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mpv/stream/stream.c

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifndef __MINGW32__
#include <sys/ioctl.h>
#include <sys/wait.h>
#endif
#include <fcntl.h>
#include <strings.h>
#include "config.h"
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#include "mp_msg.h"
#include "help_mp.h"
#include "osdep/shmem.h"
#include "network.h"
#include "stream.h"
#include "libmpdemux/demuxer.h"
#include "m_option.h"
#include "m_struct.h"
#include "cache2.h"
//#include "vcd_read_bincue.h"
struct input_ctx;
static int (*stream_check_interrupt_cb)(struct input_ctx *ctx, int time);
static struct input_ctx *stream_check_interrupt_ctx;
extern const stream_info_t stream_info_vcd;
extern const stream_info_t stream_info_cdda;
extern const stream_info_t stream_info_netstream;
extern const stream_info_t stream_info_pnm;
extern const stream_info_t stream_info_asf;
extern const stream_info_t stream_info_rtsp;
extern const stream_info_t stream_info_rtp;
extern const stream_info_t stream_info_udp;
extern const stream_info_t stream_info_http1;
extern const stream_info_t stream_info_http2;
extern const stream_info_t stream_info_dvb;
extern const stream_info_t stream_info_tv;
extern const stream_info_t stream_info_radio;
extern const stream_info_t stream_info_pvr;
extern const stream_info_t stream_info_ftp;
extern const stream_info_t stream_info_vstream;
extern const stream_info_t stream_info_dvdnav;
extern const stream_info_t stream_info_smb;
extern const stream_info_t stream_info_sdp;
extern const stream_info_t stream_info_rtsp_sip;
extern const stream_info_t stream_info_cue;
extern const stream_info_t stream_info_null;
extern const stream_info_t stream_info_mf;
extern const stream_info_t stream_info_file;
extern const stream_info_t stream_info_ifo;
extern const stream_info_t stream_info_dvd;
static const stream_info_t* const auto_open_streams[] = {
#ifdef CONFIG_VCD
&stream_info_vcd,
#endif
#ifdef CONFIG_CDDA
&stream_info_cdda,
#endif
#ifdef CONFIG_NETWORK
&stream_info_netstream,
&stream_info_http1,
&stream_info_asf,
&stream_info_pnm,
&stream_info_rtsp,
#ifdef CONFIG_LIVE555
&stream_info_sdp,
&stream_info_rtsp_sip,
#endif
&stream_info_rtp,
&stream_info_udp,
&stream_info_http2,
#endif
#ifdef CONFIG_DVBIN
&stream_info_dvb,
#endif
#ifdef CONFIG_TV
&stream_info_tv,
#endif
#ifdef CONFIG_RADIO
&stream_info_radio,
#endif
#ifdef CONFIG_PVR
&stream_info_pvr,
#endif
#ifdef CONFIG_FTP
&stream_info_ftp,
#endif
#ifdef CONFIG_VSTREAM
&stream_info_vstream,
#endif
#ifdef CONFIG_LIBSMBCLIENT
&stream_info_smb,
#endif
&stream_info_cue,
#ifdef CONFIG_DVDREAD
&stream_info_ifo,
&stream_info_dvd,
#endif
#ifdef CONFIG_DVDNAV
&stream_info_dvdnav,
#endif
&stream_info_null,
&stream_info_mf,
&stream_info_file,
NULL
};
static stream_t *open_stream_plugin(const stream_info_t *sinfo, char *filename,
int mode, struct MPOpts *options,
int *file_format, int *ret,
char **redirected_url)
{
void* arg = NULL;
stream_t* s;
m_struct_t* desc = (m_struct_t*)sinfo->opts;
// Parse options
if(desc) {
arg = m_struct_alloc(desc);
if(sinfo->opts_url) {
m_option_t url_opt =
{ "stream url", arg , CONF_TYPE_CUSTOM_URL, 0, 0 ,0, sinfo->opts };
if(m_option_parse(&url_opt,"stream url",filename,arg,M_CONFIG_FILE) < 0) {
mp_msg(MSGT_OPEN,MSGL_ERR, "URL parsing failed on url %s\n",filename);
m_struct_free(desc,arg);
return NULL;
}
}
}
s = new_stream(-2,-2);
s->opts = options;
s->url=strdup(filename);
s->flags |= mode;
*ret = sinfo->open(s,mode,arg,file_format);
if((*ret) != STREAM_OK) {
#ifdef CONFIG_NETWORK
if (*ret == STREAM_REDIRECTED && redirected_url) {
if (s->streaming_ctrl && s->streaming_ctrl->url
&& s->streaming_ctrl->url->url)
*redirected_url = strdup(s->streaming_ctrl->url->url);
else
*redirected_url = NULL;
}
streaming_ctrl_free(s->streaming_ctrl);
#endif
free(s->url);
free(s);
return NULL;
}
if(s->type <= -2)
mp_msg(MSGT_OPEN,MSGL_WARN, "Warning streams need a type !!!!\n");
if(s->flags & STREAM_SEEK && !s->seek)
s->flags &= ~STREAM_SEEK;
if(s->seek && !(s->flags & STREAM_SEEK))
s->flags |= STREAM_SEEK;
s->mode = mode;
mp_msg(MSGT_OPEN,MSGL_V, "STREAM: [%s] %s\n",sinfo->name,filename);
mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Description: %s\n",sinfo->info);
mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Author: %s\n", sinfo->author);
mp_msg(MSGT_OPEN,MSGL_V, "STREAM: Comment: %s\n", sinfo->comment);
return s;
}
stream_t *open_stream_full(char *filename,int mode, struct MPOpts *options,
int* file_format)
{
int i,j,l,r;
const stream_info_t* sinfo;
stream_t* s;
char *redirected_url = NULL;
for(i = 0 ; auto_open_streams[i] ; i++) {
sinfo = auto_open_streams[i];
if(!sinfo->protocols) {
mp_msg(MSGT_OPEN,MSGL_WARN, "Stream type %s has protocols == NULL, it's a bug\n", sinfo->name);
continue;
}
for(j = 0 ; sinfo->protocols[j] ; j++) {
l = strlen(sinfo->protocols[j]);
// l == 0 => Don't do protocol matching (ie network and filenames)
if((l == 0 && !strstr(filename, "://")) ||
((strncasecmp(sinfo->protocols[j],filename,l) == 0) &&
(strncmp("://",filename+l,3) == 0))) {
*file_format = DEMUXER_TYPE_UNKNOWN;
s = open_stream_plugin(sinfo,filename,mode,options,file_format,&r,
&redirected_url);
if(s) return s;
if(r == STREAM_REDIRECTED && redirected_url) {
mp_msg(MSGT_OPEN,MSGL_V, "[%s] open %s redirected to %s\n",
sinfo->info, filename, redirected_url);
s = open_stream_full(redirected_url, mode, options, file_format);
free(redirected_url);
return s;
}
else if(r != STREAM_UNSUPPORTED) {
mp_msg(MSGT_OPEN,MSGL_ERR, MSGTR_FailedToOpen,filename);
return NULL;
}
break;
}
}
}
mp_msg(MSGT_OPEN,MSGL_ERR, "No stream found to handle url %s\n",filename);
return NULL;
}
stream_t *open_output_stream(char *filename, struct MPOpts *options)
{
int file_format; //unused
if(!filename) {
mp_msg(MSGT_OPEN,MSGL_ERR,"open_output_stream(), NULL filename, report this bug\n");
return NULL;
}
return open_stream_full(filename,STREAM_WRITE,options,&file_format);
}
//=================== STREAMER =========================
int stream_fill_buffer(stream_t *s){
int len;
if (/*s->fd == NULL ||*/ s->eof) { s->buf_pos = s->buf_len = 0; return 0; }
switch(s->type){
case STREAMTYPE_STREAM:
#ifdef CONFIG_NETWORK
if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_read ) {
len=s->streaming_ctrl->streaming_read(s->fd,s->buffer,STREAM_BUFFER_SIZE, s->streaming_ctrl);break;
} else {
len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);break;
}
#else
len=read(s->fd,s->buffer,STREAM_BUFFER_SIZE);break;
#endif
case STREAMTYPE_DS:
len = demux_read_data((demux_stream_t*)s->priv,s->buffer,STREAM_BUFFER_SIZE);
break;
default:
len= s->fill_buffer ? s->fill_buffer(s,s->buffer,STREAM_BUFFER_SIZE) : 0;
}
if(len<=0){ s->eof=1; s->buf_pos=s->buf_len=0; return 0; }
s->buf_pos=0;
s->buf_len=len;
s->pos+=len;
// printf("[%d]",len);fflush(stdout);
return len;
}
int stream_write_buffer(stream_t *s, unsigned char *buf, int len) {
int rd;
if(!s->write_buffer)
return -1;
rd = s->write_buffer(s, buf, len);
if(rd < 0)
return -1;
s->pos += rd;
return rd;
}
int stream_seek_long(stream_t *s,off_t pos){
off_t newpos=0;
// if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ) printf("seek_long to 0x%X\n",(unsigned int)pos);
s->buf_pos=s->buf_len=0;
if(s->mode == STREAM_WRITE) {
if(!s->seek || !s->seek(s,pos))
return 0;
return 1;
}
if(s->sector_size)
newpos = (pos/s->sector_size)*s->sector_size;
else
newpos = pos&(~((off_t)STREAM_BUFFER_SIZE-1));
if( mp_msg_test(MSGT_STREAM,MSGL_DBG3) ){
mp_msg(MSGT_STREAM,MSGL_DBG3, "s->pos=%"PRIX64" newpos=%"PRIX64" new_bufpos=%"PRIX64" buflen=%X \n",
(int64_t)s->pos,(int64_t)newpos,(int64_t)pos,s->buf_len);
}
pos-=newpos;
if(newpos==0 || newpos!=s->pos){
switch(s->type){
case STREAMTYPE_STREAM:
//s->pos=newpos; // real seek
// Some streaming protocol allow to seek backward and forward
// A function call that return -1 can tell that the protocol
// doesn't support seeking.
#ifdef CONFIG_NETWORK
if(s->seek) { // new stream seek is much cleaner than streaming_ctrl one
if(!s->seek(s,newpos)) {
mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
return 0;
}
break;
}
if( s->streaming_ctrl!=NULL && s->streaming_ctrl->streaming_seek ) {
if( s->streaming_ctrl->streaming_seek( s->fd, pos, s->streaming_ctrl )<0 ) {
mp_msg(MSGT_STREAM,MSGL_INFO,"Stream not seekable!\n");
return 1;
}
}
#else
if(newpos<s->pos){
mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek backward in linear streams!\n");
return 1;
}
while(s->pos<newpos){
if(stream_fill_buffer(s)<=0) break; // EOF
}
#endif
break;
default:
// This should at the beginning as soon as all streams are converted
if(!s->seek)
return 0;
// Now seek
if(!s->seek(s,newpos)) {
mp_msg(MSGT_STREAM,MSGL_ERR, "Seek failed\n");
return 0;
}
}
// putchar('.');fflush(stdout);
//} else {
// putchar('%');fflush(stdout);
}
while(stream_fill_buffer(s) > 0 && pos >= 0) {
if(pos<=s->buf_len){
s->buf_pos=pos; // byte position in sector
return 1;
}
pos -= s->buf_len;
}
// if(pos==s->buf_len) printf("XXX Seek to last byte of file -> EOF\n");
mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%"PRIX64" !\n",(int64_t)(pos+newpos));
return 0;
}
void stream_reset(stream_t *s){
if(s->eof){
s->pos=0; //ftell(f);
// s->buf_pos=s->buf_len=0;
s->eof=0;
}
if(s->control) s->control(s,STREAM_CTRL_RESET,NULL);
//stream_seek(s,0);
}
int stream_control(stream_t *s, int cmd, void *arg){
if(!s->control) return STREAM_UNSUPPORTED;
#ifdef CONFIG_STREAM_CACHE
if (s->cache_pid)
return cache_do_control(s, cmd, arg);
#endif
return s->control(s, cmd, arg);
}
stream_t* new_memory_stream(unsigned char* data,int len){
stream_t *s;
if(len < 0)
return NULL;
s=malloc(sizeof(stream_t)+len);
memset(s,0,sizeof(stream_t));
s->fd=-1;
s->type=STREAMTYPE_MEMORY;
s->buf_pos=0; s->buf_len=len;
s->start_pos=0; s->end_pos=len;
stream_reset(s);
s->pos=len;
memcpy(s->buffer,data,len);
return s;
}
stream_t* new_stream(int fd,int type){
stream_t *s=malloc(sizeof(stream_t));
if(s==NULL) return NULL;
memset(s,0,sizeof(stream_t));
#ifdef HAVE_WINSOCK2_H
{
WSADATA wsdata;
int temp = WSAStartup(0x0202, &wsdata); // there might be a better place for this (-> later)
mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 init: %i\n", temp);
}
#endif
s->fd=fd;
s->type=type;
s->buf_pos=s->buf_len=0;
s->start_pos=s->end_pos=0;
s->priv=NULL;
s->url=NULL;
s->cache_pid=0;
stream_reset(s);
return s;
}
void free_stream(stream_t *s){
// printf("\n*** free_stream() called ***\n");
#ifdef CONFIG_STREAM_CACHE
if(s->cache_pid) {
cache_uninit(s);
}
#endif
if(s->close) s->close(s);
if(s->fd>0){
/* on unix we define closesocket to close
on windows however we have to distinguish between
network socket and file */
if(s->url && strstr(s->url,"://"))
closesocket(s->fd);
else close(s->fd);
}
#ifdef HAVE_WINSOCK2_H
mp_msg(MSGT_STREAM,MSGL_V,"WINSOCK2 uninit\n");
WSACleanup(); // there might be a better place for this (-> later)
#endif
// Disabled atm, i don't like that. s->priv can be anything after all
// streams should destroy their priv on close
//if(s->priv) free(s->priv);
if(s->url) free(s->url);
free(s);
}
stream_t* new_ds_stream(demux_stream_t *ds) {
stream_t* s = new_stream(-1,STREAMTYPE_DS);
s->priv = ds;
return s;
}
void stream_set_interrupt_callback(int (*cb)(struct input_ctx *, int),
struct input_ctx *ctx)
{
stream_check_interrupt_cb = cb;
stream_check_interrupt_ctx = ctx;
}
int stream_check_interrupt(int time) {
if(!stream_check_interrupt_cb) return 0;
return stream_check_interrupt_cb(stream_check_interrupt_ctx, time);
}
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