Merge remote-tracking branch 'upstream/master'

configure

@@ -2886,13 +2886,15 @@ vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
 
 # demuxers / muxers
 ac3_demuxer_select="ac3_parser"
+aiff_muxer_select="iso_media"
 asf_demuxer_select="riffdec"
 asf_o_demuxer_select="riffdec"
 asf_muxer_select="riffenc"
 asf_stream_muxer_select="asf_muxer"
 avi_demuxer_select="iso_media riffdec exif"
 avi_muxer_select="riffenc"
 caf_demuxer_select="iso_media riffdec"
+caf_muxer_select="iso_media"
 dash_muxer_select="mp4_muxer"
 dirac_demuxer_select="dirac_parser"
 dts_demuxer_select="dca_parser"
@@ -5641,7 +5643,7 @@ check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
 check_type "windows.h d3d11.h" "ID3D11VideoContext"
 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
 
-check_type "va/va.h" "VAPictureParameterBufferHEVC"
+check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
 check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
@@ -6318,9 +6320,9 @@ EOF
     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
     check_func strtoull || add_cflags -Dstrtoull=_strtoui64
     # the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
-    # this flag should be re-checked on newer compiler releases and put under a
-    # version check once its fixed
-    check_cflags -d2SSAOptimizer-
+    # Issue has been fixed in MSVC v19.00.24218.
+    check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
+        check_cflags -d2SSAOptimizer-
 fi
 
 for pfx in "" host_; do

doc/APIchanges

@@ -15,6 +15,13 @@ libavutil:     2015-08-28
 
 API changes, most recent first:
 
+2017-01-22 - xxxxxxx - lavu 55.44.100 - lfg.h
+  Add av_lfg_init_from_data().
+
+2017-01-xx - xxxxxxx - lavc 57.74.100 - vaapi.h
+  Deprecate struct vaapi_context and the vaapi.h installed header.
+  Callers should set AVCodecContext.hw_frames_ctx instead.
+
 2017-01-12 - xxxxxxx - lavfi 6.69.100- buffersink.h
   Add av_buffersink_get_*() functions.
 

doc/filters.texi

@@ -6750,6 +6750,10 @@ option, check the "Color" section in the ffmpeg-utils manual.
 
 The default value of @var{boxcolor} is "white".
 
+@item line_spacing
+Set the line spacing in pixels of the border to be drawn around the box using @var{box}.
+The default value of @var{line_spacing} is 0.
+
 @item borderw
 Set the width of the border to be drawn around the text using @var{bordercolor}.
 The default value of @var{borderw} is 0.

ffmpeg.c

@@ -2908,6 +2908,10 @@ static int init_output_stream_streamcopy(OutputStream *ost)
     if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
         ost->st->time_base = av_add_q(av_stream_get_codec_timebase(ost->st), (AVRational){0, 1});
 
+    // copy estimated duration as a hint to the muxer
+    if (ost->st->duration <= 0 && ist->st->duration > 0)
+        ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
+
     // copy disposition
     ost->st->disposition = ist->st->disposition;
 
@@ -3333,6 +3337,11 @@ static int init_output_stream(OutputStream *ost, char *error, int error_len)
         // copy timebase while removing common factors
         if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
             ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
+
+        // copy estimated duration as a hint to the muxer
+        if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
+            ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
+
         ost->st->codec->codec= ost->enc_ctx->codec;
     } else if (ost->stream_copy) {
         ret = init_output_stream_streamcopy(ost);