feat(*): added support for copying audio/subtitle streams and pause/abort (#1179)

* feat: added Makefile target for debian
* fix: fixed Dockerfile installing the wrong package
* feat: added hwaccel for encoder and decoder
* feat: added benchmark mode
* feat: removed hard-coded keyframe info
* chore: cleaned up headers and organized code
* style: cleaned up headers and includes
* feat: added a progress bar for CLI
* feat: removed atomicity requirements on processed frames
* feat: added pause and abort for CLI
* chore: updated default preset and crf settings
* feat: added support for copying audio and subtitle streams
* fix: fixed syntax issues for MSVC
* fix: fixed audio/subtitle timestamp rescaling

Signed-off-by: k4yt3x <i@k4yt3x.com>

include/decoder.h

@@ -1,11 +1,14 @@
 #ifndef DECODER_H
 #define DECODER_H
 
+extern "C" {
 #include <libavcodec/avcodec.h>
-#include <libavfilter/avfilter.h>
 #include <libavformat/avformat.h>
+}
 
 int init_decoder(
+    AVHWDeviceType hw_type,
+    AVBufferRef *hw_ctx,
     const char *input_filename,
     AVFormatContext **fmt_ctx,
     AVCodecContext **dec_ctx,