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• cross compiling ffmpeg with conan fails : x86_64-w64-mingw32-ld : unrecognised emulation mode : 64

  6 février, par ovni jeroqui

  I'm trying to install ffmpeg (and some other libraries, but ffmpeg alone fails too) with conan to cross compile from linux (ubuntu) to windows.

  


  Conan throws an error on Running configure, inside build(). It says that x86_64-w64-mingw32-gcc is unable to create an executable file..

  


  On the config log I discovered it's because of a flag when running tests for x86_64-w64-mingw32-ld.

  


  x86_64-w64-mingw32-ld -m64 -L/home/jeroqui/.conan2/p/b/freetd8d522cfe5ed9/p/lib -L/home/jeroqui/.conan2/p/b/libsv9862cce477f3c/p/lib -L/home/jeroqui/.conan2/p/b/opensf32bb84148b27/p/lib -L/home/jeroqui/.conan2/p/b/vorbib2efb2d738443/p/lib -L/home/jeroqui/.conan2/p/b/libpn1c271e119251a/p/lib -L/home/jeroqui/.conan2/p/b/dav1d0798c06f2d7c3/p/lib -L/home/jeroqui/.conan2/p/b/libaoec0c6ff69236b/p/lib -L/home/jeroqui/.conan2/p/b/cpuin94c00ccfd6939/p/lib -L/home/jeroqui/.conan2/p/b/zlib09a824ccbeb0e/p/lib -L/home/jeroqui/.conan2/p/b/libwedcd84ab019a17/p/lib -L/home/jeroqui/.conan2/p/b/libfdbad6e447d67d4/p/lib -L/home/jeroqui/.conan2/p/b/libmpeb5a9a1a779c7/p/lib -L/home/jeroqui/.conan2/p/b/libvp0218afdff461c/p/lib -L/home/jeroqui/.conan2/p/b/libx2ec0d07d4a0565/p/lib -L/home/jeroqui/.conan2/p/b/libx23198ed0a549b9/p/lib -L/home/jeroqui/.conan2/p/b/opus8d5d63e1681f3/p/lib -L/home/jeroqui/.conan2/p/b/ogg813050272864b/p/lib -L/home/jeroqui/.conan2/p/b/openh3680a2c5cc945/p/lib -L/home/jeroqui/.conan2/p/b/openj09e5e15be595a/p/lib -L/home/jeroqui/.conan2/p/b/brotl58bc227a041f8/p/lib -L/home/jeroqui/.conan2/p/b/bzip2e67b6fd4c7720/p/lib -L/home/jeroqui/.conan2/p/b/libic229c7a1dc80e2/p/lib -L/home/jeroqui/.conan2/p/b/xz_ut8375de634122a/p/lib -m64 -o /tmp/ffconf.eAkkSIml/test.exe /tmp/ffconf.eAkkSIml/test.o
x86_64-w64-mingw32-ld: unrecognised emulation mode: 64
Supported emulations: i386pep i386pe
C compiler test failed.


  


  I've tried to get conan to not add the -m64 flag, but I haven't been able to get it working. Setting env variables like LDFLAGS= doesn't seam to work either on the conan profile, on the conanfile.py or directly on my terminal. Any suggestions ?

  


• ffmpeg make a movie with multiple numbers in filename [closed]

  22 juillet 2024, par NNN

  I have the following four files

  


  mov_00_00.png
mov_00_01.png
mov_01_00.png
mov_01_01.png


  


  I can make a movie using

  


  ffmpeg.exe -i mov_%02d_00.png -filter:v "setpts=10*PTS" out.mp4

  


  But this does not consider the files ending with 01.png.

  


  I tried

  


  ffmpeg.exe -i mov_%02d_%02d.png -filter:v "setpts=10*PTS" out.mp4


  


  But it says

  


  [in#0 @ 0000021982d69000] Error opening input: No such file or directory
Error opening input file mov_%02d_%02d.png.
Error opening input files: No such file or directory


  


  What command line magic do I need to use to make this work ? Thanks.

  


  Edit : I'm using the Windows version under WSL and the glob option is not supported.

  


• Getting a lot of Tail Silence when combining an image and audio into mp4 movie

  1er avril 2023, par Meryan

  As it can be seen from this snapshot the audio HELLO.mp3 combined with bitmap HELLO.jpg produced a movie HELLO_aac.mp4 that has a huge amount of tail silence

  


  

  


  The command line I was helped to put together is the following

  


  ======================== 
IN_FILES=-i ".\HELLO.JPG" -i ".\HELLO.MP3"    
OUT_FILE=".\HELLO_aac.MP4"   
EXE="S:\_BINS\FFmpeg 4.2.1 20200112\bin\ffmpeg.exe"  
OPTIONS= -loop 1   -i ".\HELLO.JPG" -i ".\HELLO.MP3"    -vf "scale=-1:1080,pad=1920:1080:(1920-iw)/2:(1080-ih)/2,setsar=1"  -c:v libx264 -profile:v main -pix_fmt yuv420p -r 24 -video_track_timescale 24000    -c:a aac    -shortest -y ".\HELLO_aac.MP4"     
======================== 



  


  Here is the captured output from FFmpeg

  


  ffmpeg version git-2020-01-10-3d894db Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20191125
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 38.100 / 56. 38.100
  libavcodec     58. 65.103 / 58. 65.103
  libavformat    58. 35.101 / 58. 35.101
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 70.101 /  7. 70.101
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, image2, from '.\HELLO.JPG':
  Duration: 00:00:00.04, start: 0.000000, bitrate: 23923 kb/s
    Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1600x1200 [SAR 120:120 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 25 tbc
[mp3 @ 000002019015d4c0] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from '.\HELLO.MP3':
  Metadata:
    genre           : Blues
    id3v2_priv.XMP  : <?xpacket begin="\xef\xbb\xbf" id="W5M0MpCehiHzreSzNTczkc9d"?>\x0a\x0a \x0a  s
    Stream #1:0: Audio: mp3, 24000 Hz, mono, fltp, 32 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  Stream #1:0 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[swscaler @ 0000020190b10380] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0000020190b10380] Warning: data is not aligned! This can lead to a speed loss
[libx264 @ 0000020190759300] using SAR=1/1
[libx264 @ 0000020190759300] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000020190759300] profile Main, level 4.0, 4:2:0, 8-bit
[libx264 @ 0000020190759300] 264 - core 158 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=34 lookahead_threads=5 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=24 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, mp4, to '.\HELLO_aac.MP4':
  Metadata:
    encoder         : Lavf58.35.101
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 24k tbn, 24 tbc
    Metadata:
      encoder         : Lavc58.65.103 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 24000 Hz, mono, fltp, 69 kb/s
    Metadata:
      encoder         : Lavc58.65.103 aac
frame=   69 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=0 drop=1 speed=   0x    
frame=   97 fps=0.0 q=-1.0 Lsize=     128kB time=00:00:03.91 bitrate= 267.1kbits/s dup=0 drop=2 speed=5.04x    
video:119kB audio:6kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.208101%
[libx264 @ 0000020190759300] frame I:1     Avg QP:12.88  size:103994
[libx264 @ 0000020190759300] frame P:24    Avg QP:14.05  size:   224
[libx264 @ 0000020190759300] frame B:72    Avg QP:12.67  size:   160
[libx264 @ 0000020190759300] consecutive B-frames:  1.0%  0.0%  0.0% 99.0%
[libx264 @ 0000020190759300] mb I  I16..4: 61.7%  0.0% 38.3%
[libx264 @ 0000020190759300] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  0.5%  0.1%  0.0%  0.0%  0.0%    skip:99.3%
[libx264 @ 0000020190759300] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  1.6%  0.0%  0.0%  direct: 0.0%  skip:98.4%  L0:81.1% L1:18.9% BI: 0.0%
[libx264 @ 0000020190759300] coded y,uvDC,uvAC intra: 34.5% 17.3% 15.6% inter: 0.0% 0.1% 0.0%
[libx264 @ 0000020190759300] i16 v,h,dc,p: 70% 19%  7%  3%
[libx264 @ 0000020190759300] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 22% 12%  4%  5%  5%  3%  5%  4%
[libx264 @ 0000020190759300] i8c dc,h,v,p: 80%  8% 10%  2%
[libx264 @ 0000020190759300] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0000020190759300] ref P L0: 97.6%  0.3%  1.5%  0.6%
[libx264 @ 0000020190759300] ref B L0:  1.8% 98.2%
[libx264 @ 0000020190759300] ref B L1: 99.9%  0.1%
[libx264 @ 0000020190759300] kb/s:239.28
[aac @ 000002019075bf40] Qavg: 8004.814
======================== 


  


  I have also tried the following command line

  


  "S:\_BINS\ffmpeg-2023-03-20\bin\ffmpeg.exe" -loop 1 -i "HELLO.JPG" -i "HELLO.MP3" -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -y -shortest "HELLO_aac.mp4"    


  


  With similar long dead tail silence ???