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mpv/libmpdemux/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 <signal.h>
#include <strings.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "../osdep/shmem.h"
#include "stream.h"
#include "demuxer.h"
#include "../m_option.h"
#include "../m_struct.h"
extern int verbose; // defined in mplayer.c
void cache_uninit(stream_t *s); // defined in cache2.c
#include "cue_read.h"
//#include "vcd_read_bincue.h"
#ifdef USE_DVDREAD
int dvd_read_sector(dvd_priv_t *d,unsigned char* data);
void dvd_seek(dvd_priv_t *d,int pos);
void dvd_close(dvd_priv_t *d);
#endif
#ifdef LIBSMBCLIENT
#include "libsmbclient.h"
#endif
#ifdef HAVE_VCD
extern stream_info_t stream_info_vcd;
#endif
#ifdef HAVE_CDDA
extern stream_info_t stream_info_cdda;
#endif
#ifdef MPLAYER_NETWORK
extern stream_info_t stream_info_netstream;
#endif
extern stream_info_t stream_info_null;
extern stream_info_t stream_info_file;
stream_info_t* auto_open_streams[] = {
#ifdef HAVE_VCD
&stream_info_vcd,
#endif
#ifdef HAVE_CDDA
&stream_info_cdda,
#endif
#ifdef MPLAYER_NETWORK
&stream_info_netstream,
#endif
&stream_info_null,
&stream_info_file,
NULL
};
stream_t* open_stream_plugin(stream_info_t* sinfo,char* filename,int mode,
char** options, int* file_format, int* ret) {
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;
}
}
if(options) {
int i;
for(i = 0 ; options[i] != NULL ; i += 2) {
mp_msg(MSGT_OPEN,MSGL_DBG2, "Set stream arg %s=%s\n",
options[i],options[i+1]);
if(!m_struct_set(desc,arg,options[i],options[i+1]))
mp_msg(MSGT_OPEN,MSGL_WARN, "Failed to set stream option %s=%s\n",
options[i],options[i+1]);
}
}
}
s = new_stream(-2,-2);
s->url=strdup(filename);
s->flags |= mode;
*ret = sinfo->open(s,mode,arg,file_format);
if((*ret) != STREAM_OK) {
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;
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, char** options, int* file_format) {
int i,j,l,r;
stream_info_t* sinfo;
stream_t* s;
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 have protocols == NULL, it's a bug\n");
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) || ((strncmp(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);
if(s) return s;
if(r != STREAM_UNSUPORTED) {
mp_msg(MSGT_OPEN,MSGL_ERR, "Failed to open %s\n",filename);
return NULL;
}
break;
}
}
}
mp_msg(MSGT_OPEN,MSGL_ERR, "No stream found to handle url %s\n",filename);
return NULL;
}
//=================== 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){
#ifdef LIBSMBCLIENT
case STREAMTYPE_SMB:
len=smbc_read(s->fd,s->buffer,STREAM_BUFFER_SIZE);
break;
#endif
case STREAMTYPE_STREAM:
#ifdef MPLAYER_NETWORK
if( s->streaming_ctrl!=NULL ) {
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_VCDBINCUE:
len=cue_vcd_read(s->buffer);break;
#ifdef USE_DVDNAV
case STREAMTYPE_DVDNAV: {
dvdnav_stream_read((dvdnav_priv_t*)s->priv,s->buffer,&len);
if (len==0) return 0; // this was an event, so repeat the read
break;
}
#endif
#ifdef USE_DVDREAD
case STREAMTYPE_DVD: {
off_t pos=dvd_read_sector(s->priv,s->buffer);
if(pos>=0){
len=2048; // full sector
s->pos=2048*pos-len;
} else len=-1; // error
break;
}
#endif
case STREAMTYPE_DS:
len = demux_read_data((demux_stream_t*)s->priv,s->buffer,STREAM_BUFFER_SIZE);
break;
#ifdef HAS_DVBIN_SUPPORT
case STREAMTYPE_DVB:
len = dvb_streaming_read(s->fd, s->buffer, STREAM_BUFFER_SIZE, s->priv);
break;
#endif
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_seek_long(stream_t *s,off_t pos){
off_t newpos=0;
// if(verbose>=3) printf("seek_long to 0x%X\n",(unsigned int)pos);
s->buf_pos=s->buf_len=0;
switch(s->type){
case STREAMTYPE_SMB:
case STREAMTYPE_STREAM:
#ifdef _LARGEFILE_SOURCE
newpos=pos&(~((long long)STREAM_BUFFER_SIZE-1));break;
#else
newpos=pos&(~(STREAM_BUFFER_SIZE-1));break;
#endif
case STREAMTYPE_VCDBINCUE:
newpos=(pos/VCD_SECTOR_DATA)*VCD_SECTOR_DATA;break;
case STREAMTYPE_DVD:
newpos=pos/2048; newpos*=2048; break;
default:
// Round on sector size
if(s->sector_size)
newpos=(pos/s->sector_size)*s->sector_size;
else { // Otherwise on the buffer size
#ifdef _LARGEFILE_SOURCE
newpos=pos&(~((long long)STREAM_BUFFER_SIZE-1));break;
#else
newpos=pos&(~(STREAM_BUFFER_SIZE-1));break;
#endif
}
break;
}
if(verbose>=3){
#ifdef _LARGEFILE_SOURCE
printf("s->pos=%llX newpos=%llX new_bufpos=%llX buflen=%X \n",
(long long)s->pos,(long long)newpos,(long long)pos,s->buf_len);
#else
printf("s->pos=%X newpos=%X new_bufpos=%X buflen=%X \n",
(unsigned int)s->pos,newpos,pos,s->buf_len);
#endif
}
pos-=newpos;
if(newpos==0 || newpos!=s->pos){
switch(s->type){
#ifdef LIBSMBCLIENT
case STREAMTYPE_SMB:
s->pos=newpos; // real seek
if(smbc_lseek(s->fd,s->pos,SEEK_SET)<0) s->eof=1;
break;
#endif
case STREAMTYPE_VCDBINCUE:
s->pos=newpos; // real seek
cue_set_msf(s->pos/VCD_SECTOR_DATA);
break;
#ifdef USE_DVDNAV
case STREAMTYPE_DVDNAV: {
if (newpos==0) {
if (dvdnav_stream_reset((dvdnav_priv_t*)s->priv))
s->pos=0;
}
if(newpos!=s->pos){
mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek in DVDNAV streams yet!\n");
return 1;
}
break;
}
#endif
#ifdef USE_DVDREAD
case STREAMTYPE_DVD:
s->pos=newpos; // real seek
dvd_seek(s->priv,s->pos/2048);
break;
#endif
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 MPLAYER_NETWORK
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);
}
stream_fill_buffer(s);
if(pos>=0 && pos<=s->buf_len){
s->buf_pos=pos; // byte position in sector
return 1;
}
// if(pos==s->buf_len) printf("XXX Seek to last byte of file -> EOF\n");
#ifdef _LARGEFILE_SOURCE
mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%llX !\n",(long long)(pos+newpos));
#else
mp_msg(MSGT_STREAM,MSGL_V,"stream_seek: WARNING! Can't seek to 0x%X !\n",(pos+newpos));
#endif
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);
}
stream_t* new_memory_stream(unsigned char* data,int len){
stream_t *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));
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 USE_STREAM_CACHE
if(s->cache_pid) {
cache_uninit(s);
}
#endif
switch(s->type) {
#ifdef LIBSMBCLIENT
case STREAMTYPE_SMB:
smbc_close(s->fd);
break;
#endif
#ifdef HAS_DVBIN_SUPPORT
case STREAMTYPE_DVB:
dvbin_close(s->priv);
break;
#endif
#ifdef USE_DVDREAD
case STREAMTYPE_DVD:
dvd_close(s->priv);
#endif
default:
if(s->close) s->close(s);
}
if(s->fd>0) close(s->fd);
// 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;
}
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