static int list_open(URLContext *h, const char *filename, int flags)
{
struct list_mgt *mgt;
int ret;
ByteIOContext *bio;
mgt=av_malloc(sizeof(struct list_mgt));
if(!mgt)
return AVERROR(ENOMEM);
memset(mgt,0,sizeof(*mgt));
mgt->filename=filename+5;
mgt->flags=flags;
if((ret=list_open_internet(&bio,mgt,mgt->filename,flags| URL_MINI_BUFFER | URL_NO_LP_BUFFER))!=0)
{
av_free(mgt);
return ret;
}
lp_lock_init(&mgt->mutex,NULL);
mgt->current_item=mgt->item_list;
mgt->cur_uio=NULL;
h->is_streamed=1;
h->is_slowmedia=1;
if(mgt->full_time>0 && mgt->have_list_end)
h->support_time_seek=1;
h->priv_data = mgt;
url_fclose(bio);
return 0;
}
static struct list_item * switchto_next_item(struct list_mgt *mgt)
{
struct list_item *next=NULL;
struct list_item *current;
if(!mgt)
return NULL;
if(mgt->current_item==NULL || mgt->current_item->next==NULL){
/*new refresh this mgtlist now*/
ByteIOContext *bio;
int ret;
if((ret=list_open_internet(&bio,mgt,mgt->filename,mgt->flags| URL_MINI_BUFFER | URL_NO_LP_BUFFER))!=0)
{
goto switchnext;
}
url_fclose(bio);
if(mgt->current_item && mgt->current_item->file){/*current item,switch to next*/
current=mgt->current_item;
next=mgt->current_item->next;
for(;next!=NULL;next=next->next){
if(next->file && strcmp(current->file,next->file)==0){
/*found the same item,switch to the next*/
current=next;
break;
}
}
while(current!=mgt->item_list){
/*del the old item,lest current,and then play current->next*/
list_del_item(mgt,mgt->item_list);
}
mgt->current_item=current;/*switch to new current;*/
}
}
switchnext:
if(mgt->current_item)
next=mgt->current_item->next;
else
next=mgt->item_list;
if(next)
av_log(NULL, AV_LOG_INFO, "switch to new file=%s,total=%d,start=%d,duration=%d\n",
next->file,mgt->item_num,next->start_time,next->duration);
else
av_log(NULL, AV_LOG_INFO, "switch to new file=NULL,total=%d\n",mgt->item_num);
return next;
}
static int list_open(URLContext *h, const char *filename, int flags)
{
struct list_mgt *mgt;
int ret;
ByteIOContext *bio;
mgt=av_malloc(sizeof(struct list_mgt));
if(!mgt)
return AVERROR(ENOMEM);
memset(mgt,0,sizeof(struct list_mgt));
mgt->key_tmp = NULL;
mgt->seq = -1;
mgt->cur_seq_no = -1;
mgt->filename=filename+5;
mgt->flags=flags;
mgt->jump_item_num = 0;
if((ret=list_open_internet(&bio,mgt,mgt->filename,flags| URL_MINI_BUFFER | URL_NO_LP_BUFFER))!=0)
{
av_free(mgt);
return ret;
}
lp_lock_init(&mgt->mutex,NULL);
if(!mgt->have_list_end && (!mgt->have_sub_list)&&(mgt->target_duration<5)){
struct list_item *item=mgt->item_list;
int itemindex=mgt->item_num/2+1;/*for live streaming ,choose the middle item.*/
while(itemindex-->0 && item!=NULL)
item=item->next;
mgt->current_item=item;
}else
mgt->current_item=mgt->item_list;
mgt->cur_uio=NULL;
h->is_streamed=1;
h->is_slowmedia=1;
if(mgt->full_time>0 && mgt->have_list_end)
h->support_time_seek=1;
h->priv_data = mgt;
url_fclose(bio);
return 0;
}
static struct list_item * switchto_next_item(struct list_mgt *mgt)
{
struct list_item *next=NULL;
struct list_item *current = NULL;
if(!mgt)
return NULL;
int64_t reload_interval = mgt->item_num> 0&&mgt->current_item!=NULL?
mgt->current_item->duration :
mgt->target_duration;
int isNeedFetch = 1;
if(mgt->current_item==NULL || mgt->current_item->next==NULL){
/*new refresh this mgtlist now*/
ByteIOContext *bio;
int ret;
char* url = NULL;
if(mgt->n_variants>0&&NULL!=mgt->playing_variant){
url = mgt->playing_variant->url;
av_log(NULL, AV_LOG_INFO,"list open variant url:%s,bandwidth:%d\n",url,mgt->playing_variant->bandwidth);
}else{
url = mgt->filename;
av_log(NULL, AV_LOG_INFO,"list open url:%s\n",url);
}
reload_interval *= 500000;
if(!mgt->have_list_end&&(av_gettime() - mgt->last_load_time < reload_interval)){
av_log(NULL, AV_LOG_INFO,"drop fetch playlist from server\n");
isNeedFetch = 0;
}
if(isNeedFetch ==0||(ret=list_open_internet(&bio,mgt,url,mgt->flags| URL_MINI_BUFFER | URL_NO_LP_BUFFER))!=0)
{
goto switchnext;
}
url_fclose(bio);
if(mgt->current_item && mgt->current_item->file){/*current item,switch to next*/
current=mgt->current_item;
next=mgt->current_item->next;
for(;next!=NULL;next=next->next){
if(next->file && strcmp(current->file,next->file)==0){
/*found the same item,switch to the next*/
current=next;
break;
}
}
#if 0
while(current!=mgt->item_list){
/*del the old item,lest current,and then play current->next*/
list_del_item(mgt,mgt->item_list);
}
#endif
mgt->current_item=current;/*switch to new current;*/
if(!mgt->have_list_end &&mgt->item_num>LIVE_LIST_MAX){
list_shrink_live_list(mgt);
}
}
}
switchnext:
if(mgt->current_item)
next=mgt->current_item->next;
else
next=mgt->item_list;
if(next)
av_log(NULL, AV_LOG_INFO, "switch to new file=%s,total=%d,start=%d,duration=%d\n",
next->file,mgt->item_num,next->start_time,next->duration);
else
av_log(NULL, AV_LOG_INFO, "switch to new file=NULL,total=%d\n",mgt->item_num);
return next;
}
static int list_open(URLContext *h, const char *filename, int flags)
{
struct list_mgt *mgt;
int ret;
mgt = av_malloc(sizeof(struct list_mgt));
if (!mgt) {
return AVERROR(ENOMEM);
}
memset(mgt, 0, sizeof(struct list_mgt));
mgt->key_tmp = NULL;
mgt->start_seq = -1;
mgt->next_seq = -1;
mgt->filename = filename + 5;
mgt->flags = flags;
mgt->next_index = 0;
mgt->playing_item_index = 0;
mgt->playing_item_seq = 0;
mgt->strategy_up_counts = 0;
mgt->strategy_down_counts = 0;
mgt->listclose = 0;
mgt->cmf_item_index = 0;
mgt->cur_uio = NULL;
mgt->codec_buf_level=-1;
mgt->switch_down_num = 0;
mgt->switch_up_num = 0;
mgt->debug_level = (int)get_adaptation_ex_para(4);
char headers[1024];
char sess_id[40];
memset(headers, 0, sizeof(headers));
memset(sess_id, 0, sizeof(sess_id));
generate_segment_session_id(sess_id, 37);
snprintf(headers, sizeof(headers),
"Connection: keep-alive\r\n"
/*"Range: bytes=0- \r\n"*/
"X-Playback-Session-Id: %s\r\n%s", sess_id,h!=NULL&&h->headers!=NULL?h->headers:"");
//av_log(NULL, AV_LOG_INFO, "Generate ipad http request headers,\r\n%s\n", headers);
mgt->ipad_ex_headers = strndup(headers, 1024);
memset(headers, 0, sizeof(headers));
generate_playback_session_id(sess_id, 37);
snprintf(headers, sizeof(headers),
/*"Connection: keep-alive\r\n"*/
"X-Playback-Session-Id: %s\r\n%s", sess_id,h!=NULL&&h->headers!=NULL?h->headers:"");
//av_log(NULL, AV_LOG_INFO, "Generate ipad http request media headers,\r\n%s\n", headers);
mgt->ipad_req_media_headers = strndup(headers, 1024);
gListMgt = mgt;
if ((ret = list_open_internet(&mgt->cur_uio, mgt, mgt->filename, flags | URL_MINI_BUFFER | URL_NO_LP_BUFFER)) != 0) {
av_free(mgt);
return ret;
}
lp_lock_init(&mgt->mutex, NULL);
float value = 0.0;
ret = am_getconfig_float("libplayer.hls.stpos", &value);
if (ret < 0 || value <= 0) {
if (!mgt->have_list_end) {
int itemindex =0;
if(mgt->item_num<10&&mgt->target_duration<5){
itemindex = mgt->item_num / 2+1; /*for live streaming ,choose the middle item.*/
}else if(mgt->item_num>=10){
itemindex = mgt->item_num-3; //last item
}else if(mgt->item_num<10&&mgt->target_duration>5){
itemindex = mgt->item_num -1;
}
mgt->current_item = list_find_item_by_index(mgt,itemindex-1);
} else {
mgt->current_item = mgt->item_list;
}
}else{
mgt->current_item = list_find_item_by_index(mgt,(int)value-1);
}
h->is_streamed = 1;
h->is_slowmedia = 1;
if (mgt->full_time > 0 && mgt->have_list_end) {
h->support_time_seek = 1;
}
h->priv_data = mgt;
mgt->cache_http_handle = NULL;
ret = CacheHttp_Open(&mgt->cache_http_handle,mgt->ipad_req_media_headers);
if(mgt->debug_level>0){
hls_base_info_dump(mgt);
}
return 0;
}
static struct list_item * switchto_next_item(struct list_mgt *mgt) {
struct list_item *next = NULL;
struct list_item *current = NULL;
if (!mgt) {
return NULL;
}
int isNeedFetch = 1;
int64_t reload_interval = mgt->item_num > 0 && mgt->current_item != NULL ?\
mgt->current_item->duration:mgt->target_duration;
if(reload_interval >0){ //to usec
reload_interval *= 1000000;
}
if (mgt->n_variants > 0&&mgt->codec_buf_level>=0) { //vod,have mulit-bandwidth streams
//av_log(NULL, AV_LOG_INFO, "current playing item index: %d,current playing seq:%d\n", mgt->playing_item_index, mgt->playing_item_seq);
int is_switch = select_best_variant(mgt);
if (is_switch>0) { //will remove this tricks.
if (mgt->item_num > 0) {
list_delall_item(mgt);
}
mgt->current_item = mgt->current_item->next = NULL;
mgt->start_seq = -1;
if(!mgt->have_list_end){
mgt->next_seq = mgt->playing_item_seq+1;
}else{
mgt->next_seq = -1;
}
mgt->next_index = 0;
mgt->item_num = 0;
mgt->full_time = 0;
if(mgt->cur_uio){
url_fclose(mgt->cur_uio);
mgt->cur_uio = NULL;
}
if(mgt->debug_level==1){
hls_base_info_dump(mgt);
}
}
if(mgt->debug_level>1){
hls_base_info_dump(mgt);
}
//av_log(NULL, AV_LOG_INFO, "select best variant,bandwidth: %d\n", mgt->playing_variant->bandwidth);
}
reload:
if (mgt->current_item == NULL || mgt->current_item->next == NULL) {
/*new refresh this mgtlist now*/
ByteIOContext *bio = mgt->cur_uio;
int ret;
char* url = NULL;
if (mgt->n_variants > 0 && NULL != mgt->playing_variant) {
url = mgt->playing_variant->url;
//av_log(NULL, AV_LOG_INFO, "list open variant url:%s,bandwidth:%d\n", url, mgt->playing_variant->bandwidth);
} else {
url = mgt->filename;
//av_log(NULL, AV_LOG_INFO, "list open url:%s\n", url);
}
if (!mgt->have_list_end && (av_gettime() - mgt->last_load_time < reload_interval)&&mgt->item_num>0) {
//av_log(NULL, AV_LOG_INFO, "drop fetch playlist from server\n");
isNeedFetch = 0;
}
if (url_interrupt_cb()) {
return NULL;
}
if (isNeedFetch == 0 || (ret = list_open_internet(&bio, mgt, url, mgt->flags | URL_MINI_BUFFER | URL_NO_LP_BUFFER)) != 0) {
if(ret!=0&&mgt->n_variants>1){
switch_bw_level(mgt,-1);
}
goto switchnext;
}
mgt->cur_uio = bio;
if (mgt->current_item && mgt->current_item->file) { /*current item,switch to next*/
current = mgt->current_item;
next = mgt->current_item->next;
for (; next != NULL; next = next->next) {
if (next->file && strcmp(current->file, next->file) == 0) {
/*found the same item,switch to the next*/
current = next;
break;
}
}
#if 0
while (current != mgt->item_list) {
/*del the old item,lest current,and then play current->next*/
list_del_item(mgt, mgt->item_list);
}
#endif
mgt->current_item = current; /*switch to new current;*/
if (!mgt->have_list_end && mgt->item_num > LIVE_LIST_MAX) {
list_shrink_live_list(mgt);
}
}
}
switchnext:
if (mgt->current_item) {
next = mgt->current_item->next;
} else {
if (!mgt->have_list_end) { //live tv
next = mgt->item_list;
} else {
next = list_find_next_item_by_index(mgt, mgt->playing_item_index);
}
}
if (mgt->listclose){
return NULL;
}
if (next){
if(next->file!=NULL){
if(mgt->debug_level>1){
RLOG("Player switch to new item,url =%s,total item=%d,start=%.4lf,duration=%.4lf,index:%d,seq:%d\n",
next->file, mgt->item_num, next->start_time, next->duration,next->index,next->seq);
}
}
}else {
if(mgt->debug_level>1){
RLOG("Player can't find new item,total=%d\n", mgt->item_num);
}
if (!mgt->have_list_end) {
if (url_interrupt_cb()) {
return NULL;
}
usleep(100 * 1000);
reload_interval = mgt->target_duration * 500000;
isNeedFetch = 1;
goto reload;
}
}
return next;
}
