*/
#include "../StdAfx.h"
-
+
#include "decklink_consumer.h"
#include "../util/util.h"
+#include "../decklink.h"
#include "../decklink_api.h"
#include <common/cache_aligned_vector.h>
#include <common/timer.h>
#include <common/param.h>
+#include <common/software_version.h>
#include <tbb/concurrent_queue.h>
#include <boost/lexical_cast.hpp>
#include <boost/circular_buffer.hpp>
#include <boost/property_tree/ptree.hpp>
+#include <boost/thread/mutex.hpp>
+
+#include <future>
+
+namespace caspar { namespace decklink {
-namespace caspar { namespace decklink {
-
struct configuration
{
enum class keyer_t
int device_index = 1;
int key_device_idx = 0;
- bool embedded_audio = true;
+ bool embedded_audio = false;
keyer_t keyer = keyer_t::default_keyer;
latency_t latency = latency_t::default_latency;
bool key_only = false;
int base_buffer_depth = 3;
core::audio_channel_layout out_channel_layout = core::audio_channel_layout::invalid();
-
+
int buffer_depth() const
{
- return base_buffer_depth + (latency == latency_t::low_latency ? 0 : 1) + (embedded_audio ? 1 : 0);
+ return base_buffer_depth + (latency == latency_t::low_latency ? 0 : 1);
}
int key_device_index() const
}
};
+template <typename Configuration>
void set_latency(
- const com_iface_ptr<IDeckLinkConfiguration>& config,
+ const com_iface_ptr<Configuration>& config,
configuration::latency_t latency,
const std::wstring& print)
{
{
BOOL value = true;
if (SUCCEEDED(attributes->GetFlag(BMDDeckLinkSupportsInternalKeying, &value)) && !value)
- CASPAR_LOG(error) << print << L" Failed to enable internal keyer.";
+ CASPAR_LOG(error) << print << L" Failed to enable internal keyer.";
else if (FAILED(decklink_keyer->Enable(FALSE)))
- CASPAR_LOG(error) << print << L" Failed to enable internal keyer.";
+ CASPAR_LOG(error) << print << L" Failed to enable internal keyer.";
else if (FAILED(decklink_keyer->SetLevel(255)))
CASPAR_LOG(error) << print << L" Failed to set key-level to max.";
else
- CASPAR_LOG(info) << print << L" Enabled internal keyer.";
+ CASPAR_LOG(info) << print << L" Enabled internal keyer.";
}
else if (keyer == configuration::keyer_t::external_keyer)
{
BOOL value = true;
if (SUCCEEDED(attributes->GetFlag(BMDDeckLinkSupportsExternalKeying, &value)) && !value)
- CASPAR_LOG(error) << print << L" Failed to enable external keyer.";
- else if (FAILED(decklink_keyer->Enable(TRUE)))
- CASPAR_LOG(error) << print << L" Failed to enable external keyer.";
+ CASPAR_LOG(error) << print << L" Failed to enable external keyer.";
+ else if (FAILED(decklink_keyer->Enable(TRUE)))
+ CASPAR_LOG(error) << print << L" Failed to enable external keyer.";
else if (FAILED(decklink_keyer->SetLevel(255)))
CASPAR_LOG(error) << print << L" Failed to set key-level to max.";
else
- CASPAR_LOG(info) << print << L" Enabled external keyer.";
+ CASPAR_LOG(info) << print << L" Enabled external keyer.";
}
}
const core::video_format_desc format_desc_;
const bool key_only_;
+ bool needs_to_copy_;
cache_aligned_vector<no_init_proxy<uint8_t>> data_;
public:
- decklink_frame(core::const_frame frame, const core::video_format_desc& format_desc, bool key_only)
+ decklink_frame(core::const_frame frame, const core::video_format_desc& format_desc, bool key_only, bool will_attempt_dma)
: frame_(frame)
, format_desc_(format_desc)
, key_only_(key_only)
{
ref_count_ = 0;
+
+ bool dma_transfer_from_gl_buffer_impossible;
+
+#if !defined(_MSC_VER)
+ // On Linux Decklink cannot DMA transfer from memory returned by glMapBuffer (at least on nvidia)
+ dma_transfer_from_gl_buffer_impossible = true;
+#else
+ // On Windows it is possible.
+ dma_transfer_from_gl_buffer_impossible = false;
+#endif
+
+ needs_to_copy_ = will_attempt_dma && dma_transfer_from_gl_buffer_impossible;
}
-
+
// IUnknown
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID*)
{
return E_NOINTERFACE;
}
-
+
virtual ULONG STDMETHODCALLTYPE AddRef()
{
return ++ref_count_;
virtual ULONG STDMETHODCALLTYPE Release()
{
if(--ref_count_ == 0)
+ {
delete this;
+
+ return 0;
+ }
+
return ref_count_;
}
virtual long STDMETHODCALLTYPE GetRowBytes() {return static_cast<long>(format_desc_.width*4);}
virtual BMDPixelFormat STDMETHODCALLTYPE GetPixelFormat() {return bmdFormat8BitBGRA;}
virtual BMDFrameFlags STDMETHODCALLTYPE GetFlags() {return bmdFrameFlagDefault;}
-
+
virtual HRESULT STDMETHODCALLTYPE GetBytes(void** buffer)
{
try
{
*buffer = const_cast<uint8_t*>(frame_.image_data().begin());
-#if !defined(_MSC_VER)
- // On Linux Decklink cannot DMA transfer from memory returned by glMapBuffer
- data_.resize(frame_.image_data().size());
- fast_memcpy(data_.data(), *buffer, frame_.image_data().size());
- *buffer = data_.data();
-#endif
+ if (needs_to_copy_)
+ {
+ data_.resize(frame_.image_data().size());
+ fast_memcpy(data_.data(), *buffer, frame_.image_data().size());
+ *buffer = data_.data();
+ }
}
}
catch(...)
return S_OK;
}
-
+
virtual HRESULT STDMETHODCALLTYPE GetTimecode(BMDTimecodeFormat format, IDeckLinkTimecode** timecode) {return S_FALSE;}
virtual HRESULT STDMETHODCALLTYPE GetAncillaryData(IDeckLinkVideoFrameAncillary** ancillary) {return S_FALSE;}
- // decklink_frame
+ // decklink_frame
const core::audio_buffer& audio_data()
{
}
};
+template <typename Configuration>
struct key_video_context : public IDeckLinkVideoOutputCallback, boost::noncopyable
{
- const configuration config_;
- com_ptr<IDeckLink> decklink_ = get_device(config_.key_device_index());
- com_iface_ptr<IDeckLinkOutput> output_ = iface_cast<IDeckLinkOutput>(decklink_);
- com_iface_ptr<IDeckLinkKeyer> keyer_ = iface_cast<IDeckLinkKeyer>(decklink_);
- com_iface_ptr<IDeckLinkAttributes> attributes_ = iface_cast<IDeckLinkAttributes>(decklink_);
- com_iface_ptr<IDeckLinkConfiguration> configuration_ = iface_cast<IDeckLinkConfiguration>(decklink_);
- tbb::atomic<int64_t> current_presentation_delay_;
- tbb::atomic<int64_t> scheduled_frames_completed_;
+ const configuration config_;
+ com_ptr<IDeckLink> decklink_ = get_device(config_.key_device_index());
+ com_iface_ptr<IDeckLinkOutput> output_ = iface_cast<IDeckLinkOutput>(decklink_);
+ com_iface_ptr<IDeckLinkKeyer> keyer_ = iface_cast<IDeckLinkKeyer>(decklink_, true);
+ com_iface_ptr<IDeckLinkAttributes> attributes_ = iface_cast<IDeckLinkAttributes>(decklink_);
+ com_iface_ptr<Configuration> configuration_ = iface_cast<Configuration>(decklink_);
+ tbb::atomic<int64_t> current_presentation_delay_;
+ tbb::atomic<int64_t> scheduled_frames_completed_;
key_video_context(const configuration& config, const std::wstring& print)
: config_(config)
}
};
-struct decklink_consumer : public IDeckLinkVideoOutputCallback, public IDeckLinkAudioOutputCallback, boost::noncopyable
-{
+template <typename Configuration>
+struct decklink_consumer : public IDeckLinkVideoOutputCallback, boost::noncopyable
+{
const int channel_index_;
const configuration config_;
com_ptr<IDeckLink> decklink_ = get_device(config_.device_index);
com_iface_ptr<IDeckLinkOutput> output_ = iface_cast<IDeckLinkOutput>(decklink_);
- com_iface_ptr<IDeckLinkConfiguration> configuration_ = iface_cast<IDeckLinkConfiguration>(decklink_);
- com_iface_ptr<IDeckLinkKeyer> keyer_ = iface_cast<IDeckLinkKeyer>(decklink_);
+ com_iface_ptr<Configuration> configuration_ = iface_cast<Configuration>(decklink_);
+ com_iface_ptr<IDeckLinkKeyer> keyer_ = iface_cast<IDeckLinkKeyer>(decklink_, true);
com_iface_ptr<IDeckLinkAttributes> attributes_ = iface_cast<IDeckLinkAttributes>(decklink_);
tbb::spin_mutex exception_mutex_;
std::exception_ptr exception_;
tbb::atomic<bool> is_running_;
-
+
const std::wstring model_name_ = get_model_name(decklink_);
+ bool will_attempt_dma_;
const core::video_format_desc format_desc_;
const core::audio_channel_layout in_channel_layout_;
const core::audio_channel_layout out_channel_layout_ = config_.get_adjusted_layout(in_channel_layout_);
long long audio_scheduled_ = 0;
int preroll_count_ = 0;
-
+
boost::circular_buffer<std::vector<int32_t>> audio_container_ { buffer_size_ + 1 };
- tbb::concurrent_bounded_queue<core::const_frame> video_frame_buffer_;
- tbb::concurrent_bounded_queue<core::const_frame> audio_frame_buffer_;
-
+ tbb::concurrent_bounded_queue<core::const_frame> frame_buffer_;
+
spl::shared_ptr<diagnostics::graph> graph_;
caspar::timer tick_timer_;
- retry_task<bool> send_completion_;
+ boost::mutex send_completion_mutex_;
+ std::packaged_task<bool ()> send_completion_;
reference_signal_detector reference_signal_detector_ { output_ };
tbb::atomic<int64_t> current_presentation_delay_;
tbb::atomic<int64_t> scheduled_frames_completed_;
- std::unique_ptr<key_video_context> key_context_;
+ std::unique_ptr<key_video_context<Configuration>> key_context_;
public:
decklink_consumer(
const configuration& config,
const core::video_format_desc& format_desc,
const core::audio_channel_layout& in_channel_layout,
- int channel_index)
+ int channel_index)
: channel_index_(channel_index)
, config_(config)
, format_desc_(format_desc)
is_running_ = true;
current_presentation_delay_ = 0;
scheduled_frames_completed_ = 0;
-
- video_frame_buffer_.set_capacity(1);
- // Blackmagic calls RenderAudioSamples() 50 times per second
- // regardless of video mode so we sometimes need to give them
- // samples from 2 frames in order to keep up
- audio_frame_buffer_.set_capacity((format_desc.fps > 50.0) ? 2 : 1);
+ frame_buffer_.set_capacity(1);
if (config.keyer == configuration::keyer_t::external_separate_device_keyer)
- key_context_.reset(new key_video_context(config, print()));
+ key_context_.reset(new key_video_context<Configuration>(config, print()));
- graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
+ graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));
graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
graph_->set_color("flushed-frame", diagnostics::color(0.4f, 0.3f, 0.8f));
graph_->set_text(print());
diagnostics::register_graph(graph_);
-
- enable_video(get_display_mode(output_, format_desc_.format, bmdFormat8BitBGRA, bmdVideoOutputFlagDefault));
-
+
+ enable_video(get_display_mode(output_, format_desc_.format, bmdFormat8BitBGRA, bmdVideoOutputFlagDefault, will_attempt_dma_));
+
if(config.embedded_audio)
enable_audio();
-
- set_latency(configuration_, config.latency, print());
+
+ set_latency(configuration_, config.latency, print());
set_keyer(attributes_, keyer_, config.keyer, print());
- if(config.embedded_audio)
- output_->BeginAudioPreroll();
-
- for(int n = 0; n < buffer_size_; ++n)
+ if(config.embedded_audio)
+ output_->BeginAudioPreroll();
+
+ for (int n = 0; n < buffer_size_; ++n)
+ {
+ if (config.embedded_audio)
+ schedule_next_audio(core::mutable_audio_buffer(format_desc_.audio_cadence[n % format_desc_.audio_cadence.size()] * out_channel_layout_.num_channels, 0));
+
schedule_next_video(core::const_frame::empty());
+ }
+
+ if (config.embedded_audio)
+ {
+ // Preroll one extra frame worth of audio
+ schedule_next_audio(core::mutable_audio_buffer(format_desc_.audio_cadence[buffer_size_ % format_desc_.audio_cadence.size()] * out_channel_layout_.num_channels, 0));
+ output_->EndAudioPreroll();
+ }
- if(!config.embedded_audio)
- start_playback();
+ start_playback();
}
~decklink_consumer()
- {
+ {
is_running_ = false;
- video_frame_buffer_.try_push(core::const_frame::empty());
- audio_frame_buffer_.try_push(core::const_frame::empty());
+ frame_buffer_.try_push(core::const_frame::empty());
- if(output_ != nullptr)
+ if(output_ != nullptr)
{
output_->StopScheduledPlayback(0, nullptr, 0);
if(config_.embedded_audio)
output_->DisableVideoOutput();
}
}
-
+
void enable_audio()
{
if(FAILED(output_->EnableAudioOutput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, out_channel_layout_.num_channels, bmdAudioOutputStreamTimestamped)))
CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(print() + L" Could not enable audio output."));
-
- if(FAILED(output_->SetAudioCallback(this)))
- CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(print() + L" Could not set audio callback."));
CASPAR_LOG(info) << print() << L" Enabled embedded-audio.";
}
void enable_video(BMDDisplayMode display_mode)
{
- if(FAILED(output_->EnableVideoOutput(display_mode, bmdVideoOutputFlagDefault)))
+ if(FAILED(output_->EnableVideoOutput(display_mode, bmdVideoOutputFlagDefault)))
CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(print() + L" Could not enable fill video output."));
-
+
if(FAILED(output_->SetScheduledFrameCompletionCallback(this)))
- CASPAR_THROW_EXCEPTION(caspar_exception()
+ CASPAR_THROW_EXCEPTION(caspar_exception()
<< msg_info(print() + L" Failed to set fill playback completion callback.")
<< boost::errinfo_api_function("SetScheduledFrameCompletionCallback"));
void start_playback()
{
- if(FAILED(output_->StartScheduledPlayback(0, format_desc_.time_scale, 1.0)))
+ if(FAILED(output_->StartScheduledPlayback(0, format_desc_.time_scale, 1.0)))
CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(print() + L" Failed to schedule fill playback."));
if (key_context_ && FAILED(key_context_->output_->StartScheduledPlayback(0, format_desc_.time_scale, 1.0)))
CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(print() + L" Failed to schedule key playback."));
}
-
+
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID*) {return E_NOINTERFACE;}
virtual ULONG STDMETHODCALLTYPE AddRef() {return 1;}
virtual ULONG STDMETHODCALLTYPE Release() {return 1;}
-
+
virtual HRESULT STDMETHODCALLTYPE ScheduledPlaybackHasStopped()
{
is_running_ = false;
{
if(!is_running_)
return E_FAIL;
-
+
try
{
+ auto tick_time = tick_timer_.elapsed()*format_desc_.fps * 0.5;
+ graph_->set_value("tick-time", tick_time);
+ tick_timer_.restart();
+
+ reference_signal_detector_.detect_change([this]() { return print(); });
+
auto dframe = reinterpret_cast<decklink_frame*>(completed_frame);
current_presentation_delay_ = dframe->get_age_millis();
++scheduled_frames_completed_;
{
graph_->set_tag(diagnostics::tag_severity::WARNING, "late-frame");
video_scheduled_ += format_desc_.duration;
- audio_scheduled_ += dframe->audio_data().size() / out_channel_layout_.num_channels;
- //++video_scheduled_;
- //audio_scheduled_ += format_desc_.audio_cadence[0];
- //++audio_scheduled_;
+ audio_scheduled_ += dframe->audio_data().size() / in_channel_layout_.num_channels;
}
else if(result == bmdOutputFrameDropped)
graph_->set_tag(diagnostics::tag_severity::WARNING, "dropped-frame");
output_->GetBufferedVideoFrameCount(&buffered);
graph_->set_value("buffered-video", static_cast<double>(buffered) / (config_.buffer_depth()));
- auto frame = core::const_frame::empty();
- video_frame_buffer_.pop(frame);
- send_completion_.try_completion();
- schedule_next_video(frame);
- }
- catch(...)
- {
- lock(exception_mutex_, [&]
+ if (config_.embedded_audio)
{
- exception_ = std::current_exception();
- });
- return E_FAIL;
- }
+ output_->GetBufferedAudioSampleFrameCount(&buffered);
+ graph_->set_value("buffered-audio", static_cast<double>(buffered) / (format_desc_.audio_cadence[0] * config_.buffer_depth()));
+ }
+
+ auto frame = core::const_frame::empty();
+
+ frame_buffer_.pop(frame);
- return S_OK;
- }
-
- virtual HRESULT STDMETHODCALLTYPE RenderAudioSamples(BOOL preroll)
- {
- if(!is_running_)
- return E_FAIL;
-
- try
- {
- if(preroll)
{
- if(++preroll_count_ >= buffer_size_)
- {
- output_->EndAudioPreroll();
- start_playback();
- }
- else
+ boost::lock_guard<boost::mutex> lock(send_completion_mutex_);
+
+ if (send_completion_.valid())
{
- schedule_next_audio(core::mutable_audio_buffer(format_desc_.audio_cadence[preroll % format_desc_.audio_cadence.size()] * out_channel_layout_.num_channels, 0));
+ send_completion_();
+ send_completion_ = std::packaged_task<bool()>();
}
}
- else
- {
- auto frame = core::const_frame::empty();
- while(audio_frame_buffer_.try_pop(frame))
- {
- UINT32 buffered;
- output_->GetBufferedAudioSampleFrameCount(&buffered);
- graph_->set_value("buffered-audio", static_cast<double>(buffered) / (format_desc_.audio_cadence[0] * config_.buffer_depth()));
+ if (config_.embedded_audio)
+ schedule_next_audio(channel_remapper_.mix_and_rearrange(frame.audio_data()));
- send_completion_.try_completion();
- schedule_next_audio(channel_remapper_.mix_and_rearrange(frame.audio_data()));
- }
- }
+ schedule_next_video(frame);
}
catch(...)
{
- tbb::spin_mutex::scoped_lock lock(exception_mutex_);
- exception_ = std::current_exception();
+ lock(exception_mutex_, [&]
+ {
+ exception_ = std::current_exception();
+ });
return E_FAIL;
}
audio_scheduled_ += sample_frame_count;
}
-
+
void schedule_next_video(core::const_frame frame)
{
if (key_context_)
{
- auto key_frame = wrap_raw<com_ptr, IDeckLinkVideoFrame>(new decklink_frame(frame, format_desc_, true));
+ auto key_frame = wrap_raw<com_ptr, IDeckLinkVideoFrame>(new decklink_frame(frame, format_desc_, true, will_attempt_dma_));
if (FAILED(key_context_->output_->ScheduleVideoFrame(get_raw(key_frame), video_scheduled_, format_desc_.duration, format_desc_.time_scale)))
CASPAR_LOG(error) << print() << L" Failed to schedule key video.";
}
- auto fill_frame = wrap_raw<com_ptr, IDeckLinkVideoFrame>(new decklink_frame(frame, format_desc_, config_.key_only));
+ auto fill_frame = wrap_raw<com_ptr, IDeckLinkVideoFrame>(new decklink_frame(frame, format_desc_, config_.key_only, will_attempt_dma_));
if (FAILED(output_->ScheduleVideoFrame(get_raw(fill_frame), video_scheduled_, format_desc_.duration, format_desc_.time_scale)))
CASPAR_LOG(error) << print() << L" Failed to schedule fill video.";
video_scheduled_ += format_desc_.duration;
-
- graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);
- tick_timer_.restart();
-
- reference_signal_detector_.detect_change([this]() { return print(); });
}
std::future<bool> send(core::const_frame frame)
});
if(exception != nullptr)
- std::rethrow_exception(exception);
+ std::rethrow_exception(exception);
if(!is_running_)
CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info(print() + L" Is not running."));
-
- bool audio_ready = !config_.embedded_audio;
- bool video_ready = false;
- auto enqueue_task = [audio_ready, video_ready, frame, this]() mutable -> boost::optional<bool>
- {
- if (!audio_ready)
- audio_ready = audio_frame_buffer_.try_push(frame);
+ if (frame_buffer_.try_push(frame))
+ return make_ready_future(true);
- if (!video_ready)
- video_ready = video_frame_buffer_.try_push(frame);
+ boost::lock_guard<boost::mutex> lock(send_completion_mutex_);
- if (audio_ready && video_ready)
- return true;
- else
- return boost::optional<bool>();
- };
-
- if (enqueue_task())
- return make_ready_future(true);
+ send_completion_ = std::packaged_task<bool ()>([frame, this] () mutable -> bool
+ {
+ frame_buffer_.push(frame);
- send_completion_.set_task(enqueue_task);
+ return true;
+ });
return send_completion_.get_future();
}
-
+
std::wstring print() const
{
if (config_.keyer == configuration::keyer_t::external_separate_device_keyer)
}
};
+template <typename Configuration>
struct decklink_consumer_proxy : public core::frame_consumer
{
- core::monitor::subject monitor_subject_;
- const configuration config_;
- std::unique_ptr<decklink_consumer> consumer_;
- core::video_format_desc format_desc_;
- executor executor_;
+ core::monitor::subject monitor_subject_;
+ const configuration config_;
+ std::unique_ptr<decklink_consumer<Configuration>> consumer_;
+ core::video_format_desc format_desc_;
+ executor executor_;
public:
decklink_consumer_proxy(const configuration& config)
}
// frame_consumer
-
+
void initialize(const core::video_format_desc& format_desc, const core::audio_channel_layout& channel_layout, int channel_index) override
{
format_desc_ = format_desc;
executor_.invoke([=]
{
consumer_.reset();
- consumer_.reset(new decklink_consumer(config_, format_desc, channel_layout, channel_index));
+ consumer_.reset(new decklink_consumer<Configuration>(config_, format_desc, channel_layout, channel_index));
});
}
-
+
std::future<bool> send(core::const_frame frame) override
{
return consumer_->send(frame);
}
-
+
std::wstring print() const override
{
return consumer_ ? consumer_->print() : L"[decklink_consumer]";
- }
+ }
std::wstring name() const override
{
{
return monitor_subject_;
}
-};
+};
+
+const software_version<3>& get_driver_version()
+{
+ static software_version<3> version(u8(get_version()));
+
+ return version;
+}
+
+const software_version<3> get_new_configuration_api_version()
+{
+ static software_version<3> NEW_CONFIGURATION_API("10.2");
+
+ return NEW_CONFIGURATION_API;
+}
void describe_consumer(core::help_sink& sink, const core::help_repository& repo)
{
}
spl::shared_ptr<core::frame_consumer> create_consumer(
- const std::vector<std::wstring>& params, core::interaction_sink*)
+ const std::vector<std::wstring>& params, core::interaction_sink*, std::vector<spl::shared_ptr<core::video_channel>> channels)
{
if (params.size() < 1 || !boost::iequals(params.at(0), L"DECKLINK"))
return core::frame_consumer::empty();
-
+
configuration config;
-
+
if (params.size() > 1)
config.device_index = boost::lexical_cast<int>(params.at(1));
-
+
if (contains_param(L"INTERNAL_KEY", params))
config.keyer = configuration::keyer_t::internal_keyer;
else if (contains_param(L"EXTERNAL_KEY", params))
config.out_channel_layout = *found_layout;
}
- return spl::make_shared<decklink_consumer_proxy>(config);
+ bool old_configuration_api = get_driver_version() < get_new_configuration_api_version();
+
+ if (old_configuration_api)
+ return spl::make_shared<decklink_consumer_proxy<IDeckLinkConfiguration_v10_2>>(config);
+ else
+ return spl::make_shared<decklink_consumer_proxy<IDeckLinkConfiguration>>(config);
}
spl::shared_ptr<core::frame_consumer> create_preconfigured_consumer(
- const boost::property_tree::wptree& ptree, core::interaction_sink*)
+ const boost::property_tree::wptree& ptree, core::interaction_sink*, std::vector<spl::shared_ptr<core::video_channel>> channels)
{
configuration config;
config.embedded_audio = ptree.get(L"embedded-audio", config.embedded_audio);
config.base_buffer_depth = ptree.get(L"buffer-depth", config.base_buffer_depth);
- return spl::make_shared<decklink_consumer_proxy>(config);
+ bool old_configuration_api = get_driver_version() < get_new_configuration_api_version();
+
+ if (old_configuration_api)
+ return spl::make_shared<decklink_consumer_proxy<IDeckLinkConfiguration_v10_2>>(config);
+ else
+ return spl::make_shared<decklink_consumer_proxy<IDeckLinkConfiguration>>(config);
}
}}
-----------------------------------------------------------------------------
-Thanks for your inquiry. The minimum number of frames that you can preroll
-for scheduled playback is three frames for video and four frames for audio.
+Thanks for your inquiry. The minimum number of frames that you can preroll
+for scheduled playback is three frames for video and four frames for audio.
As you mentioned if you preroll less frames then playback will not start or
-playback will be very sporadic. From our experience with Media Express, we
-recommended that at least seven frames are prerolled for smooth playback.
+playback will be very sporadic. From our experience with Media Express, we
+recommended that at least seven frames are prerolled for smooth playback.
Regarding the bmdDeckLinkConfigLowLatencyVideoOutput flag:
There can be around 3 frames worth of latency on scheduled output.
When the bmdDeckLinkConfigLowLatencyVideoOutput flag is used this latency is
-reduced or removed for scheduled playback. If the DisplayVideoFrameSync()
-method is used, the bmdDeckLinkConfigLowLatencyVideoOutput setting will
-guarantee that the provided frame will be output as soon the previous
+reduced or removed for scheduled playback. If the DisplayVideoFrameSync()
+method is used, the bmdDeckLinkConfigLowLatencyVideoOutput setting will
+guarantee that the provided frame will be output as soon the previous
frame output has been completed.
################################################################################
*/
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-Thanks for your inquiry. You could try subclassing IDeckLinkMutableVideoFrame
-and providing a pointer to your video buffer when GetBytes() is called.
-This may help to keep copying to a minimum. Please ensure that the pixel
-format is in bmdFormat10BitYUV, otherwise the DeckLink API / driver will
+Thanks for your inquiry. You could try subclassing IDeckLinkMutableVideoFrame
+and providing a pointer to your video buffer when GetBytes() is called.
+This may help to keep copying to a minimum. Please ensure that the pixel
+format is in bmdFormat10BitYUV, otherwise the DeckLink API / driver will
have to colourspace convert which may result in additional copying.
################################################################################
*/
projects / casparcg / blobdiff