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356 lines
9.6 KiB
356 lines
9.6 KiB
4 years ago
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/*
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* tcdecode.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 <limits.h>
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#include "ioaux.h"
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#include "tc.h"
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#include "libtc/xio.h"
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#define EXE "tcdecode"
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extern long fileinfo(int fd, int skip);
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int verbose = TC_QUIET;
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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 file input file [stdin]\n");
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fprintf(stderr," -x codec source codec (required)\n");
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fprintf(stderr," -t package codec package\n");
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fprintf(stderr," -g wxh stream frame size [autodetect]\n");
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fprintf(stderr," -y format output raw stream format [rgb]\n");
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fprintf(stderr," -Q mode decoding quality (0=fastest-5=best) [%d]\n", VQUALITY);
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fprintf(stderr," -d mode verbosity mode\n");
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fprintf(stderr," -s c,f,r audio gain for ac3 downmixing [1,1,1]\n");
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fprintf(stderr," -A n A52 decoder flag [0]\n");
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fprintf(stderr," -C s,e decode only from start to end ((V) frames/(A) bytes) [all]\n");
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fprintf(stderr," -Y use libdv YUY2 decoder mode\n");
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fprintf(stderr," -z r convert zero padding to silence\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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* universal decode 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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decode_t decode;
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int ch, done=0;
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char *codec=NULL, *format="rgb", *magic="none";
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memset(&decode, 0, sizeof(decode));
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decode.magic = TC_MAGIC_UNKNOWN;
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decode.stype = TC_STYPE_UNKNOWN;
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decode.quality = VQUALITY;
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decode.ac3_gain[0] = decode.ac3_gain[1] = decode.ac3_gain[2] = 1.0;
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decode.frame_limit[0]=0;
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decode.frame_limit[1]=LONG_MAX;
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libtc_init(&argc, &argv);
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while ((ch = getopt(argc, argv, "Q:t:d:x:i:a:g:vy:s:YC:A:z:?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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decode.name = optarg;
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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 'Q':
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if (optarg[0]=='-') usage(EXIT_FAILURE);
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decode.quality = atoi(optarg);
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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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decode.a52_mode = atoi(optarg);
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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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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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break;
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case 'y':
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if (optarg[0]=='-') usage(EXIT_FAILURE);
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format = optarg;
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break;
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case 'g':
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if (optarg[0]=='-') usage(EXIT_FAILURE);
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if (2 != sscanf(optarg,"%dx%d", &decode.width, &decode.height)) usage(EXIT_FAILURE);
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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 'Y':
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decode.dv_yuy2_mode=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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if (3 != sscanf(optarg,"%lf,%lf,%lf", &decode.ac3_gain[0], &decode.ac3_gain[1], &decode.ac3_gain[2])) usage(EXIT_FAILURE);
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break;
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case 'C':
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if(optarg[0]=='-') usage(EXIT_FAILURE);
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if (2 != sscanf(optarg,"%ld,%ld", &decode.frame_limit[0], &decode.frame_limit[1])) usage(EXIT_FAILURE);
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if (decode.frame_limit[0] >= decode.frame_limit[1])
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{
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tc_log_error(EXE, "Invalid -C options");
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usage(EXIT_FAILURE);
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}
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break;
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case 'z':
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if(optarg[0]=='-') usage(EXIT_FAILURE);
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decode.padrate = atoi(optarg);
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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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*
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* fill out defaults for info structure
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*
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* ------------------------------------------------------------*/
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// assume defaults
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if(decode.name==NULL) decode.stype=TC_STYPE_STDIN;
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// no autodetection yet
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if(codec==NULL) {
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tc_log_error(EXE, "codec must be specified");
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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 (decode.stype != TC_STYPE_STDIN) {
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if (tc_file_check(decode.name)) exit(1);
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if ((decode.fd_in = xio_open(decode.name, O_RDONLY)) < 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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decode.magic = fileinfo(decode.fd_in, 0);
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if (verbose)
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tc_log_msg(EXE, "(pid=%d) %s", getpid(), filetype(decode.magic));
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} else decode.fd_in = STDIN_FILENO;
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decode.fd_out = STDOUT_FILENO;
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decode.codec = TC_CODEC_UNKNOWN;
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decode.verbose = verbose;
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if (decode.width < 0) decode.width = 0;
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if (decode.height < 0) decode.height = 0;
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/* ------------------------------------------------------------
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*
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* output raw stream format
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*
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* ------------------------------------------------------------*/
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if (!strcmp(format, "rgb")) decode.format = TC_CODEC_RGB;
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else if (!strcmp(format, "yuv420p")) decode.format = TC_CODEC_YUV420P;
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else if (!strcmp(format, "yuv2")) decode.format = TC_CODEC_YUV2;
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else if (!strcmp(format, "yuy2")) decode.format = TC_CODEC_YUY2;
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else if (!strcmp(format, "pcm")) decode.format = TC_CODEC_PCM;
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else if (!strcmp(format, "raw")) decode.format = TC_CODEC_RAW;
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/* ------------------------------------------------------------
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*
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* codec specific section
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*
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* note: user provided values overwrite autodetection!
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*
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* ------------------------------------------------------------*/
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// FFMPEG can decode a lot
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if(!strcmp(magic, "ffmpeg") || !strcmp(magic, "lavc")) {
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if (!strcmp(codec, "mpeg2")) decode.codec = TC_CODEC_MPEG2;
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else if (!strcmp(codec, "mpeg2video")) decode.codec = TC_CODEC_MPEG2;
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else if (!strcmp(codec, "mpeg1video")) decode.codec = TC_CODEC_MPEG1;
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else if (!strcmp(codec, "divx3")) decode.codec = TC_CODEC_DIVX3;
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else if (!strcmp(codec, "divx")) decode.codec = TC_CODEC_DIVX4;
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else if (!strcmp(codec, "divx4")) decode.codec = TC_CODEC_DIVX4;
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else if (!strcmp(codec, "mp42")) decode.codec = TC_CODEC_MP42;
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else if (!strcmp(codec, "mjpg")) decode.codec = TC_CODEC_MJPEG;
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else if (!strcmp(codec, "mjpeg")) decode.codec = TC_CODEC_MJPEG;
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else if (!strcmp(codec, "rv10")) decode.codec = TC_CODEC_RV10;
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else if (!strcmp(codec, "svq1")) decode.codec = TC_CODEC_SVQ1;
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else if (!strcmp(codec, "svq3")) decode.codec = TC_CODEC_SVQ3;
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else if (!strcmp(codec, "vp3")) decode.codec = TC_CODEC_VP3;
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else if (!strcmp(codec, "4xm")) decode.codec = TC_CODEC_4XM;
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else if (!strcmp(codec, "wmv1")) decode.codec = TC_CODEC_WMV1;
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else if (!strcmp(codec, "wmv2")) decode.codec = TC_CODEC_WMV2;
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else if (!strcmp(codec, "hfyu")) decode.codec = TC_CODEC_HUFFYUV;
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else if (!strcmp(codec, "indeo3")) decode.codec = TC_CODEC_INDEO3;
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else if (!strcmp(codec, "h263p")) decode.codec = TC_CODEC_H263P;
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else if (!strcmp(codec, "h263i")) decode.codec = TC_CODEC_H263I;
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else if (!strcmp(codec, "dvvideo")) decode.codec = TC_CODEC_DV;
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else if (!strcmp(codec, "dv")) decode.codec = TC_CODEC_DV;
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else if (!strcmp(codec, "vag")) decode.codec = TC_CODEC_VAG;
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decode_lavc(&decode);
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}
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// MPEG2
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if (!strcmp(codec, "mpeg2")) {
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decode.codec = TC_CODEC_MPEG2;
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decode_mpeg2(&decode);
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done = 1;
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}
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// OGG
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if (!strcmp(codec, "ogg")) {
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decode.codec = TC_CODEC_VORBIS;
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decode_ogg(&decode);
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done = 1;
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}
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// AC3
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if (!strcmp(codec, "ac3")) {
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decode.codec = TC_CODEC_AC3;
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decode_a52(&decode);
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done = 1;
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}
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// MP3
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if (!strcmp(codec, "mp3")) {
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decode.codec = TC_CODEC_MP3;
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decode_mp3(&decode);
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done = 1;
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}
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// MP2
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if (!strcmp(codec, "mp2")) {
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decode.codec = TC_CODEC_MP3;
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decode_mp2(&decode);
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done = 1;
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}
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// DV
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if (!strcmp(codec, "dv")) {
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decode.codec = TC_CODEC_DV;
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decode_dv(&decode);
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done = 1;
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}
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// YUV420P
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if (!strcmp(codec, "yuv420p")) {
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decode.codec = TC_CODEC_YUV420P;
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decode_yuv(&decode);
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done = 1;
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}
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#if 0
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// DivX Video
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if (!strcmp(codec, "divx")) {
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decode.select = TC_VIDEO;
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decode_divx(&decode);
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done = 1;
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}
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#endif
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// MOV
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if (!strcmp(codec, "mov")) {
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decode_mov(&decode);
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done = 1;
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}
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// LZO
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if (!strcmp(codec, "lzo")) {
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decode_lzo(&decode);
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done = 1;
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}
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if(!done) {
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tc_log_error(EXE, "(pid=%d) unable to handle codec %s", getpid(), codec);
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exit(1);
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}
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if (decode.fd_in != STDIN_FILENO) xio_close(decode.fd_in);
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return 0;
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}
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#include "libtc/static_xio.h"
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