/* * 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 #endif #include "mp_msg.h" #include "stream.h" #include "m_option.h" #include "m_struct.h" #include #include #include #if !defined(__MINGW32__) && !defined(__CYGWIN__) #include #endif #include #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 };