Mixer *global_mixer = nullptr;
+Mixer::Mixer(QSurface *surface1, QSurface *surface2, QSurface *surface3, QSurface *surface4)
+ : surface1(surface1), surface2(surface2), surface3(surface3), surface4(surface4)
+{
+ CHECK(init_movit(MOVIT_SHADER_DIR, MOVIT_DEBUG_OFF));
+ check_error();
+
+ chain.reset(new EffectChain(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;
+
+ 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]);
+ 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);
+
+ 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();
+
+ h264_encoder.reset(new H264Encoder(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(&Mixer::bm_frame, this, 0, _1, _2, _3, _4, _5, _6, _7));
+ pbo_allocator1.reset(new PBOFrameAllocator(1280 * 750 * 2 + 44));
+ cards[0].usb->set_video_frame_allocator(pbo_allocator1.get());
+ cards[0].usb->configure_card();
+
+ pbo_allocator2.reset(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(&Mixer::bm_frame, this, 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();
+ }
+
+ 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);
+ }
+
+ //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");
+ 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);
+}
+
+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)
CHECK(padding_effect->set_float("border_offset_bottom", y1 - (floor(y0) + height)));
}
-void Mixer::thread_func(QSurface *surface, QSurface *surface2, QSurface *surface3, QSurface *surface4)
+void Mixer::thread_func()
{
cards[0].surface = surface3;
#if NUM_CARDS == 2
eglBindAPI(EGL_OPENGL_API);
QOpenGLContext *context = create_context();
- if (!make_current(context, surface)) {
+ if (!make_current(context, surface1)) {
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(&Mixer::bm_frame, this, 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(&Mixer::bm_frame, this, 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);
- }
-
- //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);
}
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);
+ 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);
+ chain->render_to_fbo(ycbcr_fbo, WIDTH, HEIGHT);
resource_pool->release_fbo(ycbcr_fbo);
// Set up for extraction.
check_error();
resource_pool->release_fbo(cbcr_fbo);
+ resource_pool->release_2d_texture(chroma_tex);
- h264_encoder.end_frame(fence, input_frames_to_release);
+ 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).
new_frame_ready_callback();
}
-#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();
}
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)
has_new_frame_ready_callback = true;
}
-void Mixer::start(QSurface *surface, QSurface *surface2, QSurface *surface3, QSurface *surface4)
+void Mixer::start()
{
- mixer_thread = std::thread([this, surface, surface2, surface3, surface4]{
- thread_func(surface, surface2, surface3, surface4);
- });
+ mixer_thread = std::thread(&Mixer::thread_func, this);
}
void Mixer::quit()
// The actual video mixer, running in its own separate background thread.
#include <epoxy/gl.h>
+#undef Success
+#include <movit/effect_chain.h>
#include <functional>
#include "bmusb.h"
+#include "h264encode.h"
+#include "pbo_frame_allocator.h"
#include "ref_counted_gl_sync.h"
#define NUM_CARDS 2
namespace movit {
-class Effect;
-class ResourcePool;
+class YCbCrInput;
}
class QOpenGLContext;
class QSurface;
class Mixer {
public:
- void start(QSurface *surface, QSurface *surface2, QSurface *surface3, QSurface *surface4);
+ // The surfaces are used for offscreen destinations for OpenGL contexts we need.
+ // TODO: Figure out something slightly more generic.
+ Mixer(QSurface *surface1, QSurface *surface2, QSurface *surface3, QSurface *surface4);
+ ~Mixer();
+ void start();
void quit();
enum Source {
FrameAllocator::Frame video_frame, size_t video_offset, uint16_t video_format,
FrameAllocator::Frame audio_frame, size_t audio_offset, uint16_t audio_format);
void place_rectangle(movit::Effect *resample_effect, movit::Effect *padding_effect, float x0, float y0, float x1, float y1);
- void thread_func(QSurface *surface, QSurface *surface2, QSurface *surface3, QSurface *surface4);
+ void thread_func();
- Source current_source = SOURCE_INPUT1;
+ std::unique_ptr<PBOFrameAllocator> pbo_allocator1, pbo_allocator2;
+
+ QSurface *surface1, *surface2, *surface3, *surface4;
+ std::unique_ptr<movit::EffectChain> chain;
+ movit::ResourcePool *resource_pool; // Owned by <chain>.
+ GLuint cbcr_program_num; // Owned by <resource_pool>.
+ std::unique_ptr<H264Encoder> h264_encoder;
- movit::ResourcePool *resource_pool;
+ // Effects part of <chain>. Owned by <chain>.
+ movit::YCbCrInput *input[NUM_CARDS];
+ movit::Effect *resample_effect, *resample2_effect;
+ movit::Effect *padding_effect, *padding2_effect;
+
+ Source current_source = SOURCE_INPUT1;
+ int frame = 0;
std::mutex display_frame_mutex;
DisplayFrame current_display_frame, ready_display_frame; // protected by <frame_mutex>
BMUSBCapture *usb;
// Threading stuff
- bool thread_initialized;
+ bool thread_initialized = false;
QSurface *surface;
QOpenGLContext *context;
- bool new_data_ready; // Whether new_frame contains anything.
+ bool new_data_ready = false; // Whether new_frame contains anything.
FrameAllocator::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>
+ FrameAllocator::Frame bmusb_current_rendering_frame[NUM_CARDS];
+
new_frame_ready_callback_t new_frame_ready_callback;
bool has_new_frame_ready_callback = false;
std::thread mixer_thread;
- bool should_quit;
+ bool should_quit = false;
};
extern Mixer *global_mixer;
projects / nageru / commitdiff