#include <assert.h>
#include <epoxy/gl.h>
+
#undef Success
-#include <movit/effect_chain.h>
-#include <movit/flat_input.h>
#include <stdbool.h>
#include <stdint.h>
-
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <thread>
#include <vector>
-#include "alsa_output.h"
#include "audio_mixer.h"
#include "bmusb/bmusb.h"
#include "defs.h"
#include "httpd.h"
#include "input_state.h"
+#include "libusb.h"
#include "pbo_frame_allocator.h"
#include "ref_counted_frame.h"
#include "ref_counted_gl_sync.h"
-#include "resampling_queue.h"
#include "theme.h"
#include "timebase.h"
-#include "stereocompressor.h"
#include "video_encoder.h"
class ALSAOutput;
+class ChromaSubsampler;
+class DeckLinkOutput;
class QSurface;
-class QuickSyncEncoder;
+class QSurfaceFormat;
+
namespace movit {
class Effect;
class EffectChain;
class ResourcePool;
} // namespace movit
-namespace movit {
-class YCbCrInput;
-}
-class QSurfaceFormat;
-
// For any card that's not the master (where we pick out the frames as they
// come, as fast as we can process), there's going to be a queue. The question
// is when we should drop frames from that queue (apart from the obvious
}
private:
- void configure_card(unsigned card_index, bmusb::CaptureInterface *capture, bool is_fake_capture);
+ void configure_card(unsigned card_index, bmusb::CaptureInterface *capture, bool is_fake_capture, DeckLinkOutput *output);
+ void set_output_card(int card_index); // -1 = no output, just stream.
void bm_frame(unsigned card_index, uint16_t timecode,
bmusb::FrameAllocator::Frame video_frame, size_t video_offset, bmusb::VideoFormat video_format,
bmusb::FrameAllocator::Frame audio_frame, size_t audio_offset, bmusb::AudioFormat audio_format);
void schedule_audio_resampling_tasks(unsigned dropped_frames, int num_samples_per_frame, int length_per_frame);
void render_one_frame(int64_t duration);
void audio_thread_func();
- void subsample_chroma(GLuint src_tex, GLuint dst_dst);
void release_display_frame(DisplayFrame *frame);
double pts() { return double(pts_int) / TIMEBASE; }
HTTPD httpd;
unsigned num_cards;
- QSurface *mixer_surface, *h264_encoder_surface;
+ QSurface *mixer_surface, *h264_encoder_surface, *decklink_output_surface;
std::unique_ptr<movit::ResourcePool> resource_pool;
std::unique_ptr<Theme> theme;
std::atomic<unsigned> audio_source_channel{0};
- std::atomic<unsigned> master_clock_channel{0};
+ std::atomic<int> master_clock_channel{0}; // Gets overridden by <output_card_index> if set.
+ std::atomic<int> output_card_index{-1}; // -1 for none.
std::unique_ptr<movit::EffectChain> display_chain;
- GLuint cbcr_program_num; // Owned by <resource_pool>.
- GLuint cbcr_vbo; // Holds position and texcoord data.
- GLuint cbcr_position_attribute_index, cbcr_texcoord_attribute_index;
+ std::unique_ptr<ChromaSubsampler> chroma_subsampler;
std::unique_ptr<VideoEncoder> video_encoder;
// Effects part of <display_chain>. Owned by <display_chain>.
int64_t pts_int = 0; // In TIMEBASE units.
- std::mutex bmusb_mutex;
+ // Accumulated errors in number of 1/TIMEBASE audio samples. If OUTPUT_FREQUENCY divided by
+ // frame rate is integer, will always stay zero.
+ unsigned fractional_samples = 0;
+
+ std::mutex card_mutex;
bool has_bmusb_thread = false;
struct CaptureCard {
bmusb::CaptureInterface *capture = nullptr;
bool is_fake_capture;
+ DeckLinkOutput *output = nullptr;
+
+ // If this card is used for output (ie., output_card_index points to it),
+ // it cannot simultaneously be uesd for capture, so <capture> gets replaced
+ // by a FakeCapture. However, since reconstructing the real capture object
+ // with all its state can be annoying, it is not being deleted, just stopped
+ // and moved here.
+ bmusb::CaptureInterface *parked_capture = nullptr;
+
std::unique_ptr<PBOFrameAllocator> frame_allocator;
// Stuff for the OpenGL context (for texture uploading).
unsigned field; // Which field (0 or 1) of the frame to use. Always 0 for progressive.
std::function<void()> upload_func; // Needs to be called to actually upload the texture to OpenGL.
unsigned dropped_frames = 0; // Number of dropped frames before this one.
+ std::chrono::steady_clock::time_point received_timestamp = std::chrono::steady_clock::time_point::min();
};
std::queue<NewFrame> new_frames;
bool should_quit = false;
QueueLengthPolicy queue_length_policy; // Refers to the "new_frames" queue.
- // Accumulated errors in number of 1/TIMEBASE samples. If OUTPUT_FREQUENCY divided by
- // frame rate is integer, will always stay zero.
- unsigned fractional_samples = 0;
-
int last_timecode = -1; // Unwrapped.
};
- CaptureCard cards[MAX_VIDEO_CARDS]; // protected by <bmusb_mutex>
+ CaptureCard cards[MAX_VIDEO_CARDS]; // Protected by <card_mutex>.
AudioMixer audio_mixer; // Same as global_audio_mixer (see audio_mixer.h).
- void get_one_frame_from_each_card(unsigned master_card_index, CaptureCard::NewFrame new_frames[MAX_VIDEO_CARDS], bool has_new_frame[MAX_VIDEO_CARDS], int num_samples[MAX_VIDEO_CARDS]);
+ bool input_card_is_master_clock(unsigned card_index, unsigned master_card_index) const;
+ struct OutputFrameInfo {
+ int dropped_frames; // Since last frame.
+ int num_samples; // Audio samples needed for this output frame.
+ int64_t frame_duration; // In TIMEBASE units.
+ };
+ OutputFrameInfo get_one_frame_from_each_card(unsigned master_card_index, bool master_card_is_output, CaptureCard::NewFrame new_frames[MAX_VIDEO_CARDS], bool has_new_frame[MAX_VIDEO_CARDS]);
InputState input_state;
projects / nageru / blobdiff