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• Compiled file for ffmpeg - iphone audio

  3 avril 2012, par Sreekumar Kalarikkal

  I would like to build an iPhone application which streams internet radio stations which includes .wma files also. So I found that in-order to play wma files, we need FFMPEG compiled files. I tried to build FFMPEG for iPhone, but having errors. I followed the guide here,

  I can able to build ffmpeg, but when I run the project using that library, I am getting the following error.

  Ld /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio normal armv6
  
  cd "/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio"
  
  setenv IPHONEOS_DEPLOYMENT_TARGET 3.0
  
  setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
  
  /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -arch armv6 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphoneos -L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../Common/build/Release-iphonesimulator" "-L/Users/sreekumar/Downloads/WR1.9 4/Common/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv6" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/MMS.build/Release-iphoneos/libmms.build/Objects-normal/armv7" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../../Compiled frameworks MMS and ffmpeg/WR1.9/MMS/build/Release-iphoneos" "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio/../../.." "-L/Volumes/DISC/Radio App/Running copy/WR1.9/WunderRadio" -F/Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Products/Release-iphoneos -filelist /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio.LinkFileList -dead_strip -ObjC -Wl --allow-multiple-definition -all_load -miphoneos-version-min=3.0 -framework MessageUI -framework Foundation -framework UIKit -framework CoreGraphics -framework SystemConfiguration -framework AudioToolbox -framework QuartzCore -framework MediaPlayer -weak_framework AVFoundation -framework CoreLocation -framework CFNetwork -lffmpegLib -llibmms -lCommon -lz -o /Users/sreekumar/Library/Developer/Xcode/DerivedData/WunderRadio-akpvnvqfzqleafaxhbibliqszxbp/Build/Intermediates/WunderRadio.build/Release-iphoneos/WunderRadio.build/Objects-normal/armv6/WunderRadio
  
  
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphoneos'
  
  ld: warning: directory not found for option '-L/Volumes/TUNEAGE/Projects/Debug-iphonesimulator'
  
  ld: warning: ignoring file /Volumes/DISC/Radio App/Running copy/WR1.9/Common/build/Release-iphonesimulator/libCommon.a, file was built for archive which is not the architecture being linked (armv6)
  
  ld: duplicate symbol _fourxm_decoder in /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) and /Volumes/DISC/Radio App/libffmpegLib.a(4xm.o) for architecture armv6
  
  collect2: ld returned 1 exit status
  
  Command /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1    

  So I think anybody of you may be successfully compiled and used this. If yes please give me some instructions to do this.

  Or if you can find the solution for the error. please let me know.

• New ffmpeg build issue : libavcodec/aacps_tablegen.h error : expected declaration specifiers or ‘...’ before numeric constant

  16 mars 2023, par gaamaa

  ffmpeg build error :
Raspberry Pi 4 B+,
Raspberry Pi OS Buster 32bit

  


  Two years back I built ffmpeg successfully with same script on the same setup.
Now I try building new version ffmpeg 5.0, I get below error and build fails.

  


  I nearly tried more than 10 times with even many other OS version.
Raspberry Pi OS Buster 32bit
Raspberry Pi OS Bullseys 32bit
Raspberry Pi OS Bullseys 64bit

  


  I even tried many scripts :
https://github.com/NRCHKB/nrchkb-ffmpeg-build
https://github.com/NRCHKB/nrchkb-ffmpeg-build/discussions/11
https://github.com/NRCHKB/nrchkb-ffmpeg-build/discussions/11#discussioncomment-5008967
https://gist.github.com/milankragujevic/bd38d796ea6eea27f229216d75d6c202
https://gist.github.com/wildrun0/86a890585857a36c90110cee275c45fd#file-compile-ffmpeg-sh

  


  Almost all are showing same error at the end.
Should I doubt the latest ffmpeg git source ?
https://github.com/FFmpeg/FFmpeg.git

  


  All showing same error on the files :
libavcodec/aacps_tablegen.h
libavcodec/aacps_tablegen_template.c

  


  No solution found on the internet on my searches
It will be highy appreciated if some ffmpeg experts solve this issue.

  


  ./config.h:594: warning: "CONFIG_HARDCODED_TABLES" redefined
 #define CONFIG_HARDCODED_TABLES 1

In file included from libavcodec/aacps_tablegen.c:24:
libavcodec/aacps_tablegen_template.c:25: note: this is the location of the previous definition
 #define CONFIG_HARDCODED_TABLES 0

In file included from libavcodec/aacps_tablegen_template.c:39,
                 from libavcodec/aacps_tablegen.c:24:
libavcodec/aacps_tablegen.h:46:24: error: expected declaration specifiers or ‘...’ before numeric constant
 static DECLARE_ALIGNED(16, float, f20_0_8) [ 8][8][2];
                        ^~
libavcodec/aacps_tablegen.h:46:35: error: unknown type name ‘f20_0_8’
 static DECLARE_ALIGNED(16, float, f20_0_8) [ 8][8][2];
                                   ^~~~~~~
libavcodec/aacps_tablegen.h:47:24: error: expected declaration specifiers or ‘...’ before numeric constant
 static DECLARE_ALIGNED(16, float, f34_0_12)[12][8][2];
                        ^~
libavcodec/aacps_tablegen.h:47:35: error: unknown type name ‘f34_0_12’
 static DECLARE_ALIGNED(16, float, f34_0_12)[12][8][2];
                                   ^~~~~~~~
libavcodec/aacps_tablegen.h:48:24: error: expected declaration specifiers or ‘...’ before numeric constant
 static DECLARE_ALIGNED(16, float, f34_1_8) [ 8][8][2];
                        ^~
libavcodec/aacps_tablegen.h:48:35: error: unknown type name ‘f34_1_8’
 static DECLARE_ALIGNED(16, float, f34_1_8) [ 8][8][2];
                                   ^~~~~~~
libavcodec/aacps_tablegen.h:49:24: error: expected declaration specifiers or ‘...’ before numeric constant
 static DECLARE_ALIGNED(16, float, f34_2_4) [ 4][8][2];
                        ^~
libavcodec/aacps_tablegen.h:49:35: error: unknown type name ‘f34_2_4’
 static DECLARE_ALIGNED(16, float, f34_2_4) [ 4][8][2];
                                   ^~~~~~~
libavcodec/aacps_tablegen.h:50:36: error: expected declaration specifiers or ‘...’ before numeric constant
 static TABLE_CONST DECLARE_ALIGNED(16, float, Q_fract_allpass)[2][50][3][2];
                                    ^~
libavcodec/aacps_tablegen.h:50:47: error: unknown type name ‘Q_fract_allpass’
 static TABLE_CONST DECLARE_ALIGNED(16, float, Q_fract_allpass)[2][50][3][2];
                                               ^~~~~~~~~~~~~~~
libavcodec/aacps_tablegen.h:51:24: error: expected declaration specifiers or ‘...’ before numeric constant
 static DECLARE_ALIGNED(16, float, phi_fract)[2][50][2];
                        ^~
libavcodec/aacps_tablegen.h:51:35: error: unknown type name ‘phi_fract’
 static DECLARE_ALIGNED(16, float, phi_fract)[2][50][2];
                                   ^~~~~~~~~
libavcodec/aacps_tablegen.h: In function ‘ps_tableinit’:
libavcodec/aacps_tablegen.h:187:13: error: ‘Q_fract_allpass’ undeclared (first use in this function)
             Q_fract_allpass[0][k][m][0] = cos(theta);
             ^~~~~~~~~~~~~~~
libavcodec/aacps_tablegen.h:187:13: note: each undeclared identifier is reported only once for each function it appears in
libavcodec/aacps_tablegen.h:191:9: error: ‘phi_fract’ undeclared (first use in this function)
         phi_fract[0][k][0] = cos(theta);
         ^~~~~~~~~
libavcodec/aacps_tablegen.h:210:29: error: ‘f20_0_8’ undeclared (first use in this function)
     make_filters_from_proto(f20_0_8,  g0_Q8,   8);
                             ^~~~~~~
libavcodec/aacps_tablegen.h:211:29: error: ‘f34_0_12’ undeclared (first use in this function)
     make_filters_from_proto(f34_0_12, g0_Q12, 12);
                             ^~~~~~~~
libavcodec/aacps_tablegen.h:212:29: error: ‘f34_1_8’ undeclared (first use in this function)
     make_filters_from_proto(f34_1_8,  g1_Q8,   8);
                             ^~~~~~~
libavcodec/aacps_tablegen.h:213:29: error: ‘f34_2_4’ undeclared (first use in this function)
     make_filters_from_proto(f34_2_4,  g2_Q4,   4);
                             ^~~~~~~
In file included from libavcodec/aacps_tablegen.c:24:
libavcodec/aacps_tablegen_template.c: In function ‘main’:
libavcodec/aacps_tablegen_template.c:88:28: error: ‘f20_0_8’ undeclared (first use in this function)
     ARRAY_RENAME(3d_array)(f20_0_8, 8, 8, 2);
                            ^~~~~~~
libavcodec/aacps_tablegen_template.c:91:28: error: ‘f34_0_12’ undeclared (first use in this function)
     ARRAY_RENAME(3d_array)(f34_0_12, 12, 8, 2);
                            ^~~~~~~~
libavcodec/aacps_tablegen_template.c:94:28: error: ‘f34_1_8’ undeclared (first use in this function)
     ARRAY_RENAME(3d_array)(f34_1_8, 8, 8, 2);
                            ^~~~~~~
libavcodec/aacps_tablegen_template.c:97:28: error: ‘f34_2_4’ undeclared (first use in this function)
     ARRAY_RENAME(3d_array)(f34_2_4, 4, 8, 2);
                            ^~~~~~~
libavcodec/aacps_tablegen_template.c:101:28: error: ‘Q_fract_allpass’ undeclared (first use in this function)
     ARRAY_RENAME(4d_array)(Q_fract_allpass, 2, 50, 3, 2);
                            ^~~~~~~~~~~~~~~
libavcodec/aacps_tablegen_template.c:104:28: error: ‘phi_fract’ undeclared (first use in this function)
     ARRAY_RENAME(3d_array)(phi_fract, 2, 50, 2);
                            ^~~~~~~~~
make: *** [ffbuild/common.mak:201: libavcodec/aacps_tablegen.o] Error 1
make: *** Waiting for unfinished jobs....



  


• Extract part of a video using ffmpeg_extract_subclip - get a clip longer than expected

  4 juin 2020, par rightly0716

  I'm trying to extract a part of a video and find the solution on this page very helpful : 
Extract part of a video using ffmpeg_extract_subclip - black frames

  



  The function write_videofile helps get what I need exactly but a bit slow. The ffmpeg_extract_subclip function is indeed very fast, but somehow generates a weird clip that is slightly longer than what I need. For example, if I use the cmd below (no matter with or without -copyinkf),

  



  ffmpeg -y -ss 218.00 -i input.mp4 -t 7.00 -vcodec copy -acodec copy output.mp4


  



  My output.mp4 will be 9 second long, with the last two seconds frozen with no audio. Anyone saw a similar issue before ? Thanks a lot !