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@rbouqueau @jeanlf
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/*
* GPAC - Multimedia Framework C SDK
*
* Authors: Romain Bouqueau - Cyril Concolato
* Copyright (c) Romain Bouqueau 2013-
* Copyright (c) Telecom ParisTech 2013-
* All rights reserved
*
* This file is part of GPAC / sample MP4 demultiplexing application
*
* GPAC 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, or (at your option)
* any later version.
*
* GPAC 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 this library; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <gpac/tools.h>
#include <gpac/isomedia.h>
static void process_samples_from_track(GF_ISOFile *movie, u32 track_id, u32 *sample_index)
{
u32 track_number;
u32 sample_count;
/* Error indicator */
GF_Err e;
/* Number of bytes required to finish the current ISO Box reading */
u64 missing_bytes;
track_number = gf_isom_get_track_by_id(movie, track_id);
if (track_number == 0) {
fprintf(stdout, "Could not find track ID=%u. Ignore segment.\n", track_id);
return;
}
sample_count = gf_isom_get_sample_count(movie, track_number);
while (*sample_index <= sample_count) {
GF_ISOSample *iso_sample;
u32 sample_description_index;
iso_sample = gf_isom_get_sample(movie, track_number, *sample_index, &sample_description_index);
if (iso_sample) {
fprintf(stdout, "Found sample #%5d/%5d of length %8d, RAP: %d, DTS: "LLD", CTS: "LLD"\n", *sample_index, sample_count, iso_sample->dataLength, iso_sample->IsRAP, iso_sample->DTS, iso_sample->DTS+iso_sample->CTS_Offset);
(*sample_index)++;
/* Release the sample data, once you're done with it*/
gf_isom_sample_del(&iso_sample);
} else {
e = gf_isom_last_error(movie);
if (e == GF_ISOM_INCOMPLETE_FILE) {
missing_bytes = gf_isom_get_missing_bytes(movie, track_number);
fprintf(stdout, "Missing "LLU" bytes on input file\n", missing_bytes);
gf_sleep(1000);
}
}
}
}
int main(int argc, char **argv)
{
/* The ISO progressive reader */
GF_ISOFile *movie;
/* Error indicator */
GF_Err e;
/* Number of bytes required to finish the current ISO Box reading */
u64 missing_bytes;
/* Return value for the program */
int ret = 0;
/* Maximum index of the segments*/
u32 seg_max = argc-2;
/* Number of the segment being processed*/
u32 seg_curr = 0;
u32 track_id = 1;
u32 sample_index = 1;
/* Usage */
if (argc < 2) {
fprintf(stdout, "Usage: %s filename0 [filename1 filename2 ...]\n", argv[0]);
return 1;
}
#if defined(DEBUG) || defined(_DEBUG)
/* Enables GPAC memory tracking in debug mode only */
gf_sys_init(GF_MemTrackerSimple);
gf_log_set_tool_level(GF_LOG_CONTAINER, GF_LOG_INFO);
gf_log_set_tool_level(GF_LOG_MEMORY, GF_LOG_INFO);
#endif
/* First or init segment */
fprintf(stdout, "Process segment %5d/%5d: %s\n", seg_curr, seg_max, argv[seg_curr+1]);
e = gf_isom_open_progressive(argv[seg_curr+1], 0, 0, &movie, &missing_bytes);
if ((e != GF_OK && e != GF_ISOM_INCOMPLETE_FILE) || movie == NULL) {
fprintf(stdout, "Could not open file %s for reading (%s).\n", argv[seg_curr+1], gf_error_to_string(e));
return 1;
}
process_samples_from_track(movie, track_id, &sample_index);
seg_curr++;
/* Process segments */
while (seg_curr <= seg_max) {
fprintf(stdout, "Process segment %5d/%5d: %s\n", seg_curr, seg_max, argv[seg_curr+1]);
/* Open the segment */
e = gf_isom_open_segment(movie, argv[seg_curr+1], 0, 0, GF_FALSE);
if (e != GF_OK) {
fprintf(stdout, "Could not open segment %s for reading (%s).\n", argv[seg_curr+1], gf_error_to_string(e));
ret = 1;
goto exit;
}
/* Process the segment */
process_samples_from_track(movie, track_id, &sample_index);
/* Release the segment */
gf_isom_release_segment(movie, 1);
seg_curr++;
}
exit:
fprintf(stdout, "Total nb Samples: %d\n", gf_isom_get_sample_count(movie, gf_isom_get_track_by_id(movie, track_id) ) );
gf_isom_release_segment(movie, 1);
gf_isom_close(movie);
#if defined(DEBUG) || defined(_DEBUG)
/* Closes GPAC memory tracking in debug mode only */
gf_sys_close();
#endif
return ret;
}
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