lavc: add VideoToolbox H.264 Encoder

Autodetected by default. Encode using -codec:v h264_videotoolbox.
Signed-off-by: Rick Kern <kernrj@gmail.com>
Signed-off-by: wm4 <nfxjfg@googlemail.com>

MAINTAINERS

@@ -279,6 +279,7 @@ Codecs:
   vc2*                                  Rostislav Pehlivanov
   vcr1.c                                Michael Niedermayer
   vda_h264_dec.c                        Xidorn Quan
+  videotoolboxenc.c                     Rick Kern
   vima.c                                Paul B Mahol
   vmnc.c                                Kostya Shishkov
   vorbisdec.c                           Denes Balatoni, David Conrad

configure

@@ -155,7 +155,6 @@ Hardware accelerators:
   --disable-vaapi          disable VAAPI code [autodetect]
   --disable-vda            disable VDA code [autodetect]
   --disable-vdpau          disable VDPAU code [autodetect]
-  --enable-videotoolbox    enable VideoToolbox code [autodetect]
 
 Individual component options:
   --disable-everything     disable all components listed below
@@ -289,6 +288,7 @@ External library support:
   --disable-sdl            disable sdl [autodetect]
   --disable-securetransport disable Secure Transport, needed for TLS support
                            on OSX if openssl and gnutls are not used [autodetect]
+  --disable-videotoolbox   disable VideoToolbox code [autodetect]
   --enable-x11grab         enable X11 grabbing (legacy) [no]
   --disable-xlib           disable xlib [autodetect]
   --disable-zlib           disable zlib [autodetect]
@@ -1509,6 +1509,7 @@ EXTERNAL_LIBRARY_LIST="
     schannel
     sdl
     securetransport
+    videotoolbox
     x11grab
     xlib
     zlib
@@ -1540,7 +1541,7 @@ HWACCEL_LIST="
     vaapi
     vda
     vdpau
-    videotoolbox
+    videotoolbox_hwaccel
     xvmc
 "
 
@@ -2484,11 +2485,13 @@ crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
 vaapi_deps="va_va_h"
-vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
-vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
+vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
+vda_framework_extralibs="-framework VideoDecodeAcceleration"
+vda_deps="vda_framework pthreads"
+vda_extralibs="-framework CoreFoundation -framework QuartzCore"
 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
-videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
-videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
+videotoolbox_hwaccel_deps="videotoolbox pthreads"
+videotoolbox_hwaccel_extralibs="-framework QuartzCore"
 xvmc_deps="X11_extensions_XvMClib_h"
 
 h263_vaapi_hwaccel_deps="vaapi"
@@ -2611,6 +2614,8 @@ mjpeg2jpeg_bsf_select="jpegtables"
 
 # external libraries
 chromaprint_muxer_deps="chromaprint"
+h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
+h264_videotoolbox_encoder_select="bzlib zlib iconv"
 libcelt_decoder_deps="libcelt"
 libdcadec_decoder_deps="libdcadec"
 libfaac_encoder_deps="libfaac"
@@ -2672,6 +2677,10 @@ libzvbi_teletext_decoder_deps="libzvbi"
 nvenc_encoder_deps="nvenc"
 nvenc_h264_encoder_deps="nvenc"
 nvenc_hevc_encoder_deps="nvenc"
+videotoolbox_deps="VideoToolbox_VideoToolbox_h"
+videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
+videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
+videotoolbox_encoder_suggest="vda_framework"
 
 # demuxers / muxers
 ac3_demuxer_select="ac3_parser"
@@ -3052,9 +3061,11 @@ sws_max_filter_size_default=256
 set_default sws_max_filter_size
 
 # Enable hwaccels by default.
-enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
+enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
 enable xlib
 
+enable vda_framework videotoolbox videotoolbox_encoder
+
 # build settings
 SHFLAGS='-shared -Wl,-soname,$$(@F)'
 LIBPREF="lib"
@@ -5449,6 +5460,7 @@ check_header vdpau/vdpau.h
 check_header vdpau/vdpau_x11.h
 check_header VideoDecodeAcceleration/VDADecoder.h
 check_header VideoToolbox/VideoToolbox.h
+check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
 check_header windows.h
 check_header X11/extensions/XvMClib.h
 check_header asm/types.h

libavcodec/Makefile

@@ -69,6 +69,7 @@ OBJS-$(CONFIG_H264CHROMA)              += h264chroma.o
 OBJS-$(CONFIG_H264DSP)                 += h264dsp.o h264idct.o
 OBJS-$(CONFIG_H264PRED)                += h264pred.o
 OBJS-$(CONFIG_H264QPEL)                += h264qpel.o
+OBJS-$(CONFIG_H264_VIDEOTOOLBOX_ENCODER) += videotoolboxenc.o
 OBJS-$(CONFIG_HPELDSP)                 += hpeldsp.o
 OBJS-$(CONFIG_HUFFMAN)                 += huffman.o
 OBJS-$(CONFIG_HUFFYUVDSP)              += huffyuvdsp.o

libavcodec/allcodecs.c

@@ -604,6 +604,7 @@ void avcodec_register_all(void)
      * above is available */
     REGISTER_ENCODER(LIBOPENH264,       libopenh264);
     REGISTER_ENCODER(H264_QSV,          h264_qsv);
+    REGISTER_ENCODER(H264_VIDEOTOOLBOX, h264_videotoolbox);
     REGISTER_ENCODER(NVENC,             nvenc);
     REGISTER_ENCODER(NVENC_H264,        nvenc_h264);
     REGISTER_ENCODER(NVENC_HEVC,        nvenc_hevc);