doc: add ffmpeg-protocols.texi manual

doc/Makefile

@@ -6,7 +6,7 @@ DOCLIBS-$(CONFIG_AVFORMAT) += libavformat
 DOCLIBS-$(CONFIG_AVDEVICE) += libavdevice
 DOCLIBS-$(CONFIG_AVFILTER) += libavfilter
 
-COMPONENTS=$(PROGS-yes) ffmpeg-codecs ffmpeg-devices ffmpeg-filters ffmpeg-resampler ffmpeg-scaler ffmpeg-formats ffmpeg-utils
+COMPONENTS=$(PROGS-yes) ffmpeg-codecs ffmpeg-devices ffmpeg-filters ffmpeg-protocols ffmpeg-resampler ffmpeg-scaler ffmpeg-formats ffmpeg-utils
 
 MANPAGES    = $(COMPONENTS:%=doc/%.1)    $(DOCLIBS-yes:%=doc/%.3)
 PODPAGES    = $(COMPONENTS:%=doc/%.pod)  $(DOCLIBS-yes:%=doc/%.pod)

doc/ffmpeg-protocols.texi

+\input texinfo @c -*- texinfo -*-
+
+@settitle FFmpeg Protocols Documentation
+@titlepage
+@center @titlefont{FFmpeg Protocols Documentation}
+@end titlepage
+
+@top
+
+@contents
+
+@chapter Description
+@c man begin DESCRIPTION
+
+This document describes the input and output protocols provided by the
+libavformat library.
+
+@c man end DESCRIPTION
+
+@include protocols.texi
+
+@ignore
+
+@setfilename ffmpeg-protocols
+@settitle FFmpeg protocols
+
+@c man begin SEEALSO
+ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
+@c man end
+
+@c man begin AUTHORS
+See Git history (git://source.ffmpeg.org/ffmpeg)
+@c man end
+
+@end ignore
+
+@bye

doc/libavformat.texi

@@ -28,7 +28,7 @@ resource.
 @settitle multimedia muxing and demuxing library
 
 @c man begin SEEALSO
-ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavutil(3), libavcodec(3), ffmpeg-formats(1)
+ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavutil(3), libavcodec(3), ffmpeg-formats(1), ffmpeg-protocols(1)
 @c man end
 
 @c man begin AUTHORS