/*
* Matroska file demuxer
- * Copyright (c) 2003-2008 The FFmpeg Project
+ * Copyright (c) 2003-2008 The Libav Project
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Matroska file demuxer
- * by Ronald Bultje <rbultje@ronald.bitfreak.net>
- * with a little help from Moritz Bunkus <moritz@bunkus.org>
- * totally reworked by Aurelien Jacobs <aurel@gnuage.org>
- * Specs available on the Matroska project page: http://www.matroska.org/.
+ * @author Ronald Bultje <rbultje@ronald.bitfreak.net>
+ * @author with a little help from Moritz Bunkus <moritz@bunkus.org>
+ *
@author totally reworked by Aurelien Jacobs <aurel@gnuage.org>
+ * @see specs available on the Matroska project page: http://www.matroska.org/
*/
#include <stdio.h>
#include "avformat.h"
#include "internal.h"
+#include "avio_internal.h"
/* For ff_codec_get_id(). */
#include "riff.h"
#include "isom.h"
-#include "rm.h"
+#include "rmsipr.h"
#include "matroska.h"
+#include "libavcodec/bytestream.h"
#include "libavcodec/mpeg4audio.h"
-#include "libavutil/intfloat_readwrite.h"
+#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/avstring.h"
#include "libavutil/lzo.h"
+#include "libavutil/dict.h"
#if CONFIG_ZLIB
#include <zlib.h>
#endif
EBML_NEST,
EBML_PASS,
EBML_STOP,
+ EBML_TYPE_COUNT
} EbmlType;
typedef const struct EbmlSyntax {
int sub_packet_size;
int sub_packet_cnt;
int pkt_cnt;
+ uint64_t buf_timecode;
uint8_t *buf;
} MatroskaTrackAudio;
uint64_t length;
} MatroskaLevel;
+typedef struct {
+ uint64_t timecode;
+ EbmlList blocks;
+} MatroskaCluster;
+
typedef struct {
AVFormatContext *ctx;
/* What to skip before effectively reading a packet. */
int skip_to_keyframe;
uint64_t skip_to_timecode;
+
+ /* File has a CUES element, but we defer parsing until it is needed. */
+ int cues_parsing_deferred;
+
+ int current_cluster_num_blocks;
+ int64_t current_cluster_pos;
+ MatroskaCluster current_cluster;
+
+ /* File has SSA subtitles which prevent incremental cluster parsing. */
+ int contains_ssa;
} MatroskaDemuxContext;
typedef struct {
EbmlBin bin;
} MatroskaBlock;
-typedef struct {
- uint64_t timecode;
- EbmlList blocks;
-} MatroskaCluster;
-
static EbmlSyntax ebml_header[] = {
{ EBML_ID_EBMLREADVERSION, EBML_UINT, 0, offsetof(Ebml,version), {.u=EBML_VERSION} },
{ EBML_ID_EBMLMAXSIZELENGTH, EBML_UINT, 0, offsetof(Ebml,max_size), {.u=8} },
{ MATROSKA_ID_SIMPLEBLOCK, EBML_BIN, 0, offsetof(MatroskaBlock,bin) },
{ MATROSKA_ID_BLOCKDURATION, EBML_UINT, 0, offsetof(MatroskaBlock,duration), {.u=AV_NOPTS_VALUE} },
{ MATROSKA_ID_BLOCKREFERENCE, EBML_UINT, 0, offsetof(MatroskaBlock,reference) },
+ { MATROSKA_ID_CODECSTATE, EBML_NONE },
{ 1, EBML_UINT, 0, offsetof(MatroskaBlock,non_simple), {.u=1} },
{ 0 }
};
{ 0 }
};
-static const char *matroska_doctypes[] = { "matroska", "webm" };
+static EbmlSyntax matroska_cluster_incremental_parsing[] = {
+ { MATROSKA_ID_CLUSTERTIMECODE,EBML_UINT,0, offsetof(MatroskaCluster,timecode) },
+ { MATROSKA_ID_BLOCKGROUP, EBML_NEST, sizeof(MatroskaBlock), offsetof(MatroskaCluster,blocks), {.n=matroska_blockgroup} },
+ { MATROSKA_ID_SIMPLEBLOCK, EBML_PASS, sizeof(MatroskaBlock), offsetof(MatroskaCluster,blocks), {.n=matroska_blockgroup} },
+ { MATROSKA_ID_CLUSTERPOSITION,EBML_NONE },
+ { MATROSKA_ID_CLUSTERPREVSIZE,EBML_NONE },
+ { MATROSKA_ID_INFO, EBML_NONE },
+ { MATROSKA_ID_CUES, EBML_NONE },
+ { MATROSKA_ID_TAGS, EBML_NONE },
+ { MATROSKA_ID_SEEKHEAD, EBML_NONE },
+ { MATROSKA_ID_CLUSTER, EBML_STOP },
+ { 0 }
+};
+
+static EbmlSyntax matroska_cluster_incremental[] = {
+ { MATROSKA_ID_CLUSTERTIMECODE,EBML_UINT,0, offsetof(MatroskaCluster,timecode) },
+ { MATROSKA_ID_BLOCKGROUP, EBML_STOP },
+ { MATROSKA_ID_SIMPLEBLOCK, EBML_STOP },
+ { MATROSKA_ID_CLUSTERPOSITION,EBML_NONE },
+ { MATROSKA_ID_CLUSTERPREVSIZE,EBML_NONE },
+ { 0 }
+};
+
+static EbmlSyntax matroska_clusters_incremental[] = {
+ { MATROSKA_ID_CLUSTER, EBML_NEST, 0, 0, {.n=matroska_cluster_incremental} },
+ { MATROSKA_ID_INFO, EBML_NONE },
+ { MATROSKA_ID_CUES, EBML_NONE },
+ { MATROSKA_ID_TAGS, EBML_NONE },
+ { MATROSKA_ID_SEEKHEAD, EBML_NONE },
+ { 0 }
+};
+
+static const char *const matroska_doctypes[] = { "matroska", "webm" };
+
+static int matroska_resync(MatroskaDemuxContext *matroska, int64_t last_pos)
+{
+ AVIOContext *pb = matroska->ctx->pb;
+ uint32_t id;
+ matroska->current_id = 0;
+ matroska->num_levels = 0;
+
+ /* seek to next position to resync from */
+ if (avio_seek(pb, last_pos + 1, SEEK_SET) < 0)
+ goto eof;
+
+ id = avio_rb32(pb);
+
+ // try to find a toplevel element
+ while (!pb->eof_reached) {
+ if (id == MATROSKA_ID_INFO || id == MATROSKA_ID_TRACKS ||
+ id == MATROSKA_ID_CUES || id == MATROSKA_ID_TAGS ||
+ id == MATROSKA_ID_SEEKHEAD || id == MATROSKA_ID_ATTACHMENTS ||
+ id == MATROSKA_ID_CLUSTER || id == MATROSKA_ID_CHAPTERS) {
+ matroska->current_id = id;
+ return 0;
+ }
+ id = (id << 8) | avio_r8(pb);
+ }
+eof:
+ matroska->done = 1;
+ return AVERROR_EOF;
+}
/*
* Return: Whether we reached the end of a level in the hierarchy or not.
*/
static int ebml_level_end(MatroskaDemuxContext *matroska)
{
- ByteIOContext *pb = matroska->ctx->pb;
- int64_t pos = url_ftell(pb);
+ AVIOContext *pb = matroska->ctx->pb;
+ int64_t pos = avio_tell(pb);
if (matroska->num_levels > 0) {
MatroskaLevel *level = &matroska->levels[matroska->num_levels - 1];
* number.
* Returns: number of bytes read, < 0 on error
*/
-static int ebml_read_num(MatroskaDemuxContext *matroska, ByteIOContext *pb,
+static int ebml_read_num(MatroskaDemuxContext *matroska, AVIOContext *pb,
int max_size, uint64_t *number)
{
int read = 1, n = 1;
uint64_t total = 0;
- /* The first byte tells us the length in bytes - get_byte() can normally
+ /* The first byte tells us the length in bytes - avio_r8() can normally
* return 0, but since that's not a valid first ebmlID byte, we can
* use it safely here to catch EOS. */
- if (!(total = get_byte(pb))) {
+ if (!(total = avio_r8(pb))) {
/* we might encounter EOS here */
- if (!url_feof(pb)) {
- int64_t pos = url_ftell(pb);
+ if (!pb->eof_reached) {
+ int64_t pos = avio_tell(pb);
av_log(matroska->ctx, AV_LOG_ERROR,
"Read error at pos. %"PRIu64" (0x%"PRIx64")\n",
pos, pos);
+ return pb->error ? pb->error : AVERROR(EIO);
}
- return AVERROR(EIO); /* EOS or actual I/O error */
+ return AVERROR_EOF;
}
/* get the length of the EBML number */
read = 8 - ff_log2_tab[total];
if (read > max_size) {
- int64_t pos = url_ftell(pb) - 1;
+ int64_t pos = avio_tell(pb) - 1;
av_log(matroska->ctx, AV_LOG_ERROR,
"Invalid EBML number size tag 0x%02x at pos %"PRIu64" (0x%"PRIx64")\n",
(uint8_t) total, pos, pos);
/* read out length */
total ^= 1 << ff_log2_tab[total];
while (n++ < read)
- total = (total << 8) | get_byte(pb);
+ total = (total << 8) | avio_r8(pb);
*number = total;
* This needs special handling for the "unknown length" case which has multiple
* encodings.
*/
-static int ebml_read_length(MatroskaDemuxContext *matroska, ByteIOContext *pb,
+static int ebml_read_length(MatroskaDemuxContext *matroska, AVIOContext *pb,
uint64_t *number)
{
int res = ebml_read_num(matroska, pb, 8, number);
* Read the next element as an unsigned int.
* 0 is success, < 0 is failure.
*/
-static int ebml_read_uint(ByteIOContext *pb, int size, uint64_t *num)
+static int ebml_read_uint(AVIOContext *pb, int size, uint64_t *num)
{
int n = 0;
/* big-endian ordering; build up number */
*num = 0;
while (n++ < size)
- *num = (*num << 8) | get_byte(pb);
+ *num = (*num << 8) | avio_r8(pb);
return 0;
}
* Read the next element as a float.
* 0 is success, < 0 is failure.
*/
-static int ebml_read_float(ByteIOContext *pb, int size, double *num)
+static int ebml_read_float(AVIOContext *pb, int size, double *num)
{
if (size == 0) {
*num = 0;
} else if (size == 4) {
- *num= av_int2flt(get_be32(pb));
- } else if(size==8){
- *num= av_int2dbl(get_be64(pb));
+ *num = av_int2float(avio_rb32(pb));
+ } else if (size == 8){
+ *num = av_int2double(avio_rb64(pb));
} else
return AVERROR_INVALIDDATA;
* Read the next element as an ASCII string.
* 0 is success, < 0 is failure.
*/
-static int ebml_read_ascii(ByteIOContext *pb, int size, char **str)
+static int ebml_read_ascii(AVIOContext *pb, int size, char **str)
{
- av_free(*str);
+ char *res;
+
/* EBML strings are usually not 0-terminated, so we allocate one
* byte more, read the string and NULL-terminate it ourselves. */
- if (!(*str = av_malloc(size + 1)))
+ if (!(res = av_malloc(size + 1)))
return AVERROR(ENOMEM);
- if (get_buffer(pb, (uint8_t *) *str, size) != size) {
- av_freep(str);
+ if (avio_read(pb, (uint8_t *) res, size) != size) {
+ av_free(res);
return AVERROR(EIO);
}
- (*str)[size] = '\0';
+ (res)[size] = '\0';
+ av_free(*str);
+ *str = res;
return 0;
}
* Read the next element as binary data.
* 0 is success, < 0 is failure.
*/
-static int ebml_read_binary(ByteIOContext *pb, int length, EbmlBin *bin)
+static int ebml_read_binary(AVIOContext *pb, int length, EbmlBin *bin)
{
av_free(bin->data);
if (!(bin->data = av_malloc(length)))
return AVERROR(ENOMEM);
bin->size = length;
- bin->pos = url_ftell(pb);
- if (get_buffer(pb, bin->data, length) != length) {
+ bin->pos = avio_tell(pb);
+ if (avio_read(pb, bin->data, length) != length) {
av_freep(&bin->data);
return AVERROR(EIO);
}
*/
static int ebml_read_master(MatroskaDemuxContext *matroska, uint64_t length)
{
- ByteIOContext *pb = matroska->ctx->pb;
+ AVIOContext *pb = matroska->ctx->pb;
MatroskaLevel *level;
if (matroska->num_levels >= EBML_MAX_DEPTH) {
}
level = &matroska->levels[matroska->num_levels++];
- level->start = url_ftell(pb);
+ level->start = avio_tell(pb);
level->length = length;
return 0;
static int matroska_ebmlnum_uint(MatroskaDemuxContext *matroska,
uint8_t *data, uint32_t size, uint64_t *num)
{
- ByteIOContext pb;
- init_put_byte(&pb, data, size, 0, NULL, NULL, NULL, NULL);
+ AVIOContext pb;
+ ffio_init_context(&pb, data, size, 0, NULL, NULL, NULL, NULL);
return ebml_read_num(matroska, &pb, FFMIN(size, 8), num);
}
matroska->num_levels > 0 &&
matroska->levels[matroska->num_levels-1].length == 0xffffffffffffff)
return 0; // we reached the end of an unknown size cluster
- if (!syntax[i].id && id != EBML_ID_VOID && id != EBML_ID_CRC32)
+ if (!syntax[i].id && id != EBML_ID_VOID && id != EBML_ID_CRC32) {
av_log(matroska->ctx, AV_LOG_INFO, "Unknown entry 0x%X\n", id);
+ if (matroska->ctx->error_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
+ }
return ebml_parse_elem(matroska, &syntax[i], data);
}
break;
case EBML_STR:
case EBML_UTF8:
- *(char **)((char *)data+syntax[i].data_offset) = av_strdup(syntax[i].def.s);
+ // the default may be NULL
+ if (syntax[i].def.s) {
+ uint8_t **dst = (uint8_t**)((uint8_t*)data + syntax[i].data_offset);
+ *dst = av_strdup(syntax[i].def.s);
+ if (!*dst)
+ return AVERROR(ENOMEM);
+ }
break;
}
static int ebml_parse_elem(MatroskaDemuxContext *matroska,
EbmlSyntax *syntax, void *data)
{
- ByteIOContext *pb = matroska->ctx->pb;
+ static const uint64_t max_lengths[EBML_TYPE_COUNT] = {
+ [EBML_UINT] = 8,
+ [EBML_FLOAT] = 8,
+ // max. 16 MB for strings
+ [EBML_STR] = 0x1000000,
+ [EBML_UTF8] = 0x1000000,
+ // max. 256 MB for binary data
+ [EBML_BIN] = 0x10000000,
+ // no limits for anything else
+ };
+ AVIOContext *pb = matroska->ctx->pb;
uint32_t id = syntax->id;
uint64_t length;
int res;
data = (char *)data + syntax->data_offset;
if (syntax->list_elem_size) {
EbmlList *list = data;
- list->elem = av_realloc(list->elem, (list->nb_elem+1)*syntax->list_elem_size);
+ if ((res = av_reallocp_array(&list->elem,
+ list->nb_elem + 1,
+ syntax->list_elem_size)) < 0) {
+ list->nb_elem = 0;
+ return res;
+ }
data = (char*)list->elem + list->nb_elem*syntax->list_elem_size;
memset(data, 0, syntax->list_elem_size);
list->nb_elem++;
matroska->current_id = 0;
if ((res = ebml_read_length(matroska, pb, &length)) < 0)
return res;
+ if (max_lengths[syntax->type] && length > max_lengths[syntax->type]) {
+ av_log(matroska->ctx, AV_LOG_ERROR,
+ "Invalid length 0x%"PRIx64" > 0x%"PRIx64" for syntax element %i\n",
+ length, max_lengths[syntax->type], syntax->type);
+ return AVERROR_INVALIDDATA;
+ }
}
switch (syntax->type) {
case EBML_NEST: if ((res=ebml_read_master(matroska, length)) < 0)
return res;
if (id == MATROSKA_ID_SEGMENT)
- matroska->segment_start = url_ftell(matroska->ctx->pb);
+ matroska->segment_start = avio_tell(matroska->ctx->pb);
return ebml_parse_nest(matroska, syntax->def.n, data);
case EBML_PASS: return ebml_parse_id(matroska, syntax->def.n, id, data);
case EBML_STOP: return 1;
- default: return url_fseek(pb,length,SEEK_CUR)<0 ? AVERROR(EIO) : 0;
+ default: return avio_skip(pb,length)<0 ? AVERROR(EIO) : 0;
}
if (res == AVERROR_INVALIDDATA)
av_log(matroska->ctx, AV_LOG_ERROR, "Invalid element\n");
* Not fully fool-proof, but good enough. */
for (i = 0; i < FF_ARRAY_ELEMS(matroska_doctypes); i++) {
int probelen = strlen(matroska_doctypes[i]);
+ if (total < probelen)
+ continue;
for (n = 4+size; n <= 4+size+total-probelen; n++)
if (!memcmp(p->buf+n, matroska_doctypes[i], probelen))
return AVPROBE_SCORE_MAX;
}
// probably valid EBML header but no recognized doctype
- return AVPROBE_SCORE_MAX/2;
+ return AVPROBE_SCORE_EXTENSION;
}
static MatroskaTrack *matroska_find_track_by_num(MatroskaDemuxContext *matroska,
uint8_t* data = *buf;
int isize = *buf_size;
uint8_t* pkt_data = NULL;
+ uint8_t av_unused *newpktdata;
int pkt_size = isize;
int result = 0;
int olen;
if (pkt_size >= 10000000)
- return -1;
+ return AVERROR_INVALIDDATA;
switch (encodings[0].compression.algo) {
- case MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP:
- return encodings[0].compression.settings.size;
+ case MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP: {
+ int header_size = encodings[0].compression.settings.size;
+ uint8_t *header = encodings[0].compression.settings.data;
+
+ if (!header_size)
+ return 0;
+
+ pkt_size = isize + header_size;
+ pkt_data = av_malloc(pkt_size);
+ if (!pkt_data)
+ return AVERROR(ENOMEM);
+
+ memcpy(pkt_data, header, header_size);
+ memcpy(pkt_data + header_size, data, isize);
+ break;
+ }
+#if CONFIG_LZO
case MATROSKA_TRACK_ENCODING_COMP_LZO:
do {
olen = pkt_size *= 3;
- pkt_data = av_realloc(pkt_data, pkt_size+AV_LZO_OUTPUT_PADDING);
+ newpktdata = av_realloc(pkt_data, pkt_size + AV_LZO_OUTPUT_PADDING);
+ if (!newpktdata) {
+ result = AVERROR(ENOMEM);
+ goto failed;
+ }
+ pkt_data = newpktdata;
result = av_lzo1x_decode(pkt_data, &olen, data, &isize);
} while (result==AV_LZO_OUTPUT_FULL && pkt_size<10000000);
- if (result)
+ if (result) {
+ result = AVERROR_INVALIDDATA;
goto failed;
+ }
pkt_size -= olen;
break;
+#endif
#if CONFIG_ZLIB
case MATROSKA_TRACK_ENCODING_COMP_ZLIB: {
z_stream zstream = {0};
zstream.avail_in = isize;
do {
pkt_size *= 3;
- pkt_data = av_realloc(pkt_data, pkt_size);
+ newpktdata = av_realloc(pkt_data, pkt_size);
+ if (!newpktdata) {
+ inflateEnd(&zstream);
+ goto failed;
+ }
+ pkt_data = newpktdata;
zstream.avail_out = pkt_size - zstream.total_out;
zstream.next_out = pkt_data + zstream.total_out;
result = inflate(&zstream, Z_NO_FLUSH);
} while (result==Z_OK && pkt_size<10000000);
pkt_size = zstream.total_out;
inflateEnd(&zstream);
- if (result != Z_STREAM_END)
+ if (result != Z_STREAM_END) {
+ if (result == Z_MEM_ERROR)
+ result = AVERROR(ENOMEM);
+ else
+ result = AVERROR_INVALIDDATA;
goto failed;
+ }
break;
}
#endif
bzstream.avail_in = isize;
do {
pkt_size *= 3;
- pkt_data = av_realloc(pkt_data, pkt_size);
+ newpktdata = av_realloc(pkt_data, pkt_size);
+ if (!newpktdata) {
+ BZ2_bzDecompressEnd(&bzstream);
+ goto failed;
+ }
+ pkt_data = newpktdata;
bzstream.avail_out = pkt_size - bzstream.total_out_lo32;
bzstream.next_out = pkt_data + bzstream.total_out_lo32;
result = BZ2_bzDecompress(&bzstream);
} while (result==BZ_OK && pkt_size<10000000);
pkt_size = bzstream.total_out_lo32;
BZ2_bzDecompressEnd(&bzstream);
- if (result != BZ_STREAM_END)
+ if (result != BZ_STREAM_END) {
+ if (result == BZ_MEM_ERROR)
+ result = AVERROR(ENOMEM);
+ else
+ result = AVERROR_INVALIDDATA;
goto failed;
+ }
break;
}
#endif
default:
- return -1;
+ return AVERROR_INVALIDDATA;
}
*buf = pkt_data;
return 0;
failed:
av_free(pkt_data);
- return -1;
+ return result;
}
static void matroska_fix_ass_packet(MatroskaDemuxContext *matroska,
AVPacket *pkt, uint64_t display_duration)
{
- char *line, *layer, *ptr = pkt->data, *end = ptr+pkt->size;
+ AVBufferRef *line;
+ char *layer, *ptr = pkt->data, *end = ptr+pkt->size;
for (; *ptr!=',' && ptr<end-1; ptr++);
if (*ptr == ',')
layer = ++ptr;
es = ec/ 100; ec -= 100*es;
*ptr++ = '\0';
len = 50 + end-ptr + FF_INPUT_BUFFER_PADDING_SIZE;
- if (!(line = av_malloc(len)))
+ if (!(line = av_buffer_alloc(len)))
return;
- snprintf(line,len,"Dialogue: %s,%d:%02d:%02d.%02d,%d:%02d:%02d.%02d,%s\r\n",
+ snprintf(line->data, len,"Dialogue: %s,%d:%02d:%02d.%02d,%d:%02d:%02d.%02d,%s\r\n",
layer, sh, sm, ss, sc, eh, em, es, ec, ptr);
- av_free(pkt->data);
- pkt->data = line;
- pkt->size = strlen(line);
+ av_buffer_unref(&pkt->buf);
+ pkt->buf = line;
+ pkt->data = line->data;
+ pkt->size = strlen(line->data);
}
}
-static void matroska_merge_packets(AVPacket *out, AVPacket *in)
+static int matroska_merge_packets(AVPacket *out, AVPacket *in)
{
- out->data = av_realloc(out->data, out->size+in->size);
- memcpy(out->data+out->size, in->data, in->size);
- out->size += in->size;
- av_destruct_packet(in);
+ int old_size = out->size;
+ int ret = av_grow_packet(out, in->size);
+ if (ret < 0)
+ return ret;
+
+ memcpy(out->data + old_size, in->data, in->size);
+
+ av_free_packet(in);
av_free(in);
+ return 0;
}
static void matroska_convert_tag(AVFormatContext *s, EbmlList *list,
- AVMetadata **metadata, char *prefix)
+ AVDictionary **metadata, char *prefix)
{
MatroskaTag *tags = list->elem;
char key[1024];
int i;
for (i=0; i < list->nb_elem; i++) {
- const char *lang = strcmp(tags[i].lang, "und") ? tags[i].lang : NULL;
+ const char *lang = tags[i].lang && strcmp(tags[i].lang, "und") ?
+ tags[i].lang : NULL;
if (!tags[i].name) {
av_log(s, AV_LOG_WARNING, "Skipping invalid tag with no TagName.\n");
if (prefix) snprintf(key, sizeof(key), "%s/%s", prefix, tags[i].name);
else av_strlcpy(key, tags[i].name, sizeof(key));
if (tags[i].def || !lang) {
- av_metadata_set2(metadata, key, tags[i].string, 0);
+ av_dict_set(metadata, key, tags[i].string, 0);
if (tags[i].sub.nb_elem)
matroska_convert_tag(s, &tags[i].sub, metadata, key);
}
if (lang) {
av_strlcat(key, "-", sizeof(key));
av_strlcat(key, lang, sizeof(key));
- av_metadata_set2(metadata, key, tags[i].string, 0);
+ av_dict_set(metadata, key, tags[i].string, 0);
if (tags[i].sub.nb_elem)
matroska_convert_tag(s, &tags[i].sub, metadata, key);
}
if (tags[i].target.attachuid) {
MatroskaAttachement *attachment = matroska->attachments.elem;
for (j=0; j<matroska->attachments.nb_elem; j++)
- if (attachment[j].uid == tags[i].target.attachuid)
+ if (attachment[j].uid == tags[i].target.attachuid
+ && attachment[j].stream)
matroska_convert_tag(s, &tags[i].tag,
&attachment[j].stream->metadata, NULL);
} else if (tags[i].target.chapteruid) {
MatroskaChapter *chapter = matroska->chapters.elem;
for (j=0; j<matroska->chapters.nb_elem; j++)
- if (chapter[j].uid == tags[i].target.chapteruid)
+ if (chapter[j].uid == tags[i].target.chapteruid
+ && chapter[j].chapter)
matroska_convert_tag(s, &tags[i].tag,
&chapter[j].chapter->metadata, NULL);
} else if (tags[i].target.trackuid) {
MatroskaTrack *track = matroska->tracks.elem;
for (j=0; j<matroska->tracks.nb_elem; j++)
- if (track[j].uid == tags[i].target.trackuid)
+ if (track[j].uid == tags[i].target.trackuid && track[j].stream)
matroska_convert_tag(s, &tags[i].tag,
&track[j].stream->metadata, NULL);
} else {
}
}
-static void matroska_execute_seekhead(MatroskaDemuxContext *matroska)
+static int matroska_parse_seekhead_entry(MatroskaDemuxContext *matroska, int idx)
{
EbmlList *seekhead_list = &matroska->seekhead;
MatroskaSeekhead *seekhead = seekhead_list->elem;
uint32_t level_up = matroska->level_up;
- int64_t before_pos = url_ftell(matroska->ctx->pb);
+ int64_t before_pos = avio_tell(matroska->ctx->pb);
uint32_t saved_id = matroska->current_id;
MatroskaLevel level;
+ int64_t offset;
+ int ret = 0;
+
+ if (idx >= seekhead_list->nb_elem
+ || seekhead[idx].id == MATROSKA_ID_SEEKHEAD
+ || seekhead[idx].id == MATROSKA_ID_CLUSTER)
+ return 0;
+
+ /* seek */
+ offset = seekhead[idx].pos + matroska->segment_start;
+ if (avio_seek(matroska->ctx->pb, offset, SEEK_SET) == offset) {
+ /* We don't want to lose our seekhead level, so we add
+ * a dummy. This is a crude hack. */
+ if (matroska->num_levels == EBML_MAX_DEPTH) {
+ av_log(matroska->ctx, AV_LOG_INFO,
+ "Max EBML element depth (%d) reached, "
+ "cannot parse further.\n", EBML_MAX_DEPTH);
+ ret = AVERROR_INVALIDDATA;
+ } else {
+ level.start = 0;
+ level.length = (uint64_t)-1;
+ matroska->levels[matroska->num_levels] = level;
+ matroska->num_levels++;
+ matroska->current_id = 0;
+
+ ret = ebml_parse(matroska, matroska_segment, matroska);
+
+ /* remove dummy level */
+ while (matroska->num_levels) {
+ uint64_t length = matroska->levels[--matroska->num_levels].length;
+ if (length == (uint64_t)-1)
+ break;
+ }
+ }
+ }
+ /* seek back */
+ avio_seek(matroska->ctx->pb, before_pos, SEEK_SET);
+ matroska->level_up = level_up;
+ matroska->current_id = saved_id;
+
+ return ret;
+}
+
+static void matroska_execute_seekhead(MatroskaDemuxContext *matroska)
+{
+ EbmlList *seekhead_list = &matroska->seekhead;
+ int64_t before_pos = avio_tell(matroska->ctx->pb);
int i;
// we should not do any seeking in the streaming case
- if (url_is_streamed(matroska->ctx->pb) ||
+ if (!matroska->ctx->pb->seekable ||
(matroska->ctx->flags & AVFMT_FLAG_IGNIDX))
return;
- for (i=0; i<seekhead_list->nb_elem; i++) {
- int64_t offset = seekhead[i].pos + matroska->segment_start;
-
- if (seekhead[i].pos <= before_pos
- || seekhead[i].id == MATROSKA_ID_SEEKHEAD
- || seekhead[i].id == MATROSKA_ID_CLUSTER)
+ for (i = 0; i < seekhead_list->nb_elem; i++) {
+ MatroskaSeekhead *seekhead = seekhead_list->elem;
+ if (seekhead[i].pos <= before_pos)
continue;
- /* seek */
- if (url_fseek(matroska->ctx->pb, offset, SEEK_SET) != offset)
+ // defer cues parsing until we actually need cue data.
+ if (seekhead[i].id == MATROSKA_ID_CUES) {
+ matroska->cues_parsing_deferred = 1;
continue;
+ }
- /* We don't want to lose our seekhead level, so we add
- * a dummy. This is a crude hack. */
- if (matroska->num_levels == EBML_MAX_DEPTH) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "Max EBML element depth (%d) reached, "
- "cannot parse further.\n", EBML_MAX_DEPTH);
+ if (matroska_parse_seekhead_entry(matroska, i) < 0)
break;
- }
+ }
+}
- level.start = 0;
- level.length = (uint64_t)-1;
- matroska->levels[matroska->num_levels] = level;
- matroska->num_levels++;
- matroska->current_id = 0;
+static void matroska_parse_cues(MatroskaDemuxContext *matroska) {
+ EbmlList *seekhead_list = &matroska->seekhead;
+ MatroskaSeekhead *seekhead = seekhead_list->elem;
+ EbmlList *index_list;
+ MatroskaIndex *index;
+ int index_scale = 1;
+ int i, j;
- ebml_parse(matroska, matroska_segment, matroska);
+ for (i = 0; i < seekhead_list->nb_elem; i++)
+ if (seekhead[i].id == MATROSKA_ID_CUES)
+ break;
+ assert(i <= seekhead_list->nb_elem);
- /* remove dummy level */
- while (matroska->num_levels) {
- uint64_t length = matroska->levels[--matroska->num_levels].length;
- if (length == (uint64_t)-1)
- break;
+ matroska_parse_seekhead_entry(matroska, i);
+
+ index_list = &matroska->index;
+ index = index_list->elem;
+ if (index_list->nb_elem
+ && index[0].time > 1E14/matroska->time_scale) {
+ av_log(matroska->ctx, AV_LOG_WARNING, "Working around broken index.\n");
+ index_scale = matroska->time_scale;
+ }
+ for (i = 0; i < index_list->nb_elem; i++) {
+ EbmlList *pos_list = &index[i].pos;
+ MatroskaIndexPos *pos = pos_list->elem;
+ for (j = 0; j < pos_list->nb_elem; j++) {
+ MatroskaTrack *track = matroska_find_track_by_num(matroska, pos[j].track);
+ if (track && track->stream)
+ av_add_index_entry(track->stream,
+ pos[j].pos + matroska->segment_start,
+ index[i].time/index_scale, 0, 0,
+ AVINDEX_KEYFRAME);
}
}
-
- /* seek back */
- url_fseek(matroska->ctx->pb, before_pos, SEEK_SET);
- matroska->level_up = level_up;
- matroska->current_id = saved_id;
}
static int matroska_aac_profile(char *codec_id)
{
int sri;
- for (sri=0; sri<FF_ARRAY_ELEMS(ff_mpeg4audio_sample_rates); sri++)
- if (ff_mpeg4audio_sample_rates[sri] == samplerate)
+ for (sri=0; sri<FF_ARRAY_ELEMS(avpriv_mpeg4audio_sample_rates); sri++)
+ if (avpriv_mpeg4audio_sample_rates[sri] == samplerate)
break;
return sri;
}
-static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int matroska_read_header(AVFormatContext *s)
{
MatroskaDemuxContext *matroska = s->priv_data;
EbmlList *attachements_list = &matroska->attachments;
EbmlList *chapters_list = &matroska->chapters;
MatroskaChapter *chapters;
MatroskaTrack *tracks;
- EbmlList *index_list;
- MatroskaIndex *index;
- int index_scale = 1;
uint64_t max_start = 0;
+ int64_t pos;
Ebml ebml = { 0 };
AVStream *st;
int i, j, res;
break;
if (i >= FF_ARRAY_ELEMS(matroska_doctypes)) {
av_log(s, AV_LOG_WARNING, "Unknown EBML doctype '%s'\n", ebml.doctype);
+ if (matroska->ctx->error_recognition & AV_EF_EXPLODE) {
+ ebml_free(ebml_syntax, &ebml);
+ return AVERROR_INVALIDDATA;
+ }
}
ebml_free(ebml_syntax, &ebml);
/* The next thing is a segment. */
- if ((res = ebml_parse(matroska, matroska_segments, matroska)) < 0)
- return res;
+ pos = avio_tell(matroska->ctx->pb);
+ res = ebml_parse(matroska, matroska_segments, matroska);
+ // try resyncing until we find a EBML_STOP type element.
+ while (res != 1) {
+ res = matroska_resync(matroska, pos);
+ if (res < 0)
+ return res;
+ pos = avio_tell(matroska->ctx->pb);
+ res = ebml_parse(matroska, matroska_segment, matroska);
+ }
matroska_execute_seekhead(matroska);
if (!matroska->time_scale)
if (matroska->duration)
matroska->ctx->duration = matroska->duration * matroska->time_scale
* 1000 / AV_TIME_BASE;
- av_metadata_set2(&s->metadata, "title", matroska->title, 0);
+ av_dict_set(&s->metadata, "title", matroska->title, 0);
tracks = matroska->tracks.elem;
for (i=0; i < matroska->tracks.nb_elem; i++) {
MatroskaTrack *track = &tracks[i];
- enum CodecID codec_id = CODEC_ID_NONE;
+ enum AVCodecID codec_id = AV_CODEC_ID_NONE;
EbmlList *encodings_list = &tracks->encodings;
MatroskaTrackEncoding *encodings = encodings_list->elem;
uint8_t *extradata = NULL;
int extradata_size = 0;
int extradata_offset = 0;
- ByteIOContext b;
+ AVIOContext b;
/* Apply some sanity checks. */
if (track->type != MATROSKA_TRACK_TYPE_VIDEO &&
continue;
if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
- if (!track->default_duration)
+ if (!track->default_duration && track->video.frame_rate > 0)
track->default_duration = 1000000000/track->video.frame_rate;
if (!track->video.display_width)
track->video.display_width = track->video.pixel_width;
}
if (encodings_list->nb_elem > 1) {
av_log(matroska->ctx, AV_LOG_ERROR,
- "Multiple combined encodings no supported");
+ "Multiple combined encodings not supported");
} else if (encodings_list->nb_elem == 1) {
if (encodings[0].type ||
- (encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP &&
+ (
#if CONFIG_ZLIB
encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_ZLIB &&
#endif
#if CONFIG_BZLIB
encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_BZLIB &&
#endif
- encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_LZO)) {
+#if CONFIG_LZO
+ encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_LZO &&
+#endif
+ encodings[0].compression.algo != MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP)) {
encodings[0].scope = 0;
av_log(matroska->ctx, AV_LOG_ERROR,
"Unsupported encoding type");
} else if (track->codec_priv.size && encodings[0].scope&2) {
uint8_t *codec_priv = track->codec_priv.data;
- int offset = matroska_decode_buffer(&track->codec_priv.data,
- &track->codec_priv.size,
- track);
- if (offset < 0) {
+ int ret = matroska_decode_buffer(&track->codec_priv.data,
+ &track->codec_priv.size,
+ track);
+ if (ret < 0) {
track->codec_priv.data = NULL;
track->codec_priv.size = 0;
av_log(matroska->ctx, AV_LOG_ERROR,
"Failed to decode codec private data\n");
- } else if (offset > 0) {
- track->codec_priv.data = av_malloc(track->codec_priv.size + offset);
- memcpy(track->codec_priv.data,
- encodings[0].compression.settings.data, offset);
- memcpy(track->codec_priv.data+offset, codec_priv,
- track->codec_priv.size);
- track->codec_priv.size += offset;
}
+
if (codec_priv != track->codec_priv.data)
av_free(codec_priv);
}
}
- for(j=0; ff_mkv_codec_tags[j].id != CODEC_ID_NONE; j++){
+ for(j=0; ff_mkv_codec_tags[j].id != AV_CODEC_ID_NONE; j++){
if(!strncmp(ff_mkv_codec_tags[j].str, track->codec_id,
strlen(ff_mkv_codec_tags[j].str))){
codec_id= ff_mkv_codec_tags[j].id;
}
}
- st = track->stream = av_new_stream(s, 0);
+ st = track->stream = avformat_new_stream(s, NULL);
if (st == NULL)
return AVERROR(ENOMEM);
} else if (!strcmp(track->codec_id, "A_MS/ACM")
&& track->codec_priv.size >= 14
&& track->codec_priv.data != NULL) {
- init_put_byte(&b, track->codec_priv.data, track->codec_priv.size,
- URL_RDONLY, NULL, NULL, NULL, NULL);
- ff_get_wav_header(&b, st->codec, track->codec_priv.size);
+ int ret;
+ ffio_init_context(&b, track->codec_priv.data, track->codec_priv.size,
+ 0, NULL, NULL, NULL, NULL);
+ ret = ff_get_wav_header(&b, st->codec, track->codec_priv.size);
+ if (ret < 0)
+ return ret;
codec_id = st->codec->codec_id;
extradata_offset = FFMIN(track->codec_priv.size, 18);
} else if (!strcmp(track->codec_id, "V_QUICKTIME")
&& (track->codec_priv.size >= 86)
&& (track->codec_priv.data != NULL)) {
track->video.fourcc = AV_RL32(track->codec_priv.data);
- codec_id=ff_codec_get_id(codec_movvideo_tags, track->video.fourcc);
- } else if (codec_id == CODEC_ID_PCM_S16BE) {
+ codec_id=ff_codec_get_id(ff_codec_movvideo_tags, track->video.fourcc);
+ } else if (codec_id == AV_CODEC_ID_PCM_S16BE) {
switch (track->audio.bitdepth) {
- case 8: codec_id = CODEC_ID_PCM_U8; break;
- case 24: codec_id = CODEC_ID_PCM_S24BE; break;
- case 32: codec_id = CODEC_ID_PCM_S32BE; break;
+ case 8: codec_id = AV_CODEC_ID_PCM_U8; break;
+ case 24: codec_id = AV_CODEC_ID_PCM_S24BE; break;
+ case 32: codec_id = AV_CODEC_ID_PCM_S32BE; break;
}
- } else if (codec_id == CODEC_ID_PCM_S16LE) {
+ } else if (codec_id == AV_CODEC_ID_PCM_S16LE) {
switch (track->audio.bitdepth) {
- case 8: codec_id = CODEC_ID_PCM_U8; break;
- case 24: codec_id = CODEC_ID_PCM_S24LE; break;
- case 32: codec_id = CODEC_ID_PCM_S32LE; break;
+ case 8: codec_id = AV_CODEC_ID_PCM_U8; break;
+ case 24: codec_id = AV_CODEC_ID_PCM_S24LE; break;
+ case 32: codec_id = AV_CODEC_ID_PCM_S32LE; break;
}
- } else if (codec_id==CODEC_ID_PCM_F32LE && track->audio.bitdepth==64) {
- codec_id = CODEC_ID_PCM_F64LE;
- } else if (codec_id == CODEC_ID_AAC && !track->codec_priv.size) {
+ } else if (codec_id==AV_CODEC_ID_PCM_F32LE && track->audio.bitdepth==64) {
+ codec_id = AV_CODEC_ID_PCM_F64LE;
+ } else if (codec_id == AV_CODEC_ID_AAC && !track->codec_priv.size) {
int profile = matroska_aac_profile(track->codec_id);
int sri = matroska_aac_sri(track->audio.samplerate);
- extradata = av_malloc(5);
+ extradata = av_mallocz(5 + FF_INPUT_BUFFER_PADDING_SIZE);
if (extradata == NULL)
return AVERROR(ENOMEM);
extradata[0] = (profile << 3) | ((sri&0x0E) >> 1);
extradata_size = 5;
} else
extradata_size = 2;
- } else if (codec_id == CODEC_ID_TTA) {
+ } else if (codec_id == AV_CODEC_ID_ALAC && track->codec_priv.size) {
+ /* Only ALAC's magic cookie is stored in Matroska's track headers.
+ Create the "atom size", "tag", and "tag version" fields the
+ decoder expects manually. */
+ extradata_size = 12 + track->codec_priv.size;
+ extradata = av_mallocz(extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (extradata == NULL)
+ return AVERROR(ENOMEM);
+ AV_WB32(extradata, extradata_size);
+ memcpy(&extradata[4], "alac", 4);
+ AV_WB32(&extradata[8], 0);
+ memcpy(&extradata[12], track->codec_priv.data,
+ track->codec_priv.size);
+ } else if (codec_id == AV_CODEC_ID_TTA) {
extradata_size = 30;
extradata = av_mallocz(extradata_size);
if (extradata == NULL)
return AVERROR(ENOMEM);
- init_put_byte(&b, extradata, extradata_size, 1,
+ ffio_init_context(&b, extradata, extradata_size, 1,
NULL, NULL, NULL, NULL);
- put_buffer(&b, "TTA1", 4);
- put_le16(&b, 1);
- put_le16(&b, track->audio.channels);
- put_le16(&b, track->audio.bitdepth);
- put_le32(&b, track->audio.out_samplerate);
- put_le32(&b, matroska->ctx->duration * track->audio.out_samplerate);
- } else if (codec_id == CODEC_ID_RV10 || codec_id == CODEC_ID_RV20 ||
- codec_id == CODEC_ID_RV30 || codec_id == CODEC_ID_RV40) {
+ avio_write(&b, "TTA1", 4);
+ avio_wl16(&b, 1);
+ avio_wl16(&b, track->audio.channels);
+ avio_wl16(&b, track->audio.bitdepth);
+ avio_wl32(&b, track->audio.out_samplerate);
+ avio_wl32(&b, matroska->ctx->duration * track->audio.out_samplerate);
+ } else if (codec_id == AV_CODEC_ID_RV10 || codec_id == AV_CODEC_ID_RV20 ||
+ codec_id == AV_CODEC_ID_RV30 || codec_id == AV_CODEC_ID_RV40) {
extradata_offset = 26;
- } else if (codec_id == CODEC_ID_RA_144) {
+ } else if (codec_id == AV_CODEC_ID_RA_144) {
track->audio.out_samplerate = 8000;
track->audio.channels = 1;
- } else if (codec_id == CODEC_ID_RA_288 || codec_id == CODEC_ID_COOK ||
- codec_id == CODEC_ID_ATRAC3 || codec_id == CODEC_ID_SIPR) {
+ } else if (codec_id == AV_CODEC_ID_RA_288 || codec_id == AV_CODEC_ID_COOK ||
+ codec_id == AV_CODEC_ID_ATRAC3 || codec_id == AV_CODEC_ID_SIPR) {
int flavor;
- init_put_byte(&b, track->codec_priv.data,track->codec_priv.size,
+ ffio_init_context(&b, track->codec_priv.data,track->codec_priv.size,
0, NULL, NULL, NULL, NULL);
- url_fskip(&b, 22);
- flavor = get_be16(&b);
- track->audio.coded_framesize = get_be32(&b);
- url_fskip(&b, 12);
- track->audio.sub_packet_h = get_be16(&b);
- track->audio.frame_size = get_be16(&b);
- track->audio.sub_packet_size = get_be16(&b);
+ avio_skip(&b, 22);
+ flavor = avio_rb16(&b);
+ track->audio.coded_framesize = avio_rb32(&b);
+ avio_skip(&b, 12);
+ track->audio.sub_packet_h = avio_rb16(&b);
+ track->audio.frame_size = avio_rb16(&b);
+ track->audio.sub_packet_size = avio_rb16(&b);
+ if (flavor <= 0 || track->audio.coded_framesize <= 0 ||
+ track->audio.sub_packet_h <= 0 || track->audio.frame_size <= 0 ||
+ track->audio.sub_packet_size <= 0)
+ return AVERROR_INVALIDDATA;
track->audio.buf = av_malloc(track->audio.frame_size * track->audio.sub_packet_h);
- if (codec_id == CODEC_ID_RA_288) {
+ if (codec_id == AV_CODEC_ID_RA_288) {
st->codec->block_align = track->audio.coded_framesize;
track->codec_priv.size = 0;
} else {
- if (codec_id == CODEC_ID_SIPR && flavor < 4) {
+ if (codec_id == AV_CODEC_ID_SIPR && flavor < 4) {
const int sipr_bit_rate[4] = { 6504, 8496, 5000, 16000 };
track->audio.sub_packet_size = ff_sipr_subpk_size[flavor];
st->codec->bit_rate = sipr_bit_rate[flavor];
}
track->codec_priv.size -= extradata_offset;
- if (codec_id == CODEC_ID_NONE)
+ if (codec_id == AV_CODEC_ID_NONE)
av_log(matroska->ctx, AV_LOG_INFO,
- "Unknown/unsupported CodecID %s.\n", track->codec_id);
+ "Unknown/unsupported AVCodecID %s.\n", track->codec_id);
if (track->time_scale < 0.01)
track->time_scale = 1.0;
- av_set_pts_info(st, 64, matroska->time_scale*track->time_scale, 1000*1000*1000); /* 64 bit pts in ns */
+ avpriv_set_pts_info(st, 64, matroska->time_scale*track->time_scale, 1000*1000*1000); /* 64 bit pts in ns */
st->codec->codec_id = codec_id;
st->start_time = 0;
if (strcmp(track->language, "und"))
- av_metadata_set2(&st->metadata, "language", track->language, 0);
- av_metadata_set2(&st->metadata, "title", track->name, 0);
+ av_dict_set(&st->metadata, "language", track->language, 0);
+ av_dict_set(&st->metadata, "title", track->name, 0);
if (track->flag_default)
st->disposition |= AV_DISPOSITION_DEFAULT;
if (track->flag_forced)
st->disposition |= AV_DISPOSITION_FORCED;
- if (track->default_duration)
- av_reduce(&st->codec->time_base.num, &st->codec->time_base.den,
- track->default_duration, 1000000000, 30000);
-
if (!st->codec->extradata) {
if(extradata){
st->codec->extradata = extradata;
st->codec->height * track->video.display_width,
st->codec-> width * track->video.display_height,
255);
- if (st->codec->codec_id != CODEC_ID_H264)
- st->need_parsing = AVSTREAM_PARSE_HEADERS;
- if (track->default_duration)
- st->avg_frame_rate = av_d2q(1000000000.0/track->default_duration, INT_MAX);
+ if (st->codec->codec_id != AV_CODEC_ID_H264 &&
+ st->codec->codec_id != AV_CODEC_ID_HEVC)
+ st->need_parsing = AVSTREAM_PARSE_HEADERS;
+ if (track->default_duration) {
+ av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
+ 1000000000, track->default_duration, 30000);
+ }
} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->sample_rate = track->audio.out_samplerate;
st->codec->channels = track->audio.channels;
- if (st->codec->codec_id != CODEC_ID_AAC)
+ if (st->codec->codec_id != AV_CODEC_ID_AAC)
st->need_parsing = AVSTREAM_PARSE_HEADERS;
} else if (track->type == MATROSKA_TRACK_TYPE_SUBTITLE) {
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
+ if (st->codec->codec_id == AV_CODEC_ID_SSA)
+ matroska->contains_ssa = 1;
}
}
attachements[j].bin.data && attachements[j].bin.size > 0)) {
av_log(matroska->ctx, AV_LOG_ERROR, "incomplete attachment\n");
} else {
- AVStream *st = av_new_stream(s, 0);
+ AVStream *st = avformat_new_stream(s, NULL);
if (st == NULL)
break;
- av_metadata_set2(&st->metadata, "filename",attachements[j].filename, 0);
- st->codec->codec_id = CODEC_ID_NONE;
+ av_dict_set(&st->metadata, "filename",attachements[j].filename, 0);
+ av_dict_set(&st->metadata, "mimetype", attachements[j].mime, 0);
+ st->codec->codec_id = AV_CODEC_ID_NONE;
st->codec->codec_type = AVMEDIA_TYPE_ATTACHMENT;
st->codec->extradata = av_malloc(attachements[j].bin.size);
if(st->codec->extradata == NULL)
st->codec->extradata_size = attachements[j].bin.size;
memcpy(st->codec->extradata, attachements[j].bin.data, attachements[j].bin.size);
- for (i=0; ff_mkv_mime_tags[i].id != CODEC_ID_NONE; i++) {
+ for (i=0; ff_mkv_mime_tags[i].id != AV_CODEC_ID_NONE; i++) {
if (!strncmp(ff_mkv_mime_tags[i].str, attachements[j].mime,
strlen(ff_mkv_mime_tags[i].str))) {
st->codec->codec_id = ff_mkv_mime_tags[i].id;
if (chapters[i].start != AV_NOPTS_VALUE && chapters[i].uid
&& (max_start==0 || chapters[i].start > max_start)) {
chapters[i].chapter =
- ff_new_chapter(s, chapters[i].uid, (AVRational){1, 1000000000},
+ avpriv_new_chapter(s, chapters[i].uid, (AVRational){1, 1000000000},
chapters[i].start, chapters[i].end,
chapters[i].title);
- av_metadata_set2(&chapters[i].chapter->metadata,
+ av_dict_set(&chapters[i].chapter->metadata,
"title", chapters[i].title, 0);
max_start = chapters[i].start;
}
- index_list = &matroska->index;
- index = index_list->elem;
- if (index_list->nb_elem
- && index[0].time > 100000000000000/matroska->time_scale) {
- av_log(matroska->ctx, AV_LOG_WARNING, "Working around broken index.\n");
- index_scale = matroska->time_scale;
- }
- for (i=0; i<index_list->nb_elem; i++) {
- EbmlList *pos_list = &index[i].pos;
- MatroskaIndexPos *pos = pos_list->elem;
- for (j=0; j<pos_list->nb_elem; j++) {
- MatroskaTrack *track = matroska_find_track_by_num(matroska,
- pos[j].track);
- if (track && track->stream)
- av_add_index_entry(track->stream,
- pos[j].pos + matroska->segment_start,
- index[i].time/index_scale, 0, 0,
- AVINDEX_KEYFRAME);
- }
- }
-
matroska_convert_tags(s);
return 0;
memcpy(pkt, matroska->packets[0], sizeof(AVPacket));
av_free(matroska->packets[0]);
if (matroska->num_packets > 1) {
+ void *newpackets;
memmove(&matroska->packets[0], &matroska->packets[1],
(matroska->num_packets - 1) * sizeof(AVPacket *));
- matroska->packets =
- av_realloc(matroska->packets, (matroska->num_packets - 1) *
- sizeof(AVPacket *));
+ newpackets = av_realloc(matroska->packets,
+ (matroska->num_packets - 1) * sizeof(AVPacket *));
+ if (newpackets)
+ matroska->packets = newpackets;
} else {
av_freep(&matroska->packets);
+ matroska->prev_pkt = NULL;
}
matroska->num_packets--;
return 0;
*/
static void matroska_clear_queue(MatroskaDemuxContext *matroska)
{
+ matroska->prev_pkt = NULL;
if (matroska->packets) {
int n;
for (n = 0; n < matroska->num_packets; n++) {
}
}
+static int matroska_parse_laces(MatroskaDemuxContext *matroska, uint8_t **buf,
+ int* buf_size, int type,
+ uint32_t **lace_buf, int *laces)
+{
+ int res = 0, n, size = *buf_size;
+ uint8_t *data = *buf;
+ uint32_t *lace_size;
+
+ if (!type) {
+ *laces = 1;
+ *lace_buf = av_mallocz(sizeof(int));
+ if (!*lace_buf)
+ return AVERROR(ENOMEM);
+
+ *lace_buf[0] = size;
+ return 0;
+ }
+
+ assert(size > 0);
+ *laces = *data + 1;
+ data += 1;
+ size -= 1;
+ lace_size = av_mallocz(*laces * sizeof(int));
+ if (!lace_size)
+ return AVERROR(ENOMEM);
+
+ switch (type) {
+ case 0x1: /* Xiph lacing */ {
+ uint8_t temp;
+ uint32_t total = 0;
+ for (n = 0; res == 0 && n < *laces - 1; n++) {
+ while (1) {
+ if (size == 0) {
+ res = AVERROR_EOF;
+ break;
+ }
+ temp = *data;
+ lace_size[n] += temp;
+ data += 1;
+ size -= 1;
+ if (temp != 0xff)
+ break;
+ }
+ total += lace_size[n];
+ }
+ if (size <= total) {
+ res = AVERROR_INVALIDDATA;
+ break;
+ }
+
+ lace_size[n] = size - total;
+ break;
+ }
+
+ case 0x2: /* fixed-size lacing */
+ if (size % (*laces)) {
+ res = AVERROR_INVALIDDATA;
+ break;
+ }
+ for (n = 0; n < *laces; n++)
+ lace_size[n] = size / *laces;
+ break;
+
+ case 0x3: /* EBML lacing */ {
+ uint64_t num;
+ uint64_t total;
+ n = matroska_ebmlnum_uint(matroska, data, size, &num);
+ if (n < 0) {
+ av_log(matroska->ctx, AV_LOG_INFO,
+ "EBML block data error\n");
+ res = n;
+ break;
+ }
+ data += n;
+ size -= n;
+ total = lace_size[0] = num;
+ for (n = 1; res == 0 && n < *laces - 1; n++) {
+ int64_t snum;
+ int r;
+ r = matroska_ebmlnum_sint(matroska, data, size, &snum);
+ if (r < 0) {
+ av_log(matroska->ctx, AV_LOG_INFO,
+ "EBML block data error\n");
+ res = r;
+ break;
+ }
+ data += r;
+ size -= r;
+ lace_size[n] = lace_size[n - 1] + snum;
+ total += lace_size[n];
+ }
+ if (size <= total) {
+ res = AVERROR_INVALIDDATA;
+ break;
+ }
+ lace_size[*laces - 1] = size - total;
+ break;
+ }
+ }
+
+ *buf = data;
+ *lace_buf = lace_size;
+ *buf_size = size;
+
+ return res;
+}
+
+static int matroska_parse_rm_audio(MatroskaDemuxContext *matroska,
+ MatroskaTrack *track,
+ AVStream *st,
+ uint8_t *data, int size,
+ uint64_t timecode, uint64_t duration,
+ int64_t pos)
+{
+ int a = st->codec->block_align;
+ int sps = track->audio.sub_packet_size;
+ int cfs = track->audio.coded_framesize;
+ int h = track->audio.sub_packet_h;
+ int y = track->audio.sub_packet_cnt;
+ int w = track->audio.frame_size;
+ int x;
+
+ if (!track->audio.pkt_cnt) {
+ if (track->audio.sub_packet_cnt == 0)
+ track->audio.buf_timecode = timecode;
+ if (st->codec->codec_id == AV_CODEC_ID_RA_288) {
+ if (size < cfs * h / 2) {
+ av_log(matroska->ctx, AV_LOG_ERROR,
+ "Corrupt int4 RM-style audio packet size\n");
+ return AVERROR_INVALIDDATA;
+ }
+ for (x=0; x<h/2; x++)
+ memcpy(track->audio.buf+x*2*w+y*cfs,
+ data+x*cfs, cfs);
+ } else if (st->codec->codec_id == AV_CODEC_ID_SIPR) {
+ if (size < w) {
+ av_log(matroska->ctx, AV_LOG_ERROR,
+ "Corrupt sipr RM-style audio packet size\n");
+ return AVERROR_INVALIDDATA;
+ }
+ memcpy(track->audio.buf + y*w, data, w);
+ } else {
+ if (size < sps * w / sps) {
+ av_log(matroska->ctx, AV_LOG_ERROR,
+ "Corrupt generic RM-style audio packet size\n");
+ return AVERROR_INVALIDDATA;
+ }
+ for (x=0; x<w/sps; x++)
+ memcpy(track->audio.buf+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), data+x*sps, sps);
+ }
+
+ if (++track->audio.sub_packet_cnt >= h) {
+ if (st->codec->codec_id == AV_CODEC_ID_SIPR)
+ ff_rm_reorder_sipr_data(track->audio.buf, h, w);
+ track->audio.sub_packet_cnt = 0;
+ track->audio.pkt_cnt = h*w / a;
+ }
+ }
+
+ while (track->audio.pkt_cnt) {
+ AVPacket *pkt = av_mallocz(sizeof(AVPacket));
+ av_new_packet(pkt, a);
+ memcpy(pkt->data, track->audio.buf
+ + a * (h*w / a - track->audio.pkt_cnt--), a);
+ pkt->pts = track->audio.buf_timecode;
+ track->audio.buf_timecode = AV_NOPTS_VALUE;
+ pkt->pos = pos;
+ pkt->stream_index = st->index;
+ dynarray_add(&matroska->packets,&matroska->num_packets,pkt);
+ }
+
+ return 0;
+}
+
+/* reconstruct full wavpack blocks from mangled matroska ones */
+static int matroska_parse_wavpack(MatroskaTrack *track, uint8_t *src,
+ uint8_t **pdst, int *size)
+{
+ uint8_t *dst = NULL;
+ int dstlen = 0;
+ int srclen = *size;
+ uint32_t samples;
+ uint16_t ver;
+ int ret, offset = 0;
+
+ if (srclen < 12 || track->stream->codec->extradata_size < 2)
+ return AVERROR_INVALIDDATA;
+
+ ver = AV_RL16(track->stream->codec->extradata);
+
+ samples = AV_RL32(src);
+ src += 4;
+ srclen -= 4;
+
+ while (srclen >= 8) {
+ int multiblock;
+ uint32_t blocksize;
+ uint8_t *tmp;
+
+ uint32_t flags = AV_RL32(src);
+ uint32_t crc = AV_RL32(src + 4);
+ src += 8;
+ srclen -= 8;
+
+ multiblock = (flags & 0x1800) != 0x1800;
+ if (multiblock) {
+ if (srclen < 4) {
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+ blocksize = AV_RL32(src);
+ src += 4;
+ srclen -= 4;
+ } else
+ blocksize = srclen;
+
+ if (blocksize > srclen) {
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ tmp = av_realloc(dst, dstlen + blocksize + 32);
+ if (!tmp) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ dst = tmp;
+ dstlen += blocksize + 32;
+
+ AV_WL32(dst + offset, MKTAG('w', 'v', 'p', 'k')); // tag
+ AV_WL32(dst + offset + 4, blocksize + 24); // blocksize - 8
+ AV_WL16(dst + offset + 8, ver); // version
+ AV_WL16(dst + offset + 10, 0); // track/index_no
+ AV_WL32(dst + offset + 12, 0); // total samples
+ AV_WL32(dst + offset + 16, 0); // block index
+ AV_WL32(dst + offset + 20, samples); // number of samples
+ AV_WL32(dst + offset + 24, flags); // flags
+ AV_WL32(dst + offset + 28, crc); // crc
+ memcpy (dst + offset + 32, src, blocksize); // block data
+
+ src += blocksize;
+ srclen -= blocksize;
+ offset += blocksize + 32;
+ }
+
+ *pdst = dst;
+ *size = dstlen;
+
+ return 0;
+
+fail:
+ av_freep(&dst);
+ return ret;
+}
+
+static int matroska_parse_frame(MatroskaDemuxContext *matroska,
+ MatroskaTrack *track,
+ AVStream *st,
+ uint8_t *data, int pkt_size,
+ uint64_t timecode, uint64_t duration,
+ int64_t pos, int is_keyframe)
+{
+ MatroskaTrackEncoding *encodings = track->encodings.elem;
+ uint8_t *pkt_data = data;
+ int offset = 0, res;
+ AVPacket *pkt;
+
+ if (encodings && encodings->scope & 1) {
+ res = matroska_decode_buffer(&pkt_data, &pkt_size, track);
+ if (res < 0)
+ return res;
+ }
+
+ if (st->codec->codec_id == AV_CODEC_ID_WAVPACK) {
+ uint8_t *wv_data;
+ res = matroska_parse_wavpack(track, pkt_data, &wv_data, &pkt_size);
+ if (res < 0) {
+ av_log(matroska->ctx, AV_LOG_ERROR, "Error parsing a wavpack block.\n");
+ goto fail;
+ }
+ if (pkt_data != data)
+ av_freep(&pkt_data);
+ pkt_data = wv_data;
+ }
+
+ if (st->codec->codec_id == AV_CODEC_ID_PRORES)
+ offset = 8;
+
+ pkt = av_mallocz(sizeof(AVPacket));
+ /* XXX: prevent data copy... */
+ if (av_new_packet(pkt, pkt_size + offset) < 0) {
+ av_free(pkt);
+ return AVERROR(ENOMEM);
+ }
+
+ if (st->codec->codec_id == AV_CODEC_ID_PRORES) {
+ uint8_t *buf = pkt->data;
+ bytestream_put_be32(&buf, pkt_size);
+ bytestream_put_be32(&buf, MKBETAG('i', 'c', 'p', 'f'));
+ }
+
+ memcpy(pkt->data + offset, pkt_data, pkt_size);
+
+ if (pkt_data != data)
+ av_free(pkt_data);
+
+ pkt->flags = is_keyframe;
+ pkt->stream_index = st->index;
+
+ if (track->ms_compat)
+ pkt->dts = timecode;
+ else
+ pkt->pts = timecode;
+ pkt->pos = pos;
+ if (st->codec->codec_id == AV_CODEC_ID_TEXT)
+ pkt->convergence_duration = duration;
+ else if (track->type != MATROSKA_TRACK_TYPE_SUBTITLE)
+ pkt->duration = duration;
+
+ if (st->codec->codec_id == AV_CODEC_ID_SSA)
+ matroska_fix_ass_packet(matroska, pkt, duration);
+
+ if (matroska->prev_pkt &&
+ timecode != AV_NOPTS_VALUE &&
+ matroska->prev_pkt->pts == timecode &&
+ matroska->prev_pkt->stream_index == st->index &&
+ st->codec->codec_id == AV_CODEC_ID_SSA)
+ matroska_merge_packets(matroska->prev_pkt, pkt);
+ else {
+ dynarray_add(&matroska->packets,&matroska->num_packets,pkt);
+ matroska->prev_pkt = pkt;
+ }
+
+ return 0;
+fail:
+ if (pkt_data != data)
+ av_freep(&pkt_data);
+ return res;
+}
+
static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
int size, int64_t pos, uint64_t cluster_time,
- uint64_t duration, int is_keyframe,
+ uint64_t block_duration, int is_keyframe,
int64_t cluster_pos)
{
uint64_t timecode = AV_NOPTS_VALUE;
MatroskaTrack *track;
int res = 0;
AVStream *st;
- AVPacket *pkt;
int16_t block_time;
uint32_t *lace_size = NULL;
int n, flags, laces = 0;
- uint64_t num;
+ uint64_t num, duration;
if ((n = matroska_ebmlnum_uint(matroska, data, size, &num)) < 0) {
av_log(matroska->ctx, AV_LOG_ERROR, "EBML block data error\n");
- return res;
+ return n;
}
data += n;
size -= n;
track = matroska_find_track_by_num(matroska, num);
- if (size <= 3 || !track || !track->stream) {
+ if (!track || !track->stream) {
av_log(matroska->ctx, AV_LOG_INFO,
"Invalid stream %"PRIu64" or size %u\n", num, size);
- return res;
- }
+ return AVERROR_INVALIDDATA;
+ } else if (size <= 3)
+ return 0;
st = track->stream;
if (st->discard >= AVDISCARD_ALL)
return res;
- if (duration == AV_NOPTS_VALUE)
- duration = track->default_duration / matroska->time_scale;
block_time = AV_RB16(data);
data += 2;
is_keyframe = 0; /* overlapping subtitles are not key frame */
if (is_keyframe)
av_add_index_entry(st, cluster_pos, timecode, 0,0,AVINDEX_KEYFRAME);
- track->end_timecode = FFMAX(track->end_timecode, timecode+duration);
}
if (matroska->skip_to_keyframe && track->type != MATROSKA_TRACK_TYPE_SUBTITLE) {
matroska->skip_to_keyframe = 0;
}
- switch ((flags & 0x06) >> 1) {
- case 0x0: /* no lacing */
- laces = 1;
- lace_size = av_mallocz(sizeof(int));
- lace_size[0] = size;
- break;
-
- case 0x1: /* Xiph lacing */
- case 0x2: /* fixed-size lacing */
- case 0x3: /* EBML lacing */
- assert(size>0); // size <=3 is checked before size-=3 above
- laces = (*data) + 1;
- data += 1;
- size -= 1;
- lace_size = av_mallocz(laces * sizeof(int));
-
- switch ((flags & 0x06) >> 1) {
- case 0x1: /* Xiph lacing */ {
- uint8_t temp;
- uint32_t total = 0;
- for (n = 0; res == 0 && n < laces - 1; n++) {
- while (1) {
- if (size == 0) {
- res = -1;
- break;
- }
- temp = *data;
- lace_size[n] += temp;
- data += 1;
- size -= 1;
- if (temp != 0xff)
- break;
- }
- total += lace_size[n];
- }
- lace_size[n] = size - total;
- break;
- }
+ res = matroska_parse_laces(matroska, &data, &size, (flags & 0x06) >> 1,
+ &lace_size, &laces);
- case 0x2: /* fixed-size lacing */
- for (n = 0; n < laces; n++)
- lace_size[n] = size / laces;
- break;
+ if (res)
+ goto end;
- case 0x3: /* EBML lacing */ {
- uint32_t total;
- n = matroska_ebmlnum_uint(matroska, data, size, &num);
- if (n < 0) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "EBML block data error\n");
- break;
- }
- data += n;
- size -= n;
- total = lace_size[0] = num;
- for (n = 1; res == 0 && n < laces - 1; n++) {
- int64_t snum;
- int r;
- r = matroska_ebmlnum_sint(matroska, data, size, &snum);
- if (r < 0) {
- av_log(matroska->ctx, AV_LOG_INFO,
- "EBML block data error\n");
- break;
- }
- data += r;
- size -= r;
- lace_size[n] = lace_size[n - 1] + snum;
- total += lace_size[n];
- }
- lace_size[n] = size - total;
- break;
- }
- }
- break;
+ if (block_duration != AV_NOPTS_VALUE) {
+ duration = block_duration / laces;
+ if (block_duration != duration * laces) {
+ av_log(matroska->ctx, AV_LOG_WARNING,
+ "Incorrect block_duration, possibly corrupted container");
+ }
+ } else {
+ duration = track->default_duration / matroska->time_scale;
+ block_duration = duration * laces;
}
- if (res == 0) {
- for (n = 0; n < laces; n++) {
- if ((st->codec->codec_id == CODEC_ID_RA_288 ||
- st->codec->codec_id == CODEC_ID_COOK ||
- st->codec->codec_id == CODEC_ID_SIPR ||
- st->codec->codec_id == CODEC_ID_ATRAC3) &&
- st->codec->block_align && track->audio.sub_packet_size) {
- int a = st->codec->block_align;
- int sps = track->audio.sub_packet_size;
- int cfs = track->audio.coded_framesize;
- int h = track->audio.sub_packet_h;
- int y = track->audio.sub_packet_cnt;
- int w = track->audio.frame_size;
- int x;
-
- if (!track->audio.pkt_cnt) {
- if (st->codec->codec_id == CODEC_ID_RA_288)
- for (x=0; x<h/2; x++)
- memcpy(track->audio.buf+x*2*w+y*cfs,
- data+x*cfs, cfs);
- else if (st->codec->codec_id == CODEC_ID_SIPR)
- memcpy(track->audio.buf + y*w, data, w);
- else
- for (x=0; x<w/sps; x++)
- memcpy(track->audio.buf+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), data+x*sps, sps);
-
- if (++track->audio.sub_packet_cnt >= h) {
- if (st->codec->codec_id == CODEC_ID_SIPR)
- ff_rm_reorder_sipr_data(track->audio.buf, h, w);
- track->audio.sub_packet_cnt = 0;
- track->audio.pkt_cnt = h*w / a;
- }
- }
- while (track->audio.pkt_cnt) {
- pkt = av_mallocz(sizeof(AVPacket));
- av_new_packet(pkt, a);
- memcpy(pkt->data, track->audio.buf
- + a * (h*w / a - track->audio.pkt_cnt--), a);
- pkt->pos = pos;
- pkt->stream_index = st->index;
- dynarray_add(&matroska->packets,&matroska->num_packets,pkt);
- }
- } else {
- MatroskaTrackEncoding *encodings = track->encodings.elem;
- int offset = 0, pkt_size = lace_size[n];
- uint8_t *pkt_data = data;
-
- if (pkt_size > size) {
- av_log(matroska->ctx, AV_LOG_ERROR, "Invalid packet size\n");
- break;
- }
+ if (timecode != AV_NOPTS_VALUE)
+ track->end_timecode =
+ FFMAX(track->end_timecode, timecode + block_duration);
- if (encodings && encodings->scope & 1) {
- offset = matroska_decode_buffer(&pkt_data,&pkt_size, track);
- if (offset < 0)
- continue;
- }
+ for (n = 0; n < laces; n++) {
+ if ((st->codec->codec_id == AV_CODEC_ID_RA_288 ||
+ st->codec->codec_id == AV_CODEC_ID_COOK ||
+ st->codec->codec_id == AV_CODEC_ID_SIPR ||
+ st->codec->codec_id == AV_CODEC_ID_ATRAC3) &&
+ st->codec->block_align && track->audio.sub_packet_size) {
- pkt = av_mallocz(sizeof(AVPacket));
- /* XXX: prevent data copy... */
- if (av_new_packet(pkt, pkt_size+offset) < 0) {
- av_free(pkt);
- res = AVERROR(ENOMEM);
- break;
- }
- if (offset)
- memcpy (pkt->data, encodings->compression.settings.data, offset);
- memcpy (pkt->data+offset, pkt_data, pkt_size);
-
- if (pkt_data != data)
- av_free(pkt_data);
-
- if (n == 0)
- pkt->flags = is_keyframe;
- pkt->stream_index = st->index;
-
- if (track->ms_compat)
- pkt->dts = timecode;
- else
- pkt->pts = timecode;
- pkt->pos = pos;
- if (st->codec->codec_id == CODEC_ID_TEXT)
- pkt->convergence_duration = duration;
- else if (track->type != MATROSKA_TRACK_TYPE_SUBTITLE)
- pkt->duration = duration;
-
- if (st->codec->codec_id == CODEC_ID_SSA)
- matroska_fix_ass_packet(matroska, pkt, duration);
-
- if (matroska->prev_pkt &&
- timecode != AV_NOPTS_VALUE &&
- matroska->prev_pkt->pts == timecode &&
- matroska->prev_pkt->stream_index == st->index &&
- st->codec->codec_id == CODEC_ID_SSA)
- matroska_merge_packets(matroska->prev_pkt, pkt);
- else {
- dynarray_add(&matroska->packets,&matroska->num_packets,pkt);
- matroska->prev_pkt = pkt;
- }
- }
+ res = matroska_parse_rm_audio(matroska, track, st, data,
+ lace_size[n],
+ timecode, duration, pos);
+ if (res)
+ goto end;
- if (timecode != AV_NOPTS_VALUE)
- timecode = duration ? timecode + duration : AV_NOPTS_VALUE;
- data += lace_size[n];
- size -= lace_size[n];
+ } else {
+ res = matroska_parse_frame(matroska, track, st, data, lace_size[n],
+ timecode, duration,
+ pos, !n? is_keyframe : 0);
+ if (res)
+ goto end;
}
+
+ if (timecode != AV_NOPTS_VALUE)
+ timecode = duration ? timecode + duration : AV_NOPTS_VALUE;
+ data += lace_size[n];
}
+end:
av_free(lace_size);
return res;
}
+static int matroska_parse_cluster_incremental(MatroskaDemuxContext *matroska)
+{
+ EbmlList *blocks_list;
+ MatroskaBlock *blocks;
+ int i, res;
+ res = ebml_parse(matroska,
+ matroska_cluster_incremental_parsing,
+ &matroska->current_cluster);
+ if (res == 1) {
+ /* New Cluster */
+ if (matroska->current_cluster_pos)
+ ebml_level_end(matroska);
+ ebml_free(matroska_cluster, &matroska->current_cluster);
+ memset(&matroska->current_cluster, 0, sizeof(MatroskaCluster));
+ matroska->current_cluster_num_blocks = 0;
+ matroska->current_cluster_pos = avio_tell(matroska->ctx->pb);
+ matroska->prev_pkt = NULL;
+ /* sizeof the ID which was already read */
+ if (matroska->current_id)
+ matroska->current_cluster_pos -= 4;
+ res = ebml_parse(matroska,
+ matroska_clusters_incremental,
+ &matroska->current_cluster);
+ /* Try parsing the block again. */
+ if (res == 1)
+ res = ebml_parse(matroska,
+ matroska_cluster_incremental_parsing,
+ &matroska->current_cluster);
+ }
+
+ if (!res &&
+ matroska->current_cluster_num_blocks <
+ matroska->current_cluster.blocks.nb_elem) {
+ blocks_list = &matroska->current_cluster.blocks;
+ blocks = blocks_list->elem;
+
+ matroska->current_cluster_num_blocks = blocks_list->nb_elem;
+ i = blocks_list->nb_elem - 1;
+ if (blocks[i].bin.size > 0 && blocks[i].bin.data) {
+ int is_keyframe = blocks[i].non_simple ? !blocks[i].reference : -1;
+ if (!blocks[i].non_simple)
+ blocks[i].duration = AV_NOPTS_VALUE;
+ res = matroska_parse_block(matroska,
+ blocks[i].bin.data, blocks[i].bin.size,
+ blocks[i].bin.pos,
+ matroska->current_cluster.timecode,
+ blocks[i].duration, is_keyframe,
+ matroska->current_cluster_pos);
+ }
+ }
+
+ if (res < 0) matroska->done = 1;
+ return res;
+}
+
static int matroska_parse_cluster(MatroskaDemuxContext *matroska)
{
MatroskaCluster cluster = { 0 };
EbmlList *blocks_list;
MatroskaBlock *blocks;
int i, res;
- int64_t pos = url_ftell(matroska->ctx->pb);
+ int64_t pos;
+ if (!matroska->contains_ssa)
+ return matroska_parse_cluster_incremental(matroska);
+ pos = avio_tell(matroska->ctx->pb);
matroska->prev_pkt = NULL;
if (matroska->current_id)
pos -= 4; /* sizeof the ID which was already read */
res = ebml_parse(matroska, matroska_clusters, &cluster);
blocks_list = &cluster.blocks;
blocks = blocks_list->elem;
- for (i=0; i<blocks_list->nb_elem; i++)
+ for (i=0; i<blocks_list->nb_elem && !res; i++)
if (blocks[i].bin.size > 0 && blocks[i].bin.data) {
int is_keyframe = blocks[i].non_simple ? !blocks[i].reference : -1;
+ if (!blocks[i].non_simple)
+ blocks[i].duration = AV_NOPTS_VALUE;
res=matroska_parse_block(matroska,
blocks[i].bin.data, blocks[i].bin.size,
blocks[i].bin.pos, cluster.timecode,
pos);
}
ebml_free(matroska_cluster, &cluster);
- if (res < 0) matroska->done = 1;
return res;
}
static int matroska_read_packet(AVFormatContext *s, AVPacket *pkt)
{
MatroskaDemuxContext *matroska = s->priv_data;
+ int ret = 0;
- while (matroska_deliver_packet(matroska, pkt)) {
+ while (!ret && matroska_deliver_packet(matroska, pkt)) {
+ int64_t pos = avio_tell(matroska->ctx->pb);
if (matroska->done)
return AVERROR_EOF;
- matroska_parse_cluster(matroska);
+ if (matroska_parse_cluster(matroska) < 0)
+ ret = matroska_resync(matroska, pos);
}
- return 0;
+ if (ret == AVERROR_INVALIDDATA && pkt->data) {
+ pkt->flags |= AV_PKT_FLAG_CORRUPT;
+ return 0;
+ }
+
+ return ret;
}
static int matroska_read_seek(AVFormatContext *s, int stream_index,
AVStream *st = s->streams[stream_index];
int i, index, index_sub, index_min;
+ /* Parse the CUES now since we need the index data to seek. */
+ if (matroska->cues_parsing_deferred) {
+ matroska_parse_cues(matroska);
+ matroska->cues_parsing_deferred = 0;
+ }
+
if (!st->nb_index_entries)
return 0;
timestamp = FFMAX(timestamp, st->index_entries[0].timestamp);
if ((index = av_index_search_timestamp(st, timestamp, flags)) < 0) {
- url_fseek(s->pb, st->index_entries[st->nb_index_entries-1].pos, SEEK_SET);
+ avio_seek(s->pb, st->index_entries[st->nb_index_entries-1].pos, SEEK_SET);
+ matroska->current_id = 0;
while ((index = av_index_search_timestamp(st, timestamp, flags)) < 0) {
matroska_clear_queue(matroska);
if (matroska_parse_cluster(matroska) < 0)
index_min = index;
for (i=0; i < matroska->tracks.nb_elem; i++) {
+ tracks[i].audio.pkt_cnt = 0;
+ tracks[i].audio.sub_packet_cnt = 0;
+ tracks[i].audio.buf_timecode = AV_NOPTS_VALUE;
tracks[i].end_timecode = 0;
if (tracks[i].type == MATROSKA_TRACK_TYPE_SUBTITLE
&& !tracks[i].stream->discard != AVDISCARD_ALL) {
}
}
- url_fseek(s->pb, st->index_entries[index_min].pos, SEEK_SET);
+ avio_seek(s->pb, st->index_entries[index_min].pos, SEEK_SET);
+ matroska->current_id = 0;
matroska->skip_to_keyframe = !(flags & AVSEEK_FLAG_ANY);
matroska->skip_to_timecode = st->index_entries[index].timestamp;
matroska->done = 0;
- av_update_cur_dts(s, st, st->index_entries[index].timestamp);
+ ff_update_cur_dts(s, st, st->index_entries[index].timestamp);
return 0;
}
for (n=0; n < matroska->tracks.nb_elem; n++)
if (tracks[n].type == MATROSKA_TRACK_TYPE_AUDIO)
av_free(tracks[n].audio.buf);
+ ebml_free(matroska_cluster, &matroska->current_cluster);
ebml_free(matroska_segment, matroska);
return 0;
}
AVInputFormat ff_matroska_demuxer = {
- "matroska,webm",
- NULL_IF_CONFIG_SMALL("Matroska/WebM file format"),
- sizeof(MatroskaDemuxContext),
- matroska_probe,
- matroska_read_header,
- matroska_read_packet,
- matroska_read_close,
- matroska_read_seek,
+ .name = "matroska,webm",
+ .long_name = NULL_IF_CONFIG_SMALL("Matroska / WebM"),
+ .priv_data_size = sizeof(MatroskaDemuxContext),
+ .read_probe = matroska_probe,
+ .read_header = matroska_read_header,
+ .read_packet = matroska_read_packet,
+ .read_close = matroska_read_close,
+ .read_seek = matroska_read_seek,
};
projects / ffmpeg / blobdiff