GF_Err MPD_ServiceCommand(GF_InputService *plug, GF_NetworkCommand *com)
{
s32 idx;
GF_Err e;
GF_MPD_In *mpdin = (GF_MPD_In*) plug->priv;
GF_InputService *segment_ifce = NULL;
if (!plug || !plug->priv || !com ) return GF_SERVICE_ERROR;
segment_ifce = MPD_GetInputServiceForChannel(mpdin, com->base.on_channel);
switch (com->command_type) {
case GF_NET_SERVICE_INFO:
{
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Info command from terminal on Service (%p)\n", mpdin->service));
e = GF_OK;
if (segment_ifce) {
/* defer to the real input service */
e = segment_ifce->ServiceCommand(segment_ifce, com);
}
if (e!= GF_OK || !com->info.name || 2 > strlen(com->info.name)) {
gf_dash_get_info(mpdin->dash, &com->info.name, &com->info.comment);
}
return GF_OK;
}
/*we could get it from MPD*/
case GF_NET_SERVICE_HAS_AUDIO:
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Has Audio command from terminal on Service (%p)\n", mpdin->service));
if (segment_ifce) {
/* defer to the real input service */
return segment_ifce->ServiceCommand(segment_ifce, com);
}
return GF_NOT_SUPPORTED;
case GF_NET_SERVICE_HAS_FORCED_VIDEO_SIZE:
com->par.width = mpdin->use_max_res ? mpdin->width : 0;
com->par.height = mpdin->use_max_res ? mpdin->height : 0;
return GF_OK;
case GF_NET_SERVICE_QUALITY_SWITCH:
gf_dash_switch_quality(mpdin->dash, com->switch_quality.up, mpdin->immediate_switch);
return GF_OK;
}
/*not supported*/
if (!com->base.on_channel) return GF_NOT_SUPPORTED;
segment_ifce = MPD_GetInputServiceForChannel(mpdin, com->base.on_channel);
if (!segment_ifce) return GF_NOT_SUPPORTED;
switch (com->command_type) {
case GF_NET_CHAN_INTERACTIVE:
/* we are interactive (that's the whole point of MPD) */
return GF_OK;
/*we should get it from MPD minBufferTime*/
case GF_NET_CHAN_BUFFER:
return segment_ifce->ServiceCommand(segment_ifce, com);
break;
case GF_NET_CHAN_DURATION:
/* Ignore the duration given by the input service and use the one given in the MPD
Note: the duration of the initial segment will be 0 anyway (in MP4).*/
com->duration.duration = gf_dash_get_duration(mpdin->dash);
return GF_OK;
case GF_NET_CHAN_PLAY:
/*don't seek if this command is the first PLAY request of objects declared by the subservice*/
if (!com->play.initial_broadcast_play) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Play command from terminal on channel %p on Service (%p)\n", com->base.on_channel, mpdin->service));
if (!gf_dash_in_period_setup(mpdin->dash) && !com->play.dash_segment_switch && ! mpdin->in_seek) {
Bool skip_seek;
mpdin->in_seek = 1;
/*if start range request is the same as previous one, don't process it
- this happens at period switch when new objects are declared*/
skip_seek = (mpdin->previous_start_range==com->play.start_range) ? 1 : 0;
mpdin->previous_start_range = com->play.start_range;
gf_dash_seek(mpdin->dash, com->play.start_range);
}
/*For MPEG-2 TS or formats not using Init Seg: since objects are declared and started once the first
segment is playing, we will stay in playback_start_range!=-1 until next segment (because we won't have a query_next),
which will prevent seeking until then ... we force a reset of playback_start_range to allow seeking asap*/
else if (mpdin->in_seek && (com->play.start_range==0)) {
// mpdin->in_seek = 0;
}
else if (gf_dash_in_period_setup(mpdin->dash) && (com->play.start_range==0)) {
com->play.start_range = gf_dash_get_playback_start_range(mpdin->dash);
}
idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx>=0) {
gf_dash_set_group_done(mpdin->dash, idx, 0);
com->play.dash_segment_switch = gf_dash_group_segment_switch_forced(mpdin->dash, idx);
}
/*don't forward commands, we are killing the service anyway ...*/
if (gf_dash_get_period_switch_status(mpdin->dash) ) return GF_OK;
}
return segment_ifce->ServiceCommand(segment_ifce, com);
case GF_NET_CHAN_STOP:
{
s32 idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx>=0) {
gf_dash_set_group_done(mpdin->dash, (u32) idx, 1);
}
}
return segment_ifce->ServiceCommand(segment_ifce, com);
/*we could get it from MPD*/
case GF_NET_CHAN_GET_PIXEL_AR:
/* defer to the real input service */
return segment_ifce->ServiceCommand(segment_ifce, com);
case GF_NET_CHAN_SET_SPEED:
return segment_ifce->ServiceCommand(segment_ifce, com);
default:
return segment_ifce->ServiceCommand(segment_ifce, com);
}
}
GF_Err MPD_ServiceCommand(GF_InputService *plug, GF_NetworkCommand *com)
{
s32 idx;
GF_Err e;
GF_MPD_In *mpdin = (GF_MPD_In*) plug->priv;
GF_InputService *segment_ifce = NULL;
if (!plug || !plug->priv || !com ) return GF_SERVICE_ERROR;
segment_ifce = MPD_GetInputServiceForChannel(mpdin, com->base.on_channel);
switch (com->command_type) {
case GF_NET_SERVICE_INFO:
{
s32 idx;
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Info command from terminal on Service (%p)\n", mpdin->service));
e = GF_OK;
if (segment_ifce) {
/* defer to the real input service */
e = segment_ifce->ServiceCommand(segment_ifce, com);
}
if (e!= GF_OK || !com->info.name || 2 > strlen(com->info.name)) {
gf_dash_get_info(mpdin->dash, &com->info.name, &com->info.comment);
}
idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx>=0) {
//gather role and co
if (!com->info.role) {
gf_dash_group_enum_descriptor(mpdin->dash, idx, GF_MPD_DESC_ROLE, 0, NULL, NULL, &com->info.role);
}
if (!com->info.accessibility) {
gf_dash_group_enum_descriptor(mpdin->dash, idx, GF_MPD_DESC_ACCESSIBILITY, 0, NULL, NULL, &com->info.accessibility);
}
if (!com->info.rating) {
gf_dash_group_enum_descriptor(mpdin->dash, idx, GF_MPD_DESC_RATING, 0, NULL, NULL, &com->info.rating);
}
}
return GF_OK;
}
/*we could get it from MPD*/
case GF_NET_SERVICE_HAS_AUDIO:
case GF_NET_SERVICE_FLUSH_DATA:
if (segment_ifce) {
/* defer to the real input service */
return segment_ifce->ServiceCommand(segment_ifce, com);
}
return GF_NOT_SUPPORTED;
case GF_NET_SERVICE_HAS_FORCED_VIDEO_SIZE:
com->par.width = mpdin->use_max_res ? mpdin->width : 0;
com->par.height = mpdin->use_max_res ? mpdin->height : 0;
return GF_OK;
case GF_NET_SERVICE_QUALITY_SWITCH:
if (com->switch_quality.set_auto) {
gf_dash_set_automatic_switching(mpdin->dash, 1);
} else if (com->base.on_channel) {
segment_ifce = MPD_GetInputServiceForChannel(mpdin, com->base.on_channel);
if (!segment_ifce) return GF_NOT_SUPPORTED;
idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx < 0) return GF_BAD_PARAM;
gf_dash_set_automatic_switching(mpdin->dash, 0);
gf_dash_group_select_quality(mpdin->dash, idx, com->switch_quality.ID);
} else {
gf_dash_switch_quality(mpdin->dash, com->switch_quality.up, mpdin->immediate_switch);
}
return GF_OK;
case GF_NET_GET_TIMESHIFT:
com->timeshift.time = gf_dash_get_timeshift_buffer_pos(mpdin->dash);
return GF_OK;
default:
break;
}
/*not supported*/
if (!com->base.on_channel) return GF_NOT_SUPPORTED;
segment_ifce = MPD_GetInputServiceForChannel(mpdin, com->base.on_channel);
if (!segment_ifce) return GF_NOT_SUPPORTED;
switch (com->command_type) {
case GF_NET_CHAN_INTERACTIVE:
/* TODO - we are interactive if not live without timeshift */
return GF_OK;
case GF_NET_GET_STATS:
{
idx = MPD_GetGroupIndexForChannel(mpdin, com->base.on_channel);
if (idx < 0) return GF_BAD_PARAM;
com->net_stats.bw_down = 8 * gf_dash_group_get_download_rate(mpdin->dash, idx);
}
return GF_OK;
case GF_NET_SERVICE_QUALITY_QUERY:
{
GF_DASHQualityInfo qinfo;
GF_Err e;
u32 count;
idx = MPD_GetGroupIndexForChannel(mpdin, com->quality_query.on_channel);
if (idx < 0) return GF_BAD_PARAM;
count = gf_dash_group_get_num_qualities(mpdin->dash, idx);
if (!com->quality_query.index) {
com->quality_query.index = count;
return GF_OK;
}
if (com->quality_query.index>count) return GF_BAD_PARAM;
e = gf_dash_group_get_quality_info(mpdin->dash, idx, com->quality_query.index-1, &qinfo);
if (e) return e;
com->quality_query.bandwidth = qinfo.bandwidth;
com->quality_query.ID = qinfo.ID;
com->quality_query.mime = qinfo.mime;
com->quality_query.codec = qinfo.codec;
com->quality_query.width = qinfo.width;
com->quality_query.height = qinfo.height;
com->quality_query.interlaced = qinfo.interlaced;
if (qinfo.fps_den) {
com->quality_query.fps = qinfo.fps_num;
com->quality_query.fps /= qinfo.fps_den;
}
com->quality_query.par_num = qinfo.par_num;
com->quality_query.par_den = qinfo.par_den;
com->quality_query.sample_rate = qinfo.sample_rate;
com->quality_query.nb_channels = qinfo.nb_channels;
com->quality_query.disabled = qinfo.disabled;
com->quality_query.is_selected = qinfo.is_selected;
com->quality_query.automatic = gf_dash_get_automatic_switching(mpdin->dash);
return GF_OK;
}
break;
case GF_NET_CHAN_BUFFER:
/*get it from MPD minBufferTime - if not in low latency mode, indicate the value given in MPD (not possible to fetch segments earlier) - to be more precise we should get the min segment duration for this group*/
if (!mpdin->use_low_latency && (mpdin->buffer_mode>=MPDIN_BUFFER_MIN) ) {
u32 max = gf_dash_get_min_buffer_time(mpdin->dash);
if (max>com->buffer.max)
com->buffer.max = max;
if (! gf_dash_is_dynamic_mpd(mpdin->dash)) {
com->buffer.min = 1;
}
}
return GF_OK;
case GF_NET_CHAN_DURATION:
com->duration.duration = gf_dash_get_duration(mpdin->dash);
idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx >= 0) {
com->duration.time_shift_buffer = gf_dash_group_get_time_shift_buffer_depth(mpdin->dash, idx);
}
return GF_OK;
case GF_NET_CHAN_PLAY:
idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx < 0) return GF_BAD_PARAM;
//adjust play range from media timestamps to MPD time
if (com->play.timestamp_based) {
u32 timescale;
u64 pto;
Double offset;
GF_MPDGroup *group = gf_dash_get_group_udta(mpdin->dash, idx);
if (com->play.timestamp_based==1) {
gf_dash_group_get_presentation_time_offset(mpdin->dash, idx, &pto, ×cale);
offset = (Double) pto;
offset /= timescale;
com->play.start_range -= offset;
if (com->play.start_range < 0) com->play.start_range = 0;
}
group->is_timestamp_based = 1;
group->pto_setup = 0;
mpdin->media_start_range = com->play.start_range;
} else {
GF_MPDGroup *group = gf_dash_get_group_udta(mpdin->dash, idx);
group->is_timestamp_based = 0;
group->pto_setup = 0;
if (com->play.start_range<0) com->play.start_range = 0;
}
//we cannot handle seek request outside of a period being setup, this messes up our internal service setup
//we postpone the seek and will request it later on ...
if (gf_dash_in_period_setup(mpdin->dash)) {
u64 p_end = gf_dash_get_period_duration(mpdin->dash);
if (p_end) {
p_end += gf_dash_get_period_start(mpdin->dash);
if (p_end<1000*com->play.start_range) {
mpdin->seek_request = com->play.start_range;
return GF_OK;
}
}
}
gf_dash_set_speed(mpdin->dash, com->play.speed);
/*don't seek if this command is the first PLAY request of objects declared by the subservice*/
if (! mpdin->in_seek && (!com->play.initial_broadcast_play || (com->play.start_range>2.0) ) ) {
Bool skip_seek;
GF_LOG(GF_LOG_DEBUG, GF_LOG_DASH, ("[MPD_IN] Received Play command from terminal on channel %p on Service (%p)\n", com->base.on_channel, mpdin->service));
mpdin->in_seek = 1;
/*if start range request is the same as previous one, don't process it
- this happens at period switch when new objects are declared*/
skip_seek = 0;
if (com->play.initial_broadcast_play && (mpdin->previous_start_range==com->play.start_range))
skip_seek = 1;
mpdin->previous_start_range = com->play.start_range;
if (!skip_seek) {
if (com->play.end_range<=0) {
u32 ms = (u32) ( 1000 * (-com->play.end_range) );
if (ms<1000) ms = 0;
gf_dash_set_timeshift(mpdin->dash, ms);
}
gf_dash_seek(mpdin->dash, com->play.start_range);
//we have issued a seek request, mark the group as seeking
if (mpdin->in_seek) {
//group->in_seek = 1;
}
//and check if current segment playback should be aborted
com->play.dash_segment_switch = gf_dash_group_segment_switch_forced(mpdin->dash, idx);
}
//to remove once we manage to keep the service alive
/*don't forward commands if a switch of period is to be scheduled, we are killing the service anyway ...*/
if (gf_dash_get_period_switch_status(mpdin->dash) ) return GF_OK;
}
gf_dash_group_select(mpdin->dash, idx, GF_TRUE);
gf_dash_set_group_done(mpdin->dash, (u32) idx, 0);
//adjust start range from MPD time to media time
{
u64 pto;
u32 timescale;
com->play.start_range = gf_dash_group_get_start_range(mpdin->dash, idx);
gf_dash_group_get_presentation_time_offset(mpdin->dash, idx, &pto, ×cale);
com->play.start_range += ((Double)pto ) / timescale;
}
return segment_ifce->ServiceCommand(segment_ifce, com);
case GF_NET_CHAN_STOP:
{
s32 idx = MPD_GetGroupIndexForChannel(mpdin, com->play.on_channel);
if (idx>=0) {
gf_dash_set_group_done(mpdin->dash, (u32) idx, 1);
}
mpdin->previous_start_range = -1;
}
return segment_ifce->ServiceCommand(segment_ifce, com);
/*we could get it from MPD*/
case GF_NET_CHAN_GET_PIXEL_AR:
/* defer to the real input service */
return segment_ifce->ServiceCommand(segment_ifce, com);
case GF_NET_CHAN_SET_SPEED:
gf_dash_set_speed(mpdin->dash, com->play.speed);
return segment_ifce->ServiceCommand(segment_ifce, com);
default:
return segment_ifce->ServiceCommand(segment_ifce, com);
}
}
