int url_lpfillbuffer(URLContext *s,int size)
{
url_lpbuf_t *lp;
int rlen=0;
int ssread;
int cache_read_len=0;
int64_t tmprp;
if(!s || !s->lpbuf)
return AVERROR(EINVAL);
lp=s->lpbuf;
lp_lock(&lp->mutex);
if(lp->wp>=lp->rp)
{
if(lp->rp!=lp->buffer)
ssread=FFMIN(size,lp->buffer_end-lp->wp);
else
ssread=FFMIN(size,lp->buffer_end-lp->wp-32);
}
else
ssread=FFMIN(size,lp->rp-lp->wp-32);/*reversed 32bytes;*/
lp_bprint( AV_LOG_INFO,"fill buffer %d,buffer=%x,rp=%x,wp=%x,buffer_end=%x,size=%d\n",ssread,lp->buffer,lp->rp,lp->wp,lp->buffer_end,size);
if(ssread<=0)
{
rlen=0;
goto release;
}
if(lp->cache_enable){
/*do read on cache first*/
rlen=aviolp_cache_read(lp->cache_id,lp->pos,lp->wp,ssread);
cache_read_len=rlen;
lp_bprint(AV_LOG_INFO,"filled buffer from cache=%d\n",cache_read_len);
}
if(rlen<=0){
if(lp->file_size>0 && lp->pos>=lp->file_size){
rlen=0;/*file read end*/
goto release;
}else if(lp->cache_enable && s->prot->url_seek(s,0,SEEK_CUR)!=lp->pos){/*maybe do read from cache file before,so seek it now*/
int ret=s->prot->url_seek(s,lp->pos,SEEK_SET);
if(ret!=lp->pos){
rlen=-1;/*error*/
goto release;
}
}
tmprp=lp->pos;
lp_unlock(&lp->mutex);/*release lock for long time read*/
rlen=s->prot->url_read(s,lp->wp,ssread);
lp_lock(&lp->mutex);
if(tmprp!=lp->pos)
rlen=AVERROR(EAGAIN);;/*pos have changed,so I think we have a seek on read*/
lp_bprint(AV_LOG_INFO,"filled buffer from remote=%d\n",rlen);
}
if(rlen>0)
{
if(lp->cache_enable&& cache_read_len<=0)/*not read from cache itself*/
aviolp_cache_write(lp->cache_id,lp->pos,lp->wp,rlen);
lp->valid_data_size+=rlen;
lp->pos+=rlen;
lp->wp+=rlen;
if(lp->wp>=lp->buffer_end)
lp->wp=lp->buffer;
}
release:
lp_unlock(&lp->mutex);
lp_bprint( AV_LOG_INFO,"lpfilld=%d\n",rlen);
return rlen;
}
int url_lpopen(URLContext *s,int size)
{
url_lpbuf_t *lp;
int blocksize=32*1024;
int ret;
float value=0.0;
int bufsize=0;
if(size==0){
//size=am_getconfig_float("libplayer.ffmpeg.lpbufsizemax",&value);
//if(size<=0)
size=IO_LP_BUFFER_SIZE;
}
lp_bprint( AV_LOG_INFO,"url_lpopen=%d\n",size);
if(!s)
return -1;
lp_bprint( AV_LOG_INFO,"url_lpopen2=%d\n",size);
//ret=am_getconfig_float("libplayer.ffmpeg.lpbufblocksize",&value);
//if(ret>=0 && value>=32){
// blocksize=(int)value;
//}
lp_sprint( AV_LOG_INFO,"lpbuffer block size=%d\n",blocksize);
lp=av_mallocz(sizeof(url_lpbuf_t));
if(!lp)
return AVERROR(ENOMEM);
lp->buffer=av_malloc(size);
if(!lp->buffer)
{
int failedsize=size/2;/*if no memory used 1/2 size */
//ret=am_getconfig_float("libplayer.ffmpeg.lpbuffaildsize",&value);
//if(ret>=0 && value>=1024){
// failedsize=(int)value;
//}
lp_sprint( AV_LOG_INFO,"malloc buf failed,used failed size=%d\n",failedsize);
lp->buffer=av_malloc(failedsize);
while(!lp->buffer){
failedsize=failedsize/2;
if(failedsize<16*1024)/*do't malloc too small size failed size*/
return AVERROR(ENOMEM);
lp->buffer=av_malloc(failedsize);
}
bufsize=failedsize;
}else{
bufsize=size;
}
lp_sprint( AV_LOG_INFO,"url_lpopen used lp buf size=%d\n",bufsize);
s->lpbuf=lp;
lp->buffer_size=bufsize;
lp->rp=lp->buffer;
lp->wp=lp->buffer;
lp->buffer_end=lp->buffer+bufsize;
lp->valid_data_size=0;
lp->pos=0;
lp->block_read_size=FFMIN(blocksize,bufsize>>4);
lp_lock_init(&lp->mutex,NULL);
lp->file_size=url_lpseek(s,0,AVSEEK_SIZE);
lp->cache_enable=0;
lp->cache_id=aviolp_cache_open(s->filename,url_filesize(s));
lp->dbg_cnt=0;
if(lp->cache_id!=0)
lp->cache_enable=1;
lp_bprint( AV_LOG_INFO,"url_lpopen4%d\n",bufsize);
return 0;
}
int url_lpopen(URLContext *s,int size)
{
url_lpbuf_t *lp;
int blocksize=32*1024;
int ret;
float value=0.0;
int bufsize=0;
if(size==0){
ret=am_getconfig_float("libplayer.ffmpeg.lpbufsizemax",&value);
if(ret<0 || value < 1024*32){
if(am_getconfig_bool_def("media.amplayer.low_ram",0)){
size=IO_LP_BUFFER_SIZE/8;
}else{
size=IO_LP_BUFFER_SIZE;
}
}else{
size=(int)value;
}
}
lp_bprint( AV_LOG_INFO,"url_lpopen=%d\n",size);
if(!s)
return -1;
lp_bprint( AV_LOG_INFO,"url_lpopen2=%d\n",size);
ret=am_getconfig_float("libplayer.ffmpeg.lpbufblocksize",&value);
if(ret>=0 && value>=32){
blocksize=(int)value;
}
lp_sprint( AV_LOG_INFO,"lpbuffer block size=%d\n",blocksize);
lp=av_mallocz(sizeof(url_lpbuf_t));
if(!lp)
return AVERROR(ENOMEM);
lp->buffer=av_malloc(size);
if(!lp->buffer)
{
int failedsize=size/2;/*if no memory used 1/2 size */
ret=am_getconfig_float("libplayer.ffmpeg.lpbuffaildsize",&value);
if(ret>=0 && value>=1024){
failedsize=(int)value;
}
lp_sprint( AV_LOG_INFO,"malloc buf failed,used failed size=%d\n",failedsize);
lp->buffer=av_malloc(failedsize);
while(!lp->buffer){
failedsize=failedsize/2;
if(failedsize<16*1024){/*do't malloc too small size failed size*/
av_free(lp);
return AVERROR(ENOMEM);
}
lp->buffer=av_malloc(failedsize);
}
bufsize=failedsize;
}else{
bufsize=size;
}
lp_sprint( AV_LOG_INFO,"url_lpopen used lp buf size=%d\n",bufsize);
s->lpbuf=lp;
lp->buffer_size=bufsize;
lp->rp=lp->buffer;
lp->wp=lp->buffer;
lp->buffer_end=lp->buffer+bufsize;
lp->valid_data_size=0;
lp->pos=0;
lp->block_read_size=FFMIN(blocksize,bufsize>>4);
lp_lock_init(&lp->mutex,NULL);
lp->file_size=url_lpseek(s,0,AVSEEK_SIZE);
lp->cache_enable=0;
lp->cache_id=aviolp_cache_open(s->filename,url_lpseek(s,0,AVSEEK_SIZE));
lp->dbg_cnt=0;
ret=am_getconfig_float("libplayer.ffmpeg.lpbufmaxbuflv",&value);
if(ret<0)
lp->max_forword_level=1;
else{
lp->max_forword_level=value;
}
if(lp->cache_id!=0)
lp->cache_enable=1;
lp_bprint( AV_LOG_INFO,"url_lpopen4%d\n",bufsize);
ret=am_getconfig_float("libplayer.ffmpeg.maxreadseek",&value);
if(ret>=0 && value>=0)
{
lp->max_read_seek=value;
}else
{
lp->max_read_seek=DEF_MAX_READ_SEEK;
}
return 0;
}
