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Sur d’autres sites (6959)

  • FFMPEG screen regarding using gdi is working as expected when given offset, width and height on different screen size ?

    15 novembre 2018, par Mohsin Abbas

    I am working on an application that records the screen using ffmpeg. The recording works fine when I don’t specify offset, width and height.
    When I specify the offset, width and height on my device and records according to the area but when I run it on a big screen and it records smaller area than provided. I am using following command to record :

    ffmpeg -f gdigrab -framerate " + Framerate + " -offset_x " + OffsetX + " -offset_y " + OffsetY + " -video_size " + width + "x" + height + " -show_region 0 -i desktop " + FileName;

    I think ffmpeg don’t take screen resolution into account or something ?

  • OpenCV 3.4.3 - GStream not called when VideoWriting

    14 décembre 2018, par taubhi

    I’d like to succeed writing a file with OpenCV encoding with GStreamer.

    Thus I’m using the code :

    VideoWriter.open("appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=test2.mkv sync=false",
    
//cv::CAP_GSTREAMER, //set or not, I get the same problem
    
0, (double)25, //fourcc, fps
    
cv::Size(1024, 1024), 
    
true);

    And my problem :

    A video file called appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=test2.mkv sync=false is created (rather than test2.mkv), and it is empty. The same problem is corrected and seems to work in the following thread, without any effect for me : Opening a GStreamer pipeline from OpenCV with VideoWriter

    I tried, without success :

    • Add quotes to the file name test2 :
      "appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=\"test2.mkv\" sync=false" neither
    • Encode with different format : .flv rather than .mkv
    • Encode with different codec : omxh265enc rather than omxh264en

    I checked :

    • That GStreamer is well compiled with OpenCV ; the CMake of the OpenCV project outputs :

      Video I/O:Video for Windows : YES
      DC1394 : NO
      FFMPEG : YES (prebuilt binaries)
      avcodec : YES (ver 57.107.100)
      avformat : YES (ver 57.83.100)
      avutil : YES (ver 55.78.100)
      swscale : YES (ver 4.8.100)
      avresample : YES (ver 3.7.0)
      GStreamer :

      base : YES (ver 1.0)

      video : YES (ver 1.0)

      app : YES (ver 1.0)

      riff : YES (ver 1.0)

      pbutils : YES (ver 1.0)

      DirectShow : YES

      Media Foundation : YES

    • That FFMpeg is installed on my computer ; for this I used VLC :

      File -> Stream -> Add a file then stream
      New destination : RTP/MPEG Transport Stream
      Profile : Video - H.264 + MP3 (MP4)
      Then no error happens ; Note : an error occured with Video - H.265 + MP3
      (MP4), but I’m using omxh264enc in my code, not 265

    I’m struggled :/ Do you have any idea ?
    Thanks a lot :)

    Have a good day,

    Thibaut

    PS - Complete OpenCV CMake output :

    Selecting Windows SDK version 10.0.17134.0 to target Windows 10.0.17763.
    
AVX_512F is not supported by C++ compiler
    

    
AVX512_SKX is not supported by C++ compiler
    

    
Dispatch optimization AVX512_SKX is not available, skipped
    

    
libjpeg-turbo: VERSION = 1.5.3, BUILD = opencv-3.4.3-libjpeg-turbo
    

    
Looking for Mfapi.h
    

    
Looking for Mfapi.h - found
    

    
found Intel IPP (ICV version): 2017.0.3 [2017.0.3]
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippicv_win
    

    
found Intel IPP IW sources: 2017.0.3
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippiw_win
    

    
CUDA detected: 9.2
    

    
CUDA NVCC target flags: -gencode;arch=compute_30,code=sm_30;-gencode;arch=compute_35,code=sm_35;-gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_52,code=sm_52;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_61,code=sm_61;-gencode;arch=compute_70,code=sm_70;-D_FORCE_INLINES
    

    
Found apache ant: C:/NVPACK/apache-ant-1.8.2/bin/ant.bat (1.8.2)
    

    
Could NOT find Matlab (missing: MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS MATLAB_ROOT_DIR MATLAB_LIBRARIES MATLAB_LIBRARY_DIRS MATLAB_MEXEXT MATLAB_ARCH MATLAB_BIN)
    

    
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
    

    
Caffe: NO
    

    
Protobuf: NO
    

    
Glog: YES
    

    
freetype2: NO
    

    
harfbuzz: NO
    

    
Module opencv_ovis disabled because OGRE3D was not found
    

    
No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
    

    
Found installed version of gflags: E:/Git/gflags/BUILD-VS2015
    

    
Detected gflags version: 2.2.1
    

    
Checking SFM deps... FALSE
    

    
Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
    

    
Excluding from source files list: <build>/modules/dnn/layers/layers_common.avx512_skx.cpp
    

    
Tesseract: NO
    

    

    
General configuration for OpenCV 3.4.3 =====================================
    

    
Version control: unknown
    

    

    
Extra modules:
    

    
Location (extra): E:/OpenCV/3.4.3/opencv_contrib-3.4.3/modules
    

    
Version control (extra): unknown
    

    

    
Platform:
    

    
Timestamp: 2018-11-07T16:57:18Z
    

    
Host: Windows 10.0.17763 AMD64
    

    
CMake: 3.12.0-rc2
    

    
CMake generator: Visual Studio 14 2015 Win64
    

    
CMake build tool: C:/Program Files (x86)/MSBuild/14.0/bin/MSBuild.exe
    

    
MSVC: 1900
    

    

    
CPU/HW features:
    

    
Baseline: SSE SSE2 SSE3
    

    
requested: SSE3
    

    
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2
    

    
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
    

    
SSE4_1 (5 files): + SSSE3 SSE4_1
    

    
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
    

    
FP16 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
    

    
AVX (6 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
    

    
AVX2 (11 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
    

    

    
C/C++:
    

    
Built as dynamic libs?: YES
    

    
C++11: YES
    

    
C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe (ver 19.0.24215.1)
    

    
C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP16 /MD /O2 /Ob2 /DNDEBUG
    

    
C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP16 /MDd /Zi /Ob0 /Od /RTC1
    

    
C Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe
    

    
C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /MP16 /MD /O2 /Ob2 /DNDEBUG
    

    
C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /MP16 /MDd /Zi /Ob0 /Od /RTC1
    

    
Linker flags (Release): /machine:x64 /INCREMENTAL:NO
    

    
Linker flags (Debug): /machine:x64 /debug /INCREMENTAL
    

    
ccache: NO
    

    
Precompiled headers: YES
    

    
Extra dependencies: cudart.lib nppc.lib nppial.lib nppicc.lib nppicom.lib nppidei.lib nppif.lib nppig.lib nppim.lib nppist.lib nppisu.lib nppitc.lib npps.lib cublas.lib cufft.lib -LIBPATH:C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v9.2/lib/x64
    

    
3rdparty dependencies:
    

    

    
OpenCV modules:
    

    
To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dpm face features2d flann fuzzy hfs highgui img_hash imgcodecs imgproc java java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot python_bindings_generator reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    

    
Disabled: js world
    

    
Disabled by dependency: -
    

    
Unavailable: cnn_3dobj cvv freetype hdf matlab ovis python2 python3 sfm viz
    

    
Applications: tests perf_tests apps
    

    
Documentation: NO
    

    
Non-free algorithms: NO
    

    

    
Windows RT support: NO
    

    

    
GUI:
    

    
Win32 UI: YES
    

    
VTK support: NO
    

    

    
Media I/O:
    

    
ZLib: build (ver 1.2.11)
    

    
JPEG: build-libjpeg-turbo (ver 1.5.3-62)
    

    
WEBP: build (ver encoder: 0x020e)
    

    
PNG: build (ver 1.6.34)
    

    
TIFF: build (ver 42 - 4.0.9)
    

    
JPEG 2000: build (ver 1.900.1)
    

    
OpenEXR: build (ver 1.7.1)
    

    
HDR: YES
    

    
SUNRASTER: YES
    

    
PXM: YES
    

    

    
Video I/O:
    

    
Video for Windows: YES
    

    
DC1394: NO
    

    
FFMPEG: YES (prebuilt binaries)
    

    
avcodec: YES (ver 57.107.100)
    

    
avformat: YES (ver 57.83.100)
    

    
avutil: YES (ver 55.78.100)
    

    
swscale: YES (ver 4.8.100)
    

    
avresample: YES (ver 3.7.0)
    

    
GStreamer:
    

    
base: YES (ver 1.0)
    

    
video: YES (ver 1.0)
    

    
app: YES (ver 1.0)
    

    
riff: YES (ver 1.0)
    

    
pbutils: YES (ver 1.0)
    

    
DirectShow: YES
    

    
Media Foundation: YES
    

    

    
Parallel framework: Concurrency
    

    

    
Trace: YES (with Intel ITT)
    

    

    
Other third-party libraries:
    

    
Intel IPP: 2017.0.3 [2017.0.3]
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippicv_win
    

    
Intel IPP IW: sources (2017.0.3)
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippiw_win
    

    
Custom HAL: NO
    

    
Protobuf: build (3.5.1)
    

    

    
NVIDIA CUDA: YES (ver 9.2, CUFFT CUBLAS NVCUVID)
    

    
NVIDIA GPU arch: 30 35 37 50 52 60 61 70
    

    
NVIDIA PTX archs:
    

    

    
OpenCL: YES (no extra features)
    

    
Include path: E:/OpenCV/3.4.3/opencv-3.4.3/3rdparty/include/opencl/1.2
    

    
Link libraries: Dynamic load
    

    

    
Python (for build): C:/ProgramData/Miniconda3/python.exe
    

    

    
Java:
    

    
ant: C:/NVPACK/apache-ant-1.8.2/bin/ant.bat (ver 1.8.2)
    

    
JNI: C:/NVPACK/jdk1.8.0_77/include C:/NVPACK/jdk1.8.0_77/include/win32 C:/NVPACK/jdk1.8.0_77/include
    

    
Java wrappers: YES
    

    
Java tests: YES
    

    

    
Matlab: NO
    

    

    
Install to: E:/OpenCV/3.4.3/build/install
    

    
-----------------------------------------------------------------
    

    

    
Configuring done
    
</build>

  • Errors in compiling FFmpeg for windows10/aarch64 using Microsoft Visual Studio 2017 Preview edition

    29 octobre 2018, par Narsinga

    I am trying to compile FFmpeg (the Chromium version) for Windows10/Aarch64 configuration using Microsoft Visual Studio 2017 Preview community edition. I am running into errors in the assembly files as copied below (highlighted few errors). I believe FFmpeg is working for Linux/Aarch64 configuration (probably using GNU assembler) already in which case the same assembly code should also work for Microsoft ARM Macro Assembler as well. Please let me know if I am missing anything here and any pointers to help resolve the errors.

    D :\Work\Chromium_FFmpeg\chromium\src>ninja -C out\ARM64V8 third_party\ffmpeg
    ninja : Entering directory `out\ARM64V8’
    [2/9] ASM obj/third_party/ffmpeg/ffmpeg_internal/autorename_libavcodec_aarch64_fft_neon.obj
    FAILED : obj/third_party/ffmpeg/ffmpeg_internal/autorename_libavcodec_aarch64_fft_neon.obj
    D :/Work/Chromium_FFmpeg/depot_tools/win_tools-2_7_6_bin/python/bin/python.exe ../../build/toolchain/win/tool_wrapper.py asm-wrapper environment.arm64 armasm64.exe /Foobj/third_party/ffmpeg/ffmpeg_internal/autorename_libavcodec_aarch64_fft_neon.obj ../../third_party/ffmpeg/libavcodec/aarch64/autorename_libavcodec_aarch64_fft_neon.S
    Microsoft (R) ARM Macro Assembler Version 14.16.26926.0 for 64 bits
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\autorename_libavcodec_aarch64_fft_neon.S(1) : error A2003 : improper line syntax : /
    // File automatically generated. See crbug.com/495833.
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\autorename_libavcodec_aarch64_fft_neon.S(2) : error A2230 : Illegal preprocessor directive ; only "#line [filename]" is recognized
    include "fft_neon.S"
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\autorename_libavcodec_aarch64_fft_neon.S(3) : warning A4045 : missing END directive
    include "fft_neon.S"
    .
    .
    .
    [6/9] ASM obj/third_party/ffmpeg/ffmpeg_internal/mpegaudiodsp_neon.obj
    FAILED : obj/third_party/ffmpeg/ffmpeg_internal/mpegaudiodsp_neon.obj
    D :/Work/Chromium_FFmpeg/depot_tools/win_tools-2_7_6_bin/python/bin/python.exe ../../build/toolchain/win/tool_wrapper.py asm-wrapper environment.arm64 armasm64.exe /Foobj/third_party/ffmpeg/ffmpeg_internal/mpegaudiodsp_neon.obj ../../third_party/ffmpeg/libavcodec/aarch64/mpegaudiodsp_neon.S
    Microsoft (R) ARM Macro Assembler Version 14.16.26926.0 for 64 bits
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(1) : error A2003 : improper line syntax : /
    /*
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(2) : error A2079 : improper line syntax ; symbol expected
    * Copyright (c) 2014 Janne Grunau
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(3) : error A2079 : improper line syntax ; symbol expected
    *
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(4) : error A2079 : improper line syntax ; symbol expected
    * This file is part of FFmpeg.
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(5) : error A2079 : improper line syntax ; symbol expected
    *
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(6) : error A2079 : improper line syntax ; symbol expected
    * FFmpeg is free software ; you can redistribute it and/or
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(7) : error A2079 : improper line syntax ; symbol expected
    * modify it under the terms of the GNU Lesser General Public
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(8) : error A2079 : improper line syntax ; symbol expected
    * License as published by the Free Software Foundation ; either
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(9) : error A2079 : improper line syntax ; symbol expected
    * version 2.1 of the License, or (at your option) any later version.
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(10) : error A2079 : improper line syntax ; symbol expected
    *
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(11) : error A2079 : improper line syntax ; symbol expected
    * FFmpeg is distributed in the hope that it will be useful,
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(12) : error A2079 : improper line syntax ; symbol expected
    * but WITHOUT ANY WARRANTY ; without even the implied warranty of
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(13) : error A2079 : improper line syntax ; symbol expected
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(14) : error A2079 : improper line syntax ; symbol expected
    * Lesser General Public License for more details.
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(15) : error A2079 : improper line syntax ; symbol expected
    *
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(16) : error A2079 : improper line syntax ; symbol expected
    * You should have received a copy of the GNU Lesser General Public
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(17) : error A2079 : improper line syntax ; symbol expected
    * License along with FFmpeg ; if not, write to the Free Software
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(18) : error A2079 : improper line syntax ; symbol expected
    * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(19) : error A2079 : improper line syntax ; symbol expected
    */
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(21) : error A2230 : Illegal preprocessor directive ; only "#line [filename]" is recognized
    include "libavutil/aarch64/asm.S"
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(23) : error A2230 : Illegal preprocessor directive ; only "#line [filename]" is recognized
    define FRAC_BITS 23 // fractional bits for sb_samples and dct
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(24) : error A2230 : Illegal preprocessor directive ; only "#line [filename]" is recognized
    define WFRAC_BITS 16 // fractional bits for window
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(25) : error A2230 : Illegal preprocessor directive ; only "#line [filename]" is recognized
    define OUT_SHIFT (WFRAC_BITS + FRAC_BITS - 15)
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(27) : error A2034 : unknown opcode : tbl_rev128_s
    const tbl_rev128_s, align=4
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(28) : error A2034 : unknown opcode : .
    .byte 12, 13, 14, 15
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(29) : error A2034 : unknown opcode : .
    .byte 8, 9, 10, 11
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(30) : error A2034 : unknown opcode : .
    .byte 4, 5, 6, 7
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(31) : error A2034 : unknown opcode : .
    .byte 0, 1, 2, 3
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(34) : error A2003 : improper line syntax : .
    .macro apply_window type, st
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(35) : error A2034 : unknown opcode : ff_mpadsp_apply_window_
    function ff_mpadsp_apply_window_\type()_neon, export=1
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(42) : error A2034 : unknown opcode : movrel
    movrel x15, tbl_rev128_s
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(44) : error A2003 : improper line syntax : .
    .ifc \type, fixed
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(46) : error A2003 : improper line syntax : .
    .else
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(48) : error A2003 : improper line syntax : .
    .endif
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(53) : error A2173 : syntax error in expression
    sub x5, x5, x4 // samples2
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(53) : error A2003 : improper line syntax : Trouble parsing operands
    sub x5, x5, x4 // samples2
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(54) : error A2173 : syntax error in expression
    neg x13, x4 // -incr
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(54) : error A2003 : improper line syntax : Trouble parsing operands
    neg x13, x4 // -incr
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(56) : error A2003 : improper line syntax : .
    .ifc \type, fixed
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(57) : error A2173 : syntax error in expression
    ld1r v16.2s, [x2] // dither_state
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(57) : error A2003 : improper line syntax : Trouble parsing operands
    ld1r v16.2s, [x2] // dither_state
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(60) : error A2061 : illegal expression type ; expected absolute numeric
    movi v30.2d, #(1/ 64 * 8 * sizeof(int32_t)
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(101) : error A2003 : improper line syntax : Trouble parsing operands
    sub x10, x10, #64<<5 // 64 * 8 * sizeof(int32_t)
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(103) : error A2003 : improper line syntax : .
    .ifc \type, fixed
    D :\Work\Chromium_FFmpeg\chromium\src\third_party\ffmpeg\libavcodec\aarch64\mpegaudiodsp_neon.S(105) : error A2034 : unknown opcode : ext
    ext v28.16b, v29.16b, v28.16b, #8
    .
    .
    .

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