RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity
mpv/libmpdemux/stream.c

347 lines
8.0 KiB
C
Raw Blame History

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <signal.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
#include "demuxer.h"
extern int verbose; // defined in mplayer.c
#ifdef HAVE_VCD
#ifdef __FreeBSD__
#include "vcd_read_fbsd.h"
#else
#include "vcd_read.h"
#endif
#endif
#ifdef USE_DVDNAV
#include <dvdnav.h>
#include <../linux/timer.h>
static int still_sleep_until;
static int sleeping=0;
static int stillen=0;
#endif
#ifdef USE_DVDREAD
int dvd_read_sector(void* d,void* p2);
void dvd_seek(void* d,off_t pos);
#endif
//=================== STREAMER =========================
int stream_fill_buffer(stream_t *s){
int len;
if(s->eof){ s->buf_pos=s->buf_len=0; return 0; }
switch(s->type){
case STREAMTYPE_FILE:
case STREAMTYPE_STREAM:
case STREAMTYPE_PLAYLIST:
#ifdef STREAMING
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
#ifdef HAVE_VCD
case STREAMTYPE_VCD:
#ifdef VCD_CACHE
len=vcd_cache_read(s->fd,s->buffer);break;
#else
len=vcd_read(s->fd,s->buffer);break;
#endif
#endif
#ifdef USE_DVDNAV
case STREAMTYPE_DVDNAV: {
int event = DVDNAV_NOP;
if(sleeping)
{
dvdnav_still_skip(s->priv);
if(sleeping==1) if(GetTimer()>=still_sleep_until) sleeping = 0;
len = stillen;
}
if(dvdnav_get_next_block(s->priv,s->buffer,&event,&len)!=DVDNAV_STATUS_OK)
printf( "Error getting next block from DVD (%s)\n",dvdnav_err_to_string(s->priv) );
else switch(event) {
case DVDNAV_BLOCK_OK: {
/* be silent about this one */
break;
}
case DVDNAV_HIGHLIGHT: {
dvdnav_highlight_event_t *hevent = (dvdnav_highlight_event_t*)(s->buffer);
if (!hevent) {
printf("Highlight event broken\n");
break;
}
if (hevent->display)
{
printf( "Highlight (%u,%u)-(%u,%u) (button %d)\n",
hevent->sx,hevent->sy,
hevent->ex,hevent->ey,
hevent->buttonN );
}
else {
printf("Highlight Hide\n");
}
break;
}
case DVDNAV_STILL_FRAME: {
dvdnav_still_event_t *still_event = (dvdnav_still_event_t*)(s->buffer);
printf( "Still Frame\n" );
if(still_event->length==0xff) { printf( "Sleeping indefinately\n" ); sleeping=2; }
else {
InitTimer();
still_sleep_until = GetTimer() + still_event->length*1000000;
printf( "Sleeping %d sec(s)\n", still_event->length );
sleeping=1;
}
stillen = len;
break;
}
case DVDNAV_STOP: {
printf( "Nav Stop\n" );
len=0;
break;
}
case DVDNAV_NOP: {
printf("Nav NOP\n");
break;
}
case DVDNAV_SPU_STREAM_CHANGE: {
printf("Nav SPU Stream Change\n");
break;
}
case DVDNAV_AUDIO_STREAM_CHANGE: {
printf("Nav Audio Stream Change\n");
break;
}
case DVDNAV_VTS_CHANGE: {
printf("Nav VTS Change\n");
break;
}
case DVDNAV_CELL_CHANGE: {
printf("Nav Cell Change\n");
break;
}
case DVDNAV_NAV_PACKET: {
// printf("Nav Packet\n");
break;
}
case DVDNAV_SPU_CLUT_CHANGE: {
printf("Nav SPU CLUT Change\n");
break;
}
case DVDNAV_SEEK_DONE: {
printf("Nav Seek Done\n");
break;
}
default:
printf("Weird nav event %d\n",event);
break;
}
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
#ifdef USE_TV
case STREAMTYPE_TV:
{
len = 0;
break;
}
#endif
case STREAMTYPE_DS:
len = demux_read_data((demux_stream_t*)s->priv,s->buffer,STREAM_BUFFER_SIZE);
break;
default: len=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;
// 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_FILE:
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_VCD:
newpos=(pos/VCD_SECTOR_DATA)*VCD_SECTOR_DATA;break;
case STREAMTYPE_DVD:
newpos=pos/2048; newpos*=2048; 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){
case STREAMTYPE_FILE:
s->pos=newpos; // real seek
if(lseek(s->fd,s->pos,SEEK_SET)<0) s->eof=1;
break;
#ifdef HAVE_VCD
case STREAMTYPE_VCD:
s->pos=newpos; // real seek
#ifdef VCD_CACHE
vcd_cache_seek(s->pos/VCD_SECTOR_DATA);
#else
vcd_set_msf(s->pos/VCD_SECTOR_DATA);
#endif
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 STREAMING
if( s->streaming_ctrl!=NULL ) {
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;
#ifdef USE_TV
case STREAMTYPE_TV:
s->pos=newpos; /* no sense */
break;
#endif
}
// 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;
}
//stream_seek(s,0);
}
stream_t* new_memory_stream(unsigned char* data,int len){
stream_t *s=malloc(sizeof(stream_t)+len);
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->cache_pid=0;
stream_reset(s);
return s;
}
void free_stream(stream_t *s){
printf("\n*** free_stream() called ***\n");
if(s->cache_pid) {
kill(s->cache_pid,SIGTERM);
waitpid(s->cache_pid,NULL,0);
}
if(s->priv) free(s->priv);
free(s);
}
stream_t* new_ds_stream(demux_stream_t *ds) {
stream_t* s = new_stream(-1,STREAMTYPE_DS);
s->priv = ds;
return s;
}
Reference in New Issue View Git Blame Copy Permalink