#include <movit/image_format.h>
#include <movit/init.h>
#include <movit/resource_pool.h>
+#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
alsa.reset(new ALSAOutput(OUTPUT_FREQUENCY, /*num_channels=*/2));
}
if (global_flags.output_card != -1) {
- set_output_card(global_flags.output_card);
+ set_output_card_internal(global_flags.output_card);
}
}
audio_mixer.trigger_state_changed_callback();
}
-void Mixer::set_output_card(int card_index)
+void Mixer::set_output_card_internal(int card_index)
{
- if (card_index == output_card_index) {
- return;
- }
+ // We don't really need to take card_mutex, since we're in the mixer
+ // thread and don't mess with any queues (which is the only thing that happens
+ // from other threads), but it's probably the safest in the long run.
unique_lock<mutex> lock(card_mutex);
if (output_card_index != -1) {
// Switch the old card from output to input.
old_card->is_fake_capture = false;
old_card->capture->start_bm_capture();
}
-
- CaptureCard *card = &cards[card_index];
- bmusb::CaptureInterface *capture = card->capture.get();
- lock.unlock();
- capture->stop_dequeue_thread();
- lock.lock();
- card->parked_capture = move(card->capture);
- bmusb::CaptureInterface *fake_capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
- configure_card(card_index, fake_capture, /*is_fake_capture=*/true, card->output.release());
- card->queue_length_policy.reset(card_index);
- card->capture->start_bm_capture();
- card->output->start_output(bmdModeHD720p5994, pts_int); // FIXME
+ if (card_index != -1) {
+ CaptureCard *card = &cards[card_index];
+ bmusb::CaptureInterface *capture = card->capture.get();
+ // TODO: DeckLinkCapture::stop_dequeue_thread can actually take
+ // several seconds to complete (blocking on DisableVideoInput);
+ // see if we can maybe do it asynchronously.
+ lock.unlock();
+ capture->stop_dequeue_thread();
+ lock.lock();
+ card->parked_capture = move(card->capture);
+ bmusb::CaptureInterface *fake_capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
+ configure_card(card_index, fake_capture, /*is_fake_capture=*/true, card->output.release());
+ card->queue_length_policy.reset(card_index);
+ card->capture->start_bm_capture();
+ card->output->start_output(bmdModeHD720p5994, pts_int); // FIXME
+ }
output_card_index = card_index;
}
void Mixer::thread_func()
{
+ pthread_setname_np(pthread_self(), "Mixer_OpenGL");
+
eglBindAPI(EGL_OPENGL_API);
QOpenGLContext *context = create_context(mixer_surface);
if (!make_current(context, mixer_surface)) {
int stats_dropped_frames = 0;
while (!should_quit) {
+ if (desired_output_card_index != output_card_index) {
+ set_output_card_internal(desired_output_card_index);
+ }
+
CaptureCard::NewFrame new_frames[MAX_VIDEO_CARDS];
bool has_new_frame[MAX_VIDEO_CARDS] = { false };
void Mixer::audio_thread_func()
{
+ pthread_setname_np(pthread_self(), "Mixer_Audio");
+
while (!should_quit) {
AudioTask task;