RepoMirrors/mpv
1
0
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2024-12-14 02:45:43 +00:00
Code Issues Releases Wiki Activity
77b430d1ad
mpv/vobsub.c
albeu 7562937d95 Improvment for spu subtitles. 
Removed the integreted spudec in vobsub.
Various cleanup/bugfix in vobsub (no more auto palette when a true one is
here)
HW spu rendering moved in spudec because we first need to reassable the
packet before sending them to the hw.
Spudec is now created only if nedded.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6111 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-05-17 23:47:27 +00:00

986 lines
24 KiB
C
Raw Blame History

/*
* Some code freely inspired from VobSub <URL:http://vobsub.edensrising.com>,
* with kind permission from Gabest <gabest@freemail.hu>
*/
/* #define HAVE_GETLINE */
#include <ctype.h>
#include <errno.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 "stream.h"
#include "vobsub.h"
#include "libvo/video_out.h"
#include "spudec.h"
#include "mp_msg.h"
extern int vobsub_id;
extern int verbose;
#ifdef HAVE_GETLINE
extern ssize_t getline(char **, size_t *, FILE *);
#else
/* FIXME This should go into a general purpose library or even a
separate file. */
static ssize_t
getline (char **lineptr, size_t *n, FILE *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 = fgetc(stream); c != EOF; c = fgetc(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;
}
#endif
/**********************************************************************
* MPEG parsing
**********************************************************************/
typedef struct {
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) {
int fd;
res->pts = 0;
res->aid = -1;
res->packet = NULL;
res->packet_size = 0;
res->packet_reserve = 0;
fd = open(filename, O_RDONLY);
err = fd < 0;
if (!err) {
res->stream = new_stream(fd, STREAMTYPE_FILE);
err = res->stream == NULL;
if (err)
close(fd);
}
if (err)
free(res);
}
return err ? NULL : res;
}
static void
mpeg_free(mpeg_t *mpeg)
{
int fd;
if (mpeg->packet)
free(mpeg->packet);
fd = mpeg->stream->fd;
free_stream(mpeg->stream);
close(fd);
free(mpeg);
}
static int
mpeg_eof(mpeg_t *mpeg)
{
return stream_eof(mpeg->stream);
}
static off_t
mpeg_tell(mpeg_t *mpeg)
{
return stream_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 (stream_read(mpeg->stream, buf, 4) != 4)
return -1;
while (memcmp(buf, wanted, sizeof(wanted)) != 0) {
c = stream_read_char(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 = stream_read_char(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 (!stream_skip(mpeg->stream, 9))
return -1;
}
else if (version == 2) {
if (!stream_skip(mpeg->stream, 7))
return -1;
}
else
abort();
break;
case 0xbd: /* packet */
if (stream_read(mpeg->stream, buf, 2) != 2)
return -1;
len = buf[0] << 8 | buf[1];
idx = mpeg_tell(mpeg);
c = stream_read_char(mpeg->stream);
if (c < 0)
return -1;
if ((c & 0xC0) == 0x40) { /* skip STD scale & size */
if (stream_read_char(mpeg->stream) < 0)
return -1;
c = stream_read_char(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 = stream_read_char(mpeg->stream);
if (c < 0)
return -1;
pts_flags = c;
c = stream_read_char(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 (stream_read(mpeg->stream, buf, 5) != 5)
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)) / 900;
}
else /* if ((pts_flags & 0xc0) == 0xc0) */ {
/* what's this? */
/* abort(); */
}
stream_seek(mpeg->stream, dataidx);
mpeg->aid = stream_read_char(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 ((unsigned int)stream_read(mpeg->stream, mpeg->packet, mpeg->packet_size) != mpeg->packet_size) {
mp_msg(MSGT_VOBSUB,MSGL_ERR,"stream_read failure");
mpeg->packet_size = 0;
return -1;
}
idx = len;
}
break;
case 0xbe: /* Padding */
if (stream_read(mpeg->stream, buf, 2) != 2)
return -1;
len = buf[0] << 8 | buf[1];
if (len > 0 && !stream_skip(mpeg->stream, len))
return -1;
break;
default:
if (0xc0 <= buf[3] && buf[3] < 0xf0) {
/* MPEG audio or video */
if (stream_read(mpeg->stream, buf, 2) != 2)
return -1;
len = buf[0] << 8 | buf[1];
if (len > 0 && !stream_skip(mpeg->stream, len))
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;
}
/**********************************************************************
* Vosub
**********************************************************************/
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;
if (verbose)
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, unsigned 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 * 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;
while (isspace(*line))
++line;
p = line;
while (isxdigit(*p))
++p;
if (p - line != 6)
return -1;
vob->palette[n++] = strtoul(line, NULL, 16);
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, FILE *fd)
{
ssize_t line_size;
int res = -1;
do {
int 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 {
if (verbose)
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)
{
vobsub_t *vob = (vobsub_t*)this;
int res = -1;
FILE *fd = fopen(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 (fread(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 (fseek(fd, pgci_sector * sizeof(block), SEEK_SET)
|| fread(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;
}
}
fclose(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->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) {
FILE *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);
} else
vobsub_parse_ifo(vob,ifo, vob->palette, &vob->orig_frame_width, &vob->orig_frame_height, force);
/* read in the index */
strcpy(buf, name);
strcat(buf, ".idx");
fd = fopen(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 */ ;
fclose(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;
last_pts_diff = 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);
}
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 <= pts100) {
++queue->current_index;
*data = pkt->data;
*timestamp = pkt->pts100;
return pkt->size;
} else break;
}
}
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;
}
}
Reference in New Issue View Git Blame Copy Permalink