libndi.patch

From d7caa351e2dada0d493fd745bbd6a00f0e3f2d66 Mon Sep 17 00:00:00 2001
From: tytan652 <tytan652@tytanium.xyz>
Date: Thu, 17 Feb 2022 20:21:33 +0100
Subject: [PATCH] Revert "lavd: Remove libndi_newtek"

This reverts commit 4b32f8b3ebfa011fcc5991bcaa97c3f5b61b49ad.
---
 configure                |  7 +++++
 doc/indevs.texi          | 65 ++++++++++++++++++++++++++++++++++++++++
 doc/outdevs.texi         | 45 ++++++++++++++++++++++++++++
 libavdevice/Makefile     |  4 +++
 libavdevice/alldevices.c |  2 ++
 5 files changed, 123 insertions(+)

diff --git a/configure b/configure
index 1535dc3c5b..dcfc925814 100755
--- a/configure
+++ b/configure
@@ -306,6 +306,7 @@ External library support:
   --enable-lv2             enable LV2 audio filtering [no]
   --disable-lzma           disable lzma [autodetect]
   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
+  --enable-libndi_newtek   enable Newteck NDI I/O support [no]
   --enable-mbedtls         enable mbedTLS, needed for https support
                            if openssl, gnutls or libtls is not used [no]
   --enable-mediacodec      enable Android MediaCodec support [no]
@@ -1784,6 +1785,7 @@ EXTERNAL_LIBRARY_GPL_LIST="
 
 EXTERNAL_LIBRARY_NONFREE_LIST="
     decklink
+    libndi_newtek
     libfdk_aac
     libtls
 "
@@ -3496,6 +3498,10 @@ decklink_indev_suggest="libzvbi"
 decklink_outdev_deps="decklink threads"
 decklink_outdev_suggest="libklvanc"
 decklink_outdev_extralibs="-lstdc++"
+libndi_newtek_indev_deps="libndi_newtek"
+libndi_newtek_indev_extralibs="-lndi"
+libndi_newtek_outdev_deps="libndi_newtek"
+libndi_newtek_outdev_extralibs="-lndi"
 dshow_indev_deps="IBaseFilter"
 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
 fbdev_indev_deps="linux_fb_h"
@@ -6493,6 +6499,7 @@ enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checki
 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
 enabled decklink          && { require_headers DeckLinkAPI.h &&
                                { test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a0b0000" || die "ERROR: Decklink API version must be >= 10.11"; } }
+enabled libndi_newtek     && require_headers Processing.NDI.Lib.h
 enabled frei0r            && require_headers "frei0r.h"
 enabled gmp               && require gmp gmp.h mpz_export -lgmp
 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
diff --git a/doc/indevs.texi b/doc/indevs.texi
index 9d8020311a..6e1ed98dc0 100644
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -1136,6 +1136,71 @@ Set the video size given as a string such as @code{640x480} or @code{hd720}.
 Default is @code{qvga}.
 @end table
 
+@section libndi_newtek
+
+The libndi_newtek input device provides capture capabilities for using NDI (Network
+Device Interface, standard created by NewTek).
+
+Input filename is a NDI source name that could be found by sending -find_sources 1
+to command line - it has no specific syntax but human-readable formatted.
+
+To enable this input device, you need the NDI SDK and you
+need to configure with the appropriate @code{--extra-cflags}
+and @code{--extra-ldflags}.
+
+@subsection Options
+
+@table @option
+
+@item find_sources
+If set to @option{true}, print a list of found/available NDI sources and exit.
+Defaults to @option{false}.
+
+@item wait_sources
+Override time to wait until the number of online sources have changed.
+Defaults to @option{0.5}.
+
+@item allow_video_fields
+When this flag is @option{false}, all video that you receive will be progressive.
+Defaults to @option{true}.
+
+@item extra_ips
+If is set to list of comma separated ip addresses, scan for sources not only
+using mDNS but also use unicast ip addresses specified by this list.
+
+@end table
+
+@subsection Examples
+
+@itemize
+
+@item
+List input devices:
+@example
+ffmpeg -f libndi_newtek -find_sources 1 -i dummy
+@end example
+
+@item
+List local and remote input devices:
+@example
+ffmpeg -f libndi_newtek -extra_ips "192.168.10.10" -find_sources 1 -i dummy
+@end example
+
+@item
+Restream to NDI:
+@example
+ffmpeg -f libndi_newtek -i "DEV-5.INTERNAL.M1STEREO.TV (NDI_SOURCE_NAME_1)" -f libndi_newtek -y NDI_SOURCE_NAME_2
+@end example
+
+@item
+Restream remote NDI to local NDI:
+@example
+ffmpeg -f libndi_newtek -extra_ips "192.168.10.10" -i "DEV-5.REMOTE.M1STEREO.TV (NDI_SOURCE_NAME_1)" -f libndi_newtek -y NDI_SOURCE_NAME_2
+@end example
+
+
+@end itemize
+
 @section openal
 
 The OpenAL input device provides audio capture on all systems with a
diff --git a/doc/outdevs.texi b/doc/outdevs.texi
index aa41e29523..b4fad47950 100644
--- a/doc/outdevs.texi
+++ b/doc/outdevs.texi
@@ -296,6 +296,51 @@ ffmpeg -re -i INPUT -c:v rawvideo -pix_fmt bgra -f fbdev /dev/fb0
 
 See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1).
 
+@section libndi_newtek
+
+The libndi_newtek output device provides playback capabilities for using NDI (Network
+Device Interface, standard created by NewTek).
+
+Output filename is a NDI name.
+
+To enable this output device, you need the NDI SDK and you
+need to configure with the appropriate @code{--extra-cflags}
+and @code{--extra-ldflags}.
+
+NDI uses uyvy422 pixel format natively, but also supports bgra, bgr0, rgba and
+rgb0.
+
+@subsection Options
+
+@table @option
+
+@item reference_level
+The audio reference level in dB. This specifies how many dB above the
+reference level (+4dBU) is the full range of 16 bit audio.
+Defaults to @option{0}.
+
+@item clock_video
+These specify whether video "clock" themselves.
+Defaults to @option{false}.
+
+@item clock_audio
+These specify whether audio "clock" themselves.
+Defaults to @option{false}.
+
+@end table
+
+@subsection Examples
+
+@itemize
+
+@item
+Play video clip:
+@example
+ffmpeg -i "udp://@@239.1.1.1:10480?fifo_size=1000000&overrun_nonfatal=1" -vf "scale=720:576,fps=fps=25,setdar=dar=16/9,format=pix_fmts=uyvy422" -f libndi_newtek NEW_NDI1
+@end example
+
+@end itemize
+
 @section opengl
 OpenGL output device.
 
diff --git a/libavdevice/Makefile b/libavdevice/Makefile
index 53efda0514..8bef2a2f73 100644
--- a/libavdevice/Makefile
+++ b/libavdevice/Makefile
@@ -20,6 +20,8 @@ OBJS-$(CONFIG_BKTR_INDEV)                += bktr.o
 OBJS-$(CONFIG_CACA_OUTDEV)               += caca.o
 OBJS-$(CONFIG_DECKLINK_OUTDEV)           += decklink_enc.o decklink_enc_c.o decklink_common.o
 OBJS-$(CONFIG_DECKLINK_INDEV)            += decklink_dec.o decklink_dec_c.o decklink_common.o
+OBJS-$(CONFIG_LIBNDI_NEWTEK_OUTDEV)      += libndi_newtek_enc.o
+OBJS-$(CONFIG_LIBNDI_NEWTEK_INDEV)       += libndi_newtek_dec.o
 OBJS-$(CONFIG_DSHOW_INDEV)               += dshow_crossbar.o dshow.o dshow_enummediatypes.o \
                                             dshow_enumpins.o dshow_filter.o \
                                             dshow_pin.o dshow_common.o
@@ -62,6 +64,8 @@ SLIBOBJS-$(HAVE_GNU_WINDRES)             += avdeviceres.o
 SKIPHEADERS                              += decklink_common.h
 SKIPHEADERS-$(CONFIG_DECKLINK)           += decklink_enc.h decklink_dec.h \
                                             decklink_common_c.h
+SKIPHEADERS-$(CONFIG_LIBNDI_NEWTEK_INDEV) += libndi_newtek_common.h
+SKIPHEADERS-$(CONFIG_LIBNDI_NEWTEK_OUTDEV) += libndi_newtek_common.h
 SKIPHEADERS-$(CONFIG_DSHOW_INDEV)        += dshow_capture.h
 SKIPHEADERS-$(CONFIG_FBDEV_INDEV)        += fbdev_common.h
 SKIPHEADERS-$(CONFIG_FBDEV_OUTDEV)       += fbdev_common.h
diff --git a/libavdevice/alldevices.c b/libavdevice/alldevices.c
index 22323a0a44..5ffd97fca7 100644
--- a/libavdevice/alldevices.c
+++ b/libavdevice/alldevices.c
@@ -31,6 +31,8 @@ extern const AVInputFormat  ff_bktr_demuxer;
 extern const AVOutputFormat ff_caca_muxer;
 extern const AVInputFormat  ff_decklink_demuxer;
 extern const AVOutputFormat ff_decklink_muxer;
+extern const AVInputFormat  ff_libndi_newtek_demuxer;
+extern const AVOutputFormat ff_libndi_newtek_muxer;
 extern const AVInputFormat  ff_dshow_demuxer;
 extern const AVInputFormat  ff_fbdev_demuxer;
 extern const AVOutputFormat ff_fbdev_muxer;
-- 
2.35.1