#include <stdio.h>

#include <unistd.h>

#include <gpac/isomedia.h>

#include <gpac/internal/isomedia_dev.h>

#include <gpac/media_tools.h>

#include <gpac/constants.h>

#include <gpac/setup.h>

/*

** Reproducer command-line:

** MP4Box -fuzz-chk <poc>

*/

int LLVMFuzzerInitialize(int *argc, char ***argv) {

    gf_log_set_tool_level(GF_LOG_ALL, GF_LOG_QUIET);

    return 0;

}

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

    if (size < 8 || size > 65536) return 0;

    char filename[256];

    sprintf(filename, "/tmp/libfuzzer.%d", getpid());

    FILE *fp = fopen(filename, "wb");

    if (!fp) {

        return 0;

    }

    fwrite(data, size, 1, fp);

    fclose(fp);

    GF_ISOFile *movie = NULL;

    movie = gf_isom_open_file(filename, GF_ISOM_OPEN_READ_DUMP, NULL);

    if (movie != NULL) {

        u32 i, count = gf_isom_get_track_count(movie);

        for (i = 1; i <= count && i <= 16; i++) {

            gf_isom_get_media_type(movie, i);

            gf_isom_get_media_subtype(movie, i, 1);

            gf_isom_get_sample_count(movie, i);

            gf_isom_get_media_timescale(movie, i);

            u32 w, h;

            gf_isom_get_visual_info(movie, i, 1, &w, &h);

            u32 sr, nb_ch, bps;

            gf_isom_get_audio_info(movie, i, 1, &sr, &nb_ch, &bps);

            GF_DecoderConfig *dcfg = gf_isom_get_decoder_config(movie, i, 1);

            if (dcfg) gf_odf_desc_del((GF_Descriptor *)dcfg);

        }

        gf_isom_close(movie);

    }

    unlink(filename);

    return 0;

}