/* Copyright (C) 2003 Commonwealth Scientific and Industrial Research Organisation (CSIRO) Australia Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of CSIRO Australia nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ORGANISATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include #include #include #ifndef WIN32 #include #endif #include #include #ifdef HAVE_INTTYPES_H # include #else # define PRId64 "I64d" #endif #include "oggz/oggz.h" #include "oggz_tools.h" /* #define DEBUG */ #ifdef WIN32 #define strcasecmp _stricmp #endif typedef struct { OggzReadPacket read_packet; int clipcount; int pktssincekey; int granuleshift; int keyframes; int cmml; int html; } OSData; static char * progname; static FILE * outfile = NULL; #define HTML_HEAD "\n\nOGGZ_SCAN OUTPUT\n\n\n\n

OGGZ_SCAN OUTPUT for %s

\n\n" #define HTML_END "

\n\n" #define HTML_CLIP "

Clip No %i\tat t=%lf.

\n\n" #define CMML_HEAD "\n\n\n\n\n\nOGGZ_SCAN OUTPUT for %s\n\n\n" #define CMML_END "" #define CMML_CLIP "\nEnter description.\n\n\n" static void usage (char * progname) { printf ("Usage: %s [options] filename\n", progname); printf ("Scan an Ogg file and output characteristic landmarks.\n"); printf ("\nOutput options\n"); printf (" -o filename, --output filename\n"); printf (" Specify output filename\n"); printf (" -f format, --format format\n"); printf (" Specify output format. Supported formats are plain,\n"); printf (" cmml, and html. (Default: plain)\n"); printf ("\nFeature options\n"); printf (" -k, --keyframe Display timestamps of unforced theora keyframes\n"); printf ("\nMiscellaneous options\n"); printf (" -h, --help Display this help and exit\n"); printf (" -v, --version Output version information and exit\n"); printf ("\n"); printf ("Please report bugs to \n"); } static int filter_page (OGGZ * oggz, const ogg_page * og, long serialno, void * user_data) { OSData * osdata = (OSData *) user_data; const char * ident; /* set scanning callback for keyframe calculation on theora pages only */ if (osdata->keyframes && ogg_page_bos ((ogg_page *)og)) { ident = ot_page_identify (oggz, og, NULL); if (ident && (strcasecmp ("theora", ident) == 0)) { oggz_set_read_callback (oggz, serialno, osdata->read_packet, osdata); } } return OGGZ_CONTINUE; } static int read_packet (OGGZ * oggz, oggz_packet * zp, long serialno, void * user_data) { OSData * osdata = (OSData *) user_data; ogg_packet * op = &zp->op; double time_offset; /* calculate granuleshift for theora track */ if (osdata->granuleshift == 0) { osdata->granuleshift = 1 << oggz_get_granuleshift (oggz, serialno); osdata->granuleshift--; #ifdef DEBUG fprintf(outfile, "Granuleshift = %d\n", osdata->granuleshift); #endif } /* don't do anything on bos page */ if (op->b_o_s) { return OGGZ_CONTINUE; } /* calculate the keyframes if requested */ if (osdata->keyframes) { /* increase number of packets seen since the last intra frame */ osdata->pktssincekey++; /* does the current packet contain a keyframe? */ if(!(op->packet[0] & 0x80) /* data packet */ && !(op->packet[0] & 0x40) /* intra frame */ ) { ogg_int64_t units; #ifdef DEBUG fprintf(outfile, "Keyframe found: packetno=%" PRId64 "\t pktssincekey=%d\n", op->packetno, osdata->pktssincekey); #endif /* if the keyframe is on the granuleshift position, ignore it */ if (osdata->pktssincekey >= osdata->granuleshift) { osdata->pktssincekey=0; return OGGZ_CONTINUE; } osdata->pktssincekey=0; /* new shot boundary found: calculate time */ units = oggz_tell_units (oggz); if (units == -1) { time_offset = oggz_tell(oggz); } else { time_offset = (double)units / 1000.0; } /* output in requested format */ if (osdata->html) { fprintf(outfile, HTML_CLIP, osdata->clipcount, time_offset); } if (osdata->cmml) { fprintf(outfile, CMML_CLIP, osdata->clipcount, time_offset); } osdata->clipcount++; if (!osdata->html && !osdata->cmml) { ot_fprint_time (outfile, time_offset); fputc ('\n', outfile); } } } #ifdef DEBUG fprintf (outfile, "%ld bytes pktno=%" PRId64 "\n", op->bytes, op->packetno); #endif return OGGZ_CONTINUE; } int main (int argc, char ** argv) { int show_version = 0; int show_help = 0; int output_cmml = 0; int output_html = 0; int scan_keyframes = 0; OSData * osdata = NULL; OGGZ * oggz; char * infilename = NULL, * outfilename = NULL; int i; char * optstring = "f:khvo:"; #ifdef HAVE_GETOPT_LONG static struct option long_options[] = { {"output", required_argument, 0, 'o'}, {"format", required_argument, 0, 'f'}, {"keyframe", no_argument, 0, 'k'}, {"help", no_argument, 0, 'h'}, {"version", no_argument, 0, 'v'}, {0,0,0,0} }; #endif progname = argv[0]; if (argc < 2) { usage (progname); return (1); } if (!strncmp (argv[1], "-?", 2)) { #ifdef HAVE_GETOPT_LONG ot_print_options (long_options, optstring); #else ot_print_short_options (optstring); #endif exit (0); } while (1) { #ifdef HAVE_GETOPT_LONG i = getopt_long(argc, argv, optstring, long_options, NULL); #else i = getopt (argc, argv, optstring); #endif if (i == -1) break; if (i == ':') { usage (progname); goto exit_err; } switch (i) { case 'f': /* format */ if (!strcmp (optarg, "cmml")) { output_cmml = 1; output_html = 0; } else if (!strcmp (optarg, "html")) { output_cmml = 0; output_html = 1; } else { output_cmml = 0; output_html = 0; } break; case 'w': /* html */ output_html = 1; break; case 'k': /* keyframe */ scan_keyframes = 1; break; case 'h': /* help */ show_help = 1; break; case 'v': /* version */ show_version = 1; break; case 'o': /* output */ outfilename = optarg; break; default: break; } } if (show_version) { printf ("%s version " VERSION "\n", progname); } if (show_help) { usage (progname); } if (show_version || show_help) { goto exit_ok; } if (optind >= argc) { usage (progname); goto exit_err; } infilename = argv[optind++]; if (outfilename == NULL) { outfile = stdout; } else { outfile = fopen (outfilename, "wb"); if (outfile == NULL) { fprintf (stderr, "%s: unable to open output file %s\n", progname, outfilename); goto exit_err; } } errno = 0; if (strcmp (infilename, "-") == 0) { oggz = oggz_open_stdio (stdin, OGGZ_READ|OGGZ_AUTO); } else { oggz = oggz_open (infilename, OGGZ_READ|OGGZ_AUTO); } if (oggz == NULL) { if (errno == 0) { fprintf (stderr, "%s: %s: error opening input file\n", progname, infilename); } else { fprintf (stderr, "%s: %s: %s\n", progname, infilename, strerror (errno)); } goto exit_err; } /* init osdata */ osdata = malloc (sizeof (OSData)); if (osdata == NULL) { fprintf (stderr, "%s: Out of memory\n", progname); exit (1); } memset (osdata, 0, sizeof (OSData)); osdata->read_packet = read_packet; if (scan_keyframes) osdata->keyframes = 1; if (output_cmml) osdata->cmml = 1; if (output_html) osdata->html = 1; /* set up the right filters on the tracks */ oggz_set_read_page (oggz, -1, filter_page, osdata); /* correct output format */ if (output_html) { fprintf(outfile, HTML_HEAD, infilename); } if (output_cmml) { fprintf(outfile, CMML_HEAD, infilename, infilename); } oggz_run_set_blocksize (oggz, 1024*1024); oggz_run (oggz); /* finish output */ if (output_html) { fprintf(outfile, HTML_END); } if (output_cmml) { fprintf(outfile, CMML_END); } oggz_close (oggz); exit_ok: free(osdata); exit(0); exit_err: free(osdata); exit(1); }