/*
* Matroska file demuxer
- * Copyright (c) 2003-2008 The Libav Project
+ * Copyright (c) 2003-2008 The FFmpeg Project
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "isom.h"
#include "rm.h"
#include "matroska.h"
+#include "libavcodec/bytestream.h"
#include "libavcodec/mpeg4audio.h"
#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
uint64_t display_height;
uint64_t pixel_width;
uint64_t pixel_height;
- uint64_t fourcc;
+ EbmlBin color_space;
+ uint64_t stereo_mode;
} MatroskaTrackVideo;
typedef struct {
uint8_t *buf;
} MatroskaTrackAudio;
+typedef struct {
+ uint64_t uid;
+ uint64_t type;
+} MatroskaTrackPlane;
+
+typedef struct {
+ EbmlList combine_planes;
+} MatroskaTrackOperation;
+
typedef struct {
uint64_t num;
uint64_t uid;
uint64_t flag_forced;
MatroskaTrackVideo video;
MatroskaTrackAudio audio;
+ MatroskaTrackOperation operation;
EbmlList encodings;
AVStream *stream;
uint64_t time_scale;
double duration;
char *title;
+ EbmlBin date_utc;
EbmlList tracks;
EbmlList attachments;
EbmlList chapters;
{ MATROSKA_ID_TITLE, EBML_UTF8, 0, offsetof(MatroskaDemuxContext,title) },
{ MATROSKA_ID_WRITINGAPP, EBML_NONE },
{ MATROSKA_ID_MUXINGAPP, EBML_NONE },
- { MATROSKA_ID_DATEUTC, EBML_NONE },
+ { MATROSKA_ID_DATEUTC, EBML_BIN, 0, offsetof(MatroskaDemuxContext,date_utc) },
{ MATROSKA_ID_SEGMENTUID, EBML_NONE },
{ 0 }
};
{ MATROSKA_ID_VIDEODISPLAYHEIGHT, EBML_UINT, 0, offsetof(MatroskaTrackVideo,display_height) },
{ MATROSKA_ID_VIDEOPIXELWIDTH, EBML_UINT, 0, offsetof(MatroskaTrackVideo,pixel_width) },
{ MATROSKA_ID_VIDEOPIXELHEIGHT, EBML_UINT, 0, offsetof(MatroskaTrackVideo,pixel_height) },
- { MATROSKA_ID_VIDEOCOLORSPACE, EBML_UINT, 0, offsetof(MatroskaTrackVideo,fourcc) },
+ { MATROSKA_ID_VIDEOCOLORSPACE, EBML_BIN, 0, offsetof(MatroskaTrackVideo,color_space) },
+ { MATROSKA_ID_VIDEOSTEREOMODE, EBML_UINT, 0, offsetof(MatroskaTrackVideo,stereo_mode) },
{ MATROSKA_ID_VIDEOPIXELCROPB, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPT, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPL, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPR, EBML_NONE },
{ MATROSKA_ID_VIDEODISPLAYUNIT, EBML_NONE },
{ MATROSKA_ID_VIDEOFLAGINTERLACED,EBML_NONE },
- { MATROSKA_ID_VIDEOSTEREOMODE, EBML_NONE },
{ MATROSKA_ID_VIDEOASPECTRATIO, EBML_NONE },
{ 0 }
};
{ 0 }
};
+static EbmlSyntax matroska_track_plane[] = {
+ { MATROSKA_ID_TRACKPLANEUID, EBML_UINT, 0, offsetof(MatroskaTrackPlane,uid) },
+ { MATROSKA_ID_TRACKPLANETYPE, EBML_UINT, 0, offsetof(MatroskaTrackPlane,type) },
+ { 0 }
+};
+
+static EbmlSyntax matroska_track_combine_planes[] = {
+ { MATROSKA_ID_TRACKPLANE, EBML_NEST, sizeof(MatroskaTrackPlane), offsetof(MatroskaTrackOperation,combine_planes), {.n=matroska_track_plane} },
+ { 0 }
+};
+
+static EbmlSyntax matroska_track_operation[] = {
+ { MATROSKA_ID_TRACKCOMBINEPLANES, EBML_NEST, 0, 0, {.n=matroska_track_combine_planes} },
+ { 0 }
+};
+
static EbmlSyntax matroska_track[] = {
{ MATROSKA_ID_TRACKNUMBER, EBML_UINT, 0, offsetof(MatroskaTrack,num) },
{ MATROSKA_ID_TRACKNAME, EBML_UTF8, 0, offsetof(MatroskaTrack,name) },
{ MATROSKA_ID_TRACKFLAGFORCED, EBML_UINT, 0, offsetof(MatroskaTrack,flag_forced), {.u=0} },
{ MATROSKA_ID_TRACKVIDEO, EBML_NEST, 0, offsetof(MatroskaTrack,video), {.n=matroska_track_video} },
{ MATROSKA_ID_TRACKAUDIO, EBML_NEST, 0, offsetof(MatroskaTrack,audio), {.n=matroska_track_audio} },
+ { MATROSKA_ID_TRACKOPERATION, EBML_NEST, 0, offsetof(MatroskaTrack,operation), {.n=matroska_track_operation} },
{ MATROSKA_ID_TRACKCONTENTENCODINGS,EBML_NEST, 0, 0, {.n=matroska_track_encodings} },
{ MATROSKA_ID_TRACKFLAGENABLED, EBML_NONE },
{ MATROSKA_ID_TRACKFLAGLACING, EBML_NONE },
static EbmlSyntax matroska_blockgroup[] = {
{ MATROSKA_ID_BLOCK, EBML_BIN, 0, offsetof(MatroskaBlock,bin) },
{ MATROSKA_ID_SIMPLEBLOCK, EBML_BIN, 0, offsetof(MatroskaBlock,bin) },
- { MATROSKA_ID_BLOCKDURATION, EBML_UINT, 0, offsetof(MatroskaBlock,duration), {.u=AV_NOPTS_VALUE} },
+ { MATROSKA_ID_BLOCKDURATION, EBML_UINT, 0, offsetof(MatroskaBlock,duration) },
{ MATROSKA_ID_BLOCKREFERENCE, EBML_UINT, 0, offsetof(MatroskaBlock,reference) },
{ 1, EBML_UINT, 0, offsetof(MatroskaBlock,non_simple), {.u=1} },
{ 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 || avio_tell(pb) <= last_pos)
+ goto eof;
+
+ id = avio_rb32(pb);
+
+ // try to find a toplevel element
+ while (!url_feof(pb)) {
+ 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.
*/
* use it safely here to catch EOS. */
if (!(total = avio_r8(pb))) {
/* we might encounter EOS here */
- if (!pb->eof_reached) {
+ if (!url_feof(pb)) {
int64_t pos = avio_tell(pb);
av_log(matroska->ctx, AV_LOG_ERROR,
"Read error at pos. %"PRIu64" (0x%"PRIx64")\n",
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 avio_skip(pb,length)<0 ? AVERROR(EIO) : 0;
+ default:
+ if(ffio_limit(pb, length) != length)
+ return AVERROR(EIO);
+ return avio_skip(pb,length)<0 ? AVERROR(EIO) : 0;
}
if (res == AVERROR_INVALIDDATA)
av_log(matroska->ctx, AV_LOG_ERROR, "Invalid element\n");
int result = 0;
int olen;
- if (pkt_size >= 10000000)
- return -1;
+ if (pkt_size >= 10000000U)
+ return AVERROR_INVALIDDATA;
switch (encodings[0].compression.algo) {
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 && !header) {
+ av_log(0, AV_LOG_ERROR, "Compression size but no data in headerstrip\n");
+ return -1;
+ }
+
if (!header_size)
return 0;
olen = pkt_size *= 3;
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;
#if CONFIG_ZLIB
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);
+ if (pkt_data) {
+ result = inflate(&zstream, Z_NO_FLUSH);
+ } else
+ result = Z_MEM_ERROR;
} 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
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);
+ if (pkt_data) {
+ result = BZ2_bzDecompress(&bzstream);
+ } else
+ result = BZ_MEM_ERROR;
} 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,
char *line, *layer, *ptr = pkt->data, *end = ptr+pkt->size;
for (; *ptr!=',' && ptr<end-1; ptr++);
if (*ptr == ',')
- layer = ++ptr;
+ ptr++;
+ layer = ptr;
for (; *ptr!=',' && ptr<end-1; ptr++);
if (*ptr == ',') {
int64_t end_pts = pkt->pts + display_duration;
static int matroska_merge_packets(AVPacket *out, AVPacket *in)
{
- void *newdata = av_realloc(out->data, out->size+in->size);
- if (!newdata)
- return AVERROR(ENOMEM);
- out->data = newdata;
- memcpy(out->data+out->size, in->data, in->size);
- out->size += in->size;
+ int ret = av_grow_packet(out, in->size);
+ if (ret < 0)
+ return ret;
+ memcpy(out->data + out->size - in->size, in->data, in->size);
av_destruct_packet(in);
av_free(in);
return 0;
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");
continue;
}
- if (matroska_parse_seekhead_entry(matroska, i) < 0)
+ if (matroska_parse_seekhead_entry(matroska, i) < 0) {
+ // mark index as broken
+ matroska->cues_parsing_deferred = -1;
break;
+ }
}
}
-static void matroska_parse_cues(MatroskaDemuxContext *matroska) {
- EbmlList *seekhead_list = &matroska->seekhead;
- MatroskaSeekhead *seekhead = seekhead_list->elem;
+static void matroska_add_index_entries(MatroskaDemuxContext *matroska) {
EbmlList *index_list;
MatroskaIndex *index;
int index_scale = 1;
int i, j;
- for (i = 0; i < seekhead_list->nb_elem; i++)
- if (seekhead[i].id == MATROSKA_ID_CUES)
- break;
- assert(i <= seekhead_list->nb_elem);
-
- matroska_parse_seekhead_entry(matroska, i);
-
index_list = &matroska->index;
index = index_list->elem;
if (index_list->nb_elem
}
}
+static void matroska_parse_cues(MatroskaDemuxContext *matroska) {
+ EbmlList *seekhead_list = &matroska->seekhead;
+ MatroskaSeekhead *seekhead = seekhead_list->elem;
+ int i;
+
+ for (i = 0; i < seekhead_list->nb_elem; i++)
+ if (seekhead[i].id == MATROSKA_ID_CUES)
+ break;
+ assert(i <= seekhead_list->nb_elem);
+
+ if (matroska_parse_seekhead_entry(matroska, i) < 0)
+ matroska->cues_parsing_deferred = -1;
+ matroska_add_index_entries(matroska);
+}
+
static int matroska_aac_profile(char *codec_id)
{
static const char * const aac_profiles[] = { "MAIN", "LC", "SSR" };
return sri;
}
+static void matroska_metadata_creation_time(AVDictionary **metadata, int64_t date_utc)
+{
+ char buffer[32];
+ /* Convert to seconds and adjust by number of seconds between 2001-01-01 and Epoch */
+ time_t creation_time = date_utc / 1000000000 + 978307200;
+ struct tm *ptm = gmtime(&creation_time);
+ if (!ptm) return;
+ strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm);
+ av_dict_set(metadata, "creation_time", buffer, 0);
+}
+
static int matroska_read_header(AVFormatContext *s)
{
MatroskaDemuxContext *matroska = s->priv_data;
MatroskaChapter *chapters;
MatroskaTrack *tracks;
uint64_t max_start = 0;
+ int64_t pos;
Ebml ebml = { 0 };
AVStream *st;
- int i, j, res;
+ int i, j, k, res;
matroska->ctx = s;
/* First read the EBML header. */
if (ebml_parse(matroska, ebml_syntax, &ebml)
|| ebml.version > EBML_VERSION || ebml.max_size > sizeof(uint64_t)
- || ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 2) {
+ || ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 3 || !ebml.doctype) {
av_log(matroska->ctx, AV_LOG_ERROR,
"EBML header using unsupported features\n"
"(EBML version %"PRIu64", doctype %s, doc version %"PRIu64")\n",
ebml.version, ebml.doctype, ebml.doctype_version);
ebml_free(ebml_syntax, &ebml);
return AVERROR_PATCHWELCOME;
+ } else if (ebml.doctype_version == 3) {
+ av_log(matroska->ctx, AV_LOG_WARNING,
+ "EBML header using unsupported features\n"
+ "(EBML version %"PRIu64", doctype %s, doc version %"PRIu64")\n",
+ ebml.version, ebml.doctype, ebml.doctype_version);
}
for (i = 0; i < FF_ARRAY_ELEMS(matroska_doctypes); i++)
if (!strcmp(ebml.doctype, matroska_doctypes[i]))
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)
* 1000 / AV_TIME_BASE;
av_dict_set(&s->metadata, "title", matroska->title, 0);
+ if (matroska->date_utc.size == 8)
+ matroska_metadata_creation_time(&s->metadata, AV_RB64(matroska->date_utc.data));
+
tracks = matroska->tracks.elem;
for (i=0; i < matroska->tracks.nb_elem; i++) {
MatroskaTrack *track = &tracks[i];
enum AVCodecID codec_id = AV_CODEC_ID_NONE;
- EbmlList *encodings_list = &tracks->encodings;
+ EbmlList *encodings_list = &track->encodings;
MatroskaTrackEncoding *encodings = encodings_list->elem;
uint8_t *extradata = NULL;
int extradata_size = 0;
int extradata_offset = 0;
+ uint32_t fourcc = 0;
AVIOContext b;
/* Apply some sanity checks. */
track->video.display_width = track->video.pixel_width;
if (!track->video.display_height)
track->video.display_height = track->video.pixel_height;
+ if (track->video.color_space.size == 4)
+ fourcc = AV_RL32(track->video.color_space.data);
} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
if (!track->audio.out_samplerate)
track->audio.out_samplerate = track->audio.samplerate;
&& track->codec_priv.size >= 40
&& track->codec_priv.data != NULL) {
track->ms_compat = 1;
- track->video.fourcc = AV_RL32(track->codec_priv.data + 16);
- codec_id = ff_codec_get_id(ff_codec_bmp_tags, track->video.fourcc);
+ fourcc = AV_RL32(track->codec_priv.data + 16);
+ codec_id = ff_codec_get_id(ff_codec_bmp_tags, fourcc);
extradata_offset = 40;
} else if (!strcmp(track->codec_id, "A_MS/ACM")
&& track->codec_priv.size >= 14
} 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(ff_codec_movvideo_tags, track->video.fourcc);
+ fourcc = AV_RL32(track->codec_priv.data);
+ codec_id = ff_codec_get_id(ff_codec_movvideo_tags, fourcc);
+ } else if (codec_id == AV_CODEC_ID_ALAC && track->codec_priv.size && track->codec_priv.size < INT_MAX-12) {
+ /* 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_PCM_S16BE) {
switch (track->audio.bitdepth) {
case 8: codec_id = AV_CODEC_ID_PCM_U8; break;
extradata_size = 2;
} else if (codec_id == AV_CODEC_ID_TTA) {
extradata_size = 30;
- extradata = av_mallocz(extradata_size);
+ extradata = av_mallocz(extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (extradata == NULL)
return AVERROR(ENOMEM);
ffio_init_context(&b, extradata, extradata_size, 1,
} else if (codec_id == AV_CODEC_ID_RA_144) {
track->audio.out_samplerate = 8000;
track->audio.channels = 1;
- } 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) {
+ } 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)
+ && track->codec_priv.data) {
int flavor;
+
ffio_init_context(&b, track->codec_priv.data,track->codec_priv.size,
0, NULL, NULL, NULL, NULL);
avio_skip(&b, 22);
}
if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
+ MatroskaTrackPlane *planes = track->operation.combine_planes.elem;
+
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_tag = track->video.fourcc;
+ st->codec->codec_tag = fourcc;
st->codec->width = track->video.pixel_width;
st->codec->height = track->video.pixel_height;
av_reduce(&st->sample_aspect_ratio.num,
st->codec->height * track->video.display_width,
st->codec-> width * track->video.display_height,
255);
- if (st->codec->codec_id != AV_CODEC_ID_H264)
st->need_parsing = AVSTREAM_PARSE_HEADERS;
if (track->default_duration) {
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
st->r_frame_rate = st->avg_frame_rate;
#endif
}
+
+ /* export stereo mode flag as metadata tag */
+ if (track->video.stereo_mode && track->video.stereo_mode < MATROSKA_VIDEO_STEREO_MODE_COUNT)
+ av_dict_set(&st->metadata, "stereo_mode", ff_matroska_video_stereo_mode[track->video.stereo_mode], 0);
+
+ /* if we have virtual track, mark the real tracks */
+ for (j=0; j < track->operation.combine_planes.nb_elem; j++) {
+ char buf[32];
+ if (planes[j].type >= MATROSKA_VIDEO_STEREO_PLANE_COUNT)
+ continue;
+ snprintf(buf, sizeof(buf), "%s_%d",
+ ff_matroska_video_stereo_plane[planes[j].type], i);
+ for (k=0; k < matroska->tracks.nb_elem; k++)
+ if (planes[j].uid == tracks[k].uid) {
+ av_dict_set(&s->streams[k]->metadata,
+ "stereo_mode", buf, 0);
+ break;
+ }
+ }
} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->sample_rate = track->audio.out_samplerate;
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);
+ st->codec->extradata = av_malloc(attachements[j].bin.size + FF_INPUT_BUFFER_PADDING_SIZE);
if(st->codec->extradata == NULL)
break;
st->codec->extradata_size = attachements[j].bin.size;
max_start = chapters[i].start;
}
+ matroska_add_index_entries(matroska);
+
matroska_convert_tags(s);
return 0;
}
}
+static int matroska_parse_laces(MatroskaDemuxContext *matroska, uint8_t **buf,
+ int size, int type,
+ uint32_t **lace_buf, int *laces)
+{
+ int res = 0, n;
+ 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;
+ }
+
+ av_assert0(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;
+ 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");
+ 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;
+
+ return res;
+}
+
+static int matroska_parse_rm_audio(MatroskaDemuxContext *matroska,
+ MatroskaTrack *track,
+ AVStream *st,
+ uint8_t *data, int size,
+ uint64_t timecode,
+ 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;
+}
+static int matroska_parse_frame(MatroskaDemuxContext *matroska,
+ MatroskaTrack *track,
+ AVStream *st,
+ uint8_t *data, int pkt_size,
+ uint64_t timecode, uint64_t lace_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_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_SUBRIP) {
+ /*
+ * For backward compatibility.
+ * Historically, we have put subtitle duration
+ * in convergence_duration, on the off chance
+ * that the time_scale is less than 1us, which
+ * could result in a 32bit overflow on the
+ * normal duration field.
+ */
+ pkt->convergence_duration = lace_duration;
+ }
+
+ if (track->type != MATROSKA_TRACK_TYPE_SUBTITLE ||
+ lace_duration <= INT_MAX) {
+ /*
+ * For non subtitle tracks, just store the duration
+ * as normal.
+ *
+ * If it's a subtitle track and duration value does
+ * not overflow a uint32, then also store it normally.
+ */
+ pkt->duration = lace_duration;
+ }
+
+ if (st->codec->codec_id == AV_CODEC_ID_SSA)
+ matroska_fix_ass_packet(matroska, pkt, lace_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;
+}
+
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;
st = track->stream;
if (st->discard >= AVDISCARD_ALL)
return res;
- if (duration == AV_NOPTS_VALUE)
- duration = track->default_duration / matroska->time_scale;
+ av_assert1(block_duration != AV_NOPTS_VALUE);
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) {
- if (!is_keyframe || timecode < matroska->skip_to_timecode)
+ if (timecode < matroska->skip_to_timecode)
return res;
- matroska->skip_to_keyframe = 0;
+ if (!st->skip_to_keyframe) {
+ av_log(matroska->ctx, AV_LOG_ERROR, "File is broken, keyframes not correctly marked!\n");
+ matroska->skip_to_keyframe = 0;
+ }
+ if (is_keyframe)
+ 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;
+ res = matroska_parse_laces(matroska, &data, size, (flags & 0x06) >> 1,
+ &lace_size, &laces);
- 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;
- }
-
- case 0x2: /* fixed-size lacing */
- for (n = 0; n < laces; n++)
- lace_size[n] = size / laces;
- break;
-
- 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[laces - 1] = size - total;
- break;
- }
- }
- break;
- }
+ if (res)
+ goto end;
- if (res == 0) {
- 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) {
- 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");
- res = AVERROR_INVALIDDATA;
- goto end;
- }
- 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");
- res = AVERROR_INVALIDDATA;
- goto end;
- }
- 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");
- res = AVERROR_INVALIDDATA;
- goto end;
- }
- 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 (!block_duration)
+ block_duration = track->default_duration * laces / matroska->time_scale;
- 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) {
- 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);
- }
- } else {
- MatroskaTrackEncoding *encodings = track->encodings.elem;
- int pkt_size = lace_size[n];
- uint8_t *pkt_data = data;
+ if (cluster_time != (uint64_t)-1 && (block_time >= 0 || cluster_time >= -block_time))
+ track->end_timecode =
+ FFMAX(track->end_timecode, timecode + block_duration);
- if (pkt_size > size) {
- av_log(matroska->ctx, AV_LOG_ERROR, "Invalid packet size\n");
- break;
- }
+ for (n = 0; n < laces; n++) {
+ int64_t lace_duration = block_duration*(n+1) / laces - block_duration*n / laces;
- if (encodings && encodings->scope & 1) {
- res = matroska_decode_buffer(&pkt_data, &pkt_size, track);
- if (res < 0)
- break;
- }
+ if (lace_size[n] > size) {
+ av_log(matroska->ctx, AV_LOG_ERROR, "Invalid packet size\n");
+ break;
+ }
- pkt = av_mallocz(sizeof(AVPacket));
- /* XXX: prevent data copy... */
- if (av_new_packet(pkt, pkt_size) < 0) {
- av_free(pkt);
- res = AVERROR(ENOMEM);
- break;
- }
+ 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) {
- memcpy(pkt->data, 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 == 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;
- }
- }
+ res = matroska_parse_rm_audio(matroska, track, st, data, size,
+ timecode, 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, lace_duration,
+ pos, !n? is_keyframe : 0);
+ if (res)
+ goto end;
}
+
+ if (timecode != AV_NOPTS_VALUE)
+ timecode = lace_duration ? timecode + lace_duration : AV_NOPTS_VALUE;
+ data += lace_size[n];
+ size -= lace_size[n];
}
end:
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;
+ blocks[i].duration = 0;
res = matroska_parse_block(matroska,
blocks[i].bin.data, blocks[i].bin.size,
blocks[i].bin.pos,
res = ebml_parse(matroska, matroska_clusters, &cluster);
blocks_list = &cluster.blocks;
blocks = blocks_list->elem;
- for (i=0; i<blocks_list->nb_elem && !res; i++)
+ for (i=0; i<blocks_list->nb_elem; 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 (!ret && matroska_deliver_packet(matroska, pkt)) {
+ while (matroska_deliver_packet(matroska, pkt)) {
+ int64_t pos = avio_tell(matroska->ctx->pb);
if (matroska->done)
return AVERROR_EOF;
- ret = matroska_parse_cluster(matroska);
+ if (matroska_parse_cluster(matroska) < 0)
+ matroska_resync(matroska, pos);
}
- if (ret == AVERROR_INVALIDDATA) {
- pkt->flags |= AV_PKT_FLAG_CORRUPT;
- return 0;
- }
-
- return ret;
+ return 0;
}
static int matroska_read_seek(AVFormatContext *s, int 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);
+ if (matroska->cues_parsing_deferred > 0) {
matroska->cues_parsing_deferred = 0;
+ matroska_parse_cues(matroska);
}
if (!st->nb_index_entries)
- return 0;
+ goto err;
timestamp = FFMAX(timestamp, st->index_entries[0].timestamp);
if ((index = av_index_search_timestamp(st, timestamp, flags)) < 0) {
}
matroska_clear_queue(matroska);
- if (index < 0)
- return 0;
+ if (index < 0 || (matroska->cues_parsing_deferred < 0 && index == st->nb_index_entries - 1))
+ goto err;
index_min = index;
for (i=0; i < matroska->tracks.nb_elem; i++) {
avio_seek(s->pb, st->index_entries[index_min].pos, SEEK_SET);
matroska->current_id = 0;
+ st->skip_to_keyframe =
matroska->skip_to_keyframe = !(flags & AVSEEK_FLAG_ANY);
matroska->skip_to_timecode = st->index_entries[index].timestamp;
matroska->done = 0;
+ matroska->num_levels = 0;
ff_update_cur_dts(s, st, st->index_entries[index].timestamp);
return 0;
+err:
+ // slightly hackish but allows proper fallback to
+ // the generic seeking code.
+ matroska_clear_queue(matroska);
+ matroska->current_id = 0;
+ st->skip_to_keyframe =
+ matroska->skip_to_keyframe = 0;
+ matroska->done = 0;
+ matroska->num_levels = 0;
+ return -1;
}
static int matroska_read_close(AVFormatContext *s)
projects / ffmpeg / blobdiff