]> git.sesse.net Git - nageru/blobdiff - mixer.cpp
Improve GPLv3 compliance.
[nageru] / mixer.cpp
index 13fa29928ad8ecd9efc7f0d706c84621d51e761c..6e1e45d953762ba55523248ea9a38345fe669c23 100644 (file)
--- a/mixer.cpp
+++ b/mixer.cpp
 #include <movit/flat_input.h>
 #include <movit/image_format.h>
 #include <movit/resource_pool.h>
+#include <movit/util.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/time.h>
 #include <time.h>
-#include <util.h>
 #include <algorithm>
 #include <cmath>
 #include <condition_variable>
@@ -59,10 +59,42 @@ void convert_fixed24_to_fp32(float *dst, size_t out_channels, const uint8_t *src
        }
 }
 
+void insert_new_frame(RefCountedFrame frame, unsigned field_num, bool interlaced, unsigned card_index, InputState *input_state)
+{
+       if (interlaced) {
+               for (unsigned frame_num = FRAME_HISTORY_LENGTH; frame_num --> 1; ) {  // :-)
+                       input_state->buffered_frames[card_index][frame_num] =
+                               input_state->buffered_frames[card_index][frame_num - 1];
+               }
+               input_state->buffered_frames[card_index][0] = { frame, field_num };
+       } else {
+               for (unsigned frame_num = 0; frame_num < FRAME_HISTORY_LENGTH; ++frame_num) {
+                       input_state->buffered_frames[card_index][frame_num] = { frame, field_num };
+               }
+       }
+}
+
+string generate_local_dump_filename(int frame)
+{
+       time_t now = time(NULL);
+       tm now_tm;
+       localtime_r(&now, &now_tm);
+
+       char timestamp[256];
+       strftime(timestamp, sizeof(timestamp), "%F-%T%z", &now_tm);
+
+       // Use the frame number to disambiguate between two cuts starting
+       // on the same second.
+       char filename[256];
+       snprintf(filename, sizeof(filename), "%s%s-f%02d%s",
+               LOCAL_DUMP_PREFIX, timestamp, frame % 100, LOCAL_DUMP_SUFFIX);
+       return filename;
+}
+
 }  // namespace
 
 Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
-       : httpd(LOCAL_DUMP_FILE_NAME, WIDTH, HEIGHT),
+       : httpd(WIDTH, HEIGHT),
          num_cards(num_cards),
          mixer_surface(create_surface(format)),
          h264_encoder_surface(create_surface(format)),
@@ -70,6 +102,7 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
          limiter(OUTPUT_FREQUENCY),
          compressor(OUTPUT_FREQUENCY)
 {
+       httpd.open_output_file(generate_local_dump_filename(/*frame=*/0).c_str());
        httpd.start(9095);
 
        CHECK(init_movit(MOVIT_SHADER_DIR, MOVIT_DEBUG_OFF));
@@ -130,8 +163,6 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
                cards[card_index].usb->start_bm_capture();
        }
 
-       //chain->enable_phase_timing(true);
-
        // Set up stuff for NV12 conversion.
 
        // Cb/Cr shader.
@@ -143,7 +174,8 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
                "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);
+       vector<string> frag_shader_outputs;
+       cbcr_program_num = resource_pool->compile_glsl_program(cbcr_vert_shader, cbcr_frag_shader, frag_shader_outputs);
 
        r128.init(2, OUTPUT_FREQUENCY);
        r128.integr_start();
@@ -190,7 +222,7 @@ float find_peak(const float *samples, size_t num_samples)
 {
        float m = fabs(samples[0]);
        for (size_t i = 1; i < num_samples; ++i) {
-               m = std::max(m, fabs(samples[i]));
+               m = max(m, fabs(samples[i]));
        }
        return m;
 }
@@ -267,8 +299,7 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                        // Insert silence as needed.
                        fprintf(stderr, "Card %d dropped %d frame(s) (before timecode 0x%04x), inserting silence.\n",
                                card_index, dropped_frames, timecode);
-                       vector<float> silence;
-                       silence.resize(silence_samples * 2);
+                       vector<float> silence(silence_samples * 2, 0.0f);
                        for (int i = 0; i < dropped_frames; ++i) {
                                card->resampling_queue->add_input_samples(local_pts / double(TIMEBASE), silence.data(), silence_samples);
                                // Note that if the format changed in the meantime, we have
@@ -299,11 +330,12 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                if (card->should_quit) return;
        }
 
+       size_t expected_length = width * (height + extra_lines_top + extra_lines_bottom) * 2;
        if (video_frame.len - video_offset == 0 ||
-           video_frame.len - video_offset != size_t(width * (height + extra_lines_top + extra_lines_bottom) * 2)) {
+           video_frame.len - video_offset != expected_length) {
                if (video_frame.len != 0) {
-                       printf("Card %d: Dropping video frame with wrong length (%ld)\n",
-                               card_index, video_frame.len - video_offset);
+                       printf("Card %d: Dropping video frame with wrong length (%ld; expected %ld)\n",
+                               card_index, video_frame.len - video_offset, expected_length);
                }
                if (video_frame.owner) {
                        video_frame.owner->release_frame(video_frame);
@@ -316,6 +348,7 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                        card->new_data_ready = true;
                        card->new_frame = RefCountedFrame(FrameAllocator::Frame());
                        card->new_frame_length = frame_length;
+                       card->new_frame_interlaced = false;
                        card->new_data_ready_fence = nullptr;
                        card->dropped_frames = dropped_frames;
                        card->new_data_ready_changed.notify_all();
@@ -328,9 +361,8 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
        unsigned num_fields = interlaced ? 2 : 1;
        timespec frame_upload_start;
        if (interlaced) {
-               // NOTE: This isn't deinterlacing. This is just sending the two fields along
-               // as separate frames without considering anything like the half-field offset.
-               // We'll need to add a proper deinterlacer on the receiving side to get this right.
+               // Send the two fields along as separate frames; the other side will need to add
+               // a deinterlacer to actually get this right.
                assert(height % 2 == 0);
                height /= 2;
                assert(frame_length % 2 == 0);
@@ -338,6 +370,9 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                num_fields = 2;
                clock_gettime(CLOCK_MONOTONIC, &frame_upload_start);
        }
+       userdata->last_interlaced = interlaced;
+       userdata->last_frame_rate_nom = frame_rate_nom;
+       userdata->last_frame_rate_den = frame_rate_den;
        RefCountedFrame new_frame(video_frame);
 
        // Upload the textures.
@@ -371,10 +406,8 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                check_error();
                glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
                check_error();
-               glFlushMappedBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, video_frame.size);
+               glMemoryBarrier(GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
                check_error();
-               //glMemoryBarrier(GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
-               //check_error();
 
                glBindTexture(GL_TEXTURE_2D, userdata->tex_cbcr[field]);
                check_error();
@@ -415,6 +448,7 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
                        card->new_frame = new_frame;
                        card->new_frame_length = frame_length;
                        card->new_frame_field = field;
+                       card->new_frame_interlaced = interlaced;
                        card->new_data_ready_fence = fence;
                        card->dropped_frames = dropped_frames;
                        card->new_data_ready_changed.notify_all();
@@ -461,6 +495,7 @@ void Mixer::thread_func()
                                card_copy[card_index].new_frame = card->new_frame;
                                card_copy[card_index].new_frame_length = card->new_frame_length;
                                card_copy[card_index].new_frame_field = card->new_frame_field;
+                               card_copy[card_index].new_frame_interlaced = card->new_frame_interlaced;
                                card_copy[card_index].new_data_ready_fence = card->new_data_ready_fence;
                                card_copy[card_index].dropped_frames = card->dropped_frames;
                                card->new_data_ready = false;
@@ -491,6 +526,7 @@ void Mixer::thread_func()
                }
 
                if (audio_level_callback != nullptr) {
+                       unique_lock<mutex> lock(r128_mutex);
                        double loudness_s = r128.loudness_S();
                        double loudness_i = r128.integrated();
                        double loudness_range_low = r128.range_min();
@@ -525,7 +561,7 @@ void Mixer::thread_func()
                                continue;
 
                        assert(card->new_frame != nullptr);
-                       bmusb_current_rendering_frame[card_index] = card->new_frame;
+                       insert_new_frame(card->new_frame, card->new_frame_field, card->new_frame_interlaced, card_index, &input_state);
                        check_error();
 
                        // The new texture might still be uploaded,
@@ -536,19 +572,13 @@ void Mixer::thread_func()
                                glDeleteSync(card->new_data_ready_fence);
                                check_error();
                        }
-                       const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)card->new_frame->userdata;
-                       theme->set_input_textures(
-                               card_index,
-                               userdata->tex_y[card->new_frame_field],
-                               userdata->tex_cbcr[card->new_frame_field],
-                               userdata->last_width[card->new_frame_field],
-                               userdata->last_height[card->new_frame_field]);
                }
 
                // Get the main chain from the theme, and set its state immediately.
-               pair<EffectChain *, function<void()>> theme_main_chain = theme->get_chain(0, pts(), WIDTH, HEIGHT);
-               EffectChain *chain = theme_main_chain.first;
-               theme_main_chain.second();
+               Theme::Chain theme_main_chain = theme->get_chain(0, pts(), WIDTH, HEIGHT, input_state);
+               EffectChain *chain = theme_main_chain.chain;
+               theme_main_chain.setup_chain();
+               //theme_main_chain.chain->enable_phase_timing(true);
 
                GLuint y_tex, cbcr_tex;
                bool got_frame = h264_encoder->begin_frame(&y_tex, &cbcr_tex);
@@ -575,15 +605,8 @@ void Mixer::thread_func()
                RefCountedGLsync fence(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
                check_error();
 
-               // 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 (unsigned card_index = 0; card_index < num_cards; ++card_index) {
-                       input_frames.push_back(bmusb_current_rendering_frame[card_index]);
-               }
                const int64_t av_delay = TIMEBASE / 10;  // Corresponds to the fixed delay in resampling_queue.h. TODO: Make less hard-coded.
-               h264_encoder->end_frame(fence, pts_int + av_delay, input_frames);
+               h264_encoder->end_frame(fence, pts_int + av_delay, theme_main_chain.input_frames);
                ++frame;
                pts_int += card_copy[0].new_frame_length;
 
@@ -602,15 +625,11 @@ void Mixer::thread_func()
                // Set up preview and any additional channels.
                for (int i = 1; i < theme->get_num_channels() + 2; ++i) {
                        DisplayFrame display_frame;
-                       pair<EffectChain *, function<void()>> chain = theme->get_chain(i, pts(), WIDTH, HEIGHT);  // FIXME: dimensions
-                       display_frame.chain = chain.first;
-                       display_frame.setup_chain = chain.second;
+                       Theme::Chain chain = theme->get_chain(i, pts(), WIDTH, HEIGHT, input_state);  // FIXME: dimensions
+                       display_frame.chain = chain.chain;
+                       display_frame.setup_chain = chain.setup_chain;
                        display_frame.ready_fence = fence;
-
-                       // FIXME: possible to do better?
-                       for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
-                               display_frame.input_frames.push_back(bmusb_current_rendering_frame[card_index]);
-                       }
+                       display_frame.input_frames = chain.input_frames;
                        display_frame.temp_textures = {};
                        output_channel[i].output_frame(display_frame);
                }
@@ -625,6 +644,15 @@ void Mixer::thread_func()
                //      chain->print_phase_timing();
                }
 
+               if (should_cut.exchange(false)) {  // Test and clear.
+                       string filename = generate_local_dump_filename(frame);
+                       printf("Starting new recording: %s\n", filename.c_str());
+                       h264_encoder->shutdown();
+                       httpd.close_output_file();
+                       httpd.open_output_file(filename.c_str());
+                       h264_encoder.reset(new H264Encoder(h264_encoder_surface, WIDTH, HEIGHT, &httpd));
+               }
+
 #if 0
                // Reset every 100 frames, so that local variations in frame times
                // (especially for the first few frames, when the shaders are
@@ -750,7 +778,10 @@ void Mixer::process_audio_one_frame(int64_t frame_pts_int, int num_samples)
        vector<float> left, right;
        deinterleave_samples(samples_out, &left, &right);
        float *ptrs[] = { left.data(), right.data() };
-       r128.process(left.size(), ptrs);
+       {
+               unique_lock<mutex> lock(r128_mutex);
+               r128.process(left.size(), ptrs);
+       }
 
        // Send the samples to the sound card.
        if (alsa) {