If you build with libsrt, make sure it is not linked to OpenSSL,
for license reasons.
+ - Optional: SVT-AV1, for encoding high-quality video suitable for streaming to
+ end users (higher quality than using x264, but not nearly as mature).
+ You will need at least version 1.0.0.
+
Futatabi also needs:
meson obj -Dcef_dir=/usr/lib/x86_64-linux-gnu/cef -Dcef_build_type=system -Dcef_no_icudtl=true
+ - Debian's SVT-AV1 is too old, so you will need to compile it yourself
+ if you wish to use it for streaming.
+
The patches/ directory contains a patch that helps zita-resampler performance.
It is meant for upstream, but was not in at the time Nageru was released.
sdl2_imagedep = dependency('SDL2_image', required: false)
sdl2dep = dependency('sdl2', required: false)
srtdep = dependency('srt', required: false)
+svtav1dep = dependency('SvtAv1Enc', required: false, version: '>=1.0.0')
sqlite3dep = dependency('sqlite3')
threaddep = dependency('threads')
vadrmdep = dependency('libva-drm')
# or gnutls libsrt, so we cannot check license compatibility here.
add_project_arguments('-DHAVE_SRT=1', language: 'cpp')
endif
+if svtav1dep.found()
+ add_project_arguments('-DHAVE_AV1=1', language: 'cpp')
+endif
top_include = include_directories('.')
nageru_srcs = []
nageru_deps = [shareddep, qt5deps, libjpegdep, movitdep, protobufdep,
vax11dep, vadrmdep, x11dep, libavformatdep, libswresampledep, libavcodecdep, libavutildep,
- libswscaledep, libusbdep, luajitdep, dldep, x264dep, alsadep, zitaresamplerdep,
+ libswscaledep, libusbdep, luajitdep, dldep, x264dep, svtav1dep, alsadep, zitaresamplerdep,
qcustomplotdep, threaddep, eigendep, srtdep, libdrmdep]
nageru_include_dirs = [include_directories('nageru')]
nageru_link_with = []
'nageru/timecode_renderer.cpp', 'nageru/tweaked_inputs.cpp', 'nageru/mjpeg_encoder.cpp']
# Streaming and encoding objects (largely the set that is shared between Nageru and Kaeru).
-stream_srcs = ['nageru/quicksync_encoder.cpp', 'nageru/x264_encoder.cpp', 'nageru/x264_dynamic.cpp', 'nageru/x264_speed_control.cpp', 'nageru/video_encoder.cpp',
+stream_srcs = ['nageru/quicksync_encoder.cpp', 'nageru/video_encoder.cpp',
+ 'nageru/x264_encoder.cpp', 'nageru/x264_dynamic.cpp', 'nageru/x264_speed_control.cpp',
'nageru/audio_encoder.cpp', 'nageru/ffmpeg_util.cpp', 'nageru/ffmpeg_capture.cpp',
'nageru/print_latency.cpp', 'nageru/basic_stats.cpp', 'nageru/ref_counted_frame.cpp',
'nageru/v4l_output.cpp']
+if svtav1dep.found()
+ stream_srcs += 'nageru/av1_encoder.cpp'
+endif
stream = static_library('stream', stream_srcs, dependencies: nageru_deps, include_directories: nageru_include_dirs)
nageru_link_with += stream
--- /dev/null
+#include "av1_encoder.h"
+
+#include <assert.h>
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <atomic>
+#include <cstdint>
+#include <functional>
+#include <mutex>
+
+#include <EbSvtAv1.h>
+#include <EbSvtAv1Enc.h>
+
+#include "defs.h"
+#include "flags.h"
+#include "shared/metrics.h"
+#include "shared/mux.h"
+#include "print_latency.h"
+#include "shared/timebase.h"
+#include "shared/memcpy_interleaved.h"
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+}
+
+using namespace movit;
+using namespace std;
+using namespace std::chrono;
+using namespace std::placeholders;
+
+namespace {
+
+// AV1Encoder can be restarted if --record-av1-video is set, so make these
+// metrics global.
+atomic<int64_t> metric_av1_queued_frames{0};
+atomic<int64_t> metric_av1_max_queued_frames{AV1_QUEUE_LENGTH};
+atomic<int64_t> metric_av1_dropped_frames{0};
+atomic<int64_t> metric_av1_output_frames_i{0};
+atomic<int64_t> metric_av1_output_frames_p{0};
+Histogram metric_av1_qp;
+LatencyHistogram av1_latency_histogram;
+
+once_flag av1_metrics_inited;
+
+} // namespace
+
+AV1Encoder::AV1Encoder(const AVOutputFormat *oformat)
+ : wants_global_headers(oformat->flags & AVFMT_GLOBALHEADER)
+{
+ call_once(av1_metrics_inited, []{
+ global_metrics.add("av1_queued_frames", {}, &metric_av1_queued_frames, Metrics::TYPE_GAUGE);
+ global_metrics.add("av1_max_queued_frames", {}, &metric_av1_max_queued_frames, Metrics::TYPE_GAUGE);
+ global_metrics.add("av1_dropped_frames", {}, &metric_av1_dropped_frames);
+ global_metrics.add("av1_output_frames", {{ "type", "i" }}, &metric_av1_output_frames_i);
+ global_metrics.add("av1_output_frames", {{ "type", "p" }}, &metric_av1_output_frames_p);
+
+ metric_av1_qp.init_uniform(50);
+ global_metrics.add("av1_qp", {}, &metric_av1_qp);
+ av1_latency_histogram.init("av1");
+ });
+
+ const size_t bytes_per_pixel = 1; // TODO: 10-bit support.
+ frame_pool.reset(new uint8_t[global_flags.width * global_flags.height * 2 * bytes_per_pixel * AV1_QUEUE_LENGTH]);
+ for (unsigned i = 0; i < AV1_QUEUE_LENGTH; ++i) {
+ free_frames.push(frame_pool.get() + i * (global_flags.width * global_flags.height * 2 * bytes_per_pixel));
+ }
+ encoder_thread = thread(&AV1Encoder::encoder_thread_func, this);
+}
+
+AV1Encoder::~AV1Encoder()
+{
+ should_quit = true;
+ queued_frames_nonempty.notify_all();
+ encoder_thread.join();
+}
+
+void AV1Encoder::add_frame(int64_t pts, int64_t duration, YCbCrLumaCoefficients ycbcr_coefficients, const uint8_t *data, const ReceivedTimestamps &received_ts)
+{
+ assert(!should_quit);
+
+ QueuedFrame qf;
+ qf.pts = pts;
+ qf.duration = duration;
+ qf.ycbcr_coefficients = ycbcr_coefficients;
+ qf.received_ts = received_ts;
+
+ {
+ lock_guard<mutex> lock(mu);
+ if (free_frames.empty()) {
+ fprintf(stderr, "WARNING: AV1 queue full, dropping frame with pts %" PRId64 "\n", pts);
+ ++metric_av1_dropped_frames;
+ return;
+ }
+
+ qf.data = free_frames.front();
+ free_frames.pop();
+ }
+
+ // Since we're copying anyway, we can unpack from NV12 to fully planar on the fly.
+ // SVT-AV1 makes its own copy, though, and it would have been nice to avoid the
+ // double-copy.
+ size_t bytes_per_pixel = 1; // TODO: 10-bit support.
+ size_t frame_size = global_flags.width * global_flags.height * bytes_per_pixel;
+ assert(global_flags.width % 2 == 0);
+ assert(global_flags.height % 2 == 0);
+ uint8_t *y = qf.data;
+ uint8_t *cb = y + frame_size;
+ uint8_t *cr = cb + frame_size / 4;
+ memcpy(y, data, frame_size);
+ memcpy_interleaved(cb, cr, data + frame_size, frame_size / 2);
+
+ {
+ lock_guard<mutex> lock(mu);
+ queued_frames.push(qf);
+ queued_frames_nonempty.notify_all();
+ metric_av1_queued_frames = queued_frames.size();
+ }
+}
+
+void AV1Encoder::init_av1()
+{
+ EbSvtAv1EncConfiguration config;
+ EbErrorType ret = svt_av1_enc_init_handle(&encoder, nullptr, &config);
+ if (ret != EB_ErrorNone) {
+ fprintf(stderr, "Error initializing SVT-AV1 handle (error %08x)\n", ret);
+ exit(EXIT_FAILURE);
+ }
+
+ config.enc_mode = global_flags.av1_preset;
+ config.intra_period_length = 63; // Approx. one second, conforms to the (n % 8) - 1 == 0 rule.
+ config.source_width = global_flags.width;
+ config.source_height = global_flags.height;
+ config.frame_rate_numerator = global_flags.av1_fps_num;
+ config.frame_rate_denominator = global_flags.av1_fps_den;
+ config.encoder_bit_depth = 8; // TODO: 10-bit support.
+ config.rate_control_mode = 2; // CBR.
+ config.pred_structure = 1; // PRED_LOW_DELAY_B (needed for CBR).
+ config.target_bit_rate = global_flags.av1_bitrate * 1000;
+
+ // NOTE: These should be in sync with the ones in quicksync_encoder.cpp (sps_rbsp()).
+ config.color_primaries = EB_CICP_CP_BT_709;
+ config.transfer_characteristics = EB_CICP_TC_SRGB;
+ if (global_flags.ycbcr_rec709_coefficients) {
+ config.matrix_coefficients = EB_CICP_MC_BT_709;
+ } else {
+ config.matrix_coefficients = EB_CICP_MC_BT_601;
+ }
+ config.color_range = EB_CR_STUDIO_RANGE;
+#if SVT_AV1_CHECK_VERSION(1, 0, 0)
+ config.chroma_sample_position = EB_CSP_VERTICAL;
+#endif
+
+ const vector<string> &extra_param = global_flags.av1_extra_param;
+ for (const string &str : extra_param) {
+ const size_t pos = str.find(',');
+ if (pos == string::npos) {
+ if (svt_av1_enc_parse_parameter(&config, str.c_str(), nullptr) != EB_ErrorNone) {
+ fprintf(stderr, "ERROR: SVT-AV1 rejected parameter '%s' with no value\n", str.c_str());
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ const string key = str.substr(0, pos);
+ const string value = str.substr(pos + 1);
+ if (svt_av1_enc_parse_parameter(&config, key.c_str(), value.c_str()) != EB_ErrorNone) {
+ fprintf(stderr, "ERROR: SVT-AV1 rejected parameter '%s' set to '%s'\n",
+ key.c_str(), value.c_str());
+ exit(EXIT_FAILURE);
+ }
+ }
+ }
+
+ ret = svt_av1_enc_set_parameter(encoder, &config);
+ if (ret != EB_ErrorNone) {
+ fprintf(stderr, "Error configuring SVT-AV1 (error %08x)\n", ret);
+ exit(EXIT_FAILURE);
+ }
+
+ ret = svt_av1_enc_init(encoder);
+ if (ret != EB_ErrorNone) {
+ fprintf(stderr, "Error initializing SVT-AV1 (error %08x)\n", ret);
+ exit(EXIT_FAILURE);
+ }
+
+ if (wants_global_headers) {
+ EbBufferHeaderType *header = NULL;
+
+ ret = svt_av1_enc_stream_header(encoder, &header);
+ if (ret != EB_ErrorNone) {
+ fprintf(stderr, "Error building SVT-AV1 header (error %08x)\n", ret);
+ exit(EXIT_FAILURE);
+ }
+
+ global_headers = string(reinterpret_cast<const char *>(header->p_buffer), header->n_filled_len);
+
+ svt_av1_enc_stream_header_release(header); // Don't care about errors.
+ }
+}
+
+void AV1Encoder::encoder_thread_func()
+{
+ if (nice(5) == -1) {
+ perror("nice()");
+ // No exit; it's not fatal.
+ }
+ pthread_setname_np(pthread_self(), "AV1_encode");
+ init_av1();
+ av1_init_done = true;
+
+ bool frames_left;
+
+ do {
+ QueuedFrame qf;
+
+ // Wait for a queued frame, then dequeue it.
+ {
+ unique_lock<mutex> lock(mu);
+ queued_frames_nonempty.wait(lock, [this]() { return !queued_frames.empty() || should_quit; });
+ if (!queued_frames.empty()) {
+ qf = queued_frames.front();
+ queued_frames.pop();
+ } else {
+ qf.pts = -1;
+ qf.duration = -1;
+ qf.data = nullptr;
+ }
+
+ metric_av1_queued_frames = queued_frames.size();
+ frames_left = !queued_frames.empty();
+ }
+
+ encode_frame(qf);
+
+ {
+ lock_guard<mutex> lock(mu);
+ free_frames.push(qf.data);
+ }
+
+ // We should quit only if the should_quit flag is set _and_ we have nothing
+ // in our queue.
+ } while (!should_quit || frames_left);
+
+ // Signal end of stream.
+ EbBufferHeaderType hdr;
+ hdr.n_alloc_len = 0;
+ hdr.n_filled_len = 0;
+ hdr.n_tick_count = 0;
+ hdr.p_app_private = nullptr;
+ hdr.pic_type = EB_AV1_INVALID_PICTURE;
+ hdr.p_buffer = nullptr;
+ hdr.metadata = nullptr;
+ hdr.flags = EB_BUFFERFLAG_EOS;
+ svt_av1_enc_send_picture(encoder, &hdr);
+
+ bool seen_eof = false;
+ do {
+ EbBufferHeaderType *buf;
+ EbErrorType ret = svt_av1_enc_get_packet(encoder, &buf, /*pic_send_done=*/true);
+ if (ret == EB_NoErrorEmptyQueue) {
+ assert(false);
+ }
+ seen_eof = (buf->flags & EB_BUFFERFLAG_EOS);
+ process_packet(buf);
+ } while (!seen_eof);
+
+ svt_av1_enc_deinit(encoder);
+ svt_av1_enc_deinit_handle(encoder);
+}
+
+void AV1Encoder::encode_frame(AV1Encoder::QueuedFrame qf)
+{
+ if (qf.data) {
+ EbSvtIOFormat pic;
+ pic.luma = qf.data;
+ pic.cb = pic.luma + global_flags.width * global_flags.height;
+ pic.cr = pic.cb + global_flags.width * global_flags.height / 4;
+ pic.y_stride = global_flags.width;
+ pic.cb_stride = global_flags.width / 2;
+ pic.cr_stride = global_flags.width / 2;
+ pic.width = global_flags.width;
+ pic.height = global_flags.height;
+ pic.origin_x = 0;
+ pic.origin_y = 0;
+ pic.color_fmt = EB_YUV420;
+ pic.bit_depth = EB_EIGHT_BIT; // TODO: 10-bit.
+
+ EbBufferHeaderType hdr;
+ hdr.p_buffer = reinterpret_cast<uint8_t *>(&pic);
+ hdr.n_alloc_len = global_flags.width * global_flags.height * 3 / 2; // TODO: 10-bit.
+ hdr.n_filled_len = hdr.n_alloc_len;
+ hdr.n_tick_count = 0;
+ hdr.p_app_private = reinterpret_cast<void *>(intptr_t(qf.duration));
+ hdr.pic_type = EB_AV1_INVALID_PICTURE; // Actually means auto, according to FFmpeg.
+ hdr.metadata = nullptr;
+ hdr.flags = 0;
+ hdr.pts = av_rescale_q(qf.pts, AVRational{ 1, TIMEBASE }, AVRational{ global_flags.av1_fps_den, global_flags.av1_fps_num });
+ if (hdr.pts <= last_pts) {
+ fprintf(stderr, "WARNING: Receiving frames faster than given --av1-fps value (%d/%d); dropping frame.\n",
+ global_flags.av1_fps_num, global_flags.av1_fps_den);
+ } else {
+ svt_av1_enc_send_picture(encoder, &hdr);
+ frames_being_encoded[hdr.pts] = qf.received_ts;
+ last_pts = hdr.pts;
+ }
+ }
+
+ for ( ;; ) {
+ EbBufferHeaderType *buf;
+ EbErrorType ret = svt_av1_enc_get_packet(encoder, &buf, /*pic_send_done=*/false);
+ if (ret == EB_NoErrorEmptyQueue) {
+ return;
+ }
+ process_packet(buf);
+ }
+}
+
+void AV1Encoder::process_packet(EbBufferHeaderType *buf)
+{
+ if (buf->n_filled_len == 0) {
+ // TODO: Can this ever happen?
+ svt_av1_enc_release_out_buffer(&buf);
+ return;
+ }
+
+ switch (buf->pic_type) {
+ case EB_AV1_KEY_PICTURE:
+ case EB_AV1_INTRA_ONLY_PICTURE:
+ ++metric_av1_output_frames_i;
+ break;
+ case EB_AV1_INTER_PICTURE: // We don't really know whether it's P or B.
+ ++metric_av1_output_frames_p;
+ break;
+ default:
+ break;
+ }
+ metric_av1_qp.count_event(buf->qp);
+
+ if (frames_being_encoded.count(buf->pts)) {
+ ReceivedTimestamps received_ts = frames_being_encoded[buf->pts];
+ frames_being_encoded.erase(buf->pts);
+
+ static int frameno = 0;
+ print_latency("Current AV1 latency (video inputs → network mux):",
+ received_ts, /*b_frame=*/false, &frameno, &av1_latency_histogram);
+ } else {
+ assert(false);
+ }
+
+ AVPacket pkt;
+ memset(&pkt, 0, sizeof(pkt));
+ pkt.buf = nullptr;
+ pkt.data = buf->p_buffer;
+ pkt.size = buf->n_filled_len;
+ pkt.stream_index = 0;
+ if (buf->pic_type == EB_AV1_KEY_PICTURE) {
+ pkt.flags = AV_PKT_FLAG_KEY;
+ } else if (buf->pic_type == EB_AV1_NON_REF_PICTURE) {
+ // I have no idea if this does anything in practice,
+ // but the libavcodec plugin does it.
+ pkt.flags = AV_PKT_FLAG_DISPOSABLE;
+ } else {
+ pkt.flags = 0;
+ }
+ pkt.pts = av_rescale_q(buf->pts, AVRational{ global_flags.av1_fps_den, global_flags.av1_fps_num }, AVRational{ 1, TIMEBASE });
+ pkt.dts = av_rescale_q(buf->dts, AVRational{ global_flags.av1_fps_den, global_flags.av1_fps_num }, AVRational{ 1, TIMEBASE });
+
+ for (Mux *mux : muxes) {
+ mux->add_packet(pkt, pkt.pts, pkt.dts);
+ }
+
+ svt_av1_enc_release_out_buffer(&buf);
+}
--- /dev/null
+// An AV1 encoder using the SVT-AV1 encoder library. (libaom does not seem
+// to be suitable for real-time streaming as of 2022, as it is not using
+// threads particularly efficiently.) AV1 is a newer format than H.264,
+// obviously both for better and for worse: Higher coding efficiency
+// (with sufficient amount of cores, SVT-AV1 is even better than x264
+// at higher frame rates), but generally smaller ecosystem, no speed
+// control, less sophisticated rate control, etc..
+//
+// We don't support storing AV1 to disk currently, only to HTTP.
+// We also don't support hardware AV1 encoding, as hardware supporting it
+// is very rare currently.
+//
+// Since SVT-AV1 does not support VFR, you need to declare the frame rate
+// up-front, using the --av1-framerate flag. If the given frame rate is
+// too high (ie., you are producing frames too slowly), rate control will get
+// confused and use too little bitrate. If it is too low, Nageru will need to
+// drop frames before input to the encoder.
+
+#ifndef _AV1_ENCODER_H
+#define _AV1_ENCODER_H 1
+
+#include <sched.h>
+#include <stdint.h>
+#include <atomic>
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <queue>
+#include <string>
+#include <thread>
+#include <unordered_map>
+#include <vector>
+
+extern "C" {
+#include <libavformat/avformat.h>
+}
+
+#include <movit/image_format.h>
+
+#include "defs.h"
+#include "shared/metrics.h"
+#include "print_latency.h"
+#include "video_codec_interface.h"
+
+class Mux;
+struct EbBufferHeaderType;
+struct EbComponentType;
+
+class AV1Encoder : public VideoCodecInterface {
+public:
+ AV1Encoder(const AVOutputFormat *oformat); // Does not take ownership.
+
+ // Called after the last frame. Will block; once this returns,
+ // the last data is flushed.
+ ~AV1Encoder() override;
+
+ // Must be called before first frame. Does not take ownership.
+ void add_mux(Mux *mux) override { muxes.push_back(mux); }
+
+ // <data> is taken to be raw NV12 data of WIDTHxHEIGHT resolution.
+ // Does not block.
+ void add_frame(int64_t pts, int64_t duration, movit::YCbCrLumaCoefficients ycbcr_coefficients, const uint8_t *data, const ReceivedTimestamps &received_ts) override;
+
+ std::string get_global_headers() const override {
+ while (!av1_init_done) {
+ sched_yield();
+ }
+ return global_headers;
+ }
+
+private:
+ struct QueuedFrame {
+ int64_t pts, duration;
+ movit::YCbCrLumaCoefficients ycbcr_coefficients;
+ uint8_t *data;
+ ReceivedTimestamps received_ts;
+ };
+ void encoder_thread_func();
+ void init_av1();
+ void encode_frame(QueuedFrame qf);
+ void process_packet(EbBufferHeaderType *buf); // Takes ownership.
+
+ // One big memory chunk of all 50 (or whatever) frames, allocated in
+ // the constructor. All data functions just use pointers into this
+ // pool.
+ std::unique_ptr<uint8_t[]> frame_pool;
+
+ std::vector<Mux *> muxes;
+ const bool wants_global_headers;
+
+ std::string global_headers;
+
+ std::thread encoder_thread;
+ std::atomic<bool> av1_init_done{false};
+ std::atomic<bool> should_quit{false};
+ EbComponentType *encoder;
+
+ int64_t last_pts = -1;
+
+ // Protects everything below it.
+ std::mutex mu;
+
+ // Frames that are not being encoded or waiting to be encoded,
+ // so that add_frame() can use new ones.
+ // TODO: Do we actually need this queue, or is SVT-AV1's queue
+ // non-blocking so that we can drop it?
+ std::queue<uint8_t *> free_frames;
+
+ // Frames that are waiting to be encoded (ie., add_frame() has been
+ // called, but they are not picked up for encoding yet).
+ std::queue<QueuedFrame> queued_frames;
+
+ // Whenever the state of <queued_frames> changes.
+ std::condition_variable queued_frames_nonempty;
+
+ // Key is the pts of the frame.
+ std::unordered_map<int64_t, ReceivedTimestamps> frames_being_encoded;
+};
+
+#endif // !defined(_AV1_ENCODER_H)
#define AUDIO_OUTPUT_CODEC_NAME "pcm_s32le"
#define DEFAULT_AUDIO_OUTPUT_BIT_RATE 0
#define DEFAULT_X264_OUTPUT_BIT_RATE 4500 // 5 Mbit after making room for some audio and TCP overhead.
+#define DEFAULT_AV1_OUTPUT_BIT_RATE 4500 // Same.
#define LOCAL_DUMP_PREFIX "record-"
#define LOCAL_DUMP_SUFFIX ".nut"
// In number of frames. Comes in addition to any internal queues in x264
// (frame threading, lookahead, etc.).
#define X264_QUEUE_LENGTH 50
+#define AV1_QUEUE_LENGTH 50
#define X264_DEFAULT_PRESET "ultrafast"
#define X264_DEFAULT_TUNE "film"
+#define DEFAULT_AV1_PRESET 12
+#define DEFAULT_AV1_FPS_NUM 60000
+#define DEFAULT_AV1_FPS_DEN 1001
+
#endif // !defined(_DEFS_H)
OPTION_V4L_OUTPUT,
OPTION_HTTP_UNCOMPRESSED_VIDEO,
OPTION_HTTP_X264_VIDEO,
+ OPTION_HTTP_AV1_VIDEO,
OPTION_RECORD_X264_VIDEO,
OPTION_SEPARATE_X264_DISK_ENCODE,
OPTION_X264_PRESET,
OPTION_X264_SEPARATE_DISK_BITRATE,
OPTION_X264_SEPARATE_DISK_CRF,
OPTION_X264_SEPARATE_DISK_PARAM,
+ OPTION_AV1_PRESET,
+ OPTION_AV1_BITRATE,
+ OPTION_AV1_FPS,
+ OPTION_AV1_PARAM,
OPTION_HTTP_MUX,
OPTION_HTTP_COARSE_TIMEBASE,
OPTION_HTTP_AUDIO_CODEC,
fprintf(stderr, " incompatible with --x264-separate-disk-bitrate\n");
fprintf(stderr, " --x264-separate-disk-param=NAME[,VALUE] set any x264 parameter, for fine tuning\n");
}
+#ifdef HAVE_AV1
+ fprintf(stderr, " --http-av1-video send AV1-compressed video to HTTP clients\n");
+ fprintf(stderr, " --av1-preset SVT-AV1 quality preset (default %d, from -2 to 13)\n",
+ DEFAULT_AV1_PRESET);
+ fprintf(stderr, " --av1-bitrate AV1 bitrate (in kilobit/sec, default %d)\n",
+ DEFAULT_AV1_OUTPUT_BIT_RATE);
+ fprintf(stderr, " --av1-fps=NUM[/DEN] AV1 encoded frame rate (default %d/%d)\n",
+ DEFAULT_AV1_FPS_NUM, DEFAULT_AV1_FPS_DEN);
+ fprintf(stderr, " --av1-param=NAME[,VALUE] set any SVT-AV1 parameter, for fine tuning\n");
+#endif
fprintf(stderr, " --http-mux=NAME mux to use for HTTP streams (default " DEFAULT_STREAM_MUX_NAME ")\n");
fprintf(stderr, " --http-audio-codec=NAME audio codec to use for HTTP streams\n");
fprintf(stderr, " (default is to use the same as for the recording)\n");
{ "x264-separate-disk-bitrate", required_argument, 0, OPTION_X264_SEPARATE_DISK_BITRATE },
{ "x264-separate-disk-crf", required_argument, 0, OPTION_X264_SEPARATE_DISK_CRF },
{ "x264-separate-disk-param", required_argument, 0, OPTION_X264_SEPARATE_DISK_PARAM },
+#ifdef HAVE_AV1
+ { "http-av1-video", no_argument, 0, OPTION_HTTP_AV1_VIDEO },
+ { "av1-preset", required_argument, 0, OPTION_AV1_PRESET },
+ { "av1-bitrate", required_argument, 0, OPTION_AV1_BITRATE },
+ { "av1-fps", required_argument, 0, OPTION_AV1_FPS },
+ { "av1-param", required_argument, 0, OPTION_AV1_PARAM },
+#endif
{ "http-mux", required_argument, 0, OPTION_HTTP_MUX },
{ "http-audio-codec", required_argument, 0, OPTION_HTTP_AUDIO_CODEC },
{ "http-audio-bitrate", required_argument, 0, OPTION_HTTP_AUDIO_BITRATE },
global_flags.x264_video_to_http = true;
global_flags.x264_separate_disk_encode = true;
break;
+ case OPTION_HTTP_AV1_VIDEO:
+ global_flags.av1_video_to_http = true;
+ break;
case OPTION_X264_PRESET:
global_flags.x264_preset = optarg;
break;
case OPTION_X264_SEPARATE_DISK_PARAM:
global_flags.x264_separate_disk_extra_param.push_back(optarg);
break;
+ case OPTION_AV1_PRESET:
+ global_flags.av1_preset = atoi(optarg);
+ break;
+ case OPTION_AV1_BITRATE:
+ global_flags.av1_bitrate = atoi(optarg);
+ break;
+ case OPTION_AV1_FPS: {
+ string str = optarg;
+ const size_t pos = str.find('/');
+ if (pos == string::npos) {
+ global_flags.av1_fps_num = stoi(str);
+ global_flags.av1_fps_den = 1;
+ } else {
+ const string num = str.substr(0, pos);
+ const string den = str.substr(pos + 1);
+ global_flags.av1_fps_num = stoi(num);
+ global_flags.av1_fps_den = stoi(den);
+ }
+ break;
+ }
+ case OPTION_AV1_PARAM:
+ global_flags.av1_extra_param.push_back(optarg);
+ break;
case OPTION_FLAT_AUDIO:
// If --flat-audio is given, turn off everything that messes with the sound,
// except the final makeup gain.
break;
case OPTION_10_BIT_OUTPUT:
global_flags.ten_bit_output = true;
- global_flags.x264_video_to_disk = true;
- global_flags.x264_video_to_http = true;
global_flags.x264_bit_depth = 10;
break;
case OPTION_INPUT_YCBCR_INTERPRETATION: {
}
}
- if (global_flags.uncompressed_video_to_http &&
- global_flags.x264_video_to_http) {
- fprintf(stderr, "ERROR: --http-uncompressed-video and --http-x264-video are mutually incompatible\n");
+ if (global_flags.uncompressed_video_to_http +
+ global_flags.x264_video_to_http +
+ global_flags.av1_video_to_http > 1) {
+ fprintf(stderr, "ERROR: --http-{uncompressed,x264,av1}-video are mutually incompatible\n");
exit(1);
}
+ if (global_flags.ten_bit_output) {
+ global_flags.x264_video_to_disk = true; // No 10-bit Quick Sync support.
+ if (global_flags.av1_video_to_http) {
+ fprintf(stderr, "ERROR: 10-bit AV1 output is not supported yet\n");
+ exit(1);
+ } else {
+ global_flags.x264_video_to_http = true;
+ }
+ }
if (global_flags.min_num_cards <= 0) {
fprintf(stderr, "ERROR: --num-cards must be at least 1\n");
exit(1);
bool x264_video_to_http = false;
bool x264_video_to_disk = false; // Disables Quick Sync entirely. Implies x264_video_to_http == true.
bool x264_separate_disk_encode = false; // Disables Quick Sync entirely. Implies x264_video_to_disk == true.
+ bool av1_video_to_http = false;
std::vector<std::string> theme_dirs { ".", PREFIX "/share/nageru" };
std::string recording_dir = ".";
std::string theme_filename = "theme.lua";
int x264_vbv_buffer_size = -1; // In kilobits. 0 = one-frame VBV, -1 = same as <x264_bitrate> (one-second VBV).
std::vector<std::string> x264_extra_param; // In “key[,value]” format.
+ int av1_preset = DEFAULT_AV1_PRESET;
+ int av1_bitrate = DEFAULT_AV1_OUTPUT_BIT_RATE;
+ int av1_fps_num = DEFAULT_AV1_FPS_NUM, av1_fps_den = DEFAULT_AV1_FPS_DEN;
+ std::vector<std::string> av1_extra_param; // In “key[,value]” format.
+
std::string x264_separate_disk_preset; // Empty will be overridden by X264_DEFAULT_PRESET, unless speedcontrol is set.
std::string x264_separate_disk_tune = X264_DEFAULT_TUNE;
int x264_separate_disk_bitrate = -1;
} else if (global_flags.x264_video_to_http) {
fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-x264-video.\n");
use_zerocopy = false;
+ } else if (global_flags.av1_video_to_http) {
+ fprintf(stderr, "Disabling zerocopy H.264 encoding due to --http-av1-video.\n");
+ use_zerocopy = false;
} else if (!global_flags.v4l_output_device.empty()) {
fprintf(stderr, "Disabling zerocopy H.264 encoding due to --v4l-output.\n");
use_zerocopy = false;
file_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
}
if (!global_flags.uncompressed_video_to_http &&
- !global_flags.x264_video_to_http) {
+ !global_flags.x264_video_to_http &&
+ !global_flags.av1_video_to_http) {
stream_mux->add_packet(pkt, task.pts + global_delay(), task.dts + global_delay());
}
}
if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
assert(http_encoder != nullptr);
assert(disk_encoder != nullptr);
+ } else if (global_flags.av1_video_to_http) {
+ assert(http_encoder != nullptr);
} else {
assert(http_encoder == nullptr);
assert(disk_encoder == nullptr);
uint8_t *data = reinterpret_cast<uint8_t *>(surf->y_ptr);
if (global_flags.uncompressed_video_to_http) {
add_packet_for_uncompressed_frame(pts, duration, data);
- } else if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
+ } else if (http_encoder != nullptr) {
http_encoder->add_frame(pts, duration, frame.ycbcr_coefficients, data, received_ts);
- }
- if (global_flags.x264_separate_disk_encode) {
+ } if (disk_encoder != nullptr && disk_encoder != http_encoder) {
disk_encoder->add_frame(pts, duration, frame.ycbcr_coefficients, data, received_ts);
}
std::mutex file_audio_encoder_mutex;
std::unique_ptr<AudioEncoder> file_audio_encoder;
- VideoCodecInterface *http_encoder; // nullptr if not using x264.
+ VideoCodecInterface *http_encoder; // nullptr if not using x264/SVT-AV1.
VideoCodecInterface *disk_encoder;
std::unique_ptr<V4LOutput> v4l_output; // nullptr if not using V4L2 output.
}
#include "audio_encoder.h"
+#ifdef HAVE_AV1
+#include "av1_encoder.h"
+#endif
#include "defs.h"
#include "shared/ffmpeg_raii.h"
#include "flags.h"
if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
x264_encoder.reset(new X264Encoder(oformat, /*use_separate_disk_params=*/false));
}
- X264Encoder *http_encoder = x264_encoder.get();
- X264Encoder *disk_encoder = x264_encoder.get();
+ VideoCodecInterface *http_encoder = x264_encoder.get();
+ VideoCodecInterface *disk_encoder = x264_encoder.get();
+#ifdef HAVE_AV1
+ if (global_flags.av1_video_to_http) {
+ av1_encoder.reset(new AV1Encoder(oformat));
+ http_encoder = av1_encoder.get();
+ }
+#endif
if (global_flags.x264_separate_disk_encode) {
x264_disk_encoder.reset(new X264Encoder(oformat, /*use_separate_disk_params=*/true));
disk_encoder = x264_disk_encoder.get();
if (global_flags.x264_video_to_http) {
x264_encoder->add_mux(stream_mux.get());
}
+#ifdef HAVE_AV1
+ if (global_flags.av1_video_to_http) {
+ av1_encoder->add_mux(stream_mux.get());
+ }
+#endif
}
VideoEncoder::~VideoEncoder()
Mux::Codec video_codec;
if (global_flags.uncompressed_video_to_http) {
video_codec = Mux::CODEC_NV12;
+ } else if (global_flags.av1_video_to_http) {
+ video_codec = Mux::CODEC_AV1;
} else {
video_codec = Mux::CODEC_H264;
}
string video_extradata;
if (global_flags.x264_video_to_http || global_flags.x264_video_to_disk) {
video_extradata = x264_encoder->get_global_headers();
+#ifdef HAVE_AV1
+ } else if (global_flags.av1_video_to_http) {
+ video_extradata = av1_encoder->get_global_headers();
+#endif
}
stream_mux.reset(new Mux(avctx, width, height, video_codec, video_extradata, stream_audio_encoder->get_codec_parameters().get(),
#include "shared/ref_counted_gl_sync.h"
class AudioEncoder;
+class AV1Encoder;
class DiskSpaceEstimator;
class HTTPD;
class Mux;
std::unique_ptr<AudioEncoder> stream_audio_encoder;
std::unique_ptr<X264Encoder> x264_encoder; // nullptr if not using x264.
std::unique_ptr<X264Encoder> x264_disk_encoder; // nullptr if not using x264, or if not having separate disk encodes.
+#ifdef HAVE_AV1
+ std::unique_ptr<AV1Encoder> av1_encoder; // nullptr if not using SVT-AV1.
+#endif
std::string stream_mux_header;
MuxMetrics stream_mux_metrics;
avstream_video->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
if (video_codec == CODEC_H264) {
avstream_video->codecpar->codec_id = AV_CODEC_ID_H264;
+ } else if (video_codec == CODEC_AV1) {
+ avstream_video->codecpar->codec_id = AV_CODEC_ID_AV1;
} else if (video_codec == CODEC_NV12) {
avstream_video->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
avstream_video->codecpar->codec_tag = avcodec_pix_fmt_to_codec_tag(AV_PIX_FMT_NV12);
public:
enum Codec {
CODEC_H264,
+ CODEC_AV1,
CODEC_NV12, // Uncompressed 4:2:0.
CODEC_MJPEG
};
projects / nageru / commitdiff