main(){ uint64_t md5val; int i; uint8_t in[1000]; for(i=0; i<1000; i++) in[i]= i*i; av_md5_sum( (uint8_t*)&md5val, in, 1000); printf("%"PRId64"\n", md5val); av_md5_sum( (uint8_t*)&md5val, in, 63); printf("%"PRId64"\n", md5val); av_md5_sum( (uint8_t*)&md5val, in, 64); printf("%"PRId64"\n", md5val); av_md5_sum( (uint8_t*)&md5val, in, 65); printf("%"PRId64"\n", md5val); for(i=0; i<1000; i++) in[i]= i % 127; av_md5_sum( (uint8_t*)&md5val, in, 999); printf("%"PRId64"\n", md5val); }
int main(void){ uint8_t md5val[16]; int i; uint8_t in[1000]; for (i = 0; i < 1000; i++) in[i] = i * i; av_md5_sum(md5val, in, 1000); print_md5(md5val); av_md5_sum(md5val, in, 63); print_md5(md5val); av_md5_sum(md5val, in, 64); print_md5(md5val); av_md5_sum(md5val, in, 65); print_md5(md5val); for (i = 0; i < 1000; i++) in[i] = i % 127; av_md5_sum(md5val, in, 999); print_md5(md5val); return 0; }
int main(void){ uint8_t md5val[16]; int i; volatile uint8_t in[1000]; // volatile to workaround http://llvm.org/bugs/show_bug.cgi?id=20849 // FIXME remove volatile once it has been fixed and all fate clients are updated for (i = 0; i < 1000; i++) in[i] = i * i; av_md5_sum(md5val, in, 1000); print_md5(md5val); av_md5_sum(md5val, in, 63); print_md5(md5val); av_md5_sum(md5val, in, 64); print_md5(md5val); av_md5_sum(md5val, in, 65); print_md5(md5val); for (i = 0; i < 1000; i++) in[i] = i % 127; av_md5_sum(md5val, in, 999); print_md5(md5val); return 0; }
void av_cold av_lfg_init(AVLFG *c, unsigned int seed){ uint8_t tmp[16]={0}; int i; for(i=8; i<64; i+=4){ AV_WL32(tmp, seed); tmp[4]=i; av_md5_sum(tmp, tmp, 16); c->state[i ]= AV_RL32(tmp); c->state[i+1]= AV_RL32(tmp+4); c->state[i+2]= AV_RL32(tmp+8); c->state[i+3]= AV_RL32(tmp+12); } c->index=0; }
static char *mp_get_playback_resume_config_filename(struct MPContext *mpctx, const char *fname) { struct MPOpts *opts = mpctx->opts; char *res = NULL; void *tmp = talloc_new(NULL); const char *realpath = fname; bstr bfname = bstr0(fname); if (!mp_is_url(bfname)) { if (opts->ignore_path_in_watch_later_config) { realpath = mp_basename(fname); } else { char *cwd = mp_getcwd(tmp); if (!cwd) goto exit; realpath = mp_path_join(tmp, cwd, fname); } } if (bstr_startswith0(bfname, "dvd://") && opts->dvd_opts && opts->dvd_opts->device) realpath = talloc_asprintf(tmp, "%s - %s", realpath, opts->dvd_opts->device); if ((bstr_startswith0(bfname, "br://") || bstr_startswith0(bfname, "bd://") || bstr_startswith0(bfname, "bluray://")) && opts->bluray_device) realpath = talloc_asprintf(tmp, "%s - %s", realpath, opts->bluray_device); uint8_t md5[16]; av_md5_sum(md5, realpath, strlen(realpath)); char *conf = talloc_strdup(tmp, ""); for (int i = 0; i < 16; i++) conf = talloc_asprintf_append(conf, "%02X", md5[i]); if (!mpctx->cached_watch_later_configdir) { char *wl_dir = mpctx->opts->watch_later_directory; if (wl_dir && wl_dir[0]) { mpctx->cached_watch_later_configdir = mp_get_user_path(mpctx, mpctx->global, wl_dir); } } if (!mpctx->cached_watch_later_configdir) { mpctx->cached_watch_later_configdir = mp_find_user_config_file(mpctx, mpctx->global, MP_WATCH_LATER_CONF); } if (mpctx->cached_watch_later_configdir) res = mp_path_join(NULL, mpctx->cached_watch_later_configdir, conf); exit: talloc_free(tmp); return res; }
static void real_calc_response_and_checksum (char *response, char *chksum, char *challenge) { int ch_len; int i; unsigned char zres[16], buf[64]; /* initialize buffer */ AV_WB32(buf, 0xa1e9149d); AV_WB32(buf+4, 0x0e6b3b59); /* some (length) checks */ if (challenge != NULL) { ch_len = strlen (challenge); if (ch_len == 40) /* what a hack... */ ch_len=32; if ( ch_len > 56 ) ch_len=56; /* copy challenge to buf */ memcpy(buf+8, challenge, ch_len); memset(buf+8+ch_len, 0, 56-ch_len); } /* xor challenge bytewise with xor_table */ for (i=0; i<XOR_TABLE_SIZE; i++) buf[8+i] ^= xor_table[i]; av_md5_sum(zres, buf, 64); /* convert zres to ascii string */ for (i=0; i<16; i++ ) sprintf(response+i*2, "%02x", zres[i]); /* add tail */ strcpy (&response[32], "01d0a8e3"); /* calculate checksum */ for (i=0; i<8; i++) chksum[i] = response[i*4]; chksum[8] = 0; }
static char *mp_get_playback_resume_config_filename(struct mpv_global *global, const char *fname) { struct MPOpts *opts = global->opts; char *res = NULL; void *tmp = talloc_new(NULL); const char *realpath = fname; bstr bfname = bstr0(fname); if (!mp_is_url(bfname)) { if (opts->ignore_path_in_watch_later_config) { realpath = mp_basename(fname); } else { char *cwd = mp_getcwd(tmp); if (!cwd) goto exit; realpath = mp_path_join(tmp, bstr0(cwd), bstr0(fname)); } } if (bstr_startswith0(bfname, "dvd://")) realpath = talloc_asprintf(tmp, "%s - %s", realpath, opts->dvd_device); if (bstr_startswith0(bfname, "br://") || bstr_startswith0(bfname, "bd://") || bstr_startswith0(bfname, "bluray://")) realpath = talloc_asprintf(tmp, "%s - %s", realpath, opts->bluray_device); uint8_t md5[16]; av_md5_sum(md5, realpath, strlen(realpath)); char *conf = talloc_strdup(tmp, ""); for (int i = 0; i < 16; i++) conf = talloc_asprintf_append(conf, "%02X", md5[i]); res = talloc_asprintf(tmp, MP_WATCH_LATER_CONF "/%s", conf); res = mp_find_config_file(NULL, global, res); if (!res) { res = mp_find_config_file(tmp, global, MP_WATCH_LATER_CONF); if (res) res = talloc_asprintf(NULL, "%s/%s", res, conf); } exit: talloc_free(tmp); return res; }
void ff_rdt_calc_response_and_checksum(char response[41], char chksum[9], const char *challenge) { int ch_len = strlen (challenge), i; unsigned char zres[16], buf[64] = { 0xa1, 0xe9, 0x14, 0x9d, 0x0e, 0x6b, 0x3b, 0x59 }; #define XOR_TABLE_SIZE 37 const unsigned char xor_table[XOR_TABLE_SIZE] = { 0x05, 0x18, 0x74, 0xd0, 0x0d, 0x09, 0x02, 0x53, 0xc0, 0x01, 0x05, 0x05, 0x67, 0x03, 0x19, 0x70, 0x08, 0x27, 0x66, 0x10, 0x10, 0x72, 0x08, 0x09, 0x63, 0x11, 0x03, 0x71, 0x08, 0x08, 0x70, 0x02, 0x10, 0x57, 0x05, 0x18, 0x54 }; /* some (length) checks */ if (ch_len == 40) /* what a hack... */ ch_len = 32; else if (ch_len > 56) ch_len = 56; memcpy(buf + 8, challenge, ch_len); /* xor challenge bytewise with xor_table */ for (i = 0; i < XOR_TABLE_SIZE; i++) buf[8 + i] ^= xor_table[i]; av_md5_sum(zres, buf, 64); ff_data_to_hex(response, zres, 16, 1); /* add tail */ strcpy (response + 32, "01d0a8e3"); /* calculate checksum */ for (i = 0; i < 8; i++) chksum[i] = response[i * 4]; chksum[8] = 0; }
static char *mp_get_playback_resume_config_filename(struct mpv_global *global, const char *fname) { char *res = NULL; void *tmp = talloc_new(NULL); const char *realpath = fname; bstr bfname = bstr0(fname); if (!mp_is_url(bfname)) { char *cwd = mp_getcwd(tmp); if (!cwd) goto exit; realpath = mp_path_join(tmp, bstr0(cwd), bstr0(fname)); } #if HAVE_DVDREAD || HAVE_DVDNAV if (bstr_startswith0(bfname, "dvd://")) realpath = talloc_asprintf(tmp, "%s - %s", realpath, dvd_device); #endif #if HAVE_LIBBLURAY if (bstr_startswith0(bfname, "br://") || bstr_startswith0(bfname, "bd://") || bstr_startswith0(bfname, "bluray://")) realpath = talloc_asprintf(tmp, "%s - %s", realpath, bluray_device); #endif uint8_t md5[16]; av_md5_sum(md5, realpath, strlen(realpath)); char *conf = talloc_strdup(tmp, ""); for (int i = 0; i < 16; i++) conf = talloc_asprintf_append(conf, "%02X", md5[i]); conf = talloc_asprintf(tmp, "%s/%s", MP_WATCH_LATER_CONF, conf); res = mp_find_user_config_file(NULL, global, conf); exit: talloc_free(tmp); return res; }
/* Do something useful with the filtered data: this simple * example just prints the MD5 checksum of each plane to stdout. */ static int process_output(struct AVMD5 *md5, AVFrame *frame) { int planar = av_sample_fmt_is_planar(frame->format); int channels = av_get_channel_layout_nb_channels(frame->channel_layout); int planes = planar ? channels : 1; int bps = av_get_bytes_per_sample(frame->format); int plane_size = bps * frame->nb_samples * (planar ? 1 : channels); int i, j; for (i = 0; i < planes; i++) { uint8_t checksum[16]; av_md5_init(md5); av_md5_sum(checksum, frame->extended_data[i], plane_size); fprintf(stdout, "plane %d: 0x", i); for (j = 0; j < sizeof(checksum); j++) fprintf(stdout, "%02X", checksum[j]); fprintf(stdout, "\n"); } fprintf(stdout, "\n"); return 0; }
static void run_lavu_md5(uint8_t *output, const uint8_t *input, unsigned size) { av_md5_sum(output, input, size); }