Move everything into a separate futatabi/ subdir, for the upcoming merge with Futatabi.

[nageru] / mux.h

diff --git a/mux.h b/mux.h
deleted file mode 100644 (file)
index 9614bff..0000000
--- a/mux.h
+++ /dev/null
@@ -1,111 +0,0 @@
-#ifndef _MUX_H
-#define _MUX_H 1
-
-// Wrapper around an AVFormat mux.
-
-extern "C" {
-#include <libavcodec/avcodec.h>
-#include <libavformat/avformat.h>
-}
-
-#include <sys/types.h>
-#include <atomic>
-#include <condition_variable>
-#include <functional>
-#include <mutex>
-#include <string>
-#include <utility>
-#include <thread>
-#include <vector>
-
-#include "timebase.h"
-
-struct MuxMetrics {
-       // “written” will usually be equal video + audio + mux overhead,
-       // except that there could be buffered packets that count in audio or video
-       // but not yet in written.
-       std::atomic<int64_t> metric_video_bytes{0}, metric_audio_bytes{0}, metric_written_bytes{0};
-
-       // Registers in global_metrics.
-       void init(const std::vector<std::pair<std::string, std::string>> &labels);
-
-       void reset()
-       {
-               metric_video_bytes = 0;
-               metric_audio_bytes = 0;
-               metric_written_bytes = 0;
-       }
-};
-
-class Mux {
-public:
-       enum Codec {
-               CODEC_H264,
-               CODEC_NV12,  // Uncompressed 4:2:0.
-       };
-       enum WriteStrategy {
-               // add_packet() will write the packet immediately, unless plugged.
-               WRITE_FOREGROUND,
-
-               // All writes will happen on a separate thread, so add_packet()
-               // won't block. Use this if writing to a file and you might be
-               // holding a mutex (because blocking I/O with a mutex held is
-               // not good). Note that this will clone every packet, so it has
-               // higher overhead.
-               WRITE_BACKGROUND,
-       };
-
-       // Takes ownership of avctx. <write_callback> will be called every time
-       // a write has been made to the video stream (id 0), with the pts of
-       // the just-written frame. (write_callback can be nullptr.)
-       // Does not take ownership of <metrics>; elements in there, if any,
-       // will be added to.
-       Mux(AVFormatContext *avctx, int width, int height, Codec video_codec, const std::string &video_extradata, const AVCodecParameters *audio_codecpar, int time_base, std::function<void(int64_t)> write_callback, WriteStrategy write_strategy, const std::vector<MuxMetrics *> &metrics);
-       ~Mux();
-       void add_packet(const AVPacket &pkt, int64_t pts, int64_t dts, AVRational timebase = { 1, TIMEBASE }, int stream_index_override = -1);
-
-       // As long as the mux is plugged, it will not actually write anything to disk,
-       // just queue the packets. Once it is unplugged, the packets are reordered by pts
-       // and written. This is primarily useful if you might have two different encoders
-       // writing to the mux at the same time (because one is shutting down), so that
-       // pts might otherwise come out-of-order.
-       //
-       // You can plug and unplug multiple times; only when the plug count reaches zero,
-       // something will actually happen.
-       void plug();
-       void unplug();
-
-private:
-       // If write_strategy == WRITE_FOREGORUND, Must be called with <mu> held.
-       void write_packet_or_die(const AVPacket &pkt, int64_t unscaled_pts);
-       void thread_func();
-
-       WriteStrategy write_strategy;
-
-       std::mutex mu;
-
-       // These are only in use if write_strategy == WRITE_BACKGROUND.
-       std::atomic<bool> writer_thread_should_quit{false};
-       std::thread writer_thread;
-
-       AVFormatContext *avctx;  // Protected by <mu>, iff write_strategy == WRITE_BACKGROUND.
-       int plug_count = 0;  // Protected by <mu>.
-
-       // Protected by <mu>. If write_strategy == WRITE_FOREGROUND,
-       // this is only in use when plugging.
-       struct QueuedPacket {
-               AVPacket *pkt;
-               int64_t unscaled_pts;
-       };
-       std::vector<QueuedPacket> packet_queue;
-       std::condition_variable packet_queue_ready;
-
-       AVStream *avstream_video, *avstream_audio;
-
-       std::function<void(int64_t)> write_callback;
-       std::vector<MuxMetrics *> metrics;
-
-       friend struct PacketBefore;
-};
-
-#endif  // !defined(_MUX_H)