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cd1d63b19d
mpv/vobsub.c
arpi 28538fd920 When you called mplayer with the absolute path to the video and the VOBSUB 
subtitle is in a rar archive, mplayer tried to find the files in the archive
with the absolute path. The patch fixes the problem by getting rid of the
full path just trying the filename.
patch by Uwe.Reder@3SOFT.de


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8204 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-11-16 03:04:33 +00:00

1423 lines
36 KiB
C
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/*
* Some code freely inspired from VobSub <URL:http://vobsub.edensrising.com>,
* with kind permission from Gabest <gabest@freemail.hu>
*/
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "config.h"
#include "version.h"
#include "vobsub.h"
#include "libvo/video_out.h"
#include "spudec.h"
#include "mp_msg.h"
#ifdef USE_UNRARLIB
#include "unrarlib.h"
#endif
#define MIN(a, b) ((a)<(b)?(a):(b))
#define MAX(a, b) ((a)>(b)?(a):(b))
extern int vobsub_id;
/**********************************************************************
* RAR stream handling
* The RAR file must have the same basename as the file to open
* See <URL:http://www.unrarlib.org/>
**********************************************************************/
#ifdef USE_UNRARLIB
typedef struct {
FILE *file;
unsigned char *data;
unsigned long size;
unsigned long pos;
} rar_stream_t;
static rar_stream_t *
rar_open(const char *const filename, const char *const mode)
{
rar_stream_t *stream;
/* unrarlib can only read */
if (strcmp("r", mode) && strcmp("rb", mode)) {
errno = EINVAL;
return NULL;
}
stream = malloc(sizeof(rar_stream_t));
if (stream == NULL)
return NULL;
/* first try normal access */
stream->file = fopen(filename, mode);
if (stream->file == NULL) {
char *rar_filename;
char *p;
int rc;
/* Guess the RAR archive filename */
rar_filename = NULL;
p = strrchr(filename, '.');
if (p) {
ptrdiff_t l = p - filename;
rar_filename = malloc(l + 5);
if (rar_filename == NULL) {
free(stream);
return NULL;
}
strncpy(rar_filename, filename, l);
strcpy(rar_filename + l, ".rar");
}
else {
rar_filename = malloc(strlen(filename) + 5);
if (rar_filename == NULL) {
free(stream);
return NULL;
}
strcpy(rar_filename, filename);
strcat(rar_filename, ".rar");
}
/* get rid of the path if there is any */
if ((p = strrchr(filename, '/')) == NULL) {
p = filename;
} else {
p++;
}
rc = urarlib_get(&stream->data, &stream->size, (char*) p, rar_filename, "");
free(rar_filename);
if (!rc) {
free(stream);
return NULL;
}
stream->pos = 0;
}
return stream;
}
static int
rar_close(rar_stream_t *stream)
{
if (stream->file)
return fclose(stream->file);
free(stream->data);
return 0;
}
static int
rar_eof(rar_stream_t *stream)
{
if (stream->file)
return feof(stream->file);
return stream->pos >= stream->size;
}
static long
rar_tell(rar_stream_t *stream)
{
if (stream->file)
return ftell(stream->file);
return stream->pos;
}
static int
rar_seek(rar_stream_t *stream, long offset, int whence)
{
if (stream->file)
return fseek(stream->file, offset, whence);
switch (whence) {
case SEEK_SET:
if (offset < 0) {
errno = EINVAL;
return -1;
}
stream->pos = offset;
break;
case SEEK_CUR:
if (offset < 0 && stream->pos < (unsigned long) -offset) {
errno = EINVAL;
return -1;
}
stream->pos += offset;
break;
case SEEK_END:
if (offset < 0 && stream->size < (unsigned long) -offset) {
errno = EINVAL;
return -1;
}
stream->pos = stream->size + offset;
break;
default:
errno = EINVAL;
return -1;
}
return 0;
}
static int
rar_getc(rar_stream_t *stream)
{
if (stream->file)
return getc(stream->file);
if (rar_eof(stream))
return EOF;
return stream->data[stream->pos++];
}
static size_t
rar_read(void *ptr, size_t size, size_t nmemb, rar_stream_t *stream)
{
size_t res;
unsigned long remain;
if (stream->file)
return fread(ptr, size, nmemb, stream->file);
if (rar_eof(stream))
return 0;
res = size * nmemb;
remain = stream->size - stream->pos;
if (res > remain)
res = remain / size * size;
memcpy(ptr, stream->data + stream->pos, res);
stream->pos += res;
res /= size;
return res;
}
#else
typedef FILE rar_stream_t;
#define rar_open fopen
#define rar_close fclose
#define rar_eof feof
#define rar_tell ftell
#define rar_seek fseek
#define rar_getc getc
#define rar_read fread
#endif
/**********************************************************************/
static ssize_t
getline(char **lineptr, size_t *n, rar_stream_t *stream)
{
size_t res = 0;
int c;
if (*lineptr == NULL) {
*lineptr = malloc(4096);
if (*lineptr)
*n = 4096;
}
else if (*n == 0) {
char *tmp = realloc(*lineptr, 4096);
if (tmp) {
*lineptr = tmp;
*n = 4096;
}
}
if (*lineptr == NULL || *n == 0)
return -1;
for (c = rar_getc(stream); c != EOF; c = rar_getc(stream)) {
if (res + 1 >= *n) {
char *tmp = realloc(*lineptr, *n * 2);
if (tmp == NULL)
return -1;
*lineptr = tmp;
*n *= 2;
}
(*lineptr)[res++] = c;
if (c == '\n') {
(*lineptr)[res] = 0;
return res;
}
}
if (res == 0)
return -1;
(*lineptr)[res] = 0;
return res;
}
/**********************************************************************
* MPEG parsing
**********************************************************************/
typedef struct {
rar_stream_t *stream;
unsigned int pts;
int aid;
unsigned char *packet;
unsigned int packet_reserve;
unsigned int packet_size;
} mpeg_t;
static mpeg_t *
mpeg_open(const char *filename)
{
mpeg_t *res = malloc(sizeof(mpeg_t));
int err = res == NULL;
if (!err) {
res->pts = 0;
res->aid = -1;
res->packet = NULL;
res->packet_size = 0;
res->packet_reserve = 0;
res->stream = rar_open(filename, "r");
err = res->stream == NULL;
if (err)
perror("fopen Vobsub file failed");
if (err)
free(res);
}
return err ? NULL : res;
}
static void
mpeg_free(mpeg_t *mpeg)
{
if (mpeg->packet)
free(mpeg->packet);
if (mpeg->stream)
rar_close(mpeg->stream);
free(mpeg);
}
static int
mpeg_eof(mpeg_t *mpeg)
{
return rar_eof(mpeg->stream);
}
static off_t
mpeg_tell(mpeg_t *mpeg)
{
return rar_tell(mpeg->stream);
}
static int
mpeg_run(mpeg_t *mpeg)
{
unsigned int len, idx, version;
int c;
/* Goto start of a packet, it starts with 0x000001?? */
const unsigned char wanted[] = { 0, 0, 1 };
unsigned char buf[5];
mpeg->aid = -1;
mpeg->packet_size = 0;
if (rar_read(buf, 4, 1, mpeg->stream) != 1)
return -1;
while (memcmp(buf, wanted, sizeof(wanted)) != 0) {
c = rar_getc(mpeg->stream);
if (c < 0)
return -1;
memmove(buf, buf + 1, 3);
buf[3] = c;
}
switch (buf[3]) {
case 0xb9: /* System End Code */
break;
case 0xba: /* Packet start code */
c = rar_getc(mpeg->stream);
if (c < 0)
return -1;
if ((c & 0xc0) == 0x40)
version = 4;
else if ((c & 0xf0) == 0x20)
version = 2;
else {
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Unsupported MPEG version: 0x%02x", c);
return -1;
}
if (version == 4) {
if (rar_seek(mpeg->stream, 9, SEEK_CUR))
return -1;
}
else if (version == 2) {
if (rar_seek(mpeg->stream, 7, SEEK_CUR))
return -1;
}
else
abort();
break;
case 0xbd: /* packet */
if (rar_read(buf, 2, 1, mpeg->stream) != 1)
return -1;
len = buf[0] << 8 | buf[1];
idx = mpeg_tell(mpeg);
c = rar_getc(mpeg->stream);
if (c < 0)
return -1;
if ((c & 0xC0) == 0x40) { /* skip STD scale & size */
if (rar_getc(mpeg->stream) < 0)
return -1;
c = rar_getc(mpeg->stream);
if (c < 0)
return -1;
}
if ((c & 0xf0) == 0x20) { /* System-1 stream timestamp */
/* Do we need this? */
abort();
}
else if ((c & 0xf0) == 0x30) {
/* Do we need this? */
abort();
}
else if ((c & 0xc0) == 0x80) { /* System-2 (.VOB) stream */
unsigned int pts_flags, hdrlen, dataidx;
c = rar_getc(mpeg->stream);
if (c < 0)
return -1;
pts_flags = c;
c = rar_getc(mpeg->stream);
if (c < 0)
return -1;
hdrlen = c;
dataidx = mpeg_tell(mpeg) + hdrlen;
if (dataidx > idx + len) {
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Invalid header length: %d (total length: %d, idx: %d, dataidx: %d)\n",
hdrlen, len, idx, dataidx);
return -1;
}
if ((pts_flags & 0xc0) == 0x80) {
if (rar_read(buf, 5, 1, mpeg->stream) != 1)
return -1;
if (!(((buf[0] & 0xf0) == 0x20) && (buf[0] & 1) && (buf[2] & 1) && (buf[4] & 1))) {
mp_msg(MSGT_VOBSUB,MSGL_ERR, "vobsub PTS error: 0x%02x %02x%02x %02x%02x \n",
buf[0], buf[1], buf[2], buf[3], buf[4]);
mpeg->pts = 0;
}
else
mpeg->pts = ((buf[0] & 0x0e) << 29 | buf[1] << 22 | (buf[2] & 0xfe) << 14
| buf[3] << 7 | (buf[4] >> 1));
}
else /* if ((pts_flags & 0xc0) == 0xc0) */ {
/* what's this? */
/* abort(); */
}
rar_seek(mpeg->stream, dataidx, SEEK_SET);
mpeg->aid = rar_getc(mpeg->stream);
if (mpeg->aid < 0) {
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Bogus aid %d\n", mpeg->aid);
return -1;
}
mpeg->packet_size = len - ((unsigned int) mpeg_tell(mpeg) - idx);
if (mpeg->packet_reserve < mpeg->packet_size) {
if (mpeg->packet)
free(mpeg->packet);
mpeg->packet = malloc(mpeg->packet_size);
if (mpeg->packet)
mpeg->packet_reserve = mpeg->packet_size;
}
if (mpeg->packet == NULL) {
mp_msg(MSGT_VOBSUB,MSGL_FATAL,"malloc failure");
mpeg->packet_reserve = 0;
mpeg->packet_size = 0;
return -1;
}
if (rar_read(mpeg->packet, mpeg->packet_size, 1, mpeg->stream) != 1) {
mp_msg(MSGT_VOBSUB,MSGL_ERR,"fread failure");
mpeg->packet_size = 0;
return -1;
}
idx = len;
}
break;
case 0xbe: /* Padding */
if (rar_read(buf, 2, 1, mpeg->stream) != 1)
return -1;
len = buf[0] << 8 | buf[1];
if (len > 0 && rar_seek(mpeg->stream, len, SEEK_CUR))
return -1;
break;
default:
if (0xc0 <= buf[3] && buf[3] < 0xf0) {
/* MPEG audio or video */
if (rar_read(buf, 2, 1, mpeg->stream) != 1)
return -1;
len = buf[0] << 8 | buf[1];
if (len > 0 && rar_seek(mpeg->stream, len, SEEK_CUR))
return -1;
}
else {
mp_msg(MSGT_VOBSUB,MSGL_ERR,"unknown header 0x%02X%02X%02X%02X\n",
buf[0], buf[1], buf[2], buf[3]);
return -1;
}
}
return 0;
}
/**********************************************************************
* Packet queue
**********************************************************************/
typedef struct {
unsigned int pts100;
off_t filepos;
unsigned int size;
unsigned char *data;
} packet_t;
typedef struct {
char *id;
packet_t *packets;
unsigned int packets_reserve;
unsigned int packets_size;
unsigned int current_index;
} packet_queue_t;
static void
packet_construct(packet_t *pkt)
{
pkt->pts100 = 0;
pkt->filepos = 0;
pkt->size = 0;
pkt->data = NULL;
}
static void
packet_destroy(packet_t *pkt)
{
if (pkt->data)
free(pkt->data);
}
static void
packet_queue_construct(packet_queue_t *queue)
{
queue->id = NULL;
queue->packets = NULL;
queue->packets_reserve = 0;
queue->packets_size = 0;
queue->current_index = 0;
}
static void
packet_queue_destroy(packet_queue_t *queue)
{
if (queue->packets) {
while (queue->packets_size--)
packet_destroy(queue->packets + queue->packets_size);
free(queue->packets);
}
return;
}
/* Make sure there is enough room for needed_size packets in the
packet queue. */
static int
packet_queue_ensure(packet_queue_t *queue, unsigned int needed_size)
{
if (queue->packets_reserve < needed_size) {
if (queue->packets) {
packet_t *tmp = realloc(queue->packets, 2 * queue->packets_reserve * sizeof(packet_t));
if (tmp == NULL) {
mp_msg(MSGT_VOBSUB,MSGL_FATAL,"realloc failure");
return -1;
}
queue->packets = tmp;
queue->packets_reserve *= 2;
}
else {
queue->packets = malloc(sizeof(packet_t));
if (queue->packets == NULL) {
mp_msg(MSGT_VOBSUB,MSGL_FATAL,"malloc failure");
return -1;
}
queue->packets_reserve = 1;
}
}
return 0;
}
/* add one more packet */
static int
packet_queue_grow(packet_queue_t *queue)
{
if (packet_queue_ensure(queue, queue->packets_size + 1) < 0)
return -1;
packet_construct(queue->packets + queue->packets_size);
++queue->packets_size;
return 0;
}
/* insert a new packet, duplicating pts from the current one */
static int
packet_queue_insert(packet_queue_t *queue)
{
packet_t *pkts;
if (packet_queue_ensure(queue, queue->packets_size + 1) < 0)
return -1;
/* XXX packet_size does not reflect the real thing here, it will be updated a bit later */
memmove(queue->packets + queue->current_index + 2,
queue->packets + queue->current_index + 1,
sizeof(packet_t) * (queue->packets_size - queue->current_index - 1));
pkts = queue->packets + queue->current_index;
++queue->packets_size;
++queue->current_index;
packet_construct(pkts + 1);
pkts[1].pts100 = pkts[0].pts100;
pkts[1].filepos = pkts[0].filepos;
return 0;
}
/**********************************************************************
* Vobsub
**********************************************************************/
typedef struct {
unsigned int palette[16];
unsigned int cuspal[4];
int delay;
unsigned int custom;
unsigned int have_palette;
unsigned int orig_frame_width, orig_frame_height;
unsigned int origin_x, origin_y;
/* index */
packet_queue_t *spu_streams;
unsigned int spu_streams_size;
unsigned int spu_streams_current;
} vobsub_t;
/* Make sure that the spu stream idx exists. */
static int
vobsub_ensure_spu_stream(vobsub_t *vob, unsigned int index)
{
if (index >= vob->spu_streams_size) {
/* This is a new stream */
if (vob->spu_streams) {
packet_queue_t *tmp = realloc(vob->spu_streams, (index + 1) * sizeof(packet_queue_t));
if (tmp == NULL) {
mp_msg(MSGT_VOBSUB,MSGL_ERR,"vobsub_ensure_spu_stream: realloc failure");
return -1;
}
vob->spu_streams = tmp;
}
else {
vob->spu_streams = malloc((index + 1) * sizeof(packet_queue_t));
if (vob->spu_streams == NULL) {
mp_msg(MSGT_VOBSUB,MSGL_ERR,"vobsub_ensure_spu_stream: malloc failure");
return -1;
}
}
while (vob->spu_streams_size <= index) {
packet_queue_construct(vob->spu_streams + vob->spu_streams_size);
++vob->spu_streams_size;
}
}
return 0;
}
static int
vobsub_add_id(vobsub_t *vob, const char *id, size_t idlen, const unsigned int index)
{
if (vobsub_ensure_spu_stream(vob, index) < 0)
return -1;
if (id && idlen) {
if (vob->spu_streams[index].id)
free(vob->spu_streams[index].id);
vob->spu_streams[index].id = malloc(idlen + 1);
if (vob->spu_streams[index].id == NULL) {
mp_msg(MSGT_VOBSUB,MSGL_FATAL,"vobsub_add_id: malloc failure");
return -1;
}
vob->spu_streams[index].id[idlen] = 0;
memcpy(vob->spu_streams[index].id, id, idlen);
}
vob->spu_streams_current = index;
mp_msg(MSGT_VOBSUB,MSGL_V,"[vobsub] subtitle (vobsubid): %d language %s\n",
index, vob->spu_streams[index].id);
return 0;
}
static int
vobsub_add_timestamp(vobsub_t *vob, off_t filepos, int ms)
{
packet_queue_t *queue;
packet_t *pkt;
if (vob->spu_streams == 0) {
mp_msg(MSGT_VOBSUB,MSGL_WARN,"[vobsub] warning, binning some index entries. Check your index file\n");
return -1;
}
queue = vob->spu_streams + vob->spu_streams_current;
if (packet_queue_grow(queue) >= 0) {
pkt = queue->packets + (queue->packets_size - 1);
pkt->filepos = filepos;
pkt->pts100 = ms < 0 ? UINT_MAX : (unsigned int)ms * 90;
return 0;
}
return -1;
}
static int
vobsub_parse_id(vobsub_t *vob, const char *line)
{
// id: xx, index: n
size_t idlen;
const char *p, *q;
p = line;
while (isspace(*p))
++p;
q = p;
while (isalpha(*q))
++q;
idlen = q - p;
if (idlen == 0)
return -1;
++q;
while (isspace(*q))
++q;
if (strncmp("index:", q, 6))
return -1;
q += 6;
while (isspace(*q))
++q;
if (!isdigit(*q))
return -1;
return vobsub_add_id(vob, p, idlen, atoi(q));
}
static int
vobsub_parse_timestamp(vobsub_t *vob, const char *line)
{
// timestamp: HH:MM:SS.mmm, filepos: 0nnnnnnnnn
const char *p;
int h, m, s, ms;
off_t filepos;
while (isspace(*line))
++line;
p = line;
while (isdigit(*p))
++p;
if (p - line != 2)
return -1;
h = atoi(line);
if (*p != ':')
return -1;
line = ++p;
while (isdigit(*p))
++p;
if (p - line != 2)
return -1;
m = atoi(line);
if (*p != ':')
return -1;
line = ++p;
while (isdigit(*p))
++p;
if (p - line != 2)
return -1;
s = atoi(line);
if (*p != ':')
return -1;
line = ++p;
while (isdigit(*p))
++p;
if (p - line != 3)
return -1;
ms = atoi(line);
if (*p != ',')
return -1;
line = p + 1;
while (isspace(*line))
++line;
if (strncmp("filepos:", line, 8))
return -1;
line += 8;
while (isspace(*line))
++line;
if (! isxdigit(*line))
return -1;
filepos = strtol(line, NULL, 16);
return vobsub_add_timestamp(vob, filepos, vob->delay + ms + 1000 * (s + 60 * (m + 60 * h)));
}
static int
vobsub_parse_size(vobsub_t *vob, const char *line)
{
// size: WWWxHHH
char *p;
while (isspace(*line))
++line;
if (!isdigit(*line))
return -1;
vob->orig_frame_width = strtoul(line, &p, 10);
if (*p != 'x')
return -1;
++p;
vob->orig_frame_height = strtoul(p, NULL, 10);
return 0;
}
static int
vobsub_parse_origin(vobsub_t *vob, const char *line)
{
// org: X,Y
char *p;
while (isspace(*line))
++line;
if (!isdigit(*line))
return -1;
vob->origin_x = strtoul(line, &p, 10);
if (*p != ',')
return -1;
++p;
vob->origin_y = strtoul(p, NULL, 10);
return 0;
}
static int
vobsub_parse_palette(vobsub_t *vob, const char *line)
{
// palette: XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX, XXXXXX
unsigned int n;
n = 0;
while (1) {
const char *p;
int r, g, b, y, u, v, tmp;
while (isspace(*line))
++line;
p = line;
while (isxdigit(*p))
++p;
if (p - line != 6)
return -1;
tmp = strtoul(line, NULL, 16);
r = tmp >> 16 & 0xff;
g = tmp >> 8 & 0xff;
b = tmp & 0xff;
y = MIN(MAX((int)(0.1494 * r + 0.6061 * g + 0.2445 * b), 0), 0xff);
u = MIN(MAX((int)(0.6066 * r - 0.4322 * g - 0.1744 * b) + 128, 0), 0xff);
v = MIN(MAX((int)(-0.08435 * r - 0.3422 * g + 0.4266 * b) + 128, 0), 0xff);
vob->palette[n++] = y << 16 | u << 8 | v;
if (n == 16)
break;
if (*p == ',')
++p;
line = p;
}
vob->have_palette = 1;
return 0;
}
static int
vobsub_parse_custom(vobsub_t *vob, const char *line)
{
//custom colors: OFF/ON(0/1)
if ((strncmp("ON", line + 15, 2) == 0)||strncmp("1", line + 15, 1) == 0)
vob->custom=1;
else if ((strncmp("OFF", line + 15, 3) == 0)||strncmp("0", line + 15, 1) == 0)
vob->custom=0;
else
return -1;
return 0;
}
static int
vobsub_parse_cuspal(vobsub_t *vob, const char *line)
{
//colors: XXXXXX, XXXXXX, XXXXXX, XXXXXX
unsigned int n;
n = 0;
line += 40;
while(1){
const char *p;
while (isspace(*line))
++line;
p=line;
while (isxdigit(*p))
++p;
if (p - line !=6)
return -1;
vob->cuspal[n++] = strtoul(line, NULL,16);
if (n==4)
break;
if(*p == ',')
++p;
line = p;
}
return 0;
}
/* don't know how to use tridx */
static int
vobsub_parse_tridx(const char *line)
{
//tridx: XXXX
int tridx;
tridx = strtoul((line + 26), NULL, 16);
tridx = ((tridx&0x1000)>>12) | ((tridx&0x100)>>7) | ((tridx&0x10)>>2) | ((tridx&1)<<3);
return tridx;
}
static int
vobsub_parse_delay(vobsub_t *vob, const char *line)
{
int h, m, s, ms;
int forward = 1;
if (*(line + 7) == '+'){
forward = 1;
line++;
}
else if (*(line + 7) == '-'){
forward = -1;
line++;
}
mp_msg(MSGT_SPUDEC,MSGL_V, "forward=%d", forward);
h = atoi(line + 7);
mp_msg(MSGT_VOBSUB,MSGL_V, "h=%d," ,h);
m = atoi(line + 10);
mp_msg(MSGT_VOBSUB,MSGL_V, "m=%d,", m);
s = atoi(line + 13);
mp_msg(MSGT_VOBSUB,MSGL_V, "s=%d,", s);
ms = atoi(line + 16);
mp_msg(MSGT_VOBSUB,MSGL_V, "ms=%d", ms);
vob->delay = (ms + 1000 * (s + 60 * (m + 60 * h))) * forward;
return 0;
}
static int
vobsub_set_lang(const char *line)
{
if (vobsub_id == -1)
vobsub_id = atoi(line + 8);
return 0;
}
static int
vobsub_parse_one_line(vobsub_t *vob, rar_stream_t *fd)
{
ssize_t line_size;
int res = -1;
do {
size_t line_reserve = 0;
char *line = NULL;
line_size = getline(&line, &line_reserve, fd);
if (line_size < 0) {
if (line)
free(line);
break;
}
if (*line == 0 || *line == '\r' || *line == '\n' || *line == '#')
continue;
else if (strncmp("langidx:", line, 8) == 0)
res = vobsub_set_lang(line);
else if (strncmp("delay:", line, 6) == 0)
res = vobsub_parse_delay(vob, line);
else if (strncmp("id:", line, 3) == 0)
res = vobsub_parse_id(vob, line + 3);
else if (strncmp("palette:", line, 8) == 0)
res = vobsub_parse_palette(vob, line + 8);
else if (strncmp("size:", line, 5) == 0)
res = vobsub_parse_size(vob, line + 5);
else if (strncmp("org:", line, 4) == 0)
res = vobsub_parse_origin(vob, line + 4);
else if (strncmp("timestamp:", line, 10) == 0)
res = vobsub_parse_timestamp(vob, line + 10);
else if (strncmp("custom colors:", line, 14) == 0)
//custom colors: ON/OFF, tridx: XXXX, colors: XXXXXX, XXXXXX, XXXXXX,XXXXXX
res = vobsub_parse_cuspal(vob, line) + vobsub_parse_tridx(line) + vobsub_parse_custom(vob, line);
else {
mp_msg(MSGT_VOBSUB,MSGL_V, "vobsub: ignoring %s", line);
continue;
}
if (res < 0)
mp_msg(MSGT_VOBSUB,MSGL_ERR, "ERROR in %s", line);
break;
} while (1);
return res;
}
int
vobsub_parse_ifo(void* this, const char *const name, unsigned int *palette, unsigned int *width, unsigned int *height, int force,
int sid, char *langid)
{
vobsub_t *vob = (vobsub_t*)this;
int res = -1;
rar_stream_t *fd = rar_open(name, "rb");
if (fd == NULL) {
if (force)
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Can't open IFO file");
} else {
// parse IFO header
unsigned char block[0x800];
const char *const ifo_magic = "DVDVIDEO-VTS";
if (rar_read(block, sizeof(block), 1, fd) != 1) {
if (force)
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Can't read IFO header");
} else if (memcmp(block, ifo_magic, strlen(ifo_magic) + 1))
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Bad magic in IFO header\n");
else {
unsigned long pgci_sector = block[0xcc] << 24 | block[0xcd] << 16
| block[0xce] << 8 | block[0xcf];
int standard = (block[0x200] & 0x30) >> 4;
int resolution = (block[0x201] & 0x0c) >> 2;
*height = standard ? 576 : 480;
*width = 0;
switch (resolution) {
case 0x0:
*width = 720;
break;
case 0x1:
*width = 704;
break;
case 0x2:
*width = 352;
break;
case 0x3:
*width = 352;
*height /= 2;
break;
default:
mp_msg(MSGT_VOBSUB,MSGL_WARN,"Vobsub: Unknown resolution %d \n", resolution);
}
if (langid && 0 <= sid && sid < 32) {
unsigned char *tmp = block + 0x256 + sid * 6 + 2;
langid[0] = tmp[0];
langid[1] = tmp[1];
langid[2] = 0;
}
if (rar_seek(fd, pgci_sector * sizeof(block), SEEK_SET)
|| rar_read(block, sizeof(block), 1, fd) != 1)
mp_msg(MSGT_VOBSUB,MSGL_ERR, "Can't read IFO PGCI");
else {
unsigned long idx;
unsigned long pgc_offset = block[0xc] << 24 | block[0xd] << 16
| block[0xe] << 8 | block[0xf];
for (idx = 0; idx < 16; ++idx) {
unsigned char *p = block + pgc_offset + 0xa4 + 4 * idx;
palette[idx] = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
}
if(vob)
vob->have_palette = 1;
res = 0;
}
}
rar_close(fd);
}
return res;
}
void *
vobsub_open(const char *const name,const char *const ifo,const int force,void** spu)
{
vobsub_t *vob = malloc(sizeof(vobsub_t));
if(spu)
*spu = NULL;
if (vob) {
char *buf;
vob->custom = 0;
vob->have_palette = 0;
vob->orig_frame_width = 0;
vob->orig_frame_height = 0;
vob->spu_streams = NULL;
vob->spu_streams_size = 0;
vob->spu_streams_current = 0;
vob->delay = 0;
buf = malloc((strlen(name) + 5) * sizeof(char));
if (buf) {
rar_stream_t *fd;
mpeg_t *mpg;
/* read in the info file */
if(!ifo) {
strcpy(buf, name);
strcat(buf, ".ifo");
vobsub_parse_ifo(vob,buf, vob->palette, &vob->orig_frame_width, &vob->orig_frame_height, force, -1, NULL);
} else
vobsub_parse_ifo(vob,ifo, vob->palette, &vob->orig_frame_width, &vob->orig_frame_height, force, -1, NULL);
/* read in the index */
strcpy(buf, name);
strcat(buf, ".idx");
fd = rar_open(buf, "rb");
if (fd == NULL) {
if(force)
mp_msg(MSGT_VOBSUB,MSGL_ERR,"VobSub: Can't open IDX file");
else {
free(buf);
free(vob);
return NULL;
}
} else {
while (vobsub_parse_one_line(vob, fd) >= 0)
/* NOOP */ ;
rar_close(fd);
}
/* if no palette in .idx then use custom colors */
if ((vob->custom == 0)&&(vob->have_palette!=1))
vob->custom = 1;
if (spu && vob->orig_frame_width && vob->orig_frame_height)
*spu = spudec_new_scaled_vobsub(vob->palette, vob->cuspal, vob->custom, vob->orig_frame_width, vob->orig_frame_height);
/* read the indexed mpeg_stream */
strcpy(buf, name);
strcat(buf, ".sub");
mpg = mpeg_open(buf);
if (mpg == NULL) {
if(force)
mp_msg(MSGT_VOBSUB,MSGL_ERR,"VobSub: Can't open SUB file");
else {
free(buf);
free(vob);
return NULL;
}
} else {
long last_pts_diff = 0;
while (!mpeg_eof(mpg)) {
off_t pos = mpeg_tell(mpg);
if (mpeg_run(mpg) < 0) {
if (!mpeg_eof(mpg))
mp_msg(MSGT_VOBSUB,MSGL_ERR,"mpeg_run error");
break;
}
if (mpg->packet_size) {
if ((mpg->aid & 0xe0) == 0x20) {
unsigned int sid = mpg->aid & 0x1f;
if (vobsub_ensure_spu_stream(vob, sid) >= 0) {
packet_queue_t *queue = vob->spu_streams + sid;
/* get the packet to fill */
if (queue->packets_size == 0 && packet_queue_grow(queue) < 0)
abort();
while (queue->current_index + 1 < queue->packets_size
&& queue->packets[queue->current_index + 1].filepos <= pos)
++queue->current_index;
if (queue->current_index < queue->packets_size) {
packet_t *pkt;
if (queue->packets[queue->current_index].data) {
/* insert a new packet and fix the PTS ! */
packet_queue_insert(queue);
queue->packets[queue->current_index].pts100 =
mpg->pts + last_pts_diff;
}
pkt = queue->packets + queue->current_index;
if (pkt->pts100 != UINT_MAX) {
if (queue->packets_size > 1)
last_pts_diff = pkt->pts100 - mpg->pts;
else
pkt->pts100 = mpg->pts;
/* FIXME: should not use mpg_sub internal informations, make a copy */
pkt->data = mpg->packet;
pkt->size = mpg->packet_size;
mpg->packet = NULL;
mpg->packet_reserve = 0;
mpg->packet_size = 0;
}
}
}
else
mp_msg(MSGT_VOBSUB,MSGL_WARN, "don't know what to do with subtitle #%u\n", sid);
}
}
}
vob->spu_streams_current = vob->spu_streams_size;
while (vob->spu_streams_current-- > 0)
vob->spu_streams[vob->spu_streams_current].current_index = 0;
mpeg_free(mpg);
}
free(buf);
}
}
return vob;
}
void
vobsub_close(void *this)
{
vobsub_t *vob = (vobsub_t *)this;
if (vob->spu_streams) {
while (vob->spu_streams_size--)
packet_queue_destroy(vob->spu_streams + vob->spu_streams_size);
free(vob->spu_streams);
}
free(vob);
}
unsigned int
vobsub_get_indexes_count(void *vobhandle)
{
vobsub_t *vob = (vobsub_t *) vobhandle;
return vob->spu_streams_size;
}
char *
vobsub_get_id(void *vobhandle, unsigned int index)
{
vobsub_t *vob = (vobsub_t *) vobhandle;
return (index < vob->spu_streams_size) ? vob->spu_streams[index].id : NULL;
}
int
vobsub_get_packet(void *vobhandle, float pts,void** data, int* timestamp) {
vobsub_t *vob = (vobsub_t *)vobhandle;
unsigned int pts100 = 90000 * pts;
if (vob->spu_streams && 0 <= vobsub_id && (unsigned) vobsub_id < vob->spu_streams_size) {
packet_queue_t *queue = vob->spu_streams + vobsub_id;
while (queue->current_index < queue->packets_size) {
packet_t *pkt = queue->packets + queue->current_index;
if (pkt->pts100 != UINT_MAX)
if (pkt->pts100 <= pts100) {
++queue->current_index;
*data = pkt->data;
*timestamp = pkt->pts100;
return pkt->size;
} else break;
else
++queue->current_index;
}
}
return -1;
}
int
vobsub_get_next_packet(void *vobhandle, void** data, int* timestamp)
{
vobsub_t *vob = (vobsub_t *)vobhandle;
if (vob->spu_streams && 0 <= vobsub_id && (unsigned) vobsub_id < vob->spu_streams_size) {
packet_queue_t *queue = vob->spu_streams + vobsub_id;
if (queue->current_index < queue->packets_size) {
packet_t *pkt = queue->packets + queue->current_index;
++queue->current_index;
*data = pkt->data;
*timestamp = pkt->pts100;
return pkt->size;
}
}
return -1;
}
void
vobsub_reset(void *vobhandle)
{
vobsub_t *vob = (vobsub_t *)vobhandle;
if (vob->spu_streams) {
unsigned int n = vob->spu_streams_size;
while (n-- > 0)
vob->spu_streams[n].current_index = 0;
}
}
/**********************************************************************
* Vobsub output
**********************************************************************/
typedef struct {
FILE *fsub;
FILE *fidx;
unsigned int aid;
} vobsub_out_t;
static void
create_idx(vobsub_out_t *me, const unsigned int *palette, unsigned int orig_width, unsigned int orig_height)
{
int i;
fprintf(me->fidx,
"# VobSub index file, v7 (do not modify this line!)\n"
"#\n"
"# Generated by MPlayer " VERSION "\n"
"# See <URL:http://www.mplayerhq.hu/> for more information about MPlayer\n"
"# See <URL:http://vobsub.edensrising.com/> for more information about Vobsub\n"
"#\n"
"size: %ux%u\n",
orig_width, orig_height);
if (palette) {
fputs("palette:", me->fidx);
for (i = 0; i < 16; ++i) {
const double y = palette[i] >> 16 & 0xff,
u = (palette[i] >> 8 & 0xff) - 128.0,
v = (palette[i] & 0xff) - 128.0;
if (i)
putc(',', me->fidx);
fprintf(me->fidx, " %02x%02x%02x",
MIN(MAX((int)(y + 1.4022 * u), 0), 0xff),
MIN(MAX((int)(y - 0.3456 * u - 0.7145 * v), 0), 0xff),
MIN(MAX((int)(y + 1.7710 * v), 0), 0xff));
}
putc('\n', me->fidx);
}
}
void *
vobsub_out_open(const char *basename, const unsigned int *palette,
unsigned int orig_width, unsigned int orig_height,
const char *id, unsigned int index)
{
vobsub_out_t *result = NULL;
char *filename;
filename = malloc(strlen(basename) + 5);
if (filename) {
result = malloc(sizeof(vobsub_out_t));
result->fsub = NULL;
result->fidx = NULL;
result->aid = 0;
if (result) {
result->aid = index;
strcpy(filename, basename);
strcat(filename, ".sub");
result->fsub = fopen(filename, "a");
if (result->fsub == NULL)
perror("Error: vobsub_out_open subtitle file open failed");
strcpy(filename, basename);
strcat(filename, ".idx");
result->fidx = fopen(filename, "a");
if (result->fidx) {
if (ftell(result->fidx) == 0){
create_idx(result, palette, orig_width, orig_height);
/* Make the selected language the default language */
fprintf(result->fidx, "\n# Language index in use\nlangidx: %u\n", index);
}
fprintf(result->fidx, "\nid: %s, index: %u\n", id ? id : "xx", index);
/* So that we can check the file now */
fflush(result->fidx);
}
else
perror("Error: vobsub_out_open index file open failed");
free(filename);
}
}
return result;
}
void
vobsub_out_close(void *me)
{
vobsub_out_t *vob = (vobsub_out_t*)me;
if (vob->fidx)
fclose(vob->fidx);
if (vob->fsub)
fclose(vob->fsub);
free(vob);
}
void
vobsub_out_output(void *me, const unsigned char *packet, int len, double pts)
{
static double last_pts;
static int last_pts_set = 0;
vobsub_out_t *vob = (vobsub_out_t*)me;
if (vob->fsub) {
/* Windows' Vobsub require that every packet is exactly 2kB long */
unsigned char buffer[2048];
unsigned char *p;
int remain = 2048;
/* Do not output twice a line with the same timestamp, this
breaks Windows' Vobsub */
if (vob->fidx && (!last_pts_set || last_pts != pts)) {
static unsigned int last_h = 9999, last_m = 9999, last_s = 9999, last_ms = 9999;
unsigned int h, m, ms;
double s;
s = pts;
h = s / 3600;
s -= h * 3600;
m = s / 60;
s -= m * 60;
ms = (s - (unsigned int) s) * 1000;
if (ms >= 1000) /* prevent overfolws or bad float stuff */
ms = 0;
if (h != last_h || m != last_m || (unsigned int) s != last_s || ms != last_ms) {
fprintf(vob->fidx, "timestamp: %02u:%02u:%02u:%03u, filepos: %09lx\n",
h, m, (unsigned int) s, ms, ftell(vob->fsub));
last_h = h;
last_m = m;
last_s = (unsigned int) s;
last_ms = ms;
}
}
last_pts = pts;
last_pts_set = 1;
/* Packet start code: Windows' Vobsub needs this */
p = buffer;
*p++ = 0; /* 0x00 */
*p++ = 0;
*p++ = 1;
*p++ = 0xba;
*p++ = 0x40;
memset(p, 0, 9);
p += 9;
{ /* Packet */
static unsigned char last_pts[5] = { 0, 0, 0, 0, 0};
unsigned char now_pts[5];
int pts_len, pad_len, datalen = len;
pts *= 90000;
now_pts[0] = 0x21 | (((unsigned long)pts >> 29) & 0x0e);
now_pts[1] = ((unsigned long)pts >> 22) & 0xff;
now_pts[2] = 0x01 | (((unsigned long)pts >> 14) & 0xfe);
now_pts[3] = ((unsigned long)pts >> 7) & 0xff;
now_pts[4] = 0x01 | (((unsigned long)pts << 1) & 0xfe);
pts_len = memcmp(last_pts, now_pts, sizeof(now_pts)) ? sizeof(now_pts) : 0;
memcpy(last_pts, now_pts, sizeof(now_pts));
datalen += 3; /* Version, PTS_flags, pts_len */
datalen += pts_len;
datalen += 1; /* AID */
pad_len = 2048 - (p - buffer) - 4 /* MPEG ID */ - 2 /* payload len */ - datalen;
/* XXX - Go figure what should go here! In any case the
packet has to be completly filled. If I can fill it
with padding (0x000001be) latter I'll do that. But if
there is only room for 6 bytes then I can not write a
padding packet. So I add some padding in the PTS
field. This looks like a dirty kludge. Oh well... */
if (pad_len < 0) {
/* Packet is too big. Let's try ommiting the PTS field */
datalen -= pts_len;
pts_len = 0;
pad_len = 0;
}
else if (pad_len > 6)
pad_len = 0;
datalen += pad_len;
*p++ = 0; /* 0x0e */
*p++ = 0;
*p++ = 1;
*p++ = 0xbd;
*p++ = (datalen >> 8) & 0xff; /* length of payload */
*p++ = datalen & 0xff;
*p++ = 0x80; /* System-2 (.VOB) stream */
*p++ = pts_len ? 0x80 : 0x00; /* pts_flags */
*p++ = pts_len + pad_len;
memcpy(p, now_pts, pts_len);
p += pts_len;
memset(p, 0, pad_len);
p += pad_len;
}
*p++ = 0x20 | vob->aid; /* aid */
if (fwrite(buffer, p - buffer, 1, vob->fsub) != 1
|| fwrite(packet, len, 1, vob->fsub) != 1)
perror("ERROR: vobsub write failed");
else
remain -= p - buffer + len;
/* Padding */
if (remain >= 6) {
p = buffer;
*p++ = 0x00;
*p++ = 0x00;
*p++ = 0x01;
*p++ = 0xbe;
*p++ = (remain - 6) >> 8;
*p++ = (remain - 6) & 0xff;
/* for better compression, blank this */
memset(buffer + 6, 0, remain - (p - buffer));
if (fwrite(buffer, remain, 1, vob->fsub) != 1)
perror("ERROR: vobsub padding write failed");
}
else if (remain > 0) {
/* I don't know what to output. But anyway the block
needs to be 2KB big */
memset(buffer, 0, remain);
if (fwrite(buffer, remain, 1, vob->fsub) != 1)
perror("ERROR: vobsub blank padding write failed");
}
else if (remain < 0)
fprintf(stderr,
"\nERROR: wrong thing happenned...\n"
" I wrote a %i data bytes spu packet and that's too long\n", len);
}
}
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