 | " 2: Both\n" |
| 159 | " --include-sbr-delay Count SBR decoder delay in encoder delay\n" |
| 160 | " This is not iTunes compatible, but is default\n" |
| 161 | " behavior of FDK library.\n" |
| 162 | " -I, --ignorelength Ignore length of WAV header\n" |
| 163 | " -S, --silent Don't print progress messages\n" |
| 164 | " --moov-before-mdat Place moov box before mdat box on m4a output\n" |
| 165 | "\n" |
| 166 | "Options for raw (headerless) input:\n" |
| 167 | " -R, --raw Treat input as raw (by default WAV is\n" |
| 168 | " assumed)\n" |
| 169 | " --raw-channels <n> Number of channels (default: 2)\n" |
| 170 | " --raw-rate <n> Sample rate (default: 44100)\n" |
| 171 | " --raw-format <spec> Sample format, default is \"S16L\".\n" |
| 172 | " Spec is as follows:\n" |
| 173 | " 1st char: S(igned)|U(nsigned)|F(loat)\n" |
| 174 | " 2nd part: bits per channel\n" |
| 175 | " Last char: L(ittle)|B(ig)\n" |
| 176 | " Last char can be omitted, in which case L is\n" |
| 177 | " assumed. Spec is case insensitive, therefore\n" |
| 178 | " \"u16b\" is same as \"U16B\".\n" |
| 179 | "\n" |
| 180 | "Tagging options:\n" |
| 181 | " --title <string>\n" |
| 182 | " --artist <string>\n" |
| 183 | " --album <string>\n" |
| 184 | " --genre <string>\n" |
| 185 | " --date <string>\n" |
| 186 | " --composer <string>\n" |
| 187 | " --grouping <string>\n" |
| 188 | " --comment <string>\n" |
| 189 | " --album-artist <string>\n" |
| 190 | " --track <number[/total]>\n" |
| 191 | " --disk <number[/total]>\n" |
| 192 | " --tempo <n>\n" |
| 193 | " --tag <fcc>:<value> Set iTunes predefined tag with four char code.\n" |
| 194 | " --tag-from-file <fcc>:<filename>\n" |
| 195 | " Same as above, but value is read from file.\n" |
| 196 | " --long-tag <name>:<value> Set arbitrary tag as iTunes custom metadata.\n" |
| 197 | " --tag-from-json <filename[?dot_notation]>\n" |
| 198 | " Read tags from JSON. By default, tags are\n" |
| 199 | " assumed to be direct children of the root\n" |
| 200 | " object(dictionary).\n" |
| 201 | " Optionally, position of the dictionary\n" |
| 202 | " that contains tags can be specified with\n" |
| 203 | " dotted notation.\n" |
| 204 | " Example:\n" |
| 205 | " --tag-from-json /path/to/json?format.tags\n" |
| 206 | , fdkaac_version); |
| 207 | } |
| 208 | |
| 209 | typedef struct aacenc_param_ex_t { |
| 210 | AACENC_PARAMS |
| 211 | |
| 212 | char *input_filename; |
| 213 | FILE *input_fp; |
| 214 | char *output_filename; |
| 215 | FILE *output_fp; |
| 216 | unsigned gapless_mode; |
| 217 | unsigned include_sbr_delay; |
| 218 | unsigned ignore_length; |
| 219 | int silent; |
| 220 | int moov_before_mdat; |
| 221 | |
| 222 | int is_raw; |
| 223 | unsigned raw_channels; |
| 224 | unsigned raw_rate; |
| 225 | const char *raw_format; |
| 226 | |
| 227 | aacenc_tag_store_t tags; |
| 228 | aacenc_tag_store_t source_tags; |
| 229 | aacenc_translate_generic_text_tag_ctx_t source_tag_ctx; |
| 230 | |
| 231 | char *json_filename; |
| 232 | } aacenc_param_ex_t; |
| 233 | |
| 234 | static |
| 235 | int parse_options(int argc, char **argv, aacenc_param_ex_t *params) |
| 236 | { |
| 237 | int ch; |
| 238 | int n; |
| 239 | |
| 240 | #define OPT_INCLUDE_SBR_DELAY M4AF_FOURCC('s','d','l','y') |
| 241 | #define OPT_MOOV_BEFORE_MDAT M4AF_FOURCC('m','o','o','v') |
| 242 | #define OPT_RAW_CHANNELS M4AF_FOURCC('r','c','h','n') |
| 243 | #define OPT_RAW_RATE M4AF_FOURCC('r','r','a','t') |
| 244 | #define OPT_RAW_FORMAT M4AF_FOURCC('r','f','m','t') |
| 245 | #define OPT_SHORT_TAG M4AF_FOURCC('s','t','a','g') |
| 246 | #define OPT_SHORT_TAG_FILE M4AF_FOURCC('s','t','g','f') |
| 247 | #define OPT_LONG_TAG M4AF_FOURCC('l','t','a','g') |
| 248 | #define OPT_TAG_FROM_JSON M4AF_FOURCC('t','f','j','s') |
| 249 | |
| 250 | static struct option long_options[] = { |
| 251 | { "help", no_argument, 0, 'h' }, |
| 252 | { "profile", required_argument, 0, 'p' }, |
| 253 | { "bitrate", required_argument, 0, 'b' }, |
| 254 | { "bitrate-mode", required_argument, 0, 'm' }, |
| 255 | { "bandwidth", required_argument, 0, 'w' }, |
| 256 | { "afterburner", required_argument, 0, 'a' }, |
| 257 | { "lowdelay-sbr", required_argument, 0, 'L' }, |
| 258 | { "sbr-ratio", required_argument, 0, 's' }, |
| 259 | { "transport-format", required_argument, 0, 'f' }, |
| 260 | { "adts-crc-check", no_argument, 0, 'C' }, |
| 261 | { "header-period", required_argument, 0, 'P' }, |
| 262 | |
| 263 | { "gapless-mode", required_argument, 0, 'G' }, |
| 264 | { "include-sbr-delay", no_argument, 0, OPT_INCLUDE_SBR_DELAY }, |
| 265 | { "ignorelength", no_argument, 0, 'I' }, |
| 266 | { "silent", no_argument, 0, 'S' }, |
| 267 | { "moov-before-mdat", no_argument, 0, OPT_MOOV_BEFORE_MDAT }, |
| 268 | |
| 269 | { "raw", no_argument, 0, 'R' }, |
| 270 | { "raw-channels", required_argument, 0, OPT_RAW_CHANNELS }, |
| 271 | { "raw-rate", required_argument, 0, OPT_RAW_RATE }, |
| 272 | { "raw-format", required_argument, 0, OPT_RAW_FORMAT }, |
| 273 | |
| 274 | { "title", required_argument, 0, M4AF_TAG_TITLE }, |
| 275 | { "artist", required_argument, 0, M4AF_TAG_ARTIST }, |
| 276 | { "album", required_argument, 0, M4AF_TAG_ALBUM }, |
| 277 | { "genre", required_argument, 0, M4AF_TAG_GENRE }, |
| 278 | { "date", required_argument, 0, M4AF_TAG_DATE }, |
| 279 | { "composer", required_argument, 0, M4AF_TAG_COMPOSER }, |
| 280 | { "grouping", required_argument, 0, M4AF_TAG_GROUPING }, |
| 281 | { "comment", required_argument, 0, M4AF_TAG_COMMENT }, |
| 282 | { "album-artist", required_argument, 0, M4AF_TAG_ALBUM_ARTIST }, |
| 283 | { "track", required_argument, 0, M4AF_TAG_TRACK }, |
| 284 | { "disk", required_argument, 0, M4AF_TAG_DISK }, |
| 285 | { "tempo", required_argument, 0, M4AF_TAG_TEMPO }, |
| 286 | { "tag", required_argument, 0, OPT_SHORT_TAG }, |
| 287 | { "tag-from-file", required_argument, 0, OPT_SHORT_TAG_FILE }, |
| 288 | { "long-tag", required_argument, 0, OPT_LONG_TAG }, |
| 289 | { "tag-from-json", required_argument, 0, OPT_TAG_FROM_JSON }, |
| 290 | { 0, 0, 0, 0 }, |
| 291 | }; |
| 292 | params->afterburner = 1; |
| 293 | |
| 294 | aacenc_getmainargs(&argc, &argv); |
| 295 | while ((ch = getopt_long(argc, argv, "hp:b:m:w:a:Ls:f:CP:G:Io:SR", |
| 296 | long_options, 0)) != EOF) { |
| 297 | switch (ch) { |
| 298 | case 'h': |
| 299 | return usage(), -1; |
| 300 | case 'p': |
| 301 | if (sscanf(optarg, "%u", &n) != 1) { |
| 302 | fprintf(stderr, "invalid arg for profile\n"); |
| 303 | return -1; |
| 304 | } |
| 305 | params->profile = n; |
| 306 | break; |
| 307 | case 'b': |
| 308 | if (sscanf(optarg, "%u", &n) != 1) { |
| 309 | fprintf(stderr, "invalid arg for bitrate\n"); |
| 310 | return -1; |
| 311 | } |
| 312 | params->bitrate = n; |
| 313 | break; |
| 314 | case 'm': |
| 315 | if (sscanf(optarg, "%u", &n) != 1 || n > 5) { |
| 316 | fprintf(stderr, "invalid arg for bitrate-mode\n"); |
| 317 | return -1; |
| 318 | } |
| 319 | params->bitrate_mode = n; |
| 320 | break; |
| 321 | case 'w': |
| 322 | if (sscanf(optarg, "%u", &n) != 1) { |
| 323 | fprintf(stderr, "invalid arg for bandwidth\n"); |
| 324 | return -1; |
| 325 | } |
| 326 | params->bandwidth = n; |
| 327 | break; |
| 328 | case 'a': |
| 329 | if (sscanf(optarg, "%u", &n) != 1 || n > 1) { |
| 330 | fprintf(stderr, "invalid arg for afterburner\n"); |
| 331 | return -1; |
| 332 | } |
| 333 | params->afterburner = n; |
| 334 | break; |
| 335 | case 'L': |
| 336 | if (sscanf(optarg, "%d", &n) != 1 || n < -1 || n > 1) { |
| 337 | fprintf(stderr, "invalid arg for lowdelay-sbr\n"); |
| 338 | return -1; |
| 339 | } |
| 340 | params->lowdelay_sbr = n; |
| 341 | break; |
| 342 | case 's': |
| 343 | if (sscanf(optarg, "%u", &n) != 1 || n > 2) { |
| 344 | fprintf(stderr, "invalid arg for sbr-ratio\n"); |
| 345 | return -1; |
| 346 | } |
| 347 | params->sbr_ratio = n; |
| 348 | break; |
| 349 | case 'f': |
| 350 | if (sscanf(optarg, "%u", &n) != 1) { |
| 351 | fprintf(stderr, "invalid arg for transport-format\n"); |
| 352 | return -1; |
| 353 | } |
| 354 | params->transport_format = n; |
| 355 | break; |
| 356 | case 'C': |
| 357 | params->adts_crc_check = 1; |
| 358 | break; |
| 359 | case 'P': |
| 360 | if (sscanf(optarg, "%u", &n) != 1) { |
| 361 | fprintf(stderr, "invalid arg for header-period\n"); |
| 362 | return -1; |
| 363 | } |
| 364 | params->header_period = n; |
| 365 | break; |
| 366 | case 'o': |
| 367 | params->output_filename = optarg; |
| 368 | break; |
| 369 | case 'G': |
| 370 | if (sscanf(optarg, "%u", &n) != 1 || n > 2) { |
| 371 | fprintf(stderr, "invalid arg for gapless-mode\n"); |
| 372 | return -1; |
| 373 | } |
| 374 | params->gapless_mode = n; |
| 375 | break; |
| 376 | case OPT_INCLUDE_SBR_DELAY: |
| 377 | params->include_sbr_delay = 1; |
| 378 | break; |
| 379 | case 'I': |
| 380 | params->ignore_length = 1; |
| 381 | break; |
| 382 | case 'S': |
| 383 | params->silent = 1; |
| 384 | break; |
| 385 | case OPT_MOOV_BEFORE_MDAT: |
| 386 | params->moov_before_mdat = 1; |
| 387 | break; |
| 388 | case 'R': |
| 389 | params->is_raw = 1; |
| 390 | break; |
| 391 | case OPT_RAW_CHANNELS: |
| 392 | if (sscanf(optarg, "%u", &n) != 1) { |
| 393 | fprintf(stderr, "invalid arg for raw-channels\n"); |
| 394 | return -1; |
| 395 | } |
| 396 | params->raw_channels = n; |
| 397 | break; |
| 398 | case OPT_RAW_RATE: |
| 399 | if (sscanf(optarg, "%u", &n) != 1) { |
| 400 | fprintf(stderr, "invalid arg for raw-rate\n"); |
| 401 | return -1; |
| 402 | } |
| 403 | params->raw_rate = n; |
| 404 | break; |
| 405 | case OPT_RAW_FORMAT: |
| 406 | params->raw_format = optarg; |
| 407 | break; |
| 408 | case M4AF_TAG_TITLE: |
| 409 | case M4AF_TAG_ARTIST: |
| 410 | case M4AF_TAG_ALBUM: |
| 411 | case M4AF_TAG_GENRE: |
| 412 | case M4AF_TAG_DATE: |
| 413 | case M4AF_TAG_COMPOSER: |
| 414 | case M4AF_TAG_GROUPING: |
| 415 | case M4AF_TAG_COMMENT: |
| 416 | case M4AF_TAG_ALBUM_ARTIST: |
| 417 | case M4AF_TAG_TRACK: |
| 418 | case M4AF_TAG_DISK: |
| 419 | case M4AF_TAG_TEMPO: |
| 420 | aacenc_add_tag_to_store(¶ms->tags, ch, 0, optarg, |
| 421 | strlen(optarg), 0); |
| 422 | break; |
| 423 | case OPT_SHORT_TAG: |
| 424 | case OPT_SHORT_TAG_FILE: |
| 425 | case OPT_LONG_TAG: |
| 426 | { |
| 427 | char *val; |
| 428 | size_t klen; |
| 429 | unsigned fcc = M4AF_FOURCC('-','-','-','-'); |
| 430 | |
| 431 | if ((val = strchr(optarg, ':')) == 0) { |
| 432 | fprintf(stderr, "invalid arg for tag\n"); |
| 433 | return -1; |
| 434 | } |
| 435 | *val++ = '\0'; |
| 436 | if (ch == OPT_SHORT_TAG || ch == OPT_SHORT_TAG_FILE) { |
| 437 | /* |
| 438 | * take care of U+00A9(COPYRIGHT SIGN). |
| 439 | * 1) if length of fcc is 3, we prepend '\xa9'. |
| 440 | * 2) U+00A9 becomes "\xc2\xa9" in UTF-8. Therefore |
| 441 | * we remove first '\xc2'. |
| 442 | */ |
| 443 | if (optarg[0] == '\xc2') |
| 444 | ++optarg; |
| 445 | if ((klen = strlen(optarg))== 3) |
| 446 | fcc = 0xa9; |
| 447 | else if (klen != 4) { |
| 448 | fprintf(stderr, "invalid arg for tag\n"); |
| 449 | return -1; |
| 450 | } |
| 451 | for (; *optarg; ++optarg) |
| 452 | fcc = ((fcc << 8) | (*optarg & 0xff)); |
| 453 | } |
| 454 | aacenc_add_tag_to_store(¶ms->tags, fcc, optarg, |
| 455 | val, strlen(val), |
| 456 | ch == OPT_SHORT_TAG_FILE); |
| 457 | } |
| 458 | break; |
| 459 | case OPT_TAG_FROM_JSON: |
| 460 | params->json_filename = optarg; |
| 461 | break; |
| 462 | default: |
| 463 | return usage(), -1; |
| 464 | } |
| 465 | } |
| 466 | if (argc == optind) |
| 467 | return usage(), -1; |
| 468 | |
| 469 | if (!params->bitrate && !params->bitrate_mode) { |
| 470 | fprintf(stderr, "bitrate or bitrate-mode is mandatory\n"); |
| 471 | return -1; |
| 472 | } |
| 473 | if (params->output_filename && !strcmp(params->output_filename, "-") && |
| 474 | !params->transport_format) { |
| 475 | fprintf(stderr, "stdout streaming is not available on M4A output\n"); |
| 476 | return -1; |
| 477 | } |
| 478 | if (params->bitrate && params->bitrate < 10000) |
| 479 | params->bitrate *= 1000; |
| 480 | |
| 481 | if (params->is_raw) { |
| 482 | if (!params->raw_channels) |
| 483 | params->raw_channels = 2; |
| 484 | if (!params->raw_rate) |
| 485 | params->raw_rate = 44100; |
| 486 | if (!params->raw_format) |
| 487 | params->raw_format = "S16L"; |
| 488 | } |
| 489 | params->input_filename = argv[optind]; |
| 490 | return 0; |
| 491 | }; |
| 492 | |
| 493 | static |
| 494 | int write_sample(FILE *ofp, m4af_ctx_t *m4af, aacenc_frame_t *frame) |
| 495 | { |
| 496 | if (!m4af) { |
| 497 | fwrite(frame->data, 1, frame->size, ofp); |
| 498 | if (ferror(ofp)) { |
| 499 | fprintf(stderr, "ERROR: fwrite(): %s\n", strerror(errno)); |
| 500 | return -1; |
| 501 | } |
| 502 | } else if (m4af_write_sample(m4af, 0, frame->data, frame->size, 0) < 0) { |
| 503 | fprintf(stderr, "ERROR: failed to write m4a sample\n"); |
| 504 | return -1; |
| 505 | } |
| 506 | return 0; |
| 507 | } |
| 508 | |
| 509 | static |
| 510 | int encode(aacenc_param_ex_t *params, pcm_reader_t *reader, |
| 511 | HANDLE_AACENCODER encoder, uint32_t frame_length, |
| 512 | m4af_ctx_t *m4af) |
| 513 | { |
| 514 | int16_t *ibuf = 0, *ip; |
| 515 | aacenc_frame_t obuf[2] = {{ 0 }}, *obp; |
| 516 | unsigned flip = 0; |
| 517 | int nread = 1; |
| 518 | int rc = -1; |
| 519 | int remaining, consumed; |
| 520 | int frames_written = 0, encoded = 0; |
| 521 | aacenc_progress_t progress = { 0 }; |
| 522 | const pcm_sample_description_t *fmt = pcm_get_format(reader); |
| 523 | |
| 524 | ibuf = malloc(frame_length * fmt->bytes_per_frame); |
| 525 | aacenc_progress_init(&progress, pcm_get_length(reader), fmt->sample_rate); |
| 526 | |
| 527 | for (;;) { |
| 528 | /* |
| 529 | * Since we delay the write, we cannot just exit loop when interrupted. |
| 530 | * Instead, we regard it as EOF. |
| 531 | */ |
| 532 | if (g_interrupted) |
| 533 | nread = 0; |
| 534 | if (nread > 0) { |
| 535 | if ((nread = pcm_read_frames(reader, ibuf, frame_length)) < 0) { |
| 536 | fprintf(stderr, "ERROR: read failed\n"); |
| 537 | goto END; |
| 538 | } |
| 539 | if (!params->silent) |
| 540 | aacenc_progress_update(&progress, pcm_get_position(reader), |
| 541 | fmt->sample_rate * 2); |
| 542 | } |
| 543 | ip = ibuf; |
| 544 | remaining = nread; |
| 545 | do { |
| 546 | obp = &obuf[flip]; |
| 547 | consumed = aac_encode_frame(encoder, fmt, ip, remaining, obp); |
| 548 | if (consumed < 0) goto END; |
| 549 | if (consumed == 0 && obp->size == 0) goto DONE; |
| 550 | if (obp->size == 0) break; |
| 551 | |
| 552 | remaining -= consumed; |
| 553 | ip += consumed * fmt->channels_per_frame; |
| 554 | flip ^= 1; |
| 555 | /* |
| 556 | * As we pad 1 frame at beginning and ending by our extrapolator, |
| 557 | * we want to drop them. |
| 558 | * We delay output by 1 frame by double buffering, and discard |
| 559 | * second frame and final frame from the encoder. |
| 560 | * Since sbr_header is included in the first frame (in case of |
| 561 | * SBR), we cannot discard first frame. So we pick second instead. |
| 562 | */ |
| 563 | ++encoded; |
| 564 | if (encoded == 1 || encoded == 3) |
| 565 | continue; |
| 566 | obp = &obuf[flip]; |
| 567 | if (write_sample(params->output_fp, m4af, obp) < 0) |
| 568 | goto END; |
| 569 | ++frames_written; |
| 570 | } while (remaining > 0); |
| 571 | } |
| 572 | DONE: |
| 573 | if (!params->silent) |
| 574 | aacenc_progress_finish(&progress, pcm_get_position(reader)); |
| 575 | rc = frames_written; |
| 576 | END: |
| 577 | if (ibuf) free(ibuf); |
| 578 | if (obuf[0].data) free(obuf[0].data); |
| 579 | if (obuf[1].data) free(obuf[1].data); |
| 580 | return rc; |
| 581 | } |
| 582 | |
| 583 | static |
| 584 | void put_tool_tag(m4af_ctx_t *m4af, const aacenc_param_ex_t *params, |
| 585 | HANDLE_AACENCODER encoder) |
| 586 | { |
| 587 | char tool_info[256]; |
| 588 | char *p = tool_info; |
| 589 | LIB_INFO lib_info; |
| 590 | |
| 591 | p += sprintf(p, PROGNAME " %s, ", fdkaac_version); |
| 592 | aacenc_get_lib_info(&lib_info); |
| 593 | p += sprintf(p, "libfdk-aac %s, ", lib_info.versionStr); |
| 594 | if (params->bitrate_mode) |
| 595 | sprintf(p, "VBR mode %d", params->bitrate_mode); |
| 596 | else |
| 597 | sprintf(p, "CBR %dkbps", |
| 598 | aacEncoder_GetParam(encoder, AACENC_BITRATE) / 1000); |
| 599 | |
| 600 | m4af_add_itmf_string_tag(m4af, M4AF_TAG_TOOL, tool_info); |
| 601 | } |
| 602 | |
| 603 | static |
| 604 | int finalize_m4a(m4af_ctx_t *m4af, const aacenc_param_ex_t *params, |
| 605 | HANDLE_AACENCODER encoder) |
| 606 | { |
| 607 | unsigned i; |
| 608 | aacenc_tag_entry_t *tag; |
| 609 | |
| 610 | tag = params->source_tags.tag_table; |
| 611 | for (i = 0; i < params->source_tags.tag_count; ++i, ++tag) |
| 612 | aacenc_write_tag_entry(m4af, tag); |
| 613 | |
| 614 | if (params->json_filename) |
| 615 | aacenc_write_tags_from_json(m4af, params->json_filename); |
| 616 | |
| 617 | tag = params->tags.tag_table; |
| 618 | for (i = 0; i < params->tags.tag_count; ++i, ++tag) |
| 619 | aacenc_write_tag_entry(m4af, tag); |
| 620 | |
| 621 | put_tool_tag(m4af, params, encoder); |
| 622 | |
| 623 | if (m4af_finalize(m4af, params->moov_before_mdat) < 0) { |
| 624 | fprintf(stderr, "ERROR: failed to finalize m4a\n"); |
| 625 | return -1; |
| 626 | } |
| 627 | return 0; |
| 628 | } |
| 629 | |
| 630 | static |
| 631 | char *generate_output_filename(const char *filename, const char *ext) |
| 632 | { |
| 633 | char *p = 0; |
| 634 | size_t ext_len = strlen(ext); |
| 635 | |
| 636 | if (strcmp(filename, "-") == 0) { |
| 637 | p = malloc(ext_len + 6); |
| 638 | sprintf(p, "stdin%s", ext); |
| 639 | } else { |
| 640 | const char *base = aacenc_basename(filename); |
| 641 | size_t ilen = strlen(base); |
| 642 | const char *ext_org = strrchr(base, '.'); |
| 643 | if (ext_org) ilen = ext_org - base; |
| 644 | p = malloc(ilen + ext_len + 1); |
| 645 | sprintf(p, "%.*s%s", (int)ilen, base, ext); |
| 646 | } |
| 647 | return p; |
| 648 | } |
| 649 | |
| 650 | static |
| 651 | int parse_raw_spec(const char *spec, pcm_sample_description_t *desc) |
| 652 | { |
| 653 | unsigned bits; |
| 654 | unsigned char c_type, c_endian = 'L'; |
| 655 | int type; |
| 656 | |
| 657 | if (sscanf(spec, "%c%u%c", &c_type, &bits, &c_endian) < 2) |
| 658 | return -1; |
| 659 | c_type = toupper(c_type); |
| 660 | c_endian = toupper(c_endian); |
| 661 | |
| 662 | if (c_type == 'S') |
| 663 | type = 1; |
| 664 | else if (c_type == 'U') |
| 665 | type = 2; |
| 666 | else if (c_type == 'F') |
| 667 | type = 4; |
| 668 | else |
| 669 | return -1; |
| 670 | |
| 671 | if (c_endian == 'B') |
| 672 | type |= 8; |
| 673 | else if (c_endian != 'L') |
| 674 | return -1; |
| 675 | |
| 676 | if (c_type == 'F' && bits != 32 && bits != 64) |
| 677 | return -1; |
| 678 | if (c_type != 'F' && (bits < 8 || bits > 32)) |
| 679 | return -1; |
| 680 | |
| 681 | desc->sample_type = type; |
| 682 | desc->bits_per_channel = bits; |
| 683 | return 0; |
| 684 | } |
| 685 | |
| 686 | static pcm_io_vtbl_t pcm_io_vtbl = { |
| 687 | read_callback, seek_callback, tell_callback |
| 688 | }; |
| 689 | static pcm_io_vtbl_t pcm_io_vtbl_noseek = { read_callback, 0, tell_callback }; |
| 690 | |
| 691 | static |
| 692 | pcm_reader_t *open_input(aacenc_param_ex_t *params) |
| 693 | { |
| 694 | pcm_io_context_t io = { 0 }; |
| 695 | pcm_reader_t *reader = 0; |
| 696 | struct stat stb = { 0 }; |
| 697 | |
| 698 | if ((params->input_fp = aacenc_fopen(params->input_filename, "rb")) == 0) { |
| 699 | aacenc_fprintf(stderr, "ERROR: %s: %s\n", params->input_filename, |
| 700 | strerror(errno)); |
| 701 | goto END; |
| 702 | } |
| 703 | io.cookie = params->input_fp; |
| 704 | if (fstat(fileno(params->input_fp), &stb) == 0 |
| 705 | && (stb.st_mode & S_IFMT) == S_IFREG) |
| 706 | io.vtbl = &pcm_io_vtbl; |
| 707 | else |
| 708 | io.vtbl = &pcm_io_vtbl_noseek; |
| 709 | |
| 710 | if (params->is_raw) { |
| 711 | int bytes_per_channel; |
| 712 | pcm_sample_description_t desc = { 0 }; |
| 713 | if (parse_raw_spec(params->raw_format, &desc) < 0) { |
| 714 | fprintf(stderr, "ERROR: invalid raw-format spec\n"); |
| 715 | goto END; |
| 716 | } |
| 717 | desc.sample_rate = params->raw_rate; |
| 718 | desc.channels_per_frame = params->raw_channels; |
| 719 | bytes_per_channel = (desc.bits_per_channel + 7) / 8; |
| 720 | desc.bytes_per_frame = params->raw_channels * bytes_per_channel; |
| 721 | if ((reader = raw_open(&io, &desc)) == 0) { |
| 722 | fprintf(stderr, "ERROR: failed to open raw input\n"); |
| 723 | goto END; |
| 724 | } |
| 725 | } else { |
| 726 | int c; |
| 727 | ungetc(c = getc(params->input_fp), params->input_fp); |
| 728 | |
| 729 | switch (c) { |
| 730 | case 'R': |
| 731 | if ((reader = wav_open(&io, params->ignore_length)) == 0) { |
| 732 | fprintf(stderr, "ERROR: broken / unsupported input file\n"); |
| 733 | goto END; |
| 734 | } |
| 735 | break; |
| 736 | case 'c': |
| 737 | params->source_tag_ctx.add = aacenc_add_tag_entry_to_store; |
| 738 | params->source_tag_ctx.add_ctx = ¶ms->source_tags; |
| 739 | if ((reader = caf_open(&io, |
| 740 | aacenc_translate_generic_text_tag, |
| 741 | ¶ms->source_tag_ctx)) == 0) { |
| 742 | fprintf(stderr, "ERROR: broken / unsupported input file\n"); |
| 743 | goto END; |
| 744 | } |
| 745 | break; |
| 746 | default: |
| 747 | fprintf(stderr, "ERROR: unsupported input file\n"); |
| 748 | goto END; |
| 749 | } |
| 750 | } |
| 751 | if ((reader = pcm_open_sint16_converter(reader)) != 0) |
| 752 | reader = extrapolater_open(reader); |
| 753 | return reader; |
| 754 | END: |
| 755 | return 0; |
| 756 | } |
| 757 | |
| 758 | int main(int argc, char **argv) |
| 759 | { |
| 760 | static m4af_io_callbacks_t m4af_io = { |
| 761 | read_callback, write_callback, seek_callback, tell_callback |
| 762 | }; |
| 763 | aacenc_param_ex_t params = { 0 }; |
| 764 | |
| 765 | int result = 2; |
| 766 | char *output_filename = 0; |
| 767 | pcm_reader_t *reader = 0; |
| 768 | HANDLE_AACENCODER encoder = 0; |
| 769 | AACENC_InfoStruct aacinfo = { 0 }; |
| 770 | LIB_INFO lib_info = { 0 }; |
| 771 | m4af_ctx_t *m4af = 0; |
| 772 | const pcm_sample_description_t *sample_format; |
| 773 | int downsampled_timescale = 0; |
| 774 | int frame_count = 0; |
| 775 | int sbr_mode = 0; |
| 776 | unsigned scale_shift = 0; |
| 777 | |
| 778 | setlocale(LC_CTYPE, ""); |
| 779 | setbuf(stderr, 0); |
| 780 | |
| 781 | if (parse_options(argc, argv, ¶ms) < 0) |
| 782 | return 1; |
| 783 | |
| 784 | if ((reader = open_input(¶ms)) == 0) |
| 785 | goto END; |
| 786 | |
| 787 | sample_format = pcm_get_format(reader); |
| 788 | |
| 789 | /* |
| 790 | * We use explicit/hierarchical signaling for LOAS. |
| 791 | * Other than that, we request implicit signaling to FDK library, then |
| 792 | * append explicit/backward-compatible signaling to ASC in case of MP4FF. |
| 793 | * |
| 794 | * Explicit/backward-compatible signaling of SBR is the most recommended |
| 795 | * way in MPEG4 part3 spec, and seems the only way supported by iTunes. |
| 796 | * Since FDK library does not support it, we have to do it on our side. |
| 797 | */ |
| 798 | sbr_mode = aacenc_is_sbr_active((aacenc_param_t*)¶ms); |
| 799 | if (sbr_mode && !aacenc_is_sbr_ratio_available()) { |
| 800 | fprintf(stderr, "WARNING: Only dual-rate SBR is available " |
| 801 | "for this version\n"); |
| 802 | params.sbr_ratio = 2; |
| 803 | } |
| 804 | scale_shift = aacenc_is_dual_rate_sbr((aacenc_param_t*)¶ms); |
| 805 | params.sbr_signaling = (params.transport_format == TT_MP4_LOAS) ? 2 : 0; |
| 806 | if (sbr_mode && !scale_shift) |
| 807 | params.sbr_signaling = 2; |
| 808 | |
| 809 | if (aacenc_init(&encoder, (aacenc_param_t*)¶ms, sample_format, |
| 810 | &aacinfo) < 0) |
| 811 | goto END; |
| 812 | |
| 813 | if (!params.output_filename) { |
| 814 | const char *ext = params.transport_format ? ".aac" : ".m4a"; |
| 815 | output_filename = generate_output_filename(params.input_filename, ext); |
| 816 | params.output_filename = output_filename; |
| 817 | } |
| 818 | |
| 819 | if ((params.output_fp = aacenc_fopen(params.output_filename, "wb+")) == 0) { |
| 820 | aacenc_fprintf(stderr, "ERROR: %s: %s\n", params.output_filename, |
| 821 | strerror(errno)); |
| 822 | goto END; |
| 823 | } |
| 824 | handle_signals(); |
| 825 | |
| 826 | if (!params.transport_format) { |
| 827 | uint32_t scale; |
| 828 | uint8_t mp4asc[32]; |
| 829 | uint32_t ascsize = sizeof(mp4asc); |
| 830 | unsigned framelen = aacinfo.frameLength; |
| 831 | scale = sample_format->sample_rate >> scale_shift; |
| 832 | if ((m4af = m4af_create(M4AF_CODEC_MP4A, scale, &m4af_io, |
| 833 | params.output_fp)) < 0) |
| 834 | goto END; |
| 835 | aacenc_mp4asc((aacenc_param_t*)¶ms, aacinfo.confBuf, |
| 836 | aacinfo.confSize, mp4asc, &ascsize); |
| 837 | m4af_set_decoder_specific_info(m4af, 0, mp4asc, ascsize); |
| 838 | m4af_set_fixed_frame_duration(m4af, 0, |
| 839 | framelen >> scale_shift); |
| 840 | m4af_set_vbr_mode(m4af, 0, params.bitrate_mode); |
| 841 | m4af_set_priming_mode(m4af, params.gapless_mode + 1); |
| 842 | m4af_begin_write(m4af); |
| 843 | } |
| 844 | if (scale_shift && (aacinfo.encoderDelay & 1)) { |
| 845 | /* |
| 846 | * Since odd delay cannot be exactly expressed in downsampled scale, |
| 847 | * we push one zero frame to the encoder here, to make delay even |
| 848 | */ |
| 849 | int16_t zero[8] = { 0 }; |
| 850 | aacenc_frame_t frame = { 0 }; |
| 851 | aac_encode_frame(encoder, sample_format, zero, 1, &frame); |
| 852 | free(frame.data); |
| 853 | } |
| 854 | frame_count = encode(¶ms, reader, encoder, aacinfo.frameLength, m4af); |
| 855 | if (frame_count < 0) |
| 856 | goto END; |
| 857 | if (m4af) { |
| 858 | uint32_t delay = aacinfo.encoderDelay; |
| 859 | uint32_t padding; |
| 860 | int64_t frames_read = pcm_get_position(reader); |
| 861 | |
| 862 | if (sbr_mode && params.profile != AOT_ER_AAC_ELD && |
| 863 | !params.include_sbr_delay) |
| 864 | delay -= 481 << scale_shift; |
| 865 | if (scale_shift && (delay & 1)) |
| 866 | ++delay; |
| 867 | padding = frame_count * aacinfo.frameLength - frames_read - delay; |
| 868 | m4af_set_priming(m4af, 0, delay >> scale_shift, padding >> scale_shift); |
| 869 | if (finalize_m4a(m4af, ¶ms, encoder) < 0) |
| 870 | goto END; |
| 871 | } |
| 872 | result = 0; |
| 873 | END: |
| 874 | if (reader) pcm_teardown(&reader); |
| 875 | if (params.input_fp) fclose(params.input_fp); |
| 876 | if (m4af) m4af_teardown(&m4af); |
| 877 | if (params.output_fp) fclose(params.output_fp); |
| 878 | if (encoder) aacEncClose(&encoder); |
| 879 | if (output_filename) free(output_filename); |
| 880 | if (params.tags.tag_table) |
| 881 | aacenc_free_tag_store(¶ms.tags); |
| 882 | if (params.source_tags.tag_table) |
| 883 | aacenc_free_tag_store(¶ms.source_tags); |
| 884 | |
| 885 | return result; |
| 886 | } |