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351 lines
10 KiB
351 lines
10 KiB
4 years ago
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/*
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* tcdemux.c
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*
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* Copyright (C) Thomas Oestreich - June 2001
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*
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* This file is part of transcode, a video stream processing tool
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*
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* transcode is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* transcode is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "transcode.h"
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#include "tcinfo.h"
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#include "libtc/xio.h"
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#include "ioaux.h"
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#include "tc.h"
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#include "demuxer.h"
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#define EXE "tcdemux"
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#define MAX_BUF 1024
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int verbose = TC_QUIET;
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/* ------------------------------------------------------------
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*
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* auxiliary routines
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*
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* ------------------------------------------------------------*/
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void import_exit(int code)
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{
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if (verbose & TC_DEBUG)
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tc_log_msg(EXE, "(pid=%d) exit (code %d)", (int) getpid(), code);
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exit(code);
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}
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/* ------------------------------------------------------------
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*
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* print a usage/version message
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*
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* ------------------------------------------------------------*/
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void version(void)
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{
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/* print id string to stderr */
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fprintf(stderr, "%s (%s v%s) (C) 2001-2003 Thomas Oestreich,"
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" 2003-2010 Transcode Team\n",
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EXE, PACKAGE, VERSION);
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}
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static void usage(int status)
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{
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version();
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fprintf(stderr,"\nUsage: %s [options]\n", EXE);
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fprintf(stderr," -i name input file name [stdin]\n");
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fprintf(stderr," -t magic input file type [autodetect]\n");
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fprintf(stderr," -x codec process only packs with codec payload [all]\n");
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fprintf(stderr," -S unit[,s1-s2] presentation unit[,s1-s2] sequences [0,all]\n");
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fprintf(stderr," -a ach[,vch] extract audio[,video] track [0,0]\n");
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fprintf(stderr," -s 0xnn sync with private substream id 0xnn [off]\n");
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fprintf(stderr," -M mode demuxer PES A-V sync mode (0=off|1=PTS only|2=full) [1]\n");
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fprintf(stderr," -O do not skip initial sequence\n");
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fprintf(stderr," -P name write synchronization data to file\n");
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fprintf(stderr," -W write navigation data to stdout\n");
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fprintf(stderr," -f fps frame rate [%.3f]\n", PAL_FPS);
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fprintf(stderr," -d mode verbosity mode\n");
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fprintf(stderr," -A n[,m[...]] pass-through packet payload id\n");
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fprintf(stderr," -H sync hard to supplied fps (no smooth drop)\n");
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fprintf(stderr," -v print version\n");
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exit(status);
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}
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/* ------------------------------------------------------------
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*
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* demuxer thread frontend
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*
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* ------------------------------------------------------------*/
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int main(int argc, char *argv[])
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{
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info_t ipipe;
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int ch, n, user = 0, demux_mode = TC_DEMUX_SEQ_ADJUST;
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int npass = 0, *pass = NULL, *new_pass = NULL;
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int keep_initial_seq = 0, hard_fps_flag = 0, pack_sl = PACKAGE_ALL;
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int unit_seek = 0, resync_seq1 = 0, resync_seq2 = INT_MAX;
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int a_track = 0, v_track = 0, subid = 0x80;
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double fps = PAL_FPS;
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long stream_stype = TC_STYPE_UNKNOWN;
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long stream_codec = TC_CODEC_UNKNOWN;
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long stream_magic = TC_MAGIC_UNKNOWN;
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long x;
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char *magic = "", *codec = NULL, *name = NULL;
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char *logfile = SYNC_LOGFILE, *str = NULL, *end = NULL;
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//defaults:
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//proper initialization
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memset(&ipipe, 0, sizeof(info_t));
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libtc_init(&argc, &argv);
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while ((ch = getopt(argc, argv, "A:a:d:x:i:vt:S:M:f:P:WHs:O?h")) != -1) {
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switch (ch) {
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case 'i':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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name = optarg;
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break;
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case 'O':
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keep_initial_seq = 1;
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break;
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case 'P':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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logfile = optarg;
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break;
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case 'S':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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n = sscanf(optarg,"%d,%d-%d",
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&unit_seek, &resync_seq1, &resync_seq2);
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if (n < 0) {
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tc_log_error(EXE, "invalid parameter for option -S");
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usage(EXIT_FAILURE);
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}
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if (unit_seek < 0) {
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tc_log_error(EXE, "invalid unit parameter for option -S");
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usage(EXIT_FAILURE);
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}
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if (resync_seq1 < 0 || resync_seq2 < 0
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|| resync_seq1 >= resync_seq2) {
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tc_log_error(EXE, "invalid sequence parameter for option -S");
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usage(EXIT_FAILURE);
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}
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break;
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case 'd':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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verbose = atoi(optarg);
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break;
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case 'f':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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fps = atof(optarg);
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break;
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case 'W':
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demux_mode = TC_DEMUX_SEQ_LIST;
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logfile = NULL;
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break;
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case 'H':
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hard_fps_flag = 1;
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break;
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case 'x':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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codec = optarg;
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if (strcmp(codec,"ac3") == 0) {
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pack_sl = PACKAGE_AUDIO_AC3;
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stream_codec = TC_CODEC_AC3;
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}
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if (strcmp(codec,"mpeg2") == 0) {
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pack_sl = PACKAGE_VIDEO;
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stream_codec = TC_CODEC_MPEG2;
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}
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if (strcmp(codec,"mp3") == 0) {
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pack_sl = PACKAGE_AUDIO_MP3;
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stream_codec = TC_CODEC_MP3;
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}
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if (strcmp(codec,"pcm") == 0) {
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pack_sl = PACKAGE_AUDIO_PCM;
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stream_codec = TC_CODEC_PCM;
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}
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if (strcmp(codec,"ps1") == 0) {
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pack_sl = PACKAGE_SUBTITLE;
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stream_codec = TC_CODEC_SUB;
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}
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break;
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case 't':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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magic = optarg;
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user = 1;
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break;
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case 's':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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subid = strtol(optarg, NULL, 16);
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break;
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case 'A':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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str = optarg;
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while (1) {
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x = strtol(str, &end, 0);
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if ((end == str) || (x < 1) || (x > 0xff)) {
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tc_log_error(EXE, "invalid parameter for option -A");
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exit(1);
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}
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if (*end == '\0') {
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break;
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}
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if (*end != ',') {
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tc_log_error(EXE, "invalid parameter for option -A");
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exit(1);
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}
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str = end + 1;
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new_pass = tc_realloc(pass, (npass + 1) * sizeof (int));
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if (new_pass == NULL) {
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tc_log_error(EXE, "out of memory");
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exit(1);
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}
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pass = new_pass;
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pass[npass] = (int)x;
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npass++;
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}
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break;
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case 'M':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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demux_mode = atoi(optarg);
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if (demux_mode == TC_DEMUX_OFF)
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verbose = TC_QUIET;
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if (demux_mode < 0 || demux_mode > TC_DEMUX_MAX_OPTS) {
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tc_log_error(EXE, "invalid parameter for option -M");
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exit(1);
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}
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break;
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case 'a':
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if (optarg[0] == '-') usage(EXIT_FAILURE);
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if ((n = sscanf(optarg,"%d,%d", &a_track, &v_track)) <= 0) {
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tc_log_error(EXE, "invalid parameter for option -a");
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exit(1);
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}
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break;
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case 'v':
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version();
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exit(0);
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break;
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case 'h':
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usage(EXIT_SUCCESS);
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default:
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usage(EXIT_FAILURE);
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}
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}
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ac_init(AC_ALL);
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/* ------------------------------------------------------------
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* fill out defaults for info structure
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* ------------------------------------------------------------*/
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// assume defaults
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if (name == NULL)
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stream_stype=TC_STYPE_STDIN;
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// no autodetection yet
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if (argc == 1) {
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usage(EXIT_FAILURE);
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}
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// do not try to mess with the stream
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if (stream_stype == TC_STYPE_STDIN) {
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ipipe.fd_in = STDIN_FILENO;
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} else {
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if (tc_file_check(name))
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exit(1);
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ipipe.fd_in = xio_open(name, O_RDONLY);
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if (ipipe.fd_in < 0) {
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tc_log_perror(EXE, "open file");
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exit(1);
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}
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// try to find out the filetype
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stream_magic = fileinfo(ipipe.fd_in, 0);
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if (verbose)
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tc_log_msg(EXE, "(pid=%d) %s", getpid(), filetype(stream_magic));
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}
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// fill out defaults for info structure
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ipipe.fd_out = STDOUT_FILENO;
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ipipe.magic = stream_magic;
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ipipe.stype = stream_stype;
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ipipe.codec = stream_codec;
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ipipe.verbose = verbose;
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ipipe.ps_unit = unit_seek;
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ipipe.ps_seq1 = resync_seq1;
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ipipe.ps_seq2 = resync_seq2;
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ipipe.demux = demux_mode;
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ipipe.select = pack_sl;
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ipipe.keep_seq = keep_initial_seq;
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ipipe.subid = subid;
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ipipe.fps = fps;
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ipipe.hard_fps_flag = hard_fps_flag;
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ipipe.track = a_track;
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ipipe.name = logfile;
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//FIXME: video defaults to 0
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/* ------------------------------------------------------------
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* main processing mode
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* ------------------------------------------------------------*/
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if (npass > 0)
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tcdemux_pass_through(&ipipe, pass, npass);
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else
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tcdemux_thread(&ipipe);
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return 0;
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}
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#include "libtc/static_xio.h"
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