static void audiosource_traverse(GF_Node *node, void *rs, Bool is_destroy)
{
GF_TraverseState*tr_state = (GF_TraverseState*)rs;
M_AudioSource *as = (M_AudioSource *)node;
AudioSourceStack *st = (AudioSourceStack *)gf_node_get_private(node);
if (is_destroy) {
gf_sc_audio_predestroy(&st->input);
if (st->time_handle.is_registered) {
gf_sc_unregister_time_node(st->input.compositor, &st->time_handle);
}
gf_free(st);
return;
}
/*check end of stream*/
if (st->input.stream && st->input.stream_finished) {
if (gf_mo_get_loop(st->input.stream, 0)) {
gf_sc_audio_restart(&st->input);
} else if (st->is_active && gf_mo_should_deactivate(st->input.stream)) {
/*deactivate*/
audiosource_deactivate(st, as);
}
}
if (st->is_active) {
gf_sc_audio_register(&st->input, (GF_TraverseState*)rs);
}
/*store mute flag*/
st->input.is_muted = tr_state->switched_off;
}
static void audioclip_traverse(GF_Node *node, void *rs, Bool is_destroy)
{
GF_TraverseState *tr_state = (GF_TraverseState *)rs;
M_AudioClip *ac = (M_AudioClip *)node;
AudioClipStack *st = (AudioClipStack *)gf_node_get_private(node);
if (is_destroy) {
gf_sc_audio_predestroy(&st->input);
if (st->time_handle.is_registered) {
gf_sc_unregister_time_node(st->input.compositor, &st->time_handle);
}
gf_free(st);
return;
}
if (st->failure) return;
/*check end of stream*/
if (st->input.stream && st->input.stream_finished) {
if (gf_mo_get_loop(st->input.stream, ac->loop)) {
gf_sc_audio_restart(&st->input);
} else if (ac->isActive && gf_mo_should_deactivate(st->input.stream)) {
/*deactivate*/
audioclip_deactivate(st, ac);
}
}
if (ac->isActive) {
gf_sc_audio_register(&st->input, (GF_TraverseState*)rs);
}
if (st->set_duration && st->input.stream) {
ac->duration_changed = gf_mo_get_duration(st->input.stream);
gf_node_event_out_str(node, "duration_changed");
st->set_duration = 0;
}
/*store mute flag*/
st->input.is_muted = tr_state->switched_off;
}
/*we have no choice but always browsing the children, since a src can be replaced by a new one
without the parent being modified. We just collect the src and check against the current mixer inputs
to reset the mixer or not - the spec is not clear about that btw, shall rebuffering happen if a source is modified or not ...*/
static void audiobuffer_traverse(GF_Node *node, void *rs, Bool is_destroy)
{
u32 j;
Bool update_mixer;
GF_ChildNodeItem *l;
GF_AudioGroup *parent;
AudioBufferStack *st = (AudioBufferStack *)gf_node_get_private(node);
M_AudioBuffer *ab = (M_AudioBuffer *)node;
GF_TraverseState*tr_state = (GF_TraverseState*) rs;
if (is_destroy) {
gf_sc_audio_unregister(&st->output);
if (st->time_handle.is_registered)
gf_sc_unregister_time_node(st->output.compositor, &st->time_handle);
gf_mixer_del(st->am);
if (st->buffer) gf_free(st->buffer);
gf_list_del(st->new_inputs);
gf_free(st);
return;
}
parent = tr_state->audio_parent;
tr_state->audio_parent = (GF_AudioGroup *) st;
l = ab->children;
while (l) {
gf_node_traverse(l->node, tr_state);
l = l->next;
}
gf_mixer_lock(st->am, 1);
/*if no new inputs don't change mixer config*/
update_mixer = gf_list_count(st->new_inputs) ? 1 : 0;
if (gf_mixer_get_src_count(st->am) == gf_list_count(st->new_inputs)) {
u32 count = gf_list_count(st->new_inputs);
update_mixer = 0;
for (j=0; j<count; j++) {
GF_AudioInput *cur = (GF_AudioInput *)gf_list_get(st->new_inputs, j);
if (!gf_mixer_is_src_present(st->am, &cur->input_ifce)) {
update_mixer = 1;
break;
}
}
}
if (update_mixer) {
gf_mixer_remove_all(st->am);
gf_mixer_force_chanel_out(st->am, ab->numChan);
}
while (gf_list_count(st->new_inputs)) {
GF_AudioInput *src = (GF_AudioInput *)gf_list_get(st->new_inputs, 0);
gf_list_rem(st->new_inputs, 0);
if (update_mixer) gf_mixer_add_input(st->am, &src->input_ifce);
}
gf_mixer_lock(st->am, 0);
tr_state->audio_parent = parent;
/*Note the audio buffer is ALWAYS registered untill destroyed since buffer filling shall happen even when inactive*/
if (!st->output.register_with_parent || !st->output.register_with_renderer)
gf_sc_audio_register(&st->output, tr_state);
/*store mute flag*/
st->is_muted = tr_state->switched_off;
}
static void svg_traverse_audio_ex(GF_Node *node, void *rs, Bool is_destroy, SVGPropertiesPointers *props)
{
SVGAllAttributes all_atts;
SVGPropertiesPointers backup_props;
u32 backup_flags, restore;
GF_TraverseState *tr_state = (GF_TraverseState*)rs;
SVG_audio_stack *stack = (SVG_audio_stack *)gf_node_get_private(node);
if (is_destroy) {
gf_sc_audio_predestroy(&stack->input);
gf_sg_mfurl_del(stack->aurl);
gf_free(stack);
return;
}
if (stack->is_active) {
gf_sc_audio_register(&stack->input, (GF_TraverseState*)rs);
}
restore = 0;
if (!props) {
restore = 1;
gf_svg_flatten_attributes((SVG_Element *)node, &all_atts);
if (!compositor_svg_traverse_base(node, &all_atts, (GF_TraverseState *)rs, &backup_props, &backup_flags))
return;
props = tr_state->svg_props;
}
if (gf_node_dirty_get(node) & GF_SG_SVG_XLINK_HREF_DIRTY) {
SVGAllAttributes atts;
Bool lock_timeline = GF_FALSE;
if (stack->is_active)
gf_sc_audio_stop(&stack->input);
stack->is_error = GF_FALSE;
gf_node_dirty_clear(node, GF_SG_SVG_XLINK_HREF_DIRTY);
gf_term_get_mfurl_from_xlink(node, &(stack->aurl));
gf_svg_flatten_attributes((SVG_Element*) node, &atts);
if (atts.syncBehavior) lock_timeline = (*atts.syncBehavior == SMIL_SYNCBEHAVIOR_LOCKED) ? GF_TRUE : GF_FALSE;
if (stack->aurl.count && (gf_sc_audio_open(&stack->input, &stack->aurl,
atts.clipBegin ? (*atts.clipBegin) : 0.0,
atts.clipEnd ? (*atts.clipEnd) : -1.0,
lock_timeline) == GF_OK)
) {
gf_mo_set_speed(stack->input.stream, FIX_ONE);
stack->is_active = GF_TRUE;
} else if (stack->is_active) {
gf_sc_audio_unregister(&stack->input);
stack->is_active = GF_FALSE;
}
}
/*store mute flag*/
stack->input.is_muted = GF_FALSE;
if (tr_state->switched_off
|| compositor_svg_is_display_off(props)
|| (*(props->visibility) == SVG_VISIBILITY_HIDDEN) ) {
stack->input.is_muted = GF_TRUE;
}
stack->input.intensity = tr_state->svg_props->computed_audio_level;
if (restore) {
memcpy(tr_state->svg_props, &backup_props, sizeof(SVGPropertiesPointers));
tr_state->svg_flags = backup_flags;
}
}