mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 06:42:03 +00:00
3efbc1a9a3
This causes the cache to be enabled with --cache=auto. It was not done previously because the small cache size 320k actually led to worse performance. However, with the current default cache size of 25000kb, caching notably improves performance.
147 lines
3.4 KiB
C
147 lines
3.4 KiB
C
/*
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* This file is part of MPlayer.
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*
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* Original author: M. Tourne
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <libsmbclient.h>
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#include <unistd.h>
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#include "common/msg.h"
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#include "stream.h"
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#include "options/m_option.h"
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struct priv {
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int fd;
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};
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static void smb_auth_fn(const char *server, const char *share,
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char *workgroup, int wgmaxlen, char *username, int unmaxlen,
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char *password, int pwmaxlen)
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{
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strncpy(workgroup, "LAN", wgmaxlen - 1);
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}
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static int control(stream_t *s, int cmd, void *arg) {
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struct priv *p = s->priv;
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switch(cmd) {
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case STREAM_CTRL_GET_SIZE: {
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off_t size = smbc_lseek(p->fd,0,SEEK_END);
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smbc_lseek(p->fd,s->pos,SEEK_SET);
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if(size != (off_t)-1) {
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*(int64_t *)arg = size;
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return 1;
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}
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}
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break;
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}
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return STREAM_UNSUPPORTED;
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}
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static int seek(stream_t *s,int64_t newpos) {
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struct priv *p = s->priv;
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if(smbc_lseek(p->fd,newpos,SEEK_SET)<0) {
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return 0;
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}
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return 1;
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}
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static int fill_buffer(stream_t *s, char* buffer, int max_len){
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struct priv *p = s->priv;
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int r = smbc_read(p->fd,buffer,max_len);
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return (r <= 0) ? -1 : r;
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}
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static int write_buffer(stream_t *s, char* buffer, int len) {
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struct priv *p = s->priv;
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int r;
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int wr = 0;
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while (wr < len) {
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r = smbc_write(p->fd,buffer,len);
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if (r <= 0)
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return -1;
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wr += r;
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buffer += r;
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}
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return len;
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}
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static void close_f(stream_t *s){
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struct priv *p = s->priv;
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smbc_close(p->fd);
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}
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static int open_f (stream_t *stream)
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{
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char *filename;
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int64_t len;
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int fd, err;
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struct priv *priv = talloc_zero(stream, struct priv);
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stream->priv = priv;
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filename = stream->url;
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bool write = stream->mode == STREAM_WRITE;
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mode_t m = write ? O_RDWR|O_CREAT|O_TRUNC : O_RDONLY;
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if(!filename) {
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MP_ERR(stream, "[smb] Bad url\n");
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return STREAM_ERROR;
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}
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err = smbc_init(smb_auth_fn, 1);
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if (err < 0) {
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MP_ERR(stream, "Cannot init the libsmbclient library: %d\n",err);
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return STREAM_ERROR;
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}
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fd = smbc_open(filename, m,0644);
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if (fd < 0) {
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MP_ERR(stream, "Could not open from LAN: '%s'\n", filename);
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return STREAM_ERROR;
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}
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len = 0;
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if(!write) {
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len = smbc_lseek(fd,0,SEEK_END);
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smbc_lseek (fd, 0, SEEK_SET);
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}
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if(len > 0 || write) {
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stream->seekable = true;
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stream->seek = seek;
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}
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priv->fd = fd;
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stream->fill_buffer = fill_buffer;
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stream->write_buffer = write_buffer;
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stream->close = close_f;
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stream->control = control;
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stream->read_chunk = 128 * 1024;
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stream->streaming = true;
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return STREAM_OK;
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}
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const stream_info_t stream_info_smb = {
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.name = "smb",
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.open = open_f,
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.protocols = (const char*const[]){"smb", NULL},
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.can_write = true, //who's gonna do that?
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};
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