Mixer *global_mixer = nullptr;
-Mixer::Mixer(QSurface *surface1, QSurface *surface2, QSurface *surface3, QSurface *surface4)
- : surface1(surface1), surface2(surface2), surface3(surface3), surface4(surface4)
+Mixer::Mixer(const QSurfaceFormat &format)
+ : mixer_surface(create_surface(format)),
+ h264_encoder_surface(create_surface(format))
{
CHECK(init_movit(MOVIT_SHADER_DIR, MOVIT_DEBUG_OFF));
check_error();
- chain.reset(new EffectChain(WIDTH, HEIGHT));
- check_error();
+ resource_pool.reset(new ResourcePool);
+ output_channel[OUTPUT_LIVE].parent = this;
+ output_channel[OUTPUT_PREVIEW].parent = this;
ImageFormat inout_format;
inout_format.color_space = COLORSPACE_sRGB;
inout_format.gamma_curve = GAMMA_sRGB;
- YCbCrFormat ycbcr_format;
- ycbcr_format.chroma_subsampling_x = 2;
- ycbcr_format.chroma_subsampling_y = 1;
- ycbcr_format.cb_x_position = 0.0;
- ycbcr_format.cr_x_position = 0.0;
- ycbcr_format.cb_y_position = 0.5;
- ycbcr_format.cr_y_position = 0.5;
- ycbcr_format.luma_coefficients = YCBCR_REC_601;
- ycbcr_format.full_range = false;
-
- input[0] = new YCbCrInput(inout_format, ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
+ 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()));
+ 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, ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
+ 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());
chain->add_effect(new OverlayEffect(), padding_effect, padding2_effect);
- ycbcr_format.chroma_subsampling_x = 1;
-
chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
- chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR);
+ 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();
- h264_encoder.reset(new H264Encoder(surface2, WIDTH, HEIGHT, "test.mp4"));
+ // 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();
+
+ 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));
+ 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));
+ 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();
}
//chain->enable_phase_timing(true);
// Set up stuff for NV12 conversion.
- resource_pool = chain->get_resource_pool();
// Cb/Cr shader.
string cbcr_vert_shader = read_file("vs-cbcr.130.vert");
std::unique_lock<std::mutex> lock(bmusb_mutex);
card->new_data_ready_changed.wait(lock, [card]{ return !card->new_data_ready; });
}
- GLuint pbo = (GLint)(intptr_t)video_frame.userdata;
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)video_frame.userdata;
+ GLuint pbo = userdata->pbo;
check_error();
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
check_error();
check_error();
//glMemoryBarrier(GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
//check_error();
+
+ // Upload the textures.
+ glBindTexture(GL_TEXTURE_2D, userdata->tex_y);
+ check_error();
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1280, 720, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET((1280 * 750 * 2 + 44) / 2 + 1280 * 25 + 22));
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, userdata->tex_cbcr);
+ check_error();
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1280/2, 720, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(1280 * 25 + 22));
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, 0);
+ check_error();
GLsync fence = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
check_error();
assert(fence != nullptr);
{
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::thread_func()
{
- cards[0].surface = surface3;
-#if NUM_CARDS == 2
- cards[1].surface = surface4;
-#endif
-
eglBindAPI(EGL_OPENGL_API);
QOpenGLContext *context = create_context();
- if (!make_current(context, surface1)) {
+ if (!make_current(context, mixer_surface)) {
printf("oops\n");
exit(1);
}
struct timespec start, now;
clock_gettime(CLOCK_MONOTONIC, &start);
- GLuint vao;
- glGenVertexArrays(1, &vao);
- check_error();
-
while (!should_quit) {
++frame;
}
}
- 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]);
- }
bmusb_current_rendering_frame[card_index] = card->new_frame;
check_error();
check_error();
glDeleteSync(card->new_data_ready_fence);
check_error();
- GLint input_tex_pbo = (GLint)(intptr_t)card->new_frame.userdata;
- input[card_index]->set_pixel_data(0, (unsigned char *)BUFFER_OFFSET((1280 * 750 * 2 + 44) / 2 + 1280 * 25 + 22), input_tex_pbo);
- input[card_index]->set_pixel_data(1, (unsigned char *)BUFFER_OFFSET(1280 * 25 + 22), input_tex_pbo);
+ 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_pixel_data(0, (unsigned char *)BUFFER_OFFSET((1280 * 750 * 2 + 44) / 2 + 1280 * 25 + 22), input_tex_pbo);
- input[1]->set_pixel_data(1, (unsigned char *)BUFFER_OFFSET(1280 * 25 + 22), input_tex_pbo);
+ 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);
}
}
bool got_frame = h264_encoder->begin_frame(&y_tex, &cbcr_tex);
assert(got_frame);
- GLuint chroma_tex = resource_pool->create_2d_texture(GL_RG8, WIDTH, HEIGHT);
-
- // Render chain.
- GLuint rgba_tex = resource_pool->create_2d_texture(GL_RGBA8, WIDTH, HEIGHT);
- GLuint ycbcr_fbo = resource_pool->create_fbo(y_tex, chroma_tex, rgba_tex);
- chain->render_to_fbo(ycbcr_fbo, WIDTH, HEIGHT);
- resource_pool->release_fbo(ycbcr_fbo);
-
- // Set up for extraction.
- float vertices[] = {
- 0.0f, 2.0f,
- 0.0f, 0.0f,
- 2.0f, 0.0f
- };
-
- glBindVertexArray(vao);
- check_error();
-
- // Extract Cb/Cr.
- GLuint cbcr_fbo = resource_pool->create_fbo(cbcr_tex);
- glBindFramebuffer(GL_FRAMEBUFFER, cbcr_fbo);
- glViewport(0, 0, WIDTH/2, HEIGHT/2);
- check_error();
-
- glUseProgram(cbcr_program_num);
- check_error();
-
- glActiveTexture(GL_TEXTURE0);
- check_error();
- glBindTexture(GL_TEXTURE_2D, chroma_tex);
- check_error();
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- check_error();
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- check_error();
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- check_error();
+ // 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_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);
- float chroma_offset_0[] = { -0.5f / WIDTH, 0.0f };
- set_uniform_vec2(cbcr_program_num, "foo", "chroma_offset_0", chroma_offset_0);
+ subsample_chroma(cbcr_full_tex, cbcr_tex);
+ resource_pool->release_2d_texture(cbcr_full_tex);
- GLuint position_vbo = fill_vertex_attribute(cbcr_program_num, "position", 2, GL_FLOAT, sizeof(vertices), vertices);
- GLuint texcoord_vbo = fill_vertex_attribute(cbcr_program_num, "texcoord", 2, GL_FLOAT, sizeof(vertices), vertices); // Same as vertices.
-
- glDrawArrays(GL_TRIANGLES, 0, 3);
- check_error();
+ // Render preview chain.
+ GLuint preview_rgba_tex = resource_pool->create_2d_texture(GL_RGB565, output_channel[OUTPUT_PREVIEW].width, output_channel[OUTPUT_PREVIEW].height); // Saves texture bandwidth, although dithering gets messed up.
+ 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);
RefCountedGLsync fence(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
check_error();
- cleanup_vertex_attribute(cbcr_program_num, "position", position_vbo);
- cleanup_vertex_attribute(cbcr_program_num, "texcoord", texcoord_vbo);
-
- glUseProgram(0);
- check_error();
-
- resource_pool->release_fbo(cbcr_fbo);
- resource_pool->release_2d_texture(chroma_tex);
-
- h264_encoder->end_frame(fence, input_frames_to_release);
-
- // Store this frame for display. Remove the ready frame if any
- // (it was seemingly never used).
- {
- std::unique_lock<std::mutex> lock(display_frame_mutex);
- if (has_ready_display_frame) {
- resource_pool->release_2d_texture(ready_display_frame.texnum);
- ready_display_frame.ready_fence.reset();
- }
- ready_display_frame.texnum = rgba_tex;
- ready_display_frame.ready_fence = fence;
- has_ready_display_frame = true;
+ // 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);
- if (has_new_frame_ready_callback) {
- new_frame_ready_callback();
- }
+ output_channel[OUTPUT_LIVE].output_frame(rgba_tex, fence);
+ output_channel[OUTPUT_PREVIEW].output_frame(preview_rgba_tex, fence);
clock_gettime(CLOCK_MONOTONIC, &now);
double elapsed = now.tv_sec - start.tv_sec +
}
check_error();
}
- glDeleteVertexArrays(1, &vao);
}
-bool Mixer::get_display_frame(DisplayFrame *frame)
+void Mixer::subsample_chroma(GLuint src_tex, GLuint dst_tex)
{
- std::unique_lock<std::mutex> lock(display_frame_mutex);
- if (!has_current_display_frame && !has_ready_display_frame) {
- return false;
- }
+ GLuint vao;
+ glGenVertexArrays(1, &vao);
+ check_error();
- if (has_current_display_frame && has_ready_display_frame) {
- // We have a new ready frame. Toss the current one.
- resource_pool->release_2d_texture(current_display_frame.texnum);
- current_display_frame.ready_fence.reset();
- has_current_display_frame = false;
- }
- if (has_ready_display_frame) {
- assert(!has_current_display_frame);
- current_display_frame = ready_display_frame;
- ready_display_frame.ready_fence.reset(); // Drop the refcount.
- has_current_display_frame = true;
- has_ready_display_frame = false;
- }
+ float vertices[] = {
+ 0.0f, 2.0f,
+ 0.0f, 0.0f,
+ 2.0f, 0.0f
+ };
- *frame = current_display_frame;
- return true;
+ glBindVertexArray(vao);
+ check_error();
+
+ // Extract Cb/Cr.
+ GLuint fbo = resource_pool->create_fbo(dst_tex);
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ glViewport(0, 0, WIDTH/2, HEIGHT/2);
+ check_error();
+
+ glUseProgram(cbcr_program_num);
+ check_error();
+
+ glActiveTexture(GL_TEXTURE0);
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, src_tex);
+ check_error();
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ check_error();
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ check_error();
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ check_error();
+
+ float chroma_offset_0[] = { -0.5f / WIDTH, 0.0f };
+ set_uniform_vec2(cbcr_program_num, "foo", "chroma_offset_0", chroma_offset_0);
+
+ GLuint position_vbo = fill_vertex_attribute(cbcr_program_num, "position", 2, GL_FLOAT, sizeof(vertices), vertices);
+ GLuint texcoord_vbo = fill_vertex_attribute(cbcr_program_num, "texcoord", 2, GL_FLOAT, sizeof(vertices), vertices); // Same as vertices.
+
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+ check_error();
+
+ cleanup_vertex_attribute(cbcr_program_num, "position", position_vbo);
+ cleanup_vertex_attribute(cbcr_program_num, "texcoord", texcoord_vbo);
+
+ glUseProgram(0);
+ check_error();
+
+ resource_pool->release_fbo(fbo);
+ glDeleteVertexArrays(1, &vao);
}
-void Mixer::set_frame_ready_fallback(new_frame_ready_callback_t callback)
+void Mixer::release_display_frame(DisplayFrame *frame)
{
- new_frame_ready_callback = callback;
- has_new_frame_ready_callback = true;
+ resource_pool->release_2d_texture(frame->texnum);
+ frame->texnum = 0;
+ frame->ready_fence.reset();
}
void Mixer::start()
{
current_source = source;
}
+
+void Mixer::OutputChannel::output_frame(GLuint tex, RefCountedGLsync fence)
+{
+ // Store this frame for display. Remove the ready frame if any
+ // (it was seemingly never used).
+ {
+ std::unique_lock<std::mutex> lock(frame_mutex);
+ if (has_ready_frame) {
+ parent->release_display_frame(&ready_frame);
+ }
+ ready_frame.texnum = tex;
+ ready_frame.ready_fence = fence;
+ has_ready_frame = true;
+ }
+
+ if (has_new_frame_ready_callback) {
+ new_frame_ready_callback();
+ }
+}
+
+bool Mixer::OutputChannel::get_display_frame(DisplayFrame *frame)
+{
+ std::unique_lock<std::mutex> lock(frame_mutex);
+ if (!has_current_frame && !has_ready_frame) {
+ return false;
+ }
+
+ if (has_current_frame && has_ready_frame) {
+ // We have a new ready frame. Toss the current one.
+ parent->release_display_frame(¤t_frame);
+ has_current_frame = false;
+ }
+ if (has_ready_frame) {
+ assert(!has_current_frame);
+ current_frame = ready_frame;
+ ready_frame.ready_fence.reset(); // Drop the refcount.
+ has_current_frame = true;
+ has_ready_frame = false;
+ }
+
+ *frame = current_frame;
+ return true;
+}
+
+void Mixer::OutputChannel::set_frame_ready_callback(Mixer::new_frame_ready_callback_t callback)
+{
+ 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;
+}
projects / nageru / blobdiff