avcodec: Add NVENC encoder

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Changelog

@@ -2,6 +2,7 @@ Entries are sorted chronologically from oldest to youngest within each release,
 releases are sorted from youngest to oldest.
 
 version <next>:
+- nvenc encoder
 
 
 version 2.5:

MAINTAINERS

@@ -226,6 +226,7 @@ Codecs:
   msvideo1.c                            Mike Melanson
   nellymoserdec.c                       Benjamin Larsson
   nuv.c                                 Reimar Doeffinger
+  nvenc.c                               Timo Rothenpieler
   paf.*                                 Paul B Mahol
   pcx.c                                 Ivo van Poorten
   pgssubdec.c                           Reimar Doeffinger

configure

@@ -263,6 +263,7 @@ External library support:
   --enable-libzvbi         enable teletext support via libzvbi [no]
   --disable-lzma           disable lzma [autodetect]
   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
+  --enable-nvenc           enable NVIDIA NVENC support [no]
   --enable-openal          enable OpenAL 1.1 capture support [no]
   --enable-opencl          enable OpenCL code
   --enable-opengl          enable OpenGL rendering [no]
@@ -1400,6 +1401,7 @@ EXTERNAL_LIBRARY_LIST="
     libzmq
     libzvbi
     lzma
+    nvenc
     openal
     opencl
     opengl
@@ -2399,6 +2401,7 @@ libxvid_encoder_deps="libxvid"
 libutvideo_decoder_deps="libutvideo"
 libutvideo_encoder_deps="libutvideo"
 libzvbi_teletext_decoder_deps="libzvbi"
+nvenc_encoder_deps="nvenc"
 
 # demuxers / muxers
 ac3_demuxer_select="ac3_parser"
@@ -4357,6 +4360,7 @@ die_license_disabled gpl x11grab
 
 die_license_disabled nonfree libaacplus
 die_license_disabled nonfree libfaac
+die_license_disabled nonfree nvenc
 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
 enabled gpl && die_license_disabled_gpl nonfree openssl
 
@@ -4666,6 +4670,7 @@ fi
 frei0r_filter_extralibs='$ldl'
 frei0r_src_filter_extralibs='$ldl'
 ladspa_filter_extralibs='$ldl'
+nvenc_encoder_extralibs='$ldl'
 
 if ! disabled network; then
     check_func getaddrinfo $network_extralibs
@@ -4929,6 +4934,7 @@ enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
+enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; }
 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
                                die "ERROR: openal not found"; } &&

libavcodec/Makefile

@@ -347,6 +347,7 @@ OBJS-$(CONFIG_MXPEG_DECODER)           += mxpegdec.o
 OBJS-$(CONFIG_NELLYMOSER_DECODER)      += nellymoserdec.o nellymoser.o
 OBJS-$(CONFIG_NELLYMOSER_ENCODER)      += nellymoserenc.o nellymoser.o
 OBJS-$(CONFIG_NUV_DECODER)             += nuv.o rtjpeg.o
+OBJS-$(CONFIG_NVENC_ENCODER)           += nvenc.o
 OBJS-$(CONFIG_ON2AVC_DECODER)          += on2avc.o on2avcdata.o
 OBJS-$(CONFIG_OPUS_DECODER)            += opusdec.o opus.o opus_celt.o \
                                           opus_imdct.o opus_silk.o     \

libavcodec/allcodecs.c

@@ -223,6 +223,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(MVC2,              mvc2);
     REGISTER_DECODER(MXPEG,             mxpeg);
     REGISTER_DECODER(NUV,               nuv);
+    REGISTER_ENCODER(NVENC,             nvenc);
     REGISTER_DECODER(PAF_VIDEO,         paf_video);
     REGISTER_ENCDEC (PAM,               pam);
     REGISTER_ENCDEC (PBM,               pbm);