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Modified the VobSub reader/packetizer to work with the new specs and with multiple-languages-per-idx files.

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This commit is contained in:
Moritz Bunkus 2003-09-21 17:43:15 +00:00
parent 91a1a26c27
commit 8c0bf65d83
6 changed files with 196 additions and 231 deletions
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14
src/mkvmerge.cpp
View File

@ -83,7 +83,7 @@
#include "r_real.h"
#include "r_srt.h"
#include "r_ssa.h"
// #include "r_vobsub.h"
#include "r_vobsub.h"
#include "r_wav.h"
#include "tagparser.h"
@ -203,7 +203,7 @@ file_type_t file_types[] =
{"rm ", TYPEREAL, "RealMedia audio and video"},
{"srt", TYPESRT, "SRT text subtitles"},
{"ssa", TYPESSA, "SSA/ASS text subtitles"},
// {"idx", TYPEVOBSUB, "VobSub subtitles"},
{"idx", TYPEVOBSUB, "VobSub subtitles"},
{"wav", TYPEWAV, "WAVE (uncompressed PCM)"},
{"output modules:", -1, ""},
{" ", -1, "AAC audio"},
@ -373,8 +373,8 @@ static int get_type(char *filename) {
type = TYPESRT;
else if (ssa_reader_c::probe_file(mm_text_io, size))
type = TYPESSA;
// else if (vobsub_reader_c::probe_file(mm_text_io, size))
// type = TYPEVOBSUB;
else if (vobsub_reader_c::probe_file(mm_text_io, size))
type = TYPEVOBSUB;
else
type = TYPEUNKNOWN;
@ -972,9 +972,9 @@ static void create_readers() {
case TYPESSA:
file->reader = new ssa_reader_c(file->ti);
break;
// case TYPEVOBSUB:
// file->reader = new vobsub_reader_c(file->ti);
// break;
case TYPEVOBSUB:
file->reader = new vobsub_reader_c(file->ti);
break;
case TYPEQTMP4:
file->reader = new qtmp4_reader_c(file->ti);
break;

37
src/p_vobsub.cpp
View File

@ -36,8 +36,6 @@ using namespace libmatroska;
vobsub_packetizer_c::vobsub_packetizer_c(generic_reader_c *nreader,
const void *nidx_data,
int nidx_data_size,
const void *nifo_data,
int nifo_data_size,
int ncompression_type,
int ncompressed_type,
track_info_t *nti) throw (error_c):
@ -48,14 +46,6 @@ vobsub_packetizer_c::vobsub_packetizer_c(generic_reader_c *nreader,
idx_data = (unsigned char *)safememdup(nidx_data, nidx_data_size);
idx_data_size = nidx_data_size;
if ((nifo_data != NULL) && (nifo_data_size != 0)) {
ifo_data = (unsigned char *)safememdup(nifo_data, nifo_data_size);
ifo_data_size = nifo_data_size;
} else {
ifo_data = NULL;
ifo_data_size = 0;
}
if (nti->compression == COMPRESSION_UNSPECIFIED)
compression_type = ncompression_type;
else
@ -124,7 +114,6 @@ vobsub_packetizer_c::vobsub_packetizer_c(generic_reader_c *nreader,
vobsub_packetizer_c::~vobsub_packetizer_c() {
safefree(idx_data);
safefree(ifo_data);
if (compression_type != compressed_type) {
if (compression_type == COMPRESSION_LZO) {
@ -147,8 +136,6 @@ vobsub_packetizer_c::~vobsub_packetizer_c() {
void vobsub_packetizer_c::set_headers() {
string codec_id;
unsigned char *priv;
int priv_size, i, size_tmp;
codec_id = MKV_S_VOBSUB;
if (compression_type == COMPRESSION_LZO)
@ -159,29 +146,7 @@ void vobsub_packetizer_c::set_headers() {
codec_id += "/BZ2";
set_codec_id(codec_id.c_str());
priv_size = idx_data_size + 1;
if (ifo_data_size > 0)
priv_size += ifo_data_size + idx_data_size / 255 + 1;
priv = (unsigned char *)safemalloc(priv_size);
i = 1;
if (ifo_data_size > 0) {
priv[0] = 1;
size_tmp = idx_data_size;
while (size_tmp >= 255) {
priv[i] = 0xff;
i++;
size_tmp -= 255;
}
priv[i] = size_tmp;
i++;
memcpy(&priv[i + idx_data_size], ifo_data, ifo_data_size);
} else {
priv[0] = 0;
}
memcpy(&priv[i], idx_data, idx_data_size);
set_codec_private(priv, priv_size);
safefree(priv);
set_codec_private(idx_data, idx_data_size);
generic_packetizer_c::set_headers();

5
src/p_vobsub.h
View File

@ -32,8 +32,8 @@
class vobsub_packetizer_c: public generic_packetizer_c {
private:
unsigned char *idx_data, *ifo_data;
int idx_data_size, ifo_data_size;
unsigned char *idx_data;
int idx_data_size;
bool compressed;
int compression_type, compressed_type;
int64_t raw_size, compressed_size, items;
@ -45,7 +45,6 @@ private:
public:
vobsub_packetizer_c(generic_reader_c *nreader,
const void *nidx_data, int nidx_data_size,
const void *nifo_data, int nifo_data_size,
int ncompression_type, int ncompressed_type,
track_info_t *nti) throw (error_c);
virtual ~vobsub_packetizer_c();

40
src/r_matroska.cpp
View File

@ -439,43 +439,6 @@ void kax_reader_c::verify_tracks() {
"private data found.\n", t->tnum, t->codec_id);
continue;
}
c = (unsigned char *)t->private_data;
if (c[0] > 1) {
if (verbose)
mxwarn(PFX "VobSub track does not contain valid headers.\n");
continue;
}
offset = 1;
t->header_sizes[c[0]] = t->private_size;
for (i = 0; i < c[0]; i++) {
length = 0;
while ((c[offset] == (unsigned char)255) &&
(length < t->private_size)) {
length += 255;
offset++;
}
if (offset >= (t->private_size - 1)) {
if (verbose)
mxwarn(PFX "VobSub track does not "
"contain valid headers.\n");
continue;
}
length += c[offset];
offset++;
t->header_sizes[i] = length;
t->header_sizes[c[0]] -= length;
}
t->header_sizes[c[0]] -= offset;
t->headers[0] = &c[offset];
if (c[0] == 1)
t->headers[1] = & c[offset + t->header_sizes[0]];
else {
t->headers[1] = NULL;
t->header_sizes[1] = 0;
}
}
t->ok = 1;
break;
@ -1236,8 +1199,7 @@ void kax_reader_c::create_packetizers() {
}
t->packetizer =
new vobsub_packetizer_c(this, t->headers[0], t->header_sizes[0],
t->headers[1], t->header_sizes[1],
new vobsub_packetizer_c(this, t->private_data, t->private_size,
compression, compressed, &nti);
if (verbose)
mxinfo("Matroska demultiplexer (%s): using the VobSub "

303
src/r_vobsub.cpp
View File

@ -59,15 +59,10 @@ using namespace std;
ishexdigit(*(s + 6)) && \
ishexdigit(*(s + 7)) && \
ishexdigit(*(s + 8)))
// timestamp: 00:01:43:603, filepos: 000000000
#define isvobsubline_v3(s) ((strlen(s) >= 43) && \
#define isvobsubline_v7(s) ((strlen(s) >= 42) && \
istimestampstr(s) && istimecode(s + 11) && \
iscommafileposstr(s + 23) && \
isfilepos(s + 34))
#define isvobsubline_v7(s) ((strlen(s) >= 42) && \
istimecodestr(s) && istimecode(s + 10) && \
iscommafileposstr(s + 22) && \
isfilepos(s + 33))
#define PFX "vobsub_reader: "
@ -90,10 +85,9 @@ int vobsub_reader_c::probe_file(mm_io_c *mm_io, int64_t size) {
vobsub_reader_c::vobsub_reader_c(track_info_t *nti) throw (error_c):
generic_reader_c(nti) {
mm_io_c *ifo_file;
string sub_name, ifo_name, line;
string sub_name, line;
int len;
try {
idx_file = new mm_text_io_c(ti->fname);
} catch (...) {
@ -115,34 +109,8 @@ vobsub_reader_c::vobsub_reader_c(track_info_t *nti) throw (error_c):
throw error_c(emsg.c_str());
}
ifo_name = ti->fname;
len = ifo_name.rfind(".");
if (len >= 0)
ifo_name.erase(len);
ifo_name += ".ifo";
ifo_file = NULL;
try {
ifo_file = new mm_io_c(ifo_name.c_str(), MODE_READ);
ifo_file->setFilePointer(0, seek_end);
ifo_data_size = ifo_file->getFilePointer();
ifo_file->setFilePointer(0);
ifo_data = (unsigned char *)safemalloc(ifo_data_size);
if (ifo_file->read(ifo_data, ifo_data_size) != ifo_data_size)
mxerror(PFX "Could not read the IFO file.\n");
delete ifo_file;
} catch (...) {
if (ifo_file != NULL)
delete ifo_file;
ifo_data = NULL;
ifo_data_size = 0;
}
idx_data = "";
last_filepos = -1;
last_timestamp = -1;
act_wchar = 0;
done = false;
len = strlen("# VobSub index file, v");
if (!idx_file->getline2(line) ||
@ -156,143 +124,189 @@ vobsub_reader_c::vobsub_reader_c(track_info_t *nti) throw (error_c):
version = version * 10 + line[len] - '0';
len++;
}
mxverb(2, PFX "Version: %u\n", version);
if (version < 7)
mxerror(PFX "Only v7 and newer VobSub files are supported. If you have an "
"older version then use the VSConv utility from "
"http://sourceforge.net/projects/guliverkli/ to convert these "
"files to v7 files.\n");
if ((version != 3) && (version != 7))
mxerror(PFX "Unsupported file type version %d.\n", version);
if (!parse_headers())
throw error_c(PFX "The input file is not a valid VobSub file.");
packetizer = new vobsub_packetizer_c(this, idx_data.c_str(),
idx_data.length(), ifo_data,
ifo_data_size, COMPRESSION_ZLIB,
COMPRESSION_NONE, ti);
if (verbose) {
mxinfo("Using VobSub subtitle reader for '%s'/'%s'. ", ti->fname,
sub_name.c_str());
if (ifo_data_size != 0)
mxinfo("Using IFO file '%s'.", ifo_name.c_str());
else
mxinfo("No IFO file found.");
mxinfo("\n+-> Using VobSub subtitle output module for subtitles.\n");
}
parse_headers();
mxinfo("Using VobSub subtitle reader for '%s' & '%s'.\n", ti->fname,
sub_name.c_str());
create_packetizers();
}
vobsub_reader_c::~vobsub_reader_c() {
uint32_t i;
for (i = 0; i < tracks.size(); i++)
delete tracks[i];
delete sub_file;
delete idx_file;
safefree(ifo_data);
delete packetizer;
}
bool vobsub_reader_c::parse_headers() {
int64_t pos;
void vobsub_reader_c::create_packetizers() {
uint32_t i, k;
int64_t avg_duration;
for (i = 0; i < tracks.size(); i++) {
if (!demuxing_requested('s', i))
continue;
ti->id = i;
// ti.language = tracks[i]->language;
tracks[i]->packetizer =
new vobsub_packetizer_c(this, idx_data.c_str(), idx_data.length(),
COMPRESSION_ZLIB, COMPRESSION_NONE, ti);
avg_duration = 0;
for (k = 0; k < (tracks[i]->timecodes.size() - 1); k++) {
tracks[i]->durations.push_back(tracks[i]->timecodes[k + 1] -
tracks[i]->timecodes[k]);
avg_duration += tracks[i]->timecodes[k + 1] - tracks[i]->timecodes[k];
}
if (tracks[i]->timecodes.size() == 0)
avg_duration = 1000;
else
avg_duration /= (tracks[i]->timecodes.size() - 1);
tracks[i]->durations.push_back(avg_duration);
if (verbose)
mxinfo("+-> Using VobSub subtitle output module for subtitle track "
"%u (language: %s).\n", i, tracks[i]->language);
}
}
void vobsub_reader_c::parse_headers() {
string line;
const char *sline;
char language[3];
vobsub_track_c *track, *last_track;
int64_t filepos, last_pos, timestamp;
int hour, minute, second, msecond, idx;
uint32_t i;
language[0] = 0;
track = NULL;
last_track = NULL;
last_pos = -1;
while (1) {
pos = idx_file->getFilePointer();
if (!idx_file->getline2(line))
return false;
break;
if ((line.length() == 0) || (line[0] == '#')) {
idx_data += line;
idx_data += "\n";
// idx_data += line;
// idx_data += "\n";
continue;
}
sline = line.c_str();
if (((version == 3) && isvobsubline_v3(sline)) ||
((version == 7) && isvobsubline_v7(sline))) {
idx_file->setFilePointer(pos);
return true;
if (!strncasecmp(sline, "id:", 3)) {
if (line.length() >= 6) {
language[0] = sline[4];
language[1] = sline[5];
language[2] = 0;
} else
language[0] = 0;
last_track = track;
track = new vobsub_track_c(language);
tracks.push_back(track);
continue;
}
if (!strncasecmp(sline, "alt:", 4))
continue;
if ((version == 7) && isvobsubline_v7(sline)) {
if (track == NULL)
mxerror(PFX ".idx file does not contain an 'id: ...' line to indicate "
"the language.\n");
idx = 34;
filepos = hexvalue(sline[idx]);
idx++;
while ((idx < line.length()) && ishexdigit(sline[idx])) {
filepos = filepos * 16 + hexvalue(sline[idx]);
idx++;
}
if (last_pos != -1) {
if (last_track != NULL) {
last_track->sizes.push_back(filepos - last_pos);
last_track = NULL;
} else
track->sizes.push_back(filepos - last_pos);
}
last_pos = filepos;
track->positions.push_back(filepos);
sscanf(&sline[11], "%02d:%02d:%02d:%03d", &hour, &minute, &second,
&msecond);
timestamp = (int64_t)hour * 60 * 60 * 1000 +
(int64_t)minute * 60 * 1000 + (int64_t)second * 1000 +
(int64_t)msecond;
track->timecodes.push_back(timestamp);
continue;
}
idx_data += line;
idx_data += "\n";
}
if ((last_pos != -1) && (track != NULL)) {
sub_file->setFilePointer(0, seek_end);
track->sizes.push_back(sub_file->getFilePointer() - last_pos);
sub_file->setFilePointer(0);
}
for (i = 0; i < tracks.size(); i++)
if ((tracks[i]->positions.size() != tracks[i]->timecodes.size()) ||
(tracks[i]->positions.size() != tracks[i]->sizes.size()))
mxerror(PFX "Have %u positions, %u sizes and %u timecodes. This should "
"not have happened. Please file a bug report.\n",
tracks[i]->positions.size(), tracks[i]->sizes.size(),
tracks[i]->timecodes.size());
}
int vobsub_reader_c::read(generic_packetizer_c *) {
string line;
const char *s;
int64_t filepos, timestamp;
int hour, minute, second, msecond, timestamp_offset, filepos_offset, idx;
unsigned char *buffer;
int size;
int vobsub_reader_c::read(generic_packetizer_c *ptzr) {
vobsub_track_c *track;
unsigned char *data;
uint32_t i, id;
if (done)
return 0;
if (!idx_file->getline2(line)) {
if (last_filepos != -1) {
sub_file->setFilePointer(0, seek_end);
size = sub_file->getFilePointer() - last_filepos;
sub_file->setFilePointer(last_filepos);
buffer = (unsigned char *)safemalloc(size);
if (sub_file->read(buffer, size) != size)
mxerror(PFX "Could not read %u bytes from the VobSub file.\n", size);
packetizer->process(buffer, size, last_timestamp, 1000);
safefree(buffer);
track = NULL;
for (i = 0; i < tracks.size(); i++)
if (tracks[i]->packetizer == ptzr) {
track = tracks[i];
break;
}
done = true;
if ((track == NULL) || (track->idx >= track->positions.size()))
return 0;
id = i;
i = track->idx;
sub_file->setFilePointer(track->positions[i]);
data = (unsigned char *)safemalloc(track->sizes[i]);
if (sub_file->read(data, track->sizes[i]) != track->sizes[i]) {
mxwarn(PFX "Could not read %lld bytes from the .sub file. Aborting.\n",
track->sizes[i]);
safefree(data);
return 0;
}
mxverb(2, PFX "track: %u, size: %lld, at: %lld, timecode: %lld, duration: "
"%lld\n", id, track->sizes[i], track->positions[i],
track->timecodes[i], track->durations[i]);
track->packetizer->process(data, track->sizes[i], track->timecodes[i],
track->durations[i]);
safefree(data);
track->idx++;
s = line.c_str();
if ((version == 3) && !isvobsubline_v3(s))
if (track->idx >= track->sizes.size())
return 0;
else
return EMOREDATA;
if ((version == 7) && !isvobsubline_v7(s))
return EMOREDATA;
if (version == 3) {
// timestamp: 00:01:43:603, filepos: 000000000
timestamp_offset = 11;
filepos_offset = 34;
} else if (version == 7) {
die(PFX "Version 7 has not been implemented yet.");
} else
die(PFX "Unknown version. Should not have happened.");
sscanf(&s[timestamp_offset], "%02d:%02d:%02d:%03d", &hour, &minute, &second,
&msecond);
timestamp = (int64_t)hour * 60 * 60 * 1000 +
(int64_t)minute * 60 * 1000 + (int64_t)second * 1000 + (int64_t)msecond;
idx = filepos_offset;
filepos = hexvalue(s[idx]);
idx++;
while ((idx < line.length()) && ishexdigit(s[idx])) {
filepos = filepos * 16 + hexvalue(s[idx]);
idx++;
}
mxverb(3, PFX "Timestamp: %lld, file pos: %lld\n", timestamp, filepos);
if (last_filepos == -1) {
last_filepos = filepos;
last_timestamp = timestamp;
return EMOREDATA;
}
// Now process the stuff...
sub_file->setFilePointer(last_filepos);
size = filepos - last_filepos;
buffer = (unsigned char *)safemalloc(size);
if (sub_file->read(buffer, size) != size)
mxerror(PFX "Could not read %u bytes from the VobSub file.\n", size);
packetizer->process(buffer, size, last_timestamp,
timestamp - last_timestamp);
safefree(buffer);
last_timestamp = timestamp;
last_filepos = filepos;
return EMOREDATA;
}
int vobsub_reader_c::display_priority() {
@ -309,10 +323,17 @@ void vobsub_reader_c::display_progress(bool final) {
}
void vobsub_reader_c::identify() {
uint32_t i;
mxinfo("File '%s': container: VobSub\n", ti->fname);
mxinfo("Track ID 0: subtitles (VobSub)\n");
for (i = 0; i < tracks.size(); i++)
mxinfo("Track ID %u: subtitles (VobSub)\n", i);
}
void vobsub_reader_c::set_headers() {
packetizer->set_headers();
uint32_t i;
for (i = 0; i < tracks.size(); i++)
if (tracks[i]->packetizer != NULL)
tracks[i]->packetizer->set_headers();
}

28
src/r_vobsub.h
View File

@ -30,6 +30,26 @@
#include "pr_generic.h"
#include "p_vobsub.h"
class vobsub_track_c {
public:
char *language;
vobsub_packetizer_c *packetizer;
vector<int64_t> positions, sizes, timecodes, durations;
int idx;
public:
vobsub_track_c(const char *new_language) {
language = safestrdup(new_language);
packetizer = NULL;
idx = 0;
};
~vobsub_track_c() {
safefree(language);
if (packetizer != NULL)
delete packetizer;
}
};
class vobsub_reader_c: public generic_reader_c {
private:
mm_io_c *sub_file;
@ -38,10 +58,7 @@ private:
int act_wchar, version, ifo_data_size;
string idx_data;
int64_t last_filepos, last_timestamp;
bool done;
vobsub_packetizer_c *packetizer;
vector<vobsub_track_c *> tracks;
public:
vobsub_reader_c(track_info_t *nti) throw (error_c);
@ -57,7 +74,8 @@ public:
static int probe_file(mm_io_c *mm_io, int64_t size);
protected:
virtual bool parse_headers();
virtual void parse_headers();
virtual void create_packetizers();
};
#endif // __R_VOBSUB_H