check_error();
resource_pool.reset(new ResourcePool);
+ theme.reset(new Theme("theme.lua", resource_pool.get()));
output_channel[OUTPUT_LIVE].parent = this;
output_channel[OUTPUT_PREVIEW].parent = this;
+ output_channel[OUTPUT_INPUT0].parent = this;
+ output_channel[OUTPUT_INPUT1].parent = this;
ImageFormat inout_format;
inout_format.color_space = COLORSPACE_sRGB;
inout_format.gamma_curve = GAMMA_sRGB;
- YCbCrFormat input_ycbcr_format;
- input_ycbcr_format.chroma_subsampling_x = 2;
- input_ycbcr_format.chroma_subsampling_y = 1;
- input_ycbcr_format.cb_x_position = 0.0;
- input_ycbcr_format.cr_x_position = 0.0;
- input_ycbcr_format.cb_y_position = 0.5;
- input_ycbcr_format.cr_y_position = 0.5;
- input_ycbcr_format.luma_coefficients = YCBCR_REC_601;
- input_ycbcr_format.full_range = false;
-
- YCbCrFormat output_ycbcr_format;
- output_ycbcr_format.chroma_subsampling_x = 1;
- output_ycbcr_format.chroma_subsampling_y = 1;
- output_ycbcr_format.luma_coefficients = YCBCR_REC_601;
- output_ycbcr_format.full_range = false;
-
- // Main chain.
- chain.reset(new EffectChain(WIDTH, HEIGHT, resource_pool.get()));
+ // Display chain; shows the live output produced by the main chain (its RGBA version).
+ display_chain.reset(new EffectChain(WIDTH, HEIGHT, resource_pool.get()));
check_error();
- input[0] = new YCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
- chain->add_input(input[0]);
- input[1] = new YCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
- chain->add_input(input[1]);
- resample_effect = chain->add_effect(new ResampleEffect(), input[0]);
- padding_effect = chain->add_effect(new IntegralPaddingEffect());
- float border_color[] = { 0.0f, 0.0f, 0.0f, 1.0f };
- CHECK(padding_effect->set_vec4("border_color", border_color));
-
- resample2_effect = chain->add_effect(new ResampleEffect(), input[1]);
- Effect *saturation_effect = chain->add_effect(new SaturationEffect());
- CHECK(saturation_effect->set_float("saturation", 0.3f));
- Effect *wb_effect = chain->add_effect(new WhiteBalanceEffect());
- CHECK(wb_effect->set_float("output_color_temperature", 3500.0));
- padding2_effect = chain->add_effect(new IntegralPaddingEffect());
-
- chain->add_effect(new OverlayEffect(), padding_effect, padding2_effect);
-
- chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
- chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR);
- chain->set_dither_bits(8);
- chain->set_output_origin(OUTPUT_ORIGIN_TOP_LEFT);
- chain->finalize();
-
- // Preview chain (always shows just first input for now).
- preview_chain.reset(new EffectChain(WIDTH, HEIGHT, resource_pool.get()));
- check_error();
- preview_input = new YCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
- preview_chain->add_input(preview_input);
- preview_chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
- preview_chain->set_dither_bits(0); // Don't bother.
- preview_chain->set_output_origin(OUTPUT_ORIGIN_TOP_LEFT);
- preview_chain->finalize();
+ display_input = new FlatInput(inout_format, FORMAT_RGB, GL_UNSIGNED_BYTE, WIDTH, HEIGHT); // FIXME: GL_UNSIGNED_BYTE is really wrong.
+ display_chain->add_input(display_input);
+ display_chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
+ display_chain->set_dither_bits(0); // Don't bother.
+ display_chain->finalize();
h264_encoder.reset(new H264Encoder(h264_encoder_surface, WIDTH, HEIGHT, "test.mp4"));
- printf("Configuring first card...\n");
- cards[0].usb = new BMUSBCapture(0x1edb, 0xbd3b); // 0xbd4f
- cards[0].usb->set_frame_callback(std::bind(&Mixer::bm_frame, this, 0, _1, _2, _3, _4, _5, _6, _7));
- cards[0].frame_allocator.reset(new PBOFrameAllocator(1280 * 750 * 2 + 44, 1280, 720));
- cards[0].usb->set_video_frame_allocator(cards[0].frame_allocator.get());
- cards[0].usb->configure_card();
- cards[0].surface = create_surface(format);
-#if NUM_CARDS == 2
- cards[1].surface = create_surface(format);
-#endif
-
- if (NUM_CARDS == 2) {
- printf("Configuring second card...\n");
- cards[1].usb = new BMUSBCapture(0x1edb, 0xbd4f);
- cards[1].usb->set_frame_callback(std::bind(&Mixer::bm_frame, this, 1, _1, _2, _3, _4, _5, _6, _7));
- cards[1].frame_allocator.reset(new PBOFrameAllocator(1280 * 750 * 2 + 44, 1280, 720));
- cards[1].usb->set_video_frame_allocator(cards[1].frame_allocator.get());
- cards[1].usb->configure_card();
+ for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
+ printf("Configuring card %d...\n", card_index);
+ CaptureCard *card = &cards[card_index];
+ card->usb = new BMUSBCapture(0x1edb, card_index == 0 ? 0xbd3b : 0xbd4f);
+ card->usb->set_frame_callback(std::bind(&Mixer::bm_frame, this, card_index, _1, _2, _3, _4, _5, _6, _7));
+ card->frame_allocator.reset(new PBOFrameAllocator(1280 * 750 * 2 + 44, 1280, 720));
+ card->usb->set_video_frame_allocator(card->frame_allocator.get());
+ card->surface = create_surface(format);
+ card->usb->set_dequeue_thread_callbacks(
+ [card]{
+ eglBindAPI(EGL_OPENGL_API);
+ card->context = create_context();
+ if (!make_current(card->context, card->surface)) {
+ printf("failed to create bmusb context\n");
+ exit(1);
+ }
+ printf("inited!\n");
+ },
+ [this]{
+ resource_pool->clean_context();
+ });
+ card->usb->configure_card();
}
BMUSBCapture::start_bm_thread();
for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
cards[card_index].usb->start_bm_capture();
- input[card_index]->set_pixel_data(0, nullptr, 0);
- input[card_index]->set_pixel_data(1, nullptr, 0);
}
//chain->enable_phase_timing(true);
{
resource_pool->release_glsl_program(cbcr_program_num);
BMUSBCapture::stop_bm_thread();
+
+ for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
+ cards[card_index].new_data_ready = false; // Unblock thread.
+ cards[card_index].new_data_ready_changed.notify_all();
+ cards[card_index].usb->stop_dequeue_thread();
+ }
}
void Mixer::bm_frame(int card_index, uint16_t timecode,
FrameAllocator::Frame audio_frame, size_t audio_offset, uint16_t audio_format)
{
CaptureCard *card = &cards[card_index];
- if (!card->thread_initialized) {
- printf("initializing context for bmusb thread %d\n", card_index);
- eglBindAPI(EGL_OPENGL_API);
- card->context = create_context();
- if (!make_current(card->context, card->surface)) {
- printf("failed to create bmusb context\n");
- exit(1);
- }
- card->thread_initialized = true;
- }
if (video_frame.len - video_offset != 1280 * 750 * 2) {
printf("dropping frame with wrong length (%ld)\n", video_frame.len - video_offset);
{
std::unique_lock<std::mutex> lock(bmusb_mutex);
card->new_data_ready = true;
- card->new_frame = video_frame;
+ card->new_frame = RefCountedFrame(video_frame);
card->new_data_ready_fence = fence;
card->new_data_ready_changed.notify_all();
}
- // Video frame will be released later.
+ // Video frame will be released when last user of card->new_frame goes out of scope.
card->usb->get_audio_frame_allocator()->release_frame(audio_frame);
}
-
-void Mixer::place_rectangle(Effect *resample_effect, Effect *padding_effect, float x0, float y0, float x1, float y1)
-{
- float srcx0 = 0.0f;
- float srcx1 = 1.0f;
- float srcy0 = 0.0f;
- float srcy1 = 1.0f;
-
- // Cull.
- if (x0 > 1280.0 || x1 < 0.0 || y0 > 720.0 || y1 < 0.0) {
- CHECK(resample_effect->set_int("width", 1));
- CHECK(resample_effect->set_int("height", 1));
- CHECK(resample_effect->set_float("zoom_x", 1280.0));
- CHECK(resample_effect->set_float("zoom_y", 720.0));
- CHECK(padding_effect->set_int("left", 2000));
- CHECK(padding_effect->set_int("top", 2000));
- return;
- }
-
- // Clip. (TODO: Clip on upper/left sides, too.)
- if (x1 > 1280.0) {
- srcx1 = (1280.0 - x0) / (x1 - x0);
- x1 = 1280.0;
- }
- if (y1 > 720.0) {
- srcy1 = (720.0 - y0) / (y1 - y0);
- y1 = 720.0;
- }
- float x_subpixel_offset = x0 - floor(x0);
- float y_subpixel_offset = y0 - floor(y0);
-
- // Resampling must be to an integral number of pixels. Round up,
- // and then add an extra pixel so we have some leeway for the border.
- int width = int(ceil(x1 - x0)) + 1;
- int height = int(ceil(y1 - y0)) + 1;
- CHECK(resample_effect->set_int("width", width));
- CHECK(resample_effect->set_int("height", height));
-
- // Correct the discrepancy with zoom. (This will leave a small
- // excess edge of pixels and subpixels, which we'll correct for soon.)
- float zoom_x = (x1 - x0) / (width * (srcx1 - srcx0));
- float zoom_y = (y1 - y0) / (height * (srcy1 - srcy0));
- CHECK(resample_effect->set_float("zoom_x", zoom_x));
- CHECK(resample_effect->set_float("zoom_y", zoom_y));
- CHECK(resample_effect->set_float("zoom_center_x", 0.0f));
- CHECK(resample_effect->set_float("zoom_center_y", 0.0f));
-
- // Padding must also be to a whole-pixel offset.
- CHECK(padding_effect->set_int("left", floor(x0)));
- CHECK(padding_effect->set_int("top", floor(y0)));
-
- // Correct _that_ discrepancy by subpixel offset in the resampling.
- CHECK(resample_effect->set_float("left", -x_subpixel_offset / zoom_x));
- CHECK(resample_effect->set_float("top", -y_subpixel_offset / zoom_y));
-
- // Finally, adjust the border so it is exactly where we want it.
- CHECK(padding_effect->set_float("border_offset_left", x_subpixel_offset));
- CHECK(padding_effect->set_float("border_offset_right", x1 - (floor(x0) + width)));
- CHECK(padding_effect->set_float("border_offset_top", y_subpixel_offset));
- CHECK(padding_effect->set_float("border_offset_bottom", y1 - (floor(y0) + height)));
-}
-
void Mixer::thread_func()
{
eglBindAPI(EGL_OPENGL_API);
while (!should_quit) {
++frame;
- //int width0 = lrintf(848 * (1.0 + 0.2 * sin(frame * 0.02)));
- int width0 = 848;
- int height0 = lrintf(width0 * 9.0 / 16.0);
-
- //float top0 = 96 + 48 * sin(frame * 0.005);
- //float left0 = 96 + 48 * cos(frame * 0.006);
- float top0 = 48;
- float left0 = 16;
- float bottom0 = top0 + height0;
- float right0 = left0 + width0;
-
- int width1 = 384;
- int height1 = 216;
-
- float bottom1 = 720 - 48;
- float right1 = 1280 - 16;
- float top1 = bottom1 - height1;
- float left1 = right1 - width1;
-
- if (current_source == SOURCE_INPUT1) {
- top0 = 0.0;
- bottom0 = HEIGHT;
- left0 = 0.0;
- right0 = WIDTH;
-
- top1 = HEIGHT + 10;
- bottom1 = HEIGHT + 20;
- left1 = WIDTH + 10;
- right1 = WIDTH + 20;
- } else if (current_source == SOURCE_INPUT2) {
- top1 = 0.0;
- bottom1 = HEIGHT;
- left1 = 0.0;
- right1 = WIDTH;
-
- top0 = HEIGHT + 10;
- bottom0 = HEIGHT + 20;
- left0 = WIDTH + 10;
- right0 = WIDTH + 20;
- } else {
- float t = 0.5 + 0.5 * cos(frame * 0.006);
- float scale0 = 1.0 + t * (1280.0 / 848.0 - 1.0);
- float tx0 = 0.0 + t * (-16.0 * scale0);
- float ty0 = 0.0 + t * (-48.0 * scale0);
-
- top0 = top0 * scale0 + ty0;
- bottom0 = bottom0 * scale0 + ty0;
- left0 = left0 * scale0 + tx0;
- right0 = right0 * scale0 + tx0;
-
- top1 = top1 * scale0 + ty0;
- bottom1 = bottom1 * scale0 + ty0;
- left1 = left1 * scale0 + tx0;
- right1 = right1 * scale0 + tx0;
- }
-
- place_rectangle(resample_effect, padding_effect, left0, top0, right0, bottom0);
- place_rectangle(resample2_effect, padding2_effect, left1, top1, right1, bottom1);
-
CaptureCard card_copy[NUM_CARDS];
{
}
}
- vector<FrameAllocator::Frame> input_frames_to_release;
-
for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
CaptureCard *card = &card_copy[card_index];
if (!card->new_data_ready)
continue;
- // Now we're done with the previous frame, so we can definitely
- // release it when this is done rendering. (Actually, we could do
- // it one frame earlier, but before we have a new one, there's no
- // knowing when the current one is released.)
- if (bmusb_current_rendering_frame[card_index].owner != nullptr) {
- input_frames_to_release.push_back(bmusb_current_rendering_frame[card_index]);
- }
+ assert(card->new_frame != nullptr);
bmusb_current_rendering_frame[card_index] = card->new_frame;
check_error();
check_error();
glDeleteSync(card->new_data_ready_fence);
check_error();
- const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)card->new_frame.userdata;
- input[card_index]->set_texture_num(0, userdata->tex_y);
- input[card_index]->set_texture_num(1, userdata->tex_cbcr);
-
- if (NUM_CARDS == 1) {
- // Set to the other one, too.
- input[1]->set_texture_num(0, userdata->tex_y);
- input[1]->set_texture_num(1, userdata->tex_cbcr);
- }
-
- if (card_index == 0) {
- preview_input->set_texture_num(0, userdata->tex_y);
- preview_input->set_texture_num(1, userdata->tex_cbcr);
- }
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)card->new_frame->userdata;
+ theme->set_input_textures(card_index, userdata->tex_y, userdata->tex_cbcr);
}
+ // Get the main chain from the theme, and set its state immediately.
+ pair<EffectChain *, function<void()>> theme_main_chain = theme->get_chain(0, frame / 60.0f, WIDTH, HEIGHT);
+ EffectChain *chain = theme_main_chain.first;
+ theme_main_chain.second();
+
GLuint y_tex, cbcr_tex;
bool got_frame = h264_encoder->begin_frame(&y_tex, &cbcr_tex);
assert(got_frame);
// Render main chain.
GLuint cbcr_full_tex = resource_pool->create_2d_texture(GL_RG8, WIDTH, HEIGHT);
- GLuint rgba_tex = resource_pool->create_2d_texture(GL_RGBA8, WIDTH, HEIGHT);
+ GLuint rgba_tex = resource_pool->create_2d_texture(GL_RGB565, WIDTH, HEIGHT); // Saves texture bandwidth, although dithering gets messed up.
GLuint fbo = resource_pool->create_fbo(y_tex, cbcr_full_tex, rgba_tex);
chain->render_to_fbo(fbo, WIDTH, HEIGHT);
resource_pool->release_fbo(fbo);
subsample_chroma(cbcr_full_tex, cbcr_tex);
resource_pool->release_2d_texture(cbcr_full_tex);
- // Render preview chain.
- GLuint preview_rgba_tex = resource_pool->create_2d_texture(GL_RGBA8, output_channel[OUTPUT_PREVIEW].width, output_channel[OUTPUT_PREVIEW].height);
- fbo = resource_pool->create_fbo(preview_rgba_tex);
- preview_chain->render_to_fbo(fbo, output_channel[OUTPUT_PREVIEW].width, output_channel[OUTPUT_PREVIEW].height);
- resource_pool->release_fbo(fbo);
+ // Set the right state for rgba_tex.
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ glBindTexture(GL_TEXTURE_2D, rgba_tex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
RefCountedGLsync fence(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
check_error();
- h264_encoder->end_frame(fence, input_frames_to_release);
- output_channel[OUTPUT_LIVE].output_frame(rgba_tex, fence);
- output_channel[OUTPUT_PREVIEW].output_frame(preview_rgba_tex, fence);
+ // Make sure the H.264 gets a reference to all the
+ // input frames needed, so that they are not released back
+ // until the rendering is done.
+ vector<RefCountedFrame> input_frames;
+ for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
+ input_frames.push_back(bmusb_current_rendering_frame[card_index]);
+ }
+ h264_encoder->end_frame(fence, input_frames);
+
+ // The live frame just shows the RGBA texture we just rendered.
+ // It owns rgba_tex now.
+ DisplayFrame live_frame;
+ live_frame.chain = display_chain.get();
+ live_frame.setup_chain = [this, rgba_tex]{
+ display_input->set_texture_num(rgba_tex);
+ };
+ live_frame.ready_fence = fence;
+ live_frame.input_frames = {};
+ live_frame.temp_textures = { rgba_tex };
+ output_channel[OUTPUT_LIVE].output_frame(live_frame);
+
+ // Set up preview and any additional channels.
+ for (unsigned i = 1; i < theme->get_num_channels() + 2; ++i) {
+ DisplayFrame display_frame;
+ pair<EffectChain *, function<void()>> chain = theme->get_chain(i, frame / 60.0f, WIDTH, HEIGHT); // FIXME: dimensions
+ display_frame.chain = chain.first;
+ display_frame.setup_chain = chain.second;
+ display_frame.ready_fence = fence;
+ display_frame.input_frames = { bmusb_current_rendering_frame[0], bmusb_current_rendering_frame[1] }; // FIXME: possible to do better?
+ display_frame.temp_textures = {};
+ output_channel[i].output_frame(display_frame);
+ }
clock_gettime(CLOCK_MONOTONIC, &now);
double elapsed = now.tv_sec - start.tv_sec +
}
check_error();
}
+
+ resource_pool->clean_context();
}
void Mixer::subsample_chroma(GLuint src_tex, GLuint dst_tex)
void Mixer::release_display_frame(DisplayFrame *frame)
{
- resource_pool->release_2d_texture(frame->texnum);
- frame->texnum = 0;
+ for (GLuint texnum : frame->temp_textures) {
+ resource_pool->release_2d_texture(texnum);
+ }
+ frame->temp_textures.clear();
frame->ready_fence.reset();
+ frame->input_frames.clear();
}
void Mixer::start()
mixer_thread.join();
}
-void Mixer::cut(Source source)
+void Mixer::transition_clicked(int transition_num)
{
- current_source = source;
+ theme->transition_clicked(transition_num, frame / 60.0);
}
-void Mixer::OutputChannel::output_frame(GLuint tex, RefCountedGLsync fence)
+void Mixer::channel_clicked(int preview_num)
+{
+ theme->channel_clicked(preview_num);
+}
+
+Mixer::OutputChannel::~OutputChannel()
+{
+ if (has_current_frame) {
+ parent->release_display_frame(¤t_frame);
+ }
+ if (has_ready_frame) {
+ parent->release_display_frame(&ready_frame);
+ }
+}
+
+void Mixer::OutputChannel::output_frame(DisplayFrame frame)
{
// Store this frame for display. Remove the ready frame if any
// (it was seemingly never used).
if (has_ready_frame) {
parent->release_display_frame(&ready_frame);
}
- ready_frame.texnum = tex;
- ready_frame.ready_fence = fence;
+ ready_frame = frame;
has_ready_frame = true;
}
assert(!has_current_frame);
current_frame = ready_frame;
ready_frame.ready_fence.reset(); // Drop the refcount.
+ ready_frame.input_frames.clear(); // Drop the refcounts.
has_current_frame = true;
has_ready_frame = false;
}
new_frame_ready_callback = callback;
has_new_frame_ready_callback = true;
}
-
-void Mixer::OutputChannel::set_size(int width, int height)
-{
- this->width = width;
- this->height = height;
-}