664 if (
avio_seek(pb, last_pos + 1, SEEK_SET) < 0)
713 int max_size, uint64_t *number)
726 "Read error at pos. %"PRIu64
" (0x%"PRIx64
")\n",
735 if (read > max_size) {
738 "Invalid EBML number size tag 0x%02x at pos %"PRIu64
" (0x%"PRIx64
")\n",
746 total = (total << 8) |
avio_r8(pb);
762 if (res > 0 && *number + 1 == 1ULL << (7 * res))
763 *number = 0xffffffffffffffULL;
781 *num = (*num << 8) |
avio_r8(pb);
804 *num = (*num << 8) |
avio_r8(pb);
921 *num = unum - ((1LL << (7 * res - 1)) - 1);
930 uint32_t
id,
void *
data)
933 for (i = 0; syntax[i].
id; i++)
934 if (
id == syntax[i].
id)
964 for (i = 0; syntax[i].
id; i++)
965 switch (syntax[i].
type) {
967 *(uint64_t *) ((
char *) data + syntax[i].
data_offset) = syntax[i].def.
u;
970 *(
double *) ((
char *) data + syntax[i].data_offset) = syntax[i].
def.
f;
975 if (syntax[i].def.
s) {
1040 uint32_t
id = syntax->
id;
1052 list->
elem = newelem;
1062 if (max_lengths[syntax->
type] && length > max_lengths[syntax->
type]) {
1064 "Invalid length 0x%"PRIx64
" > 0x%"PRIx64
" for syntax element %i\n",
1065 length, max_lengths[syntax->
type], syntax->
type);
1070 switch (syntax->
type) {
1121 for (i = 0; syntax[i].
id; i++) {
1122 void *data_off = (
char *) data + syntax[i].data_offset;
1123 switch (syntax[i].
type) {
1133 if (syntax[i].list_elem_size) {
1135 char *ptr = list->
elem;
1136 for (j = 0; j < list->
nb_elem;
1154 int len_mask = 0x80,
size = 1,
n = 1, i;
1162 while (
size <= 8 && !(total & len_mask)) {
1168 total &= (len_mask - 1);
1170 total = (total << 8) | p->
buf[4 +
n++];
1182 if (total < probelen)
1184 for (
n = 4 +
size;
n <= 4 +
size + total - probelen;
n++)
1200 if (tracks[i].num == num)
1212 int isize = *buf_size;
1215 int pkt_size = isize;
1219 if (pkt_size >= 10000000
U)
1222 switch (encodings[0].compression.algo) {
1228 if (header_size && !header) {
1236 pkt_size = isize + header_size;
1241 memcpy(pkt_data, header, header_size);
1242 memcpy(pkt_data + header_size, data, isize);
1248 olen = pkt_size *= 3;
1254 pkt_data = newpktdata;
1267 z_stream zstream = { 0 };
1268 if (inflateInit(&zstream) != Z_OK)
1270 zstream.next_in =
data;
1271 zstream.avail_in = isize;
1276 inflateEnd(&zstream);
1280 pkt_data = newpktdata;
1281 zstream.avail_out = pkt_size - zstream.total_out;
1282 zstream.next_out = pkt_data + zstream.total_out;
1283 result = inflate(&zstream, Z_NO_FLUSH);
1284 }
while (result == Z_OK && pkt_size < 10000000);
1285 pkt_size = zstream.total_out;
1286 inflateEnd(&zstream);
1287 if (result != Z_STREAM_END) {
1288 if (result == Z_MEM_ERROR)
1300 bz_stream bzstream = { 0 };
1301 if (BZ2_bzDecompressInit(&bzstream, 0, 0) != BZ_OK)
1303 bzstream.next_in =
data;
1304 bzstream.avail_in = isize;
1309 BZ2_bzDecompressEnd(&bzstream);
1313 pkt_data = newpktdata;
1314 bzstream.avail_out = pkt_size - bzstream.total_out_lo32;
1315 bzstream.next_out = pkt_data + bzstream.total_out_lo32;
1316 result = BZ2_bzDecompress(&bzstream);
1317 }
while (result == BZ_OK && pkt_size < 10000000);
1318 pkt_size = bzstream.total_out_lo32;
1319 BZ2_bzDecompressEnd(&bzstream);
1320 if (result != BZ_STREAM_END) {
1321 if (result == BZ_MEM_ERROR)
1335 *buf_size = pkt_size;
1350 for (i = 0; i < list->
nb_elem; i++) {
1351 const char *lang = tags[i].
lang &&
1352 strcmp(tags[i].lang,
"und") ? tags[i].
lang :
NULL;
1354 if (!tags[i].
name) {
1359 snprintf(key,
sizeof(key),
"%s/%s", prefix, tags[i].name);
1362 if (tags[i].def || !lang) {
1364 if (tags[i].sub.nb_elem)
1371 if (tags[i].sub.nb_elem)
1385 if (tags[i].target.attachuid) {
1388 if (attachment[j].
uid == tags[i].target.attachuid &&
1391 &attachment[j].stream->metadata,
NULL);
1392 }
else if (tags[i].target.chapteruid) {
1395 if (chapter[j].
uid == tags[i].target.chapteruid &&
1398 &chapter[j].chapter->metadata,
NULL);
1399 }
else if (tags[i].target.trackuid) {
1402 if (track[j].
uid == tags[i].target.trackuid && track[j].
stream)
1404 &track[j].stream->metadata,
NULL);
1415 uint32_t level_up = matroska->
level_up;
1429 "Max EBML element depth (%d) reached, "
1434 level.
length = (uint64_t) -1;
1439 ret =
ebml_parse(matroska, matroska_segment, matroska);
1444 if (length == (uint64_t) -1)
1466 for (i = 0; i < seekhead_list->
nb_elem; i++) {
1468 uint32_t
id = seekheads[i].
id;
1469 uint64_t pos = seekheads[i].
pos;
1472 if (!elem || elem->
parsed)
1495 uint64_t index_scale = 1;
1501 index_list = &matroska->
index;
1502 index = index_list->
elem;
1508 for (i = 0; i < index_list->
nb_elem; i++) {
1511 for (j = 0; j < pos_list->
nb_elem; j++) {
1514 if (track && track->stream)
1517 index[i].
time / index_scale, 0, 0,
1544 static const char *
const aac_profiles[] = {
"MAIN",
"LC",
"SSR" };
1547 for (profile = 0; profile <
FF_ARRAY_ELEMS(aac_profiles); profile++)
1548 if (strstr(codec_id, aac_profiles[profile]))
1567 time_t creation_time = date_utc / 1000000000 + 978307200;
1568 struct tm tmpbuf, *ptm =
gmtime_r(&creation_time, &tmpbuf);
1570 if (strftime(buffer,
sizeof(buffer),
"%Y-%m-%d %H:%M:%S", ptm))
1571 av_dict_set(metadata,
"creation_time", buffer, 0);
1595 int block_last, block_type, block_size;
1601 if (block_size > size)
1610 chmask =
av_dict_get(dict,
"WAVEFORMATEXTENSIBLE_CHANNEL_MASK",
NULL, 0);
1613 if (!mask || mask & ~0x3ffffULL) {
1615 "Invalid value of WAVEFORMATEXTENSIBLE_CHANNEL_MASK\n");
1643 int extradata_size = 0;
1644 int extradata_offset = 0;
1645 uint32_t fourcc = 0;
1647 char* key_id_base64 =
NULL;
1656 "Unknown or unsupported track type %"PRIu64
"\n",
1666 "Invalid sample rate %f, defaulting to 8000 instead.\n",
1684 if (encodings_list->
nb_elem > 1) {
1686 "Multiple combined encodings not supported");
1687 }
else if (encodings_list->
nb_elem == 1) {
1688 if (encodings[0].
type) {
1689 if (encodings[0].encryption.key_id.size > 0) {
1692 const int b64_size =
AV_BASE64_SIZE(encodings[0].encryption.key_id.size);
1694 if (key_id_base64 ==
NULL)
1698 encodings[0].encryption.key_id.data,
1701 encodings[0].
scope = 0;
1703 "Unsupported encoding type");
1716 encodings[0].
scope = 0;
1718 "Unsupported encoding type");
1728 "Failed to decode codec private data\n");
1750 if (key_id_base64) {
1756 if (!strcmp(track->
codec_id,
"V_MS/VFW/FOURCC") &&
1767 extradata_offset = 40;
1768 }
else if (!strcmp(track->
codec_id,
"A_MS/ACM") &&
1780 }
else if (!strcmp(track->
codec_id,
"A_QUICKTIME")
1789 }
else if (!strcmp(track->
codec_id,
"V_QUICKTIME") &&
1833 extradata[0] = (profile << 3) | ((sri & 0x0E) >> 1);
1834 extradata[1] = ((sri & 0x01) << 7) | (track->
audio.
channels << 3);
1835 if (strstr(track->
codec_id,
"SBR")) {
1837 extradata[2] = 0x56;
1838 extradata[3] = 0xE5;
1839 extradata[4] = 0x80 | (sri << 3);
1852 AV_WB32(extradata, extradata_size);
1853 memcpy(&extradata[4],
"alac", 4);
1858 extradata_size = 30;
1869 "Too large audio channel number %"PRIu64
1870 " or bitdepth %"PRIu64
". Skipping track.\n",
1890 extradata_offset = 26;
1926 static const int sipr_bit_rate[4] = { 6504, 8496, 5000, 16000 };
1931 extradata_offset = 78;
1944 "Unknown/unsupported AVCodecID %s.\n", track->
codec_id);
1949 1000 * 1000 * 1000);
1958 if (strcmp(track->language,
"und"))
1962 if (track->flag_default)
1964 if (track->flag_forced)
1971 }
else if (track->codec_priv.data && track->codec_priv.size > 0) {
1975 track->codec_priv.data + extradata_offset,
1976 track->codec_priv.size);
1992 st->
codec->
width * track->video.display_height,
1997 if (track->default_duration) {
1999 1000000000, track->default_duration, 30000);
2000 #if FF_API_R_FRAME_RATE
2012 if (track->video.alpha_mode)
2016 for (j=0; j < track->operation.combine_planes.nb_elem; j++) {
2020 snprintf(buf,
sizeof(buf),
"%s_%d",
2023 if (planes[j].
uid == tracks[k].
uid && tracks[k].stream) {
2025 "stereo_mode", buf, 0);
2031 track->video.stereo_mode != 10 && track->video.stereo_mode != 12) {
2046 if (track->codec_delay > 0) {
2051 if (track->seek_preroll > 0) {
2060 if (!strcmp(track->codec_id,
"D_WEBVTT/CAPTIONS")) {
2062 }
else if (!strcmp(track->codec_id,
"D_WEBVTT/DESCRIPTIONS")) {
2064 }
else if (!strcmp(track->codec_id,
"D_WEBVTT/METADATA")) {
2070 matroska->contains_ssa = 1;
2084 uint64_t max_start = 0;
2093 if (
ebml_parse(matroska, ebml_syntax, &ebml) ||
2095 ebml.
max_size >
sizeof(uint64_t) ||
2100 "EBML header using unsupported features\n"
2101 "(EBML version %"PRIu64
", doctype %s, doc version %"PRIu64
")\n",
2107 "EBML header using unsupported features\n"
2108 "(EBML version %"PRIu64
", doctype %s, doc version %"PRIu64
")\n",
2125 res =
ebml_parse(matroska, matroska_segments, matroska);
2132 res =
ebml_parse(matroska, matroska_segment, matroska);
2151 attachments = attachments_list->
elem;
2152 for (j = 0; j < attachments_list->
nb_elem; j++) {
2153 if (!(attachments[j].filename && attachments[j].mime &&
2154 attachments[j].bin.data && attachments[j].
bin.
size > 0)) {
2196 attachments[j].
stream = st;
2201 chapters = chapters_list->
elem;
2202 for (i = 0; i < chapters_list->
nb_elem; i++)
2204 (max_start == 0 || chapters[i].
start > max_start)) {
2208 chapters[i].
start, chapters[i].
end,
2210 if (chapters[i].chapter) {
2212 "title", chapters[i].
title, 0);
2214 max_start = chapters[i].
start;
2242 matroska->
packets = newpackets;
2272 int *buf_size,
int type,
2273 uint32_t **lace_buf,
int *laces)
2275 int res = 0,
n,
size = *buf_size;
2277 uint32_t *lace_size;
2285 *lace_buf[0] =
size;
2293 lace_size =
av_mallocz(*laces *
sizeof(
int));
2302 for (
n = 0; res == 0 &&
n < *laces - 1;
n++) {
2304 if (size <= total) {
2310 lace_size[
n] +=
temp;
2317 if (size <= total) {
2322 lace_size[
n] = size - total;
2327 if (size % (*laces)) {
2331 for (
n = 0;
n < *laces;
n++)
2332 lace_size[
n] = size / *laces;
2340 if (n < 0 || num > INT_MAX) {
2342 "EBML block data error\n");
2348 total = lace_size[0] = num;
2349 for (
n = 1; res == 0 &&
n < *laces - 1;
n++) {
2353 if (r < 0 || lace_size[
n - 1] + snum > (uint64_t)INT_MAX) {
2355 "EBML block data error\n");
2361 lace_size[
n] = lace_size[
n - 1] + snum;
2362 total += lace_size[
n];
2364 if (size <= total) {
2368 lace_size[*laces - 1] = size - total;
2374 *lace_buf = lace_size;
2397 if (size < cfs * h / 2) {
2399 "Corrupt int4 RM-style audio packet size\n");
2402 for (x = 0; x < h / 2; x++)
2403 memcpy(track->
audio.
buf + x * 2 * w + y * cfs,
2404 data + x * cfs, cfs);
2408 "Corrupt sipr RM-style audio packet size\n");
2411 memcpy(track->
audio.
buf + y * w, data, w);
2413 if (size < sps * w / sps || h<=0 || w%sps) {
2415 "Corrupt generic RM-style audio packet size\n");
2418 for (x = 0; x < w / sps; x++)
2420 sps * (h * x + ((h + 1) / 2) * (y & 1) + (y >> 1)),
2421 data + x * sps, sps);
2467 if (srclen < 12 || track->stream->codec->extradata_size < 2)
2476 while (srclen >= 8) {
2482 uint32_t crc =
AV_RL32(src + 4);
2486 multiblock = (flags & 0x1800) != 0x1800;
2498 if (blocksize > srclen) {
2503 tmp =
av_realloc(dst, dstlen + blocksize + 32);
2509 dstlen += blocksize + 32;
2512 AV_WL32(dst + offset + 4, blocksize + 24);
2513 AV_WL16(dst + offset + 8, ver);
2514 AV_WL16(dst + offset + 10, 0);
2515 AV_WL32(dst + offset + 12, 0);
2516 AV_WL32(dst + offset + 16, 0);
2517 AV_WL32(dst + offset + 20, samples);
2518 AV_WL32(dst + offset + 24, flags);
2519 AV_WL32(dst + offset + 28, crc);
2520 memcpy(dst + offset + 32, src, blocksize);
2523 srclen -= blocksize;
2524 offset += blocksize + 32;
2547 int id_len, settings_len, text_len;
2555 q = data + data_len;
2560 if (*p ==
'\r' || *p ==
'\n') {
2569 if (p >= q || *p !=
'\n')
2576 if (*p ==
'\r' || *p ==
'\n') {
2577 settings_len = p - settings;
2585 if (p >= q || *p !=
'\n')
2591 while (text_len > 0) {
2592 const int len = text_len - 1;
2594 if (c !=
'\r' && c !=
'\n')
2611 memcpy(pkt->
data, text, text_len);
2621 memcpy(buf,
id, id_len);
2624 if (settings_len > 0) {
2632 memcpy(buf, settings, settings_len);
2639 pkt->
pts = timecode;
2656 uint64_t timecode, uint64_t lace_duration,
2658 uint8_t *additional, uint64_t additional_id,
int additional_size,
2659 int64_t discard_padding)
2666 if (encodings && !encodings->
type && encodings->
scope & 1) {
2677 "Error parsing a wavpack block.\n");
2680 if (pkt_data != data)
2701 bytestream_put_be32(&buf, pkt_size);
2702 bytestream_put_be32(&buf,
MKBETAG(
'i',
'c',
'p',
'f'));
2705 memcpy(pkt->
data + offset, pkt_data, pkt_size);
2707 if (pkt_data != data)
2713 if (additional_size > 0) {
2716 additional_size + 8);
2722 AV_WB64(side_data, additional_id);
2723 memcpy(side_data + 8, additional, additional_size);
2726 if (discard_padding) {
2742 pkt->
dts = timecode;
2744 pkt->
pts = timecode;
2759 lace_duration <= INT_MAX) {
2776 if (pkt_data != data)
2782 int size, int64_t pos, uint64_t cluster_time,
2784 uint8_t *additional, uint64_t additional_id,
int additional_size,
2785 int64_t cluster_pos, int64_t discard_padding)
2792 uint32_t *lace_size =
NULL;
2795 int trust_default_duration = 1;
2805 if (!track || !track->
stream) {
2807 "Invalid stream %"PRIu64
" or size %u\n", num, size);
2809 }
else if (size <= 3)
2820 if (is_keyframe == -1)
2823 if (cluster_time != (uint64_t) -1 &&
2824 (block_time >= 0 || cluster_time >= -block_time)) {
2825 timecode = cluster_time + block_time - track->
codec_delay;
2827 timecode < track->end_timecode)
2836 if (timecode < matroska->skip_to_timecode)
2847 &lace_size, &laces);
2856 trust_default_duration = 0;
2860 if (!block_duration && trust_default_duration)
2863 if (cluster_time != (uint64_t)-1 && (block_time >= 0 || cluster_time >= -block_time))
2867 for (n = 0; n < laces; n++) {
2868 int64_t lace_duration = block_duration*(n+1) / laces - block_duration*n / laces;
2870 if (lace_size[n] > size) {
2889 timecode, lace_duration,
2895 timecode, lace_duration, pos,
2896 !n ? is_keyframe : 0,
2897 additional, additional_id, additional_size,
2904 timecode = lace_duration ? timecode + lace_duration :
AV_NOPTS_VALUE;
2905 data += lace_size[
n];
2906 size -= lace_size[
n];
2920 matroska_cluster_incremental_parsing,
2935 matroska_clusters_incremental,
2940 matroska_cluster_incremental_parsing,
2948 blocks = blocks_list->
elem;
2952 if (blocks[i].bin.size > 0 && blocks[i].
bin.
data) {
2956 if (!blocks[i].non_simple)
2986 res =
ebml_parse(matroska, matroska_clusters, &cluster);
2987 blocks_list = &cluster.
blocks;
2988 blocks = blocks_list->
elem;
2989 for (i = 0; i < blocks_list->
nb_elem; i++)
2990 if (blocks[i].bin.size > 0 && blocks[i].
bin.
data) {
2995 is_keyframe,
NULL, 0, 0, pos,
3018 int64_t timestamp,
int flags)
3023 int i,
index, index_sub, index_min;
3063 while (index_sub >= 0 &&
3065 tracks[i].stream->index_entries[index_sub].pos < st->
index_entries[index_min].
pos &&
3132 for (i = 1; i < nb_index_entries; i++) {
3133 if (index_entries[i - 1].timestamp * matroska->
time_scale <= ts &&
3141 if (i != nb_index_entries - 1) {
3157 int64_t cluster_pos, before_pos;
3162 if (index < 0)
return 0;
3166 int64_t cluster_id = 0, cluster_length = 0;
3172 if (cluster_id != 0xF43B675) {
3183 cluster_pos += cluster_length + 12;
3194 double min_buffer,
double*
buffer,
3198 double nano_seconds_per_second = 1000000000.0;
3199 double time_sec = time_ns / nano_seconds_per_second;
3201 int64_t time_to_search_ns = (int64_t)(search_sec * nano_seconds_per_second);
3202 int64_t end_time_ns = time_ns + time_to_search_ns;
3203 double sec_downloaded = 0.0;
3207 *sec_to_download = 0.0;
3211 int64_t cue_nano = desc_curr.
end_time_ns - time_ns;
3214 double timeToDownload = (cueBytes * 8.0) /
bps;
3216 sec_downloaded += (cue_nano / nano_seconds_per_second) - timeToDownload;
3217 *sec_to_download += timeToDownload;
3221 double desc_end_time_sec = desc_curr.
end_time_ns / nano_seconds_per_second;
3222 double percent_to_sub = search_sec / (desc_end_time_sec - time_sec);
3223 sec_downloaded = percent_to_sub * sec_downloaded;
3224 *sec_to_download = percent_to_sub * *sec_to_download;
3227 if ((sec_downloaded + *buffer) <= min_buffer) {
3238 double desc_sec = desc_ns / nano_seconds_per_second;
3239 double bits = (desc_bytes * 8.0);
3240 double time_to_download = bits /
bps;
3242 sec_downloaded += desc_sec - time_to_download;
3243 *sec_to_download += time_to_download;
3246 double desc_end_time_sec = desc_curr.
end_time_ns / nano_seconds_per_second;
3247 double percent_to_sub = search_sec / (desc_end_time_sec - time_sec);
3248 sec_downloaded = percent_to_sub * sec_downloaded;
3249 *sec_to_download = percent_to_sub * *sec_to_download;
3251 if ((sec_downloaded + *buffer) <= min_buffer)
3256 if ((sec_downloaded + *buffer) <= min_buffer) {
3263 *buffer = *buffer + sec_downloaded;
3278 double bandwidth = 0.0;
3282 int64_t prebuffer_ns = 1000000000;
3284 double nano_seconds_per_second = 1000000000.0;
3285 int64_t prebuffered_ns = time_ns + prebuffer_ns;
3286 double prebuffer_bytes = 0.0;
3287 int64_t temp_prebuffer_ns = prebuffer_ns;
3288 int64_t pre_bytes, pre_ns;
3289 double pre_sec, prebuffer, bits_per_second;
3307 bits_per_second = 0.0;
3313 pre_sec = pre_ns / nano_seconds_per_second;
3315 pre_bytes * ((temp_prebuffer_ns / nano_seconds_per_second) / pre_sec);
3317 prebuffer = prebuffer_ns / nano_seconds_per_second;
3320 bits_per_second = 0.0;
3324 double desc_sec = desc_ns / nano_seconds_per_second;
3325 double calc_bits_per_second = (desc_bytes * 8) / desc_sec;
3328 double percent = (desc_bytes - prebuffer_bytes) / desc_bytes;
3329 double mod_bits_per_second = calc_bits_per_second * percent;
3331 if (prebuffer < desc_sec) {
3337 int64_t
bps = (int64_t)(mod_bits_per_second) + 1;
3338 const double min_buffer = 0.0;
3339 double buffer = prebuffer;
3340 double sec_to_download = 0.0;
3343 min_buffer, &buffer, &sec_to_download,
3347 }
else if (rv == 0) {
3348 bits_per_second = (double)(bps);
3356 if (bandwidth < bits_per_second) bandwidth = bits_per_second;
3358 return (int64_t)bandwidth;
3367 int64_t cues_start = -1, cues_end = -1, before_pos, bandwidth;
3371 for (i = 0; i < seekhead_list->
nb_elem; i++)
3375 if (i >= seekhead_list->
nb_elem)
return -1;
3379 if (
avio_seek(matroska->
ctx->
pb, cues_start, SEEK_SET) == cues_start) {
3383 uint64_t cues_length = 0, cues_id = 0, bytes_read = 0;
3386 cues_end = cues_start + cues_length + bytes_read - 1;
3389 if (cues_start == -1 || cues_end == -1)
return -1;
3402 if (bandwidth < 0)
return -1;
3411 if (!buf)
return -1;
3414 snprintf(buf, (i + 1) * 20 *
sizeof(
char),
3417 strncat(buf,
",",
sizeof(
char));
3446 if (!buf)
return AVERROR(ENOMEM);
3464 .
name =
"matroska,webm",
3466 .extensions =
"mkv,mk3d,mka,mks",
3473 .mime_type =
"audio/webm,audio/x-matroska,video/webm,video/x-matroska"
3477 .
name =
"webm_dash_manifest",