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• What is the difference between "location" and "location-eng" metadata of a MP4 file ?

  10 décembre 2020, par Weihang Jian

  I am trying to retrieve GPS information from media files using ffprobe, for example :

  


  $ ffprobe -v quiet -show_format sample.mp4
[FORMAT]
filename=sample.mp4
nb_streams=2
nb_programs=0
format_name=mov,mp4,m4a,3gp,3g2,mj2
format_long_name=QuickTime / MOV
start_time=0.000000
duration=4.293000
size=11888152
bit_rate=22153556
probe_score=100
TAG:major_brand=mp42
TAG:minor_version=0
TAG:compatible_brands=isommp42
TAG:creation_time=2020-09-20T11:33:49.000000Z
TAG:location=+25.0731+121.3663/
TAG:location-eng=+25.0731+121.3663/
TAG:com.android.version=10
TAG:com.android.manufacturer=Google
TAG:com.android.model=Pixel
[/FORMAT]


  


  We can see that there are 2 tags that look like ISO6709 representations, location and location-eng.

  


  And here are my questions :

  


  

  1. What is the difference between location and location-eng ? It looks like they are always the same. Why do we need 2 different keys with same the value ?

  


  2. Are location and location-eng really in ISO6709 representations ? Is there any specification or standard I can refer to ?

  


  


  I would really appreciate your help.

  


• can i speedup text watermarking on ffmpeg ?

  3 juin 2020, par Easy Tricks For Android

  This command i used ffmpeg -i "1.mp4" -vf "drawtext=text='watermak_name':x=w-tw-50:y=h-th-50:fontfile=/Windows/fonts/calibri.ttf:fontsize=20:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=2" "output.mp4". watermark is working with this command, but it takes more time up-to 3 hours +

  



  this is the log i got from cmd

  

  

D :>ffmpeg -i "1.mp4" -vf "drawtext=text='watermak_name':x=w-tw-50:y=h/2-th:fontfile=/Windows/fonts/
  courbd.ttf:fontsize=20:fontcolor=white" -max_muxing_queue_size 9999 "1_out.mp4"
  


  
ffmpeg version git-2020-05-23-26b4509 Copyright (c) 2000-2020 the FFmpeg developers
  
 built with gcc 9.3.1 (GCC) 20200523
  
 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-libsrt —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-libvmaf —enable-libvorbis
  —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom
  —disable-w32threads —enable-libmfx —enable-ffnvcodec —enable-cuda-llvm —enable-cuvid —enable-d3d11va
  —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt —enable-amf
  
 libavutil 56. 48.100 / 56. 48.100
  
 libavcodec 58. 87.101 / 58. 87.101
  
 libavformat 58. 43.100 / 58. 43.100
  
 libavdevice 58. 9.103 / 58. 9.103
  
 libavfilter 7. 83.100 / 7. 83.100
  
 libswscale 5. 6.101 / 5. 6.101
  
 libswresample 3. 6.100 / 3. 6.100
  
 libpostproc 55. 6.100 / 55. 6.100
  
Truncating packet of size 95 to 83
  
Input #0, matroska,webm, from 'Uriyadi.mkv' :
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Downloaded From ABCD
  
 creation_time : 2020-05-22T16:44:46.000000Z
  
 Duration : 02:11:50.86, start : 0.000000, bitrate : 750 kb/s
  
 Stream #0:0(mal) : Video : h264 (High), yuv420p(progressive), 720x304 [SAR 1:1 DAR 45:19], 25 fps, 25 tbr, 1k
  tbn, 50 tbc (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
 Stream #0:1(mal) : Audio : mp3, 48000 Hz, stereo, fltp, 65 kb/s (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
Stream mapping :
  
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
 Stream #0:1 -> #0:1 (mp3 (mp3float) -> vorbis (libvorbis))
  
Press [q] to stop, [?] for help
  
Fontconfig error : Cannot load default config file
  
[Parsed_drawtext_0 @ 000001a470fe3f00] Using "C :/Windows/fonts/mingliub.ttc"
  
[libx264 @ 000001a470a10600] using SAR=1/1
  
[libx264 @ 000001a470a10600] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
[libx264 @ 000001a470a10600] profile High, level 3.0, 4:2:0, 8-bit
  
[libx264 @ 000001a470a10600] 264 - core 159 - 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=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=9 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 '1_out.mp4' :
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Lavf58.43.100
  
 Stream #0:0(mal) : Video : h264 (libx264) (H264 / 0x34363248), yuv420p, 720x304 [SAR 1:1 DAR 45:19], q=-1—1,
  25 fps, 1k tbn, 25 tbc (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Lavc58.87.101 libx264
  
 Side data :
  
 cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : N/A
  
 Stream #0:1(mal) : Audio : vorbis (libvorbis) (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Lavc58.87.101 libvorbis
  
frame=35791 fps=308 q=28.0 size= 107264kB time=00:23:52.10 bitrate= 613.6kbits/s speed=12.3x
  


• Not able to resolve issue : 'mobileffmpeg/ExecuteDelegate.h' file not found

  11 avril 2022, par Rahul Rathod

  Building failed with "react-native-ffmpeg" 'mobileffmpeg/ExecuteDelegate.h' file not found.

  


  

  • Xcode 13.2.1

  


  • react : 16.13.1 => 16.13.1

  


  • react-native : 0.63.4 => 0.63.4
react-native-ffmpeg : 0.4.4 => 0.4.4 And react-native-ffmpeg : 0.5.21 => 0.5.2

  


  • macOS Version : MacOS Monterey (13-inch, M1, 2020)

  


  


  I have tried both version react-native-ffmpeg : 0.5.2 and react-native-ffmpeg : 0.5.0 but still getting 'mobileffmpeg/ExecuteDelegate.h' file not found in xcode 13.2.1
From the last week RND with this issue but still not resolved this please help.