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/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#if defined(__MINGW32__) || defined(__CYGWIN__)
#include <windows.h>
#endif
#include "mp_msg.h"
#include "stream.h"
#include "m_option.h"
#include "m_struct.h"
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#if !defined(__MINGW32__) && !defined(__CYGWIN__)
#include <sys/ioctl.h>
#endif
#include <errno.h>
#include "talloc.h"
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__)
#include "vcd_read_fbsd.h"
#elif defined(__APPLE__)
#include "vcd_read_darwin.h"
#elif defined(__MINGW32__) || defined(__CYGWIN__)
#include "vcd_read_win32.h"
#else
#include "vcd_read.h"
#endif
#include "libmpdemux/demuxer.h"
extern char *cdrom_device;
static struct stream_priv_s {
int track;
char* device;
} stream_priv_dflts = {
1,
NULL
};
#define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
/// URL definition
static const m_option_t stream_opts_fields[] = {
{ "track", ST_OFF(track), CONF_TYPE_INT, M_OPT_MIN, 1, 0, NULL },
{ "device", ST_OFF(device), CONF_TYPE_STRING, 0, 0 ,0, NULL},
/// For url parsing
{ "hostname", ST_OFF(track), CONF_TYPE_INT, M_OPT_MIN, 1, 0, NULL },
{ "filename", ST_OFF(device), CONF_TYPE_STRING, 0, 0 ,0, NULL},
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static const struct m_struct_st stream_opts = {
"vcd",
sizeof(struct stream_priv_s),
&stream_priv_dflts,
stream_opts_fields
};
static int fill_buffer(stream_t *s, char* buffer, int max_len){
if(s->pos > s->end_pos) /// don't past end of current track
return 0;
return vcd_read(s->priv,buffer);
}
static int seek(stream_t *s,off_t newpos) {
s->pos = newpos;
vcd_set_msf(s->priv,s->pos/VCD_SECTOR_DATA);
return 1;
}
static int control(stream_t *stream, int cmd, void *arg) {
struct stream_priv_s *p = stream->priv;
switch(cmd) {
case STREAM_CTRL_GET_NUM_TITLES:
case STREAM_CTRL_GET_NUM_CHAPTERS:
{
mp_vcd_priv_t *vcd = vcd_read_toc(stream->fd);
if (!vcd)
break;
*(unsigned int *)arg = vcd_end_track(vcd);
return STREAM_OK;
}
case STREAM_CTRL_SEEK_TO_CHAPTER:
{
int r;
unsigned int track = *(unsigned int *)arg + 1;
mp_vcd_priv_t *vcd = vcd_read_toc(stream->fd);
if (!vcd)
break;
r = vcd_seek_to_track(vcd, track);
if (r >= 0) {
p->track = track;
return STREAM_OK;
}
break;
}
case STREAM_CTRL_GET_CURRENT_CHAPTER:
{
*(unsigned int *)arg = p->track - 1;
return STREAM_OK;
}
}
return STREAM_UNSUPPORTED;
}
static void close_s(stream_t *stream) {
free(stream->priv);
}
static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
struct stream_priv_s* p = opts;
int ret,ret2,f,sect,tmp;
mp_vcd_priv_t* vcd;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
int bsize = VCD_SECTOR_SIZE;
#endif
#if defined(__MINGW32__) || defined(__CYGWIN__)
HANDLE hd;
char device[] = "\\\\.\\?:";
#endif
if(mode != STREAM_READ
#if defined(__MINGW32__) || defined(__CYGWIN__)
|| GetVersion() > 0x80000000 // Win9x
#endif
) {
m_struct_free(&stream_opts,opts);
return STREAM_UNSUPPORTED;
}
if (!p->device) {
if(cdrom_device)
p->device = talloc_strdup(NULL, cdrom_device);
else
p->device = talloc_strdup(NULL, DEFAULT_CDROM_DEVICE);
}
#if defined(__MINGW32__) || defined(__CYGWIN__)
device[4] = p->device[0];
/* open() can't be used for devices so do it the complicated way */
hd = CreateFile(device, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
f = _open_osfhandle((long)hd, _O_RDONLY);
#else
f=open(p->device,O_RDONLY);
#endif
if(f<0){
mp_tmsg(MSGT_OPEN,MSGL_ERR,"CD-ROM Device '%s' not found.\n",p->device);
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
vcd = vcd_read_toc(f);
if(!vcd) {
mp_msg(MSGT_OPEN,MSGL_ERR,"Failed to get cd toc\n");
close(f);
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
ret2=vcd_get_track_end(vcd,p->track);
if(ret2<0){
mp_msg(MSGT_OPEN, MSGL_ERR, "%s (get)\n",
mp_gtext("Error selecting VCD track."));
close(f);
free(vcd);
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
ret=vcd_seek_to_track(vcd,p->track);
if(ret<0){
mp_msg(MSGT_OPEN, MSGL_ERR, "%s (seek)\n",
mp_gtext("Error selecting VCD track."));
close(f);
free(vcd);
m_struct_free(&stream_opts,opts);
return STREAM_ERROR;
}
/* search forward up to at most 3 seconds to skip leading margin */
sect = ret / VCD_SECTOR_DATA;
for (tmp = sect; tmp < sect + 3 * 75; tmp++) {
char mem[VCD_SECTOR_DATA];
//since MPEG packs are block-aligned we stop discarding sectors if they are non-null
if (vcd_read(vcd, mem) != VCD_SECTOR_DATA || mem[2] || mem[3])
break;
}
mp_msg(MSGT_OPEN, MSGL_DBG2, "%d leading sectors skipped\n", tmp - sect);
vcd_set_msf(vcd, tmp);
ret = tmp * VCD_SECTOR_DATA;
mp_msg(MSGT_OPEN,MSGL_V,"VCD start byte position: 0x%X end: 0x%X\n",ret,ret2);
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
if (ioctl (f, CDRIOCSETBLOCKSIZE, &bsize) == -1) {
mp_msg(MSGT_OPEN,MSGL_WARN,"Error in CDRIOCSETBLOCKSIZE");
}
#endif
stream->fd = f;
stream->type = STREAMTYPE_VCD;
stream->sector_size = VCD_SECTOR_DATA;
stream->start_pos=ret;
stream->end_pos=ret2;
stream->priv = vcd;
stream->fill_buffer = fill_buffer;
stream->seek = seek;
stream->control = control;
stream->close = close_s;
*file_format = DEMUXER_TYPE_MPEG_PS;
m_struct_free(&stream_opts,opts);
return STREAM_OK;
}
const stream_info_t stream_info_vcd = {
"Video CD",
"vcd",
"Albeu",
"based on the code from ???",
open_s,
{ "vcd", NULL },
&stream_opts,
1 // Urls are an option string
};
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