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;
}
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;
}