Bool MPD_CanHandleURLInService(GF_InputService *plug, const char *url)
{
/**
* May arrive when using pid:// URLs into a TS stream
*/
GF_MPD_In *mpdin = (GF_MPD_In*) plug->priv;
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Can Handle URL In Service (%p) request from terminal for %s\n", mpdin->service, url));
if (!plug || !plug->priv) return GF_SERVICE_ERROR;
if (gf_dash_get_url(mpdin->dash) && !strcmp(gf_dash_get_url(mpdin->dash) , url)) {
return 1;
} else {
GF_MPDGroup *mudta;
GF_InputService *segment_ifce = NULL;
u32 i;
for (i=0;i<gf_dash_get_group_count(mpdin->dash); i++) {
if (!gf_dash_is_group_selected(mpdin->dash, i)) continue;
mudta = gf_dash_get_group_udta(mpdin->dash, i);
segment_ifce = mudta->segment_ifce;
if (mudta && mudta->segment_ifce && mudta->segment_ifce->CanHandleURLInService) {
return mudta->segment_ifce->CanHandleURLInService(plug, url);
}
}
return 0;
}
}
GF_InputService *MPD_GetInputServiceForChannel(GF_MPD_In *mpdin, LPNETCHANNEL channel)
{
GF_Channel *ch;
if (!channel) {
if (gf_dash_is_group_selected(mpdin->dash, 0)) {
GF_MPDGroup *mudta = gf_dash_get_group_udta(mpdin->dash, 0);
return mudta ? mudta->segment_ifce : NULL;
}
return NULL;
}
ch = (GF_Channel *) channel;
assert(ch->odm && ch->odm->OD);
return (GF_InputService *) ch->odm->OD->service_ifce;
}
static GF_Descriptor *MPD_GetServiceDesc(GF_InputService *plug, u32 expect_type, const char *sub_url)
{
u32 i;
GF_MPD_In *mpdin = (GF_MPD_In*) plug->priv;
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Service Description request from terminal for %s\n", sub_url));
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
GF_Descriptor *desc;
GF_MPDGroup *mudta;
if (!gf_dash_is_group_selected(mpdin->dash, i))
continue;
mudta = gf_dash_get_group_udta(mpdin->dash, i);
if (!mudta) continue;
if (mudta->service_descriptor_fetched) continue;
desc = mudta->segment_ifce->GetServiceDescriptor(mudta->segment_ifce, expect_type, sub_url);
if (desc) mudta->service_descriptor_fetched = 1;
return desc;
}
return NULL;
}
static GF_Err MPD_ClientQuery(GF_InputService *ifce, GF_NetworkCommand *param)
{
u32 i;
GF_MPD_In *mpdin = (GF_MPD_In *) ifce->proxy_udta;
if (!param || !ifce || !ifce->proxy_udta) return GF_BAD_PARAM;
/*gets byte range of init segment (for local validation)*/
if (param->command_type==GF_NET_SERVICE_QUERY_INIT_RANGE) {
param->url_query.next_url = NULL;
param->url_query.start_range = 0;
param->url_query.end_range = 0;
mpdin->in_seek = 0;
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
GF_MPDGroup *group;
if (!gf_dash_is_group_selected(mpdin->dash, i)) continue;
group = gf_dash_get_group_udta(mpdin->dash, i);
if (group->segment_ifce == ifce) {
gf_dash_group_get_segment_init_url(mpdin->dash, i, ¶m->url_query.start_range, ¶m->url_query.end_range);
return GF_OK;
}
}
return GF_SERVICE_ERROR;
}
/*gets URL and byte range of next segment - if needed, adds butstream switching segment info*/
if (param->command_type==GF_NET_SERVICE_QUERY_NEXT) {
Bool group_done;
u32 nb_segments_cached;
u32 group_idx=0;
GF_MPDGroup *group=NULL;
const char *src_url;
Bool discard_first_cache_entry = 1;
u32 timer = gf_sys_clock();
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Service Query Next request from input service %s\n", ifce->module_name));
param->url_query.discontinuity_type = 0;
if (mpdin->in_seek) {
mpdin->in_seek = 0;
param->url_query.discontinuity_type = 2;
discard_first_cache_entry = 0;
}
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
if (!gf_dash_is_group_selected(mpdin->dash, i)) continue;
group = gf_dash_get_group_udta(mpdin->dash, i);
if (group->segment_ifce == ifce) {
group_idx = i;
break;
}
group=NULL;
}
if (!group) {
return GF_SERVICE_ERROR;
}
while (gf_dash_is_running(mpdin->dash) ) {
group_done=0;
nb_segments_cached = gf_dash_group_get_num_segments_ready(mpdin->dash, group_idx, &group_done);
if (nb_segments_cached>=2)
break;
if (group_done) {
if (!gf_dash_get_period_switch_status(mpdin->dash) && !gf_dash_in_last_period(mpdin->dash) ) {
GF_NetworkCommand com;
memset(&com, 0, sizeof(GF_NetworkCommand));
com.command_type = GF_NET_BUFFER_QUERY;
while (gf_dash_get_period_switch_status(mpdin->dash) != 1) {
gf_term_on_command(mpdin->service, &com, GF_OK);
if (!com.buffer.occupancy) {
gf_dash_request_period_switch(mpdin->dash);
break;
}
gf_sleep(20);
}
}
return GF_EOS;
}
gf_sleep(16);
}
nb_segments_cached = gf_dash_group_get_num_segments_ready(mpdin->dash, group_idx, &group_done);
if (nb_segments_cached < 2) {
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] No more file in cache, EOS\n"));
return GF_EOS;
} else {
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Had to wait for %u ms for the only cache file to be downloaded\n", (gf_sys_clock() - timer)));
}
if (discard_first_cache_entry) {
gf_dash_group_discard_segment(mpdin->dash, group_idx);
}
gf_dash_group_get_next_segment_location(mpdin->dash, group_idx, ¶m->url_query.next_url, ¶m->url_query.start_range, ¶m->url_query.end_range,
¶m->url_query.next_url_init_or_switch_segment, ¶m->url_query.switch_start_range , ¶m->url_query.switch_end_range,
&src_url);
{
u32 timer2 = gf_sys_clock() - timer ;
if (timer2 > 1000) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Waiting for download to end took a long time : %u ms\n", timer2));
}
if (param->url_query.end_range) {
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] Switching segment playback to %s (Media Range: "LLD"-"LLD")\n", src_url, param->url_query.start_range, param->url_query.end_range));
} else {
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] Switching segment playback to %s\n", src_url));
}
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] segment start time %g sec\n", gf_dash_group_current_segment_start_time(mpdin->dash, group_idx) ));
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Waited %d ms - Elements in cache: %u/%u\n\tCache file name %s\n", timer2, gf_dash_group_get_num_segments_ready(mpdin->dash, group_idx, &group_done), gf_dash_group_get_max_segments_in_cache(mpdin->dash, group_idx), param->url_query.next_url ));
}
return GF_OK;
}
return GF_OK;
}
GF_Err mpdin_dash_io_on_dash_event(GF_DASHFileIO *dashio, GF_DASHEventType dash_evt, GF_Err error_code)
{
GF_Err e;
u32 i;
GF_MPD_In *mpdin = (GF_MPD_In *)dashio->udta;
if (dash_evt==GF_DASH_EVENT_PERIOD_SETUP_ERROR) {
if (!mpdin->connection_ack_sent) {
gf_term_on_connect(mpdin->service, NULL, error_code);
mpdin->connection_ack_sent=1;
}
return GF_OK;
}
if (dash_evt==GF_DASH_EVENT_SELECT_GROUPS) {
const char *opt;
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
/*todo: select groups based on user criteria*/
gf_dash_group_select(mpdin->dash, i, 1);
}
opt = gf_modules_get_option((GF_BaseInterface *)mpdin->plug, "Systems", "Language3CC");
if (opt && strcmp(opt, "und"))
gf_dash_groups_set_language(mpdin->dash, opt);
return GF_OK;
}
/*for all selected groups, create input service and connect to init/first segment*/
if (dash_evt==GF_DASH_EVENT_CREATE_PLAYBACK) {
/*select input services if possible*/
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
const char *mime, *init_segment;
if (!gf_dash_is_group_selected(mpdin->dash, i))
continue;
mime = gf_dash_group_get_segment_mime(mpdin->dash, i);
init_segment = gf_dash_group_get_segment_init_url(mpdin->dash, i, NULL, NULL);
e = MPD_LoadMediaService(mpdin, i, mime, init_segment);
if (e != GF_OK) {
gf_dash_group_select(mpdin->dash, i, 0);
} else {
/*connect our media service*/
GF_MPDGroup *group = gf_dash_get_group_udta(mpdin->dash, i);
e = group->segment_ifce->ConnectService(group->segment_ifce, mpdin->service, init_segment);
if (e) {
GF_LOG(GF_LOG_WARNING, GF_LOG_DASH, ("[MPD_IN] Unable to connect input service to %s\n", init_segment));
gf_dash_group_select(mpdin->dash, i, 0);
} else {
u32 w, h;
group->service_connected = 1;
w = h = 0;
gf_dash_group_get_video_info(mpdin->dash, i, &w, &h);
if (w && h && w>mpdin->width && h>mpdin->height) {
mpdin->width = w;
mpdin->height = h;
}
}
}
}
if (!mpdin->connection_ack_sent) {
gf_term_on_connect(mpdin->service, NULL, GF_OK);
mpdin->connection_ack_sent=1;
}
return GF_OK;
}
/*for all running services, stop service*/
if (dash_evt==GF_DASH_EVENT_DESTROY_PLAYBACK) {
mpdin->service->subservice_disconnect = 1;
gf_term_on_disconnect(mpdin->service, NULL, GF_OK);
mpdin->service->subservice_disconnect = 2;
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
GF_MPDGroup *group = gf_dash_get_group_udta(mpdin->dash, i);
if (!group) continue;
if (group->segment_ifce) {
if (group->service_connected) {
group->segment_ifce->CloseService(group->segment_ifce);
group->service_connected = 0;
}
gf_modules_close_interface((GF_BaseInterface *) group->segment_ifce);
}
gf_free(group);
gf_dash_set_group_udta(mpdin->dash, i, NULL);
}
mpdin->service->subservice_disconnect = 0;
}
return GF_OK;
}
static GF_Err MPD_ClientQuery(GF_InputService *ifce, GF_NetworkCommand *param)
{
u32 i;
GF_Err e;
GF_MPD_In *mpdin = (GF_MPD_In *) ifce->proxy_udta;
if (!param || !ifce || !ifce->proxy_udta) return GF_BAD_PARAM;
mpdin->in_seek = 0;
/*gets byte range of init segment (for local validation)*/
if (param->command_type==GF_NET_SERVICE_QUERY_INIT_RANGE) {
param->url_query.next_url = NULL;
param->url_query.start_range = 0;
param->url_query.end_range = 0;
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
GF_MPDGroup *group;
if (!gf_dash_is_group_selectable(mpdin->dash, i)) continue;
group = gf_dash_get_group_udta(mpdin->dash, i);
if (group->segment_ifce == ifce) {
gf_dash_group_get_segment_init_url(mpdin->dash, i, ¶m->url_query.start_range, ¶m->url_query.end_range);
param->url_query.current_download = 0;
return GF_OK;
}
}
return GF_SERVICE_ERROR;
}
/*gets URL and byte range of next segment - if needed, adds bitstream switching segment info*/
if (param->command_type==GF_NET_SERVICE_QUERY_NEXT) {
Bool group_done;
u32 nb_segments_cached;
u32 group_idx=0;
GF_MPDGroup *group=NULL;
const char *src_url;
Bool discard_first_cache_entry = param->url_query.drop_first_segment;
Bool check_current_download = param->url_query.current_download;
u32 timer = gf_sys_clock();
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Service Query Next request from input service %s\n", ifce->module_name));
param->url_query.current_download = 0;
param->url_query.discontinuity_type = 0;
for (i=0; i<gf_dash_get_group_count(mpdin->dash); i++) {
if (!gf_dash_is_group_selected(mpdin->dash, i)) continue;
group = gf_dash_get_group_udta(mpdin->dash, i);
if (group->segment_ifce == ifce) {
group_idx = i;
break;
}
group=NULL;
}
if (!group) {
return GF_SERVICE_ERROR;
}
if (group->in_seek) {
group->in_seek = 0;
param->url_query.discontinuity_type = 2;
discard_first_cache_entry = 0;
}
//update group idx
if (group->idx != group_idx) {
group->idx = group_idx;
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] New AdaptationSet detected after MPD update ?\n"));
}
if (discard_first_cache_entry) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Discarding first segment in cache\n"));
gf_dash_group_discard_segment(mpdin->dash, group_idx);
}
while (gf_dash_is_running(mpdin->dash) ) {
group_done=0;
nb_segments_cached = gf_dash_group_get_num_segments_ready(mpdin->dash, group_idx, &group_done);
if (nb_segments_cached>=1)
break;
if (group_done) {
if (!gf_dash_get_period_switch_status(mpdin->dash) && !gf_dash_in_last_period(mpdin->dash) ) {
GF_NetworkCommand com;
param->url_query.in_end_of_period = 1;
memset(&com, 0, sizeof(GF_NetworkCommand));
com.command_type = GF_NET_BUFFER_QUERY;
if (gf_dash_get_period_switch_status(mpdin->dash) != 1) {
gf_service_command(mpdin->service, &com, GF_OK);
//we only switch period once no more data is in our buffers
if (!com.buffer.occupancy) {
param->url_query.in_end_of_period = 0;
gf_dash_request_period_switch(mpdin->dash);
}
}
if (param->url_query.in_end_of_period)
return GF_BUFFER_TOO_SMALL;
} else {
return GF_EOS;
}
}
if (check_current_download && mpdin->use_low_latency) {
Bool is_switched=GF_FALSE;
gf_dash_group_probe_current_download_segment_location(mpdin->dash, group_idx, ¶m->url_query.next_url, NULL, ¶m->url_query.next_url_init_or_switch_segment, &src_url, &is_switched);
if (param->url_query.next_url) {
param->url_query.current_download = 1;
param->url_query.has_new_data = group->has_new_data;
param->url_query.discontinuity_type = is_switched ? 1 : 0;
if (gf_dash_group_loop_detected(mpdin->dash, group_idx))
param->url_query.discontinuity_type = 2;
group->has_new_data = 0;
return GF_OK;
}
return GF_BUFFER_TOO_SMALL;
}
return GF_BUFFER_TOO_SMALL;
}
param->url_query.current_download = 0;
nb_segments_cached = gf_dash_group_get_num_segments_ready(mpdin->dash, group_idx, &group_done);
if (nb_segments_cached < 1) {
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] No more file in cache, EOS\n"));
return GF_EOS;
} else {
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Had to wait for %u ms for the only cache file to be downloaded\n", (gf_sys_clock() - timer)));
}
e = gf_dash_group_get_next_segment_location(mpdin->dash, group_idx, param->url_query.dependent_representation_index, ¶m->url_query.next_url, ¶m->url_query.start_range, ¶m->url_query.end_range,
NULL, ¶m->url_query.next_url_init_or_switch_segment, ¶m->url_query.switch_start_range , ¶m->url_query.switch_end_range,
&src_url, ¶m->url_query.has_next);
if (e)
return e;
if (gf_dash_group_loop_detected(mpdin->dash, group_idx))
param->url_query.discontinuity_type = 2;
#ifndef GPAC_DISABLE_LOG
{
u32 timer2 = gf_sys_clock() - timer ;
if (timer2 > 1000) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Waiting for download to end took a long time : %u ms\n", timer2));
}
if (param->url_query.end_range) {
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] Next Segment is %s bytes "LLD"-"LLD"\n", src_url, param->url_query.start_range, param->url_query.end_range));
} else {
GF_LOG(GF_LOG_INFO, GF_LOG_DASH, ("[MPD_IN] Next Segment is %s\n", src_url));
}
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Waited %d ms - Elements in cache: %u/%u\n\tCache file name %s\n\tsegment start time %g sec\n", timer2, gf_dash_group_get_num_segments_ready(mpdin->dash, group_idx, &group_done), gf_dash_group_get_max_segments_in_cache(mpdin->dash, group_idx), param->url_query.next_url, gf_dash_group_current_segment_start_time(mpdin->dash, group_idx) ));
}
#endif
}
return GF_OK;
}