-#define GL_GLEXT_PROTOTYPES 1
-#define NO_SDL_GLEXT 1
-#define NUM_CARDS 2
-
#define WIDTH 1280
#define HEIGHT 720
-#include <epoxy/gl.h>
-#include <epoxy/egl.h>
-
#undef Success
-#include <assert.h>
-#include <features.h>
-#include <math.h>
-#include <png.h>
-#include <pngconf.h>
-#include <setjmp.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <time.h>
-#include <mutex>
-#include <queue>
-#include <condition_variable>
+#include "mixer.h"
-#include <diffusion_effect.h>
+#include <assert.h>
#include <effect.h>
#include <effect_chain.h>
-#include <flat_input.h>
+#include <effect_util.h>
+#include <epoxy/egl.h>
+#include <features.h>
#include <image_format.h>
#include <init.h>
-#include <lift_gamma_gain_effect.h>
-#include <saturation_effect.h>
-#include <util.h>
-#include <ycbcr_input.h>
-#include <vignette_effect.h>
-#include <resample_effect.h>
-#include <resize_effect.h>
#include <overlay_effect.h>
#include <padding_effect.h>
+#include <resample_effect.h>
+#include <resource_pool.h>
+#include <saturation_effect.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
+#include <util.h>
#include <white_balance_effect.h>
#include <ycbcr.h>
-#include <resource_pool.h>
-#include <effect_util.h>
-
-#include <EGL/egl.h>
+#include <ycbcr_input.h>
+#include <cmath>
+#include <condition_variable>
+#include <cstddef>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <thread>
+#include <vector>
-#include "h264encode.h"
-#include "context.h"
#include "bmusb.h"
+#include "context.h"
+#include "h264encode.h"
#include "pbo_frame_allocator.h"
-#include "mixer.h"
#include "ref_counted_gl_sync.h"
+class QOpenGLContext;
+
using namespace movit;
using namespace std;
using namespace std::placeholders;
-static float t = 0.0f;
+Mixer *global_mixer = nullptr;
+
+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();
+
+ 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 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, 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();
+
+ 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
-ResourcePool *resource_pool;
+ 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();
+ }
-std::mutex display_frame_mutex;
-DisplayFrame current_display_frame, ready_display_frame; // protected by <frame_mutex>
-bool has_current_display_frame = false, has_ready_display_frame = false; // protected by <frame_mutex>
+ BMUSBCapture::start_bm_thread();
-std::mutex bmusb_mutex;
-struct CaptureCard {
- BMUSBCapture *usb;
+ 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);
+ }
- // Threading stuff
- bool thread_initialized;
- QSurface *surface;
- QOpenGLContext *context;
+ //chain->enable_phase_timing(true);
- bool new_data_ready; // Whether new_frame contains anything.
- PBOFrameAllocator::Frame new_frame;
- GLsync new_data_ready_fence; // Whether new_frame is ready for rendering.
- std::condition_variable new_data_ready_changed; // Set whenever new_data_ready is changed.
-};
-CaptureCard cards[NUM_CARDS]; // protected by <bmusb_mutex>
+ // Set up stuff for NV12 conversion.
-new_frame_ready_callback_t new_frame_ready_callback;
-bool has_new_frame_ready_callback = false;
+ // Cb/Cr shader.
+ string cbcr_vert_shader = read_file("vs-cbcr.130.vert");
+ string cbcr_frag_shader =
+ "#version 130 \n"
+ "in vec2 tc0; \n"
+ "uniform sampler2D cbcr_tex; \n"
+ "void main() { \n"
+ " gl_FragColor = texture2D(cbcr_tex, tc0); \n"
+ "} \n";
+ cbcr_program_num = resource_pool->compile_glsl_program(cbcr_vert_shader, cbcr_frag_shader);
+}
-void bm_frame(int card_index, uint16_t timecode,
- FrameAllocator::Frame video_frame, size_t video_offset, uint16_t video_format,
- FrameAllocator::Frame audio_frame, size_t audio_offset, uint16_t audio_format)
+Mixer::~Mixer()
+{
+ resource_pool->release_glsl_program(cbcr_program_num);
+ BMUSBCapture::stop_bm_thread();
+}
+
+void Mixer::bm_frame(int card_index, uint16_t timecode,
+ FrameAllocator::Frame video_frame, size_t video_offset, uint16_t video_format,
+ FrameAllocator::Frame audio_frame, size_t audio_offset, uint16_t audio_format)
{
CaptureCard *card = &cards[card_index];
if (!card->thread_initialized) {
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 place_rectangle(Effect *resample_effect, Effect *padding_effect, float x0, float y0, float x1, float y1)
+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;
CHECK(padding_effect->set_float("border_offset_bottom", y1 - (floor(y0) + height)));
}
-static bool quit = false;
-
-void mixer_thread_func(QSurface *surface, QSurface *surface2, QSurface *surface3, QSurface *surface4)
+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, surface)) {
+ if (!make_current(context, mixer_surface)) {
printf("oops\n");
exit(1);
}
- CHECK(init_movit(MOVIT_SHADER_DIR, MOVIT_DEBUG_OFF));
- check_error();
-
- EffectChain chain(WIDTH, HEIGHT);
- check_error();
-
- 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;
-
- YCbCrInput *input[NUM_CARDS];
-
- input[0] = new YCbCrInput(inout_format, 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);
- chain.add_input(input[1]);
- Effect *resample_effect = chain.add_effect(new ResampleEffect(), input[0]);
- Effect *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));
-
- Effect *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));
- Effect *padding2_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.set_dither_bits(8);
- chain.set_output_origin(OUTPUT_ORIGIN_TOP_LEFT);
- chain.finalize();
-
- H264Encoder h264_encoder(surface2, WIDTH, HEIGHT, "test.mp4");
-
- printf("Configuring first card...\n");
- cards[0].usb = new BMUSBCapture(0x1edb, 0xbd3b); // 0xbd4f
- //cards[0].usb = new BMUSBCapture(0x1edb, 0xbd4f);
- cards[0].usb->set_frame_callback(std::bind(bm_frame, 0, _1, _2, _3, _4, _5, _6, _7));
- std::unique_ptr<PBOFrameAllocator> pbo_allocator1(new PBOFrameAllocator(1280 * 750 * 2 + 44));
- cards[0].usb->set_video_frame_allocator(pbo_allocator1.get());
- cards[0].usb->configure_card();
-
- std::unique_ptr<PBOFrameAllocator> pbo_allocator2(new PBOFrameAllocator(1280 * 750 * 2 + 44));
- if (NUM_CARDS == 2) {
- printf("Configuring second card...\n");
- cards[1].usb = new BMUSBCapture(0x1edb, 0xbd4f);
- cards[1].usb->set_frame_callback(std::bind(bm_frame, 1, _1, _2, _3, _4, _5, _6, _7));
- cards[1].usb->set_video_frame_allocator(pbo_allocator2.get());
- cards[1].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();
- }
-
- int frame = 0;
-#if _POSIX_C_SOURCE >= 199309L
struct timespec start, now;
clock_gettime(CLOCK_MONOTONIC, &start);
-#else
- struct timeval start, now;
- gettimeofday(&start, NULL);
-#endif
-
- PBOFrameAllocator::Frame bmusb_current_rendering_frame[NUM_CARDS];
- for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
- bmusb_current_rendering_frame[card_index] =
- cards[card_index].usb->get_video_frame_allocator()->alloc_frame();
- GLint input_tex_pbo = (GLint)(intptr_t)bmusb_current_rendering_frame[card_index].userdata;
- input[card_index]->set_pixel_data(0, nullptr, input_tex_pbo);
- input[card_index]->set_pixel_data(1, nullptr, input_tex_pbo);
- check_error();
- }
-
- //chain.enable_phase_timing(true);
-
- // Set up stuff for NV12 conversion.
- resource_pool = chain.get_resource_pool();
- GLuint chroma_tex = resource_pool->create_2d_texture(GL_RG8, WIDTH, HEIGHT);
-
- // Cb/Cr shader.
- string cbcr_vert_shader = read_file("vs-cbcr.130.vert");
- string cbcr_frag_shader =
- "#version 130 \n"
- "in vec2 tc0; \n"
- "uniform sampler2D cbcr_tex; \n"
- "void main() { \n"
- " gl_FragColor = texture2D(cbcr_tex, tc0); \n"
- "} \n";
- GLuint cbcr_program_num = resource_pool->compile_glsl_program(cbcr_vert_shader, cbcr_frag_shader);
- GLuint vao;
- glGenVertexArrays(1, &vao);
- check_error();
-
- while (!quit) {
+ while (!should_quit) {
++frame;
//int width0 = lrintf(848 * (1.0 + 0.2 * sin(frame * 0.02)));
float right1 = 1280 - 16;
float top1 = bottom1 - height1;
float left1 = right1 - width1;
-
- float t = 0.5 + 0.5 * cos(frame * 0.006);
- //float t = 0.0;
- 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;
+
+ 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);
// The first card is the master timer, so wait for it to have a new frame.
// TODO: Make configurable, and with a timeout.
- cards[0].new_data_ready_changed.wait(lock, []{ return cards[0].new_data_ready; });
+ cards[0].new_data_ready_changed.wait(lock, [this]{ return cards[0].new_data_ready; });
for (int card_index = 0; card_index < NUM_CARDS; ++card_index) {
CaptureCard *card = &cards[card_index];
}
}
- 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.)
- input_frames_to_release.push_back(bmusb_current_rendering_frame[card_index]);
bmusb_current_rendering_frame[card_index] = card->new_frame;
+ check_error();
// The new texture might still be uploaded,
// tell the GPU to wait until it's there.
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);
}
}
GLuint y_tex, cbcr_tex;
- bool got_frame = h264_encoder.begin_frame(&y_tex, &cbcr_tex);
+ bool got_frame = h264_encoder->begin_frame(&y_tex, &cbcr_tex);
assert(got_frame);
- // 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();
+ // 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);
- // 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();
+ subsample_chroma(cbcr_full_tex, cbcr_tex);
+ resource_pool->release_2d_texture(cbcr_full_tex);
- 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();
-
- 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();
+ // 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);
-
- 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);
-#if 1
-#if _POSIX_C_SOURCE >= 199309L
clock_gettime(CLOCK_MONOTONIC, &now);
double elapsed = now.tv_sec - start.tv_sec +
1e-9 * (now.tv_nsec - start.tv_nsec);
-#else
- gettimeofday(&now, NULL);
- double elapsed = now.tv_sec - start.tv_sec +
- 1e-6 * (now.tv_usec - start.tv_usec);
-#endif
if (frame % 100 == 0) {
printf("%d frames in %.3f seconds = %.1f fps (%.1f ms/frame)\n",
frame, elapsed, frame / elapsed,
1e3 * elapsed / frame);
- // chain.print_phase_timing();
+ // chain->print_phase_timing();
}
// Reset every 100 frames, so that local variations in frame times
frame = 0;
start = now;
}
-#endif
+ check_error();
}
+}
+
+void Mixer::subsample_chroma(GLuint src_tex, GLuint dst_tex)
+{
+ GLuint vao;
+ glGenVertexArrays(1, &vao);
+ check_error();
+
+ float vertices[] = {
+ 0.0f, 2.0f,
+ 0.0f, 0.0f,
+ 2.0f, 0.0f
+ };
+
+ 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);
- resource_pool->release_glsl_program(cbcr_program_num);
- resource_pool->release_2d_texture(chroma_tex);
- BMUSBCapture::stop_bm_thread();
}
-bool mixer_get_display_frame(DisplayFrame *frame)
+void Mixer::release_display_frame(DisplayFrame *frame)
+{
+ resource_pool->release_2d_texture(frame->texnum);
+ frame->texnum = 0;
+ frame->ready_fence.reset();
+}
+
+void Mixer::start()
{
- std::unique_lock<std::mutex> lock(display_frame_mutex);
- if (!has_current_display_frame && !has_ready_display_frame) {
+ mixer_thread = std::thread(&Mixer::thread_func, this);
+}
+
+void Mixer::quit()
+{
+ should_quit = true;
+ mixer_thread.join();
+}
+
+void Mixer::cut(Source source)
+{
+ 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_display_frame && has_ready_display_frame) {
+ if (has_current_frame && has_ready_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;
+ parent->release_display_frame(¤t_frame);
+ has_current_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;
+ 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_display_frame;
+ *frame = current_frame;
return true;
}
-void set_frame_ready_fallback(new_frame_ready_callback_t callback)
+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;
}
-std::thread mixer_thread;
-
-void start_mixer(QSurface *surface, QSurface *surface2, QSurface *surface3, QSurface *surface4)
+void Mixer::OutputChannel::set_size(int width, int height)
{
- mixer_thread = std::thread([surface, surface2, surface3, surface4]{
- mixer_thread_func(surface, surface2, surface3, surface4);
- });
-}
-
-void mixer_quit()
-{
- quit = true;
- mixer_thread.join();
+ this->width = width;
+ this->height = height;
}
projects / nageru / blobdiff