X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=mux.h;fp=mux.h;h=0000000000000000000000000000000000000000;hb=392f9d1ccb835c05a3874c4bea163788b2c37024;hp=9614bffbb5ae6603d1ef0d50353ef61b27715679;hpb=330ca2f0052b06d91004c6ceb73cd57ab95e7fe1;p=nageru

diff --git a/mux.h b/mux.h
deleted file mode 100644
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)