itten/DMF-Studio
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

decklink-out: non-blocking frame pool, skip late frames instead of realign, 5 preroll frames

Browse Source
This commit is contained in:
Johanness
2026-05-30 23:24:54 +03:00
parent bd1f060c73
commit b434c61b86
1 changed files with 8 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
nodes/decklink-out/src/decklink_out_node.cpp
+8 -7
View File
@@ -157,7 +157,7 @@ bool DeckLinkOutNode::open_device() {
is_interlaced_);
}
preroll_frames_ = 3;
preroll_frames_ = 5;
for (int i = 0; i < preroll_frames_; ++i) {
IDeckLinkMutableVideoFrame* frame = nullptr;
int32_t out_row_bytes = out_width_ * 16 / 6;
@@ -239,8 +239,8 @@ void DeckLinkOutNode::schedule_frame(void* mxl_payload, long width, long height,
IDeckLinkMutableVideoFrame* frame = nullptr;
{
std::unique_lock<std::mutex> lock(frame_pool_mutex_);
if (frame_pool_cv_.wait_for(lock, std::chrono::milliseconds(100), [this] { return !frame_pool_.empty(); })) {
std::lock_guard<std::mutex> lock(frame_pool_mutex_);
if (!frame_pool_.empty()) {
frame = frame_pool_.back();
frame_pool_.pop_back();
}
@@ -295,16 +295,18 @@ void DeckLinkOutNode::process() {
uint8_t* payload = nullptr;
auto status = mxlFlowReaderGetGrain(*reader_, source_index, 5000000ULL, &grain_info, &payload);
if (status != MXL_STATUS_OK) {
if (status == MXL_ERR_OUT_OF_RANGE_TOO_LATE || status == MXL_ERR_OUT_OF_RANGE_TOO_EARLY) {
if (status == MXL_ERR_OUT_OF_RANGE_TOO_LATE) {
auto now = mxlGetTime();
auto current_index = mxlTimestampToIndex(&flow_rate_, now);
spdlog::warn("DeckLink-out: realigned from {} to {}", source_index, current_index - 2);
spdlog::warn("DeckLink-out: grain too late, skipping to index {}", current_index - 2);
source_index = current_index - 2;
status = mxlFlowReaderGetGrain(*reader_, source_index, 5000000ULL, &grain_info, &payload);
if (status != MXL_STATUS_OK) {
grains_read_++;
return;
}
} else if (status == MXL_ERR_OUT_OF_RANGE_TOO_EARLY) {
return;
} else {
return;
}
@@ -320,7 +322,6 @@ void DeckLinkOutNode::process() {
schedule_frame(payload, src_width, src_height, src_row_bytes);
read_index_ = source_index + 1;
grains_read_++;
if (grains_read_ == 1) {