mpv/stream/stream_vstream.c

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/*
* Copyright (C) Joey Parrish
*
* 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.
*/
/*
* If you have a tivo with the vstream server installed, (and most tivo
* hackers do,) then you can connect to it and stream ty files using
* this module. The url syntax is tivo://host/fsid or tivo://host/list
* to list the available recordings and their fsid's.
* This module depends on libvstream-client, which is available from
* http://armory.nicewarrior.org/projects/vstream-client .
*
*/
#include "config.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <errno.h>
#include "mp_msg.h"
#include "stream.h"
#include "m_option.h"
#include "m_struct.h"
#include "tcp.h"
#include <vstream-client.h>
void vstream_error(const char *format, ...) {
char buf[1024];
va_list va;
va_start(va, format);
vsnprintf(buf, 1024, format, va);
va_end(va);
mp_msg(MSGT_STREAM, MSGL_ERR, buf);
}
static struct stream_priv_s {
char* host;
char* fsid;
} stream_priv_dflts = {
NULL,
NULL
};
#define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
/// URL definition
static const m_option_t stream_opts_fields[] = {
{"hostname", ST_OFF(host), CONF_TYPE_STRING, 0, 0 ,0, NULL},
{"filename", ST_OFF(fsid), CONF_TYPE_STRING, 0, 0 ,0, NULL},
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static const struct m_struct_st stream_opts = {
"vstream",
sizeof(struct stream_priv_s),
&stream_priv_dflts,
stream_opts_fields
};
static int fill_buffer(stream_t *s, char* buffer, int max_len){
struct stream_priv_s* p = (struct stream_priv_s*)s->priv;
int len = vstream_load_chunk(p->fsid, buffer, max_len, s->pos);
if (len <= 0) return 0;
return len;
}
static int seek(stream_t *s,off_t newpos) {
s->pos = newpos;
return 1;
}
static int control(struct stream *s, int cmd, void *arg) {
return STREAM_UNSUPPORTED;
}
static void close_s(struct stream *s) {
}
static int open_s(stream_t *stream, int mode, void* opts, int* file_format) {
int f;
struct stream_priv_s* p = (struct stream_priv_s*)opts;
if(mode != STREAM_READ)
return STREAM_UNSUPPORTED;
if(!p->host) {
mp_msg(MSGT_OPEN, MSGL_ERR, "We need a host name (ex: tivo://hostname/fsid)\n");
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
if(!p->fsid || strlen(p->fsid) == 0) {
mp_msg(MSGT_OPEN, MSGL_ERR, "We need an fsid (ex: tivo://hostname/fsid)\n");
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
f = connect2Server(p->host, VSERVER_PORT, 1);
if(f < 0) {
mp_msg(MSGT_OPEN, MSGL_ERR, "Connection to %s failed\n", p->host);
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
stream->fd = f;
vstream_set_socket_fd(f);
if (!strcmp(p->fsid, "list")) {
vstream_list_streams(0);
return STREAM_ERROR;
} else if (!strcmp(p->fsid, "llist")) {
vstream_list_streams(1);
return STREAM_ERROR;
}
if (vstream_start()) {
mp_msg(MSGT_OPEN, MSGL_ERR, "Cryptic internal error #1\n");
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
if (vstream_startstream(p->fsid)) {
mp_msg(MSGT_OPEN, MSGL_ERR, "Cryptic internal error #2\n");
m_struct_free(&stream_opts, opts);
return STREAM_ERROR;
}
stream->start_pos = 0;
stream->end_pos = vstream_streamsize();
mp_msg(MSGT_OPEN, MSGL_DBG2, "Tivo stream size is %d\n", stream->end_pos);
stream->priv = p;
stream->fill_buffer = fill_buffer;
stream->control = control;
stream->seek = seek;
stream->close = close_s;
stream->type = STREAMTYPE_VSTREAM;
return STREAM_OK;
}
const stream_info_t stream_info_vstream = {
"vstream client",
"vstream",
"Joey",
"",
open_s,
{ "tivo", NULL },
&stream_opts,
1 // Url is an option string
};