编辑：我成功地制作了鸭子起飞的10位编码。
第一种方式：我构建了一个10bit x264二进制文件，该二进制文件静态链接libx264。
cp -al x264-git x264-10bit # instead of changing my normal git checkout
cd x264-10bit
./configure --extra-cflags=-march=native --enable-static --disable-interlaced --bit-depth=10
make -j2
sudo install x264 /usr/local/bin/x264-10bit
mkfifo pipe.y4m
ffmpeg -v verbose -i in -pix_fmt yuv420p10le -strict experimental -f yuv4mpegpipe pipe.y4m
(open another shell window / tab / screen(1) window):
x264 pipe.y4m --crf 30 --preset ultrafast -o 10bit-420.mkv
（超快速和低质量，因为它是概念证明，而不是质量测试。）我没有使用swscale对其进行编译。（对于libavutil中的RGB pix fmt感到不满）。如果输入色彩空间不匹配--output-csp i444，则会出错，如果您不希望x264对色度进行降采样，这实际上很好。当我给它喂几帧时yuv444p14le.y4m，它工作正常，产生10位输出。（它可以截断位深度，但不能在没有swscale的情况下降低色度采样。）
第二种方式：用于LD_LIBRARY_PATH选择一个10bit的libx264.so
您可以对所有内容使用相同的ffmpeg动态链接二进制文件。
cp -al x264-git x264-10bit # instead of changing my normal git checkout
cd x264-10bit
./configure --extra-cflags=-march=native '--libdir=/usr/local/lib/high-bit-depth-codec' '--includedir=/usr/local/lib/high-bit-depth-codec/include' --disable-cli --enable-shared --disable-interlaced --bit-depth=10
make -j2
sudo make install-lib-shared # this Makefile target depends on install-lib-dev, hence setting --includedir
alias highdepth-ffmpeg='LD_LIBRARY_PATH=/usr/local/lib/high-bit-depth-codec ffmpeg'
highdepth-ffmpeg -v verbose -framerate 50 -f image2 \
-pattern_type glob -i ./3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/'*'.sgi \
-pix_fmt yuv420p10le -crf 30 -preset ultrafast \
-sws_flags +accurate_rnd+print_info \
with_ld_path.420p10.accurate_rnd.mkv
ffmpeg version N-68044-gb9dd809 Copyright (c) 2000-2015 the FFmpeg developers
built on Jan 14 2015 23:21:08 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-doc --disable-ffserver --enable-libbluray --enable-libschroedinger --enable-libtheora --enable-libx264 --enable-libx265 --enable-libmp3lame --enable-libopus --enable-libwebp --enable-libvpx --disable-outdev=oss --disable-indev=oss --disable-encoder=vorbis --enable-libvorbis --enable-libfdk-aac --disable-encoder=aac --disable-decoder=jpeg2000 --enable-libvidstab
libavutil 54. 16.100 / 54. 16.100
libavcodec 56. 20.100 / 56. 20.100
libavformat 56. 18.101 / 56. 18.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 7.101 / 5. 7.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from './3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/*.sgi':
Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: sgi, rgb48be, 1280x720, 50 tbr, 50 tbn, 50 tbc
[graph 0 input from stream 0:0 @ 0x1b6d8c0] w:1280 h:720 pixfmt:rgb48be tb:1/50 fr:50/1 sar:0/1 sws_param:flags=2
[auto-inserted scaler 0 @ 0x1b7dae0] w:iw h:ih flags:'0x41004' interl:0
[format @ 0x1b7e940] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
SwScaler: reducing / aligning filtersize 1 -> 4
Last message repeated 1 times
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 9 -> 8
[swscaler @ 0x1b500c0] bicubic scaler, from rgb48be to yuv420p10le using MMXEXT
[swscaler @ 0x1b500c0] 1280x720 -> 1280x720
[auto-inserted scaler 0 @ 0x1b7dae0] w:1280 h:720 fmt:rgb48be sar:0/1 -> w:1280 h:720 fmt:yuv420p10le sar:0/1 flags:0x41004
[libx264 @ 0x1b78da0] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
[libx264 @ 0x1b78da0] profile High 10, level 3.2, 4:2:0 10-bit
[libx264 @ 0x1b78da0] 264 - core 144 r2525+2 6a4fca8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=30.0 qcomp=0.60 qpmin=0 qpmax=81 qpstep=4 ip_ratio=1.40 aq=0
Output #0, matroska, to 'with_ld_path.420p10.accurate_rnd.mkv':
Metadata:
encoder : Lavf56.18.101
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p10le, 1280x720, q=-1--1, 50 fps, 1k tbn, 50 tbc
Metadata:
encoder : Lavc56.20.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (sgi (native) -> h264 (libx264))
Press [q] to stop, [?] for help
No more output streams to write to, finishing.e=00:00:09.84 bitrate=12060.2kbits/s
frame= 500 fps= 14 q=-1.0 Lsize= 14714kB time=00:00:10.00 bitrate=12053.5kbits/s
video:14709kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.031423%
Input file #0 (./3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/*.sgi):
Input stream #0:0 (video): 500 packets read (2765056000 bytes); 500 frames decoded;
Total: 500 packets (2765056000 bytes) demuxed
Output file #0 (with_ld_path.420p10.accurate_rnd.mkv):
Output stream #0:0 (video): 500 frames encoded; 500 packets muxed (15062147 bytes);
Total: 500 packets (15062147 bytes) muxed
[libx264 @ 0x1b78da0] frame I:2 Avg QP:43.00 size:144760
[libx264 @ 0x1b78da0] frame P:498 Avg QP:49.83 size: 29663
[libx264 @ 0x1b78da0] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0x1b78da0] mb P I16..4: 5.1% 0.0% 0.0% P16..4: 79.3% 0.0% 0.0% 0.0% 0.0% skip:15.6%
[libx264 @ 0x1b78da0] coded y,uvDC,uvAC intra: 67.8% 60.5% 41.9% inter: 50.1% 16.3% 2.8%
[libx264 @ 0x1b78da0] i16 v,h,dc,p: 5% 54% 33% 8%
[libx264 @ 0x1b78da0] i8c dc,h,v,p: 53% 39% 6% 3%
[libx264 @ 0x1b78da0] kb/s:12049.24
(same bitrate and stats as with the y4m pipe,
so it behaves the same with the same input data... good.)
显然，我没有尝试通过这些质量设置直观地看到任何东西。我只是希望它运行速度快，而又不浪费一堆磁盘空间，因为在尝试各种变化时，我总是最终制作很多输出文件。
没有将大量的y4m数据传输到单独的x264进程中，它只能以14 fps而不是12 fps的速度运行，因此可以实现超快的加速。较慢的编码将使开销减少。
我的来源是48位RGB。我发现precision_rnd对输出mkv没有影响。（具有no -sws_flags，with -sws_flags +accurate_rnd和和的位相同的结果-vf scale=flags=accurate_rnd，除了mkv标头中的一些位，可能是随机的mkv UUID。即使使用-qp 0，所以我也不会因为舍入错误而丢失它。 cmp -l f1 f2 | less比较二进制文件可能是经过一些初始差异后还是一样的。或者ssdeep -p。也许accurate_rnd现在是默认设置了吗？）
如果要让ffmpeg对色度进行降采样，则只有一个ffmpeg swscaler标志很重要：lanczos而不是默认的双三次。（我认为lanczos仍然被认为是高质量的最佳选择？已经有一段时间没有阅读了。）
highdepth-ffmpeg -i in -pix_fmt yuv420p10le ...encode...opts...
-vf scale=flags=lanczos -sws_flags +accurate_rnd+print_info with_ld_path.420p10.accurate_rnd.lanczos.mkv
添加+lanczos到-sws_flags不起作用：
[format @ 0x28e4940] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
[swscaler @ 0x28b60c0] Exactly one scaler algorithm must be chosen, got 204
[auto-inserted scaler 0 @ 0x28e3ae0] Failed to configure output pad on auto-inserted scaler 0
Error opening filters!
如果尝试输入的输入深度超过10位，则ffmpeg拒绝。
highdepth-ffmpeg ... -pix_fmt yuv444p14le
[graph 0 input from stream 0:0 @ 0x36ec9c0] w:1280 h:720 pixfmt:rgb48be tb:1/50 fr:50/1 sar:0/1 sws_param:flags=2
Incompatible pixel format 'yuv444p14le' for codec 'libx264', auto-selecting format 'yuv444p10le'
[Parsed_scale_0 @ 0x36e2a00] w:1280 h:720 fmt:rgb48be sar:0/1 -> w:1280 h:720 fmt:yuv444p10le sar:0/1 flags:0x200
[libx264 @ 0x3701d80] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
[libx264 @ 0x3701d80] profile High 4:4:4 Predictive, level 3.2, 4:4:4 10-bit
实际上，ffmpeg的libx264驱动程序始终坚持为x264提供准确的位深度。例如-pix_fmt yuv420p：
Incompatible pixel format 'yuv420p' for codec 'libx264', auto-selecting format 'yuv420p10le'
x264.h说：
/* x264_bit_depth:
* Specifies the number of bits per pixel that x264 uses. This is also the
* bit depth that x264 encodes in. If this value is > 8, x264 will read
* two bytes of input data for each pixel sample, and expect the upper
* (16-x264_bit_depth) bits to be zero.
* Note: The flag X264_CSP_HIGH_DEPTH must be used to specify the
* colorspace depth as well. */
X264_API extern const int x264_bit_depth;
我认为内部x264（CLI）总是必须上转换像素格式，代码没有每个功能的8位输入和10位输出版本。而且，我认为接受各种输入位深度只是在x264 CLI中，而不是库API。我很好奇，当您在设置了更高位的位置输入API输入时会发生什么...（ffpeg不允许您在不修改代码的情况下执行此操作，因此这不是任何人都需要担心的事情）。
frame.c:370: So this is why ffmpeg can't give 8-bit input to libx264
#if HIGH_BIT_DEPTH
if( !(src->img.i_csp & X264_CSP_HIGH_DEPTH) )
{
x264_log( h, X264_LOG_ERROR, "This build of x264 requires high depth input. Rebuild to support 8-bit input.\n" );
return -1;
}
#else
在未指定pix_fmt的情况下，ffmpeg选择yuv444p10le何时输入rgb输入。或使用libx264rgb，它将8位rgb馈送到期望16位（其中10位有效）的函数，并且段错误>。<。我会去上游报告
highdepth-ffmpeg -v verbose -framerate 50 -f image2 -pattern_type glob -i ./3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/'*'.sgi -qp 0 -preset ultrafast -sws_flags print_info+accurate_rnd -frames 2 -c:v libx264rgb lossless.rgb.mkv
ffmpeg version N-68044-gb9dd809 Copyright (c) 2000-2015 the FFmpeg developers
built on Jan 14 2015 23:21:08 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-doc --disable-ffserver --enable-libbluray --enable-libschroedinger --enable-libtheora --enable-libx264 --enable-libx265 --enable-libmp3lame --enable-libopus --enable-libwebp --enable-libvpx --disable-outdev=oss --disable-indev=oss --disable-encoder=vorbis --enable-libvorbis --enable-libfdk-aac --disable-encoder=aac --disable-decoder=jpeg2000 --enable-libvidstab
libavutil 54. 16.100 / 54. 16.100
libavcodec 56. 20.100 / 56. 20.100
libavformat 56. 18.101 / 56. 18.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 7.101 / 5. 7.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from './3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/*.sgi':
Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: sgi, rgb48be, 1280x720, 50 tbr, 50 tbn, 50 tbc
[graph 0 input from stream 0:0 @ 0x1eb9660] w:1280 h:720 pixfmt:rgb48be tb:1/50 fr:50/1 sar:0/1 sws_param:flags=2
[auto-inserted scaler 0 @ 0x1eba120] w:iw h:ih flags:'0x41000' interl:0
[format @ 0x1eb94c0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
SwScaler: reducing / aligning filtersize 1 -> 4
Last message repeated 1 times
SwScaler: reducing / aligning filtersize 1 -> 1
Last message repeated 1 times
[swscaler @ 0x1eba480] bicubic scaler, from rgb48be to rgb24 using MMXEXT
[swscaler @ 0x1eba480] 1280x720 -> 1280x720
[auto-inserted scaler 0 @ 0x1eba120] w:1280 h:720 fmt:rgb48be sar:0/1 -> w:1280 h:720 fmt:rgb24 sar:0/1 flags:0x41000
No pixel format specified, rgb24 for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264rgb @ 0x1ecf020] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
[libx264rgb @ 0x1ecf020] profile High 4:4:4 Predictive, level 3.2, 4:4:4 10-bit
[libx264rgb @ 0x1ecf020] 264 - core 144 r2525+2 6a4fca8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=0
Output #0, matroska, to 'lossless.rgb.mkv':
Metadata:
encoder : Lavf56.18.101
Stream #0:0: Video: h264 (libx264rgb) (H264 / 0x34363248), rgb24, 1280x720, q=-1--1, 50 fps, 1k tbn, 50 tbc
Metadata:
encoder : Lavc56.20.100 libx264rgb
Stream mapping:
Stream #0:0 -> #0:0 (sgi (native) -> h264 (libx264rgb))
Press [q] to stop, [?] for help
No more output streams to write to, finishing.
Segmentation fault (core dumped)
我会在上游报告。
无论如何，事实证明，为ffmpeg或要使用高位深度编译的libx264，libx265以及任何其他想要运行的任何其他程序构建双位深度环境非常容易。（这就是为什么我称其为“高深度”，而不是简称为“ 10bit”。）
编辑结束：以下是我的内容，无需重新编译。关于如何为Win64交叉编译ffmpeg的一些知识
我自己尝试过此操作，因为您没有尝试使用cmdline尝试将高位深度输入馈入x264。
ffmpeg像素格式名称（ffmpeg -pix_fmts）不只是指定排列，它们映射到确切的位排列，因此每种格式+位深度组合都具有不同的名称。我认为您期望-pix_fmt yuv422p的意思是“以与我的输入相同的位深度转换为422”。
维基百科表示，h.264仅在Hi444PP上支持8-14位深度，而其他则仅支持10bit。Hi444PP是唯一支持x264用于-qp 0或的预测无损编码的配置文件-crf 0。编辑：AFAICT，x264仍仅支持8位，9位或10位的编译。
无论如何，这是一条命令的无用输出，因为我没有重新编译本地x264，所以该命令不起作用。（但是它应该与重新编译的x264一起使用。如果我想自己玩，请编辑此答案。）
ffmpeg -v verbose -framerate 50 -f image2 -pattern_type glob -i ./3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/'*'.sgi -c:v libx264 -pix_fmt yuv420p10le -profile high10 yuv-high.mkv
ffmpeg version N-68044-gb9dd809 Copyright (c) 2000-2015 the FFmpeg developers
built on Jan 14 2015 23:21:08 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-doc --disable-ffserver --enable-libbluray --enable-libschroedinger --enable-libtheora --enable-libx264 --enable-libx265 --enable-libmp3lame --enable-libopus --enable-libwebp --enable-libvpx --disable-outdev=oss --disable-indev=oss --disable-encoder=vorbis --enable-libvorbis --enable-libfdk-aac --disable-encoder=aac --disable-decoder=jpeg2000 --enable-libvidstab
libavutil 54. 16.100 / 54. 16.100
libavcodec 56. 20.100 / 56. 20.100
libavformat 56. 18.101 / 56. 18.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 7.101 / 5. 7.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from './3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/*.sgi':
Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: sgi, rgb48be, 1280x720, 50 tbr, 50 tbn, 50 tbc
Please use -profile:a or -profile:v, -profile is ambiguous
File 'yuv-high.mkv' already exists. Overwrite ? [y/N] y
[graph 0 input from stream 0:0 @ 0x24797e0] w:1280 h:720 pixfmt:rgb48be tb:1/50 fr:50/1 sar:0/1 sws_param:flags=2
Incompatible pixel format 'yuv420p10le' for codec 'libx264', auto-selecting format 'yuv420p'
[auto-inserted scaler 0 @ 0x24938c0] w:iw h:ih flags:'0x4' interl:0
[format @ 0x2494680] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
[auto-inserted scaler 0 @ 0x24938c0] w:1280 h:720 fmt:rgb48be sar:0/1 -> w:1280 h:720 fmt:yuv420p sar:0/1 flags:0x4
[libx264 @ 0x248eda0] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowShuffle
[libx264 @ 0x248eda0] profile High, level 3.2
[libx264 @ 0x248eda0] 264 - core 144 r2525+2 6a4fca8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to 'yuv-high.mkv':
Metadata:
encoder : Lavf56.18.101
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p, 1280x720, q=-1--1, 50 fps, 1k tbn, 50 tbc
Metadata:
encoder : Lavc56.20.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (sgi (native) -> h264 (libx264))
Press [q] to stop, [?] for help
No more output streams to write to, finishing.e=00:00:09.02 bitrate=18034.6kbits/s
frame= 500 fps=6.6 q=-1.0 Lsize= 21568kB time=00:00:09.96 bitrate=17739.6kbits/s
video:21564kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.020773%
Input file #0 (./3_DucksTakeOff_720p50_CgrLevels_SINC_FILTER_SVTdec05_/*.sgi):
Input stream #0:0 (video): 500 packets read (2765056000 bytes); 500 frames decoded;
Total: 500 packets (2765056000 bytes) demuxed
Output file #0 (yuv-high.mkv):
Output stream #0:0 (video): 500 frames encoded; 500 packets muxed (22081186 bytes);
Total: 500 packets (22081186 bytes) muxed
[libx264 @ 0x248eda0] frame I:2 Avg QP:29.33 size:131874
[libx264 @ 0x248eda0] frame P:257 Avg QP:31.07 size: 75444
[libx264 @ 0x248eda0] frame B:241 Avg QP:33.54 size: 10073
[libx264 @ 0x248eda0] consecutive B-frames: 3.6% 96.4% 0.0% 0.0%
[libx264 @ 0x248eda0] mb I I16..4: 0.1% 71.9% 28.0%
[libx264 @ 0x248eda0] mb P I16..4: 0.0% 4.5% 1.1% P16..4: 36.1% 37.6% 19.6% 0.0% 0.0% skip: 1.0%
[libx264 @ 0x248eda0] mb B I16..4: 0.0% 0.2% 0.1% B16..8: 34.3% 2.6% 1.1% direct: 9.6% skip:52.2% L0: 6.2% L1:46.6% BI:47.2%
[libx264 @ 0x248eda0] 8x8 transform intra:78.4% inter:60.4%
[libx264 @ 0x248eda0] coded y,uvDC,uvAC intra: 98.3% 95.3% 85.9% inter: 51.7% 34.8% 12.8%
[libx264 @ 0x248eda0] i16 v,h,dc,p: 5% 77% 4% 14%
[libx264 @ 0x248eda0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 2% 43% 11% 3% 5% 2% 16% 2% 16%
[libx264 @ 0x248eda0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 3% 40% 9% 4% 6% 3% 17% 2% 16%
[libx264 @ 0x248eda0] i8c dc,h,v,p: 47% 40% 6% 7%
[libx264 @ 0x248eda0] Weighted P-Frames: Y:1.2% UV:0.4%
[libx264 @ 0x248eda0] ref P L0: 70.9% 26.5% 1.8% 0.7% 0.0%
[libx264 @ 0x248eda0] ref B L0: 99.5% 0.5%
[libx264 @ 0x248eda0] kb/s:17664.40
$ x264 --fullhelp | less
...
Output bit depth: 8 (configured at compile time)
注意Incompatible pixel format 'yuv420p10le' for codec 'libx264', auto-selecting format 'yuv420p'行。
可能我不需要-profile，并且使用高位深度的x264，它可以正常工作。（并可能选择444个10bit，ffmpeg称之为yuva444p10le。）我认为高位深度x264可以接受yuv444p14le，但仍然只能产生10位h.264。该cmdline x264 --fullhelp对于输出位深度从8到10（不是更高）非常明确。-profile high108bit x264只是默默忽略的怪异。
在内部，为高位深度而编译的x264使用16bpp来存储任何10位数据，因此它可能使用16位值进行运动搜索等。除非不考虑6位可以提高速度，否则DCT可能会比16位高，而不是10位。与在DCT之前四舍五入到10bit相比，这可能会产生稍微不同的DCT系数。（因此，将其转换为12、14或16位后，可能会得到不同的输出，先转换为x264再转换为10bit，然后转换为10bit。）不过，请在编写代码之前先看一下代码或尝试一下。不要相信这一段。：P
（编辑：ffmpeg不会向x264-10bit的每个组件提供超过10bits的任何内容。它将使用swscale来减小位深本身。）
我不知道在为高位深度编译时，修补x264和x265以为全局变量和API函数使用不同的名称会有多么困难。然后，您可以一次构建两个版本，并将ffmpeg链接到两个版本。ffmpeg libx264和libx264rgb包装器可以根据输入流来调用适当版本的api。（否则，您将需要-c:v libx264-deep或libx264rgb-deep，在ffmpeg中总共需要4个不同的x264“编解码器”。）
如何交叉编译Windows的ffmpeg
编辑：对于Windows，我认为没有比LD_LIBRARY_PATHlibx264 DLL 方便的了，所以您最好的选择还是构建一个高位深度的静态二进制文件，而另一个用于正常使用。深度libx264根本无法输出正常深度h.264。不只是速度上的损失，还不能。
为Windows编译自己的ffmpeg（静态二进制文件）的最简单方法是使用https://github.com/rdp/ffmpeg-windows-build-helpers。git在Linux机器上克隆回购库（或者可能是另一个具有正常工作的gcc的系统，例如OS X？），然后运行
./cross_compile_ffmpeg.sh --high-bitdepth=y --disable-nonfree=n --build-choice=win64
由于它是从源代码构建mingw-cross-compile GCC以及其他所有内容，因此第一次运行花费了大约8个小时。（gcc默认情况下会多次自我重建以进行引导，以防您最初使用错误的编译器进行编译。）
您可以使用来更新构建脚本git pull，然后重新运行它将为ffmpeg，x264，x265以及它从源代码编译的其他一些项目中提取最新的git更新。（大多数情况下，它只是下载tarball。）
我的Linux桌面正在显示其时代。我有一个常用于游戏的wintendo。自从我开始搞乱视频编码以来，我发现它的四核Sandybridge对此也非常有用。对于x265。x265的某些功能可能仅具有适用于AVX / SSE4的asm版本，因此在我的SSSE3 Linux机器（Conroe）上它又退回到C了。那还是以1fps的速度更明显...