/* * Copyright (c) 2013 Nicolas George * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with FFmpeg; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #if HAVE_UNISTD_H #include <unistd.h> /* getopt */ #endif #include "libavformat/avformat.h" #include "libavutil/timestamp.h" #if !HAVE_GETOPT #include "compat/getopt.c" #endif static void usage(int ret) { fprintf(ret ? stderr : stdout, "Usage: seek_print file [command ...]\n" "Commands:\n" " read\n" " seek:stream:min_ts:ts:max_ts:flags\n" ); exit(ret); } int main(int argc, char **argv) { int opt, ret, stream, flags; const char *filename; AVFormatContext *avf = NULL; int64_t min_ts, max_ts, ts; AVPacket packet; while ((opt = getopt(argc, argv, "h")) != -1) { switch (opt) { case 'h': usage(0); default: usage(1); } } argc -= optind; argv += optind; if (!argc) usage(1); filename = *argv; argv++; argc--; av_register_all(); if ((ret = avformat_open_input(&avf, filename, NULL, NULL)) < 0) { fprintf(stderr, "%s: %s\n", filename, av_err2str(ret)); return 1; } if ((ret = avformat_find_stream_info(avf, NULL)) < 0) { fprintf(stderr, "%s: could not find codec parameters: %s\n", filename, av_err2str(ret)); return 1; } for (; argc; argc--, argv++) { if (!strcmp(*argv, "read")) { ret = av_read_frame(avf, &packet); if (ret < 0) { printf("read: %d (%s)\n", ret, av_err2str(ret)); } else { AVRational *tb = &avf->streams[packet.stream_index]->time_base; printf("read: %d size=%d stream=%d dts=%s (%s) pts=%s (%s)\n", ret, packet.size, packet.stream_index, av_ts2str(packet.dts), av_ts2timestr(packet.dts, tb), av_ts2str(packet.pts), av_ts2timestr(packet.pts, tb)); av_free_packet(&packet); } } else if (sscanf(*argv, "seek:%i:%"SCNi64":%"SCNi64":%"SCNi64":%i", &stream, &min_ts, &ts, &max_ts, &flags) == 5) { ret = avformat_seek_file(avf, stream, min_ts, ts, max_ts, flags); printf("seek: %d (%s)\n", ret, av_err2str(ret)); } else { fprintf(stderr, "'%s': unknown command\n", *argv); return 1; } } avformat_close_input(&avf); return 0; }